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authorPali Rohár <pali@kernel.org>2021-10-27 20:57:01 +0200
committerStefan Roese <sr@denx.de>2021-11-03 06:45:27 +0100
commit558176dcb14d589b5854bea0988301e27b60091d (patch)
treefec67dbeca2601a69e30332161034b6b18292a8a
parent56452295c315397255d05e91940976f68c247d4a (diff)
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tools: kwboot: Replace ARM mov + movt instruction pair by mov + orr
Older Armada SoCs have custom ARMv5te compatible core which does not support movt instruction. So replace mov + movt instruction pair used for immediate move construction by mov + orr instructions which are supported also by ARMv5te. After this change kwboot ARM code should be compatible with any 32-bit ARM core compatible by ARMv2 or new. At least GNU AS does not throw any error or warning. Signed-off-by: Pali Rohár <pali@kernel.org> Reviewed-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Stefan Roese <sr@denx.de>
-rw-r--r--tools/kwboot.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/kwboot.c b/tools/kwboot.c
index 84294ca..62c218e 100644
--- a/tools/kwboot.c
+++ b/tools/kwboot.c
@@ -126,8 +126,8 @@ static unsigned char kwboot_baud_code[] = {
0xfe, 0x5f, 0x2d, 0xe9, /* push { r1 - r12, lr } */
/* ; r0 = UART_BASE */
- 0x02, 0x0a, 0xa0, 0xe3, /* mov r0, #0x2000 */
- 0x01, 0x00, 0x4d, 0xe3, /* movt r0, #0xd001 */
+ 0x0d, 0x02, 0xa0, 0xe3, /* mov r0, #0xd0000000 */
+ 0x12, 0x0a, 0x80, 0xe3, /* orr r0, r0, #0x12000 */
/* ; r2 = address of preamble string */
0xcc, 0x20, 0x8f, 0xe2, /* adr r2, preamble */