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| author | Anatolij Gustschin <agustschin@t-online.de> | 2007-12-05 17:43:20 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-12-27 19:35:34 +0100 |
| commit | 42ed33ffe135f618680f9d6e9712eb35a85bcb62 (patch) | |
| tree | 93e037df475d586efb626cc2ac07a9131171d46b | |
| parent | 85dc2a7f82d11e17f0ca2a448118aed7f7a4b85d (diff) | |
| download | talos-obmc-uboot-42ed33ffe135f618680f9d6e9712eb35a85bcb62.tar.gz talos-obmc-uboot-42ed33ffe135f618680f9d6e9712eb35a85bcb62.zip | |
Fix ppc4xx clear_bss() code
ppc4xx clear_bss() fails if BSS segment size is not
divisible by 4 without remainder. This patch provides
fix for this problem.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
| -rw-r--r-- | cpu/ppc4xx/start.S | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S index 645ac0b8dd..52601ed700 100644 --- a/cpu/ppc4xx/start.S +++ b/cpu/ppc4xx/start.S @@ -1494,16 +1494,25 @@ clear_bss: lwz r4,GOT(_end) cmplw 0, r3, r4 - beq 6f + beq 7f li r0, 0 -5: + + andi. r5, r4, 3 + beq 6f + sub r4, r4, r5 + mtctr r5 + mr r5, r4 +5: stb r0, 0(r5) + addi r5, r5, 1 + bdnz 5b +6: stw r0, 0(r3) addi r3, r3, 4 cmplw 0, r3, r4 - bne 5b -6: + bne 6b +7: mr r3, r9 /* Init Data pointer */ mr r4, r10 /* Destination Address */ bl board_init_r |
