Remove one instruction in the loop which speedup code copying. Signed-off-by: Michal Simek <michal.si...@xilinx.com> ---
Changes in v2: None
arch/microblaze/cpu/start.S | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S
index 3de0e12090ea..4023ec067531 100644
--- a/arch/microblaze/cpu/start.S
+++ b/arch/microblaze/cpu/start.S
@@ -212,12 +212,14 @@ relocate_code:
/* Relocate text and data - r12 temp value */
addi r21, r0, _start
addi r22, r0, __end - 4 /* Include BSS too */
-1: lwi r12, r21, 0 /* Load u-boot data */
- swi r12, r23, 0 /* Write zero to loc */
- addi r21, r21, 4 /* Increment to next loc - origin code */
- cmp r12, r21, r22 /* Check if we have reach the end */
+
+ rsub r6, r21, r22
+ or r5, r0, r0
+1: lw r12, r21, r5 /* Load u-boot data */
+ sw r12, r23, r5 /* Write zero to loc */
+ cmp r12, r5, r6 /* Check if we have reach the end */
bneid r12, 1b
- addi r23, r23, 4 /* Increment to next loc - relocate code */
+ addi r5, r5, 4 /* Increment to next loc - relocate code */
/* R23 points to the base address. */
add r23, r0, r7 /* Move reloc addr to r23 */
--
1.8.2.3
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