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? Amicalement, -- Albert. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
