diff options
Diffstat (limited to 'arch/arm/cpu/pxa/start.S')
| -rw-r--r-- | arch/arm/cpu/pxa/start.S | 31 |
1 files changed, 15 insertions, 16 deletions
diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S index e71803eb2..ada91a66c 100644 --- a/arch/arm/cpu/pxa/start.S +++ b/arch/arm/cpu/pxa/start.S @@ -102,7 +102,7 @@ _end_vect: .globl _TEXT_BASE _TEXT_BASE: -#ifdef CONFIG_SPL_BUILD +#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE) .word CONFIG_SPL_TEXT_BASE #else .word CONFIG_SYS_TEXT_BASE @@ -118,9 +118,13 @@ _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: @@ -169,17 +173,13 @@ reset: /*------------------------------------------------------------------------------*/ #ifndef CONFIG_SPL_BUILD /* - * 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 */ /* Disable the Dcache RAM lock for stack now */ #ifdef CONFIG_CPU_PXA25X @@ -189,16 +189,15 @@ relocate_code: #endif 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 @@ -207,7 +206,6 @@ 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 */ @@ -387,8 +385,9 @@ cpu_init_crit: str r0, [r13] @ save R0's value. ldr r0, IRQ_STACK_START_IN @ get data regions start str lr, [r0] @ save caller lr in position 0 of saved stack - mrs r0, spsr @ get the spsr + mrs lr, spsr @ get the spsr str lr, [r0, #4] @ save spsr in position 1 of saved stack + ldr lr, [r0] @ restore lr ldr r0, [r13] @ restore r0 add r13, r13, #4 @ pop stack entry .endm |