nios2: fix cached mode in clearing the BSS

As the generic board runs in cached mode, it should not use
"stwio" which bypass the cache.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Reviewed-by: Chin Liang See <clsee@altera.com>

diff --git a/arch/nios2/cpu/start.S b/arch/nios2/cpu/start.S
index bb86bbf40c4e2fa7109be59d306e51f80f703a52..54787c53ca7e7d661a1bb9910ed6d08918373354 100644 (file)
--- a/arch/nios2/cpu/start.S
+++ b/arch/nios2/cpu/start.S
@@ -158,7 +158,7 @@ relocate_code:
        ori     r6, r6, %lo(__bss_end)
        beq     r5, r6, 5f
 
-4:     stwio   r0, 0(r5)
+4:     stw     r0, 0(r5)
        addi    r5, r5, 4
        bne     r5, r6, 4b
 5: