diff options
Diffstat (limited to 'arch/arm/cpu/ixp')
| -rw-r--r-- | arch/arm/cpu/ixp/start.S | 30 | ||||
| -rw-r--r-- | arch/arm/cpu/ixp/u-boot.lds | 16 |
2 files changed, 28 insertions, 18 deletions
diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S index efb5a400cf..69ef8aa61f 100644 --- a/arch/arm/cpu/ixp/start.S +++ b/arch/arm/cpu/ixp/start.S @@ -98,7 +98,11 @@ _fiq: .word fiq .globl _TEXT_BASE _TEXT_BASE: +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE) + .word CONFIG_SPL_TEXT_BASE +#else .word CONFIG_SYS_TEXT_BASE +#endif /* * These are defined in the board-specific linker script. @@ -110,9 +114,13 @@ _TEXT_BASE: _bss_start_ofs: .word __bss_start - _start +.globl _image_copy_end_ofs +_image_copy_end_ofs: + .word __image_copy_end - _start + .globl _bss_end_ofs _bss_end_ofs: - .word __bss_end__ - _start + .word __bss_end - _start .globl _end_ofs _end_ofs: @@ -250,29 +258,24 @@ reset: /*------------------------------------------------------------------------------*/ /* - * void relocate_code (addr_sp, gd, addr_moni) - * - * This "function" does not return, instead it continues in RAM - * after relocating the monitor code. + * void relocate_code(addr_moni) * + * This function relocates the monitor code. */ .globl relocate_code relocate_code: - mov r4, r0 /* save addr_sp */ - mov r5, r1 /* save addr of gd */ - mov r6, r2 /* save addr of destination */ + mov r6, r0 /* save addr of destination */ adr r0, _start - cmp r0, r6 - moveq r9, #0 /* no relocation. relocation offset(r9) = 0 */ + subs r9, r6, r0 /* r9 <- relocation offset */ beq relocate_done /* skip relocation */ mov r1, r6 /* r1 <- scratch for copy_loop */ - ldr r3, _bss_start_ofs + ldr r3, _image_copy_end_ofs add r2, r0, r3 /* r2 <- source end address */ copy_loop: - ldmia r0!, {r9-r10} /* copy from source address [r0] */ - stmia r1!, {r9-r10} /* copy to target address [r1] */ + ldmia r0!, {r10-r11} /* copy from source address [r0] */ + stmia r1!, {r10-r11} /* copy to target address [r1] */ cmp r0, r2 /* until source end address [r2] */ blo copy_loop @@ -281,7 +284,6 @@ copy_loop: * fix .rel.dyn relocations */ ldr r0, _TEXT_BASE /* r0 <- Text base */ - sub r9, r6, r0 /* r9 <- relocation offset */ ldr r10, _dynsym_start_ofs /* r10 <- sym table ofs */ add r10, r10, r0 /* r10 <- sym table in FLASH */ ldr r2, _rel_dyn_start_ofs /* r2 <- rel dyn start ofs */ diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds index 5e66dd142c..553589ca6c 100644 --- a/arch/arm/cpu/ixp/u-boot.lds +++ b/arch/arm/cpu/ixp/u-boot.lds @@ -54,6 +54,8 @@ SECTIONS . = ALIGN(4); + __image_copy_end = .; + .rel.dyn : { __rel_dyn_start = .; *(.rel*) @@ -67,17 +69,23 @@ SECTIONS _end = .; +/* + * Compiler-generated __bss_start and __bss_end, see arch/arm/lib/bss.c + * __bss_base and __bss_limit are for linker only (overlay ordering) + */ + .bss_start __rel_dyn_start (OVERLAY) : { KEEP(*(.__bss_start)); + __bss_base = .; } - .bss __bss_start (OVERLAY) : { + .bss __bss_base (OVERLAY) : { *(.bss*) . = ALIGN(4); - ___bssend___ = .; + __bss_limit = .; } - .bss_end ___bssend___ (OVERLAY) : { - KEEP(*(.__bss_end__)); + .bss_end __bss_limit (OVERLAY) : { + KEEP(*(.__bss_end)); } /DISCARD/ : { *(.dynstr*) } |