diff options
Diffstat (limited to 'arch/sh/kernel/head_32.S')
| -rw-r--r-- | arch/sh/kernel/head_32.S | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S index ae0a382a82eb..788605ff7088 100644 --- a/arch/sh/kernel/head_32.S +++ b/arch/sh/kernel/head_32.S @@ -80,8 +80,14 @@ ENTRY(_stext) mov.l 7f, r0 ldc r0, r7_bank ! ... and initial thread_info #endif - - ! Clear BSS area + +#ifndef CONFIG_SH_NO_BSS_INIT + /* + * Don't clear BSS if running on slow platforms such as an RTL simulation, + * remote memory via SHdebug link, etc. For these the memory can be guaranteed + * to be all zero on boot anyway. + */ + ! Clear BSS area #ifdef CONFIG_SMP mov.l 3f, r0 cmp/eq #0, r0 ! skip clear if set to zero @@ -97,6 +103,8 @@ ENTRY(_stext) mov.l r0,@-r2 10: +#endif + ! Additional CPU initialization mov.l 6f, r0 jsr @r0 |