On 07/06/2012 01:44 PM, Albert ARIBAUD wrote: > Hi Zhong, > > On Thu, 5 Jul 2012 22:35:15 +0800, Zhong Hongbo <bocui...@gmail.com> wrote: >> From: Zhong Hongbo <bocui...@gmail.com> >> >> In currently, when __bss_start is equal to __bss_end__, >> The bss loop will clear all the things in memory space. >> >> But just only when __bss_end__ greater than __bss_start__, >> we do the clear bss section operation. >> >> Signed-off-by: Hongbo Zhong <bocui...@gmail.com> >> --- >> arch/arm/cpu/armv7/start.S | 9 ++++++--- >> 1 files changed, 6 insertions(+), 3 deletions(-) >> >> diff --git a/arch/arm/cpu/armv7/start.S b/arch/arm/cpu/armv7/start.S >> index 22a3ced..2e583ee 100644 >> --- a/arch/arm/cpu/armv7/start.S >> +++ b/arch/arm/cpu/armv7/start.S >> @@ -259,10 +259,13 @@ clear_bss: >> #endif >> mov r2, #0x00000000 /* clear */ >> >> -clbss_l:str r2, [r0] /* clear loop... */ >> +clbss_l: >> + cmp r1, r0 >> + bls clbss_end >> + str r2, [r0] /* clear loop... */ >> add r0, r0, #4 >> - cmp r0, r1 >> - bne clbss_l >> + b clbss_l >> +clbss_end: >> >> /* >> * We are done. Do not return, instead branch to second part of board > > Just checking: that's the same as your 'infinite' patch, right? You are right. I think the description(V1 patch) have not very clear, So I modify it.
Thanks, hongbo > > Amicalement, > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
