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"
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"
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 := $(initrd_phys-y)
-export ZRELADDR INITRD_PHYS PARAMS_PHYS
+export INITRD_PHYS PARAMS_PHYS
targets := Image zImage xipImage bootpImage uImage
ifeq ($(CONFIG_ZBOOT_ROM),y)
$(obj)/uImage: LOADADDR=$(CONFIG_ZBOOT_ROM_TEXT)
else
-$(obj)/uImage: LOADADDR=$(ZRELADDR)
+$(obj)/uImage: LOADADDR=$(CONFIG_ZRELADDR)
endif
ifeq ($(CONFIG_THUMB2_KERNEL),y)
# create a compressed vmlinuz image from the original vmlinux
#
+AFLAGS_head.o += -DTEXT_OFFSET=$(TEXT_OFFSET)
HEAD = head.o
OBJS = misc.o decompress.o
FONTC = $(srctree)/drivers/video/console/font_acorn_8x8.c
EXTRA_CFLAGS := -fpic -fno-builtin
EXTRA_AFLAGS := -Wa,-march=all
-# Supply ZRELADDR, INITRD_PHYS and PARAMS_PHYS to the decompressor via
-# linker symbols. We only define initrd_phys and params_phys if the
-# machine class defined the corresponding makefile variable.
-LDFLAGS_vmlinux := --defsym zreladdr=$(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
+++ /dev/null
-#
-# 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
-
.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
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
* 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
*/
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
* 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
* 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
*/
__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
/*
phexbuf: .space 12
.size phexbuf, . - phexbuf
+@ phex corrupts {r0, r1, r2, r3}
phex: adr r3, phexbuf
mov r2, #0
strb r2, [r3, r1]
strb r2, [r3, r1]
b 1b
+@ puts corrupts {r0, r1, r2, r3}
puts: loadsp r3, r1
1: ldrb r2, [r0], #1
teq r2, #0
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
.align
.section ".stack", "w"
user_stack: .space 4096
+user_stack_end:
#include <asm/unaligned.h>
-#ifdef STANDALONE_DEBUG
-#define putstr printf
-#else
static void putstr(const char *ptr);
extern void error(char *x);
flush();
}
-#endif
void *memcpy(void *__dest, __const void *__src, size_t __n)
{
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,
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
# 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
struct param_struct *params = (struct param_struct *)tags;
build_tag_list(params, ¶ms->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;
-}
*/
extern void convert_to_tag_list(struct tag *tags);
-
-extern void squash_mem_tags(struct tag *tag);
#include <asm/traps.h>
#include <asm/unwind.h>
+#if defined(CONFIG_DEPRECATED_PARAM_STRUCT)
#include "compat.h"
+#endif
#include "atags.h"
#include "tcm.h"
}
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;
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;
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