diff mbox series

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

Message ID 680597d51955bcede82c5e0ecdf9d04a4bf1054d.1654178252.git.michal.simek@amd.com
State Superseded
Delegated to: Michal Simek
Headers show
Series microblaze: Add support for full relocation | expand

Commit Message

Michal Simek June 2, 2022, 1:57 p.m. UTC 
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 mbox series

Patch

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