On Wed, Dec 10, 2008 at 09:05:00AM +0900, Kyungmin Park wrote:
diff --git a/cpu/arm1136/start.S b/cpu/arm1136/start.S index e622338..132cc4a 100644 --- a/cpu/arm1136/start.S +++ b/cpu/arm1136/start.S @@ -33,23 +33,7 @@ .globl _start _start: b reset #ifdef CONFIG_ONENAND_IPL
ldr pc, _hangldr pc, _hangldr pc, _hangldr pc, _hangldr pc, _hangldr pc, _hangldr pc, _hang-_hang:
.word do_hang.word 0x12345678.word 0x12345678.word 0x12345678.word 0x12345678.word 0x12345678.word 0x12345678.word 0x12345678 /* now 16*4=64 */
. = _start + 64 /* now 16*4=64 */#else
Can you do a branch-to-self here that will accomplish the same thing, without needing do_hang later?
So I don't understand the meaning. In general in restricted environment, 1KiB bootloader. There's no room to handle exception.
I don't mean to handle the exception, just to hang if one happens rather than going through the init code again. I don't see how 64 bytes full of branch-to-self instructions is going to take up any more space than 64 bytes of nothing.
Is there anything that's going to use this? If not, just remove the code.
I just wonder if there are some user to use. If not no problem to remove.
If nothing's using it, please remove it.
-Scott