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authorLinus Torvalds <torvalds@linux-foundation.org>2015-11-15 09:10:53 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-15 09:10:53 -0800
commitb84da9fa47cf6e8dfd71d673a2f744ec1cac452c (patch)
tree800a1cb1e939eb84f7e7018be64e94be5c972ca0
parent12b76f3bf336388916ddf8047156f9e9993ff4e9 (diff)
parentda34232641a91ca785a787c23c158488e459b938 (diff)
downloadlinux-stericsson-b84da9fa47cf6e8dfd71d673a2f744ec1cac452c.tar.gz
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle: "These are the highlists of the main MIPS pull request for 4.4: - Add latencytop support - Support appended DTBs - VDSO support and initially use it for gettimeofday. - Drop the .MIPS.abiflags and ELF NOTE sections from vmlinux - Support for the 5KE, an internal test core. - Switch all MIPS platfroms to libata drivers. - Improved support, cleanups for ralink and Lantiq platforms. - Support for the new xilfpga platform. - A number of DTB improvments for BMIPS. - Improved support for CM and CPS. - Minor JZ4740 and BCM47xx enhancements" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (120 commits) MIPS: idle: add case for CPU_5KE MIPS: Octeon: Support APPENDED_DTB MIPS: vmlinux: create a section for appended DTB MIPS: Clean up compat_siginfo_t MIPS: Fix PAGE_MASK definition MIPS: BMIPS: Enable GZIP ramdisk and timed printks MIPS: Add xilfpga defconfig MIPS: xilfpga: Add mipsfpga platform code MIPS: xilfpga: Add xilfpga device tree files. dt-bindings: MIPS: Document xilfpga bindings and boot style MIPS: Make MIPS_CMDLINE_DTB default MIPS: Make the kernel arguments from dtb available MIPS: Use USE_OF as the guard for appended dtb MIPS: BCM63XX: Use pr_* instead of printk MIPS: Loongson: Cleanup CONFIG_LOONGSON_SUSPEND. MIPS: lantiq: Disable xbar fpi burst mode MIPS: lantiq: Force the crossbar to big endian MIPS: lantiq: Initialize the USB core on boot MIPS: lantiq: Return correct value for fpi clock on ar9 MIPS: ralink: Add missing clock on rt305x ...
-rw-r--r--Documentation/devicetree/bindings/mips/img/xilfpga.txt83
-rw-r--r--arch/mips/Kbuild1
-rw-r--r--arch/mips/Kbuild.platforms1
-rw-r--r--arch/mips/Kconfig88
-rw-r--r--arch/mips/Kconfig.debug72
-rw-r--r--arch/mips/Makefile4
-rw-r--r--arch/mips/bcm47xx/setup.c19
-rw-r--r--arch/mips/bcm47xx/sprom.c46
-rw-r--r--arch/mips/bcm63xx/boards/board_bcm963xx.c14
-rw-r--r--arch/mips/bcm63xx/cpu.c12
-rw-r--r--arch/mips/bcm63xx/dev-pcmcia.c2
-rw-r--r--arch/mips/bcm63xx/irq.c2
-rw-r--r--arch/mips/bcm63xx/setup.c8
-rw-r--r--arch/mips/bcm63xx/timer.c2
-rw-r--r--arch/mips/bmips/setup.c1
-rw-r--r--arch/mips/boot/dts/Makefile1
-rw-r--r--arch/mips/boot/dts/brcm/bcm7346.dtsi114
-rw-r--r--arch/mips/boot/dts/brcm/bcm7358.dtsi62
-rw-r--r--arch/mips/boot/dts/brcm/bcm7360.dtsi62
-rw-r--r--arch/mips/boot/dts/brcm/bcm7362.dtsi94
-rw-r--r--arch/mips/boot/dts/brcm/bcm7425.dtsi42
-rw-r--r--arch/mips/boot/dts/brcm/bcm97346dbsmb.dts28
-rw-r--r--arch/mips/boot/dts/brcm/bcm97358svmb.dts16
-rw-r--r--arch/mips/boot/dts/brcm/bcm97360svmb.dts16
-rw-r--r--arch/mips/boot/dts/brcm/bcm97362svmb.dts20
-rw-r--r--arch/mips/boot/dts/mti/malta.dts4
-rw-r--r--arch/mips/boot/dts/xilfpga/Makefile9
-rw-r--r--arch/mips/boot/dts/xilfpga/microAptiv.dtsi21
-rw-r--r--arch/mips/boot/dts/xilfpga/nexys4ddr.dts46
-rw-r--r--arch/mips/cavium-octeon/setup.c11
-rw-r--r--arch/mips/configs/bigsur_defconfig12
-rw-r--r--arch/mips/configs/bmips_be_defconfig3
-rw-r--r--arch/mips/configs/bmips_stb_defconfig3
-rw-r--r--arch/mips/configs/capcella_defconfig6
-rw-r--r--arch/mips/configs/e55_defconfig6
-rw-r--r--arch/mips/configs/fuloong2e_defconfig14
-rw-r--r--arch/mips/configs/lasat_defconfig10
-rw-r--r--arch/mips/configs/lemote2f_defconfig11
-rw-r--r--arch/mips/configs/malta_defconfig6
-rw-r--r--arch/mips/configs/malta_kvm_defconfig16
-rw-r--r--arch/mips/configs/malta_kvm_guest_defconfig16
-rw-r--r--arch/mips/configs/malta_qemu_32r6_defconfig11
-rw-r--r--arch/mips/configs/maltaaprp_defconfig11
-rw-r--r--arch/mips/configs/maltasmvp_eva_defconfig11
-rw-r--r--arch/mips/configs/maltaup_defconfig11
-rw-r--r--arch/mips/configs/maltaup_xpa_defconfig16
-rw-r--r--arch/mips/configs/mpc30x_defconfig6
-rw-r--r--arch/mips/configs/xilfpga_defconfig40
-rw-r--r--arch/mips/include/asm/abi.h5
-rw-r--r--arch/mips/include/asm/atomic.h2
-rw-r--r--arch/mips/include/asm/bcache.h27
-rw-r--r--arch/mips/include/asm/cdmm.h11
-rw-r--r--arch/mips/include/asm/clocksource.h29
-rw-r--r--arch/mips/include/asm/compat.h62
-rw-r--r--arch/mips/include/asm/cpu-features.h6
-rw-r--r--arch/mips/include/asm/debug.h22
-rw-r--r--arch/mips/include/asm/elf.h7
-rw-r--r--arch/mips/include/asm/fw/fw.h16
-rw-r--r--arch/mips/include/asm/mach-bcm47xx/bcm47xx.h5
-rw-r--r--arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h14
-rw-r--r--arch/mips/include/asm/mach-malta/malta-dtshim.h29
-rw-r--r--arch/mips/include/asm/mach-ralink/mt7620.h8
-rw-r--r--arch/mips/include/asm/mach-ralink/ralink_regs.h17
-rw-r--r--arch/mips/include/asm/mach-ralink/rt305x.h21
-rw-r--r--arch/mips/include/asm/mach-xilfpga/irq.h18
-rw-r--r--arch/mips/include/asm/mips-cm.h78
-rw-r--r--arch/mips/include/asm/mips-cpc.h3
-rw-r--r--arch/mips/include/asm/mipsregs.h18
-rw-r--r--arch/mips/include/asm/page.h2
-rw-r--r--arch/mips/include/asm/processor.h8
-rw-r--r--arch/mips/include/asm/vdso.h139
-rw-r--r--arch/mips/include/uapi/asm/Kbuild2
-rw-r--r--arch/mips/include/uapi/asm/auxvec.h17
-rw-r--r--arch/mips/jz4740/board-qi_lb60.c13
-rw-r--r--arch/mips/kernel/Makefile1
-rw-r--r--arch/mips/kernel/cps-vec-ns16550.S202
-rw-r--r--arch/mips/kernel/cps-vec.S44
-rw-r--r--arch/mips/kernel/cpu-probe.c3
-rw-r--r--arch/mips/kernel/csrc-r4k.c44
-rw-r--r--arch/mips/kernel/idle.c17
-rw-r--r--arch/mips/kernel/mips-cm.c114
-rw-r--r--arch/mips/kernel/mips-cpc.c6
-rw-r--r--arch/mips/kernel/mips-r2-to-r6-emul.c2
-rw-r--r--arch/mips/kernel/segment.c2
-rw-r--r--arch/mips/kernel/setup.c29
-rw-r--r--arch/mips/kernel/signal.c12
-rw-r--r--arch/mips/kernel/signal32.c7
-rw-r--r--arch/mips/kernel/signal_n32.c5
-rw-r--r--arch/mips/kernel/smp-cps.c35
-rw-r--r--arch/mips/kernel/smp-gic.c2
-rw-r--r--arch/mips/kernel/spinlock_test.c4
-rw-r--r--arch/mips/kernel/stacktrace.c27
-rw-r--r--arch/mips/kernel/traps.c11
-rw-r--r--arch/mips/kernel/unaligned.c2
-rw-r--r--arch/mips/kernel/vdso.c207
-rw-r--r--arch/mips/kernel/vmlinux.lds.S15
-rw-r--r--arch/mips/kvm/locore.S8
-rw-r--r--arch/mips/lantiq/clk.c17
-rw-r--r--arch/mips/lantiq/clk.h13
-rw-r--r--arch/mips/lantiq/irq.c8
-rw-r--r--arch/mips/lantiq/prom.c2
-rw-r--r--arch/mips/lantiq/xway/clk.c180
-rw-r--r--arch/mips/lantiq/xway/prom.c35
-rw-r--r--arch/mips/lantiq/xway/reset.c196
-rw-r--r--arch/mips/lantiq/xway/sysctrl.c301
-rw-r--r--arch/mips/lib/Makefile2
-rw-r--r--arch/mips/lib/bswapdi.c15
-rw-r--r--arch/mips/lib/bswapsi.c11
-rw-r--r--arch/mips/loongson64/Kconfig5
-rw-r--r--arch/mips/loongson64/common/Makefile2
-rw-r--r--arch/mips/loongson64/lemote-2f/Makefile2
-rw-r--r--arch/mips/math-emu/me-debugfs.c2
-rw-r--r--arch/mips/mm/Makefile1
-rw-r--r--arch/mips/mm/sc-debugfs.c81
-rw-r--r--arch/mips/mm/sc-mips.c65
-rw-r--r--arch/mips/mm/tlbex.c97
-rw-r--r--arch/mips/mti-malta/Makefile15
-rw-r--r--arch/mips/mti-malta/malta-dtshim.c162
-rw-r--r--arch/mips/mti-malta/malta-init.c1
-rw-r--r--arch/mips/mti-malta/malta-memory.c131
-rw-r--r--arch/mips/mti-malta/malta-setup.c5
-rw-r--r--arch/mips/netlogic/xlp/dt.c1
-rw-r--r--arch/mips/pci/pci-rt3883.c6
-rw-r--r--arch/mips/pistachio/init.c1
-rw-r--r--arch/mips/ralink/cevt-rt3352.c2
-rw-r--r--arch/mips/ralink/early_printk.c26
-rw-r--r--arch/mips/ralink/mt7620.c63
-rw-r--r--arch/mips/ralink/of.c2
-rw-r--r--arch/mips/ralink/prom.c5
-rw-r--r--arch/mips/ralink/reset.c13
-rw-r--r--arch/mips/ralink/rt288x.c1
-rw-r--r--arch/mips/ralink/rt305x.c13
-rw-r--r--arch/mips/ralink/rt3883.c2
-rw-r--r--arch/mips/vdso/.gitignore4
-rw-r--r--arch/mips/vdso/Makefile160
-rw-r--r--arch/mips/vdso/elf.S68
-rw-r--r--arch/mips/vdso/genvdso.c293
-rw-r--r--arch/mips/vdso/genvdso.h187
-rw-r--r--arch/mips/vdso/gettimeofday.c232
-rw-r--r--arch/mips/vdso/sigreturn.S49
-rw-r--r--arch/mips/vdso/vdso.h89
-rw-r--r--arch/mips/vdso/vdso.lds.S105
-rw-r--r--arch/mips/xilfpga/Kconfig9
-rw-r--r--arch/mips/xilfpga/Makefile7
-rw-r--r--arch/mips/xilfpga/Platform3
-rw-r--r--arch/mips/xilfpga/init.c57
-rw-r--r--arch/mips/xilfpga/intc.c25
-rw-r--r--arch/mips/xilfpga/time.c41
-rw-r--r--drivers/clocksource/mips-gic-timer.c7
-rw-r--r--drivers/irqchip/irq-mips-gic.c14
-rw-r--r--include/linux/irqchip/mips-gic.h17
151 files changed, 4590 insertions, 749 deletions
diff --git a/Documentation/devicetree/bindings/mips/img/xilfpga.txt b/Documentation/devicetree/bindings/mips/img/xilfpga.txt
new file mode 100644
index 000000000000..57e7ee942166
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/img/xilfpga.txt
@@ -0,0 +1,83 @@
+Imagination University Program MIPSfpga
+=======================================
+
+Under the Imagination University Program, a microAptiv UP core has been
+released for academic usage.
+
+As we are dealing with a MIPS core instantiated on an FPGA, specifications
+are fluid and can be varied in RTL.
+
+This binding document is provided as baseline guidance for the example
+project provided by IMG.
+
+The example project runs on the Nexys4DDR board by Digilent powered by
+the ARTIX-7 FPGA by Xilinx.
+
+Relevant details about the example project and the Nexys4DDR board:
+
+- microAptiv UP core m14Kc
+- 50MHz clock speed
+- 128Mbyte DDR RAM at 0x0000_0000
+- 8Kbyte RAM at 0x1000_0000
+- axi_intc at 0x1020_0000
+- axi_uart16550 at 0x1040_0000
+- axi_gpio at 0x1060_0000
+- axi_i2c at 0x10A0_0000
+- custom_gpio at 0x10C0_0000
+- axi_ethernetlite at 0x10E0_0000
+- 8Kbyte BootRAM at 0x1FC0_0000
+
+Required properties:
+--------------------
+ - compatible: Must include "digilent,nexys4ddr","img,xilfpga".
+
+CPU nodes:
+----------
+A "cpus" node is required. Required properties:
+ - #address-cells: Must be 1.
+ - #size-cells: Must be 0.
+A CPU sub-node is also required for at least CPU 0. Required properties:
+ - device_type: Must be "cpu".
+ - compatible: Must be "mips,m14Kc".
+ - reg: Must be <0>.
+ - clocks: phandle to ext clock for fixed-clock received by MIPS core.
+
+Example:
+
+ compatible = "img,xilfpga","digilent,nexys4ddr";
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "mips,m14Kc";
+ reg = <0>;
+ clocks = <&ext>;
+ };
+ };
+
+ ext: ext {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ };
+
+Boot protocol:
+--------------
+
+The BootRAM is a writeable "RAM" in FPGA at 0x1FC0_0000.
+This is for easy reprogrammibility via JTAG.
+
+The BootRAM initializes the cache and the axi_uart peripheral.
+
+DDR initialization is already handled by a HW IP block.
+
+When the example project bitstream is loaded, the cpu_reset button
+needs to be pressed.
+
+The bootram initializes the cache and axi_uart.
+Then outputs MIPSFPGA\n\r on the serial port on the Nexys4DDR board.
+
+At this point, the board is ready to load the Linux kernel
+vmlinux file via JTAG.
diff --git a/arch/mips/Kbuild b/arch/mips/Kbuild
index dd295335891a..5c3f688a5232 100644
--- a/arch/mips/Kbuild
+++ b/arch/mips/Kbuild
@@ -17,6 +17,7 @@ obj- := $(platform-)
obj-y += kernel/
obj-y += mm/
obj-y += net/
+obj-y += vdso/
ifdef CONFIG_KVM
obj-y += kvm/
diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index a424e46b50af..a96c81d1d22e 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -33,6 +33,7 @@ platforms += sibyte
platforms += sni
platforms += txx9
platforms += vr41xx
+platforms += xilfpga
# include the platform specific files
include $(patsubst %, $(srctree)/arch/mips/%/Platform, $(platforms))
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e3aa5b0b4ef1..71683a853372 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -5,6 +5,7 @@ config MIPS
select ARCH_MIGHT_HAVE_PC_PARPORT
select ARCH_MIGHT_HAVE_PC_SERIO
select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
+ select ARCH_USE_BUILTIN_BSWAP
select HAVE_CONTEXT_TRACKING
select HAVE_GENERIC_DMA_COHERENT
select HAVE_IDE
@@ -60,6 +61,8 @@ config MIPS
select SYSCTL_EXCEPTION_TRACE
select HAVE_VIRT_CPU_ACCOUNTING_GEN
select HAVE_IRQ_TIME_ACCOUNTING
+ select GENERIC_TIME_VSYSCALL
+ select ARCH_CLOCKSOURCE_DATA
menu "Machine selection"
@@ -401,6 +404,28 @@ config MACH_PISTACHIO
help
This enables support for the IMG Pistachio SoC platform.
+config MACH_XILFPGA
+ bool "MIPSfpga Xilinx based boards"
+ select ARCH_REQUIRE_GPIOLIB
+ select BOOT_ELF32
+ select BOOT_RAW
+ select BUILTIN_DTB
+ select CEVT_R4K
+ select COMMON_CLK
+ select CSRC_R4K
+ select IRQ_MIPS_CPU
+ select LIBFDT
+ select MIPS_CPU_SCACHE
+ select SYS_HAS_EARLY_PRINTK
+ select SYS_HAS_CPU_MIPS32_R2
+ select SYS_SUPPORTS_32BIT_KERNEL
+ select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_ZBOOT_UART16550
+ select USE_OF
+ select USE_GENERIC_EARLY_PRINTK_8250
+ help
+ This enables support for the IMG University Program MIPSfpga platform.
+
config MIPS_MALTA
bool "MIPS Malta board"
select ARCH_MAY_HAVE_PC_FDC
@@ -424,6 +449,7 @@ config MIPS_MALTA
select MIPS_L1_CACHE_SHIFT_6
select PCI_GT64XXX_PCI0
select MIPS_MSC
+ select SMP_UP if SMP
select SWAP_IO_SPACE
select SYS_HAS_CPU_MIPS32_R1
select SYS_HAS_CPU_MIPS32_R2
@@ -449,6 +475,8 @@ config MIPS_MALTA
select SYS_SUPPORTS_ZBOOT
select USE_OF
select ZONE_DMA32 if 64BIT
+ select BUILTIN_DTB
+ select LIBFDT
help
This enables support for the MIPS Technologies Malta evaluation
board.
@@ -964,6 +992,7 @@ source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
source "arch/mips/netlogic/Kconfig"
source "arch/mips/paravirt/Kconfig"
+source "arch/mips/xilfpga/Kconfig"
endmenu
@@ -1036,6 +1065,9 @@ config CSRC_R4K
config CSRC_SB1250
bool
+config MIPS_CLOCK_VSYSCALL
+ def_bool CSRC_R4K || CLKSRC_MIPS_GIC
+
config GPIO_TXX9
select ARCH_REQUIRE_GPIOLIB
bool
@@ -2529,6 +2561,9 @@ choice
help
Allows the configuration of the timer frequency.
+ config HZ_24
+ bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
+
config HZ_48
bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
@@ -2552,6 +2587,9 @@ choice
endchoice
+config SYS_SUPPORTS_24HZ
+ bool
+
config SYS_SUPPORTS_48HZ
bool
@@ -2575,13 +2613,18 @@ config SYS_SUPPORTS_1024HZ
config SYS_SUPPORTS_ARBIT_HZ
bool
- default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
- !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
- !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
+ default y if !SYS_SUPPORTS_24HZ && \
+ !SYS_SUPPORTS_48HZ && \
+ !SYS_SUPPORTS_100HZ && \
+ !SYS_SUPPORTS_128HZ && \
+ !SYS_SUPPORTS_250HZ && \
+ !SYS_SUPPORTS_256HZ && \
+ !SYS_SUPPORTS_1000HZ && \
!SYS_SUPPORTS_1024HZ
config HZ
int
+ default 24 if HZ_24
default 48 if HZ_48
default 100 if HZ_100
default 128 if HZ_128
@@ -2685,7 +2728,7 @@ config BUILTIN_DTB
bool
choice
- prompt "Kernel appended dtb support" if OF
+ prompt "Kernel appended dtb support" if USE_OF
default MIPS_NO_APPENDED_DTB
config MIPS_NO_APPENDED_DTB
@@ -2693,6 +2736,20 @@ choice
help
Do not enable appended dtb support.
+ config MIPS_ELF_APPENDED_DTB
+ bool "vmlinux"
+ help
+ With this option, the boot code will look for a device tree binary
+ DTB) included in the vmlinux ELF section .appended_dtb. By default
+ it is empty and the DTB can be appended using binutils command
+ objcopy:
+
+ objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
+
+ This is meant as a backward compatiblity convenience for those
+ systems with a bootloader that can't be upgraded to accommodate
+ the documented boot protocol using a device tree.
+
config MIPS_RAW_APPENDED_DTB
bool "vmlinux.bin"
help
@@ -2729,6 +2786,25 @@ choice
if you don't intend to always append a DTB.
endchoice
+choice
+ prompt "Kernel command line type" if !CMDLINE_OVERRIDE
+ default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
+ !MIPS_MALTA && !MIPS_SEAD3 && \
+ !CAVIUM_OCTEON_SOC
+ default MIPS_CMDLINE_FROM_BOOTLOADER
+
+ config MIPS_CMDLINE_FROM_DTB
+ depends on USE_OF
+ bool "Dtb kernel arguments if available"
+
+ config MIPS_CMDLINE_DTB_EXTEND
+ depends on USE_OF
+ bool "Extend dtb kernel arguments with bootloader arguments"
+
+ config MIPS_CMDLINE_FROM_BOOTLOADER
+ bool "Bootloader kernel arguments if available"
+endchoice
+
endmenu
config LOCKDEP_SUPPORT
@@ -2739,6 +2815,10 @@ config STACKTRACE_SUPPORT
bool
default y
+config HAVE_LATENCYTOP_SUPPORT
+ bool
+ default y
+
config PGTABLE_LEVELS
int
default 3 if 64BIT && !PAGE_SIZE_64KB
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index e250524021ac..f0e314ceb8ba 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -113,4 +113,76 @@ config SPINLOCK_TEST
help
Add several files to the debugfs to test spinlock speed.
+if CPU_MIPSR6
+
+choice
+ prompt "Compact branch policy"
+ default MIPS_COMPACT_BRANCHES_OPTIMAL
+
+config MIPS_COMPACT_BRANCHES_NEVER
+ bool "Never (force delay slot branches)"
+ help
+ Pass the -mcompact-branches=never flag to the compiler in order to
+ force it to always emit branches with delay slots, and make no use
+ of the compact branch instructions introduced by MIPSr6. This is
+ useful if you suspect there may be an issue with compact branches in
+ either the compiler or the CPU.
+
+config MIPS_COMPACT_BRANCHES_OPTIMAL
+ bool "Optimal (use where beneficial)"
+ help
+ Pass the -mcompact-branches=optimal flag to the compiler in order for
+ it to make use of compact branch instructions where it deems them
+ beneficial, and use branches with delay slots elsewhere. This is the
+ default compiler behaviour, and should be used unless you have a
+ reason to choose otherwise.
+
+config MIPS_COMPACT_BRANCHES_ALWAYS
+ bool "Always (force compact branches)"
+ help
+ Pass the -mcompact-branches=always flag to the compiler in order to
+ force it to always emit compact branches, making no use of branch
+ instructions with delay slots. This can result in more compact code
+ which may be beneficial in some scenarios.
+
+endchoice
+
+endif # CPU_MIPSR6
+
+config SCACHE_DEBUGFS
+ bool "L2 cache debugfs entries"
+ depends on DEBUG_FS
+ help
+ Enable this to allow parts of the L2 cache configuration, such as
+ whether or not prefetching is enabled, to be exposed to userland
+ via debugfs.
+
+ If unsure, say N.
+
+menuconfig MIPS_CPS_NS16550
+ bool "CPS SMP NS16550 UART output"
+ depends on MIPS_CPS
+ help
+ Output debug information via an ns16550 compatible UART if exceptions
+ occur early in the boot process of a secondary core.
+
+if MIPS_CPS_NS16550
+
+config MIPS_CPS_NS16550_BASE
+ hex "UART Base Address"
+ default 0x1b0003f8 if MIPS_MALTA
+ help
+ The base address of the ns16550 compatible UART on which to output
+ debug information from the early stages of core startup.
+
+config MIPS_CPS_NS16550_SHIFT
+ int "UART Register Shift"
+ default 0 if MIPS_MALTA
+ help
+ The number of bits to shift ns16550 register indices by in order to
+ form their addresses. That is, log base 2 of the span between
+ adjacent ns16550 registers in the system.
+
+endif # MIPS_CPS_NS16550
+
endmenu
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 252e347958f3..3f70ba54ae21 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -204,6 +204,10 @@ toolchain-msa := $(call cc-option-yn,$(mips-cflags) -mhard-float -mfp64 -Wa$(
cflags-$(toolchain-msa) += -DTOOLCHAIN_SUPPORTS_MSA
endif
+cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_NEVER) += -mcompact-branches=never
+cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_OPTIMAL) += -mcompact-branches=optimal
+cflags-$(CONFIG_MIPS_COMPACT_BRANCHES_ALWAYS) += -mcompact-branches=always
+
#
# Firmware support
#
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index 17503a05938e..6d38948f0f1e 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -105,11 +105,28 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus,
struct ssb_init_invariants *iv)
{
char buf[20];
+ int len, err;
/* Fill boardinfo structure */
memset(&iv->boardinfo, 0 , sizeof(struct ssb_boardinfo));
- bcm47xx_fill_ssb_boardinfo(&iv->boardinfo, NULL);
+ len = bcm47xx_nvram_getenv("boardvendor", buf, sizeof(buf));
+ if (len > 0) {
+ err = kstrtou16(strim(buf), 0, &iv->boardinfo.vendor);
+ if (err)
+ pr_warn("Couldn't parse nvram board vendor entry with value \"%s\"\n",
+ buf);
+ }
+ if (!iv->boardinfo.vendor)
+ iv->boardinfo.vendor = SSB_BOARDVENDOR_BCM;
+
+ len = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
+ if (len > 0) {
+ err = kstrtou16(strim(buf), 0, &iv->boardinfo.type);
+ if (err)
+ pr_warn("Couldn't parse nvram board type entry with value \"%s\"\n",
+ buf);
+ }
memset(&iv->sprom, 0, sizeof(struct ssb_sprom));
bcm47xx_fill_sprom(&iv->sprom, NULL, false);
diff --git a/arch/mips/bcm47xx/sprom.c b/arch/mips/bcm47xx/sprom.c
index 2d5c7a7f24bb..a7e569c7968e 100644
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -60,9 +60,9 @@ static int get_nvram_var(const char *prefix, const char *postfix,
}
#define NVRAM_READ_VAL(type) \
-static void nvram_read_ ## type (const char *prefix, \
- const char *postfix, const char *name, \
- type *val, type allset, bool fallback) \
+static void nvram_read_ ## type(const char *prefix, \
+ const char *postfix, const char *name, \
+ type *val, type allset, bool fallback) \
{ \
char buf[100]; \
int err; \
@@ -422,7 +422,10 @@ static void bcm47xx_fill_sprom_path_r4589(struct ssb_sprom *sprom,
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
- struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
+ struct ssb_sprom_core_pwr_info *pwr_info;
+
+ pwr_info = &sprom->core_pwr_info[i];
+
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u8(prefix, postfix, "maxp2ga",
&pwr_info->maxpwr_2g, 0, fallback);
@@ -470,7 +473,10 @@ static void bcm47xx_fill_sprom_path_r45(struct ssb_sprom *sprom,
int i;
for (i = 0; i < ARRAY_SIZE(sprom->core_pwr_info); i++) {
- struct ssb_sprom_core_pwr_info *pwr_info = &sprom->core_pwr_info[i];
+ struct ssb_sprom_core_pwr_info *pwr_info;
+
+ pwr_info = &sprom->core_pwr_info[i];
+
snprintf(postfix, sizeof(postfix), "%i", i);
nvram_read_u16(prefix, postfix, "pa2gw3a",
&pwr_info->pa_2g[3], 0, fallback);
@@ -535,10 +541,11 @@ static void bcm47xx_fill_sprom_ethernet(struct ssb_sprom *sprom,
nvram_read_macaddr(prefix, "il0macaddr", sprom->il0mac, fallback);
/* The address prefix 00:90:4C is used by Broadcom in their initial
- configuration. When a mac address with the prefix 00:90:4C is used
- all devices from the same series are sharing the same mac address.
- To prevent mac address collisions we replace them with a mac address
- based on the base address. */
+ * configuration. When a mac address with the prefix 00:90:4C is used
+ * all devices from the same series are sharing the same mac address.
+ * To prevent mac address collisions we replace them with a mac address
+ * based on the base address.
+ */
if (!bcm47xx_is_valid_mac(sprom->il0mac)) {
u8 mac[6];
@@ -592,32 +599,23 @@ void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
bcm47xx_sprom_fill_auto(sprom, prefix, fallback);
}
-#ifdef CONFIG_BCM47XX_SSB
-void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
- const char *prefix)
-{
- nvram_read_u16(prefix, NULL, "boardvendor", &boardinfo->vendor, 0,
- true);
- if (!boardinfo->vendor)
- boardinfo->vendor = SSB_BOARDVENDOR_BCM;
-
- nvram_read_u16(prefix, NULL, "boardtype", &boardinfo->type, 0, true);
-}
-#endif
-
#if defined(CONFIG_BCM47XX_SSB)
static int bcm47xx_get_sprom_ssb(struct ssb_bus *bus, struct ssb_sprom *out)
{
char prefix[10];
- if (bus->bustype == SSB_BUSTYPE_PCI) {
+ switch (bus->bustype) {
+ case SSB_BUSTYPE_SSB:
+ bcm47xx_fill_sprom(out, NULL, false);
+ return 0;
+ case SSB_BUSTYPE_PCI:
memset(out, 0, sizeof(struct ssb_sprom));
snprintf(prefix, sizeof(prefix), "pci/%u/%u/",
bus->host_pci->bus->number + 1,
PCI_SLOT(bus->host_pci->devfn));
bcm47xx_fill_sprom(out, prefix, false);
return 0;
- } else {
+ default:
pr_warn("Unable to fill SPROM for given bustype.\n");
return -EINVAL;
}
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 33727e7f0c79..b2097c0d2ed7 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -7,6 +7,8 @@
* Copyright (C) 2008 Florian Fainelli <florian@openwrt.org>
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
@@ -31,7 +33,6 @@
#include <uapi/linux/bcm933xx_hcs.h>
-#define PFX "board_bcm963xx: "
#define HCS_OFFSET_128K 0x20000
@@ -740,7 +741,7 @@ int bcm63xx_get_fallback_sprom(struct ssb_bus *bus, struct ssb_sprom *out)
memcpy(out, &bcm63xx_sprom, sizeof(struct ssb_sprom));
return 0;
} else {
- printk(KERN_ERR PFX "unable to fill SPROM for given bustype.\n");
+ pr_err("unable to fill SPROM for given bustype\n");
return -EINVAL;
}
}
@@ -784,7 +785,7 @@ void __init board_prom_init(void)
cfe[5], cfe[6], cfe[7], cfe[8], cfe[9]);
else
strcpy(cfe_version, "unknown");
- printk(KERN_INFO PFX "CFE version: %s\n", cfe_version);
+ pr_info("CFE version: %s\n", cfe_version);
bcm63xx_nvram_init(boot_addr + BCM963XX_NVRAM_OFFSET);
@@ -808,8 +809,7 @@ void __init board_prom_init(void)
char name[17];
memcpy(name, board_name, 16);
name[16] = 0;
- printk(KERN_ERR PFX "unknown bcm963xx board: %s\n",
- name);
+ pr_err("unknown bcm963xx board: %s\n", name);
return;
}
@@ -854,7 +854,7 @@ void __init board_setup(void)
{
if (!board.name[0])
panic("unable to detect bcm963xx board");
- printk(KERN_INFO PFX "board name: %s\n", board.name);
+ pr_info("board name: %s\n", board.name);
/* make sure we're running on expected cpu */
if (bcm63xx_get_cpu_id() != board.expected_cpu_id)
@@ -910,7 +910,7 @@ int __init board_register_devices(void)
memcpy(bcm63xx_sprom.et1mac, bcm63xx_sprom.il0mac, ETH_ALEN);
if (ssb_arch_register_fallback_sprom(
&bcm63xx_get_fallback_sprom) < 0)
- pr_err(PFX "failed to register fallback SPROM\n");
+ pr_err("failed to register fallback SPROM\n");
}
#endif
diff --git a/arch/mips/bcm63xx/cpu.c b/arch/mips/bcm63xx/cpu.c
index 307ec8b8e41c..1c7c3fbfa1f3 100644
--- a/arch/mips/bcm63xx/cpu.c
+++ b/arch/mips/bcm63xx/cpu.c
@@ -376,10 +376,10 @@ void __init bcm63xx_cpu_init(void)
bcm63xx_cpu_freq = detect_cpu_clock();
bcm63xx_memory_size = detect_memory_size();
- printk(KERN_INFO "Detected Broadcom 0x%04x CPU revision %02x\n",
- bcm63xx_cpu_id, bcm63xx_cpu_rev);
- printk(KERN_INFO "CPU frequency is %u MHz\n",
- bcm63xx_cpu_freq / 1000000);
- printk(KERN_INFO "%uMB of RAM installed\n",
- bcm63xx_memory_size >> 20);
+ pr_info("Detected Broadcom 0x%04x CPU revision %02x\n",
+ bcm63xx_cpu_id, bcm63xx_cpu_rev);
+ pr_info("CPU frequency is %u MHz\n",
+ bcm63xx_cpu_freq / 1000000);
+ pr_info("%uMB of RAM installed\n",
+ bcm63xx_memory_size >> 20);
}
diff --git a/arch/mips/bcm63xx/dev-pcmcia.c b/arch/mips/bcm63xx/dev-pcmcia.c
index a551bab5ecb9..9496cd236951 100644
--- a/arch/mips/bcm63xx/dev-pcmcia.c
+++ b/arch/mips/bcm63xx/dev-pcmcia.c
@@ -139,6 +139,6 @@ int __init bcm63xx_pcmcia_register(void)
return platform_device_register(&bcm63xx_pcmcia_device);
out_err:
- printk(KERN_ERR "unable to set pcmcia chip select\n");
+ pr_err("unable to set pcmcia chip select\n");
return ret;
}
diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c
index 1a47ec2a0906..c96139097ae2 100644
--- a/arch/mips/bcm63xx/irq.c
+++ b/arch/mips/bcm63xx/irq.c
@@ -311,7 +311,7 @@ static int bcm63xx_external_irq_set_type(struct irq_data *d,
break;
default:
- printk(KERN_ERR "bogus flow type combination given !\n");
+ pr_err("bogus flow type combination given !\n");
return -EINVAL;
}
diff --git a/arch/mips/bcm63xx/setup.c b/arch/mips/bcm63xx/setup.c
index 240fb4ffa55c..2be9caaa2085 100644
--- a/arch/mips/bcm63xx/setup.c
+++ b/arch/mips/bcm63xx/setup.c
@@ -24,7 +24,7 @@
void bcm63xx_machine_halt(void)
{
- printk(KERN_INFO "System halted\n");
+ pr_info("System halted\n");
while (1)
;
}
@@ -34,7 +34,7 @@ static void bcm6348_a1_reboot(void)
u32 reg;
/* soft reset all blocks */
- printk(KERN_INFO "soft-resetting all blocks ...\n");
+ pr_info("soft-resetting all blocks ...\n");
reg = bcm_perf_readl(PERF_SOFTRESET_REG);
reg &= ~SOFTRESET_6348_ALL;
bcm_perf_writel(reg, PERF_SOFTRESET_REG);
@@ -46,7 +46,7 @@ static void bcm6348_a1_reboot(void)
mdelay(10);
/* Jump to the power on address. */
- printk(KERN_INFO "jumping to reset vector.\n");
+ pr_info("jumping to reset vector.\n");
/* set high vectors (base at 0xbfc00000 */
set_c0_status(ST0_BEV | ST0_ERL);
/* run uncached in kseg0 */
@@ -110,7 +110,7 @@ void bcm63xx_machine_reboot(void)
if (BCMCPU_IS_6348() && (bcm63xx_get_cpu_rev() == 0xa1))
bcm6348_a1_reboot();
- printk(KERN_INFO "triggering watchdog soft-reset...\n");
+ pr_info("triggering watchdog soft-reset...\n");
if (BCMCPU_IS_6328()) {
bcm_wdt_writel(1, WDT_SOFTRESET_REG);
} else {
diff --git a/arch/mips/bcm63xx/timer.c b/arch/mips/bcm63xx/timer.c
index 5f1135981568..2110359c00e5 100644
--- a/arch/mips/bcm63xx/timer.c
+++ b/arch/mips/bcm63xx/timer.c
@@ -195,7 +195,7 @@ int bcm63xx_timer_init(void)
irq = bcm63xx_get_irq_number(IRQ_TIMER);
ret = request_irq(irq, timer_interrupt, 0, "bcm63xx_timer", NULL);
if (ret) {
- printk(KERN_ERR "bcm63xx_timer: failed to register irq\n");
+ pr_err("%s: failed to register irq\n", __func__);
return ret;
}
diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c
index 526ec2789bb9..5b16d2955fbb 100644
--- a/arch/mips/bmips/setup.c
+++ b/arch/mips/bmips/setup.c
@@ -157,7 +157,6 @@ void __init plat_mem_setup(void)
panic("no dtb found");
__dt_setup_arch(dtb);
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
for (q = bmips_quirk_list; q->quirk_fn; q++) {
if (of_flat_dt_is_compatible(of_get_flat_dt_root(),
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index bac7b8dab9a4..a0bf516ec394 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -6,6 +6,7 @@ dts-dirs += mti
dts-dirs += netlogic
dts-dirs += qca
dts-dirs += ralink
+dts-dirs += xilfpga
obj-y := $(addsuffix /, $(dts-dirs))
diff --git a/arch/mips/boot/dts/brcm/bcm7346.dtsi b/arch/mips/boot/dts/brcm/bcm7346.dtsi
index d817bb46b934..d4bf52cfcf17 100644
--- a/arch/mips/boot/dts/brcm/bcm7346.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7346.dtsi
@@ -87,14 +87,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406780 0x8>;
- brcm,int-map-mask = <0x44>;
+ brcm,int-map-mask = <0x44>, <0xf000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
- interrupts = <59>;
+ interrupts = <59>, <57>;
+ interrupt-names = "upg_main", "upg_bsc";
+ };
+
+ upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
+ compatible = "brcm,bcm7120-l2-intc";
+ reg = <0x408b80 0x8>;
+
+ brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
+ brcm,int-fwd-mask = <0>;
+ brcm,irq-can-wake;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&periph_intc>;
+ interrupts = <60>, <58>, <62>;
+ interrupt-names = "upg_main_aon", "upg_bsc_aon",
+ "upg_spi";
};
sun_top_ctrl: syscon@404000 {
@@ -144,6 +162,56 @@
status = "disabled";
};
+ bsca: i2c@406200 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406200 0x58>;
+ interrupts = <24>;
+ interrupt-names = "upg_bsca";
+ status = "disabled";
+ };
+
+ bscb: i2c@406280 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406280 0x58>;
+ interrupts = <25>;
+ interrupt-names = "upg_bscb";
+ status = "disabled";
+ };
+
+ bscc: i2c@406300 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406300 0x58>;
+ interrupts = <26>;
+ interrupt-names = "upg_bscc";
+ status = "disabled";
+ };
+
+ bscd: i2c@406380 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406380 0x58>;
+ interrupts = <27>;
+ interrupt-names = "upg_bscd";
+ status = "disabled";
+ };
+
+ bsce: i2c@408980 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_aon_irq0_intc>;
+ reg = <0x408980 0x58>;
+ interrupts = <27>;
+ interrupt-names = "upg_bsce";
+ status = "disabled";
+ };
+
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
@@ -246,5 +314,47 @@
interrupts = <76>;
status = "disabled";
};
+
+ sata: sata@181000 {
+ compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
+ reg-names = "ahci", "top-ctrl";
+ reg = <0x181000 0xa9c>, <0x180020 0x1c>;
+ interrupt-parent = <&periph_intc>;
+ interrupts = <40>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ brcm,broken-ncq;
+ brcm,broken-phy;
+ status = "disabled";
+
+ sata0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata_phy0>;
+ };
+
+ sata1: sata-port@1 {
+ reg = <1>;
+ phys = <&sata_phy1>;
+ };
+ };
+
+ sata_phy: sata-phy@1800000 {
+ compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
+ reg = <0x180100 0x0eff>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+
+ sata_phy1: sata-phy@1 {
+ reg = <1>;
+ #phy-cells = <0>;
+ };
+ };
};
};
diff --git a/arch/mips/boot/dts/brcm/bcm7358.dtsi b/arch/mips/boot/dts/brcm/bcm7358.dtsi
index 277a90adc1a7..8e2501694d03 100644
--- a/arch/mips/boot/dts/brcm/bcm7358.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7358.dtsi
@@ -81,14 +81,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
- brcm,int-map-mask = <0x44>;
+ brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
- interrupts = <56>;
+ interrupts = <56>, <54>;
+ interrupt-names = "upg_main", "upg_bsc";
+ };
+
+ upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
+ compatible = "brcm,bcm7120-l2-intc";
+ reg = <0x408b80 0x8>;
+
+ brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
+ brcm,int-fwd-mask = <0>;
+ brcm,irq-can-wake;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&periph_intc>;
+ interrupts = <57>, <55>, <59>;
+ interrupt-names = "upg_main_aon", "upg_bsc_aon",
+ "upg_spi";
};
sun_top_ctrl: syscon@404000 {
@@ -138,6 +156,46 @@
status = "disabled";
};
+ bsca: i2c@406200 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406200 0x58>;
+ interrupts = <24>;
+ interrupt-names = "upg_bsca";
+ status = "disabled";
+ };
+
+ bscb: i2c@406280 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406280 0x58>;
+ interrupts = <25>;
+ interrupt-names = "upg_bscb";
+ status = "disabled";
+ };
+
+ bscc: i2c@406300 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406300 0x58>;
+ interrupts = <26>;
+ interrupt-names = "upg_bscc";
+ status = "disabled";
+ };
+
+ bscd: i2c@408980 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_aon_irq0_intc>;
+ reg = <0x408980 0x58>;
+ interrupts = <27>;
+ interrupt-names = "upg_bscd";
+ status = "disabled";
+ };
+
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7360.dtsi b/arch/mips/boot/dts/brcm/bcm7360.dtsi
index 9e1e571ba346..7e5f76040fb8 100644
--- a/arch/mips/boot/dts/brcm/bcm7360.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7360.dtsi
@@ -81,14 +81,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
- brcm,int-map-mask = <0x44>;
+ brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
- interrupts = <56>;
+ interrupts = <56>, <54>;
+ interrupt-names = "upg_main", "upg_bsc";
+ };
+
+ upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
+ compatible = "brcm,bcm7120-l2-intc";
+ reg = <0x408b80 0x8>;
+
+ brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
+ brcm,int-fwd-mask = <0>;
+ brcm,irq-can-wake;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&periph_intc>;
+ interrupts = <57>, <55>, <59>;
+ interrupt-names = "upg_main_aon", "upg_bsc_aon",
+ "upg_spi";
};
sun_top_ctrl: syscon@404000 {
@@ -138,6 +156,46 @@
status = "disabled";
};
+ bsca: i2c@406200 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406200 0x58>;
+ interrupts = <24>;
+ interrupt-names = "upg_bsca";
+ status = "disabled";
+ };
+
+ bscb: i2c@406280 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406280 0x58>;
+ interrupts = <25>;
+ interrupt-names = "upg_bscb";
+ status = "disabled";
+ };
+
+ bscc: i2c@406300 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406300 0x58>;
+ interrupts = <26>;
+ interrupt-names = "upg_bscc";
+ status = "disabled";
+ };
+
+ bscd: i2c@408980 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_aon_irq0_intc>;
+ reg = <0x408980 0x58>;
+ interrupts = <27>;
+ interrupt-names = "upg_bscd";
+ status = "disabled";
+ };
+
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7362.dtsi b/arch/mips/boot/dts/brcm/bcm7362.dtsi
index 6e65db86fc61..c739ea77acb0 100644
--- a/arch/mips/boot/dts/brcm/bcm7362.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7362.dtsi
@@ -87,14 +87,32 @@
compatible = "brcm,bcm7120-l2-intc";
reg = <0x406600 0x8>;
- brcm,int-map-mask = <0x44>;
+ brcm,int-map-mask = <0x44>, <0x7000000>;
brcm,int-fwd-mask = <0x70000>;
interrupt-controller;
#interrupt-cells = <1>;
interrupt-parent = <&periph_intc>;
- interrupts = <56>;
+ interrupts = <56>, <54>;
+ interrupt-names = "upg_main", "upg_bsc";
+ };
+
+ upg_aon_irq0_intc: upg_aon_irq0_intc@408b80 {
+ compatible = "brcm,bcm7120-l2-intc";
+ reg = <0x408b80 0x8>;
+
+ brcm,int-map-mask = <0x40>, <0x8000000>, <0x100000>;
+ brcm,int-fwd-mask = <0>;
+ brcm,irq-can-wake;
+
+ interrupt-controller;
+ #interrupt-cells = <1>;
+
+ interrupt-parent = <&periph_intc>;
+ interrupts = <57>, <55>, <59>;
+ interrupt-names = "upg_main_aon", "upg_bsc_aon",
+ "upg_spi";
};
sun_top_ctrl: syscon@404000 {
@@ -144,6 +162,36 @@
status = "disabled";
};
+ bsca: i2c@406200 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406200 0x58>;
+ interrupts = <24>;
+ interrupt-names = "upg_bsca";
+ status = "disabled";
+ };
+
+ bscb: i2c@406280 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_irq0_intc>;
+ reg = <0x406280 0x58>;
+ interrupts = <25>;
+ interrupt-names = "upg_bscb";
+ status = "disabled";
+ };
+
+ bscd: i2c@408980 {
+ clock-frequency = <390000>;
+ compatible = "brcm,brcmstb-i2c";
+ interrupt-parent = <&upg_aon_irq0_intc>;
+ reg = <0x408980 0x58>;
+ interrupts = <27>;
+ interrupt-names = "upg_bscd";
+ status = "disabled";
+ };
+
enet0: ethernet@430000 {
phy-mode = "internal";
phy-handle = <&phy1>;
@@ -189,5 +237,47 @@
interrupts = <66>;
status = "disabled";
};
+
+ sata: sata@181000 {
+ compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
+ reg-names = "ahci", "top-ctrl";
+ reg = <0x181000 0xa9c>, <0x180020 0x1c>;
+ interrupt-parent = <&periph_intc>;
+ interrupts = <86>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ brcm,broken-ncq;
+ brcm,broken-phy;
+ status = "disabled";
+
+ sata0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata_phy0>;
+ };
+
+ sata1: sata-port@1 {
+ reg = <1>;
+ phys = <&sata_phy1>;
+ };
+ };
+
+ sata_phy: sata-phy@1800000 {
+ compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
+ reg = <0x180100 0x0eff>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+
+ sata_phy1: sata-phy@1 {
+ reg = <1>;
+ #phy-cells = <0>;
+ };
+ };
};
};
diff --git a/arch/mips/boot/dts/brcm/bcm7425.dtsi b/arch/mips/boot/dts/brcm/bcm7425.dtsi
index 5b660b617ead..e24d41ab4e30 100644
--- a/arch/mips/boot/dts/brcm/bcm7425.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7425.dtsi
@@ -221,5 +221,47 @@
interrupts = <73>;
status = "disabled";
};
+
+ sata: sata@181000 {
+ compatible = "brcm,bcm7425-ahci", "brcm,sata3-ahci";
+ reg-names = "ahci", "top-ctrl";
+ reg = <0x181000 0xa9c>, <0x180020 0x1c>;
+ interrupt-parent = <&periph_intc>;
+ interrupts = <40>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ brcm,broken-ncq;
+ brcm,broken-phy;
+ status = "disabled";
+
+ sata0: sata-port@0 {
+ reg = <0>;
+ phys = <&sata_phy0>;
+ };
+
+ sata1: sata-port@1 {
+ reg = <1>;
+ phys = <&sata_phy1>;
+ };
+ };
+
+ sata_phy: sata-phy@1800000 {
+ compatible = "brcm,bcm7425-sata-phy", "brcm,phy-sata3";
+ reg = <0x180100 0x0eff>;
+ reg-names = "phy";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sata_phy0: sata-phy@0 {
+ reg = <0>;
+ #phy-cells = <0>;
+ };
+
+ sata_phy1: sata-phy@1 {
+ reg = <1>;
+ #phy-cells = <0>;
+ };
+ };
};
};
diff --git a/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts b/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
index 3fe0445b9d37..d3d28816a027 100644
--- a/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
@@ -29,6 +29,26 @@
status = "okay";
};
+&bsca {
+ status = "okay";
+};
+
+&bscb {
+ status = "okay";
+};
+
+&bscc {
+ status = "okay";
+};
+
+&bscd {
+ status = "okay";
+};
+
+&bsce {
+ status = "okay";
+};
+
&enet0 {
status = "okay";
};
@@ -64,3 +84,11 @@
&ohci3 {
status = "okay";
};
+
+&sata {
+ status = "okay";
+};
+
+&sata_phy {
+ status = "okay";
+};
diff --git a/arch/mips/boot/dts/brcm/bcm97358svmb.dts b/arch/mips/boot/dts/brcm/bcm97358svmb.dts
index a8dc01e30313..02ce6b429dc4 100644
--- a/arch/mips/boot/dts/brcm/bcm97358svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97358svmb.dts
@@ -29,6 +29,22 @@
status = "okay";
};
+&bsca {
+ status = "okay";
+};
+
+&bscb {
+ status = "okay";
+};
+
+&bscc {
+ status = "okay";
+};
+
+&bscd {
+ status = "okay";
+};
+
&enet0 {
status = "okay";
};
diff --git a/arch/mips/boot/dts/brcm/bcm97360svmb.dts b/arch/mips/boot/dts/brcm/bcm97360svmb.dts
index eee8b0e32681..d48462e091f1 100644
--- a/arch/mips/boot/dts/brcm/bcm97360svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97360svmb.dts
@@ -29,6 +29,22 @@
status = "okay";
};
+&bsca {
+ status = "okay";
+};
+
+&bscb {
+ status = "okay";
+};
+
+&bscc {
+ status = "okay";
+};
+
+&bscd {
+ status = "okay";
+};
+
&enet0 {
status = "okay";
};
diff --git a/arch/mips/boot/dts/brcm/bcm97362svmb.dts b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
index 739c2ef5663b..3cfcaebe7f79 100644
--- a/arch/mips/boot/dts/brcm/bcm97362svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
@@ -29,6 +29,18 @@
status = "okay";
};
+&bsca {
+ status = "okay";
+};
+
+&bscb {
+ status = "okay";
+};
+
+&bscd {
+ status = "okay";
+};
+
&enet0 {
status = "okay";
};
@@ -40,3 +52,11 @@
&ohci0 {
status = "okay";
};
+
+&sata {
+ status = "okay";
+};
+
+&sata_phy {
+ status = "okay";
+};
diff --git a/arch/mips/boot/dts/mti/malta.dts b/arch/mips/boot/dts/mti/malta.dts
index c678115f5b7f..b18c46637d21 100644
--- a/arch/mips/boot/dts/mti/malta.dts
+++ b/arch/mips/boot/dts/mti/malta.dts
@@ -1,5 +1,9 @@
/dts-v1/;
+/memreserve/ 0x00000000 0x00001000; /* YAMON exception vectors */
+/memreserve/ 0x00001000 0x000ef000; /* YAMON */
+/memreserve/ 0x000f0000 0x00010000; /* PIIX4 ISA memory */
+
/ {
#address-cells = <1>;
#size-cells = <1>;
diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile
new file mode 100644
index 000000000000..913a752a9ff1
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/Makefile
@@ -0,0 +1,9 @@
+dtb-$(CONFIG_XILFPGA_NEXYS4DDR) += nexys4ddr.dtb
+
+obj-y += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
+
+# Force kbuild to make empty built-in.o if necessary
+obj- += dummy.o
+
+always := $(dtb-y)
+clean-files := *.dtb *.dtb.S
diff --git a/arch/mips/boot/dts/xilfpga/microAptiv.dtsi b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
new file mode 100644
index 000000000000..81d518e75785
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
@@ -0,0 +1,21 @@
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "img,xilfpga";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "mips,m14Kc";
+ clocks = <&ext>;
+ reg = <0>;
+ };
+ };
+
+ ext: ext {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ };
+};
diff --git a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
new file mode 100644
index 000000000000..686ebd11386d
--- /dev/null
+++ b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
@@ -0,0 +1,46 @@
+/dts-v1/;
+
+#include "microAptiv.dtsi"
+
+/ {
+ compatible = "digilent,nexys4ddr";
+
+ memory {
+ device_type = "memory";
+ reg = <0x0 0x08000000>;
+ };
+
+ cpuintc: interrupt-controller@0 {
+ #address-cells = <0>;
+ #interrupt-cells = <1>;
+ interrupt-controller;
+ compatible = "mti,cpu-interrupt-controller";
+ };
+
+ axi_gpio: gpio@10600000 {
+ #gpio-cells = <1>;
+ compatible = "xlnx,xps-gpio-1.00.a";
+ gpio-controller;
+ reg = <0x10600000 0x10000>;
+ xlnx,all-inputs = <0x0>;
+ xlnx,dout-default = <0x0>;
+ xlnx,gpio-width = <0x16>;
+ xlnx,interrupt-present = <0x0>;
+ xlnx,is-dual = <0x0>;
+ xlnx,tri-default = <0xffffffff>;
+ } ;
+
+ axi_uart16550: serial@10400000 {
+ compatible = "ns16550a";
+ reg = <0x10400000 0x10000>;
+
+ reg-shift = <2>;
+ reg-offset = <0x1000>;
+
+ clocks = <&ext>;
+ };
+};
+
+&ext {
+ clock-frequency = <50000000>;
+};
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index bd634259eab9..cd7101fb6227 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -1081,6 +1081,7 @@ void __init prom_free_prom_memory(void)
int octeon_prune_device_tree(void);
+extern const char __appended_dtb;
extern const char __dtb_octeon_3xxx_begin;
extern const char __dtb_octeon_68xx_begin;
void __init device_tree_init(void)
@@ -1088,11 +1089,19 @@ void __init device_tree_init(void)
const void *fdt;
bool do_prune;
+#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
+ if (!fdt_check_header(&__appended_dtb)) {
+ fdt = &__appended_dtb;
+ do_prune = false;
+ pr_info("Using appended Device Tree.\n");
+ } else
+#endif
if (octeon_bootinfo->minor_version >= 3 && octeon_bootinfo->fdt_addr) {
fdt = phys_to_virt(octeon_bootinfo->fdt_addr);
if (fdt_check_header(fdt))
panic("Corrupt Device Tree passed to kernel.");
do_prune = false;
+ pr_info("Using passed Device Tree.\n");
} else if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
fdt = &__dtb_octeon_68xx_begin;
do_prune = true;
@@ -1106,8 +1115,6 @@ void __init device_tree_init(void)
if (do_prune) {
octeon_prune_device_tree();
pr_info("Using internal Device Tree.\n");
- } else {
- pr_info("Using passed Device Tree.\n");
}
unflatten_and_copy_device_tree();
}
diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig
index 1cdff6b6327d..b3e7a1b61220 100644
--- a/arch/mips/configs/bigsur_defconfig
+++ b/arch/mips/configs/bigsur_defconfig
@@ -122,20 +122,20 @@ CONFIG_EEPROM_MAX6875=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
CONFIG_BLK_DEV_IDETAPE=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_CMD64X=y
-CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=m
-CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_ST=y
+CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_CHR_DEV_SCH=m
CONFIG_ATA=y
CONFIG_SATA_SIL24=y
+CONFIG_PATA_CMD64X=y
+CONFIG_PATA_IT8213=m
CONFIG_PATA_SIL680=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_MII=y
diff --git a/arch/mips/configs/bmips_be_defconfig b/arch/mips/configs/bmips_be_defconfig
index f5585c8f35ad..24dcb90b0f64 100644
--- a/arch/mips/configs/bmips_be_defconfig
+++ b/arch/mips/configs/bmips_be_defconfig
@@ -8,7 +8,7 @@ CONFIG_MIPS_O32_FP64_SUPPORT=y
# CONFIG_SWAP is not set
CONFIG_NO_HZ=y
CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_GZIP is not set
+CONFIG_RD_GZIP=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
@@ -33,6 +33,7 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_PRINTK_TIME=y
CONFIG_BRCMSTB_GISB_ARB=y
CONFIG_MTD=y
CONFIG_MTD_CFI=y
diff --git a/arch/mips/configs/bmips_stb_defconfig b/arch/mips/configs/bmips_stb_defconfig
index 400a47ec1ef1..4eb5d6e9cf8f 100644
--- a/arch/mips/configs/bmips_stb_defconfig
+++ b/arch/mips/configs/bmips_stb_defconfig
@@ -9,7 +9,7 @@ CONFIG_MIPS_O32_FP64_SUPPORT=y
# CONFIG_SWAP is not set
CONFIG_NO_HZ=y
CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_GZIP is not set
+CONFIG_RD_GZIP=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
@@ -34,6 +34,7 @@ CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_PRINTK_TIME=y
CONFIG_BRCMSTB_GISB_ARB=y
CONFIG_MTD=y
CONFIG_MTD_CFI=y
diff --git a/arch/mips/configs/capcella_defconfig b/arch/mips/configs/capcella_defconfig
index 5135dc0b950a..2924ba34a01b 100644
--- a/arch/mips/configs/capcella_defconfig
+++ b/arch/mips/configs/capcella_defconfig
@@ -31,9 +31,9 @@ CONFIG_NETWORK_SECMARK=y
CONFIG_IP_SCTP=m
CONFIG_FW_LOADER=m
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_IDE_GENERIC=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_PHYLIB=m
CONFIG_MARVELL_PHY=m
diff --git a/arch/mips/configs/e55_defconfig b/arch/mips/configs/e55_defconfig
index 0126e66d60cb..e94d266c4b97 100644
--- a/arch/mips/configs/e55_defconfig
+++ b/arch/mips/configs/e55_defconfig
@@ -14,9 +14,9 @@ CONFIG_MODVERSIONS=y
CONFIG_MODULE_SRCVERSION_ALL=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_BLK_DEV_RAM=y
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_IDE_GENERIC=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_PATA_LEGACY=y
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig
index a75c65da08b4..87435897fd50 100644
--- a/arch/mips/configs/fuloong2e_defconfig
+++ b/arch/mips/configs/fuloong2e_defconfig
@@ -34,7 +34,7 @@ CONFIG_MIPS32_N32=y
CONFIG_PM=y
# CONFIG_SUSPEND is not set
CONFIG_HIBERNATION=y
-CONFIG_PM_STD_PARTITION="/dev/hda3"
+CONFIG_PM_STD_PARTITION="/dev/sda3"
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -114,20 +114,16 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_RAM=m
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDECD=y
-CONFIG_IDE_TASK_IOCTL=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_VIA82CXXX=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_PATA_VIA=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_MACVLAN=m
CONFIG_VETH=m
diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig
index 0179c7fa014f..e620a2c3eba4 100644
--- a/arch/mips/configs/lasat_defconfig
+++ b/arch/mips/configs/lasat_defconfig
@@ -35,11 +35,11 @@ CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_MTD_CFI=y
CONFIG_MTD_CFI_AMDSTD=y
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_CMD64X=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_PATA_CMD64X=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
CONFIG_NET_ETHERNET=y
CONFIG_NET_PCI=y
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 54cc3853d259..004cf52d1b7d 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -108,16 +108,11 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_IDE_TASK_IOCTL=y
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_AMD74XX=y
-CONFIG_SCSI=m
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=m
-CONFIG_SCSI_MULTI_LUN=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_PATA_AMD=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 61a4460d67d3..5afb4840aec7 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -241,14 +241,11 @@ CONFIG_BLK_DEV_NBD=m
CONFIG_BLK_DEV_RAM=y
CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDECD=y
-CONFIG_IDE_GENERIC=y
CONFIG_RAID_ATTRS=m
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
-CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
@@ -265,6 +262,7 @@ CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
CONFIG_ATA=y
CONFIG_ATA_PIIX=y
+CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig
index d41742dd26c8..98f13879bb8f 100644
--- a/arch/mips/configs/malta_kvm_defconfig
+++ b/arch/mips/configs/malta_kvm_defconfig
@@ -248,17 +248,12 @@ CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=m
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
-CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
@@ -274,6 +269,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_IT8213=m
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig
index a7806e83ea0f..3b5d5913f548 100644
--- a/arch/mips/configs/malta_kvm_guest_defconfig
+++ b/arch/mips/configs/malta_kvm_guest_defconfig
@@ -248,17 +248,12 @@ CONFIG_ATA_OVER_ETH=m
CONFIG_VIRTIO_BLK=y
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=m
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
-CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_MULTI_LUN=y
@@ -274,6 +269,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_IT8213=m
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
diff --git a/arch/mips/configs/malta_qemu_32r6_defconfig b/arch/mips/configs/malta_qemu_32r6_defconfig
index 4bce1f8ebe98..7f50dd67aa8d 100644
--- a/arch/mips/configs/malta_qemu_32r6_defconfig
+++ b/arch/mips/configs/malta_qemu_32r6_defconfig
@@ -80,15 +80,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
-CONFIG_IDE=y
-# CONFIG_IDE_PROC_FS is not set
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
diff --git a/arch/mips/configs/maltaaprp_defconfig b/arch/mips/configs/maltaaprp_defconfig
index fb042ce86b4b..a9d433a17fcf 100644
--- a/arch/mips/configs/maltaaprp_defconfig
+++ b/arch/mips/configs/maltaaprp_defconfig
@@ -81,15 +81,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
-CONFIG_IDE=y
-# CONFIG_IDE_PROC_FS is not set
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig
index c83338a39917..2774ef064505 100644
--- a/arch/mips/configs/maltasmvp_eva_defconfig
+++ b/arch/mips/configs/maltasmvp_eva_defconfig
@@ -85,15 +85,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
-CONFIG_IDE=y
-# CONFIG_IDE_PROC_FS is not set
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
diff --git a/arch/mips/configs/maltaup_defconfig b/arch/mips/configs/maltaup_defconfig
index 62344648eb7a..9bbd2218f0bf 100644
--- a/arch/mips/configs/maltaup_defconfig
+++ b/arch/mips/configs/maltaup_defconfig
@@ -80,15 +80,14 @@ CONFIG_NET_CLS_IND=y
CONFIG_DEVTMPFS=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_CRYPTOLOOP=m
-CONFIG_IDE=y
-# CONFIG_IDE_PROC_FS is not set
-# CONFIG_IDEPCI_PCIBUS_ORDER is not set
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_SG=y
# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
CONFIG_NETDEVICES=y
# CONFIG_NET_VENDOR_3COM is not set
# CONFIG_NET_VENDOR_ADAPTEC is not set
diff --git a/arch/mips/configs/maltaup_xpa_defconfig b/arch/mips/configs/maltaup_xpa_defconfig
index c388bff09148..732215732751 100644
--- a/arch/mips/configs/maltaup_xpa_defconfig
+++ b/arch/mips/configs/maltaup_xpa_defconfig
@@ -244,17 +244,12 @@ CONFIG_CDROM_PKTCDVD=m
CONFIG_ATA_OVER_ETH=m
CONFIG_IDE=y
CONFIG_BLK_DEV_IDECD=y
-CONFIG_IDE_GENERIC=y
-CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_PIIX=y
-CONFIG_BLK_DEV_IT8213=m
CONFIG_BLK_DEV_TC86C001=m
CONFIG_RAID_ATTRS=m
-CONFIG_SCSI=m
-CONFIG_BLK_DEV_SD=m
+CONFIG_BLK_DEV_SD=y
CONFIG_CHR_DEV_ST=m
CONFIG_CHR_DEV_OSST=m
-CONFIG_BLK_DEV_SR=m
+CONFIG_BLK_DEV_SR=y
CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=m
CONFIG_SCSI_CONSTANTS=y
@@ -269,6 +264,13 @@ CONFIG_SCSI_AACRAID=m
CONFIG_SCSI_AIC7XXX=m
CONFIG_AIC7XXX_RESET_DELAY_MS=15000
# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
+CONFIG_ATA=y
+CONFIG_ATA_PIIX=y
+CONFIG_PATA_IT8213=m
+CONFIG_PATA_OLDPIIX=y
+CONFIG_PATA_MPIIX=y
+CONFIG_ATA_GENERIC=y
+CONFIG_PATA_LEGACY=y
CONFIG_MD=y
CONFIG_BLK_DEV_MD=m
CONFIG_MD_LINEAR=m
diff --git a/arch/mips/configs/mpc30x_defconfig b/arch/mips/configs/mpc30x_defconfig
index 7a346605c498..a2c045fab6c5 100644
--- a/arch/mips/configs/mpc30x_defconfig
+++ b/arch/mips/configs/mpc30x_defconfig
@@ -27,9 +27,9 @@ CONFIG_INET_XFRM_MODE_BEET=m
CONFIG_NETWORK_SECMARK=y
CONFIG_CONNECTOR=m
CONFIG_ATA_OVER_ETH=m
-# CONFIG_MISC_DEVICES is not set
-CONFIG_IDE=y
-CONFIG_IDE_GENERIC=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_ATA=y
+CONFIG_PATA_LEGACY=y
CONFIG_NETDEVICES=y
# CONFIG_NETDEV_1000 is not set
# CONFIG_NETDEV_10000 is not set
diff --git a/arch/mips/configs/xilfpga_defconfig b/arch/mips/configs/xilfpga_defconfig
new file mode 100644
index 000000000000..ed1dce348320
--- /dev/null
+++ b/arch/mips/configs/xilfpga_defconfig
@@ -0,0 +1,40 @@
+CONFIG_MACH_XILFPGA=y
+# CONFIG_COMPACTION is not set
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLAB=y
+# CONFIG_BLOCK is not set
+# CONFIG_SUSPEND is not set
+# CONFIG_UEVENT_HELPER is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+# CONFIG_INPUT_MOUSEDEV is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_UNIX98_PTYS is not set
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_XILINX=y
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MIPS_PLATFORM_DEVICES is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_PROC_PAGE_MONITOR is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_PANIC_ON_OOPS=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_FTRACE is not set
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=ttyS0,115200"
diff --git a/arch/mips/include/asm/abi.h b/arch/mips/include/asm/abi.h
index 37f84078e78a..940760844e2f 100644
--- a/arch/mips/include/asm/abi.h
+++ b/arch/mips/include/asm/abi.h
@@ -11,19 +11,20 @@
#include <asm/signal.h>
#include <asm/siginfo.h>
+#include <asm/vdso.h>
struct mips_abi {
int (* const setup_frame)(void *sig_return, struct ksignal *ksig,
struct pt_regs *regs, sigset_t *set);
- const unsigned long signal_return_offset;
int (* const setup_rt_frame)(void *sig_return, struct ksignal *ksig,
struct pt_regs *regs, sigset_t *set);
- const unsigned long rt_signal_return_offset;
const unsigned long restart;
unsigned off_sc_fpregs;
unsigned off_sc_fpc_csr;
unsigned off_sc_used_math;
+
+ struct mips_vdso_image *vdso;
};
#endif /* _ASM_ABI_H */
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index f82d3af07931..835b402e4574 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -507,7 +507,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
* @u: ...unless v is equal to u.
*
* Atomically adds @a to @v, so long as it was not @u.
- * Returns the old value of @v.
+ * Returns true iff @v was not @u.
*/
static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
{
diff --git a/arch/mips/include/asm/bcache.h b/arch/mips/include/asm/bcache.h
index 8c34484cea82..a00857b135c3 100644
--- a/arch/mips/include/asm/bcache.h
+++ b/arch/mips/include/asm/bcache.h
@@ -9,6 +9,7 @@
#ifndef _ASM_BCACHE_H
#define _ASM_BCACHE_H
+#include <linux/types.h>
/* Some R4000 / R4400 / R4600 / R5000 machines may have a non-dma-coherent,
chipset implemented caches. On machines with other CPUs the CPU does the
@@ -18,6 +19,9 @@ struct bcache_ops {
void (*bc_disable)(void);
void (*bc_wback_inv)(unsigned long page, unsigned long size);
void (*bc_inv)(unsigned long page, unsigned long size);
+ void (*bc_prefetch_enable)(void);
+ void (*bc_prefetch_disable)(void);
+ bool (*bc_prefetch_is_enabled)(void);
};
extern void indy_sc_init(void);
@@ -46,6 +50,26 @@ static inline void bc_inv(unsigned long page, unsigned long size)
bcops->bc_inv(page, size);
}
+static inline void bc_prefetch_enable(void)
+{
+ if (bcops->bc_prefetch_enable)
+ bcops->bc_prefetch_enable();
+}
+
+static inline void bc_prefetch_disable(void)
+{
+ if (bcops->bc_prefetch_disable)
+ bcops->bc_prefetch_disable();
+}
+
+static inline bool bc_prefetch_is_enabled(void)
+{
+ if (bcops->bc_prefetch_is_enabled)
+ return bcops->bc_prefetch_is_enabled();
+
+ return false;
+}
+
#else /* !defined(CONFIG_BOARD_SCACHE) */
/* Not R4000 / R4400 / R4600 / R5000. */
@@ -54,6 +78,9 @@ static inline void bc_inv(unsigned long page, unsigned long size)
#define bc_disable() do { } while (0)
#define bc_wback_inv(page, size) do { } while (0)
#define bc_inv(page, size) do { } while (0)
+#define bc_prefetch_enable() do { } while (0)
+#define bc_prefetch_disable() do { } while (0)
+#define bc_prefetch_is_enabled() 0
#endif /* !defined(CONFIG_BOARD_SCACHE) */
diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
index bece2064cc8c..c06dbf8ba937 100644
--- a/arch/mips/include/asm/cdmm.h
+++ b/arch/mips/include/asm/cdmm.h
@@ -84,6 +84,17 @@ void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
mips_cdmm_driver_unregister)
+/*
+ * builtin_mips_cdmm_driver() - Helper macro for drivers that don't do anything
+ * special in init and have no exit. This eliminates some boilerplate. Each
+ * driver may only use this macro once, and calling it replaces device_initcall
+ * (or in some cases, the legacy __initcall). This is meant to be a direct
+ * parallel of module_mips_cdmm_driver() above but without the __exit stuff that
+ * is not used for builtin cases.
+ */
+#define builtin_mips_cdmm_driver(__mips_cdmm_driver) \
+ builtin_driver(__mips_cdmm_driver, mips_cdmm_driver_register)
+
/* drivers/tty/mips_ejtag_fdc.c */
#ifdef CONFIG_MIPS_EJTAG_FDC_EARLYCON
diff --git a/arch/mips/include/asm/clocksource.h b/arch/mips/include/asm/clocksource.h
new file mode 100644
index 000000000000..3deb1d0c1a94
--- /dev/null
+++ b/arch/mips/include/asm/clocksource.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_CLOCKSOURCE_H
+#define __ASM_CLOCKSOURCE_H
+
+#include <linux/types.h>
+
+/* VDSO clocksources. */
+#define VDSO_CLOCK_NONE 0 /* No suitable clocksource. */
+#define VDSO_CLOCK_R4K 1 /* Use the coprocessor 0 count. */
+#define VDSO_CLOCK_GIC 2 /* Use the GIC. */
+
+/**
+ * struct arch_clocksource_data - Architecture-specific clocksource information.
+ * @vdso_clock_mode: Method the VDSO should use to access the clocksource.
+ */
+struct arch_clocksource_data {
+ u8 vdso_clock_mode;
+};
+
+#endif /* __ASM_CLOCKSOURCE_H */
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index c4bd54a7f5ce..a9580097cba8 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -130,6 +130,8 @@ typedef union compat_sigval {
compat_uptr_t sival_ptr;
} compat_sigval_t;
+/* Can't use the generic version because si_code and si_errno are swapped */
+
#define SI_PAD_SIZE32 (128/sizeof(int) - 3)
typedef struct compat_siginfo {
@@ -138,57 +140,61 @@ typedef struct compat_siginfo {
int si_errno;
union {
- int _pad[SI_PAD_SIZE32];
+ int _pad[128 / sizeof(int) - 3];
/* kill() */
struct {
compat_pid_t _pid; /* sender's pid */
- __compat_uid_t _uid; /* sender's uid */
+ __compat_uid32_t _uid; /* sender's uid */
} _kill;
+ /* POSIX.1b timers */
+ struct {
+ compat_timer_t _tid; /* timer id */
+ int _overrun; /* overrun count */
+ compat_sigval_t _sigval; /* same as below */
+ } _timer;
+
+ /* POSIX.1b signals */
+ struct {
+ compat_pid_t _pid; /* sender's pid */
+ __compat_uid32_t _uid; /* sender's uid */
+ compat_sigval_t _sigval;
+ } _rt;
+
/* SIGCHLD */
struct {
compat_pid_t _pid; /* which child */
- __compat_uid_t _uid; /* sender's uid */
+ __compat_uid32_t _uid; /* sender's uid */
int _status; /* exit code */
compat_clock_t _utime;
compat_clock_t _stime;
} _sigchld;
- /* IRIX SIGCHLD */
- struct {
- compat_pid_t _pid; /* which child */
- compat_clock_t _utime;
- int _status; /* exit code */
- compat_clock_t _stime;
- } _irix_sigchld;
-
/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
struct {
- s32 _addr; /* faulting insn/memory ref. */
+ compat_uptr_t _addr; /* faulting insn/memory ref. */
+#ifdef __ARCH_SI_TRAPNO
+ int _trapno; /* TRAP # which caused the signal */
+#endif
+ short _addr_lsb; /* LSB of the reported address */
+ struct {
+ compat_uptr_t _lower;
+ compat_uptr_t _upper;
+ } _addr_bnd;
} _sigfault;
- /* SIGPOLL, SIGXFSZ (To do ...) */
+ /* SIGPOLL */
struct {
- int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
+ compat_long_t _band; /* POLL_IN, POLL_OUT, POLL_MSG */
int _fd;
} _sigpoll;
- /* POSIX.1b timers */
- struct {
- timer_t _tid; /* timer id */
- int _overrun; /* overrun count */
- compat_sigval_t _sigval;/* same as below */
- int _sys_private; /* not to be passed to user */
- } _timer;
-
- /* POSIX.1b signals */
struct {
- compat_pid_t _pid; /* sender's pid */
- __compat_uid_t _uid; /* sender's uid */
- compat_sigval_t _sigval;
- } _rt;
-
+ compat_uptr_t _call_addr; /* calling insn */
+ int _syscall; /* triggering system call number */
+ compat_uint_t _arch; /* AUDIT_ARCH_* of syscall */
+ } _sigsys;
} _sifields;
} compat_siginfo_t;
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index fe67f12ac239..d1e04c943f5f 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -131,11 +131,7 @@
#endif
#ifndef cpu_has_rixi
-# ifdef CONFIG_64BIT
-# define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
-# else /* CONFIG_32BIT */
-# define cpu_has_rixi ((cpu_data[0].options & MIPS_CPU_RIXI) && !cpu_has_64bits)
-# endif
+#define cpu_has_rixi (cpu_data[0].options & MIPS_CPU_RIXI)
#endif
#ifndef cpu_has_mmips
diff --git a/arch/mips/include/asm/debug.h b/arch/mips/include/asm/debug.h
new file mode 100644
index 000000000000..254f00deb9d5
--- /dev/null
+++ b/arch/mips/include/asm/debug.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_DEBUG_H__
+#define __MIPS_ASM_DEBUG_H__
+
+#include <linux/dcache.h>
+
+/*
+ * mips_debugfs_dir corresponds to the "mips" directory at the top level
+ * of the DebugFS hierarchy. MIPS-specific DebugFS entires should be
+ * placed beneath this directory.
+ */
+extern struct dentry *mips_debugfs_dir;
+
+#endif /* __MIPS_ASM_DEBUG_H__ */
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index 53b26933b12c..b01a6ff468e0 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -8,6 +8,7 @@
#ifndef _ASM_ELF_H
#define _ASM_ELF_H
+#include <linux/auxvec.h>
#include <linux/fs.h>
#include <uapi/linux/elf.h>
@@ -419,6 +420,12 @@ extern const char *__elf_platform;
#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
#endif
+#define ARCH_DLINFO \
+do { \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, \
+ (unsigned long)current->mm->context.vdso); \
+} while (0)
+
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
diff --git a/arch/mips/include/asm/fw/fw.h b/arch/mips/include/asm/fw/fw.h
index f3e6978aad70..d0ef8b4892bb 100644
--- a/arch/mips/include/asm/fw/fw.h
+++ b/arch/mips/include/asm/fw/fw.h
@@ -10,21 +10,6 @@
#include <asm/bootinfo.h> /* For cleaner code... */
-enum fw_memtypes {
- fw_dontuse,
- fw_code,
- fw_free,
-};
-
-typedef struct {
- unsigned long base; /* Within KSEG0 */
- unsigned int size; /* bytes */
- enum fw_memtypes type; /* fw_memtypes */
-} fw_memblock_t;
-
-/* Maximum number of memory block descriptors. */
-#define FW_MAX_MEMBLOCKS 32
-
extern int fw_argc;
extern int *_fw_argv;
extern int *_fw_envp;
@@ -38,7 +23,6 @@ extern int *_fw_envp;
extern void fw_init_cmdline(void);
extern char *fw_getcmdline(void);
-extern fw_memblock_t *fw_getmdesc(int);
extern void fw_meminit(void);
extern char *fw_getenv(char *name);
extern unsigned long fw_getenvl(char *name);
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
index 1461c10c1c4c..71e4096a2145 100644
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx.h
@@ -48,11 +48,6 @@ extern enum bcm47xx_bus_type bcm47xx_bus_type;
void bcm47xx_fill_sprom(struct ssb_sprom *sprom, const char *prefix,
bool fallback);
-#ifdef CONFIG_BCM47XX_SSB
-void bcm47xx_fill_ssb_boardinfo(struct ssb_boardinfo *boardinfo,
- const char *prefix);
-#endif
-
void bcm47xx_set_system_type(u16 chip_id);
#endif /* __ASM_BCM47XX_H */
diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
index 133336b493b6..dd6005b75e0c 100644
--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
@@ -35,6 +35,17 @@
#define SOC_ID_VRX268_2 0x00C /* v1.2 */
#define SOC_ID_GRX288_2 0x00D /* v1.2 */
#define SOC_ID_GRX282_2 0x00E /* v1.2 */
+#define SOC_ID_VRX220 0x000
+
+#define SOC_ID_ARX362 0x004
+#define SOC_ID_ARX368 0x005
+#define SOC_ID_ARX382 0x007
+#define SOC_ID_ARX388 0x008
+#define SOC_ID_URX388 0x009
+#define SOC_ID_GRX383 0x010
+#define SOC_ID_GRX369 0x011
+#define SOC_ID_GRX387 0x00F
+#define SOC_ID_GRX389 0x012
/* SoC Types */
#define SOC_TYPE_DANUBE 0x01
@@ -43,6 +54,9 @@
#define SOC_TYPE_VR9 0x04 /* v1.1 */
#define SOC_TYPE_VR9_2 0x05 /* v1.2 */
#define SOC_TYPE_AMAZON_SE 0x06
+#define SOC_TYPE_AR10 0x07
+#define SOC_TYPE_GRX390 0x08
+#define SOC_TYPE_VRX220 0x09
/* BOOT_SEL - find what boot media we have */
#define BS_EXT_ROM 0x0
diff --git a/arch/mips/include/asm/mach-malta/malta-dtshim.h b/arch/mips/include/asm/mach-malta/malta-dtshim.h
new file mode 100644
index 000000000000..cfd777663c64
--- /dev/null
+++ b/arch/mips/include/asm/mach-malta/malta-dtshim.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_MALTA_DTSHIM_H__
+#define __MIPS_MALTA_DTSHIM_H__
+
+#include <linux/init.h>
+
+#ifdef CONFIG_MIPS_MALTA
+
+extern void __init *malta_dt_shim(void *fdt);
+
+#else /* !CONFIG_MIPS_MALTA */
+
+static inline void *malta_dt_shim(void *fdt)
+{
+ return fdt;
+}
+
+#endif /* !CONFIG_MIPS_MALTA */
+
+#endif /* __MIPS_MALTA_DTSHIM_H__ */
diff --git a/arch/mips/include/asm/mach-ralink/mt7620.h b/arch/mips/include/asm/mach-ralink/mt7620.h
index 1976fb815fd1..455d406e8ddf 100644
--- a/arch/mips/include/asm/mach-ralink/mt7620.h
+++ b/arch/mips/include/asm/mach-ralink/mt7620.h
@@ -13,17 +13,11 @@
#ifndef _MT7620_REGS_H_
#define _MT7620_REGS_H_
-enum mt762x_soc_type {
- MT762X_SOC_UNKNOWN = 0,
- MT762X_SOC_MT7620A,
- MT762X_SOC_MT7620N,
- MT762X_SOC_MT7628AN,
-};
-
#define MT7620_SYSC_BASE 0x10000000
#define SYSC_REG_CHIP_NAME0 0x00
#define SYSC_REG_CHIP_NAME1 0x04
+#define SYSC_REG_EFUSE_CFG 0x08
#define SYSC_REG_CHIP_REV 0x0c
#define SYSC_REG_SYSTEM_CONFIG0 0x10
#define SYSC_REG_SYSTEM_CONFIG1 0x14
diff --git a/arch/mips/include/asm/mach-ralink/ralink_regs.h b/arch/mips/include/asm/mach-ralink/ralink_regs.h
index bd93014490df..4c9fba68c8b2 100644
--- a/arch/mips/include/asm/mach-ralink/ralink_regs.h
+++ b/arch/mips/include/asm/mach-ralink/ralink_regs.h
@@ -13,6 +13,23 @@
#ifndef _RALINK_REGS_H_
#define _RALINK_REGS_H_
+enum ralink_soc_type {
+ RALINK_UNKNOWN = 0,
+ RT2880_SOC,
+ RT3883_SOC,
+ RT305X_SOC_RT3050,
+ RT305X_SOC_RT3052,
+ RT305X_SOC_RT3350,
+ RT305X_SOC_RT3352,
+ RT305X_SOC_RT5350,
+ MT762X_SOC_MT7620A,
+ MT762X_SOC_MT7620N,
+ MT762X_SOC_MT7621AT,
+ MT762X_SOC_MT7628AN,
+ MT762X_SOC_MT7688,
+};
+extern enum ralink_soc_type ralink_soc;
+
extern __iomem void *rt_sysc_membase;
extern __iomem void *rt_memc_membase;
diff --git a/arch/mips/include/asm/mach-ralink/rt305x.h b/arch/mips/include/asm/mach-ralink/rt305x.h
index 96f731bac79a..2eea79331a14 100644
--- a/arch/mips/include/asm/mach-ralink/rt305x.h
+++ b/arch/mips/include/asm/mach-ralink/rt305x.h
@@ -13,25 +13,16 @@
#ifndef _RT305X_REGS_H_
#define _RT305X_REGS_H_
-enum rt305x_soc_type {
- RT305X_SOC_UNKNOWN = 0,
- RT305X_SOC_RT3050,
- RT305X_SOC_RT3052,
- RT305X_SOC_RT3350,
- RT305X_SOC_RT3352,
- RT305X_SOC_RT5350,
-};
-
-extern enum rt305x_soc_type rt305x_soc;
+extern enum ralink_soc_type ralink_soc;
static inline int soc_is_rt3050(void)
{
- return rt305x_soc == RT305X_SOC_RT3050;
+ return ralink_soc == RT305X_SOC_RT3050;
}
static inline int soc_is_rt3052(void)
{
- return rt305x_soc == RT305X_SOC_RT3052;
+ return ralink_soc == RT305X_SOC_RT3052;
}
static inline int soc_is_rt305x(void)
@@ -41,17 +32,17 @@ static inline int soc_is_rt305x(void)
static inline int soc_is_rt3350(void)
{
- return rt305x_soc == RT305X_SOC_RT3350;
+ return ralink_soc == RT305X_SOC_RT3350;
}
static inline int soc_is_rt3352(void)
{
- return rt305x_soc == RT305X_SOC_RT3352;
+ return ralink_soc == RT305X_SOC_RT3352;
}
static inline int soc_is_rt5350(void)
{
- return rt305x_soc == RT305X_SOC_RT5350;
+ return ralink_soc == RT305X_SOC_RT5350;
}
#define RT305X_SYSC_BASE 0x10000000
diff --git a/arch/mips/include/asm/mach-xilfpga/irq.h b/arch/mips/include/asm/mach-xilfpga/irq.h
new file mode 100644
index 000000000000..0132a5b91f57
--- /dev/null
+++ b/arch/mips/include/asm/mach-xilfpga/irq.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_MACH_XILFPGA_IRQ_H__
+#define __MIPS_ASM_MACH_XILFPGA_IRQ_H__
+
+#define NR_IRQS 32
+
+#include_next <irq.h>
+
+#endif /* __MIPS_ASM_MACH_XILFPGA_IRQ_H__ */
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index 1f1927ab4269..6516e9da5133 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -11,6 +11,7 @@
#ifndef __MIPS_ASM_MIPS_CM_H__
#define __MIPS_ASM_MIPS_CM_H__
+#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/io.h>
#include <linux/types.h>
@@ -36,12 +37,12 @@ extern phys_addr_t __mips_cm_phys_base(void);
/*
* mips_cm_is64 - determine CM register width
*
- * The CM register width is processor and CM specific. A 64-bit processor
- * usually has a 64-bit CM and a 32-bit one has a 32-bit CM but a 64-bit
- * processor could come with a 32-bit CM. Moreover, accesses on 64-bit CMs
- * can be done either using regular 64-bit load/store instructions, or 32-bit
- * load/store instruction on 32-bit register pairs. We opt for using 64-bit
- * accesses on 64-bit CMs and kernels and 32-bit in any other case.
+ * The CM register width is determined by the version of the CM, with CM3
+ * introducing 64 bit GCRs and all prior CM versions having 32 bit GCRs.
+ * However we may run a kernel built for MIPS32 on a system with 64 bit GCRs,
+ * or vice-versa. This variable indicates the width of the memory accesses
+ * that the kernel will perform to GCRs, which may differ from the actual
+ * width of the GCRs.
*
* It's set to 0 for 32-bit accesses and 1 for 64-bit accesses.
*/
@@ -125,7 +126,17 @@ static inline u32 read32_gcr_##name(void) \
\
static inline u64 read64_gcr_##name(void) \
{ \
- return __raw_readq(addr_gcr_##name()); \
+ void __iomem *addr = addr_gcr_##name(); \
+ u64 ret; \
+ \
+ if (mips_cm_is64) { \
+ ret = __raw_readq(addr); \
+ } else { \
+ ret = __raw_readl(addr); \
+ ret |= (u64)__raw_readl(addr + 0x4) << 32; \
+ } \
+ \
+ return ret; \
} \
\
static inline unsigned long read_gcr_##name(void) \
@@ -195,6 +206,8 @@ BUILD_CM_R_(gic_status, MIPS_CM_GCB_OFS + 0xd0)
BUILD_CM_R_(cpc_status, MIPS_CM_GCB_OFS + 0xf0)
BUILD_CM_RW(l2_config, MIPS_CM_GCB_OFS + 0x130)
BUILD_CM_RW(sys_config2, MIPS_CM_GCB_OFS + 0x150)
+BUILD_CM_RW(l2_pft_control, MIPS_CM_GCB_OFS + 0x300)
+BUILD_CM_RW(l2_pft_control_b, MIPS_CM_GCB_OFS + 0x308)
/* Core Local & Core Other register accessor functions */
BUILD_CM_Cx_RW(reset_release, 0x00)
@@ -245,11 +258,14 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
((minor) << CM_GCR_REV_MINOR_SHF))
#define CM_REV_CM2 CM_ENCODE_REV(6, 0)
+#define CM_REV_CM2_5 CM_ENCODE_REV(7, 0)
#define CM_REV_CM3 CM_ENCODE_REV(8, 0)
/* GCR_ERROR_CAUSE register fields */
#define CM_GCR_ERROR_CAUSE_ERRTYPE_SHF 27
#define CM_GCR_ERROR_CAUSE_ERRTYPE_MSK (_ULCAST_(0x1f) << 27)
+#define CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF 58
+#define CM3_GCR_ERROR_CAUSE_ERRTYPE_MSK GENMASK_ULL(63, 58)
#define CM_GCR_ERROR_CAUSE_ERRINFO_SHF 0
#define CM_GCR_ERROR_CAUSE_ERRINGO_MSK (_ULCAST_(0x7ffffff) << 0)
@@ -321,6 +337,20 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_SYS_CONFIG2_MAXVPW_SHF 0
#define CM_GCR_SYS_CONFIG2_MAXVPW_MSK (_ULCAST_(0xf) << 0)
+/* GCR_L2_PFT_CONTROL register fields */
+#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_SHF 12
+#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK (_ULCAST_(0xfffff) << 12)
+#define CM_GCR_L2_PFT_CONTROL_PFTEN_SHF 8
+#define CM_GCR_L2_PFT_CONTROL_PFTEN_MSK (_ULCAST_(0x1) << 8)
+#define CM_GCR_L2_PFT_CONTROL_NPFT_SHF 0
+#define CM_GCR_L2_PFT_CONTROL_NPFT_MSK (_ULCAST_(0xff) << 0)
+
+/* GCR_L2_PFT_CONTROL_B register fields */
+#define CM_GCR_L2_PFT_CONTROL_B_CEN_SHF 8
+#define CM_GCR_L2_PFT_CONTROL_B_CEN_MSK (_ULCAST_(0x1) << 8)
+#define CM_GCR_L2_PFT_CONTROL_B_PORTID_SHF 0
+#define CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK (_ULCAST_(0xff) << 0)
+
/* GCR_Cx_COHERENCE register fields */
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_SHF 0
#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK (_ULCAST_(0xff) << 0)
@@ -329,11 +359,15 @@ BUILD_CM_Cx_R_(tcid_8_priority, 0x80)
#define CM_GCR_Cx_CONFIG_IOCUTYPE_SHF 10
#define CM_GCR_Cx_CONFIG_IOCUTYPE_MSK (_ULCAST_(0x3) << 10)
#define CM_GCR_Cx_CONFIG_PVPE_SHF 0
-#define CM_GCR_Cx_CONFIG_PVPE_MSK (_ULCAST_(0x1ff) << 0)
+#define CM_GCR_Cx_CONFIG_PVPE_MSK (_ULCAST_(0x3ff) << 0)
/* GCR_Cx_OTHER register fields */
#define CM_GCR_Cx_OTHER_CORENUM_SHF 16
#define CM_GCR_Cx_OTHER_CORENUM_MSK (_ULCAST_(0xffff) << 16)
+#define CM3_GCR_Cx_OTHER_CORE_SHF 8
+#define CM3_GCR_Cx_OTHER_CORE_MSK (_ULCAST_(0x3f) << 8)
+#define CM3_GCR_Cx_OTHER_VP_SHF 0
+#define CM3_GCR_Cx_OTHER_VP_MSK (_ULCAST_(0x7) << 0)
/* GCR_Cx_RESET_BASE register fields */
#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_SHF 12
@@ -444,4 +478,32 @@ static inline unsigned int mips_cm_vp_id(unsigned int cpu)
return (core * mips_cm_max_vp_width()) + vp;
}
+#ifdef CONFIG_MIPS_CM
+
+/**
+ * mips_cm_lock_other - lock access to another core
+ * @core: the other core to be accessed
+ * @vp: the VP within the other core to be accessed
+ *
+ * Call before operating upon a core via the 'other' register region in
+ * order to prevent the region being moved during access. Must be followed
+ * by a call to mips_cm_unlock_other.
+ */
+extern void mips_cm_lock_other(unsigned int core, unsigned int vp);
+
+/**
+ * mips_cm_unlock_other - unlock access to another core
+ *
+ * Call after operating upon another core via the 'other' register region.
+ * Must be called after mips_cm_lock_other.
+ */
+extern void mips_cm_unlock_other(void);
+
+#else /* !CONFIG_MIPS_CM */
+
+static inline void mips_cm_lock_other(unsigned int core) { }
+static inline void mips_cm_unlock_other(void) { }
+
+#endif /* !CONFIG_MIPS_CM */
+
#endif /* __MIPS_ASM_MIPS_CM_H__ */
diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h
index f386f32702f1..e09035239e53 100644
--- a/arch/mips/include/asm/mips-cpc.h
+++ b/arch/mips/include/asm/mips-cpc.h
@@ -149,7 +149,8 @@ BUILD_CPC_Cx_RW(other, 0x10)
* core: the other core to be accessed
*
* Call before operating upon a core via the 'other' register region in
- * order to prevent the region being moved during access. Must be followed
+ * order to prevent the region being moved during access. Must be called
+ * within the bounds of a mips_cm_{lock,unlock}_other pair, and followed
* by a call to mips_cpc_unlock_other.
*/
extern void mips_cpc_lock_other(unsigned int core);
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index c64781cf649f..e43aca183c99 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -50,7 +50,9 @@
#define CP0_PAGEMASK $5
#define CP0_WIRED $6
#define CP0_INFO $7
+#define CP0_HWRENA $7, 0
#define CP0_BADVADDR $8
+#define CP0_BADINSTR $8, 1
#define CP0_COUNT $9
#define CP0_ENTRYHI $10
#define CP0_COMPARE $11
@@ -58,7 +60,11 @@
#define CP0_CAUSE $13
#define CP0_EPC $14
#define CP0_PRID $15
+#define CP0_EBASE $15, 1
+#define CP0_CMGCRBASE $15, 3
#define CP0_CONFIG $16
+#define CP0_CONFIG3 $16, 3
+#define CP0_CONFIG5 $16, 5
#define CP0_LLADDR $17
#define CP0_WATCHLO $18
#define CP0_WATCHHI $19
@@ -126,15 +132,9 @@
#define R3K_ENTRYLO_N (_ULCAST_(1) << 11)
/* MIPS32/64 EntryLo bit definitions */
-#ifdef CONFIG_64BIT
-/* as read by dmfc0 */
-#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 62)
-#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 63)
-#else
-/* as read by mfc0 */
-#define MIPS_ENTRYLO_XI (_ULCAST_(1) << 30)
-#define MIPS_ENTRYLO_RI (_ULCAST_(1) << 31)
-#endif
+#define MIPS_ENTRYLO_PFN_SHIFT 6
+#define MIPS_ENTRYLO_XI (_ULCAST_(1) << (BITS_PER_LONG - 2))
+#define MIPS_ENTRYLO_RI (_ULCAST_(1) << (BITS_PER_LONG - 1))
/*
* Values for PageMask register
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h
index 89dd7fed1a57..ad1fccdb8d13 100644
--- a/arch/mips/include/asm/page.h
+++ b/arch/mips/include/asm/page.h
@@ -33,7 +33,7 @@
#define PAGE_SHIFT 16
#endif
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1))
+#define PAGE_MASK (~(PAGE_SIZE - 1))
/*
* This is used for calculating the real page sizes
diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index 59ee6dcf6eed..3f832c3dd8f5 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -36,12 +36,6 @@ extern unsigned int vced_count, vcei_count;
*/
#define HAVE_ARCH_PICK_MMAP_LAYOUT 1
-/*
- * A special page (the vdso) is mapped into all processes at the very
- * top of the virtual memory space.
- */
-#define SPECIAL_PAGES_SIZE PAGE_SIZE
-
#ifdef CONFIG_32BIT
#ifdef CONFIG_KVM_GUEST
/* User space process size is limited to 1GB in KVM Guest Mode */
@@ -80,7 +74,7 @@ extern unsigned int vced_count, vcei_count;
#endif
-#define STACK_TOP ((TASK_SIZE & PAGE_MASK) - SPECIAL_PAGES_SIZE)
+#define STACK_TOP (TASK_SIZE & PAGE_MASK)
/*
* This decides where the kernel will search for a free chunk of vm
diff --git a/arch/mips/include/asm/vdso.h b/arch/mips/include/asm/vdso.h
index cca56aa40ff4..8f4ca5dd992b 100644
--- a/arch/mips/include/asm/vdso.h
+++ b/arch/mips/include/asm/vdso.h
@@ -1,29 +1,136 @@
/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
*
- * Copyright (C) 2009 Cavium Networks
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
*/
#ifndef __ASM_VDSO_H
#define __ASM_VDSO_H
-#include <linux/types.h>
+#include <linux/mm_types.h>
+#include <asm/barrier.h>
-#ifdef CONFIG_32BIT
-struct mips_vdso {
- u32 signal_trampoline[2];
- u32 rt_signal_trampoline[2];
+/**
+ * struct mips_vdso_image - Details of a VDSO image.
+ * @data: Pointer to VDSO image data (page-aligned).
+ * @size: Size of the VDSO image data (page-aligned).
+ * @off_sigreturn: Offset of the sigreturn() trampoline.
+ * @off_rt_sigreturn: Offset of the rt_sigreturn() trampoline.
+ * @mapping: Special mapping structure.
+ *
+ * This structure contains details of a VDSO image, including the image data
+ * and offsets of certain symbols required by the kernel. It is generated as
+ * part of the VDSO build process, aside from the mapping page array, which is
+ * populated at runtime.
+ */
+struct mips_vdso_image {
+ void *data;
+ unsigned long size;
+
+ unsigned long off_sigreturn;
+ unsigned long off_rt_sigreturn;
+
+ struct vm_special_mapping mapping;
};
-#else /* !CONFIG_32BIT */
-struct mips_vdso {
- u32 o32_signal_trampoline[2];
- u32 o32_rt_signal_trampoline[2];
- u32 rt_signal_trampoline[2];
- u32 n32_rt_signal_trampoline[2];
+
+/*
+ * The following structures are auto-generated as part of the build for each
+ * ABI by genvdso, see arch/mips/vdso/Makefile.
+ */
+
+extern struct mips_vdso_image vdso_image;
+
+#ifdef CONFIG_MIPS32_O32
+extern struct mips_vdso_image vdso_image_o32;
+#endif
+
+#ifdef CONFIG_MIPS32_N32
+extern struct mips_vdso_image vdso_image_n32;
+#endif
+
+/**
+ * union mips_vdso_data - Data provided by the kernel for the VDSO.
+ * @xtime_sec: Current real time (seconds part).
+ * @xtime_nsec: Current real time (nanoseconds part, shifted).
+ * @wall_to_mono_sec: Wall-to-monotonic offset (seconds part).
+ * @wall_to_mono_nsec: Wall-to-monotonic offset (nanoseconds part).
+ * @seq_count: Counter to synchronise updates (odd = updating).
+ * @cs_shift: Clocksource shift value.
+ * @clock_mode: Clocksource to use for time functions.
+ * @cs_mult: Clocksource multiplier value.
+ * @cs_cycle_last: Clock cycle value at last update.
+ * @cs_mask: Clocksource mask value.
+ * @tz_minuteswest: Minutes west of Greenwich (from timezone).
+ * @tz_dsttime: Type of DST correction (from timezone).
+ *
+ * This structure contains data needed by functions within the VDSO. It is
+ * populated by the kernel and mapped read-only into user memory. The time
+ * fields are mirrors of internal data from the timekeeping infrastructure.
+ *
+ * Note: Care should be taken when modifying as the layout must remain the same
+ * for both 64- and 32-bit (for 32-bit userland on 64-bit kernel).
+ */
+union mips_vdso_data {
+ struct {
+ u64 xtime_sec;
+ u64 xtime_nsec;
+ u32 wall_to_mono_sec;
+ u32 wall_to_mono_nsec;
+ u32 seq_count;
+ u32 cs_shift;
+ u8 clock_mode;
+ u32 cs_mult;
+ u64 cs_cycle_last;
+ u64 cs_mask;
+ s32 tz_minuteswest;
+ s32 tz_dsttime;
+ };
+
+ u8 page[PAGE_SIZE];
};
-#endif /* CONFIG_32BIT */
+
+static inline u32 vdso_data_read_begin(const union mips_vdso_data *data)
+{
+ u32 seq;
+
+ while (true) {
+ seq = ACCESS_ONCE(data->seq_count);
+ if (likely(!(seq & 1))) {
+ /* Paired with smp_wmb() in vdso_data_write_*(). */
+ smp_rmb();
+ return seq;
+ }
+
+ cpu_relax();
+ }
+}
+
+static inline bool vdso_data_read_retry(const union mips_vdso_data *data,
+ u32 start_seq)
+{
+ /* Paired with smp_wmb() in vdso_data_write_*(). */
+ smp_rmb();
+ return unlikely(data->seq_count != start_seq);
+}
+
+static inline void vdso_data_write_begin(union mips_vdso_data *data)
+{
+ ++data->seq_count;
+
+ /* Ensure sequence update is written before other data page values. */
+ smp_wmb();
+}
+
+static inline void vdso_data_write_end(union mips_vdso_data *data)
+{
+ /* Ensure data values are written before updating sequence again. */
+ smp_wmb();
+ ++data->seq_count;
+}
#endif /* __ASM_VDSO_H */
diff --git a/arch/mips/include/uapi/asm/Kbuild b/arch/mips/include/uapi/asm/Kbuild
index 96fe7395ed8d..f2cf41461146 100644
--- a/arch/mips/include/uapi/asm/Kbuild
+++ b/arch/mips/include/uapi/asm/Kbuild
@@ -1,9 +1,9 @@
# UAPI Header export list
include include/uapi/asm-generic/Kbuild.asm
-generic-y += auxvec.h
generic-y += ipcbuf.h
+header-y += auxvec.h
header-y += bitfield.h
header-y += bitsperlong.h
header-y += break.h
diff --git a/arch/mips/include/uapi/asm/auxvec.h b/arch/mips/include/uapi/asm/auxvec.h
new file mode 100644
index 000000000000..c9c7195272c4
--- /dev/null
+++ b/arch/mips/include/uapi/asm/auxvec.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __ASM_AUXVEC_H
+#define __ASM_AUXVEC_H
+
+/* Location of VDSO image. */
+#define AT_SYSINFO_EHDR 33
+
+#endif /* __ASM_AUXVEC_H */
diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
index 459cb017306c..934b15b5b575 100644
--- a/arch/mips/jz4740/board-qi_lb60.c
+++ b/arch/mips/jz4740/board-qi_lb60.c
@@ -25,6 +25,7 @@
#include <linux/power_supply.h>
#include <linux/power/jz4740-battery.h>
#include <linux/power/gpio-charger.h>
+#include <linux/pwm.h>
#include <asm/mach-jz4740/gpio.h>
#include <asm/mach-jz4740/jz4740_fb.h>
@@ -34,8 +35,6 @@
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
-#include <linux/leds_pwm.h>
-
#include <asm/mach-jz4740/platform.h>
#include "clock.h"
@@ -399,13 +398,15 @@ static struct platform_device avt2_usb_regulator_device = {
}
};
+static struct pwm_lookup qi_lb60_pwm_lookup[] = {
+ PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
+ PWM_POLARITY_NORMAL),
+};
+
/* beeper */
static struct platform_device qi_lb60_pwm_beeper = {
.name = "pwm-beeper",
.id = -1,
- .dev = {
- .platform_data = (void *)4,
- },
};
/* charger */
@@ -491,6 +492,8 @@ static int __init qi_lb60_init_platform_devices(void)
platform_device_register(&jz4740_usb_ohci_device);
}
+ pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
+
return platform_add_devices(jz_platform_devices,
ARRAY_SIZE(jz_platform_devices));
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index d982be1ea1c3..68e2b7db9348 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_MIPS_MT_FPAFF) += mips-mt-fpaff.o
obj-$(CONFIG_MIPS_MT_SMP) += smp-mt.o
obj-$(CONFIG_MIPS_CMP) += smp-cmp.o
obj-$(CONFIG_MIPS_CPS) += smp-cps.o cps-vec.o
+obj-$(CONFIG_MIPS_CPS_NS16550) += cps-vec-ns16550.o
obj-$(CONFIG_MIPS_GIC_IPI) += smp-gic.o
obj-$(CONFIG_MIPS_SPRAM) += spram.o
diff --git a/arch/mips/kernel/cps-vec-ns16550.S b/arch/mips/kernel/cps-vec-ns16550.S
new file mode 100644
index 000000000000..6d246ad05638
--- /dev/null
+++ b/arch/mips/kernel/cps-vec-ns16550.S
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/addrspace.h>
+#include <asm/asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <linux/serial_reg.h>
+
+#define UART_TX_OFS (UART_TX << CONFIG_MIPS_CPS_NS16550_SHIFT)
+#define UART_LSR_OFS (UART_LSR << CONFIG_MIPS_CPS_NS16550_SHIFT)
+
+/**
+ * _mips_cps_putc() - write a character to the UART
+ * @a0: ASCII character to write
+ * @t9: UART base address
+ */
+LEAF(_mips_cps_putc)
+1: lw t0, UART_LSR_OFS(t9)
+ andi t0, t0, UART_LSR_TEMT
+ beqz t0, 1b
+ sb a0, UART_TX_OFS(t9)
+ jr ra
+ END(_mips_cps_putc)
+
+/**
+ * _mips_cps_puts() - write a string to the UART
+ * @a0: pointer to NULL-terminated ASCII string
+ * @t9: UART base address
+ *
+ * Write a null-terminated ASCII string to the UART.
+ */
+NESTED(_mips_cps_puts, 0, ra)
+ move s7, ra
+ move s6, a0
+
+1: lb a0, 0(s6)
+ beqz a0, 2f
+ jal _mips_cps_putc
+ PTR_ADDIU s6, s6, 1
+ b 1b
+
+2: jr s7
+ END(_mips_cps_puts)
+
+/**
+ * _mips_cps_putx4 - write a 4b hex value to the UART
+ * @a0: the 4b value to write to the UART
+ * @t9: UART base address
+ *
+ * Write a single hexadecimal character to the UART.
+ */
+NESTED(_mips_cps_putx4, 0, ra)
+ andi a0, a0, 0xf
+ li t0, '0'
+ blt a0, 10, 1f
+ li t0, 'a'
+ addiu a0, a0, -10
+1: addu a0, a0, t0
+ b _mips_cps_putc
+ END(_mips_cps_putx4)
+
+/**
+ * _mips_cps_putx8 - write an 8b hex value to the UART
+ * @a0: the 8b value to write to the UART
+ * @t9: UART base address
+ *
+ * Write an 8 bit value (ie. 2 hexadecimal characters) to the UART.
+ */
+NESTED(_mips_cps_putx8, 0, ra)
+ move s3, ra
+ move s2, a0
+ srl a0, a0, 4
+ jal _mips_cps_putx4
+ move a0, s2
+ move ra, s3
+ b _mips_cps_putx4
+ END(_mips_cps_putx8)
+
+/**
+ * _mips_cps_putx16 - write a 16b hex value to the UART
+ * @a0: the 16b value to write to the UART
+ * @t9: UART base address
+ *
+ * Write a 16 bit value (ie. 4 hexadecimal characters) to the UART.
+ */
+NESTED(_mips_cps_putx16, 0, ra)
+ move s5, ra
+ move s4, a0
+ srl a0, a0, 8
+ jal _mips_cps_putx8
+ move a0, s4
+ move ra, s5
+ b _mips_cps_putx8
+ END(_mips_cps_putx16)
+
+/**
+ * _mips_cps_putx32 - write a 32b hex value to the UART
+ * @a0: the 32b value to write to the UART
+ * @t9: UART base address
+ *
+ * Write a 32 bit value (ie. 8 hexadecimal characters) to the UART.
+ */
+NESTED(_mips_cps_putx32, 0, ra)
+ move s7, ra
+ move s6, a0
+ srl a0, a0, 16
+ jal _mips_cps_putx16
+ move a0, s6
+ move ra, s7
+ b _mips_cps_putx16
+ END(_mips_cps_putx32)
+
+#ifdef CONFIG_64BIT
+
+/**
+ * _mips_cps_putx64 - write a 64b hex value to the UART
+ * @a0: the 64b value to write to the UART
+ * @t9: UART base address
+ *
+ * Write a 64 bit value (ie. 16 hexadecimal characters) to the UART.
+ */
+NESTED(_mips_cps_putx64, 0, ra)
+ move sp, ra
+ move s8, a0
+ dsrl32 a0, a0, 0
+ jal _mips_cps_putx32
+ move a0, s8
+ move ra, sp
+ b _mips_cps_putx32
+ END(_mips_cps_putx64)
+
+#define _mips_cps_putxlong _mips_cps_putx64
+
+#else /* !CONFIG_64BIT */
+
+#define _mips_cps_putxlong _mips_cps_putx32
+
+#endif /* !CONFIG_64BIT */
+
+/**
+ * mips_cps_bev_dump() - dump relevant exception state to UART
+ * @a0: pointer to NULL-terminated ASCII string naming the exception
+ *
+ * Write information that may be useful in debugging an exception to the
+ * UART configured by CONFIG_MIPS_CPS_NS16550_*. As this BEV exception
+ * will only be run if something goes horribly wrong very early during
+ * the bringup of a core and it is very likely to be unsafe to perform
+ * memory accesses at that point (cache state indeterminate, EVA may not
+ * be configured, coherence may be disabled) let alone have a stack,
+ * this is all written in assembly using only registers & unmapped
+ * uncached access to the UART registers.
+ */
+LEAF(mips_cps_bev_dump)
+ move s0, ra
+ move s1, a0
+
+ li t9, CKSEG1ADDR(CONFIG_MIPS_CPS_NS16550_BASE)
+
+ PTR_LA a0, str_newline
+ jal _mips_cps_puts
+ PTR_LA a0, str_bev
+ jal _mips_cps_puts
+ move a0, s1
+ jal _mips_cps_puts
+ PTR_LA a0, str_newline
+ jal _mips_cps_puts
+ PTR_LA a0, str_newline
+ jal _mips_cps_puts
+
+#define DUMP_COP0_REG(reg, name, sz, _mfc0) \
+ PTR_LA a0, 8f; \
+ jal _mips_cps_puts; \
+ _mfc0 a0, reg; \
+ jal _mips_cps_putx##sz; \
+ PTR_LA a0, str_newline; \
+ jal _mips_cps_puts; \
+ TEXT(name)
+
+ DUMP_COP0_REG(CP0_CAUSE, "Cause: 0x", 32, mfc0)
+ DUMP_COP0_REG(CP0_STATUS, "Status: 0x", 32, mfc0)
+ DUMP_COP0_REG(CP0_EBASE, "EBase: 0x", long, MFC0)
+ DUMP_COP0_REG(CP0_BADVADDR, "BadVAddr: 0x", long, MFC0)
+ DUMP_COP0_REG(CP0_BADINSTR, "BadInstr: 0x", 32, mfc0)
+
+ PTR_LA a0, str_newline
+ jal _mips_cps_puts
+ jr s0
+ END(mips_cps_bev_dump)
+
+.pushsection .data
+str_bev: .asciiz "BEV Exception: "
+str_newline: .asciiz "\r\n"
+.popsection
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index 209ded16806b..8fd5a276cad2 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -25,14 +25,32 @@
.set noreorder
+#ifdef CONFIG_64BIT
+# define STATUS_BITDEPS ST0_KX
+#else
+# define STATUS_BITDEPS 0
+#endif
+
+#ifdef CONFIG_MIPS_CPS_NS16550
+
+#define DUMP_EXCEP(name) \
+ PTR_LA a0, 8f; \
+ jal mips_cps_bev_dump; \
+ nop; \
+ TEXT(name)
+
+#else /* !CONFIG_MIPS_CPS_NS16550 */
+
+#define DUMP_EXCEP(name)
+
+#endif /* !CONFIG_MIPS_CPS_NS16550 */
+
/*
* Set dest to non-zero if the core supports the MT ASE, else zero. If
* MT is not supported then branch to nomt.
*/
.macro has_mt dest, nomt
- mfc0 \dest, CP0_CONFIG
- bgez \dest, \nomt
- mfc0 \dest, CP0_CONFIG, 1
+ mfc0 \dest, CP0_CONFIG, 1
bgez \dest, \nomt
mfc0 \dest, CP0_CONFIG, 2
bgez \dest, \nomt
@@ -47,11 +65,9 @@
LEAF(mips_cps_core_entry)
/*
- * These first 12 bytes will be patched by cps_smp_setup to load the
- * base address of the CM GCRs into register v1 and the CCA to use into
- * register s0.
+ * These first 4 bytes will be patched by cps_smp_setup to load the
+ * CCA to use into register s0.
*/
- .quad 0
.word 0
/* Check whether we're here due to an NMI */
@@ -71,7 +87,7 @@ not_nmi:
mtc0 t0, CP0_CAUSE
/* Setup Status */
- li t0, ST0_CU1 | ST0_CU0
+ li t0, ST0_CU1 | ST0_CU0 | ST0_BEV | STATUS_BITDEPS
mtc0 t0, CP0_STATUS
/*
@@ -151,6 +167,12 @@ dcache_done:
mtc0 t0, CP0_CONFIG
ehb
+ /* Calculate an uncached address for the CM GCRs */
+ MFC0 v1, CP0_CMGCRBASE
+ PTR_SLL v1, v1, 4
+ PTR_LI t0, UNCAC_BASE
+ PTR_ADDU v1, v1, t0
+
/* Enter the coherent domain */
li t0, 0xff
sw t0, GCR_CL_COHERENCE_OFS(v1)
@@ -188,36 +210,42 @@ dcache_done:
.org 0x200
LEAF(excep_tlbfill)
+ DUMP_EXCEP("TLB Fill")
b .
nop
END(excep_tlbfill)
.org 0x280
LEAF(excep_xtlbfill)
+ DUMP_EXCEP("XTLB Fill")
b .
nop
END(excep_xtlbfill)
.org 0x300
LEAF(excep_cache)
+ DUMP_EXCEP("Cache")
b .
nop
END(excep_cache)
.org 0x380
LEAF(excep_genex)
+ DUMP_EXCEP("General")
b .
nop
END(excep_genex)
.org 0x400
LEAF(excep_intex)
+ DUMP_EXCEP("Interrupt")
b .
nop
END(excep_intex)
.org 0x480
LEAF(excep_ejtag)
+ DUMP_EXCEP("EJTAG")
PTR_LA k0, ejtag_debug_handler
jr k0
nop
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 09a51d091941..6b9064499bd3 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -536,8 +536,7 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
c->options |= MIPS_CPU_SEGMENTS;
if (config3 & MIPS_CONF3_MSA)
c->ases |= MIPS_ASE_MSA;
- /* Only tested on 32-bit cores */
- if ((config3 & MIPS_CONF3_PW) && config_enabled(CONFIG_32BIT)) {
+ if (config3 & MIPS_CONF3_PW) {
c->htw_seq = 0;
c->options |= MIPS_CPU_HTW;
}
diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c
index e5ed7ada1433..1f910563fdf6 100644
--- a/arch/mips/kernel/csrc-r4k.c
+++ b/arch/mips/kernel/csrc-r4k.c
@@ -28,6 +28,43 @@ static u64 notrace r4k_read_sched_clock(void)
return read_c0_count();
}
+static inline unsigned int rdhwr_count(void)
+{
+ unsigned int count;
+
+ __asm__ __volatile__(
+ " .set push\n"
+ " .set mips32r2\n"
+ " rdhwr %0, $2\n"
+ " .set pop\n"
+ : "=r" (count));
+
+ return count;
+}
+
+static bool rdhwr_count_usable(void)
+{
+ unsigned int prev, curr, i;
+
+ /*
+ * Older QEMUs have a broken implementation of RDHWR for the CP0 count
+ * which always returns a constant value. Try to identify this and don't
+ * use it in the VDSO if it is broken. This workaround can be removed
+ * once the fix has been in QEMU stable for a reasonable amount of time.
+ */
+ for (i = 0, prev = rdhwr_count(); i < 100; i++) {
+ curr = rdhwr_count();
+
+ if (curr != prev)
+ return true;
+
+ prev = curr;
+ }
+
+ pr_warn("Not using R4K clocksource in VDSO due to broken RDHWR\n");
+ return false;
+}
+
int __init init_r4k_clocksource(void)
{
if (!cpu_has_counter || !mips_hpt_frequency)
@@ -36,6 +73,13 @@ int __init init_r4k_clocksource(void)
/* Calculate a somewhat reasonable rating value */
clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
+ /*
+ * R2 onwards makes the count accessible to user mode so it can be used
+ * by the VDSO (HWREna is configured by configure_hwrena()).
+ */
+ if (cpu_has_mips_r2_r6 && rdhwr_count_usable())
+ clocksource_mips.archdata.vdso_clock_mode = VDSO_CLOCK_R4K;
+
clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
sched_clock_register(r4k_read_sched_clock, 32, mips_hpt_frequency);
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index ab1478d5a4db..46794d64c0bf 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -134,6 +134,16 @@ void __init check_wait(void)
return;
}
+ /*
+ * MIPSr6 specifies that masked interrupts should unblock an executing
+ * wait instruction, and thus that it is safe for us to use
+ * r4k_wait_irqoff. Yippee!
+ */
+ if (cpu_has_mips_r6) {
+ cpu_wait = r4k_wait_irqoff;
+ return;
+ }
+
switch (current_cpu_type()) {
case CPU_R3081:
case CPU_R3081E:
@@ -155,12 +165,12 @@ void __init check_wait(void)
case CPU_4KEC:
case CPU_4KSC:
case CPU_5KC:
+ case CPU_5KE:
case CPU_25KF:
case CPU_PR4450:
case CPU_BMIPS3300:
case CPU_BMIPS4350:
case CPU_BMIPS4380:
- case CPU_BMIPS5000:
case CPU_CAVIUM_OCTEON:
case CPU_CAVIUM_OCTEON_PLUS:
case CPU_CAVIUM_OCTEON2:
@@ -171,7 +181,9 @@ void __init check_wait(void)
case CPU_XLP:
cpu_wait = r4k_wait;
break;
-
+ case CPU_BMIPS5000:
+ cpu_wait = r4k_wait_irqoff;
+ break;
case CPU_RM7000:
cpu_wait = rm7k_wait_irqoff;
break;
@@ -196,7 +208,6 @@ void __init check_wait(void)
case CPU_INTERAPTIV:
case CPU_M5150:
case CPU_QEMU_GENERIC:
- case CPU_I6400:
cpu_wait = r4k_wait;
if (read_c0_config7() & MIPS_CONF7_WII)
cpu_wait = r4k_wait_irqoff;
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index b8ceee576cdf..1448c1f43d4e 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -9,6 +9,8 @@
*/
#include <linux/errno.h>
+#include <linux/percpu.h>
+#include <linux/spinlock.h>
#include <asm/mips-cm.h>
#include <asm/mipsregs.h>
@@ -136,6 +138,9 @@ static char *cm3_causes[32] = {
"0x19", "0x1a", "0x1b", "0x1c", "0x1d", "0x1e", "0x1f"
};
+static DEFINE_PER_CPU_ALIGNED(spinlock_t, cm_core_lock);
+static DEFINE_PER_CPU_ALIGNED(unsigned long, cm_core_lock_flags);
+
phys_addr_t __mips_cm_phys_base(void)
{
u32 config3 = read_c0_config3();
@@ -200,6 +205,7 @@ int mips_cm_probe(void)
{
phys_addr_t addr;
u32 base_reg;
+ unsigned cpu;
/*
* No need to probe again if we have already been
@@ -247,38 +253,70 @@ int mips_cm_probe(void)
/* determine register width for this CM */
mips_cm_is64 = config_enabled(CONFIG_64BIT) && (mips_cm_revision() >= CM_REV_CM3);
+ for_each_possible_cpu(cpu)
+ spin_lock_init(&per_cpu(cm_core_lock, cpu));
+
return 0;
}
-void mips_cm_error_report(void)
+void mips_cm_lock_other(unsigned int core, unsigned int vp)
{
- unsigned long revision = mips_cm_revision();
+ unsigned curr_core;
+ u32 val;
+
+ preempt_disable();
+ curr_core = current_cpu_data.core;
+ spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
+ per_cpu(cm_core_lock_flags, curr_core));
+
+ if (mips_cm_revision() >= CM_REV_CM3) {
+ val = core << CM3_GCR_Cx_OTHER_CORE_SHF;
+ val |= vp << CM3_GCR_Cx_OTHER_VP_SHF;
+ } else {
+ BUG_ON(vp != 0);
+ val = core << CM_GCR_Cx_OTHER_CORENUM_SHF;
+ }
+
+ write_gcr_cl_other(val);
+
/*
- * CM3 has a 64-bit Error cause register with 0:57 containing the error
- * info and 63:58 the error type. For old CMs, everything is contained
- * in a single 32-bit register (0:26 and 31:27 respectively). Even
- * though the cm_error is u64, we will simply ignore the upper word
- * for CM2.
+ * Ensure the core-other region reflects the appropriate core &
+ * VP before any accesses to it occur.
*/
- u64 cm_error = read_gcr_error_cause();
- int cm_error_cause_sft = CM_GCR_ERROR_CAUSE_ERRTYPE_SHF +
- ((revision >= CM_REV_CM3) ? 31 : 0);
- unsigned long cm_addr = read_gcr_error_addr();
- unsigned long cm_other = read_gcr_error_mult();
+ mb();
+}
+
+void mips_cm_unlock_other(void)
+{
+ unsigned curr_core = current_cpu_data.core;
+
+ spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
+ per_cpu(cm_core_lock_flags, curr_core));
+ preempt_enable();
+}
+
+void mips_cm_error_report(void)
+{
+ u64 cm_error, cm_addr, cm_other;
+ unsigned long revision;
int ocause, cause;
char buf[256];
if (!mips_cm_present())
return;
- cause = cm_error >> cm_error_cause_sft;
+ revision = mips_cm_revision();
- if (!cause)
- /* All good */
- return;
-
- ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
if (revision < CM_REV_CM3) { /* CM2 */
+ cm_error = read_gcr_error_cause();
+ cm_addr = read_gcr_error_addr();
+ cm_other = read_gcr_error_mult();
+ cause = cm_error >> CM_GCR_ERROR_CAUSE_ERRTYPE_SHF;
+ ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+
+ if (!cause)
+ return;
+
if (cause < 16) {
unsigned long cca_bits = (cm_error >> 15) & 7;
unsigned long tr_bits = (cm_error >> 12) & 7;
@@ -310,18 +348,30 @@ void mips_cm_error_report(void)
}
pr_err("CM_ERROR=%08llx %s <%s>\n", cm_error,
cm2_causes[cause], buf);
- pr_err("CM_ADDR =%08lx\n", cm_addr);
- pr_err("CM_OTHER=%08lx %s\n", cm_other, cm2_causes[ocause]);
+ pr_err("CM_ADDR =%08llx\n", cm_addr);
+ pr_err("CM_OTHER=%08llx %s\n", cm_other, cm2_causes[ocause]);
} else { /* CM3 */
- /* Used by cause == {1,2,3} */
- unsigned long core_id_bits = (cm_error >> 22) & 0xf;
- unsigned long vp_id_bits = (cm_error >> 18) & 0xf;
- unsigned long cmd_bits = (cm_error >> 14) & 0xf;
- unsigned long cmd_group_bits = (cm_error >> 11) & 0xf;
- unsigned long cm3_cca_bits = (cm_error >> 8) & 7;
- unsigned long mcp_bits = (cm_error >> 5) & 0xf;
- unsigned long cm3_tr_bits = (cm_error >> 1) & 0xf;
- unsigned long sched_bit = cm_error & 0x1;
+ ulong core_id_bits, vp_id_bits, cmd_bits, cmd_group_bits;
+ ulong cm3_cca_bits, mcp_bits, cm3_tr_bits, sched_bit;
+
+ cm_error = read64_gcr_error_cause();
+ cm_addr = read64_gcr_error_addr();
+ cm_other = read64_gcr_error_mult();
+ cause = cm_error >> CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF;
+ ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+
+ if (!cause)
+ return;
+
+ /* Used by cause == {1,2,3} */
+ core_id_bits = (cm_error >> 22) & 0xf;
+ vp_id_bits = (cm_error >> 18) & 0xf;
+ cmd_bits = (cm_error >> 14) & 0xf;
+ cmd_group_bits = (cm_error >> 11) & 0xf;
+ cm3_cca_bits = (cm_error >> 8) & 7;
+ mcp_bits = (cm_error >> 5) & 0xf;
+ cm3_tr_bits = (cm_error >> 1) & 0xf;
+ sched_bit = cm_error & 0x1;
if (cause == 1 || cause == 3) { /* Tag ECC */
unsigned long tag_ecc = (cm_error >> 57) & 0x1;
@@ -363,12 +413,14 @@ void mips_cm_error_report(void)
cm3_cmd_group[cmd_group_bits],
cm3_cca_bits, 1 << mcp_bits,
cm3_tr[cm3_tr_bits], sched_bit);
+ } else {
+ buf[0] = 0;
}
pr_err("CM_ERROR=%llx %s <%s>\n", cm_error,
cm3_causes[cause], buf);
- pr_err("CM_ADDR =%lx\n", cm_addr);
- pr_err("CM_OTHER=%lx %s\n", cm_other, cm3_causes[ocause]);
+ pr_err("CM_ADDR =%llx\n", cm_addr);
+ pr_err("CM_OTHER=%llx %s\n", cm_other, cm3_causes[ocause]);
}
/* reprime cause register */
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index 8af4d627b68b..566b8d2c092c 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -76,6 +76,12 @@ void mips_cpc_lock_other(unsigned int core)
spin_lock_irqsave(&per_cpu(cpc_core_lock, curr_core),
per_cpu(cpc_core_lock_flags, curr_core));
write_cpc_cl_other(core << CPC_Cx_OTHER_CORENUM_SHF);
+
+ /*
+ * Ensure the core-other region reflects the appropriate core &
+ * VP before any accesses to it occur.
+ */
+ mb();
}
void mips_cpc_unlock_other(void)
diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c
index f2977f00911b..1f5aac7f9ec3 100644
--- a/arch/mips/kernel/mips-r2-to-r6-emul.c
+++ b/arch/mips/kernel/mips-r2-to-r6-emul.c
@@ -22,6 +22,7 @@
#include <asm/asm.h>
#include <asm/branch.h>
#include <asm/break.h>
+#include <asm/debug.h>
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/inst.h>
@@ -2363,7 +2364,6 @@ static const struct file_operations mipsr2_clear_fops = {
static int __init mipsr2_init_debugfs(void)
{
- extern struct dentry *mips_debugfs_dir;
struct dentry *mipsr2_emul;
if (!mips_debugfs_dir)
diff --git a/arch/mips/kernel/segment.c b/arch/mips/kernel/segment.c
index 076ead2a9859..87bc74a5a518 100644
--- a/arch/mips/kernel/segment.c
+++ b/arch/mips/kernel/segment.c
@@ -10,6 +10,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <asm/cpu.h>
+#include <asm/debug.h>
#include <asm/mipsregs.h>
static void build_segment_config(char *str, unsigned int cfg)
@@ -91,7 +92,6 @@ static const struct file_operations segments_fops = {
static int __init segments_info(void)
{
- extern struct dentry *mips_debugfs_dir;
struct dentry *segments;
if (cpu_has_segments) {
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 479515109e5b..66aac55df349 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -33,11 +33,16 @@
#include <asm/cache.h>
#include <asm/cdmm.h>
#include <asm/cpu.h>
+#include <asm/debug.h>
#include <asm/sections.h>
#include <asm/setup.h>
#include <asm/smp-ops.h>
#include <asm/prom.h>
+#ifdef CONFIG_MIPS_ELF_APPENDED_DTB
+const char __section(.appended_dtb) __appended_dtb[0x100000];
+#endif /* CONFIG_MIPS_ELF_APPENDED_DTB */
+
struct cpuinfo_mips cpu_data[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(cpu_data);
@@ -616,6 +621,10 @@ static void __init request_crashkernel(struct resource *res)
}
#endif /* !defined(CONFIG_KEXEC) */
+#define USE_PROM_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER)
+#define USE_DTB_CMDLINE IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB)
+#define EXTEND_WITH_PROM IS_ENABLED(CONFIG_MIPS_CMDLINE_EXTEND)
+
static void __init arch_mem_init(char **cmdline_p)
{
struct memblock_region *reg;
@@ -640,18 +649,24 @@ static void __init arch_mem_init(char **cmdline_p)
pr_info("Determined physical RAM map:\n");
print_memory_map();
-#ifdef CONFIG_CMDLINE_BOOL
-#ifdef CONFIG_CMDLINE_OVERRIDE
+#if defined(CONFIG_CMDLINE_BOOL) && defined(CONFIG_CMDLINE_OVERRIDE)
strlcpy(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
#else
+ if ((USE_PROM_CMDLINE && arcs_cmdline[0]) ||
+ (USE_DTB_CMDLINE && !boot_command_line[0]))
+ strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
+
+ if (EXTEND_WITH_PROM && arcs_cmdline[0]) {
+ strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
+ strlcat(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
+ }
+
+#if defined(CONFIG_CMDLINE_BOOL)
if (builtin_cmdline[0]) {
- strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
- strlcat(arcs_cmdline, builtin_cmdline, COMMAND_LINE_SIZE);
+ strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
+ strlcat(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
- strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
#endif
-#else
- strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
#endif
strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c
index 2fec67bfc457..bf792e2839a6 100644
--- a/arch/mips/kernel/signal.c
+++ b/arch/mips/kernel/signal.c
@@ -36,7 +36,6 @@
#include <asm/ucontext.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
-#include <asm/vdso.h>
#include <asm/dsp.h>
#include <asm/inst.h>
#include <asm/msa.h>
@@ -752,16 +751,15 @@ static int setup_rt_frame(void *sig_return, struct ksignal *ksig,
struct mips_abi mips_abi = {
#ifdef CONFIG_TRAD_SIGNALS
.setup_frame = setup_frame,
- .signal_return_offset = offsetof(struct mips_vdso, signal_trampoline),
#endif
.setup_rt_frame = setup_rt_frame,
- .rt_signal_return_offset =
- offsetof(struct mips_vdso, rt_signal_trampoline),
.restart = __NR_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
+
+ .vdso = &vdso_image,
};
static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
@@ -801,11 +799,11 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)
}
if (sig_uses_siginfo(&ksig->ka))
- ret = abi->setup_rt_frame(vdso + abi->rt_signal_return_offset,
+ ret = abi->setup_rt_frame(vdso + abi->vdso->off_rt_sigreturn,
ksig, regs, oldset);
else
- ret = abi->setup_frame(vdso + abi->signal_return_offset, ksig,
- regs, oldset);
+ ret = abi->setup_frame(vdso + abi->vdso->off_sigreturn,
+ ksig, regs, oldset);
signal_setup_done(ret, ksig, 0);
}
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index f7e89524e316..4909639aa35b 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -31,7 +31,6 @@
#include <asm/ucontext.h>
#include <asm/fpu.h>
#include <asm/war.h>
-#include <asm/vdso.h>
#include <asm/dsp.h>
#include "signal-common.h"
@@ -406,14 +405,12 @@ static int setup_rt_frame_32(void *sig_return, struct ksignal *ksig,
*/
struct mips_abi mips_abi_32 = {
.setup_frame = setup_frame_32,
- .signal_return_offset =
- offsetof(struct mips_vdso, o32_signal_trampoline),
.setup_rt_frame = setup_rt_frame_32,
- .rt_signal_return_offset =
- offsetof(struct mips_vdso, o32_rt_signal_trampoline),
.restart = __NR_O32_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext32, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext32, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext32, sc_used_math),
+
+ .vdso = &vdso_image_o32,
};
diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c
index 0d017fdcaf07..a7bc38430500 100644
--- a/arch/mips/kernel/signal_n32.c
+++ b/arch/mips/kernel/signal_n32.c
@@ -38,7 +38,6 @@
#include <asm/fpu.h>
#include <asm/cpu-features.h>
#include <asm/war.h>
-#include <asm/vdso.h>
#include "signal-common.h"
@@ -151,11 +150,11 @@ static int setup_rt_frame_n32(void *sig_return, struct ksignal *ksig,
struct mips_abi mips_abi_n32 = {
.setup_rt_frame = setup_rt_frame_n32,
- .rt_signal_return_offset =
- offsetof(struct mips_vdso, n32_rt_signal_trampoline),
.restart = __NR_N32_restart_syscall,
.off_sc_fpregs = offsetof(struct sigcontext, sc_fpregs),
.off_sc_fpc_csr = offsetof(struct sigcontext, sc_fpc_csr),
.off_sc_used_math = offsetof(struct sigcontext, sc_used_math),
+
+ .vdso = &vdso_image_n32,
};
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index c88937745b4e..e04c8057b882 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -8,6 +8,7 @@
* option) any later version.
*/
+#include <linux/delay.h>
#include <linux/io.h>
#include <linux/irqchip/mips-gic.h>
#include <linux/sched.h>
@@ -37,8 +38,9 @@ static unsigned core_vpe_count(unsigned core)
if (!config_enabled(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
return 1;
- write_gcr_cl_other(core << CM_GCR_Cx_OTHER_CORENUM_SHF);
+ mips_cm_lock_other(core, 0);
cfg = read_gcr_co_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
+ mips_cm_unlock_other();
return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
}
@@ -133,11 +135,9 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
/*
* Patch the start of mips_cps_core_entry to provide:
*
- * v1 = CM base address
* s0 = kseg0 CCA
*/
entry_code = (u32 *)&mips_cps_core_entry;
- UASM_i_LA(&entry_code, 3, (long)mips_cm_base);
uasm_i_addiu(&entry_code, 16, 0, cca);
blast_dcache_range((unsigned long)&mips_cps_core_entry,
(unsigned long)entry_code);
@@ -190,10 +190,11 @@ err_out:
static void boot_core(unsigned core)
{
- u32 access;
+ u32 access, stat, seq_state;
+ unsigned timeout;
/* Select the appropriate core */
- write_gcr_cl_other(core << CM_GCR_Cx_OTHER_CORENUM_SHF);
+ mips_cm_lock_other(core, 0);
/* Set its reset vector */
write_gcr_co_reset_base(CKSEG1ADDR((unsigned long)mips_cps_core_entry));
@@ -210,12 +211,36 @@ static void boot_core(unsigned core)
/* Reset the core */
mips_cpc_lock_other(core);
write_cpc_co_cmd(CPC_Cx_CMD_RESET);
+
+ timeout = 100;
+ while (true) {
+ stat = read_cpc_co_stat_conf();
+ seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE_MSK;
+
+ /* U6 == coherent execution, ie. the core is up */
+ if (seq_state == CPC_Cx_STAT_CONF_SEQSTATE_U6)
+ break;
+
+ /* Delay a little while before we start warning */
+ if (timeout) {
+ timeout--;
+ mdelay(10);
+ continue;
+ }
+
+ pr_warn("Waiting for core %u to start... STAT_CONF=0x%x\n",
+ core, stat);
+ mdelay(1000);
+ }
+
mips_cpc_unlock_other();
} else {
/* Take the core out of reset */
write_gcr_co_reset_release(0);
}
+ mips_cm_unlock_other();
+
/* The core is now powered up */
bitmap_set(core_power, core, 1);
}
diff --git a/arch/mips/kernel/smp-gic.c b/arch/mips/kernel/smp-gic.c
index 5f0ab5bcd01e..9b63829cf929 100644
--- a/arch/mips/kernel/smp-gic.c
+++ b/arch/mips/kernel/smp-gic.c
@@ -46,9 +46,11 @@ void gic_send_ipi_single(int cpu, unsigned int action)
if (mips_cpc_present() && (core != current_cpu_data.core)) {
while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) {
+ mips_cm_lock_other(core, 0);
mips_cpc_lock_other(core);
write_cpc_co_cmd(CPC_Cx_CMD_PWRUP);
mips_cpc_unlock_other();
+ mips_cm_unlock_other();
}
}
diff --git a/arch/mips/kernel/spinlock_test.c b/arch/mips/kernel/spinlock_test.c
index 39f7ab7b0426..f7d86955d1b8 100644
--- a/arch/mips/kernel/spinlock_test.c
+++ b/arch/mips/kernel/spinlock_test.c
@@ -5,7 +5,7 @@
#include <linux/debugfs.h>
#include <linux/export.h>
#include <linux/spinlock.h>
-
+#include <asm/debug.h>
static int ss_get(void *data, u64 *val)
{
@@ -115,8 +115,6 @@ static int multi_get(void *data, u64 *val)
DEFINE_SIMPLE_ATTRIBUTE(fops_multi, multi_get, NULL, "%llu\n");
-
-extern struct dentry *mips_debugfs_dir;
static int __init spinlock_test(void)
{
struct dentry *d;
diff --git a/arch/mips/kernel/stacktrace.c b/arch/mips/kernel/stacktrace.c
index 1ba775d24d38..506021f62549 100644
--- a/arch/mips/kernel/stacktrace.c
+++ b/arch/mips/kernel/stacktrace.c
@@ -12,14 +12,15 @@
* Save stack-backtrace addresses into a stack_trace buffer:
*/
static void save_raw_context_stack(struct stack_trace *trace,
- unsigned long reg29)
+ unsigned long reg29, int savesched)
{
unsigned long *sp = (unsigned long *)reg29;
unsigned long addr;
while (!kstack_end(sp)) {
addr = *sp++;
- if (__kernel_text_address(addr)) {
+ if (__kernel_text_address(addr) &&
+ (savesched || !in_sched_functions(addr))) {
if (trace->skip > 0)
trace->skip--;
else
@@ -31,7 +32,7 @@ static void save_raw_context_stack(struct stack_trace *trace,
}
static void save_context_stack(struct stack_trace *trace,
- struct task_struct *tsk, struct pt_regs *regs)
+ struct task_struct *tsk, struct pt_regs *regs, int savesched)
{
unsigned long sp = regs->regs[29];
#ifdef CONFIG_KALLSYMS
@@ -43,20 +44,22 @@ static void save_context_stack(struct stack_trace *trace,
(unsigned long)task_stack_page(tsk);
if (stack_page && sp >= stack_page &&
sp <= stack_page + THREAD_SIZE - 32)
- save_raw_context_stack(trace, sp);
+ save_raw_context_stack(trace, sp, savesched);
return;
}
do {
- if (trace->skip > 0)
- trace->skip--;
- else
- trace->entries[trace->nr_entries++] = pc;
- if (trace->nr_entries >= trace->max_entries)
- break;
+ if (savesched || !in_sched_functions(pc)) {
+ if (trace->skip > 0)
+ trace->skip--;
+ else
+ trace->entries[trace->nr_entries++] = pc;
+ if (trace->nr_entries >= trace->max_entries)
+ break;
+ }
pc = unwind_stack(tsk, &sp, pc, &ra);
} while (pc);
#else
- save_raw_context_stack(trace, sp);
+ save_raw_context_stack(trace, sp, savesched);
#endif
}
@@ -82,6 +85,6 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
regs->cp0_epc = tsk->thread.reg31;
} else
prepare_frametrace(regs);
- save_context_stack(trace, tsk, regs);
+ save_context_stack(trace, tsk, regs, tsk == current);
}
EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index fdb392b27e81..886cb1976e90 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -37,6 +37,7 @@
#include <linux/irq.h>
#include <linux/perf_event.h>
+#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <asm/branch.h>
#include <asm/break.h>
@@ -1856,12 +1857,14 @@ void __noreturn nmi_exception_handler(struct pt_regs *regs)
{
char str[100];
+ nmi_enter();
raw_notifier_call_chain(&nmi_chain, 0, regs);
bust_spinlocks(1);
snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n",
smp_processor_id(), regs->cp0_epc);
regs->cp0_epc = read_c0_errorepc();
die(str, regs);
+ nmi_exit();
}
#define VECTORSPACING 0x100 /* for EI/VI mode */
@@ -2204,12 +2207,8 @@ void __init trap_init(void)
ebase = (unsigned long)
__alloc_bootmem(size, 1 << fls(size), 0);
} else {
-#ifdef CONFIG_KVM_GUEST
-#define KVM_GUEST_KSEG0 0x40000000
- ebase = KVM_GUEST_KSEG0;
-#else
- ebase = CKSEG0;
-#endif
+ ebase = CAC_BASE;
+
if (cpu_has_mips_r2_r6)
ebase += (read_c0_ebase() & 0x3ffff000);
}
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 990354dd6bde..490cea569d57 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -85,6 +85,7 @@
#include <asm/branch.h>
#include <asm/byteorder.h>
#include <asm/cop2.h>
+#include <asm/debug.h>
#include <asm/fpu.h>
#include <asm/fpu_emulator.h>
#include <asm/inst.h>
@@ -2295,7 +2296,6 @@ sigbus:
}
#ifdef CONFIG_DEBUG_FS
-extern struct dentry *mips_debugfs_dir;
static int __init debugfs_unaligned(void)
{
struct dentry *d;
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index ed2a278722a9..975e99759bab 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -1,122 +1,175 @@
/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
*
- * Copyright (C) 2009, 2010 Cavium Networks, Inc.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
*/
-
-#include <linux/kernel.h>
-#include <linux/err.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/init.h>
#include <linux/binfmts.h>
#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/unistd.h>
-#include <linux/random.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/irqchip/mips-gic.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/timekeeper_internal.h>
+#include <asm/abi.h>
#include <asm/vdso.h>
-#include <asm/uasm.h>
-#include <asm/processor.h>
+
+/* Kernel-provided data used by the VDSO. */
+static union mips_vdso_data vdso_data __page_aligned_data;
/*
- * Including <asm/unistd.h> would give use the 64-bit syscall numbers ...
+ * Mapping for the VDSO data/GIC pages. The real pages are mapped manually, as
+ * what we map and where within the area they are mapped is determined at
+ * runtime.
*/
-#define __NR_O32_sigreturn 4119
-#define __NR_O32_rt_sigreturn 4193
-#define __NR_N32_rt_sigreturn 6211
+static struct page *no_pages[] = { NULL };
+static struct vm_special_mapping vdso_vvar_mapping = {
+ .name = "[vvar]",
+ .pages = no_pages,
+};
-static struct page *vdso_page;
-
-static void __init install_trampoline(u32 *tramp, unsigned int sigreturn)
+static void __init init_vdso_image(struct mips_vdso_image *image)
{
- uasm_i_addiu(&tramp, 2, 0, sigreturn); /* li v0, sigreturn */
- uasm_i_syscall(&tramp, 0);
+ unsigned long num_pages, i;
+
+ BUG_ON(!PAGE_ALIGNED(image->data));
+ BUG_ON(!PAGE_ALIGNED(image->size));
+
+ num_pages = image->size / PAGE_SIZE;
+
+ for (i = 0; i < num_pages; i++) {
+ image->mapping.pages[i] =
+ virt_to_page(image->data + (i * PAGE_SIZE));
+ }
}
static int __init init_vdso(void)
{
- struct mips_vdso *vdso;
-
- vdso_page = alloc_page(GFP_KERNEL);
- if (!vdso_page)
- panic("Cannot allocate vdso");
-
- vdso = vmap(&vdso_page, 1, 0, PAGE_KERNEL);
- if (!vdso)
- panic("Cannot map vdso");
- clear_page(vdso);
-
- install_trampoline(vdso->rt_signal_trampoline, __NR_rt_sigreturn);
-#ifdef CONFIG_32BIT
- install_trampoline(vdso->signal_trampoline, __NR_sigreturn);
-#else
- install_trampoline(vdso->n32_rt_signal_trampoline,
- __NR_N32_rt_sigreturn);
- install_trampoline(vdso->o32_signal_trampoline, __NR_O32_sigreturn);
- install_trampoline(vdso->o32_rt_signal_trampoline,
- __NR_O32_rt_sigreturn);
+ init_vdso_image(&vdso_image);
+
+#ifdef CONFIG_MIPS32_O32
+ init_vdso_image(&vdso_image_o32);
#endif
- vunmap(vdso);
+#ifdef CONFIG_MIPS32_N32
+ init_vdso_image(&vdso_image_n32);
+#endif
return 0;
}
subsys_initcall(init_vdso);
-static unsigned long vdso_addr(unsigned long start)
+void update_vsyscall(struct timekeeper *tk)
{
- unsigned long offset = 0UL;
-
- if (current->flags & PF_RANDOMIZE) {
- offset = get_random_int();
- offset <<= PAGE_SHIFT;
- if (TASK_IS_32BIT_ADDR)
- offset &= 0xfffffful;
- else
- offset &= 0xffffffful;
+ vdso_data_write_begin(&vdso_data);
+
+ vdso_data.xtime_sec = tk->xtime_sec;
+ vdso_data.xtime_nsec = tk->tkr_mono.xtime_nsec;
+ vdso_data.wall_to_mono_sec = tk->wall_to_monotonic.tv_sec;
+ vdso_data.wall_to_mono_nsec = tk->wall_to_monotonic.tv_nsec;
+ vdso_data.cs_shift = tk->tkr_mono.shift;
+
+ vdso_data.clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode;
+ if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
+ vdso_data.cs_mult = tk->tkr_mono.mult;
+ vdso_data.cs_cycle_last = tk->tkr_mono.cycle_last;
+ vdso_data.cs_mask = tk->tkr_mono.mask;
}
- return STACK_TOP + offset;
+ vdso_data_write_end(&vdso_data);
+}
+
+void update_vsyscall_tz(void)
+{
+ if (vdso_data.clock_mode != VDSO_CLOCK_NONE) {
+ vdso_data.tz_minuteswest = sys_tz.tz_minuteswest;
+ vdso_data.tz_dsttime = sys_tz.tz_dsttime;
+ }
}
int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
{
- int ret;
- unsigned long addr;
+ struct mips_vdso_image *image = current->thread.abi->vdso;
struct mm_struct *mm = current->mm;
+ unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr;
+ struct vm_area_struct *vma;
+ struct resource gic_res;
+ int ret;
down_write(&mm->mmap_sem);
- addr = vdso_addr(mm->start_stack);
+ /*
+ * Determine total area size. This includes the VDSO data itself, the
+ * data page, and the GIC user page if present. Always create a mapping
+ * for the GIC user area if the GIC is present regardless of whether it
+ * is the current clocksource, in case it comes into use later on. We
+ * only map a page even though the total area is 64K, as we only need
+ * the counter registers at the start.
+ */
+ gic_size = gic_present ? PAGE_SIZE : 0;
+ vvar_size = gic_size + PAGE_SIZE;
+ size = vvar_size + image->size;
+
+ base = get_unmapped_area(NULL, 0, size, 0, 0);
+ if (IS_ERR_VALUE(base)) {
+ ret = base;
+ goto out;
+ }
+
+ data_addr = base + gic_size;
+ vdso_addr = data_addr + PAGE_SIZE;
- addr = get_unmapped_area(NULL, addr, PAGE_SIZE, 0, 0);
- if (IS_ERR_VALUE(addr)) {
- ret = addr;
- goto up_fail;
+ vma = _install_special_mapping(mm, base, vvar_size,
+ VM_READ | VM_MAYREAD,
+ &vdso_vvar_mapping);
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
+ goto out;
}
- ret = install_special_mapping(mm, addr, PAGE_SIZE,
- VM_READ|VM_EXEC|
- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
- &vdso_page);
+ /* Map GIC user page. */
+ if (gic_size) {
+ ret = gic_get_usm_range(&gic_res);
+ if (ret)
+ goto out;
+
+ ret = io_remap_pfn_range(vma, base,
+ gic_res.start >> PAGE_SHIFT,
+ gic_size,
+ pgprot_noncached(PAGE_READONLY));
+ if (ret)
+ goto out;
+ }
+ /* Map data page. */
+ ret = remap_pfn_range(vma, data_addr,
+ virt_to_phys(&vdso_data) >> PAGE_SHIFT,
+ PAGE_SIZE, PAGE_READONLY);
if (ret)
- goto up_fail;
+ goto out;
+
+ /* Map VDSO image. */
+ vma = _install_special_mapping(mm, vdso_addr, image->size,
+ VM_READ | VM_EXEC |
+ VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC,
+ &image->mapping);
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
+ goto out;
+ }
- mm->context.vdso = (void *)addr;
+ mm->context.vdso = (void *)vdso_addr;
+ ret = 0;
-up_fail:
+out:
up_write(&mm->mmap_sem);
return ret;
}
-
-const char *arch_vma_name(struct vm_area_struct *vma)
-{
- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso)
- return "[vdso]";
- return NULL;
-}
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 07d32a4aea60..0a93e83cd014 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -17,7 +17,9 @@ OUTPUT_ARCH(mips)
ENTRY(kernel_entry)
PHDRS {
text PT_LOAD FLAGS(7); /* RWX */
+#ifndef CONFIG_CAVIUM_OCTEON_SOC
note PT_NOTE FLAGS(4); /* R__ */
+#endif /* CAVIUM_OCTEON_SOC */
}
#ifdef CONFIG_32BIT
@@ -71,7 +73,12 @@ SECTIONS
__stop___dbe_table = .;
}
- NOTES :text :note
+#ifdef CONFIG_CAVIUM_OCTEON_SOC
+#define NOTES_HEADER
+#else /* CONFIG_CAVIUM_OCTEON_SOC */
+#define NOTES_HEADER :note
+#endif /* CONFIG_CAVIUM_OCTEON_SOC */
+ NOTES :text NOTES_HEADER
.dummy : { *(.dummy) } :text
_sdata = .; /* Start of data section */
@@ -132,6 +139,11 @@ SECTIONS
__appended_dtb = .;
/* leave space for appended DTB */
. += 0x100000;
+#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB)
+ .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) {
+ *(.appended_dtb)
+ KEEP(*(.appended_dtb))
+ }
#endif
/*
* Align to 64K in attempt to eliminate holes before the
@@ -181,6 +193,7 @@ SECTIONS
DISCARDS
/DISCARD/ : {
/* ABI crap starts here */
+ *(.MIPS.abiflags)
*(.MIPS.options)
*(.options)
*(.pdr)
diff --git a/arch/mips/kvm/locore.S b/arch/mips/kvm/locore.S
index c567240386a0..7bab3a4e8f7d 100644
--- a/arch/mips/kvm/locore.S
+++ b/arch/mips/kvm/locore.S
@@ -36,14 +36,6 @@
#define PT_HOST_USERLOCAL PT_EPC
#define CP0_DDATA_LO $28,3
-#define CP0_CONFIG3 $16,3
-#define CP0_CONFIG5 $16,5
-#define CP0_EBASE $15,1
-
-#define CP0_INTCTL $12,1
-#define CP0_SRSCTL $12,2
-#define CP0_SRSMAP $12,3
-#define CP0_HWRENA $7,0
/* Resume Flags */
#define RESUME_FLAG_HOST (1<<1) /* Resume host? */
diff --git a/arch/mips/lantiq/clk.c b/arch/mips/lantiq/clk.c
index 3fc2e6d70c77..a0706fd4ce0a 100644
--- a/arch/mips/lantiq/clk.c
+++ b/arch/mips/lantiq/clk.c
@@ -99,6 +99,23 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
}
EXPORT_SYMBOL(clk_set_rate);
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+ if (unlikely(!clk_good(clk)))
+ return 0;
+ if (clk->rates && *clk->rates) {
+ unsigned long *r = clk->rates;
+
+ while (*r && (*r != rate))
+ r++;
+ if (!*r) {
+ return clk->rate;
+ }
+ }
+ return rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
int clk_enable(struct clk *clk)
{
if (unlikely(!clk_good(clk)))
diff --git a/arch/mips/lantiq/clk.h b/arch/mips/lantiq/clk.h
index 77e4bdb1fe8c..7376ce817eda 100644
--- a/arch/mips/lantiq/clk.h
+++ b/arch/mips/lantiq/clk.h
@@ -31,13 +31,18 @@
#define CLOCK_240M 240000000
#define CLOCK_250M 250000000
#define CLOCK_266M 266666666
+#define CLOCK_288M 288888888
#define CLOCK_300M 300000000
#define CLOCK_333M 333333333
+#define CLOCK_360M 360000000
#define CLOCK_393M 393215332
#define CLOCK_400M 400000000
+#define CLOCK_432M 432000000
#define CLOCK_450M 450000000
#define CLOCK_500M 500000000
#define CLOCK_600M 600000000
+#define CLOCK_666M 666666666
+#define CLOCK_720M 720000000
/* clock out speeds */
#define CLOCK_32_768K 32768
@@ -80,4 +85,12 @@ extern unsigned long ltq_vr9_cpu_hz(void);
extern unsigned long ltq_vr9_fpi_hz(void);
extern unsigned long ltq_vr9_pp32_hz(void);
+extern unsigned long ltq_ar10_cpu_hz(void);
+extern unsigned long ltq_ar10_fpi_hz(void);
+extern unsigned long ltq_ar10_pp32_hz(void);
+
+extern unsigned long ltq_grx390_cpu_hz(void);
+extern unsigned long ltq_grx390_fpi_hz(void);
+extern unsigned long ltq_grx390_pp32_hz(void);
+
#endif
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 2c218c3bbca5..2e7f60c9fc5d 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -369,8 +369,8 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
if (of_address_to_resource(node, i, &res))
panic("Failed to get icu memory range");
- if (request_mem_region(res.start, resource_size(&res),
- res.name) < 0)
+ if (!request_mem_region(res.start, resource_size(&res),
+ res.name))
pr_err("Failed to request icu memory");
ltq_icu_membase[i] = ioremap_nocache(res.start,
@@ -449,8 +449,8 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
if (ret != exin_avail)
panic("failed to load external irq resources");
- if (request_mem_region(res.start, resource_size(&res),
- res.name) < 0)
+ if (!request_mem_region(res.start, resource_size(&res),
+ res.name))
pr_err("Failed to request eiu memory");
ltq_eiu_membase = ioremap_nocache(res.start,
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 0db099ecc016..297bcaa6b5d3 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -77,8 +77,6 @@ void __init plat_mem_setup(void)
* parsed resulting in our memory appearing
*/
__dt_setup_arch(__dtb_start);
-
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
}
void __init device_tree_init(void)
diff --git a/arch/mips/lantiq/xway/clk.c b/arch/mips/lantiq/xway/clk.c
index 8750dc0a1bf6..07f6d5b0b65e 100644
--- a/arch/mips/lantiq/xway/clk.c
+++ b/arch/mips/lantiq/xway/clk.c
@@ -4,6 +4,7 @@
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
*/
#include <linux/io.h>
@@ -25,9 +26,9 @@ static unsigned int ram_clocks[] = {
/* legacy xway clock */
#define CGU_SYS 0x10
-/* vr9 clock */
-#define CGU_SYS_VR9 0x0c
-#define CGU_IF_CLK_VR9 0x24
+/* vr9, ar10/grx390 clock */
+#define CGU_SYS_XRX 0x0c
+#define CGU_IF_CLK_AR10 0x24
unsigned long ltq_danube_fpi_hz(void)
{
@@ -87,8 +88,9 @@ unsigned long ltq_ar9_fpi_hz(void)
unsigned long sys = ltq_ar9_sys_hz();
if (ltq_cgu_r32(CGU_SYS) & BIT(0))
- return sys;
- return sys >> 1;
+ return sys / 3;
+ else
+ return sys / 2;
}
unsigned long ltq_ar9_cpu_hz(void)
@@ -104,7 +106,7 @@ unsigned long ltq_vr9_cpu_hz(void)
unsigned int cpu_sel;
unsigned long clk;
- cpu_sel = (ltq_cgu_r32(CGU_SYS_VR9) >> 4) & 0xf;
+ cpu_sel = (ltq_cgu_r32(CGU_SYS_XRX) >> 4) & 0xf;
switch (cpu_sel) {
case 0:
@@ -145,7 +147,7 @@ unsigned long ltq_vr9_fpi_hz(void)
unsigned long clk;
cpu_clk = ltq_vr9_cpu_hz();
- ocp_sel = ltq_cgu_r32(CGU_SYS_VR9) & 0x3;
+ ocp_sel = ltq_cgu_r32(CGU_SYS_XRX) & 0x3;
switch (ocp_sel) {
case 0:
@@ -174,15 +176,18 @@ unsigned long ltq_vr9_fpi_hz(void)
unsigned long ltq_vr9_pp32_hz(void)
{
- unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 3;
+ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 0x7;
unsigned long clk;
switch (clksys) {
+ case 0:
+ clk = CLOCK_500M;
+ break;
case 1:
- clk = CLOCK_450M;
+ clk = CLOCK_432M;
break;
case 2:
- clk = CLOCK_300M;
+ clk = CLOCK_288M;
break;
default:
clk = CLOCK_500M;
@@ -191,3 +196,158 @@ unsigned long ltq_vr9_pp32_hz(void)
return clk;
}
+
+unsigned long ltq_ar10_cpu_hz(void)
+{
+ unsigned int clksys;
+ int cpu_fs = (ltq_cgu_r32(CGU_SYS_XRX) >> 8) & 0x1;
+ int freq_div = (ltq_cgu_r32(CGU_SYS_XRX) >> 4) & 0x7;
+
+ switch (cpu_fs) {
+ case 0:
+ clksys = CLOCK_500M;
+ break;
+ case 1:
+ clksys = CLOCK_600M;
+ break;
+ default:
+ clksys = CLOCK_500M;
+ break;
+ }
+
+ switch (freq_div) {
+ case 0:
+ return clksys;
+ case 1:
+ return clksys >> 1;
+ case 2:
+ return clksys >> 2;
+ default:
+ return clksys;
+ }
+}
+
+unsigned long ltq_ar10_fpi_hz(void)
+{
+ int freq_fpi = (ltq_cgu_r32(CGU_IF_CLK_AR10) >> 25) & 0xf;
+
+ switch (freq_fpi) {
+ case 1:
+ return CLOCK_300M;
+ case 5:
+ return CLOCK_250M;
+ case 2:
+ return CLOCK_150M;
+ case 6:
+ return CLOCK_125M;
+
+ default:
+ return CLOCK_125M;
+ }
+}
+
+unsigned long ltq_ar10_pp32_hz(void)
+{
+ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 0x7;
+ unsigned long clk;
+
+ switch (clksys) {
+ case 1:
+ clk = CLOCK_250M;
+ break;
+ case 4:
+ clk = CLOCK_400M;
+ break;
+ default:
+ clk = CLOCK_250M;
+ break;
+ }
+
+ return clk;
+}
+
+unsigned long ltq_grx390_cpu_hz(void)
+{
+ unsigned int clksys;
+ int cpu_fs = ((ltq_cgu_r32(CGU_SYS_XRX) >> 9) & 0x3);
+ int freq_div = ((ltq_cgu_r32(CGU_SYS_XRX) >> 4) & 0x7);
+
+ switch (cpu_fs) {
+ case 0:
+ clksys = CLOCK_600M;
+ break;
+ case 1:
+ clksys = CLOCK_666M;
+ break;
+ case 2:
+ clksys = CLOCK_720M;
+ break;
+ default:
+ clksys = CLOCK_600M;
+ break;
+ }
+
+ switch (freq_div) {
+ case 0:
+ return clksys;
+ case 1:
+ return clksys >> 1;
+ case 2:
+ return clksys >> 2;
+ default:
+ return clksys;
+ }
+}
+
+unsigned long ltq_grx390_fpi_hz(void)
+{
+ /* fpi clock is derived from ddr_clk */
+ unsigned int clksys;
+ int cpu_fs = ((ltq_cgu_r32(CGU_SYS_XRX) >> 9) & 0x3);
+ int freq_div = ((ltq_cgu_r32(CGU_SYS_XRX)) & 0x7);
+ switch (cpu_fs) {
+ case 0:
+ clksys = CLOCK_600M;
+ break;
+ case 1:
+ clksys = CLOCK_666M;
+ break;
+ case 2:
+ clksys = CLOCK_720M;
+ break;
+ default:
+ clksys = CLOCK_600M;
+ break;
+ }
+
+ switch (freq_div) {
+ case 1:
+ return clksys >> 1;
+ case 2:
+ return clksys >> 2;
+ default:
+ return clksys >> 1;
+ }
+}
+
+unsigned long ltq_grx390_pp32_hz(void)
+{
+ unsigned int clksys = (ltq_cgu_r32(CGU_SYS) >> 16) & 0x7;
+ unsigned long clk;
+
+ switch (clksys) {
+ case 1:
+ clk = CLOCK_250M;
+ break;
+ case 2:
+ clk = CLOCK_432M;
+ break;
+ case 4:
+ clk = CLOCK_400M;
+ break;
+ default:
+ clk = CLOCK_250M;
+ break;
+ }
+ return clk;
+}
diff --git a/arch/mips/lantiq/xway/prom.c b/arch/mips/lantiq/xway/prom.c
index 248429ab2622..8f6e02f1e965 100644
--- a/arch/mips/lantiq/xway/prom.c
+++ b/arch/mips/lantiq/xway/prom.c
@@ -4,6 +4,7 @@
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
*/
#include <linux/export.h>
@@ -19,8 +20,11 @@
#define SOC_TWINPASS "Twinpass"
#define SOC_AMAZON_SE "Amazon_SE"
#define SOC_AR9 "AR9"
-#define SOC_GR9 "GR9"
-#define SOC_VR9 "VR9"
+#define SOC_GR9 "GRX200"
+#define SOC_VR9 "xRX200"
+#define SOC_VRX220 "xRX220"
+#define SOC_AR10 "xRX300"
+#define SOC_GRX390 "xRX330"
#define COMP_DANUBE "lantiq,danube"
#define COMP_TWINPASS "lantiq,twinpass"
@@ -28,6 +32,8 @@
#define COMP_AR9 "lantiq,ar9"
#define COMP_GR9 "lantiq,gr9"
#define COMP_VR9 "lantiq,vr9"
+#define COMP_AR10 "lantiq,ar10"
+#define COMP_GRX390 "lantiq,grx390"
#define PART_SHIFT 12
#define PART_MASK 0x0FFFFFFF
@@ -101,6 +107,12 @@ void __init ltq_soc_detect(struct ltq_soc_info *i)
i->compatible = COMP_VR9;
break;
+ case SOC_ID_VRX220:
+ i->name = SOC_VRX220;
+ i->type = SOC_TYPE_VRX220;
+ i->compatible = COMP_VR9;
+ break;
+
case SOC_ID_GRX282_2:
case SOC_ID_GRX288_2:
i->name = SOC_GR9;
@@ -108,6 +120,25 @@ void __init ltq_soc_detect(struct ltq_soc_info *i)
i->compatible = COMP_GR9;
break;
+ case SOC_ID_ARX362:
+ case SOC_ID_ARX368:
+ case SOC_ID_ARX382:
+ case SOC_ID_ARX388:
+ case SOC_ID_URX388:
+ i->name = SOC_AR10;
+ i->type = SOC_TYPE_AR10;
+ i->compatible = COMP_AR10;
+ break;
+
+ case SOC_ID_GRX383:
+ case SOC_ID_GRX369:
+ case SOC_ID_GRX387:
+ case SOC_ID_GRX389:
+ i->name = SOC_GRX390;
+ i->type = SOC_TYPE_GRX390;
+ i->compatible = COMP_GRX390;
+ break;
+
default:
unreachable();
break;
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
index fe68f9ae47c1..bc29bb349e94 100644
--- a/arch/mips/lantiq/xway/reset.c
+++ b/arch/mips/lantiq/xway/reset.c
@@ -4,6 +4,7 @@
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
*/
#include <linux/init.h>
@@ -22,9 +23,6 @@
#include "../prom.h"
-#define ltq_rcu_w32(x, y) ltq_w32((x), ltq_rcu_membase + (y))
-#define ltq_rcu_r32(x) ltq_r32(ltq_rcu_membase + (x))
-
/* reset request register */
#define RCU_RST_REQ 0x0010
/* reset status register */
@@ -32,11 +30,33 @@
/* vr9 gphy registers */
#define RCU_GFS_ADD0_XRX200 0x0020
#define RCU_GFS_ADD1_XRX200 0x0068
+/* xRX300 gphy registers */
+#define RCU_GFS_ADD0_XRX300 0x0020
+#define RCU_GFS_ADD1_XRX300 0x0058
+#define RCU_GFS_ADD2_XRX300 0x00AC
+/* xRX330 gphy registers */
+#define RCU_GFS_ADD0_XRX330 0x0020
+#define RCU_GFS_ADD1_XRX330 0x0058
+#define RCU_GFS_ADD2_XRX330 0x00AC
+#define RCU_GFS_ADD3_XRX330 0x0264
+
+/* xbar BE flag */
+#define RCU_AHB_ENDIAN 0x004C
+#define RCU_VR9_BE_AHB1S 0x00000008
/* reboot bit */
#define RCU_RD_GPHY0_XRX200 BIT(31)
#define RCU_RD_SRST BIT(30)
#define RCU_RD_GPHY1_XRX200 BIT(29)
+/* xRX300 bits */
+#define RCU_RD_GPHY0_XRX300 BIT(31)
+#define RCU_RD_GPHY1_XRX300 BIT(29)
+#define RCU_RD_GPHY2_XRX300 BIT(28)
+/* xRX330 bits */
+#define RCU_RD_GPHY0_XRX330 BIT(31)
+#define RCU_RD_GPHY1_XRX330 BIT(29)
+#define RCU_RD_GPHY2_XRX330 BIT(28)
+#define RCU_RD_GPHY3_XRX330 BIT(10)
/* reset cause */
#define RCU_STAT_SHIFT 26
@@ -44,9 +64,60 @@
#define RCU_BOOT_SEL(x) ((x >> 18) & 0x7)
#define RCU_BOOT_SEL_XRX200(x) (((x >> 17) & 0xf) | ((x >> 8) & 0x10))
+/* dwc2 USB configuration registers */
+#define RCU_USB1CFG 0x0018
+#define RCU_USB2CFG 0x0034
+
+/* USB DMA endianness bits */
+#define RCU_USBCFG_HDSEL_BIT BIT(11)
+#define RCU_USBCFG_HOST_END_BIT BIT(10)
+#define RCU_USBCFG_SLV_END_BIT BIT(9)
+
+/* USB reset bits */
+#define RCU_USBRESET 0x0010
+
+#define USBRESET_BIT BIT(4)
+
+#define RCU_USBRESET2 0x0048
+
+#define USB1RESET_BIT BIT(4)
+#define USB2RESET_BIT BIT(5)
+
+#define RCU_CFG1A 0x0038
+#define RCU_CFG1B 0x003C
+
+/* USB PMU devices */
+#define PMU_AHBM BIT(15)
+#define PMU_USB0 BIT(6)
+#define PMU_USB1 BIT(27)
+
+/* USB PHY PMU devices */
+#define PMU_USB0_P BIT(0)
+#define PMU_USB1_P BIT(26)
+
/* remapped base addr of the reset control unit */
static void __iomem *ltq_rcu_membase;
static struct device_node *ltq_rcu_np;
+static DEFINE_SPINLOCK(ltq_rcu_lock);
+
+static void ltq_rcu_w32(uint32_t val, uint32_t reg_off)
+{
+ ltq_w32(val, ltq_rcu_membase + reg_off);
+}
+
+static uint32_t ltq_rcu_r32(uint32_t reg_off)
+{
+ return ltq_r32(ltq_rcu_membase + reg_off);
+}
+
+static void ltq_rcu_w32_mask(uint32_t clr, uint32_t set, uint32_t reg_off)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&ltq_rcu_lock, flags);
+ ltq_rcu_w32((ltq_rcu_r32(reg_off) & ~(clr)) | (set), reg_off);
+ spin_unlock_irqrestore(&ltq_rcu_lock, flags);
+}
/* This function is used by the watchdog driver */
int ltq_reset_cause(void)
@@ -67,15 +138,40 @@ unsigned char ltq_boot_select(void)
return RCU_BOOT_SEL(val);
}
-/* reset / boot a gphy */
-static struct ltq_xrx200_gphy_reset {
+struct ltq_gphy_reset {
u32 rd;
u32 addr;
-} xrx200_gphy[] = {
+};
+
+/* reset / boot a gphy */
+static struct ltq_gphy_reset xrx200_gphy[] = {
{RCU_RD_GPHY0_XRX200, RCU_GFS_ADD0_XRX200},
{RCU_RD_GPHY1_XRX200, RCU_GFS_ADD1_XRX200},
};
+/* reset / boot a gphy */
+static struct ltq_gphy_reset xrx300_gphy[] = {
+ {RCU_RD_GPHY0_XRX300, RCU_GFS_ADD0_XRX300},
+ {RCU_RD_GPHY1_XRX300, RCU_GFS_ADD1_XRX300},
+ {RCU_RD_GPHY2_XRX300, RCU_GFS_ADD2_XRX300},
+};
+
+/* reset / boot a gphy */
+static struct ltq_gphy_reset xrx330_gphy[] = {
+ {RCU_RD_GPHY0_XRX330, RCU_GFS_ADD0_XRX330},
+ {RCU_RD_GPHY1_XRX330, RCU_GFS_ADD1_XRX330},
+ {RCU_RD_GPHY2_XRX330, RCU_GFS_ADD2_XRX330},
+ {RCU_RD_GPHY3_XRX330, RCU_GFS_ADD3_XRX330},
+};
+
+static void xrx200_gphy_boot_addr(struct ltq_gphy_reset *phy_regs,
+ dma_addr_t dev_addr)
+{
+ ltq_rcu_w32_mask(0, phy_regs->rd, RCU_RST_REQ);
+ ltq_rcu_w32(dev_addr, phy_regs->addr);
+ ltq_rcu_w32_mask(phy_regs->rd, 0, RCU_RST_REQ);
+}
+
/* reset and boot a gphy. these phys only exist on xrx200 SoC */
int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
{
@@ -86,23 +182,34 @@ int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
return -EINVAL;
}
- clk = clk_get_sys("1f203000.rcu", "gphy");
- if (IS_ERR(clk))
- return PTR_ERR(clk);
-
- clk_enable(clk);
-
- if (id > 1) {
- dev_err(dev, "%u is an invalid gphy id\n", id);
- return -EINVAL;
+ if (of_machine_is_compatible("lantiq,vr9")) {
+ clk = clk_get_sys("1f203000.rcu", "gphy");
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+ clk_enable(clk);
}
+
dev_info(dev, "booting GPHY%u firmware at %X\n", id, dev_addr);
- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | xrx200_gphy[id].rd,
- RCU_RST_REQ);
- ltq_rcu_w32(dev_addr, xrx200_gphy[id].addr);
- ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~xrx200_gphy[id].rd,
- RCU_RST_REQ);
+ if (of_machine_is_compatible("lantiq,vr9")) {
+ if (id >= ARRAY_SIZE(xrx200_gphy)) {
+ dev_err(dev, "%u is an invalid gphy id\n", id);
+ return -EINVAL;
+ }
+ xrx200_gphy_boot_addr(&xrx200_gphy[id], dev_addr);
+ } else if (of_machine_is_compatible("lantiq,ar10")) {
+ if (id >= ARRAY_SIZE(xrx300_gphy)) {
+ dev_err(dev, "%u is an invalid gphy id\n", id);
+ return -EINVAL;
+ }
+ xrx200_gphy_boot_addr(&xrx300_gphy[id], dev_addr);
+ } else if (of_machine_is_compatible("lantiq,grx390")) {
+ if (id >= ARRAY_SIZE(xrx330_gphy)) {
+ dev_err(dev, "%u is an invalid gphy id\n", id);
+ return -EINVAL;
+ }
+ xrx200_gphy_boot_addr(&xrx330_gphy[id], dev_addr);
+ }
return 0;
}
@@ -200,6 +307,45 @@ static void ltq_machine_power_off(void)
unreachable();
}
+static void ltq_usb_init(void)
+{
+ /* Power for USB cores 1 & 2 */
+ ltq_pmu_enable(PMU_AHBM);
+ ltq_pmu_enable(PMU_USB0);
+ ltq_pmu_enable(PMU_USB1);
+
+ ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1A) | BIT(0), RCU_CFG1A);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1B) | BIT(0), RCU_CFG1B);
+
+ /* Enable USB PHY power for cores 1 & 2 */
+ ltq_pmu_enable(PMU_USB0_P);
+ ltq_pmu_enable(PMU_USB1_P);
+
+ /* Configure cores to host mode */
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_HDSEL_BIT,
+ RCU_USB1CFG);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USB2CFG) & ~RCU_USBCFG_HDSEL_BIT,
+ RCU_USB2CFG);
+
+ /* Select DMA endianness (Host-endian: big-endian) */
+ ltq_rcu_w32((ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_SLV_END_BIT)
+ | RCU_USBCFG_HOST_END_BIT, RCU_USB1CFG);
+ ltq_rcu_w32(ltq_rcu_r32((RCU_USB2CFG) & ~RCU_USBCFG_SLV_END_BIT)
+ | RCU_USBCFG_HOST_END_BIT, RCU_USB2CFG);
+
+ /* Hard reset USB state machines */
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) | USBRESET_BIT, RCU_USBRESET);
+ udelay(50 * 1000);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) & ~USBRESET_BIT, RCU_USBRESET);
+
+ /* Soft reset USB state machines */
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
+ | USB1RESET_BIT | USB2RESET_BIT, RCU_USBRESET2);
+ udelay(50 * 1000);
+ ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
+ & ~(USB1RESET_BIT | USB2RESET_BIT), RCU_USBRESET2);
+}
+
static int __init mips_reboot_setup(void)
{
struct resource res;
@@ -216,13 +362,21 @@ static int __init mips_reboot_setup(void)
if (of_address_to_resource(ltq_rcu_np, 0, &res))
panic("Failed to get rcu memory range");
- if (request_mem_region(res.start, resource_size(&res), res.name) < 0)
+ if (!request_mem_region(res.start, resource_size(&res), res.name))
pr_err("Failed to request rcu memory");
ltq_rcu_membase = ioremap_nocache(res.start, resource_size(&res));
if (!ltq_rcu_membase)
panic("Failed to remap core memory");
+ if (of_machine_is_compatible("lantiq,ar9") ||
+ of_machine_is_compatible("lantiq,vr9"))
+ ltq_usb_init();
+
+ if (of_machine_is_compatible("lantiq,vr9"))
+ ltq_rcu_w32(ltq_rcu_r32(RCU_AHB_ENDIAN) | RCU_VR9_BE_AHB1S,
+ RCU_AHB_ENDIAN);
+
_machine_restart = ltq_machine_restart;
_machine_halt = ltq_machine_halt;
pm_power_off = ltq_machine_power_off;
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 2b15491de494..80554e8f6037 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -4,11 +4,13 @@
* by the Free Software Foundation.
*
* Copyright (C) 2011-2012 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
*/
#include <linux/ioport.h>
#include <linux/export.h>
#include <linux/clkdev.h>
+#include <linux/spinlock.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/of_address.h>
@@ -18,16 +20,18 @@
#include "../clk.h"
#include "../prom.h"
-/* clock control register */
+/* clock control register for legacy */
#define CGU_IFCCR 0x0018
#define CGU_IFCCR_VR9 0x0024
-/* system clock register */
+/* system clock register for legacy */
#define CGU_SYS 0x0010
/* pci control register */
#define CGU_PCICR 0x0034
#define CGU_PCICR_VR9 0x0038
/* ephy configuration register */
#define CGU_EPHY 0x10
+
+/* Legacy PMU register for ar9, ase, danube */
/* power control register */
#define PMU_PWDCR 0x1C
/* power status register */
@@ -41,13 +45,56 @@
/* power status register */
#define PWDSR(x) ((x) ? (PMU_PWDSR1) : (PMU_PWDSR))
+
+/* PMU register for ar10 and grx390 */
+
+/* First register set */
+#define PMU_CLK_SR 0x20 /* status */
+#define PMU_CLK_CR_A 0x24 /* Enable */
+#define PMU_CLK_CR_B 0x28 /* Disable */
+/* Second register set */
+#define PMU_CLK_SR1 0x30 /* status */
+#define PMU_CLK_CR1_A 0x34 /* Enable */
+#define PMU_CLK_CR1_B 0x38 /* Disable */
+/* Third register set */
+#define PMU_ANA_SR 0x40 /* status */
+#define PMU_ANA_CR_A 0x44 /* Enable */
+#define PMU_ANA_CR_B 0x48 /* Disable */
+
+/* Status */
+static u32 pmu_clk_sr[] = {
+ PMU_CLK_SR,
+ PMU_CLK_SR1,
+ PMU_ANA_SR,
+};
+
+/* Enable */
+static u32 pmu_clk_cr_a[] = {
+ PMU_CLK_CR_A,
+ PMU_CLK_CR1_A,
+ PMU_ANA_CR_A,
+};
+
+/* Disable */
+static u32 pmu_clk_cr_b[] = {
+ PMU_CLK_CR_B,
+ PMU_CLK_CR1_B,
+ PMU_ANA_CR_B,
+};
+
+#define PWDCR_EN_XRX(x) (pmu_clk_cr_a[(x)])
+#define PWDCR_DIS_XRX(x) (pmu_clk_cr_b[(x)])
+#define PWDSR_XRX(x) (pmu_clk_sr[(x)])
+
/* clock gates that we can en/disable */
#define PMU_USB0_P BIT(0)
+#define PMU_ASE_SDIO BIT(2) /* ASE special */
#define PMU_PCI BIT(4)
#define PMU_DMA BIT(5)
#define PMU_USB0 BIT(6)
#define PMU_ASC0 BIT(7)
#define PMU_EPHY BIT(7) /* ase */
+#define PMU_USIF BIT(7) /* from vr9 until grx390 */
#define PMU_SPI BIT(8)
#define PMU_DFE BIT(9)
#define PMU_EBU BIT(10)
@@ -56,12 +103,15 @@
#define PMU_AHBS BIT(13) /* vr9 */
#define PMU_FPI BIT(14)
#define PMU_AHBM BIT(15)
+#define PMU_SDIO BIT(16) /* danube, ar9, vr9 */
#define PMU_ASC1 BIT(17)
#define PMU_PPE_QSB BIT(18)
#define PMU_PPE_SLL01 BIT(19)
+#define PMU_DEU BIT(20)
#define PMU_PPE_TC BIT(21)
#define PMU_PPE_EMA BIT(22)
#define PMU_PPE_DPLUM BIT(23)
+#define PMU_PPE_DP BIT(23)
#define PMU_PPE_DPLUS BIT(24)
#define PMU_USB1_P BIT(26)
#define PMU_USB1 BIT(27)
@@ -70,30 +120,59 @@
#define PMU_GPHY BIT(30)
#define PMU_PCIE_CLK BIT(31)
-#define PMU1_PCIE_PHY BIT(0)
+#define PMU1_PCIE_PHY BIT(0) /* vr9-specific,moved in ar10/grx390 */
#define PMU1_PCIE_CTL BIT(1)
#define PMU1_PCIE_PDI BIT(4)
#define PMU1_PCIE_MSI BIT(5)
+#define PMU1_CKE BIT(6)
+#define PMU1_PCIE1_CTL BIT(17)
+#define PMU1_PCIE1_PDI BIT(20)
+#define PMU1_PCIE1_MSI BIT(21)
+#define PMU1_PCIE2_CTL BIT(25)
+#define PMU1_PCIE2_PDI BIT(26)
+#define PMU1_PCIE2_MSI BIT(27)
+
+#define PMU_ANALOG_USB0_P BIT(0)
+#define PMU_ANALOG_USB1_P BIT(1)
+#define PMU_ANALOG_PCIE0_P BIT(8)
+#define PMU_ANALOG_PCIE1_P BIT(9)
+#define PMU_ANALOG_PCIE2_P BIT(10)
+#define PMU_ANALOG_DSL_AFE BIT(16)
+#define PMU_ANALOG_DCDC_2V5 BIT(17)
+#define PMU_ANALOG_DCDC_1VX BIT(18)
+#define PMU_ANALOG_DCDC_1V0 BIT(19)
#define pmu_w32(x, y) ltq_w32((x), pmu_membase + (y))
#define pmu_r32(x) ltq_r32(pmu_membase + (x))
+#define XBAR_ALWAYS_LAST 0x430
+#define XBAR_FPI_BURST_EN BIT(1)
+#define XBAR_AHB_BURST_EN BIT(2)
+
+#define xbar_w32(x, y) ltq_w32((x), ltq_xbar_membase + (y))
+#define xbar_r32(x) ltq_r32(ltq_xbar_membase + (x))
+
static void __iomem *pmu_membase;
+static void __iomem *ltq_xbar_membase;
void __iomem *ltq_cgu_membase;
void __iomem *ltq_ebu_membase;
static u32 ifccr = CGU_IFCCR;
static u32 pcicr = CGU_PCICR;
+static DEFINE_SPINLOCK(g_pmu_lock);
+
/* legacy function kept alive to ease clkdev transition */
void ltq_pmu_enable(unsigned int module)
{
- int err = 1000000;
+ int retry = 1000000;
+ spin_lock(&g_pmu_lock);
pmu_w32(pmu_r32(PMU_PWDCR) & ~module, PMU_PWDCR);
- do {} while (--err && (pmu_r32(PMU_PWDSR) & module));
+ do {} while (--retry && (pmu_r32(PMU_PWDSR) & module));
+ spin_unlock(&g_pmu_lock);
- if (!err)
+ if (!retry)
panic("activating PMU module failed!");
}
EXPORT_SYMBOL(ltq_pmu_enable);
@@ -101,7 +180,15 @@ EXPORT_SYMBOL(ltq_pmu_enable);
/* legacy function kept alive to ease clkdev transition */
void ltq_pmu_disable(unsigned int module)
{
+ int retry = 1000000;
+
+ spin_lock(&g_pmu_lock);
pmu_w32(pmu_r32(PMU_PWDCR) | module, PMU_PWDCR);
+ do {} while (--retry && (!(pmu_r32(PMU_PWDSR) & module)));
+ spin_unlock(&g_pmu_lock);
+
+ if (!retry)
+ pr_warn("deactivating PMU module failed!");
}
EXPORT_SYMBOL(ltq_pmu_disable);
@@ -123,9 +210,20 @@ static int pmu_enable(struct clk *clk)
{
int retry = 1000000;
- pmu_w32(pmu_r32(PWDCR(clk->module)) & ~clk->bits,
- PWDCR(clk->module));
- do {} while (--retry && (pmu_r32(PWDSR(clk->module)) & clk->bits));
+ if (of_machine_is_compatible("lantiq,ar10")
+ || of_machine_is_compatible("lantiq,grx390")) {
+ pmu_w32(clk->bits, PWDCR_EN_XRX(clk->module));
+ do {} while (--retry &&
+ (!(pmu_r32(PWDSR_XRX(clk->module)) & clk->bits)));
+
+ } else {
+ spin_lock(&g_pmu_lock);
+ pmu_w32(pmu_r32(PWDCR(clk->module)) & ~clk->bits,
+ PWDCR(clk->module));
+ do {} while (--retry &&
+ (pmu_r32(PWDSR(clk->module)) & clk->bits));
+ spin_unlock(&g_pmu_lock);
+ }
if (!retry)
panic("activating PMU module failed!");
@@ -136,8 +234,24 @@ static int pmu_enable(struct clk *clk)
/* disable a clock gate */
static void pmu_disable(struct clk *clk)
{
- pmu_w32(pmu_r32(PWDCR(clk->module)) | clk->bits,
- PWDCR(clk->module));
+ int retry = 1000000;
+
+ if (of_machine_is_compatible("lantiq,ar10")
+ || of_machine_is_compatible("lantiq,grx390")) {
+ pmu_w32(clk->bits, PWDCR_DIS_XRX(clk->module));
+ do {} while (--retry &&
+ (pmu_r32(PWDSR_XRX(clk->module)) & clk->bits));
+ } else {
+ spin_lock(&g_pmu_lock);
+ pmu_w32(pmu_r32(PWDCR(clk->module)) | clk->bits,
+ PWDCR(clk->module));
+ do {} while (--retry &&
+ (!(pmu_r32(PWDSR(clk->module)) & clk->bits)));
+ spin_unlock(&g_pmu_lock);
+ }
+
+ if (!retry)
+ pr_warn("deactivating PMU module failed!");
}
/* the pci enable helper */
@@ -179,6 +293,16 @@ static void pci_ext_disable(struct clk *clk)
ltq_cgu_w32((1 << 31) | (1 << 30), pcicr);
}
+static void xbar_fpi_burst_disable(void)
+{
+ u32 reg;
+
+ /* bit 1 as 1 --burst; bit 1 as 0 -- single */
+ reg = xbar_r32(XBAR_ALWAYS_LAST);
+ reg &= ~XBAR_FPI_BURST_EN;
+ xbar_w32(reg, XBAR_ALWAYS_LAST);
+}
+
/* enable a clockout source */
static int clkout_enable(struct clk *clk)
{
@@ -202,8 +326,8 @@ static int clkout_enable(struct clk *clk)
}
/* manage the clock gates via PMU */
-static void clkdev_add_pmu(const char *dev, const char *con,
- unsigned int module, unsigned int bits)
+static void clkdev_add_pmu(const char *dev, const char *con, bool deactivate,
+ unsigned int module, unsigned int bits)
{
struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
@@ -214,6 +338,13 @@ static void clkdev_add_pmu(const char *dev, const char *con,
clk->disable = pmu_disable;
clk->module = module;
clk->bits = bits;
+ if (deactivate) {
+ /*
+ * Disable it during the initialization. Module should enable
+ * when used
+ */
+ pmu_disable(clk);
+ }
clkdev_add(&clk->cl);
}
@@ -312,12 +443,12 @@ void __init ltq_soc_init(void)
of_address_to_resource(np_ebu, 0, &res_ebu))
panic("Failed to get core resources");
- if ((request_mem_region(res_pmu.start, resource_size(&res_pmu),
- res_pmu.name) < 0) ||
- (request_mem_region(res_cgu.start, resource_size(&res_cgu),
- res_cgu.name) < 0) ||
- (request_mem_region(res_ebu.start, resource_size(&res_ebu),
- res_ebu.name) < 0))
+ if (!request_mem_region(res_pmu.start, resource_size(&res_pmu),
+ res_pmu.name) ||
+ !request_mem_region(res_cgu.start, resource_size(&res_cgu),
+ res_cgu.name) ||
+ !request_mem_region(res_ebu.start, resource_size(&res_ebu),
+ res_ebu.name))
pr_err("Failed to request core resources");
pmu_membase = ioremap_nocache(res_pmu.start, resource_size(&res_pmu));
@@ -328,17 +459,37 @@ void __init ltq_soc_init(void)
if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
panic("Failed to remap core resources");
+ if (of_machine_is_compatible("lantiq,vr9")) {
+ struct resource res_xbar;
+ struct device_node *np_xbar =
+ of_find_compatible_node(NULL, NULL,
+ "lantiq,xbar-xway");
+
+ if (!np_xbar)
+ panic("Failed to load xbar nodes from devicetree");
+ if (of_address_to_resource(np_pmu, 0, &res_xbar))
+ panic("Failed to get xbar resources");
+ if (request_mem_region(res_xbar.start, resource_size(&res_xbar),
+ res_xbar.name) < 0)
+ panic("Failed to get xbar resources");
+
+ ltq_xbar_membase = ioremap_nocache(res_xbar.start,
+ resource_size(&res_xbar));
+ if (!ltq_xbar_membase)
+ panic("Failed to remap xbar resources");
+ }
+
/* make sure to unprotect the memory region where flash is located */
ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
/* add our generic xway clocks */
- clkdev_add_pmu("10000000.fpi", NULL, 0, PMU_FPI);
- clkdev_add_pmu("1e100400.serial", NULL, 0, PMU_ASC0);
- clkdev_add_pmu("1e100a00.gptu", NULL, 0, PMU_GPT);
- clkdev_add_pmu("1e100bb0.stp", NULL, 0, PMU_STP);
- clkdev_add_pmu("1e104100.dma", NULL, 0, PMU_DMA);
- clkdev_add_pmu("1e100800.spi", NULL, 0, PMU_SPI);
- clkdev_add_pmu("1e105300.ebu", NULL, 0, PMU_EBU);
+ clkdev_add_pmu("10000000.fpi", NULL, 0, 0, PMU_FPI);
+ clkdev_add_pmu("1e100400.serial", NULL, 0, 0, PMU_ASC0);
+ clkdev_add_pmu("1e100a00.gptu", NULL, 1, 0, PMU_GPT);
+ clkdev_add_pmu("1e100bb0.stp", NULL, 1, 0, PMU_STP);
+ clkdev_add_pmu("1e104100.dma", NULL, 1, 0, PMU_DMA);
+ clkdev_add_pmu("1e100800.spi", NULL, 1, 0, PMU_SPI);
+ clkdev_add_pmu("1e105300.ebu", NULL, 0, 0, PMU_EBU);
clkdev_add_clkout();
/* add the soc dependent clocks */
@@ -346,14 +497,30 @@ void __init ltq_soc_init(void)
ifccr = CGU_IFCCR_VR9;
pcicr = CGU_PCICR_VR9;
} else {
- clkdev_add_pmu("1e180000.etop", NULL, 0, PMU_PPE);
+ clkdev_add_pmu("1e180000.etop", NULL, 1, 0, PMU_PPE);
}
if (!of_machine_is_compatible("lantiq,ase")) {
- clkdev_add_pmu("1e100c00.serial", NULL, 0, PMU_ASC1);
+ clkdev_add_pmu("1e100c00.serial", NULL, 0, 0, PMU_ASC1);
clkdev_add_pci();
}
+ if (of_machine_is_compatible("lantiq,grx390") ||
+ of_machine_is_compatible("lantiq,ar10")) {
+ clkdev_add_pmu("1e101000.usb", "phy", 1, 2, PMU_ANALOG_USB0_P);
+ clkdev_add_pmu("1e106000.usb", "phy", 1, 2, PMU_ANALOG_USB1_P);
+ /* rc 0 */
+ clkdev_add_pmu("1d900000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
+ clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
+ clkdev_add_pmu("1d900000.pcie", "pdi", 1, 1, PMU1_PCIE_PDI);
+ clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
+ /* rc 1 */
+ clkdev_add_pmu("19000000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE1_P);
+ clkdev_add_pmu("19000000.pcie", "msi", 1, 1, PMU1_PCIE1_MSI);
+ clkdev_add_pmu("19000000.pcie", "pdi", 1, 1, PMU1_PCIE1_PDI);
+ clkdev_add_pmu("19000000.pcie", "ctl", 1, 1, PMU1_PCIE1_CTL);
+ }
+
if (of_machine_is_compatible("lantiq,ase")) {
if (ltq_cgu_r32(CGU_SYS) & (1 << 5))
clkdev_add_static(CLOCK_266M, CLOCK_133M,
@@ -361,28 +528,84 @@ void __init ltq_soc_init(void)
else
clkdev_add_static(CLOCK_133M, CLOCK_133M,
CLOCK_133M, CLOCK_133M);
- clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY),
- clkdev_add_pmu("1e180000.etop", "ephy", 0, PMU_EPHY);
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e180000.etop", "ppe", 1, 0, PMU_PPE);
+ clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY);
+ clkdev_add_pmu("1e180000.etop", "ephy", 1, 0, PMU_EPHY);
+ clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_ASE_SDIO);
+ clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+ } else if (of_machine_is_compatible("lantiq,grx390")) {
+ clkdev_add_static(ltq_grx390_cpu_hz(), ltq_grx390_fpi_hz(),
+ ltq_grx390_fpi_hz(), ltq_grx390_pp32_hz());
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+ /* rc 2 */
+ clkdev_add_pmu("1a800000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
+ clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
+ clkdev_add_pmu("1a800000.pcie", "pdi", 1, 1, PMU1_PCIE2_PDI);
+ clkdev_add_pmu("1a800000.pcie", "ctl", 1, 1, PMU1_PCIE2_CTL);
+ clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH | PMU_PPE_DP);
+ clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+ clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+ } else if (of_machine_is_compatible("lantiq,ar10")) {
+ clkdev_add_static(ltq_ar10_cpu_hz(), ltq_ar10_fpi_hz(),
+ ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+ clkdev_add_pmu("1e108000.eth", NULL, 1, 0, PMU_SWITCH |
+ PMU_PPE_DP | PMU_PPE_TC);
+ clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+ clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+ clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+ clkdev_add_pmu("1e116000.mei", "afe", 1, 2, PMU_ANALOG_DSL_AFE);
+ clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
} else if (of_machine_is_compatible("lantiq,vr9")) {
clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
- clkdev_add_pmu("1d900000.pcie", "phy", 1, PMU1_PCIE_PHY);
- clkdev_add_pmu("1d900000.pcie", "bus", 0, PMU_PCIE_CLK);
- clkdev_add_pmu("1d900000.pcie", "msi", 1, PMU1_PCIE_MSI);
- clkdev_add_pmu("1d900000.pcie", "pdi", 1, PMU1_PCIE_PDI);
- clkdev_add_pmu("1d900000.pcie", "ctl", 1, PMU1_PCIE_CTL);
- clkdev_add_pmu("1d900000.pcie", "ahb", 0, PMU_AHBM | PMU_AHBS);
- clkdev_add_pmu("1e108000.eth", NULL, 0,
+ clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0 | PMU_AHBM);
+ clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
+ clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1 | PMU_AHBM);
+ clkdev_add_pmu("1d900000.pcie", "phy", 1, 1, PMU1_PCIE_PHY);
+ clkdev_add_pmu("1d900000.pcie", "bus", 1, 0, PMU_PCIE_CLK);
+ clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
+ clkdev_add_pmu("1d900000.pcie", "pdi", 1, 1, PMU1_PCIE_PDI);
+ clkdev_add_pmu("1d900000.pcie", "ctl", 1, 1, PMU1_PCIE_CTL);
+ clkdev_add_pmu(NULL, "ahb", 1, 0, PMU_AHBM | PMU_AHBS);
+
+ clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
+ clkdev_add_pmu("1e108000.eth", NULL, 1, 0,
PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
PMU_PPE_QSB | PMU_PPE_TOP);
- clkdev_add_pmu("1f203000.rcu", "gphy", 0, PMU_GPHY);
+ clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+ clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+ clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+ clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
} else if (of_machine_is_compatible("lantiq,ar9")) {
clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
ltq_ar9_fpi_hz(), CLOCK_250M);
- clkdev_add_pmu("1e180000.etop", "switch", 0, PMU_SWITCH);
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+ clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
+ clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
+ clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+ clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+ clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+ clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
} else {
clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
+ clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
+ clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+ clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
+ clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
+ clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
+ clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
}
+
+ if (of_machine_is_compatible("lantiq,vr9"))
+ xbar_fpi_burst_disable();
}
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index 1e9e900cd3c3..0344e575f522 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -15,4 +15,4 @@ obj-$(CONFIG_CPU_R3000) += r3k_dump_tlb.o
obj-$(CONFIG_CPU_TX39XX) += r3k_dump_tlb.o
# libgcc-style stuff needed in the kernel
-obj-y += ashldi3.o ashrdi3.o cmpdi2.o lshrdi3.o ucmpdi2.o
+obj-y += ashldi3.o ashrdi3.o bswapsi.o bswapdi.o cmpdi2.o lshrdi3.o ucmpdi2.o
diff --git a/arch/mips/lib/bswapdi.c b/arch/mips/lib/bswapdi.c
new file mode 100644
index 000000000000..77e5f9c1f005
--- /dev/null
+++ b/arch/mips/lib/bswapdi.c
@@ -0,0 +1,15 @@
+#include <linux/module.h>
+
+unsigned long long __bswapdi2(unsigned long long u)
+{
+ return (((u) & 0xff00000000000000ull) >> 56) |
+ (((u) & 0x00ff000000000000ull) >> 40) |
+ (((u) & 0x0000ff0000000000ull) >> 24) |
+ (((u) & 0x000000ff00000000ull) >> 8) |
+ (((u) & 0x00000000ff000000ull) << 8) |
+ (((u) & 0x0000000000ff0000ull) << 24) |
+ (((u) & 0x000000000000ff00ull) << 40) |
+ (((u) & 0x00000000000000ffull) << 56);
+}
+
+EXPORT_SYMBOL(__bswapdi2);
diff --git a/arch/mips/lib/bswapsi.c b/arch/mips/lib/bswapsi.c
new file mode 100644
index 000000000000..2b302ff121d2
--- /dev/null
+++ b/arch/mips/lib/bswapsi.c
@@ -0,0 +1,11 @@
+#include <linux/module.h>
+
+unsigned int __bswapsi2(unsigned int u)
+{
+ return (((u) & 0xff000000) >> 24) |
+ (((u) & 0x00ff0000) >> 8) |
+ (((u) & 0x0000ff00) << 8) |
+ (((u) & 0x000000ff) << 24);
+}
+
+EXPORT_SYMBOL(__bswapsi2);
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index 497912b38d8e..8e6e292675b2 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -120,11 +120,6 @@ config RS780_HPET
If unsure, say Yes.
-config LOONGSON_SUSPEND
- bool
- default y
- depends on CPU_SUPPORTS_CPUFREQ && SUSPEND
-
config LOONGSON_UART_BASE
bool
default y
diff --git a/arch/mips/loongson64/common/Makefile b/arch/mips/loongson64/common/Makefile
index f2e8153e44f5..074d9cb15cd2 100644
--- a/arch/mips/loongson64/common/Makefile
+++ b/arch/mips/loongson64/common/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_CS5536) += cs5536/
# Suspend Support
#
-obj-$(CONFIG_LOONGSON_SUSPEND) += pm.o
+obj-$(CONFIG_SUSPEND) += pm.o
#
# Big Memory (SWIOTLB) Support
diff --git a/arch/mips/loongson64/lemote-2f/Makefile b/arch/mips/loongson64/lemote-2f/Makefile
index 4f9eaa328a16..08b8abcbfef5 100644
--- a/arch/mips/loongson64/lemote-2f/Makefile
+++ b/arch/mips/loongson64/lemote-2f/Makefile
@@ -8,4 +8,4 @@ obj-y += clock.o machtype.o irq.o reset.o ec_kb3310b.o
# Suspend Support
#
-obj-$(CONFIG_LOONGSON_SUSPEND) += pm.o
+obj-$(CONFIG_SUSPEND) += pm.o
diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c
index 506a67a98cdf..be650ed7db59 100644
--- a/arch/mips/math-emu/me-debugfs.c
+++ b/arch/mips/math-emu/me-debugfs.c
@@ -4,6 +4,7 @@
#include <linux/init.h>
#include <linux/percpu.h>
#include <linux/types.h>
+#include <asm/debug.h>
#include <asm/fpu_emulator.h>
#include <asm/local.h>
@@ -27,7 +28,6 @@ static int fpuemu_stat_get(void *data, u64 *val)
}
DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n");
-extern struct dentry *mips_debugfs_dir;
static int __init debugfs_fpuemu(void)
{
struct dentry *d, *dir;
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index 67ede4ef9b8d..b4c64bd3f723 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_IP22_CPU_SCACHE) += sc-ip22.o
obj-$(CONFIG_R5000_CPU_SCACHE) += sc-r5k.o
obj-$(CONFIG_RM7000_CPU_SCACHE) += sc-rm7k.o
obj-$(CONFIG_MIPS_CPU_SCACHE) += sc-mips.o
+obj-$(CONFIG_SCACHE_DEBUGFS) += sc-debugfs.o
diff --git a/arch/mips/mm/sc-debugfs.c b/arch/mips/mm/sc-debugfs.c
new file mode 100644
index 000000000000..5eefe3281b24
--- /dev/null
+++ b/arch/mips/mm/sc-debugfs.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/bcache.h>
+#include <asm/debug.h>
+#include <asm/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/init.h>
+
+static ssize_t sc_prefetch_read(struct file *file, char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ bool enabled = bc_prefetch_is_enabled();
+ char buf[3];
+
+ buf[0] = enabled ? 'Y' : 'N';
+ buf[1] = '\n';
+ buf[2] = 0;
+
+ return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t sc_prefetch_write(struct file *file,
+ const char __user *user_buf,
+ size_t count, loff_t *ppos)
+{
+ char buf[32];
+ ssize_t buf_size;
+ bool enabled;
+ int err;
+
+ buf_size = min(count, sizeof(buf) - 1);
+ if (copy_from_user(buf, user_buf, buf_size))
+ return -EFAULT;
+
+ buf[buf_size] = '\0';
+ err = strtobool(buf, &enabled);
+ if (err)
+ return err;
+
+ if (enabled)
+ bc_prefetch_enable();
+ else
+ bc_prefetch_disable();
+
+ return count;
+}
+
+static const struct file_operations sc_prefetch_fops = {
+ .open = simple_open,
+ .llseek = default_llseek,
+ .read = sc_prefetch_read,
+ .write = sc_prefetch_write,
+};
+
+static int __init sc_debugfs_init(void)
+{
+ struct dentry *dir, *file;
+
+ if (!mips_debugfs_dir)
+ return -ENODEV;
+
+ dir = debugfs_create_dir("l2cache", mips_debugfs_dir);
+ if (IS_ERR(dir))
+ return PTR_ERR(dir);
+
+ file = debugfs_create_file("prefetch", S_IRUGO | S_IWUSR, dir,
+ NULL, &sc_prefetch_fops);
+ if (IS_ERR(file))
+ return PTR_ERR(file);
+
+ return 0;
+}
+late_initcall(sc_debugfs_init);
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 53ea8391f9bb..3bd0597d9c3d 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -51,11 +51,69 @@ static void mips_sc_disable(void)
/* L2 cache is permanently enabled */
}
+static void mips_sc_prefetch_enable(void)
+{
+ unsigned long pftctl;
+
+ if (mips_cm_revision() < CM_REV_CM2_5)
+ return;
+
+ /*
+ * If there is one or more L2 prefetch unit present then enable
+ * prefetching for both code & data, for all ports.
+ */
+ pftctl = read_gcr_l2_pft_control();
+ if (pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK) {
+ pftctl &= ~CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
+ pftctl |= PAGE_MASK & CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
+ pftctl |= CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
+ write_gcr_l2_pft_control(pftctl);
+
+ pftctl = read_gcr_l2_pft_control_b();
+ pftctl |= CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
+ pftctl |= CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
+ write_gcr_l2_pft_control_b(pftctl);
+ }
+}
+
+static void mips_sc_prefetch_disable(void)
+{
+ unsigned long pftctl;
+
+ if (mips_cm_revision() < CM_REV_CM2_5)
+ return;
+
+ pftctl = read_gcr_l2_pft_control();
+ pftctl &= ~CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
+ write_gcr_l2_pft_control(pftctl);
+
+ pftctl = read_gcr_l2_pft_control_b();
+ pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
+ pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
+ write_gcr_l2_pft_control_b(pftctl);
+}
+
+static bool mips_sc_prefetch_is_enabled(void)
+{
+ unsigned long pftctl;
+
+ if (mips_cm_revision() < CM_REV_CM2_5)
+ return false;
+
+ pftctl = read_gcr_l2_pft_control();
+ if (!(pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK))
+ return false;
+ return !!(pftctl & CM_GCR_L2_PFT_CONTROL_PFTEN_MSK);
+}
+
static struct bcache_ops mips_sc_ops = {
.bc_enable = mips_sc_enable,
.bc_disable = mips_sc_disable,
.bc_wback_inv = mips_sc_wback_inv,
- .bc_inv = mips_sc_inv
+ .bc_inv = mips_sc_inv,
+ .bc_prefetch_enable = mips_sc_prefetch_enable,
+ .bc_prefetch_disable = mips_sc_prefetch_disable,
+ .bc_prefetch_is_enabled = mips_sc_prefetch_is_enabled,
};
/*
@@ -162,13 +220,13 @@ static inline int __init mips_sc_probe(void)
return 0;
tmp = (config2 >> 8) & 0x0f;
- if (0 <= tmp && tmp <= 7)
+ if (tmp <= 7)
c->scache.sets = 64 << tmp;
else
return 0;
tmp = (config2 >> 0) & 0x0f;
- if (0 <= tmp && tmp <= 7)
+ if (tmp <= 7)
c->scache.ways = tmp + 1;
else
return 0;
@@ -186,6 +244,7 @@ int mips_sc_init(void)
int found = mips_sc_probe();
if (found) {
mips_sc_enable();
+ mips_sc_prefetch_enable();
bcops = &mips_sc_ops;
}
return found;
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 323d1d302f2b..32e0be27673f 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -311,6 +311,7 @@ static struct uasm_label labels[128];
static struct uasm_reloc relocs[128];
static int check_for_high_segbits;
+static bool fill_includes_sw_bits;
static unsigned int kscratch_used_mask;
@@ -630,8 +631,14 @@ static void build_tlb_write_entry(u32 **p, struct uasm_label **l,
static __maybe_unused void build_convert_pte_to_entrylo(u32 **p,
unsigned int reg)
{
- if (cpu_has_rixi) {
- UASM_i_ROTR(p, reg, reg, ilog2(_PAGE_GLOBAL));
+ if (cpu_has_rixi && _PAGE_NO_EXEC) {
+ if (fill_includes_sw_bits) {
+ UASM_i_ROTR(p, reg, reg, ilog2(_PAGE_GLOBAL));
+ } else {
+ UASM_i_SRL(p, reg, reg, ilog2(_PAGE_NO_EXEC));
+ UASM_i_ROTR(p, reg, reg,
+ ilog2(_PAGE_GLOBAL) - ilog2(_PAGE_NO_EXEC));
+ }
} else {
#ifdef CONFIG_PHYS_ADDR_T_64BIT
uasm_i_dsrl_safe(p, reg, reg, ilog2(_PAGE_GLOBAL));
@@ -1005,21 +1012,7 @@ static void build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep)
* 64bit address support (36bit on a 32bit CPU) in a 32bit
* Kernel is a special case. Only a few CPUs use it.
*/
-#ifdef CONFIG_PHYS_ADDR_T_64BIT
- if (cpu_has_64bits) {
- uasm_i_ld(p, tmp, 0, ptep); /* get even pte */
- uasm_i_ld(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
- if (cpu_has_rixi) {
- UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL));
- UASM_i_MTC0(p, tmp, C0_ENTRYLO0); /* load it */
- UASM_i_ROTR(p, ptep, ptep, ilog2(_PAGE_GLOBAL));
- } else {
- uasm_i_dsrl_safe(p, tmp, tmp, ilog2(_PAGE_GLOBAL)); /* convert to entrylo0 */
- UASM_i_MTC0(p, tmp, C0_ENTRYLO0); /* load it */
- uasm_i_dsrl_safe(p, ptep, ptep, ilog2(_PAGE_GLOBAL)); /* convert to entrylo1 */
- }
- UASM_i_MTC0(p, ptep, C0_ENTRYLO1); /* load it */
- } else {
+ if (config_enabled(CONFIG_PHYS_ADDR_T_64BIT) && !cpu_has_64bits) {
int pte_off_even = sizeof(pte_t) / 2;
int pte_off_odd = pte_off_even + sizeof(pte_t);
#ifdef CONFIG_XPA
@@ -1043,31 +1036,23 @@ static void build_update_entries(u32 **p, unsigned int tmp, unsigned int ptep)
uasm_i_mthc0(p, tmp, C0_ENTRYLO0);
uasm_i_mthc0(p, ptep, C0_ENTRYLO1);
#endif
+ return;
}
-#else
+
UASM_i_LW(p, tmp, 0, ptep); /* get even pte */
UASM_i_LW(p, ptep, sizeof(pte_t), ptep); /* get odd pte */
if (r45k_bvahwbug())
build_tlb_probe_entry(p);
- if (cpu_has_rixi) {
- UASM_i_ROTR(p, tmp, tmp, ilog2(_PAGE_GLOBAL));
- if (r4k_250MHZhwbug())
- UASM_i_MTC0(p, 0, C0_ENTRYLO0);
- UASM_i_MTC0(p, tmp, C0_ENTRYLO0); /* load it */
- UASM_i_ROTR(p, ptep, ptep, ilog2(_PAGE_GLOBAL));
- } else {
- UASM_i_SRL(p, tmp, tmp, ilog2(_PAGE_GLOBAL)); /* convert to entrylo0 */
- if (r4k_250MHZhwbug())
- UASM_i_MTC0(p, 0, C0_ENTRYLO0);
- UASM_i_MTC0(p, tmp, C0_ENTRYLO0); /* load it */
- UASM_i_SRL(p, ptep, ptep, ilog2(_PAGE_GLOBAL)); /* convert to entrylo1 */
- if (r45k_bvahwbug())
- uasm_i_mfc0(p, tmp, C0_INDEX);
- }
+ build_convert_pte_to_entrylo(p, tmp);
+ if (r4k_250MHZhwbug())
+ UASM_i_MTC0(p, 0, C0_ENTRYLO0);
+ UASM_i_MTC0(p, tmp, C0_ENTRYLO0); /* load it */
+ build_convert_pte_to_entrylo(p, ptep);
+ if (r45k_bvahwbug())
+ uasm_i_mfc0(p, tmp, C0_INDEX);
if (r4k_250MHZhwbug())
UASM_i_MTC0(p, 0, C0_ENTRYLO1);
UASM_i_MTC0(p, ptep, C0_ENTRYLO1); /* load it */
-#endif
}
struct mips_huge_tlb_info {
@@ -2299,6 +2284,10 @@ static void config_htw_params(void)
/* re-initialize the PTI field including the even/odd bit */
pwfield &= ~MIPS_PWFIELD_PTI_MASK;
pwfield |= PAGE_SHIFT << MIPS_PWFIELD_PTI_SHIFT;
+ if (CONFIG_PGTABLE_LEVELS >= 3) {
+ pwfield &= ~MIPS_PWFIELD_MDI_MASK;
+ pwfield |= PMD_SHIFT << MIPS_PWFIELD_MDI_SHIFT;
+ }
/* Set the PTEI right shift */
ptei = _PAGE_GLOBAL_SHIFT << MIPS_PWFIELD_PTEI_SHIFT;
pwfield |= ptei;
@@ -2320,9 +2309,11 @@ static void config_htw_params(void)
pwsize = ilog2(PTRS_PER_PGD) << MIPS_PWSIZE_GDW_SHIFT;
pwsize |= ilog2(PTRS_PER_PTE) << MIPS_PWSIZE_PTW_SHIFT;
+ if (CONFIG_PGTABLE_LEVELS >= 3)
+ pwsize |= ilog2(PTRS_PER_PMD) << MIPS_PWSIZE_MDW_SHIFT;
/* If XPA has been enabled, PTEs are 64-bit in size. */
- if (read_c0_pagegrain() & PG_ELPA)
+ if (config_enabled(CONFIG_64BITS) || (read_c0_pagegrain() & PG_ELPA))
pwsize |= 1;
write_c0_pwsize(pwsize);
@@ -2360,6 +2351,41 @@ static void config_xpa_params(void)
#endif
}
+static void check_pabits(void)
+{
+ unsigned long entry;
+ unsigned pabits, fillbits;
+
+ if (!cpu_has_rixi || !_PAGE_NO_EXEC) {
+ /*
+ * We'll only be making use of the fact that we can rotate bits
+ * into the fill if the CPU supports RIXI, so don't bother
+ * probing this for CPUs which don't.
+ */
+ return;
+ }
+
+ write_c0_entrylo0(~0ul);
+ back_to_back_c0_hazard();
+ entry = read_c0_entrylo0();
+
+ /* clear all non-PFN bits */
+ entry &= ~((1 << MIPS_ENTRYLO_PFN_SHIFT) - 1);
+ entry &= ~(MIPS_ENTRYLO_RI | MIPS_ENTRYLO_XI);
+
+ /* find a lower bound on PABITS, and upper bound on fill bits */
+ pabits = fls_long(entry) + 6;
+ fillbits = max_t(int, (int)BITS_PER_LONG - pabits, 0);
+
+ /* minus the RI & XI bits */
+ fillbits -= min_t(unsigned, fillbits, 2);
+
+ if (fillbits >= ilog2(_PAGE_NO_EXEC))
+ fill_includes_sw_bits = true;
+
+ pr_debug("Entry* registers contain %u fill bits\n", fillbits);
+}
+
void build_tlb_refill_handler(void)
{
/*
@@ -2370,6 +2396,7 @@ void build_tlb_refill_handler(void)
static int run_once = 0;
output_pgtable_bits_defines();
+ check_pabits();
#ifdef CONFIG_64BIT
check_for_high_segbits = current_cpu_data.vmbits > (PGDIR_SHIFT + PGD_ORDER + PAGE_SHIFT - 3);
diff --git a/arch/mips/mti-malta/Makefile b/arch/mips/mti-malta/Makefile
index ea35587a5c29..5827af77c18e 100644
--- a/arch/mips/mti-malta/Makefile
+++ b/arch/mips/mti-malta/Makefile
@@ -5,9 +5,18 @@
# Copyright (C) 2008 Wind River Systems, Inc.
# written by Ralf Baechle <ralf@linux-mips.org>
#
-obj-y := malta-display.o malta-dt.o malta-init.o \
- malta-int.o malta-memory.o malta-platform.o \
- malta-reset.o malta-setup.o malta-time.o
+obj-y += malta-display.o
+obj-y += malta-dt.o
+obj-y += malta-dtshim.o
+obj-y += malta-init.o
+obj-y += malta-int.o
+obj-y += malta-memory.o
+obj-y += malta-platform.o
+obj-y += malta-reset.o
+obj-y += malta-setup.o
+obj-y += malta-time.o
obj-$(CONFIG_MIPS_CMP) += malta-amon.o
obj-$(CONFIG_MIPS_MALTA_PM) += malta-pm.o
+
+CFLAGS_malta-dtshim.o = -I$(src)/../../../scripts/dtc/libfdt
diff --git a/arch/mips/mti-malta/malta-dtshim.c b/arch/mips/mti-malta/malta-dtshim.c
new file mode 100644
index 000000000000..f7133efc5843
--- /dev/null
+++ b/arch/mips/mti-malta/malta-dtshim.c
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/bug.h>
+#include <linux/kernel.h>
+#include <linux/libfdt.h>
+#include <linux/of_fdt.h>
+#include <linux/sizes.h>
+#include <asm/bootinfo.h>
+#include <asm/fw/fw.h>
+#include <asm/page.h>
+
+static unsigned char fdt_buf[16 << 10] __initdata;
+
+/* determined physical memory size, not overridden by command line args */
+extern unsigned long physical_memsize;
+
+#define MAX_MEM_ARRAY_ENTRIES 1
+
+static unsigned __init gen_fdt_mem_array(__be32 *mem_array, unsigned long size)
+{
+ unsigned long size_preio;
+ unsigned entries;
+
+ entries = 1;
+ mem_array[0] = cpu_to_be32(PHYS_OFFSET);
+ if (config_enabled(CONFIG_EVA)) {
+ /*
+ * The current Malta EVA configuration is "special" in that it
+ * always makes use of addresses in the upper half of the 32 bit
+ * physical address map, which gives it a contiguous region of
+ * DDR but limits it to 2GB.
+ */
+ mem_array[1] = cpu_to_be32(size);
+ } else {
+ size_preio = min_t(unsigned long, size, SZ_256M);
+ mem_array[1] = cpu_to_be32(size_preio);
+ }
+
+ BUG_ON(entries > MAX_MEM_ARRAY_ENTRIES);
+ return entries;
+}
+
+static void __init append_memory(void *fdt, int root_off)
+{
+ __be32 mem_array[2 * MAX_MEM_ARRAY_ENTRIES];
+ unsigned long memsize;
+ unsigned mem_entries;
+ int i, err, mem_off;
+ char *var, param_name[10], *var_names[] = {
+ "ememsize", "memsize",
+ };
+
+ /* if a memory node already exists, leave it alone */
+ mem_off = fdt_path_offset(fdt, "/memory");
+ if (mem_off >= 0)
+ return;
+
+ /* find memory size from the bootloader environment */
+ for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+ var = fw_getenv(var_names[i]);
+ if (!var)
+ continue;
+
+ err = kstrtoul(var, 0, &physical_memsize);
+ if (!err)
+ break;
+
+ pr_warn("Failed to read the '%s' env variable '%s'\n",
+ var_names[i], var);
+ }
+
+ if (!physical_memsize) {
+ pr_warn("The bootloader didn't provide memsize: defaulting to 32MB\n");
+ physical_memsize = 32 << 20;
+ }
+
+ if (config_enabled(CONFIG_CPU_BIG_ENDIAN)) {
+ /*
+ * SOC-it swaps, or perhaps doesn't swap, when DMA'ing
+ * the last word of physical memory.
+ */
+ physical_memsize -= PAGE_SIZE;
+ }
+
+ /* default to using all available RAM */
+ memsize = physical_memsize;
+
+ /* allow the user to override the usable memory */
+ for (i = 0; i < ARRAY_SIZE(var_names); i++) {
+ snprintf(param_name, sizeof(param_name), "%s=", var_names[i]);
+ var = strstr(arcs_cmdline, param_name);
+ if (!var)
+ continue;
+
+ memsize = memparse(var + strlen(param_name), NULL);
+ }
+
+ /* if the user says there's more RAM than we thought, believe them */
+ physical_memsize = max_t(unsigned long, physical_memsize, memsize);
+
+ /* append memory to the DT */
+ mem_off = fdt_add_subnode(fdt, root_off, "memory");
+ if (mem_off < 0)
+ panic("Unable to add memory node to DT: %d", mem_off);
+
+ err = fdt_setprop_string(fdt, mem_off, "device_type", "memory");
+ if (err)
+ panic("Unable to set memory node device_type: %d", err);
+
+ mem_entries = gen_fdt_mem_array(mem_array, physical_memsize);
+ err = fdt_setprop(fdt, mem_off, "reg", mem_array,
+ mem_entries * 2 * sizeof(mem_array[0]));
+ if (err)
+ panic("Unable to set memory regs property: %d", err);
+
+ mem_entries = gen_fdt_mem_array(mem_array, memsize);
+ err = fdt_setprop(fdt, mem_off, "linux,usable-memory", mem_array,
+ mem_entries * 2 * sizeof(mem_array[0]));
+ if (err)
+ panic("Unable to set linux,usable-memory property: %d", err);
+}
+
+void __init *malta_dt_shim(void *fdt)
+{
+ int root_off, len, err;
+ const char *compat;
+
+ if (fdt_check_header(fdt))
+ panic("Corrupt DT");
+
+ err = fdt_open_into(fdt, fdt_buf, sizeof(fdt_buf));
+ if (err)
+ panic("Unable to open FDT: %d", err);
+
+ root_off = fdt_path_offset(fdt_buf, "/");
+ if (root_off < 0)
+ panic("No / node in DT");
+
+ compat = fdt_getprop(fdt_buf, root_off, "compatible", &len);
+ if (!compat)
+ panic("No root compatible property in DT: %d", len);
+
+ /* if this isn't Malta, leave the DT alone */
+ if (strncmp(compat, "mti,malta", len))
+ return fdt;
+
+ append_memory(fdt_buf, root_off);
+
+ err = fdt_pack(fdt_buf);
+ if (err)
+ panic("Unable to pack FDT: %d\n", err);
+
+ return fdt_buf;
+}
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 53c24784a2f7..571148c5fd0b 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -302,6 +302,7 @@ mips_pci_controller:
return;
if (!register_vsmp_smp_ops())
return;
+ register_up_smp_ops();
}
void platform_early_l2_init(void)
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
index dadeb8379182..d5f8dae6a797 100644
--- a/arch/mips/mti-malta/malta-memory.c
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -21,147 +21,20 @@
#include <asm/sections.h>
#include <asm/fw/fw.h>
-static fw_memblock_t mdesc[FW_MAX_MEMBLOCKS];
-
/* determined physical memory size, not overridden by command line args */
unsigned long physical_memsize = 0L;
-fw_memblock_t * __init fw_getmdesc(int eva)
-{
- char *memsize_str, *ememsize_str = NULL, *ptr;
- unsigned long memsize = 0, ememsize = 0;
- static char cmdline[COMMAND_LINE_SIZE] __initdata;
- int tmp;
-
- /* otherwise look in the environment */
-
- memsize_str = fw_getenv("memsize");
- if (memsize_str) {
- tmp = kstrtoul(memsize_str, 0, &memsize);
- if (tmp)
- pr_warn("Failed to read the 'memsize' env variable.\n");
- }
- if (eva) {
- /* Look for ememsize for EVA */
- ememsize_str = fw_getenv("ememsize");
- if (ememsize_str) {
- tmp = kstrtoul(ememsize_str, 0, &ememsize);
- if (tmp)
- pr_warn("Failed to read the 'ememsize' env variable.\n");
- }
- }
- if (!memsize && !ememsize) {
- pr_warn("memsize not set in YAMON, set to default (32Mb)\n");
- physical_memsize = 0x02000000;
- } else {
- if (memsize > (256 << 20)) { /* memsize should be capped to 256M */
- pr_warn("Unsupported memsize value (0x%lx) detected! "
- "Using 0x10000000 (256M) instead\n",
- memsize);
- memsize = 256 << 20;
- }
- /* If ememsize is set, then set physical_memsize to that */
- physical_memsize = ememsize ? : memsize;
- }
-
-#ifdef CONFIG_CPU_BIG_ENDIAN
- /* SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
- word of physical memory */
- physical_memsize -= PAGE_SIZE;
-#endif
-
- /* Check the command line for a memsize directive that overrides
- the physical/default amount */
- strcpy(cmdline, arcs_cmdline);
- ptr = strstr(cmdline, "memsize=");
- if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
- ptr = strstr(ptr, " memsize=");
- /* And now look for ememsize */
- if (eva) {
- ptr = strstr(cmdline, "ememsize=");
- if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
- ptr = strstr(ptr, " ememsize=");
- }
-
- if (ptr)
- memsize = memparse(ptr + 8 + (eva ? 1 : 0), &ptr);
- else
- memsize = physical_memsize;
-
- /* Last 64K for HIGHMEM arithmetics */
- if (memsize > 0x7fff0000)
- memsize = 0x7fff0000;
-
- memset(mdesc, 0, sizeof(mdesc));
-
- mdesc[0].type = fw_dontuse;
- mdesc[0].base = PHYS_OFFSET;
- mdesc[0].size = 0x00001000;
-
- mdesc[1].type = fw_code;
- mdesc[1].base = mdesc[0].base + 0x00001000UL;
- mdesc[1].size = 0x000ef000;
-
- /*
- * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the
- * south bridge and PCI access always forwarded to the ISA Bus and
- * BIOSCS# is always generated.
- * This mean that this area can't be used as DMA memory for PCI
- * devices.
- */
- mdesc[2].type = fw_dontuse;
- mdesc[2].base = mdesc[0].base + 0x000f0000UL;
- mdesc[2].size = 0x00010000;
-
- mdesc[3].type = fw_dontuse;
- mdesc[3].base = mdesc[0].base + 0x00100000UL;
- mdesc[3].size = CPHYSADDR(PFN_ALIGN((unsigned long)&_end)) -
- 0x00100000UL;
-
- mdesc[4].type = fw_free;
- mdesc[4].base = mdesc[0].base + CPHYSADDR(PFN_ALIGN(&_end));
- mdesc[4].size = memsize - CPHYSADDR(mdesc[4].base);
-
- return &mdesc[0];
-}
-
static void free_init_pages_eva_malta(void *begin, void *end)
{
free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
__pa_symbol((unsigned long *)end));
}
-static int __init fw_memtype_classify(unsigned int type)
-{
- switch (type) {
- case fw_free:
- return BOOT_MEM_RAM;
- case fw_code:
- return BOOT_MEM_ROM_DATA;
- default:
- return BOOT_MEM_RESERVED;
- }
-}
-
void __init fw_meminit(void)
{
- fw_memblock_t *p;
-
- p = fw_getmdesc(config_enabled(CONFIG_EVA));
- free_init_pages_eva = (config_enabled(CONFIG_EVA) ?
- free_init_pages_eva_malta : NULL);
+ bool eva = config_enabled(CONFIG_EVA);
- while (p->size) {
- long type;
- unsigned long base, size;
-
- type = fw_memtype_classify(p->type);
- base = p->base;
- size = p->size;
-
- add_memory_region(base, size, type);
- p++;
- }
+ free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
}
void __init prom_free_prom_memory(void)
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index 9d1e7f5ec36c..4740c82fb97a 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -27,6 +27,7 @@
#include <linux/time.h>
#include <asm/fw/fw.h>
+#include <asm/mach-malta/malta-dtshim.h>
#include <asm/mips-cm.h>
#include <asm/mips-boards/generic.h>
#include <asm/mips-boards/malta.h>
@@ -250,8 +251,10 @@ static void __init bonito_quirks_setup(void)
void __init plat_mem_setup(void)
{
unsigned int i;
+ void *fdt = __dtb_start;
- __dt_setup_arch(__dtb_start);
+ fdt = malta_dt_shim(fdt);
+ __dt_setup_arch(fdt);
if (config_enabled(CONFIG_EVA))
/* EVA has already been configured in mach-malta/kernel-init.h */
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index a625bdb6d6aa..856a6e6d296e 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -87,7 +87,6 @@ void __init *xlp_dt_init(void *fdtp)
void __init xlp_early_init_devtree(void)
{
__dt_setup_arch(xlp_fdt_blob);
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
}
void __init device_tree_init(void)
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index ed6732f9aa87..53a42b07008b 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -432,8 +432,7 @@ static int rt3883_pci_probe(struct platform_device *pdev)
/* find the interrupt controller child node */
for_each_child_of_node(np, child) {
- if (of_get_property(child, "interrupt-controller", NULL) &&
- of_node_get(child)) {
+ if (of_get_property(child, "interrupt-controller", NULL)) {
rpc->intc_of_node = child;
break;
}
@@ -449,8 +448,7 @@ static int rt3883_pci_probe(struct platform_device *pdev)
/* find the PCI host bridge child node */
for_each_child_of_node(np, child) {
if (child->type &&
- of_node_cmp(child->type, "pci") == 0 &&
- of_node_get(child)) {
+ of_node_cmp(child->type, "pci") == 0) {
rpc->pci_controller.of_node = child;
break;
}
diff --git a/arch/mips/pistachio/init.c b/arch/mips/pistachio/init.c
index 8bd8ebb20a72..96ba2cc9ad3e 100644
--- a/arch/mips/pistachio/init.c
+++ b/arch/mips/pistachio/init.c
@@ -58,7 +58,6 @@ void __init plat_mem_setup(void)
panic("Device-tree not present");
__dt_setup_arch((void *)fw_arg1);
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
plat_setup_iocoherency();
}
diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c
index a8e70a9f274b..e46f91f971c5 100644
--- a/arch/mips/ralink/cevt-rt3352.c
+++ b/arch/mips/ralink/cevt-rt3352.c
@@ -48,7 +48,7 @@ static int systick_next_event(unsigned long delta,
sdev = container_of(evt, struct systick_device, dev);
count = ioread32(sdev->membase + SYSTICK_COUNT);
count = (count + delta) % SYSTICK_FREQ;
- iowrite32(count + delta, sdev->membase + SYSTICK_COMPARE);
+ iowrite32(count, sdev->membase + SYSTICK_COMPARE);
return 0;
}
diff --git a/arch/mips/ralink/early_printk.c b/arch/mips/ralink/early_printk.c
index 255d695ec8c6..3c59ffe5f5f5 100644
--- a/arch/mips/ralink/early_printk.c
+++ b/arch/mips/ralink/early_printk.c
@@ -25,11 +25,13 @@
#define MT7628_CHIP_NAME1 0x20203832
#define UART_REG_TX 0x04
+#define UART_REG_LCR 0x0c
#define UART_REG_LSR 0x14
#define UART_REG_LSR_RT2880 0x1c
static __iomem void *uart_membase = (__iomem void *) KSEG1ADDR(EARLY_UART_BASE);
static __iomem void *chipid_membase = (__iomem void *) KSEG1ADDR(CHIPID_BASE);
+static int init_complete;
static inline void uart_w32(u32 val, unsigned reg)
{
@@ -47,8 +49,32 @@ static inline int soc_is_mt7628(void)
(__raw_readl(chipid_membase) == MT7628_CHIP_NAME1);
}
+static void find_uart_base(void)
+{
+ int i;
+
+ if (!soc_is_mt7628())
+ return;
+
+ for (i = 0; i < 3; i++) {
+ u32 reg = uart_r32(UART_REG_LCR + (0x100 * i));
+
+ if (!reg)
+ continue;
+
+ uart_membase = (__iomem void *) KSEG1ADDR(EARLY_UART_BASE +
+ (0x100 * i));
+ break;
+ }
+}
+
void prom_putchar(unsigned char ch)
{
+ if (!init_complete) {
+ find_uart_base();
+ init_complete = 1;
+ }
+
if (IS_ENABLED(CONFIG_SOC_MT7621) || soc_is_mt7628()) {
uart_w32(ch, UART_TX);
while ((uart_r32(UART_REG_LSR) & UART_LSR_THRE) == 0)
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index 2ea5ff6dc22e..dfb04fcedb04 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -37,8 +37,17 @@
#define PMU1_CFG 0x8C
#define DIG_SW_SEL BIT(25)
-/* is this a MT7620 or a MT7628 */
-enum mt762x_soc_type mt762x_soc;
+/* clock scaling */
+#define CLKCFG_FDIV_MASK 0x1f00
+#define CLKCFG_FDIV_USB_VAL 0x0300
+#define CLKCFG_FFRAC_MASK 0x001f
+#define CLKCFG_FFRAC_USB_VAL 0x0003
+
+/* EFUSE bits */
+#define EFUSE_MT7688 0x100000
+
+/* DRAM type bit */
+#define DRAM_TYPE_MT7628_MASK 0x1
/* does the board have sdram or ddram */
static int dram_type;
@@ -227,6 +236,12 @@ static struct rt2880_pmx_group mt7628an_pinmux_data[] = {
{ 0 }
};
+static inline int is_mt76x8(void)
+{
+ return ralink_soc == MT762X_SOC_MT7628AN ||
+ ralink_soc == MT762X_SOC_MT7688;
+}
+
static __init u32
mt7620_calc_rate(u32 ref_rate, u32 mul, u32 div)
{
@@ -381,7 +396,7 @@ void __init ralink_clk_init(void)
#define RINT(x) ((x) / 1000000)
#define RFRAC(x) (((x) / 1000) % 1000)
- if (mt762x_soc == MT762X_SOC_MT7628AN) {
+ if (is_mt76x8()) {
if (xtal_rate == MHZ(40))
cpu_rate = MHZ(580);
else
@@ -423,6 +438,20 @@ void __init ralink_clk_init(void)
ralink_clk_add("10000b00.spi", sys_rate);
ralink_clk_add("10000c00.uartlite", periph_rate);
ralink_clk_add("10180000.wmac", xtal_rate);
+
+ if (IS_ENABLED(CONFIG_USB) && is_mt76x8()) {
+ /*
+ * When the CPU goes into sleep mode, the BUS clock will be
+ * too low for USB to function properly. Adjust the busses
+ * fractional divider to fix this
+ */
+ u32 val = rt_sysc_r32(SYSC_REG_CPU_SYS_CLKCFG);
+
+ val &= ~(CLKCFG_FDIV_MASK | CLKCFG_FFRAC_MASK);
+ val |= CLKCFG_FDIV_USB_VAL | CLKCFG_FFRAC_USB_VAL;
+
+ rt_sysc_w32(val, SYSC_REG_CPU_SYS_CLKCFG);
+ }
}
void __init ralink_of_remap(void)
@@ -499,20 +528,24 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
if (n0 == MT7620_CHIP_NAME0 && n1 == MT7620_CHIP_NAME1) {
if (bga) {
- mt762x_soc = MT762X_SOC_MT7620A;
+ ralink_soc = MT762X_SOC_MT7620A;
name = "MT7620A";
soc_info->compatible = "ralink,mt7620a-soc";
} else {
- mt762x_soc = MT762X_SOC_MT7620N;
+ ralink_soc = MT762X_SOC_MT7620N;
name = "MT7620N";
soc_info->compatible = "ralink,mt7620n-soc";
-#ifdef CONFIG_PCI
- panic("mt7620n is only supported for non pci kernels");
-#endif
}
} else if (n0 == MT7620_CHIP_NAME0 && n1 == MT7628_CHIP_NAME1) {
- mt762x_soc = MT762X_SOC_MT7628AN;
- name = "MT7628AN";
+ u32 efuse = __raw_readl(sysc + SYSC_REG_EFUSE_CFG);
+
+ if (efuse & EFUSE_MT7688) {
+ ralink_soc = MT762X_SOC_MT7688;
+ name = "MT7688";
+ } else {
+ ralink_soc = MT762X_SOC_MT7628AN;
+ name = "MT7628AN";
+ }
soc_info->compatible = "ralink,mt7628an-soc";
} else {
panic("mt762x: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
@@ -525,10 +558,14 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
(rev & CHIP_REV_ECO_MASK));
cfg0 = __raw_readl(sysc + SYSC_REG_SYSTEM_CONFIG0);
- dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) & SYSCFG0_DRAM_TYPE_MASK;
+ if (is_mt76x8())
+ dram_type = cfg0 & DRAM_TYPE_MT7628_MASK;
+ else
+ dram_type = (cfg0 >> SYSCFG0_DRAM_TYPE_SHIFT) &
+ SYSCFG0_DRAM_TYPE_MASK;
soc_info->mem_base = MT7620_DRAM_BASE;
- if (mt762x_soc == MT762X_SOC_MT7628AN)
+ if (is_mt76x8())
mt7628_dram_init(soc_info);
else
mt7620_dram_init(soc_info);
@@ -541,7 +578,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
pr_info("Digital PMU set to %s control\n",
(pmu1 & DIG_SW_SEL) ? ("sw") : ("hw"));
- if (mt762x_soc == MT762X_SOC_MT7628AN)
+ if (is_mt76x8())
rt2880_pinmux_data = mt7628an_pinmux_data;
else
rt2880_pinmux_data = mt7620a_pinmux_data;
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index 0d30dcd63246..f9eda5d8f82c 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -74,8 +74,6 @@ void __init plat_mem_setup(void)
*/
__dt_setup_arch(__dtb_start);
- strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
-
of_scan_flat_dt(early_init_dt_find_memory, NULL);
if (memory_dtb)
of_scan_flat_dt(early_init_dt_scan_memory, NULL);
diff --git a/arch/mips/ralink/prom.c b/arch/mips/ralink/prom.c
index 09419f67da39..39a9142f71be 100644
--- a/arch/mips/ralink/prom.c
+++ b/arch/mips/ralink/prom.c
@@ -15,11 +15,16 @@
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
+#include <asm/mach-ralink/ralink_regs.h>
+
#include "common.h"
struct ralink_soc_info soc_info;
struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
+enum ralink_soc_type ralink_soc;
+EXPORT_SYMBOL_GPL(ralink_soc);
+
const char *get_system_type(void)
{
return soc_info.sys_type;
diff --git a/arch/mips/ralink/reset.c b/arch/mips/ralink/reset.c
index 55c7ec59df3c..ee117c4bc4a3 100644
--- a/arch/mips/ralink/reset.c
+++ b/arch/mips/ralink/reset.c
@@ -11,6 +11,7 @@
#include <linux/pm.h>
#include <linux/io.h>
#include <linux/of.h>
+#include <linux/delay.h>
#include <linux/reset-controller.h>
#include <asm/reboot.h>
@@ -18,8 +19,10 @@
#include <asm/mach-ralink/ralink_regs.h>
/* Reset Control */
-#define SYSC_REG_RESET_CTRL 0x034
-#define RSTCTL_RESET_SYSTEM BIT(0)
+#define SYSC_REG_RESET_CTRL 0x034
+
+#define RSTCTL_RESET_PCI BIT(26)
+#define RSTCTL_RESET_SYSTEM BIT(0)
static int ralink_assert_device(struct reset_controller_dev *rcdev,
unsigned long id)
@@ -83,6 +86,11 @@ void ralink_rst_init(void)
static void ralink_restart(char *command)
{
+ if (IS_ENABLED(CONFIG_PCI)) {
+ rt_sysc_m32(0, RSTCTL_RESET_PCI, SYSC_REG_RESET_CTRL);
+ mdelay(50);
+ }
+
local_irq_disable();
rt_sysc_w32(RSTCTL_RESET_SYSTEM, SYSC_REG_RESET_CTRL);
unreachable();
@@ -98,7 +106,6 @@ static int __init mips_reboot_setup(void)
{
_machine_restart = ralink_restart;
_machine_halt = ralink_halt;
- pm_power_off = ralink_halt;
return 0;
}
diff --git a/arch/mips/ralink/rt288x.c b/arch/mips/ralink/rt288x.c
index 738cec865f41..844f5cd55c8f 100644
--- a/arch/mips/ralink/rt288x.c
+++ b/arch/mips/ralink/rt288x.c
@@ -119,4 +119,5 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
soc_info->mem_size_max = RT2880_MEM_SIZE_MAX;
rt2880_pinmux_data = rt2880_pinmux_data_act;
+ ralink_soc == RT2880_SOC;
}
diff --git a/arch/mips/ralink/rt305x.c b/arch/mips/ralink/rt305x.c
index c40776ab67db..9e4572592065 100644
--- a/arch/mips/ralink/rt305x.c
+++ b/arch/mips/ralink/rt305x.c
@@ -21,8 +21,6 @@
#include "common.h"
-enum rt305x_soc_type rt305x_soc;
-
static struct rt2880_pmx_func i2c_func[] = { FUNC("i2c", 0, 1, 2) };
static struct rt2880_pmx_func spi_func[] = { FUNC("spi", 0, 3, 4) };
static struct rt2880_pmx_func uartf_func[] = {
@@ -201,6 +199,7 @@ void __init ralink_clk_init(void)
}
ralink_clk_add("cpu", cpu_rate);
+ ralink_clk_add("sys", sys_rate);
ralink_clk_add("10000b00.spi", sys_rate);
ralink_clk_add("10000100.timer", wdt_rate);
ralink_clk_add("10000120.watchdog", wdt_rate);
@@ -235,24 +234,24 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
icache_sets = (read_c0_config1() >> 22) & 7;
if (icache_sets == 1) {
- rt305x_soc = RT305X_SOC_RT3050;
+ ralink_soc = RT305X_SOC_RT3050;
name = "RT3050";
soc_info->compatible = "ralink,rt3050-soc";
} else {
- rt305x_soc = RT305X_SOC_RT3052;
+ ralink_soc = RT305X_SOC_RT3052;
name = "RT3052";
soc_info->compatible = "ralink,rt3052-soc";
}
} else if (n0 == RT3350_CHIP_NAME0 && n1 == RT3350_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT3350;
+ ralink_soc = RT305X_SOC_RT3350;
name = "RT3350";
soc_info->compatible = "ralink,rt3350-soc";
} else if (n0 == RT3352_CHIP_NAME0 && n1 == RT3352_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT3352;
+ ralink_soc = RT305X_SOC_RT3352;
name = "RT3352";
soc_info->compatible = "ralink,rt3352-soc";
} else if (n0 == RT5350_CHIP_NAME0 && n1 == RT5350_CHIP_NAME1) {
- rt305x_soc = RT305X_SOC_RT5350;
+ ralink_soc = RT305X_SOC_RT5350;
name = "RT5350";
soc_info->compatible = "ralink,rt5350-soc";
} else {
diff --git a/arch/mips/ralink/rt3883.c b/arch/mips/ralink/rt3883.c
index 86a535c770d8..582995aaaf4e 100644
--- a/arch/mips/ralink/rt3883.c
+++ b/arch/mips/ralink/rt3883.c
@@ -153,4 +153,6 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
soc_info->mem_size_max = RT3883_MEM_SIZE_MAX;
rt2880_pinmux_data = rt3883_pinmux_data;
+
+ ralink_soc == RT3883_SOC;
}
diff --git a/arch/mips/vdso/.gitignore b/arch/mips/vdso/.gitignore
new file mode 100644
index 000000000000..5286a7d73d79
--- /dev/null
+++ b/arch/mips/vdso/.gitignore
@@ -0,0 +1,4 @@
+*.so*
+vdso-*image.c
+genvdso
+vdso*.lds
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
new file mode 100644
index 000000000000..ef5f348f386a
--- /dev/null
+++ b/arch/mips/vdso/Makefile
@@ -0,0 +1,160 @@
+# Objects to go into the VDSO.
+obj-vdso-y := elf.o gettimeofday.o sigreturn.o
+
+# Common compiler flags between ABIs.
+ccflags-vdso := \
+ $(filter -I%,$(KBUILD_CFLAGS)) \
+ $(filter -E%,$(KBUILD_CFLAGS)) \
+ $(filter -march=%,$(KBUILD_CFLAGS))
+cflags-vdso := $(ccflags-vdso) \
+ $(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
+ -O2 -g -fPIC -fno-common -fno-builtin -G 0 -DDISABLE_BRANCH_PROFILING \
+ $(call cc-option, -fno-stack-protector)
+aflags-vdso := $(ccflags-vdso) \
+ $(filter -I%,$(KBUILD_CFLAGS)) \
+ $(filter -E%,$(KBUILD_CFLAGS)) \
+ -D__ASSEMBLY__ -Wa,-gdwarf-2
+
+#
+# For the pre-R6 code in arch/mips/vdso/vdso.h for locating
+# the base address of VDSO, the linker will emit a R_MIPS_PC32
+# relocation in binutils > 2.25 but it will fail with older versions
+# because that relocation is not supported for that symbol. As a result
+# of which we are forced to disable the VDSO symbols when building
+# with < 2.25 binutils on pre-R6 kernels. For more references on why we
+# can't use other methods to get the base address of VDSO please refer to
+# the comments on that file.
+#
+ifndef CONFIG_CPU_MIPSR6
+ ifeq ($(call ld-ifversion, -gt, 22400000, y),)
+ $(warning MIPS VDSO requires binutils > 2.24)
+ obj-vdso-y := $(filter-out gettimeofday.o, $(obj-vdso-y))
+ ccflags-vdso += -DDISABLE_MIPS_VDSO
+ endif
+endif
+
+# VDSO linker flags.
+VDSO_LDFLAGS := \
+ -Wl,-Bsymbolic -Wl,--no-undefined -Wl,-soname=linux-vdso.so.1 \
+ -nostdlib -shared \
+ $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) \
+ $(call cc-ldoption, -Wl$(comma)--build-id)
+
+GCOV_PROFILE := n
+
+#
+# Shared build commands.
+#
+
+quiet_cmd_vdsold = VDSO $@
+ cmd_vdsold = $(CC) $(c_flags) $(VDSO_LDFLAGS) \
+ -Wl,-T $(filter %.lds,$^) $(filter %.o,$^) -o $@
+
+hostprogs-y := genvdso
+
+quiet_cmd_genvdso = GENVDSO $@
+define cmd_genvdso
+ cp $< $(<:%.dbg=%) && \
+ $(OBJCOPY) -S $< $(<:%.dbg=%) && \
+ $(obj)/genvdso $< $(<:%.dbg=%) $@ $(VDSO_NAME)
+endef
+
+#
+# Build native VDSO.
+#
+
+native-abi := $(filter -mabi=%,$(KBUILD_CFLAGS))
+
+targets += $(obj-vdso-y)
+targets += vdso.lds vdso.so.dbg vdso.so vdso-image.c
+
+obj-vdso := $(obj-vdso-y:%.o=$(obj)/%.o)
+
+$(obj-vdso): KBUILD_CFLAGS := $(cflags-vdso) $(native-abi)
+$(obj-vdso): KBUILD_AFLAGS := $(aflags-vdso) $(native-abi)
+
+$(obj)/vdso.lds: KBUILD_CPPFLAGS := $(native-abi)
+
+$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE
+ $(call if_changed,vdsold)
+
+$(obj)/vdso-image.c: $(obj)/vdso.so.dbg $(obj)/genvdso FORCE
+ $(call if_changed,genvdso)
+
+obj-y += vdso-image.o
+
+#
+# Build O32 VDSO.
+#
+
+# Define these outside the ifdef to ensure they are picked up by clean.
+targets += $(obj-vdso-y:%.o=%-o32.o)
+targets += vdso-o32.lds vdso-o32.so.dbg vdso-o32.so vdso-o32-image.c
+
+ifdef CONFIG_MIPS32_O32
+
+obj-vdso-o32 := $(obj-vdso-y:%.o=$(obj)/%-o32.o)
+
+$(obj-vdso-o32): KBUILD_CFLAGS := $(cflags-vdso) -mabi=32
+$(obj-vdso-o32): KBUILD_AFLAGS := $(aflags-vdso) -mabi=32
+
+$(obj)/%-o32.o: $(src)/%.S FORCE
+ $(call if_changed_dep,as_o_S)
+
+$(obj)/%-o32.o: $(src)/%.c FORCE
+ $(call cmd,force_checksrc)
+ $(call if_changed_rule,cc_o_c)
+
+$(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := -mabi=32
+$(obj)/vdso-o32.lds: $(src)/vdso.lds.S FORCE
+ $(call if_changed_dep,cpp_lds_S)
+
+$(obj)/vdso-o32.so.dbg: $(obj)/vdso-o32.lds $(obj-vdso-o32) FORCE
+ $(call if_changed,vdsold)
+
+$(obj)/vdso-o32-image.c: VDSO_NAME := o32
+$(obj)/vdso-o32-image.c: $(obj)/vdso-o32.so.dbg $(obj)/genvdso FORCE
+ $(call if_changed,genvdso)
+
+obj-y += vdso-o32-image.o
+
+endif
+
+#
+# Build N32 VDSO.
+#
+
+targets += $(obj-vdso-y:%.o=%-n32.o)
+targets += vdso-n32.lds vdso-n32.so.dbg vdso-n32.so vdso-n32-image.c
+
+ifdef CONFIG_MIPS32_N32
+
+obj-vdso-n32 := $(obj-vdso-y:%.o=$(obj)/%-n32.o)
+
+$(obj-vdso-n32): KBUILD_CFLAGS := $(cflags-vdso) -mabi=n32
+$(obj-vdso-n32): KBUILD_AFLAGS := $(aflags-vdso) -mabi=n32
+
+$(obj)/%-n32.o: $(src)/%.S FORCE
+ $(call if_changed_dep,as_o_S)
+
+$(obj)/%-n32.o: $(src)/%.c FORCE
+ $(call cmd,force_checksrc)
+ $(call if_changed_rule,cc_o_c)
+
+$(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := -mabi=n32
+$(obj)/vdso-n32.lds: $(src)/vdso.lds.S FORCE
+ $(call if_changed_dep,cpp_lds_S)
+
+$(obj)/vdso-n32.so.dbg: $(obj)/vdso-n32.lds $(obj-vdso-n32) FORCE
+ $(call if_changed,vdsold)
+
+$(obj)/vdso-n32-image.c: VDSO_NAME := n32
+$(obj)/vdso-n32-image.c: $(obj)/vdso-n32.so.dbg $(obj)/genvdso FORCE
+ $(call if_changed,genvdso)
+
+obj-y += vdso-n32-image.o
+
+endif
+
+# FIXME: Need install rule for debug.
+# Needs to deal with dependency for generation of dbg by cmd_genvdso...
diff --git a/arch/mips/vdso/elf.S b/arch/mips/vdso/elf.S
new file mode 100644
index 000000000000..be37bbb1f061
--- /dev/null
+++ b/arch/mips/vdso/elf.S
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include "vdso.h"
+
+#include <linux/elfnote.h>
+#include <linux/version.h>
+
+ELFNOTE_START(Linux, 0, "a")
+ .long LINUX_VERSION_CODE
+ELFNOTE_END
+
+/*
+ * The .MIPS.abiflags section must be defined with the FP ABI flags set
+ * to 'any' to be able to link with both old and new libraries.
+ * Newer toolchains are capable of automatically generating this, but we want
+ * to work with older toolchains as well. Therefore, we define the contents of
+ * this section here (under different names), and then genvdso will patch
+ * it to have the correct name and type.
+ *
+ * We base the .MIPS.abiflags section on preprocessor definitions rather than
+ * CONFIG_* because we need to match the particular ABI we are building the
+ * VDSO for.
+ *
+ * See https://dmz-portal.mips.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking
+ * for the .MIPS.abiflags section description.
+ */
+
+ .section .mips_abiflags, "a"
+ .align 3
+__mips_abiflags:
+ .hword 0 /* version */
+ .byte __mips /* isa_level */
+
+ /* isa_rev */
+#ifdef __mips_isa_rev
+ .byte __mips_isa_rev
+#else
+ .byte 0
+#endif
+
+ /* gpr_size */
+#ifdef __mips64
+ .byte 2 /* AFL_REG_64 */
+#else
+ .byte 1 /* AFL_REG_32 */
+#endif
+
+ /* cpr1_size */
+#if (defined(__mips_isa_rev) && __mips_isa_rev >= 6) || defined(__mips64)
+ .byte 2 /* AFL_REG_64 */
+#else
+ .byte 1 /* AFL_REG_32 */
+#endif
+
+ .byte 0 /* cpr2_size (AFL_REG_NONE) */
+ .byte 0 /* fp_abi (Val_GNU_MIPS_ABI_FP_ANY) */
+ .word 0 /* isa_ext */
+ .word 0 /* ases */
+ .word 0 /* flags1 */
+ .word 0 /* flags2 */
diff --git a/arch/mips/vdso/genvdso.c b/arch/mips/vdso/genvdso.c
new file mode 100644
index 000000000000..530a36f465ce
--- /dev/null
+++ b/arch/mips/vdso/genvdso.c
@@ -0,0 +1,293 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+/*
+ * This tool is used to generate the real VDSO images from the raw image. It
+ * first patches up the MIPS ABI flags and GNU attributes sections defined in
+ * elf.S to have the correct name and type. It then generates a C source file
+ * to be compiled into the kernel containing the VDSO image data and a
+ * mips_vdso_image struct for it, including symbol offsets extracted from the
+ * image.
+ *
+ * We need to be passed both a stripped and unstripped VDSO image. The stripped
+ * image is compiled into the kernel, but we must also patch up the unstripped
+ * image's ABI flags sections so that it can be installed and used for
+ * debugging.
+ */
+
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <byteswap.h>
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Define these in case the system elf.h is not new enough to have them. */
+#ifndef SHT_GNU_ATTRIBUTES
+# define SHT_GNU_ATTRIBUTES 0x6ffffff5
+#endif
+#ifndef SHT_MIPS_ABIFLAGS
+# define SHT_MIPS_ABIFLAGS 0x7000002a
+#endif
+
+enum {
+ ABI_O32 = (1 << 0),
+ ABI_N32 = (1 << 1),
+ ABI_N64 = (1 << 2),
+
+ ABI_ALL = ABI_O32 | ABI_N32 | ABI_N64,
+};
+
+/* Symbols the kernel requires offsets for. */
+static struct {
+ const char *name;
+ const char *offset_name;
+ unsigned int abis;
+} vdso_symbols[] = {
+ { "__vdso_sigreturn", "off_sigreturn", ABI_O32 },
+ { "__vdso_rt_sigreturn", "off_rt_sigreturn", ABI_ALL },
+ {}
+};
+
+static const char *program_name;
+static const char *vdso_name;
+static unsigned char elf_class;
+static unsigned int elf_abi;
+static bool need_swap;
+static FILE *out_file;
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+# define HOST_ORDER ELFDATA2LSB
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+# define HOST_ORDER ELFDATA2MSB
+#endif
+
+#define BUILD_SWAP(bits) \
+ static uint##bits##_t swap_uint##bits(uint##bits##_t val) \
+ { \
+ return need_swap ? bswap_##bits(val) : val; \
+ }
+
+BUILD_SWAP(16)
+BUILD_SWAP(32)
+BUILD_SWAP(64)
+
+#define __FUNC(name, bits) name##bits
+#define _FUNC(name, bits) __FUNC(name, bits)
+#define FUNC(name) _FUNC(name, ELF_BITS)
+
+#define __ELF(x, bits) Elf##bits##_##x
+#define _ELF(x, bits) __ELF(x, bits)
+#define ELF(x) _ELF(x, ELF_BITS)
+
+/*
+ * Include genvdso.h twice with ELF_BITS defined differently to get functions
+ * for both ELF32 and ELF64.
+ */
+
+#define ELF_BITS 64
+#include "genvdso.h"
+#undef ELF_BITS
+
+#define ELF_BITS 32
+#include "genvdso.h"
+#undef ELF_BITS
+
+static void *map_vdso(const char *path, size_t *_size)
+{
+ int fd;
+ struct stat stat;
+ void *addr;
+ const Elf32_Ehdr *ehdr;
+
+ fd = open(path, O_RDWR);
+ if (fd < 0) {
+ fprintf(stderr, "%s: Failed to open '%s': %s\n", program_name,
+ path, strerror(errno));
+ return NULL;
+ }
+
+ if (fstat(fd, &stat) != 0) {
+ fprintf(stderr, "%s: Failed to stat '%s': %s\n", program_name,
+ path, strerror(errno));
+ return NULL;
+ }
+
+ addr = mmap(NULL, stat.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd,
+ 0);
+ if (addr == MAP_FAILED) {
+ fprintf(stderr, "%s: Failed to map '%s': %s\n", program_name,
+ path, strerror(errno));
+ return NULL;
+ }
+
+ /* ELF32/64 header formats are the same for the bits we're checking. */
+ ehdr = addr;
+
+ if (memcmp(ehdr->e_ident, ELFMAG, SELFMAG) != 0) {
+ fprintf(stderr, "%s: '%s' is not an ELF file\n", program_name,
+ path);
+ return NULL;
+ }
+
+ elf_class = ehdr->e_ident[EI_CLASS];
+ switch (elf_class) {
+ case ELFCLASS32:
+ case ELFCLASS64:
+ break;
+ default:
+ fprintf(stderr, "%s: '%s' has invalid ELF class\n",
+ program_name, path);
+ return NULL;
+ }
+
+ switch (ehdr->e_ident[EI_DATA]) {
+ case ELFDATA2LSB:
+ case ELFDATA2MSB:
+ need_swap = ehdr->e_ident[EI_DATA] != HOST_ORDER;
+ break;
+ default:
+ fprintf(stderr, "%s: '%s' has invalid ELF data order\n",
+ program_name, path);
+ return NULL;
+ }
+
+ if (swap_uint16(ehdr->e_machine) != EM_MIPS) {
+ fprintf(stderr,
+ "%s: '%s' has invalid ELF machine (expected EM_MIPS)\n",
+ program_name, path);
+ return NULL;
+ } else if (swap_uint16(ehdr->e_type) != ET_DYN) {
+ fprintf(stderr,
+ "%s: '%s' has invalid ELF type (expected ET_DYN)\n",
+ program_name, path);
+ return NULL;
+ }
+
+ *_size = stat.st_size;
+ return addr;
+}
+
+static bool patch_vdso(const char *path, void *vdso)
+{
+ if (elf_class == ELFCLASS64)
+ return patch_vdso64(path, vdso);
+ else
+ return patch_vdso32(path, vdso);
+}
+
+static bool get_symbols(const char *path, void *vdso)
+{
+ if (elf_class == ELFCLASS64)
+ return get_symbols64(path, vdso);
+ else
+ return get_symbols32(path, vdso);
+}
+
+int main(int argc, char **argv)
+{
+ const char *dbg_vdso_path, *vdso_path, *out_path;
+ void *dbg_vdso, *vdso;
+ size_t dbg_vdso_size, vdso_size, i;
+
+ program_name = argv[0];
+
+ if (argc < 4 || argc > 5) {
+ fprintf(stderr,
+ "Usage: %s <debug VDSO> <stripped VDSO> <output file> [<name>]\n",
+ program_name);
+ return EXIT_FAILURE;
+ }
+
+ dbg_vdso_path = argv[1];
+ vdso_path = argv[2];
+ out_path = argv[3];
+ vdso_name = (argc > 4) ? argv[4] : "";
+
+ dbg_vdso = map_vdso(dbg_vdso_path, &dbg_vdso_size);
+ if (!dbg_vdso)
+ return EXIT_FAILURE;
+
+ vdso = map_vdso(vdso_path, &vdso_size);
+ if (!vdso)
+ return EXIT_FAILURE;
+
+ /* Patch both the VDSOs' ABI flags sections. */
+ if (!patch_vdso(dbg_vdso_path, dbg_vdso))
+ return EXIT_FAILURE;
+ if (!patch_vdso(vdso_path, vdso))
+ return EXIT_FAILURE;
+
+ if (msync(dbg_vdso, dbg_vdso_size, MS_SYNC) != 0) {
+ fprintf(stderr, "%s: Failed to sync '%s': %s\n", program_name,
+ dbg_vdso_path, strerror(errno));
+ return EXIT_FAILURE;
+ } else if (msync(vdso, vdso_size, MS_SYNC) != 0) {
+ fprintf(stderr, "%s: Failed to sync '%s': %s\n", program_name,
+ vdso_path, strerror(errno));
+ return EXIT_FAILURE;
+ }
+
+ out_file = fopen(out_path, "w");
+ if (!out_file) {
+ fprintf(stderr, "%s: Failed to open '%s': %s\n", program_name,
+ out_path, strerror(errno));
+ return EXIT_FAILURE;
+ }
+
+ fprintf(out_file, "/* Automatically generated - do not edit */\n");
+ fprintf(out_file, "#include <linux/linkage.h>\n");
+ fprintf(out_file, "#include <linux/mm.h>\n");
+ fprintf(out_file, "#include <asm/vdso.h>\n");
+
+ /* Write out the stripped VDSO data. */
+ fprintf(out_file,
+ "static unsigned char vdso_data[PAGE_ALIGN(%zu)] __page_aligned_data = {\n\t",
+ vdso_size);
+ for (i = 0; i < vdso_size; i++) {
+ if (!(i % 10))
+ fprintf(out_file, "\n\t");
+ fprintf(out_file, "0x%02x, ", ((unsigned char *)vdso)[i]);
+ }
+ fprintf(out_file, "\n};\n");
+
+ /* Preallocate a page array. */
+ fprintf(out_file,
+ "static struct page *vdso_pages[PAGE_ALIGN(%zu) / PAGE_SIZE];\n",
+ vdso_size);
+
+ fprintf(out_file, "struct mips_vdso_image vdso_image%s%s = {\n",
+ (vdso_name[0]) ? "_" : "", vdso_name);
+ fprintf(out_file, "\t.data = vdso_data,\n");
+ fprintf(out_file, "\t.size = PAGE_ALIGN(%zu),\n", vdso_size);
+ fprintf(out_file, "\t.mapping = {\n");
+ fprintf(out_file, "\t\t.name = \"[vdso]\",\n");
+ fprintf(out_file, "\t\t.pages = vdso_pages,\n");
+ fprintf(out_file, "\t},\n");
+
+ /* Calculate and write symbol offsets to <output file> */
+ if (!get_symbols(dbg_vdso_path, dbg_vdso)) {
+ unlink(out_path);
+ return EXIT_FAILURE;
+ }
+
+ fprintf(out_file, "};\n");
+
+ return EXIT_SUCCESS;
+}
diff --git a/arch/mips/vdso/genvdso.h b/arch/mips/vdso/genvdso.h
new file mode 100644
index 000000000000..94334727059a
--- /dev/null
+++ b/arch/mips/vdso/genvdso.h
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+static inline bool FUNC(patch_vdso)(const char *path, void *vdso)
+{
+ const ELF(Ehdr) *ehdr = vdso;
+ void *shdrs;
+ ELF(Shdr) *shdr;
+ char *shstrtab, *name;
+ uint16_t sh_count, sh_entsize, i;
+ unsigned int local_gotno, symtabno, gotsym;
+ ELF(Dyn) *dyn = NULL;
+
+ shdrs = vdso + FUNC(swap_uint)(ehdr->e_shoff);
+ sh_count = swap_uint16(ehdr->e_shnum);
+ sh_entsize = swap_uint16(ehdr->e_shentsize);
+
+ shdr = shdrs + (sh_entsize * swap_uint16(ehdr->e_shstrndx));
+ shstrtab = vdso + FUNC(swap_uint)(shdr->sh_offset);
+
+ for (i = 0; i < sh_count; i++) {
+ shdr = shdrs + (i * sh_entsize);
+ name = shstrtab + swap_uint32(shdr->sh_name);
+
+ /*
+ * Ensure there are no relocation sections - ld.so does not
+ * relocate the VDSO so if there are relocations things will
+ * break.
+ */
+ switch (swap_uint32(shdr->sh_type)) {
+ case SHT_REL:
+ case SHT_RELA:
+ fprintf(stderr,
+ "%s: '%s' contains relocation sections\n",
+ program_name, path);
+ return false;
+ case SHT_DYNAMIC:
+ dyn = vdso + FUNC(swap_uint)(shdr->sh_offset);
+ break;
+ }
+
+ /* Check for existing sections. */
+ if (strcmp(name, ".MIPS.abiflags") == 0) {
+ fprintf(stderr,
+ "%s: '%s' already contains a '.MIPS.abiflags' section\n",
+ program_name, path);
+ return false;
+ }
+
+ if (strcmp(name, ".mips_abiflags") == 0) {
+ strcpy(name, ".MIPS.abiflags");
+ shdr->sh_type = swap_uint32(SHT_MIPS_ABIFLAGS);
+ shdr->sh_entsize = shdr->sh_size;
+ }
+ }
+
+ /*
+ * Ensure the GOT has no entries other than the standard 2, for the same
+ * reason we check that there's no relocation sections above.
+ * The standard two entries are:
+ * - Lazy resolver
+ * - Module pointer
+ */
+ if (dyn) {
+ local_gotno = symtabno = gotsym = 0;
+
+ while (FUNC(swap_uint)(dyn->d_tag) != DT_NULL) {
+ switch (FUNC(swap_uint)(dyn->d_tag)) {
+ /*
+ * This member holds the number of local GOT entries.
+ */
+ case DT_MIPS_LOCAL_GOTNO:
+ local_gotno = FUNC(swap_uint)(dyn->d_un.d_val);
+ break;
+ /*
+ * This member holds the number of entries in the
+ * .dynsym section.
+ */
+ case DT_MIPS_SYMTABNO:
+ symtabno = FUNC(swap_uint)(dyn->d_un.d_val);
+ break;
+ /*
+ * This member holds the index of the first dynamic
+ * symbol table entry that corresponds to an entry in
+ * the GOT.
+ */
+ case DT_MIPS_GOTSYM:
+ gotsym = FUNC(swap_uint)(dyn->d_un.d_val);
+ break;
+ }
+
+ dyn++;
+ }
+
+ if (local_gotno > 2 || symtabno - gotsym) {
+ fprintf(stderr,
+ "%s: '%s' contains unexpected GOT entries\n",
+ program_name, path);
+ return false;
+ }
+ }
+
+ return true;
+}
+
+static inline bool FUNC(get_symbols)(const char *path, void *vdso)
+{
+ const ELF(Ehdr) *ehdr = vdso;
+ void *shdrs, *symtab;
+ ELF(Shdr) *shdr;
+ const ELF(Sym) *sym;
+ char *strtab, *name;
+ uint16_t sh_count, sh_entsize, st_count, st_entsize, i, j;
+ uint64_t offset;
+ uint32_t flags;
+
+ shdrs = vdso + FUNC(swap_uint)(ehdr->e_shoff);
+ sh_count = swap_uint16(ehdr->e_shnum);
+ sh_entsize = swap_uint16(ehdr->e_shentsize);
+
+ for (i = 0; i < sh_count; i++) {
+ shdr = shdrs + (i * sh_entsize);
+
+ if (swap_uint32(shdr->sh_type) == SHT_SYMTAB)
+ break;
+ }
+
+ if (i == sh_count) {
+ fprintf(stderr, "%s: '%s' has no symbol table\n", program_name,
+ path);
+ return false;
+ }
+
+ /* Get flags */
+ flags = swap_uint32(ehdr->e_flags);
+ if (elf_class == ELFCLASS64)
+ elf_abi = ABI_N64;
+ else if (flags & EF_MIPS_ABI2)
+ elf_abi = ABI_N32;
+ else
+ elf_abi = ABI_O32;
+
+ /* Get symbol table. */
+ symtab = vdso + FUNC(swap_uint)(shdr->sh_offset);
+ st_entsize = FUNC(swap_uint)(shdr->sh_entsize);
+ st_count = FUNC(swap_uint)(shdr->sh_size) / st_entsize;
+
+ /* Get string table. */
+ shdr = shdrs + (swap_uint32(shdr->sh_link) * sh_entsize);
+ strtab = vdso + FUNC(swap_uint)(shdr->sh_offset);
+
+ /* Write offsets for symbols needed by the kernel. */
+ for (i = 0; vdso_symbols[i].name; i++) {
+ if (!(vdso_symbols[i].abis & elf_abi))
+ continue;
+
+ for (j = 0; j < st_count; j++) {
+ sym = symtab + (j * st_entsize);
+ name = strtab + swap_uint32(sym->st_name);
+
+ if (!strcmp(name, vdso_symbols[i].name)) {
+ offset = FUNC(swap_uint)(sym->st_value);
+
+ fprintf(out_file,
+ "\t.%s = 0x%" PRIx64 ",\n",
+ vdso_symbols[i].offset_name, offset);
+ break;
+ }
+ }
+
+ if (j == st_count) {
+ fprintf(stderr,
+ "%s: '%s' is missing required symbol '%s'\n",
+ program_name, path, vdso_symbols[i].name);
+ return false;
+ }
+ }
+
+ return true;
+}
diff --git a/arch/mips/vdso/gettimeofday.c b/arch/mips/vdso/gettimeofday.c
new file mode 100644
index 000000000000..ce89c9e294f9
--- /dev/null
+++ b/arch/mips/vdso/gettimeofday.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include "vdso.h"
+
+#include <linux/compiler.h>
+#include <linux/irqchip/mips-gic.h>
+#include <linux/time.h>
+
+#include <asm/clocksource.h>
+#include <asm/io.h>
+#include <asm/mips-cm.h>
+#include <asm/unistd.h>
+#include <asm/vdso.h>
+
+static __always_inline int do_realtime_coarse(struct timespec *ts,
+ const union mips_vdso_data *data)
+{
+ u32 start_seq;
+
+ do {
+ start_seq = vdso_data_read_begin(data);
+
+ ts->tv_sec = data->xtime_sec;
+ ts->tv_nsec = data->xtime_nsec >> data->cs_shift;
+ } while (vdso_data_read_retry(data, start_seq));
+
+ return 0;
+}
+
+static __always_inline int do_monotonic_coarse(struct timespec *ts,
+ const union mips_vdso_data *data)
+{
+ u32 start_seq;
+ u32 to_mono_sec;
+ u32 to_mono_nsec;
+
+ do {
+ start_seq = vdso_data_read_begin(data);
+
+ ts->tv_sec = data->xtime_sec;
+ ts->tv_nsec = data->xtime_nsec >> data->cs_shift;
+
+ to_mono_sec = data->wall_to_mono_sec;
+ to_mono_nsec = data->wall_to_mono_nsec;
+ } while (vdso_data_read_retry(data, start_seq));
+
+ ts->tv_sec += to_mono_sec;
+ timespec_add_ns(ts, to_mono_nsec);
+
+ return 0;
+}
+
+#ifdef CONFIG_CSRC_R4K
+
+static __always_inline u64 read_r4k_count(void)
+{
+ unsigned int count;
+
+ __asm__ __volatile__(
+ " .set push\n"
+ " .set mips32r2\n"
+ " rdhwr %0, $2\n"
+ " .set pop\n"
+ : "=r" (count));
+
+ return count;
+}
+
+#endif
+
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+
+static __always_inline u64 read_gic_count(const union mips_vdso_data *data)
+{
+ void __iomem *gic = get_gic(data);
+ u32 hi, hi2, lo;
+
+ do {
+ hi = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
+ lo = __raw_readl(gic + GIC_UMV_SH_COUNTER_31_00_OFS);
+ hi2 = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
+ } while (hi2 != hi);
+
+ return (((u64)hi) << 32) + lo;
+}
+
+#endif
+
+static __always_inline u64 get_ns(const union mips_vdso_data *data)
+{
+ u64 cycle_now, delta, nsec;
+
+ switch (data->clock_mode) {
+#ifdef CONFIG_CSRC_R4K
+ case VDSO_CLOCK_R4K:
+ cycle_now = read_r4k_count();
+ break;
+#endif
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+ case VDSO_CLOCK_GIC:
+ cycle_now = read_gic_count(data);
+ break;
+#endif
+ default:
+ return 0;
+ }
+
+ delta = (cycle_now - data->cs_cycle_last) & data->cs_mask;
+
+ nsec = (delta * data->cs_mult) + data->xtime_nsec;
+ nsec >>= data->cs_shift;
+
+ return nsec;
+}
+
+static __always_inline int do_realtime(struct timespec *ts,
+ const union mips_vdso_data *data)
+{
+ u32 start_seq;
+ u64 ns;
+
+ do {
+ start_seq = vdso_data_read_begin(data);
+
+ if (data->clock_mode == VDSO_CLOCK_NONE)
+ return -ENOSYS;
+
+ ts->tv_sec = data->xtime_sec;
+ ns = get_ns(data);
+ } while (vdso_data_read_retry(data, start_seq));
+
+ ts->tv_nsec = 0;
+ timespec_add_ns(ts, ns);
+
+ return 0;
+}
+
+static __always_inline int do_monotonic(struct timespec *ts,
+ const union mips_vdso_data *data)
+{
+ u32 start_seq;
+ u64 ns;
+ u32 to_mono_sec;
+ u32 to_mono_nsec;
+
+ do {
+ start_seq = vdso_data_read_begin(data);
+
+ if (data->clock_mode == VDSO_CLOCK_NONE)
+ return -ENOSYS;
+
+ ts->tv_sec = data->xtime_sec;
+ ns = get_ns(data);
+
+ to_mono_sec = data->wall_to_mono_sec;
+ to_mono_nsec = data->wall_to_mono_nsec;
+ } while (vdso_data_read_retry(data, start_seq));
+
+ ts->tv_sec += to_mono_sec;
+ ts->tv_nsec = 0;
+ timespec_add_ns(ts, ns + to_mono_nsec);
+
+ return 0;
+}
+
+#ifdef CONFIG_MIPS_CLOCK_VSYSCALL
+
+/*
+ * This is behind the ifdef so that we don't provide the symbol when there's no
+ * possibility of there being a usable clocksource, because there's nothing we
+ * can do without it. When libc fails the symbol lookup it should fall back on
+ * the standard syscall path.
+ */
+int __vdso_gettimeofday(struct timeval *tv, struct timezone *tz)
+{
+ const union mips_vdso_data *data = get_vdso_data();
+ struct timespec ts;
+ int ret;
+
+ ret = do_realtime(&ts, data);
+ if (ret)
+ return ret;
+
+ if (tv) {
+ tv->tv_sec = ts.tv_sec;
+ tv->tv_usec = ts.tv_nsec / 1000;
+ }
+
+ if (tz) {
+ tz->tz_minuteswest = data->tz_minuteswest;
+ tz->tz_dsttime = data->tz_dsttime;
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_CLKSRC_MIPS_GIC */
+
+int __vdso_clock_gettime(clockid_t clkid, struct timespec *ts)
+{
+ const union mips_vdso_data *data = get_vdso_data();
+ int ret;
+
+ switch (clkid) {
+ case CLOCK_REALTIME_COARSE:
+ ret = do_realtime_coarse(ts, data);
+ break;
+ case CLOCK_MONOTONIC_COARSE:
+ ret = do_monotonic_coarse(ts, data);
+ break;
+ case CLOCK_REALTIME:
+ ret = do_realtime(ts, data);
+ break;
+ case CLOCK_MONOTONIC:
+ ret = do_monotonic(ts, data);
+ break;
+ default:
+ ret = -ENOSYS;
+ break;
+ }
+
+ /* If we return -ENOSYS libc should fall back to a syscall. */
+ return ret;
+}
diff --git a/arch/mips/vdso/sigreturn.S b/arch/mips/vdso/sigreturn.S
new file mode 100644
index 000000000000..715bf5993529
--- /dev/null
+++ b/arch/mips/vdso/sigreturn.S
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include "vdso.h"
+
+#include <uapi/asm/unistd.h>
+
+#include <asm/regdef.h>
+#include <asm/asm.h>
+
+ .section .text
+ .cfi_sections .debug_frame
+
+LEAF(__vdso_rt_sigreturn)
+ .cfi_startproc
+ .frame sp, 0, ra
+ .mask 0x00000000, 0
+ .fmask 0x00000000, 0
+ .cfi_signal_frame
+
+ li v0, __NR_rt_sigreturn
+ syscall
+
+ .cfi_endproc
+ END(__vdso_rt_sigreturn)
+
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+
+LEAF(__vdso_sigreturn)
+ .cfi_startproc
+ .frame sp, 0, ra
+ .mask 0x00000000, 0
+ .fmask 0x00000000, 0
+ .cfi_signal_frame
+
+ li v0, __NR_sigreturn
+ syscall
+
+ .cfi_endproc
+ END(__vdso_sigreturn)
+
+#endif
diff --git a/arch/mips/vdso/vdso.h b/arch/mips/vdso/vdso.h
new file mode 100644
index 000000000000..cfb1be441dec
--- /dev/null
+++ b/arch/mips/vdso/vdso.h
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/sgidefs.h>
+
+#if _MIPS_SIM != _MIPS_SIM_ABI64 && defined(CONFIG_64BIT)
+
+/* Building 32-bit VDSO for the 64-bit kernel. Fake a 32-bit Kconfig. */
+#undef CONFIG_64BIT
+#define CONFIG_32BIT 1
+#ifndef __ASSEMBLY__
+#include <asm-generic/atomic64.h>
+#endif
+#endif
+
+#ifndef __ASSEMBLY__
+
+#include <asm/asm.h>
+#include <asm/page.h>
+#include <asm/vdso.h>
+
+static inline unsigned long get_vdso_base(void)
+{
+ unsigned long addr;
+
+ /*
+ * We can't use cpu_has_mips_r6 since it needs the cpu_data[]
+ * kernel symbol.
+ */
+#ifdef CONFIG_CPU_MIPSR6
+ /*
+ * lapc <symbol> is an alias to addiupc reg, <symbol> - .
+ *
+ * We can't use addiupc because there is no label-label
+ * support for the addiupc reloc
+ */
+ __asm__("lapc %0, _start \n"
+ : "=r" (addr) : :);
+#else
+ /*
+ * Get the base load address of the VDSO. We have to avoid generating
+ * relocations and references to the GOT because ld.so does not peform
+ * relocations on the VDSO. We use the current offset from the VDSO base
+ * and perform a PC-relative branch which gives the absolute address in
+ * ra, and take the difference. The assembler chokes on
+ * "li %0, _start - .", so embed the offset as a word and branch over
+ * it.
+ *
+ */
+
+ __asm__(
+ " .set push \n"
+ " .set noreorder \n"
+ " bal 1f \n"
+ " nop \n"
+ " .word _start - . \n"
+ "1: lw %0, 0($31) \n"
+ " " STR(PTR_ADDU) " %0, $31, %0 \n"
+ " .set pop \n"
+ : "=r" (addr)
+ :
+ : "$31");
+#endif /* CONFIG_CPU_MIPSR6 */
+
+ return addr;
+}
+
+static inline const union mips_vdso_data *get_vdso_data(void)
+{
+ return (const union mips_vdso_data *)(get_vdso_base() - PAGE_SIZE);
+}
+
+#ifdef CONFIG_CLKSRC_MIPS_GIC
+
+static inline void __iomem *get_gic(const union mips_vdso_data *data)
+{
+ return (void __iomem *)data - PAGE_SIZE;
+}
+
+#endif /* CONFIG_CLKSRC_MIPS_GIC */
+
+#endif /* __ASSEMBLY__ */
diff --git a/arch/mips/vdso/vdso.lds.S b/arch/mips/vdso/vdso.lds.S
new file mode 100644
index 000000000000..8df7dd53e8e0
--- /dev/null
+++ b/arch/mips/vdso/vdso.lds.S
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Alex Smith <alex.smith@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/sgidefs.h>
+
+#if _MIPS_SIM == _MIPS_SIM_ABI64
+OUTPUT_FORMAT("elf64-tradlittlemips", "elf64-tradbigmips", "elf64-tradlittlemips")
+#elif _MIPS_SIM == _MIPS_SIM_NABI32
+OUTPUT_FORMAT("elf32-ntradlittlemips", "elf32-ntradbigmips", "elf32-ntradlittlemips")
+#else
+OUTPUT_FORMAT("elf32-tradlittlemips", "elf32-tradbigmips", "elf32-tradlittlemips")
+#endif
+
+OUTPUT_ARCH(mips)
+
+SECTIONS
+{
+ PROVIDE(_start = .);
+ . = SIZEOF_HEADERS;
+
+ /*
+ * In order to retain compatibility with older toolchains we provide the
+ * ABI flags section ourself. Newer assemblers will automatically
+ * generate .MIPS.abiflags sections so we discard such input sections,
+ * and then manually define our own section here. genvdso will patch
+ * this section to have the correct name/type.
+ */
+ .mips_abiflags : { *(.mips_abiflags) } :text :abiflags
+
+ .reginfo : { *(.reginfo) } :text :reginfo
+
+ .hash : { *(.hash) } :text
+ .gnu.hash : { *(.gnu.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .gnu.version_r : { *(.gnu.version_r) }
+
+ .note : { *(.note.*) } :text :note
+
+ .text : { *(.text*) } :text
+ PROVIDE (__etext = .);
+ PROVIDE (_etext = .);
+ PROVIDE (etext = .);
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
+ .eh_frame : { KEEP (*(.eh_frame)) } :text
+
+ .dynamic : { *(.dynamic) } :text :dynamic
+
+ .rodata : { *(.rodata*) } :text
+
+ _end = .;
+ PROVIDE(end = .);
+
+ /DISCARD/ : {
+ *(.MIPS.abiflags)
+ *(.gnu.attributes)
+ *(.note.GNU-stack)
+ *(.data .data.* .gnu.linkonce.d.* .sdata*)
+ *(.bss .sbss .dynbss .dynsbss)
+ }
+}
+
+PHDRS
+{
+ /*
+ * Provide a PT_MIPS_ABIFLAGS header to assign the ABI flags section
+ * to. We can specify the header type directly here so no modification
+ * is needed later on.
+ */
+ abiflags 0x70000003;
+
+ /*
+ * The ABI flags header must exist directly after the PT_INTERP header,
+ * so we must explicitly place the PT_MIPS_REGINFO header after it to
+ * stop the linker putting one in at the start.
+ */
+ reginfo 0x70000000;
+
+ text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
+ dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
+ note PT_NOTE FLAGS(4); /* PF_R */
+ eh_frame_hdr PT_GNU_EH_FRAME;
+}
+
+VERSION
+{
+ LINUX_2.6 {
+#ifndef DISABLE_MIPS_VDSO
+ global:
+ __vdso_clock_gettime;
+ __vdso_gettimeofday;
+#endif
+ local: *;
+ };
+}
diff --git a/arch/mips/xilfpga/Kconfig b/arch/mips/xilfpga/Kconfig
new file mode 100644
index 000000000000..42a030a0edba
--- /dev/null
+++ b/arch/mips/xilfpga/Kconfig
@@ -0,0 +1,9 @@
+choice
+ prompt "Machine type"
+ depends on MACH_XILFPGA
+ default XILFPGA_NEXYS4DDR
+
+config XILFPGA_NEXYS4DDR
+ bool "Nexys4DDR by Digilent"
+
+endchoice
diff --git a/arch/mips/xilfpga/Makefile b/arch/mips/xilfpga/Makefile
new file mode 100644
index 000000000000..a4deec6fadbc
--- /dev/null
+++ b/arch/mips/xilfpga/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the Xilfpga
+#
+
+obj-y += init.o
+obj-y += intc.o
+obj-y += time.o
diff --git a/arch/mips/xilfpga/Platform b/arch/mips/xilfpga/Platform
new file mode 100644
index 000000000000..ed375afe3d39
--- /dev/null
+++ b/arch/mips/xilfpga/Platform
@@ -0,0 +1,3 @@
+platform-$(CONFIG_MACH_XILFPGA) += xilfpga/
+cflags-$(CONFIG_MACH_XILFPGA) += -I$(srctree)/arch/mips/include/asm/mach-xilfpga
+load-$(CONFIG_MACH_XILFPGA) += 0xffffffff80100000
diff --git a/arch/mips/xilfpga/init.c b/arch/mips/xilfpga/init.c
new file mode 100644
index 000000000000..ce2aee2169ac
--- /dev/null
+++ b/arch/mips/xilfpga/init.c
@@ -0,0 +1,57 @@
+/*
+ * Xilfpga platform setup
+ *
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/of_fdt.h>
+#include <linux/of_platform.h>
+
+#include <asm/prom.h>
+
+#define XILFPGA_UART_BASE 0xb0401000
+
+const char *get_system_type(void)
+{
+ return "MIPSfpga";
+}
+
+void __init plat_mem_setup(void)
+{
+ __dt_setup_arch(__dtb_start);
+ strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
+void __init prom_init(void)
+{
+ setup_8250_early_printk_port(XILFPGA_UART_BASE, 2, 50000);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+void __init device_tree_init(void)
+{
+ if (!initial_boot_params)
+ return;
+
+ unflatten_and_copy_device_tree();
+}
+
+static int __init plat_of_setup(void)
+{
+ if (!of_have_populated_dt())
+ panic("Device tree not present");
+
+ if (of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL))
+ panic("Failed to populate DT");
+
+ return 0;
+}
+arch_initcall(plat_of_setup);
diff --git a/arch/mips/xilfpga/intc.c b/arch/mips/xilfpga/intc.c
new file mode 100644
index 000000000000..c4d1a716b347
--- /dev/null
+++ b/arch/mips/xilfpga/intc.c
@@ -0,0 +1,25 @@
+/*
+ * Xilfpga interrupt controller setup
+ *
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/of.h>
+#include <linux/of_irq.h>
+
+#include <asm/irq_cpu.h>
+
+static struct of_device_id of_irq_ids[] __initdata = {
+ { .compatible = "mti,cpu-interrupt-controller", .data = mips_cpu_irq_of_init },
+ {},
+};
+
+void __init arch_init_irq(void)
+{
+ of_irq_init(of_irq_ids);
+}
diff --git a/arch/mips/xilfpga/time.c b/arch/mips/xilfpga/time.c
new file mode 100644
index 000000000000..cbb3fca7b6fa
--- /dev/null
+++ b/arch/mips/xilfpga/time.c
@@ -0,0 +1,41 @@
+/*
+ * Xilfpga clocksource/timer setup
+ *
+ * Copyright (C) 2015 Imagination Technologies
+ * Author: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/of.h>
+
+#include <asm/time.h>
+
+void __init plat_time_init(void)
+{
+ struct device_node *np;
+ struct clk *clk;
+
+ of_clk_init(NULL);
+ clocksource_probe();
+
+ np = of_get_cpu_node(0, NULL);
+ if (!np) {
+ pr_err("Failed to get CPU node\n");
+ return;
+ }
+
+ clk = of_clk_get(np, 0);
+ if (IS_ERR(clk)) {
+ pr_err("Failed to get CPU clock: %ld\n", PTR_ERR(clk));
+ return;
+ }
+
+ mips_hpt_frequency = clk_get_rate(clk) / 2;
+ clk_put(clk);
+}
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index 02a1945e5093..89d3e4d7900c 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -140,9 +140,10 @@ static cycle_t gic_hpt_read(struct clocksource *cs)
}
static struct clocksource gic_clocksource = {
- .name = "GIC",
- .read = gic_hpt_read,
- .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+ .name = "GIC",
+ .read = gic_hpt_read,
+ .flags = CLOCK_SOURCE_IS_CONTINUOUS,
+ .archdata = { .vdso_clock_mode = VDSO_CLOCK_GIC },
};
static void __init __gic_clocksource_init(void)
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index aeaa061f0dbf..9e17ef27a183 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -29,6 +29,7 @@ struct gic_pcpu_mask {
DECLARE_BITMAP(pcpu_mask, GIC_MAX_INTRS);
};
+static unsigned long __gic_base_addr;
static void __iomem *gic_base;
static struct gic_pcpu_mask pcpu_masks[NR_CPUS];
static DEFINE_SPINLOCK(gic_lock);
@@ -301,6 +302,17 @@ int gic_get_c0_fdc_int(void)
GIC_LOCAL_TO_HWIRQ(GIC_LOCAL_INT_FDC));
}
+int gic_get_usm_range(struct resource *gic_usm_res)
+{
+ if (!gic_present)
+ return -1;
+
+ gic_usm_res->start = __gic_base_addr + USM_VISIBLE_SECTION_OFS;
+ gic_usm_res->end = gic_usm_res->start + (USM_VISIBLE_SECTION_SIZE - 1);
+
+ return 0;
+}
+
static void gic_handle_shared_int(bool chained)
{
unsigned int i, intr, virq, gic_reg_step = mips_cm_is64 ? 8 : 4;
@@ -798,6 +810,8 @@ static void __init __gic_init(unsigned long gic_base_addr,
{
unsigned int gicconfig;
+ __gic_base_addr = gic_base_addr;
+
gic_base = ioremap_nocache(gic_base_addr, gic_addrspace_size);
gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
index 4e6861605050..ce824db48d64 100644
--- a/include/linux/irqchip/mips-gic.h
+++ b/include/linux/irqchip/mips-gic.h
@@ -9,6 +9,7 @@
#define __LINUX_IRQCHIP_MIPS_GIC_H
#include <linux/clocksource.h>
+#include <linux/ioport.h>
#define GIC_MAX_INTRS 256
@@ -245,6 +246,8 @@
#define GIC_SHARED_TO_HWIRQ(x) (GIC_SHARED_HWIRQ_BASE + (x))
#define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
+#ifdef CONFIG_MIPS_GIC
+
extern unsigned int gic_present;
extern void gic_init(unsigned long gic_base_addr,
@@ -264,4 +267,18 @@ extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
extern int gic_get_c0_compare_int(void);
extern int gic_get_c0_perfcount_int(void);
extern int gic_get_c0_fdc_int(void);
+extern int gic_get_usm_range(struct resource *gic_usm_res);
+
+#else /* CONFIG_MIPS_GIC */
+
+#define gic_present 0
+
+static inline int gic_get_usm_range(struct resource *gic_usm_res)
+{
+ /* Shouldn't be called. */
+ return -1;
+}
+
+#endif /* CONFIG_MIPS_GIC */
+
#endif /* __LINUX_IRQCHIP_MIPS_GIC_H */