mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
arm: implement ELF relocations
ELF relocation tables generated with linker option -pie can be used to fixup code and data in a single loop at relocation, removing the need for manual fixups anywhere else in the code. Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
This commit is contained in:
Albert Aribaud
Wolfgang Denk
parent
89bca0ab69
commit
92d5ecba47
7 changed files with 156 additions and 290 deletions
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@ -33,11 +33,6 @@ STANDALONE_LOAD_ADDR = 0xc100000
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endif
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endif
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ifndef CONFIG_SYS_ARM_WITHOUT_RELOC
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# needed for relocation
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PLATFORM_RELFLAGS += -fPIC
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endif
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ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
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PLATFORM_CPPFLAGS += -DCONFIG_SYS_ARM_WITHOUT_RELOC
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endif
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@ -72,3 +67,8 @@ PLATFORM_LIBS += $(OBJTREE)/arch/arm/lib/eabi_compat.o
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endif
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endif
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LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds
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ifndef CONFIG_SYS_ARM_WITHOUT_RELOC
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# needed for relocation
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PLATFORM_LDFLAGS += -pie
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endif
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@ -10,6 +10,7 @@
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* Copyright (c) 2002 Gary Jennejohn <garyj@denx.de>
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* Copyright (c) 2003 Richard Woodruff <r-woodruff2@ti.com>
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* Copyright (c) 2003 Kshitij <kshitij@ti.com>
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* Copyright (c) 2010 Albert Aribaud <albert.aribaud@free.fr>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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@ -118,22 +119,19 @@ _fiq:
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_TEXT_BASE:
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.word TEXT_BASE
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#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
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.globl _armboot_start
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_armboot_start:
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.word _start
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#endif
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/*
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* These are defined in the board-specific linker script.
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* Subtracting _start from them lets the linker put their
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* relative position in the executable instead of leaving
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* them null.
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*/
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.globl _bss_start
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_bss_start:
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.word __bss_start
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.globl _bss_start_ofs
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_bss_start_ofs:
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.word __bss_start - _start
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.globl _bss_end
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_bss_end:
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.word _end
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.globl _bss_end_ofs
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_bss_end_ofs:
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.word _end - _start
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#ifdef CONFIG_USE_IRQ
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/* IRQ stack memory (calculated at run-time) */
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@ -153,30 +151,6 @@ FIQ_STACK_START:
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IRQ_STACK_START_IN:
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.word 0x0badc0de
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.globl _datarel_start
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_datarel_start:
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.word __datarel_start
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.globl _datarelrolocal_start
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_datarelrolocal_start:
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.word __datarelrolocal_start
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.globl _datarellocal_start
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_datarellocal_start:
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.word __datarellocal_start
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.globl _datarelro_start
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_datarelro_start:
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.word __datarelro_start
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.globl _got_start
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_got_start:
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.word __got_start
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.globl _got_end
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_got_end:
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.word __got_end
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/*
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* the actual reset code
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*/
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@ -226,9 +200,8 @@ stack_setup:
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adr r0, _start
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ldr r2, _TEXT_BASE
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ldr r3, _bss_start
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sub r2, r3, r2 /* r2 <- size of armboot */
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add r2, r0, r2 /* r2 <- source end address */
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ldr r3, _bss_start_ofs
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add r2, r0, r3 /* r2 <- source end address */
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cmp r0, r6
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beq clear_bss
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@ -240,36 +213,54 @@ copy_loop:
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blo copy_loop
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#ifndef CONFIG_PRELOADER
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/* fix got entries */
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ldr r1, _TEXT_BASE /* Text base */
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mov r0, r7 /* reloc addr */
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ldr r2, _got_start /* addr in Flash */
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ldr r3, _got_end /* addr in Flash */
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sub r3, r3, r1
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add r3, r3, r0
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sub r2, r2, r1
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add r2, r2, r0
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/*
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* fix .rel.dyn relocations
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*/
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ldr r0, _TEXT_BASE /* r0 <- Text base */
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sub r9, r7, r0 /* r9 <- relocation offset */
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ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */
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add r10, r10, r0 /* r10 <- sym table in FLASH */
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ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */
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add r2, r2, r0 /* r2 <- rel dyn start in FLASH */
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ldr r3, _rel_dyn_end_ofs /* r3 <- rel dyn end ofs */
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add r3, r3, r0 /* r3 <- rel dyn end in FLASH */
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fixloop:
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ldr r4, [r2]
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sub r4, r4, r1
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add r4, r4, r0
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str r4, [r2]
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add r2, r2, #4
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ldr r0, [r2] /* r0 <- location to fix up, IN FLASH! */
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add r0, r9 /* r0 <- location to fix up in RAM */
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ldr r1, [r2, #4]
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and r8, r1, #0xff
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cmp r8, #23 /* relative fixup? */
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beq fixrel
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cmp r8, #2 /* absolute fixup? */
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beq fixabs
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/* ignore unknown type of fixup */
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b fixnext
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fixabs:
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/* absolute fix: set location to (offset) symbol value */
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mov r1, r1, LSR #4 /* r1 <- symbol index in .dynsym */
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add r1, r10, r1 /* r1 <- address of symbol in table */
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ldr r1, [r1, #4] /* r1 <- symbol value */
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add r1, r9 /* r1 <- relocated sym addr */
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b fixnext
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fixrel:
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/* relative fix: increase location by offset */
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ldr r1, [r0]
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add r1, r1, r9
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fixnext:
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str r1, [r0]
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add r2, r2, #8 /* each rel.dyn entry is 8 bytes */
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cmp r2, r3
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bne fixloop
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blo fixloop
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#endif
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#endif /* #ifndef CONFIG_SKIP_RELOCATE_UBOOT */
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clear_bss:
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#ifndef CONFIG_PRELOADER
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ldr r0, _bss_start
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ldr r1, _bss_end
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ldr r0, _bss_start_ofs
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ldr r1, _bss_end_ofs
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ldr r3, _TEXT_BASE /* Text base */
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mov r4, r7 /* reloc addr */
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sub r0, r0, r3
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add r0, r0, r4
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sub r1, r1, r3
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add r1, r1, r4
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mov r2, #0x00000000 /* clear */
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@ -287,24 +278,33 @@ clbss_l:str r2, [r0] /* clear loop... */
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* initialization, now running from RAM.
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*/
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#ifdef CONFIG_NAND_SPL
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ldr pc, _nand_boot
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_nand_boot: .word nand_boot
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ldr r0, _nand_boot_ofs
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adr r1, _start
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add pc, r0, r1
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_nand_boot_ofs
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: .word nand_boot - _start
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#else
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ldr r0, _TEXT_BASE
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ldr r2, _board_init_r
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sub r2, r2, r0
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add r2, r2, r7 /* position from board_init_r in RAM */
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ldr r0, _board_init_r_ofs
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adr r1, _start
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add r0, r0, r1
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add lr, r0, r9
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/* setup parameters for board_init_r */
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mov r0, r5 /* gd_t */
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mov r1, r7 /* dest_addr */
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/* jump to it ... */
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mov lr, r2
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mov pc, lr
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_board_init_r: .word board_init_r
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_board_init_r_ofs:
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.word board_init_r - _start
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#endif
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_rel_dyn_start_ofs:
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.word __rel_dyn_start - _start
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_rel_dyn_end_ofs:
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.word __rel_dyn_end - _start
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_dynsym_start_ofs:
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.word __dynsym_start - _start
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#else /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
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/*
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* the actual reset code
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@ -333,10 +333,8 @@ relocate: /* relocate U-Boot to RAM */
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ldr r1, _TEXT_BASE /* test if we run from flash or RAM */
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cmp r0, r1 /* don't reloc during debug */
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beq stack_setup
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ldr r2, _armboot_start
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ldr r3, _bss_start
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sub r2, r3, r2 /* r2 <- size of armboot */
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add r2, r0, r2 /* r2 <- source end address */
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ldr r3, _bss_start_ofs /* r3 <- _bss_start - _start */
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add r2, r0, r3 /* r2 <- source end address */
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copy_loop:
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ldmia r0!, {r3-r10} /* copy from source address [r0] */
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@ -360,8 +358,11 @@ stack_setup:
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bic sp, sp, #7 /* 8-byte alignment for ABI compliance */
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clear_bss:
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ldr r0, _bss_start /* find start of bss segment */
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ldr r1, _bss_end /* stop here */
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adr r2, _start
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ldr r0, _bss_start_ofs /* find start of bss segment */
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add r0, r0, r2
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ldr r1, _bss_end_ofs /* stop here */
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add r1, r1, r2
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mov r2, #0x00000000 /* clear */
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#ifndef CONFIG_PRELOADER
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@ -374,13 +375,16 @@ clbss_l:str r2, [r0] /* clear loop... */
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bl red_LED_on
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#endif /* CONFIG_PRELOADER */
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ldr pc, _start_armboot
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ldr r0, _start_armboot_ofs
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adr r1, _start
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add r0, r0, r1
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ldr pc, r0
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_start_armboot:
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_start_armboot_ofs:
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#ifdef CONFIG_NAND_SPL
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.word nand_boot
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.word nand_boot - _start
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#else
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.word start_armboot
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.word start_armboot - _start
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#endif /* CONFIG_NAND_SPL */
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#endif /* #if !defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
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@ -469,7 +473,7 @@ cpu_init_crit:
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sub sp, sp, #S_FRAME_SIZE
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stmia sp, {r0 - r12} @ Save user registers (now in svc mode) r0-r12
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#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
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ldr r2, _armboot_start
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adr r2, _start
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sub r2, r2, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
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sub r2, r2, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ set base 2 words into abort stack
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#else
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@ -507,7 +511,7 @@ cpu_init_crit:
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.macro get_bad_stack
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#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
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ldr r13, _armboot_start @ setup our mode stack
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adr r13, _start @ setup our mode stack
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sub r13, r13, #(CONFIG_STACKSIZE+CONFIG_SYS_MALLOC_LEN)
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sub r13, r13, #(CONFIG_SYS_GBL_DATA_SIZE+8) @ reserved a couple spots in abort stack
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#else
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@ -41,21 +41,19 @@ SECTIONS
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. = ALIGN(4);
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.data : {
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*(.data)
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__datarel_start = .;
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*(.data.rel)
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__datarelrolocal_start = .;
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*(.data.rel.ro.local)
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__datarellocal_start = .;
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*(.data.rel.local)
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__datarelro_start = .;
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*(.data.rel.ro)
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}
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__got_start = .;
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. = ALIGN(4);
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.got : { *(.got) }
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__got_end = .;
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__rel_dyn_start = .;
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.rel.dyn : { *(.rel.dyn) }
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__rel_dyn_end = .;
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__dynsym_start = .;
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.dynsym : { *(.dynsym) }
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. = ALIGN(4);
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. = .;
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__u_boot_cmd_start = .;
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.u_boot_cmd : { *(.u_boot_cmd) }
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@ -65,4 +63,10 @@ SECTIONS
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__bss_start = .;
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.bss (NOLOAD) : { *(.bss) . = ALIGN(4); }
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_end = .;
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/DISCARD/ : { *(.dynstr*) }
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/DISCARD/ : { *(.dynamic*) }
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/DISCARD/ : { *(.plt*) }
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/DISCARD/ : { *(.interp*) }
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/DISCARD/ : { *(.gnu*) }
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}
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@ -21,8 +21,6 @@
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#ifndef _ASM_CONFIG_H_
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#define _ASM_CONFIG_H_
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#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
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/* Relocation to SDRAM works on all ARM boards */
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#define CONFIG_RELOC_FIXUP_WORKS
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#endif
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#endif
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@ -30,18 +30,18 @@
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#define _U_BOOT_ARM_H_ 1
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/* for the following variables, see start.S */
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extern ulong _bss_start; /* code + data end == BSS start */
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extern ulong _bss_end; /* BSS end */
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extern ulong _bss_start_ofs; /* BSS start relative to _start */
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extern ulong _bss_end_ofs; /* BSS end relative to _start */
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extern ulong IRQ_STACK_START; /* top of IRQ stack */
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extern ulong FIQ_STACK_START; /* top of FIQ stack */
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#if defined(CONFIG_SYS_ARM_WITHOUT_RELOC)
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extern ulong _armboot_start; /* code start */
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extern ulong _armboot_start_ofs; /* code start */
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#else
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extern ulong _TEXT_BASE; /* code start */
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extern ulong _datarel_start;
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extern ulong _datarelrolocal_start;
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extern ulong _datarellocal_start;
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extern ulong _datarelro_start;
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extern ulong _datarel_start_ofs;
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extern ulong _datarelrolocal_start_ofs;
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extern ulong _datarellocal_start_ofs;
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extern ulong _datarelro_start_ofs;
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extern ulong IRQ_STACK_START_IN; /* 8 bytes in IRQ stack */
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#endif
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@ -147,7 +147,7 @@ static int display_banner (void)
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#else
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_armboot_start,
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#endif
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_bss_start, _bss_end);
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_bss_start_ofs+_TEXT_BASE, _bss_end_ofs+_TEXT_BASE);
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#ifdef CONFIG_MODEM_SUPPORT
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debug ("Modem Support enabled\n");
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#endif
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@ -517,7 +517,7 @@ void board_init_f (ulong bootflag)
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memset ((void*)gd, 0, sizeof (gd_t));
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gd->mon_len = _bss_end - _TEXT_BASE;
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gd->mon_len = _bss_end_ofs;
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for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) {
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if ((*init_fnc_ptr)() != 0) {
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@ -679,6 +679,7 @@ static char *failed = "*** failed ***\n";
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*
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************************************************************************
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*/
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void board_init_r (gd_t *id, ulong dest_addr)
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{
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char *s;
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@ -702,7 +703,7 @@ void board_init_r (gd_t *id, ulong dest_addr)
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gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */
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monitor_flash_len = _bss_start - _TEXT_BASE;
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monitor_flash_len = _bss_start_ofs;
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debug ("monitor flash len: %08lX\n", monitor_flash_len);
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board_init(); /* Setup chipselects */
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@ -914,6 +915,7 @@ extern void davinci_eth_set_mac_addr (const u_int8_t *addr);
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/* NOTREACHED - no way out of command loop except booting */
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}
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#endif /* defined(CONFIG_SYS_ARM_WITHOUT_RELOC) */
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void hang (void)
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@ -1,49 +1,54 @@
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To make relocation on arm working, the following changes are done:
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Add new compilerflag:
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At arch level: add linker flag -pie
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-fPIC
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This causes the linker to generate fixup tables .rel.dyn and .dynsym,
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which must be applied to the relocated image before transferring
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control to it.
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-> compiler generates position independent code
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These fixups are described in the ARM ELF documentation as type 23
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(program-base-relative) and 2 (symbol-relative)
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changes in board code:
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At cpu level: modify linker file and add a relocation and fixup loop
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- dram_init:
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- bd pointer is now at this point not accessible, so only
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detect the real dramsize, and store it in gd->ram_size.
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best detected with get_ram_size();
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ToDo: move there also the dram initialization on boards where
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it is possible.
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- setup the bd_t dram bank info in the new function
|
||||
dram_init_banksize().
|
||||
the linker file must be modified to include the .rel.dyn and .dynsym
|
||||
tables in the binary image, and to provide symbols for the relocation
|
||||
code to access these tables
|
||||
|
||||
- board.c code is adapted from ppc code
|
||||
The relocation and fixup loop must be executed after executing
|
||||
board_init_f at initial location and before executing board_init_r
|
||||
at final location.
|
||||
|
||||
- undef CONFIG_RELOC_FIXUP_WORKS
|
||||
At board level:
|
||||
|
||||
-> cmdtabl, and subcommand table must be handled from "hand"
|
||||
collected in section "__datarellocal_start".
|
||||
dram_init(): bd pointer is now at this point not accessible, so only
|
||||
detect the real dramsize, and store it in gd->ram_size. Bst detected
|
||||
with get_ram_size().
|
||||
|
||||
- How To fixup the sections:
|
||||
TODO: move also dram initialization there on boards where it is possible.
|
||||
|
||||
__datarel_start, __datarelrolocal_start, __datarellocal_start and
|
||||
__datarelro_start
|
||||
Setup of the the bd_t dram bank info is done in the new function
|
||||
dram_init_banksize() called after bd is accessible.
|
||||
|
||||
automatically? Then it should be possible to define again
|
||||
CONFIG_RELOC_FIXUP_WORKS
|
||||
At lib level:
|
||||
|
||||
- irq stack setup is now not longer on a fix position, instead it is
|
||||
calculated in board_init_f, and stored in gd->irq_sp
|
||||
Board.c code is adapted from ppc code
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
At config level:
|
||||
|
||||
To compile a board without relocation, define CONFIG_SYS_ARM_WITHOUT_RELOC
|
||||
This possibility will removed!! So please fix your board to compile without
|
||||
CONFIG_SYS_ARM_WITHOUT_RELOC defined!!!
|
||||
Define CONFIG_RELOC_FIXUP_WORKS.
|
||||
Undefine CONFIG_SYS_ARM_WITHOUT_RELOC
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
* WARNING ** WARNING ** WARNING ** WARNING ** WARNING ** WARNING ** WARNING *
|
||||
|
||||
For boards which boot from nand_spl, it is possible to save a copy
|
||||
Boards which are not fixed to support relocation will be REMOVED!
|
||||
|
||||
Eventually, CONFIG_SYS_ARM_WITHOUT_RELOC and CONFIG_RELOC_FIXUP_WORKS will
|
||||
disappear and boards which have to migrated to relocation will disappear too.
|
||||
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
For boards which boot from nand_spl, it is possible to save one copy
|
||||
if TEXT_BASE == relocation address! This prevents that uboot code
|
||||
is copied again in relocate_code().
|
||||
|
||||
|
|
@ -64,9 +69,9 @@ f) u-boot code steps through board_init_f() and calculates
|
|||
If TEXT_BASE == relocation address, the copying of u-boot
|
||||
in f) could be saved.
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
ToDo:
|
||||
TODO
|
||||
|
||||
- fill in bd_t infos (check)
|
||||
- adapt all boards
|
||||
|
|
@ -80,7 +85,7 @@ ToDo:
|
|||
- new function dram_init_banksize() is actual board specific. Maybe
|
||||
we make a weak default function in arch/arm/lib/board.c ?
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
Relocation with NAND_SPL (example for the tx25):
|
||||
|
||||
|
|
@ -98,158 +103,11 @@ Relocation with NAND_SPL (example for the tx25):
|
|||
from the nand_spl code), no need to copy, just go on with bss clear
|
||||
and jump to board_init_r.
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
Relocation:
|
||||
How to translate flash addresses in GOT to ram addresses.
|
||||
This is automagically done from code, but this example
|
||||
shows, how this magic code works ;-)
|
||||
(example on the qong board)
|
||||
How ELF relocations 23 and 2 work.
|
||||
|
||||
Find a variable:
|
||||
|
||||
a) search it in System.map
|
||||
(for example flash_info)
|
||||
|
||||
a005b4c0 B BootpID
|
||||
a005b4c4 B BootpTry
|
||||
a005b4c8 b slave
|
||||
a005b4cc B flash_info
|
||||
^^^^^^^^
|
||||
a005c908 b saved_sector.4002
|
||||
a005c910 b cfi_mtd_info
|
||||
a005c9c0 b cfi_mtd_names
|
||||
a005c9d0 B mtd_table
|
||||
|
||||
---------------------------------------
|
||||
|
||||
b) create hexdump from u-boot code:
|
||||
|
||||
hexdump -C u-boot > gnlmpfhex
|
||||
|
||||
---------------------------------------
|
||||
|
||||
c) search the variables address in the hexdump
|
||||
|
||||
|
||||
*
|
||||
0005fc80 00 00 00 00 00 00 00 00 2c 06 01 a0 18 cd 05 a0 |........,.......|
|
||||
0005fc90 9c d4 05 a0 bc b4 05 a0 1c 7f 05 a0 f0 05 01 a0 |................|
|
||||
0005fca0 08 5a 04 a0 1c ab 05 a0 ec a4 05 a0 98 c3 01 a0 |.Z..............|
|
||||
0005fcb0 a0 d6 05 a0 04 71 05 a0 c0 f9 00 a0 3c cd 05 a0 |.....q......<...|
|
||||
0005fcc0 cc b4 05 a0 f0 fa 00 a0 f0 d6 05 a0 10 86 05 a0 |................|
|
||||
^^^^^^^^^^^
|
||||
0005fcd0 a4 16 06 a0 dc 64 05 a0 18 86 05 a0 52 48 05 a0 |.....d......RH..|
|
||||
0005fce0 c0 86 05 a0 24 6e 02 a0 b4 6c 05 a0 b0 94 01 a0 |....$n...l......|
|
||||
0005fcf0 1c 86 05 a0 50 85 05 a0 d4 0c 06 a0 bc 0b 06 a0 |....P...........|
|
||||
|
||||
|
||||
-> 0005fcc0
|
||||
|
||||
----------------------------------------
|
||||
|
||||
d) know we calculate this address in RAM
|
||||
|
||||
|
||||
8ff08000 (new address of code in RAM *1)
|
||||
|
||||
+ 0005fcc0
|
||||
|
||||
- 00008000 (offset of text *2)
|
||||
|
||||
----------
|
||||
|
||||
8ff5fcc0 -> Addr GOT in RAM
|
||||
|
||||
*1:
|
||||
activate debug and look for the line:
|
||||
Now running in RAM - U-Boot at: 8ff08000
|
||||
^^^^^^^^
|
||||
new address of u-boot code in RAM
|
||||
|
||||
*2:
|
||||
Section Headers:
|
||||
[Nr] Name Type Addr Off Size ES Flg Lk Inf Al
|
||||
[ 0] NULL 00000000 000000 000000 00 0 0 0
|
||||
[ 1] .text PROGBITS a0000000 008000 04599c 00 AX 0 0 32
|
||||
^^^^^^
|
||||
Offset of text
|
||||
|
||||
----------------------------------------
|
||||
|
||||
e) now we look in 8ff5fcc0 (RAM)
|
||||
|
||||
|
||||
QongEVB>md 0x8ff5fcc0
|
||||
8ff5fcc0 : a005b4cc a000faf0 a005d6f0 a0058610 ................
|
||||
^^^^^^^^
|
||||
Bingo, here we have the old flash address (when relocation
|
||||
is working, here is the fixed ram address. see @ f, how
|
||||
it gets calculated)
|
||||
|
||||
|
||||
----------------------------------------
|
||||
|
||||
f) now translate it in the new RAM address
|
||||
|
||||
a005b4cc
|
||||
|
||||
- a0000000 TextBase
|
||||
|
||||
+ 8ff08000 new address of u-boot in ram
|
||||
----------
|
||||
8ff634cc
|
||||
|
||||
QongEVB>mm 0x8ff5fcc0 0x8ff634cc 1
|
||||
QongEVB>md 0x8ff5fcc0
|
||||
8ff5fcc0 : 8ff634cc a000faf0 a005d6f0 a0058610 .4..............
|
||||
8ff5fcd0 : a00616a4 a00564dc a0058618 a0054852 .....d......RH..
|
||||
|
||||
As this must be done for all address in the GOT, the u-boot
|
||||
code did this automagically ... :-)
|
||||
|
||||
----------------------------------------------
|
||||
|
||||
g) check if the new address is really in the bss section:
|
||||
|
||||
bss start:
|
||||
8ff6054c (8ff08000 + 0005854C monitorlen)
|
||||
|
||||
bss end:
|
||||
8ff698ac (8ff08000 + 618AC)
|
||||
|
||||
8ff634cc is in bss :-)
|
||||
|
||||
----------------------------------------------
|
||||
|
||||
h) u-boot prints:
|
||||
|
||||
important addresses:
|
||||
|
||||
U-Boot code: A0000000 -> A005854C BSS: -> A00618AC TextBase 0xa0000000
|
||||
Now running in RAM - U-Boot at: 8ff08000 relocBase 0x8ff08000
|
||||
|
||||
|
||||
---------
|
||||
|
||||
U-Boot 2010.06-rc2-00002-gf8fbb25-dirty (Jun 18 2010 - 17:07:19)
|
||||
|
||||
U-Boot code: A0000000 -> A005854C BSS: -> A00618AC
|
||||
CPU: Freescale i.MX31 at 398 MHz
|
||||
Board: DAVE/DENX Qong
|
||||
mon: FFFFFFFF gd->monLen: 000618AC
|
||||
Top of RAM usable for U-Boot at: 90000000
|
||||
LCD panel info: 640 x 480, 16 bit/pix
|
||||
Reserving 600k for LCD Framebuffer at: 8ff6a000
|
||||
Reserving 390k for U-Boot at: 8ff08000
|
||||
Reserving 1280k for malloc() at: 8fdc8000
|
||||
Reserving 28 Bytes for Board Info at: 8fdc7fe4
|
||||
Reserving 48 Bytes for Global Data at: 8fdc7fb4
|
||||
New Stack Pointer is: 8fdc7fb0
|
||||
RAM Configuration:
|
||||
Bank #0: 80000000 256 MiB
|
||||
mon: 0005854C gd->monLen: 000618AC
|
||||
Now running in RAM - U-Boot at: 8ff08000
|
||||
TBC
|
||||
|
||||
-------------------------------------------------------------------------------------
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue