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Merge branch 'arm/booting' of git://git.pengutronix.de/git/ukl/linux-2.6 into devel-stable

Browse Source 
Conflicts:
	arch/arm/Kconfig
This commit is contained in:
Russell King 2010-07-29 22:27:56 +01:00
commit a20df564d1
10 changed files with 152 additions and 79 deletions
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105
arch/arm/Kconfig
View File

@ -1404,6 +1404,12 @@ config CC_STACKPROTECTOR
neutralized via a kernel panic.
This feature requires gcc version 4.2 or above.
config DEPRECATED_PARAM_STRUCT
bool "Provide old way to pass kernel parameters"
help
This was deprecated in 2001 and announced to live on for 5 years.
Some old boot loaders still use this way.
endmenu
menu "Boot options"
@ -1514,6 +1520,105 @@ config ATAGS_PROC
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
config AUTO_ZRELADDR
bool "Auto calculation of the decompressed kernel image address"
depends on !ZBOOT_ROM && !ARCH_U300
help
ZRELADDR is the physical address where the decompressed kernel
image will be placed. If AUTO_ZRELADDR is selected, the address
will be determined at run-time by masking the current IP with
0xf8000000. This assumes the zImage being placed in the first 128MB
from start of memory.
config ZRELADDR
hex "Physical address of the decompressed kernel image"
depends on !AUTO_ZRELADDR
default 0x00008000 if ARCH_BCMRING ||\
ARCH_CNS3XXX ||\
ARCH_DOVE ||\
ARCH_EBSA110 ||\
ARCH_FOOTBRIDGE ||\
ARCH_INTEGRATOR ||\
ARCH_IOP13XX ||\
ARCH_IOP33X ||\
ARCH_IXP2000 ||\
ARCH_IXP23XX ||\
ARCH_IXP4XX ||\
ARCH_KIRKWOOD ||\
ARCH_KS8695 ||\
ARCH_LOKI ||\
ARCH_MMP ||\
ARCH_MV78XX0 ||\
ARCH_NOMADIK ||\
ARCH_NUC93X ||\
ARCH_NS9XXX ||\
ARCH_ORION5X ||\
ARCH_SPEAR3XX ||\
ARCH_SPEAR6XX ||\
ARCH_U8500 ||\
ARCH_VERSATILE ||\
ARCH_W90X900
default 0x08008000 if ARCH_MX1 ||\
ARCH_SHARK
default 0x10008000 if ARCH_MSM ||\
ARCH_OMAP1 ||\
ARCH_RPC
default 0x20008000 if ARCH_S5P6440 ||\
ARCH_S5P6442 ||\
ARCH_S5PC100 ||\
ARCH_S5PV210
default 0x30008000 if ARCH_S3C2410 ||\
ARCH_S3C2400 ||\
ARCH_S3C2412 ||\
ARCH_S3C2416 ||\
ARCH_S3C2440 ||\
ARCH_S3C2443
default 0x40008000 if ARCH_STMP378X ||\
ARCH_STMP37XX ||\
ARCH_SH7372 ||\
ARCH_SH7377
default 0x50008000 if ARCH_S3C64XX ||\
ARCH_SH7367
default 0x60008000 if ARCH_VEXPRESS
default 0x80008000 if ARCH_MX25 ||\
ARCH_MX3 ||\
ARCH_NETX ||\
ARCH_OMAP2PLUS ||\
ARCH_PNX4008
default 0x90008000 if ARCH_MX5 ||\
ARCH_MX91231
default 0xa0008000 if ARCH_IOP32X ||\
ARCH_PXA ||\
MACH_MX27
default 0xc0008000 if ARCH_LH7A40X ||\
MACH_MX21
default 0xf0008000 if ARCH_AAEC2000 ||\
ARCH_L7200
default 0xc0028000 if ARCH_CLPS711X
default 0x70008000 if ARCH_AT91 && (ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
default 0x20008000 if ARCH_AT91 && !(ARCH_AT91CAP9 || ARCH_AT91SAM9G45)
default 0xc0008000 if ARCH_DAVINCI && ARCH_DAVINCI_DA8XX
default 0x80008000 if ARCH_DAVINCI && !ARCH_DAVINCI_DA8XX
default 0x00008000 if ARCH_EP93XX && EP93XX_SDCE3_SYNC_PHYS_OFFSET
default 0xc0008000 if ARCH_EP93XX && EP93XX_SDCE0_PHYS_OFFSET
default 0xd0008000 if ARCH_EP93XX && EP93XX_SDCE1_PHYS_OFFSET
default 0xe0008000 if ARCH_EP93XX && EP93XX_SDCE2_PHYS_OFFSET
default 0xf0008000 if ARCH_EP93XX && EP93XX_SDCE3_ASYNC_PHYS_OFFSET
default 0x00008000 if ARCH_GEMINI && GEMINI_MEM_SWAP
default 0x10008000 if ARCH_GEMINI && !GEMINI_MEM_SWAP
default 0x70008000 if ARCH_REALVIEW && REALVIEW_HIGH_PHYS_OFFSET
default 0x00008000 if ARCH_REALVIEW && !REALVIEW_HIGH_PHYS_OFFSET
default 0xc0208000 if ARCH_SA1100 && SA1111
default 0xc0008000 if ARCH_SA1100 && !SA1111
default 0x30108000 if ARCH_S3C2410 && PM_H1940
default 0x28E08000 if ARCH_U300 && MACH_U300_SINGLE_RAM
default 0x48008000 if ARCH_U300 && !MACH_U300_SINGLE_RAM
help
ZRELADDR is the physical address where the decompressed kernel
image will be placed. ZRELADDR has to be specified when the
assumption of AUTO_ZRELADDR is not valid, or when ZBOOT_ROM is
selected.
endmenu
menu "CPU Power Management"

8
arch/arm/boot/Makefile
View File

@ -14,18 +14,16 @@
MKIMAGE := $(srctree)/scripts/mkuboot.sh
ifneq ($(MACHINE),)
include $(srctree)/$(MACHINE)/Makefile.boot
-include $(srctree)/$(MACHINE)/Makefile.boot
endif
# Note: the following conditions must always be true:
# ZRELADDR == virt_to_phys(PAGE_OFFSET + TEXT_OFFSET)
# PARAMS_PHYS must be within 4MB of ZRELADDR
# INITRD_PHYS must be in RAM
ZRELADDR := $(zreladdr-y)
PARAMS_PHYS := $(params_phys-y)
INITRD_PHYS := $(initrd_phys-y)
export ZRELADDR INITRD_PHYS PARAMS_PHYS
export INITRD_PHYS PARAMS_PHYS
targets := Image zImage xipImage bootpImage uImage
@ -67,7 +65,7 @@ quiet_cmd_uimage = UIMAGE $@
ifeq ($(CONFIG_ZBOOT_ROM),y)
$(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
else
$(obj)/uImage: LOADADDR=$(ZRELADDR)
$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR)
endif
ifeq ($(CONFIG_THUMB2_KERNEL),y)

11
arch/arm/boot/compressed/Makefile
View File

@ -4,6 +4,7 @@
# create a compressed vmlinuz image from the original vmlinux
#
AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
OBJS = misc.o decompress.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
@ -79,19 +80,9 @@ endif
EXTRA_CFLAGS := -fpic -fno-builtin
EXTRA_AFLAGS := -Wa,-march=all
# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
# linker symbols. We only define initrd_phys and params_phys if the
# machine class defined the corresponding makefile variable.
LDFLAGS_vmlinux := --defsym zreladdr=$(ZRELADDR)
ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
LDFLAGS_vmlinux += --be8
endif
ifneq ($(INITRD_PHYS),)
LDFLAGS_vmlinux += --defsym initrd_phys=$(INITRD_PHYS)
endif
ifneq ($(PARAMS_PHYS),)
LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
endif
# ?
LDFLAGS_vmlinux += -p
# Report unresolved symbol references

23
arch/arm/boot/compressed/Makefile.debug
View File

@ -1,23 +0,0 @@
#
# linux/arch/arm/boot/compressed/Makefile
#
# create a compressed vmlinux image from the original vmlinux
#
COMPRESSED_EXTRA=../../lib/ll_char_wr.o
OBJECTS=misc-debug.o ll_char_wr.aout.o
CFLAGS=-D__KERNEL__ -O2 -DSTDC_HEADERS -DSTANDALONE_DEBUG -Wall -I../../../../include -c
test-gzip: piggy.aout.o $(OBJECTS)
$(CC) -o $@ $(OBJECTS) piggy.aout.o
misc-debug.o: misc.c
$(CC) $(CFLAGS) -o $@ misc.c
piggy.aout.o: piggy.o
arm-linuxelf-objcopy --change-leading-char -I elf32-arm -O arm-aout32-linux piggy.o piggy.aout.o
ll_char_wr.aout.o: $(COMPRESSED_EXTRA)
arm-linuxelf-objcopy --change-leading-char -I elf32-arm -O arm-aout32-linux $(COMPRESSED_EXTRA) ll_char_wr.aout.o

40
arch/arm/boot/compressed/head.S
View File

@ -170,9 +170,16 @@ not_angel:
.text
adr r0, LC0
ARM( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip, sp})
THUMB( ldmia r0, {r1, r2, r3, r4, r5, r6, r11, ip} )
ARM( ldmia r0, {r1, r2, r3, r5, r6, r11, ip, sp})
THUMB( ldmia r0, {r1, r2, r3, r5, r6, r11, ip} )
THUMB( ldr sp, [r0, #32] )
#ifdef CONFIG_AUTO_ZRELADDR
@ determine final kernel image address
and r4, pc, #0xf8000000
add r4, r4, #TEXT_OFFSET
#else
ldr r4, =CONFIG_ZRELADDR
#endif
subs r0, r0, r1 @ calculate the delta offset
@ if delta is zero, we are
@ -310,18 +317,17 @@ wont_overwrite: mov r0, r4
LC0: .word LC0 @ r1
.word __bss_start @ r2
.word _end @ r3
.word zreladdr @ r4
.word _start @ r5
.word _image_size @ r6
.word _got_start @ r11
.word _got_end @ ip
.word user_stack+4096 @ sp
.word user_stack_end @ sp
LC1: .word reloc_end - reloc_start
.size LC0, . - LC0
#ifdef CONFIG_ARCH_RPC
.globl params
params: ldr r0, =params_phys
params: ldr r0, =0x10000100 @ params_phys for RPC
mov pc, lr
.ltorg
.align
@ -339,9 +345,8 @@ params: ldr r0, =params_phys
* r4 = kernel execution address
* r7 = architecture number
* r8 = atags pointer
* r9 = run-time address of "start" (???)
* On exit,
* r1, r2, r3, r9, r10, r12 corrupted
* r0, r1, r2, r3, r9, r10, r12 corrupted
* This routine must preserve:
* r4, r5, r6, r7, r8
*/
@ -396,12 +401,18 @@ __armv3_mpu_cache_on:
mov r0, #0
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
/*
* ?? ARMv3 MMU does not allow reading the control register,
* does this really work on ARMv3 MPU?
*/
mrc p15, 0, r0, c1, c0, 0 @ read control reg
@ .... .... .... WC.M
orr r0, r0, #0x000d @ .... .... .... 11.1
/* ?? this overwrites the value constructed above? */
mov r0, #0
mcr p15, 0, r0, c1, c0, 0 @ write control reg
/* ?? invalidate for the second time? */
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
mov pc, lr
@ -771,8 +782,10 @@ proc_types:
* Turn off the Cache and MMU. ARMv3 does not support
* reading the control register, but ARMv4 does.
*
* On exit, r0, r1, r2, r3, r9, r12 corrupted
* This routine must preserve: r4, r6, r7
* On exit,
* r0, r1, r2, r3, r9, r12 corrupted
* This routine must preserve:
* r4, r6, r7
*/
.align 5
cache_off: mov r3, #12 @ cache_off function
@ -845,7 +858,7 @@ __armv3_mmu_cache_off:
* Clean and flush the cache to maintain consistency.
*
* On exit,
* r1, r2, r3, r9, r11, r12 corrupted
* r1, r2, r3, r9, r10, r11, r12 corrupted
* This routine must preserve:
* r0, r4, r5, r6, r7
*/
@ -988,7 +1001,7 @@ no_cache_id:
__armv3_mmu_cache_flush:
__armv3_mpu_cache_flush:
mov r1, #0
mcr p15, 0, r0, c7, c0, 0 @ invalidate whole cache v3
mcr p15, 0, r1, c7, c0, 0 @ invalidate whole cache v3
mov pc, lr
/*
@ -1001,6 +1014,7 @@ __armv3_mpu_cache_flush:
phexbuf: .space 12
.size phexbuf, . - phexbuf
@ phex corrupts {r0, r1, r2, r3}
phex: adr r3, phexbuf
mov r2, #0
strb r2, [r3, r1]
@ -1015,6 +1029,7 @@ phex: adr r3, phexbuf
strb r2, [r3, r1]
b 1b
@ puts corrupts {r0, r1, r2, r3}
puts: loadsp r3, r1
1: ldrb r2, [r0], #1
teq r2, #0
@ -1029,12 +1044,14 @@ puts: loadsp r3, r1
teq r0, #0
bne 1b
mov pc, lr
@ putc corrupts {r0, r1, r2, r3}
putc:
mov r2, r0
mov r0, #0
loadsp r3, r1
b 2b
@ memdump corrupts {r0, r1, r2, r3, r10, r11, r12, lr}
memdump: mov r12, r0
mov r10, lr
mov r11, #0
@ -1070,3 +1087,4 @@ reloc_end:
.align
.section ".stack", "w"
user_stack: .space 4096
user_stack_end:

20
arch/arm/boot/compressed/misc.c
View File

@ -28,9 +28,6 @@ unsigned int __machine_arch_type;
#include <asm/unaligned.h>
#ifdef STANDALONE_DEBUG
#define putstr printf
#else
static void putstr(const char *ptr);
extern void error(char *x);
@ -116,7 +113,6 @@ static void putstr(const char *ptr)
flush();
}
#endif
void *memcpy(void *__dest, __const void *__src, size_t __n)
{
@ -186,7 +182,6 @@ asmlinkage void __div0(void)
extern void do_decompress(u8 *input, int len, u8 *output, void (*error)(char *x));
#ifndef STANDALONE_DEBUG
unsigned long
decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
@ -211,18 +206,3 @@ decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
putstr(" done, booting the kernel.\n");
return output_ptr;
}
#else
char output_buffer[1500*1024];
int main()
{
output_data = output_buffer;
putstr("Uncompressing Linux...");
decompress(input_data, input_data_end - input_data,
NULL, NULL, output_data, NULL, error);
putstr("done.\n");
return 0;
}
#endif

4
arch/arm/kernel/Makefile
View File

@ -13,10 +13,12 @@ CFLAGS_REMOVE_return_address.o = -pg
# Object file lists.
obj-y := compat.o elf.o entry-armv.o entry-common.o irq.o \
obj-y := elf.o entry-armv.o entry-common.o irq.o \
process.o ptrace.o return_address.o setup.o signal.o \
sys_arm.o stacktrace.o time.o traps.o
obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += compat.o
obj-$(CONFIG_LEDS) += leds.o
obj-$(CONFIG_OC_ETM) += etm.o

7
arch/arm/kernel/compat.c
View File

@ -217,10 +217,3 @@ void __init convert_to_tag_list(struct tag *tags)
struct param_struct *params = (struct param_struct *)tags;
build_tag_list(params, &params->u2);
}
void __init squash_mem_tags(struct tag *tag)
{
for (; tag->hdr.size; tag = tag_next(tag))
if (tag->hdr.tag == ATAG_MEM)
tag->hdr.tag = ATAG_NONE;
}

2
arch/arm/kernel/compat.h
View File

@ -9,5 +9,3 @@
*/
extern void convert_to_tag_list(struct tag *tags);
extern void squash_mem_tags(struct tag *tag);

11
arch/arm/kernel/setup.c
View File

@ -44,7 +44,9 @@
#include <asm/traps.h>
#include <asm/unwind.h>
#if defined(CONFIG_DEPRECATED_PARAM_STRUCT)
#include "compat.h"
#endif
#include "atags.h"
#include "tcm.h"
@ -663,6 +665,13 @@ static int __init customize_machine(void)
}
arch_initcall(customize_machine);
static void __init squash_mem_tags(struct tag *tag)
{
for (; tag->hdr.size; tag = tag_next(tag))
if (tag->hdr.tag == ATAG_MEM)
tag->hdr.tag = ATAG_NONE;
}
void __init setup_arch(char **cmdline_p)
{
struct tag *tags = (struct tag *)&init_tags;
@ -683,12 +692,14 @@ void __init setup_arch(char **cmdline_p)
else if (mdesc->boot_params)
tags = phys_to_virt(mdesc->boot_params);
#if defined(CONFIG_DEPRECATED_PARAM_STRUCT)
/*
* If we have the old style parameters, convert them to
* a tag list.
*/
if (tags->hdr.tag != ATAG_CORE)
convert_to_tag_list(tags);
#endif
if (tags->hdr.tag != ATAG_CORE)
tags = (struct tag *)&init_tags;