From: Pali Rohár pali@kernel.org
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 --- tools/kwboot.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/kwboot.c b/tools/kwboot.c index 84294cadfe..62c218ef64 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 */