diff options
| author | Tom Rini <trini@ti.com> | 2013-04-15 07:46:11 -0400 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-04-15 07:46:11 -0400 |
| commit | 17059f972fa6768ebf15a575c00083b3a431b79a (patch) | |
| tree | 30df6b88fa1dc57dada54f9a16ab1619cc4f3c52 /arch/arm/cpu/sa1100/start.S | |
| parent | 277f037074fbb73be10a7bff27079b6eb0a3bfbb (diff) | |
| parent | 8960af8ba9488fc54e2e4733cbada26d3cece225 (diff) | |
| download | u-boot-imx-17059f972fa6768ebf15a575c00083b3a431b79a.zip u-boot-imx-17059f972fa6768ebf15a575c00083b3a431b79a.tar.gz u-boot-imx-17059f972fa6768ebf15a575c00083b3a431b79a.tar.bz2 | |
Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'arch/arm/cpu/sa1100/start.S')
| -rw-r--r-- | arch/arm/cpu/sa1100/start.S | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/arch/arm/cpu/sa1100/start.S b/arch/arm/cpu/sa1100/start.S index 4bf6f5f..8a2eafd 100644 --- a/arch/arm/cpu/sa1100/start.S +++ b/arch/arm/cpu/sa1100/start.S @@ -74,7 +74,11 @@ _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. @@ -86,6 +90,10 @@ _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 @@ -137,29 +145,24 @@ 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 @@ -168,7 +171,6 @@ 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 */ |