[PATCH 16/22] microblaze: Add comment about reset location

Better to add comment to explain why reset vector points all the time to origin U-Boot location. If reset happens U-Boot should start from it's origin location.

Signed-off-by: Michal Simek michal.simek@amd.com ---

arch/microblaze/cpu/start.S | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/microblaze/cpu/start.S b/arch/microblaze/cpu/start.S index db3998f54505..9aa5fd099361 100644 --- a/arch/microblaze/cpu/start.S +++ b/arch/microblaze/cpu/start.S @@ -144,6 +144,7 @@ __setup_exceptions: swi r3, r4, 0x4 /* reset address - brai opcode */

addik r6, r0, _start + /* Intentionally keep reset vector back to origin u-boot location */ sw r6, r1, r0 lhu r7, r1, r10 rsubi r8, r10, 0x2