diff options
Diffstat (limited to 'arch/arm/cpu/arm926ejs/spear/start.S')
| -rw-r--r-- | arch/arm/cpu/arm926ejs/spear/start.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/cpu/arm926ejs/spear/start.S b/arch/arm/cpu/arm926ejs/spear/start.S index 5fb2bd12ec..2cf854eb74 100644 --- a/arch/arm/cpu/arm926ejs/spear/start.S +++ b/arch/arm/cpu/arm926ejs/spear/start.S @@ -29,13 +29,17 @@ */ .globl reset + .globl back_to_bootrom reset: /* * SPL has to return back to BootROM in a few cases (eg. Ethernet boot, - * UART boot, USB boot): save registers in BootROM's stack. + * UART boot, USB boot): save registers in BootROM's stack and then the + * BootROM's stack pointer in the SPL's data section. */ push {r0-r12,lr} + ldr r0, =bootrom_stash_sp + str sp, [r0] /* * Flush v4 I/D caches @@ -56,4 +60,5 @@ reset: */ bl _main /* _main will call board_init_f */ +back_to_bootrom: pop {r0-r12,pc} |