arm: relocate_code(): do not set register useless

[u-boot] / arch / arm / cpu / pxa / start.S

diff --git a/arch/arm/cpu/pxa/start.S b/arch/arm/cpu/pxa/start.S
index 7e1c6e62aa5e907a87d110241350f9c38adb6a41..53391ec303f6da11c10663e46eff93d395d19228 100644 (file)
--- a/arch/arm/cpu/pxa/start.S
+++ b/arch/arm/cpu/pxa/start.S
@@ -244,12 +244,12 @@ stack_setup:
        mov     sp, r4
 
        adr     r0, _start
+       cmp     r0, r6
+       beq     clear_bss               /* skip relocation */
        mov     r1, r6                  /* r1 <- scratch for copy_loop */
        ldr     r2, _TEXT_BASE
        ldr     r3, _bss_start_ofs
        add     r2, r0, r3              /* r2 <- source end address         */
-       cmp     r0, r6
-       beq     clear_bss
 
        stmfd sp!, {r0-r12}
 copy_loop: