arm: relocate_code(): Remove useless relocation offset computation

[people/ms/u-boot.git] / arch / arm / cpu / ixp / start.S

diff --git a/arch/arm/cpu/ixp/start.S b/arch/arm/cpu/ixp/start.S
index efb5a400cf67cc9c2732af97714a751b4c2c5c07..3a1253dbe9466bf41d3649463732715e8d4c5615 100644 (file)
--- 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.
@@ -112,7 +116,7 @@ _bss_start_ofs:
 
 .globl _bss_end_ofs
 _bss_end_ofs:
-       .word __bss_end__ - _start
+       .word __bss_end - _start
 
 .globl _end_ofs
 _end_ofs:
@@ -252,9 +256,7 @@ reset:
 /*
  * void relocate_code (addr_sp, gd, addr_moni)
  *
- * This "function" does not return, instead it continues in RAM
- * after relocating the monitor code.
- *
+ * This function relocates the monitor code.
  */
        .globl  relocate_code
 relocate_code:
@@ -263,16 +265,15 @@ relocate_code:
        mov     r6, r2  /* 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
        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 +282,6 @@ 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 */