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| author | Christian Riesch <christian.riesch@omicron.at> | 2011-11-30 22:27:37 +0000 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-12-06 23:59:33 +0100 |
| commit | 8f1da53508c78789ebeea98a92a3f55c3f84dc5d (patch) | |
| tree | dd3dc4dbbbeb08b8c81a4d7ea70e74f73b864386 | |
| parent | ef426d45cc94678eab90ebaf1b62fe0f4f0e4691 (diff) | |
| download | u-boot-imx-8f1da53508c78789ebeea98a92a3f55c3f84dc5d.zip u-boot-imx-8f1da53508c78789ebeea98a92a3f55c3f84dc5d.tar.gz u-boot-imx-8f1da53508c78789ebeea98a92a3f55c3f84dc5d.tar.bz2 | |
arm, arm926ejs: Fix clear bss loop for zero length bss
This patch fixes the clear bss loop for bss sections that have
zero length, i.e., where __bss_start == __bss_end__.
Signed-off-by: Christian Riesch <christian.riesch@omicron.at>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
| -rw-r--r-- | arch/arm/cpu/arm926ejs/start.S | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/cpu/arm926ejs/start.S b/arch/arm/cpu/arm926ejs/start.S index 339c5ed..bb4d00b 100644 --- a/arch/arm/cpu/arm926ejs/start.S +++ b/arch/arm/cpu/arm926ejs/start.S @@ -301,10 +301,12 @@ clear_bss: #endif mov r2, #0x00000000 /* clear */ -clbss_l:str r2, [r0] /* clear loop... */ +clbss_l:cmp r0, r1 /* clear loop... */ + bhs clbss_e /* if reached end of bss, exit */ + str r2, [r0] add r0, r0, #4 - cmp r0, r1 - bne clbss_l + b clbss_l +clbss_e: #ifndef CONFIG_SPL_BUILD bl coloured_LED_init |