diff options
Diffstat (limited to 'arch/powerpc/cpu')
| -rw-r--r-- | arch/powerpc/cpu/mpc83xx/start.S | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/arch/powerpc/cpu/mpc83xx/start.S b/arch/powerpc/cpu/mpc83xx/start.S index 0001687..c366f61 100644 --- a/arch/powerpc/cpu/mpc83xx/start.S +++ b/arch/powerpc/cpu/mpc83xx/start.S @@ -258,14 +258,17 @@ in_flash: #endif /* set up the stack pointer in our newly created - * cache-ram (r1) */ - lis r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h - ori r1, r1, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l + * cache-ram; use r3 to keep the new SP for now to + * avoid overiding the SP it uselessly */ + lis r3, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@h + ori r3, r3, (CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_GBL_DATA_OFFSET)@l li r0, 0 /* Make room for stack frame header and */ - stwu r0, -4(r1) /* clear final stack frame so that */ - stwu r0, -4(r1) /* stack backtraces terminate cleanly */ + stwu r0, -4(r3) /* clear final stack frame so that */ + stwu r0, -4(r3) /* stack backtraces terminate cleanly */ + /* Finally, actually set SP */ + mr r1, r3 /* let the C-code set up the rest */ /* */ |