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firmware: fw_base.S: fix _reset_regs

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a3 and a4 cannot be reset because used in fw_platform_init.

Signed-off-by: Xiang W <wxjstz@126.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Xiang W
2024-03-04 20:15:52 +08:00
committed by Anup Patel
parent 8151105af5
commit 526b9ce079
1 changed files with 3 additions and 5 deletions
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8
firmware/fw_base.S
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@@ -167,7 +167,7 @@ _relocate_done:
/* At this point we are running from link address */ /* At this point we are running from link address */
/* Reset all registers except ra, a0, a1 and a2 for boot HART */ /* Reset all registers except ra, a0, a1, a2, a3 and a4 for boot HART */
li ra, 0 li ra, 0
call _reset_regs call _reset_regs
@@ -394,7 +394,7 @@ _wait_for_boot_hart:
bne t0, t1, _wait_for_boot_hart bne t0, t1, _wait_for_boot_hart
_start_warm: _start_warm:
/* Reset all registers except ra, a0, a1 and a2 for non-boot HARTs */ /* Reset all registers except ra, a0, a1, a2, a3 and a4 for non-boot HART */
li ra, 0 li ra, 0
call _reset_regs call _reset_regs
@@ -745,7 +745,7 @@ _reset_regs:
/* flush the instruction cache */ /* flush the instruction cache */
fence.i fence.i
/* Reset all registers except ra, a0, a1 and a2 */ /* Reset all registers except ra, a0, a1, a2, a3 and a4 */
li sp, 0 li sp, 0
li gp, 0 li gp, 0
li tp, 0 li tp, 0
@@ -754,8 +754,6 @@ _reset_regs:
li t2, 0 li t2, 0
li s0, 0 li s0, 0
li s1, 0 li s1, 0
li a3, 0
li a4, 0
li a5, 0 li a5, 0
li a6, 0 li a6, 0
li a7, 0 li a7, 0