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authorLi, Aubrey <aubrey.li@linux.intel.com>2014-06-30 14:09:38 +0800
committerH. Peter Anvin <hpa@linux.intel.com>2014-07-25 14:11:58 -0700
commitb00055cade45379fb6a51798b70ef520d7555c5f (patch)
tree2cfa8e89e2317a1c25c141d4b7177352e3a1946b /arch/x86/include
parent93e5eadd1f6e7f45c31aa327c42ac52e4df5ff6f (diff)
downloadlinux-b00055cade45379fb6a51798b70ef520d7555c5f.tar.gz
x86/pmc_atom: Eisable a few S0ix wake up events for S0ix residency
Disable PMC S0IX_WAKE_EN events coming from LPC block(unused) and also from GPIO_SUS ored dedicated IRQs (must be disabled as per PMC programming rule), GPIOSCORE ored dedicated IRQs (must be disabled as per PMC programming rule), GPIO_SUS shared IRQ (not necessary since the IOAPIC_DS wake event will still work), GPIO_SCORE shared IRQ (not necessary since the IOAPIC_DS wake event will still work). Signed-off-by: Aubrey Li <aubrey.li@linux.intel.com> Link: http://lkml.kernel.org/r/53B0FF22.5080403@linux.intel.com Signed-off-by: Olivier Leveque <olivier.leveque@intel.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/include')
-rw-r--r--arch/x86/include/asm/pmc_atom.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/include/asm/pmc_atom.h b/arch/x86/include/asm/pmc_atom.h
index 03a2769f2d7..8e47e5d10e1 100644
--- a/arch/x86/include/asm/pmc_atom.h
+++ b/arch/x86/include/asm/pmc_atom.h
@@ -19,6 +19,27 @@
/* ValleyView Power Control Unit PCI Device ID */
#define PCI_DEVICE_ID_VLV_PMC 0x0F1C
+/* PMC Memory mapped IO registers */
+#define PMC_BASE_ADDR_OFFSET 0x44
+#define PMC_BASE_ADDR_MASK 0xFFFFFE00
+#define PMC_MMIO_REG_LEN 0x100
+#define PMC_REG_BIT_WIDTH 32
+
+/* S0ix wake event control */
+#define PMC_S0IX_WAKE_EN 0x3C
+
+#define BIT_LPC_CLOCK_RUN BIT(4)
+#define BIT_SHARED_IRQ_GPSC BIT(5)
+#define BIT_ORED_DEDICATED_IRQ_GPSS BIT(18)
+#define BIT_ORED_DEDICATED_IRQ_GPSC BIT(19)
+#define BIT_SHARED_IRQ_GPSS BIT(20)
+
+#define PMC_WAKE_EN_SETTING ~(BIT_LPC_CLOCK_RUN | \
+ BIT_SHARED_IRQ_GPSC | \
+ BIT_ORED_DEDICATED_IRQ_GPSS | \
+ BIT_ORED_DEDICATED_IRQ_GPSC | \
+ BIT_SHARED_IRQ_GPSS)
+
/* PMC I/O Registers */
#define ACPI_BASE_ADDR_OFFSET 0x40
#define ACPI_BASE_ADDR_MASK 0xFFFFFE00