[PATCH] riscv: Align the trap handler to 64 bytes
Samuel Holland
samuel at sholland.org
Tue Oct 31 06:35:41 CET 2023
This is required on CPUs which always operate in CLIC mode, such as the
T-HEAD E906 and E907. Per the CLIC specification: "In this mode, the
trap vector base address held in mtvec is constrained to be aligned on a
64-byte or larger power-of-two boundary."
Reported-by: Madushan Nishantha <jlmadushan at gmail.com>
Signed-off-by: Samuel Holland <samuel at sholland.org>
---
arch/riscv/cpu/mtrap.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/cpu/mtrap.S b/arch/riscv/cpu/mtrap.S
index 6eb3ed1d5a8..5cad7b41ff7 100644
--- a/arch/riscv/cpu/mtrap.S
+++ b/arch/riscv/cpu/mtrap.S
@@ -26,7 +26,7 @@
.text
/* trap entry */
- .align 2
+ .align 6
.global trap_entry
trap_entry:
addi sp, sp, -32 * REGBYTES
--
2.41.0
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