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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-21 10:35:11 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-21 10:35:11 -0800
commit8552d28e140110fc935b39a6bfaf33c8ce3a1ad5 (patch)
tree8102bc58bb5be253a7df0993d8d06a128cbc125e /arch
parent70990afa34fbac03ade78e2ad0ccd418acecfc04 (diff)
parent8b22820efb35f93d98638563b0a8f4094e8ee399 (diff)
downloadlinux-stericsson-8552d28e140110fc935b39a6bfaf33c8ce3a1ad5.tar.gz
Merge tag 'm68knommu-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer: - cleanup of 68328 code - align BSS section to 32bit * tag 'm68knommu-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: m68328: remove duplicate code m68k: m68328: move platform code to separate files m68knommu: align BSS section to 4-byte boundaries
Diffstat (limited to 'arch')
-rw-r--r--arch/m68k/68000/Makefile9
-rw-r--r--arch/m68k/68000/dragen2.c100
-rw-r--r--arch/m68k/68000/m68328.c32
-rw-r--r--arch/m68k/68000/m68328.h5
-rw-r--r--arch/m68k/68000/m68EZ328.c77
-rw-r--r--arch/m68k/68000/m68VZ328.c189
-rw-r--r--arch/m68k/68000/ucsimm.c38
-rw-r--r--arch/m68k/Kconfig.cpu8
-rw-r--r--arch/m68k/Kconfig.machine16
-rw-r--r--arch/m68k/kernel/setup_no.c9
-rw-r--r--arch/m68k/kernel/vmlinux-nommu.lds2
11 files changed, 192 insertions, 293 deletions
diff --git a/arch/m68k/68000/Makefile b/arch/m68k/68000/Makefile
index 4f7d4b45a46f..674541fdf5b8 100644
--- a/arch/m68k/68000/Makefile
+++ b/arch/m68k/68000/Makefile
@@ -10,10 +10,11 @@
# 68328, 68EZ328, 68VZ328
-obj-y += entry.o ints.o timers.o
-obj-$(CONFIG_M68328) += m68328.o
-obj-$(CONFIG_M68EZ328) += m68EZ328.o
-obj-$(CONFIG_M68VZ328) += m68VZ328.o
+obj-y += entry.o ints.o timers.o m68328.o
obj-$(CONFIG_ROM) += romvec.o
+obj-$(CONFIG_DRAGEN2) += dragen2.o
+obj-$(CONFIG_UCSIMM) += ucsimm.o
+obj-$(CONFIG_UCDIMM) += ucsimm.o
+
extra-y := head.o
diff --git a/arch/m68k/68000/dragen2.c b/arch/m68k/68000/dragen2.c
new file mode 100644
index 000000000000..584893c57c37
--- /dev/null
+++ b/arch/m68k/68000/dragen2.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 1993 Hamish Macdonald
+ * Copyright (C) 1999 D. Jeff Dionne
+ * Copyright (C) 2001 Georges Menie, Ken Desmet
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+/***************************************************************************/
+/* Init Drangon Engine hardware */
+/***************************************************************************/
+
+static void dragen2_reset(void)
+{
+ local_irq_disable();
+
+#ifdef CONFIG_INIT_LCD
+ PBDATA |= 0x20; /* disable CCFL light */
+ PKDATA |= 0x4; /* disable LCD controller */
+ LCKCON = 0;
+#endif
+
+ __asm__ __volatile__(
+ "reset\n\t"
+ "moveal #0x04000000, %a0\n\t"
+ "moveal 0(%a0), %sp\n\t"
+ "moveal 4(%a0), %a0\n\t"
+ "jmp (%a0)"
+ );
+}
+
+void __init init_dragen2(char *command, int size)
+{
+ mach_reset = dragen2_reset;
+
+#ifdef CONFIG_DIRECT_IO_ACCESS
+ SCR = 0x10; /* allow user access to internal registers */
+#endif
+
+ /* CSGB Init */
+ CSGBB = 0x4000;
+ CSB = 0x1a1;
+
+ /* CS8900 init */
+ /* PK3: hardware sleep function pin, active low */
+ PKSEL |= PK(3); /* select pin as I/O */
+ PKDIR |= PK(3); /* select pin as output */
+ PKDATA |= PK(3); /* set pin high */
+
+ /* PF5: hardware reset function pin, active high */
+ PFSEL |= PF(5); /* select pin as I/O */
+ PFDIR |= PF(5); /* select pin as output */
+ PFDATA &= ~PF(5); /* set pin low */
+
+ /* cs8900 hardware reset */
+ PFDATA |= PF(5);
+ { int i; for (i = 0; i < 32000; ++i); }
+ PFDATA &= ~PF(5);
+
+ /* INT1 enable (cs8900 IRQ) */
+ PDPOL &= ~PD(1); /* active high signal */
+ PDIQEG &= ~PD(1);
+ PDIRQEN |= PD(1); /* IRQ enabled */
+
+#ifdef CONFIG_INIT_LCD
+ /* initialize LCD controller */
+ LSSA = (long) screen_bits;
+ LVPW = 0x14;
+ LXMAX = 0x140;
+ LYMAX = 0xef;
+ LRRA = 0;
+ LPXCD = 3;
+ LPICF = 0x08;
+ LPOLCF = 0;
+ LCKCON = 0x80;
+ PCPDEN = 0xff;
+ PCSEL = 0;
+
+ /* Enable LCD controller */
+ PKDIR |= 0x4;
+ PKSEL |= 0x4;
+ PKDATA &= ~0x4;
+
+ /* Enable CCFL backlighting circuit */
+ PBDIR |= 0x20;
+ PBSEL |= 0x20;
+ PBDATA &= ~0x20;
+
+ /* contrast control register */
+ PFDIR |= 0x1;
+ PFSEL &= ~0x1;
+ PWMR = 0x037F;
+#endif
+}
diff --git a/arch/m68k/68000/m68328.c b/arch/m68k/68000/m68328.c
index 419751b15ec8..eab08da058c6 100644
--- a/arch/m68k/68000/m68328.c
+++ b/arch/m68k/68000/m68328.c
@@ -1,10 +1,11 @@
/***************************************************************************/
/*
- * m68328.c - 68328 specific config
+ * m68328.c - 68328/68EZ328/68VZ328 specific config
*
* Copyright (C) 1993 Hamish Macdonald
* Copyright (C) 1999 D. Jeff Dionne
+ * Copyright (C) 2001 Georges Menie, Ken Desmet
*
* 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
@@ -20,18 +21,18 @@
#include <linux/kernel.h>
#include <linux/rtc.h>
#include <asm/machdep.h>
-#include <asm/MC68328.h>
-#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
+
+#if defined(CONFIG_INIT_LCD) && defined(CONFIG_M68VZ328)
+#include "bootlogo-vz.h"
+#elif defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD)
#include "bootlogo.h"
#endif
-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
+#include "m68328.h"
/***************************************************************************/
-void m68328_reset (void)
+static void m68328_reset(void)
{
local_irq_disable();
asm volatile ("moveal #0x10c00000, %a0;\n\t"
@@ -45,12 +46,19 @@ void m68328_reset (void)
void __init config_BSP(char *command, int len)
{
- pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
- pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n");
- pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n");
+ mach_sched_init = hw_timer_init;
+ mach_hwclk = m68328_hwclk;
+ mach_reset = m68328_reset;
- mach_hwclk = m68328_hwclk;
- mach_reset = m68328_reset;
+#if defined(CONFIG_PILOT) && defined(CONFIG_M68328)
+ mach_sched_init = NULL;
+#elif defined(CONFIG_UCSIMM)
+ init_ucsimm(command, len);
+#elif defined(CONFIG_UCDIMM)
+ init_ucsimm(command, len);
+#elif defined(CONFIG_DRAGEN2)
+ init_dragen2(command, len);
+#endif
}
/***************************************************************************/
diff --git a/arch/m68k/68000/m68328.h b/arch/m68k/68000/m68328.h
new file mode 100644
index 000000000000..f6047c3168d4
--- /dev/null
+++ b/arch/m68k/68000/m68328.h
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+void init_dragen2(char *command, int size);
+void init_ucsimm(char *command, int size);
+struct rtc_time;
+int m68328_hwclk(int set, struct rtc_time *t);
diff --git a/arch/m68k/68000/m68EZ328.c b/arch/m68k/68000/m68EZ328.c
deleted file mode 100644
index 05f137dc257e..000000000000
--- a/arch/m68k/68000/m68EZ328.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/***************************************************************************/
-
-/*
- * m68EZ328.c - 68EZ328 specific config
- *
- * Copyright (C) 1993 Hamish Macdonald
- * Copyright (C) 1999 D. Jeff Dionne
- *
- * 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.
- */
-
-/***************************************************************************/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/rtc.h>
-#include <linux/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/MC68EZ328.h>
-#ifdef CONFIG_UCSIMM
-#include <asm/bootstd.h>
-#endif
-
-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
-
-/***************************************************************************/
-
-void m68ez328_reset(void)
-{
- local_irq_disable();
- asm volatile (
- "moveal #0x10c00000, %a0;\n"
- "moveb #0, 0xFFFFF300;\n"
- "moveal 0(%a0), %sp;\n"
- "moveal 4(%a0), %a0;\n"
- "jmp (%a0);\n"
- );
-}
-
-/***************************************************************************/
-
-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-#ifdef CONFIG_UCSIMM
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-#endif
-
-void __init config_BSP(char *command, int len)
-{
- unsigned char *p;
-
- pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
-
-#ifdef CONFIG_UCSIMM
- pr_info("uCsimm serial string [%s]\n", getserialnum());
- p = cs8900a_hwaddr = gethwaddr(0);
- pr_info("uCsimm hwaddr %pM\n", p);
-
- p = getbenv("APPEND");
- if (p) strcpy(p,command);
- else command[0] = 0;
-#endif
-
- mach_sched_init = hw_timer_init;
- mach_hwclk = m68328_hwclk;
- mach_reset = m68ez328_reset;
-}
-
-/***************************************************************************/
diff --git a/arch/m68k/68000/m68VZ328.c b/arch/m68k/68000/m68VZ328.c
deleted file mode 100644
index ada87b23afdc..000000000000
--- a/arch/m68k/68000/m68VZ328.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/***************************************************************************/
-
-/*
- * m68VZ328.c - 68VZ328 specific config
- *
- * Copyright (C) 1993 Hamish Macdonald
- * Copyright (C) 1999 D. Jeff Dionne
- * Copyright (C) 2001 Georges Menie, Ken Desmet
- *
- * 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.
- */
-
-/***************************************************************************/
-
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/kd.h>
-#include <linux/netdevice.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/rtc.h>
-#include <linux/pgtable.h>
-
-#include <asm/machdep.h>
-#include <asm/MC68VZ328.h>
-#include <asm/bootstd.h>
-
-#ifdef CONFIG_INIT_LCD
-#include "bootlogo-vz.h"
-#endif
-
-/***************************************************************************/
-
-int m68328_hwclk(int set, struct rtc_time *t);
-
-/***************************************************************************/
-/* Init Drangon Engine hardware */
-/***************************************************************************/
-#if defined(CONFIG_DRAGEN2)
-
-static void m68vz328_reset(void)
-{
- local_irq_disable();
-
-#ifdef CONFIG_INIT_LCD
- PBDATA |= 0x20; /* disable CCFL light */
- PKDATA |= 0x4; /* disable LCD controller */
- LCKCON = 0;
-#endif
-
- __asm__ __volatile__(
- "reset\n\t"
- "moveal #0x04000000, %a0\n\t"
- "moveal 0(%a0), %sp\n\t"
- "moveal 4(%a0), %a0\n\t"
- "jmp (%a0)"
- );
-}
-
-static void __init init_hardware(char *command, int size)
-{
-#ifdef CONFIG_DIRECT_IO_ACCESS
- SCR = 0x10; /* allow user access to internal registers */
-#endif
-
- /* CSGB Init */
- CSGBB = 0x4000;
- CSB = 0x1a1;
-
- /* CS8900 init */
- /* PK3: hardware sleep function pin, active low */
- PKSEL |= PK(3); /* select pin as I/O */
- PKDIR |= PK(3); /* select pin as output */
- PKDATA |= PK(3); /* set pin high */
-
- /* PF5: hardware reset function pin, active high */
- PFSEL |= PF(5); /* select pin as I/O */
- PFDIR |= PF(5); /* select pin as output */
- PFDATA &= ~PF(5); /* set pin low */
-
- /* cs8900 hardware reset */
- PFDATA |= PF(5);
- { int i; for (i = 0; i < 32000; ++i); }
- PFDATA &= ~PF(5);
-
- /* INT1 enable (cs8900 IRQ) */
- PDPOL &= ~PD(1); /* active high signal */
- PDIQEG &= ~PD(1);
- PDIRQEN |= PD(1); /* IRQ enabled */
-
-#ifdef CONFIG_INIT_LCD
- /* initialize LCD controller */
- LSSA = (long) screen_bits;
- LVPW = 0x14;
- LXMAX = 0x140;
- LYMAX = 0xef;
- LRRA = 0;
- LPXCD = 3;
- LPICF = 0x08;
- LPOLCF = 0;
- LCKCON = 0x80;
- PCPDEN = 0xff;
- PCSEL = 0;
-
- /* Enable LCD controller */
- PKDIR |= 0x4;
- PKSEL |= 0x4;
- PKDATA &= ~0x4;
-
- /* Enable CCFL backlighting circuit */
- PBDIR |= 0x20;
- PBSEL |= 0x20;
- PBDATA &= ~0x20;
-
- /* contrast control register */
- PFDIR |= 0x1;
- PFSEL &= ~0x1;
- PWMR = 0x037F;
-#endif
-}
-
-/***************************************************************************/
-/* Init RT-Control uCdimm hardware */
-/***************************************************************************/
-#elif defined(CONFIG_UCDIMM)
-
-static void m68vz328_reset(void)
-{
- local_irq_disable();
- asm volatile (
- "moveal #0x10c00000, %a0;\n\t"
- "moveb #0, 0xFFFFF300;\n\t"
- "moveal 0(%a0), %sp;\n\t"
- "moveal 4(%a0), %a0;\n\t"
- "jmp (%a0);\n"
- );
-}
-
-unsigned char *cs8900a_hwaddr;
-static int errno;
-
-_bsc0(char *, getserialnum)
-_bsc1(unsigned char *, gethwaddr, int, a)
-_bsc1(char *, getbenv, char *, a)
-
-static void __init init_hardware(char *command, int size)
-{
- char *p;
-
- pr_info("uCdimm serial string [%s]\n", getserialnum());
- p = cs8900a_hwaddr = gethwaddr(0);
- pr_info("uCdimm hwaddr %pM\n", p);
- p = getbenv("APPEND");
- if (p)
- strcpy(p, command);
- else
- command[0] = 0;
-}
-
-/***************************************************************************/
-#else
-
-static void m68vz328_reset(void)
-{
-}
-
-static void __init init_hardware(char *command, int size)
-{
-}
-
-/***************************************************************************/
-#endif
-/***************************************************************************/
-
-void __init config_BSP(char *command, int size)
-{
- pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
-
- init_hardware(command, size);
-
- mach_sched_init = hw_timer_init;
- mach_hwclk = m68328_hwclk;
- mach_reset = m68vz328_reset;
-}
-
-/***************************************************************************/
diff --git a/arch/m68k/68000/ucsimm.c b/arch/m68k/68000/ucsimm.c
new file mode 100644
index 000000000000..7c6cbf643712
--- /dev/null
+++ b/arch/m68k/68000/ucsimm.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 1993 Hamish Macdonald
+ * Copyright (C) 1999 D. Jeff Dionne
+ * Copyright (C) 2001 Georges Menie, Ken Desmet
+ *
+ * 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.
+ */
+#include <linux/init.h>
+#include <asm/bootstd.h>
+#include <asm/machdep.h>
+#include <asm/MC68VZ328.h>
+
+
+#include "m68328.h"
+
+unsigned char *cs8900a_hwaddr;
+static int errno;
+
+_bsc0(char *, getserialnum)
+_bsc1(unsigned char *, gethwaddr, int, a)
+_bsc1(char *, getbenv, char *, a)
+
+void __init init_ucsimm(char *command, int size)
+{
+ char *p;
+
+ pr_info("uCsimm/uCdimm serial string [%s]\n", getserialnum());
+ p = cs8900a_hwaddr = gethwaddr(0);
+ pr_info("uCsimm/uCdimm hwaddr %pM\n", p);
+ p = getbenv("APPEND");
+ if (p)
+ strcpy(p, command);
+ else
+ command[0] = 0;
+}
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 7246aa50298e..f4d23977d2a5 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -36,7 +36,7 @@ endchoice
if M68KCLASSIC
config M68000
- bool "MC68000"
+ bool
depends on !MMU
select CPU_HAS_NO_BITFIELDS
select CPU_HAS_NO_MULDIV64
@@ -103,7 +103,7 @@ config M68060
processor, say Y. Otherwise, say N.
config M68328
- bool "MC68328"
+ bool
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
@@ -111,7 +111,7 @@ config M68328
Motorola 68328 processor support.
config M68EZ328
- bool "MC68EZ328"
+ bool
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
@@ -119,7 +119,7 @@ config M68EZ328
Motorola 68EX328 processor support.
config M68VZ328
- bool "MC68VZ328"
+ bool
depends on !MMU
select LEGACY_TIMER_TICK
select M68000
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index cf6961d4e657..4d59ec2f5b8d 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -145,14 +145,13 @@ config SUN3
If you don't want to compile a kernel exclusively for a Sun 3, say N.
-endif # M68KCLASSIC
-
config PILOT
bool
config PILOT3
bool "Pilot 1000/5000, PalmPilot Personal/Pro, or PalmIII support"
- depends on M68328
+ depends on !MMU
+ select M68328
select PILOT
help
Support for the Palm Pilot 1000/5000, Personal/Pro and PalmIII.
@@ -165,19 +164,22 @@ config XCOPILOT_BUGS
config UCSIMM
bool "uCsimm module support"
- depends on M68EZ328
+ depends on !MMU
+ select M68EZ328
help
Support for the Arcturus Networks uCsimm module.
config UCDIMM
bool "uDsimm module support"
- depends on M68VZ328
+ depends on !MMU
+ select M68VZ328
help
Support for the Arcturus Networks uDsimm module.
config DRAGEN2
bool "DragenEngine II board support"
- depends on M68VZ328
+ depends on !MMU
+ select M68VZ328
help
Support for the DragenEngine II board.
@@ -200,6 +202,8 @@ config MEMORY_RESERVE
help
Reserve certain memory regions on 68x328 based boards.
+endif # M68KCLASSIC
+
config ARN5206
bool "Arnewsh 5206 board support"
depends on M5206
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index e377b4219528..d1b7988efc91 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -106,8 +106,16 @@ void __init setup_arch(char **cmdline_p)
#ifdef CONFIG_UCDIMM
pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
#endif
+#ifdef CONFIG_M68328
+ pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
+ pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n");
+#endif
+#ifdef CONFIG_M68EZ328
+ pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
+#endif
#ifdef CONFIG_M68VZ328
pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
+ pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
#endif
#ifdef CONFIG_COLDFIRE
pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
@@ -121,6 +129,7 @@ void __init setup_arch(char **cmdline_p)
pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
+ pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n");
pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n");
#endif
#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds
index 396e126a4258..387f334e87d3 100644
--- a/arch/m68k/kernel/vmlinux-nommu.lds
+++ b/arch/m68k/kernel/vmlinux-nommu.lds
@@ -81,7 +81,7 @@ SECTIONS {
__init_end = .;
}
- BSS_SECTION(0, 0, 0)
+ BSS_SECTION(4, 0, 4)
_end = .;