[U-Boot] [PATCH 18/20] arm/errata: Update required bits for A57 cores erratas

Prabhakar Kushwaha prabhakar at freescale.com
Mon May 18 09:16:25 CEST 2015


From: Bhupesh Sharma <bhupesh.sharma at freescale.com>

This patch updates the setting of required bits for A57 cores erratas
- 828024 and 826974

Signed-off-by: Bhupesh Sharma <bhupesh.sharma at freescale.com>
Signed-off-by: Dai Haruki <dai.haruki at freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
---
 arch/arm/cpu/armv8/start.S | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/cpu/armv8/start.S b/arch/arm/cpu/armv8/start.S
index e5f2766..e70bed4 100644
--- a/arch/arm/cpu/armv8/start.S
+++ b/arch/arm/cpu/armv8/start.S
@@ -115,18 +115,18 @@ apply_a57_core_errata:
 #ifdef CONFIG_ARM_ERRATA_828024
 	mrs	x0, S3_1_c15_c2_0	/* cpuactlr_el1 */
 	/* Disable non-allocate hint of w-b-n-a memory type */
-	mov	x0, #0x1 << 49
+	orr	x0, x0, #1 << 49
 	/* Disable write streaming no L1-allocate threshold */
-	mov	x0, #0x3 << 25
+	orr	x0, x0, #3 << 25
 	/* Disable write streaming no-allocate threshold */
-	mov	x0, #0x3 << 27
+	orr	x0, x0, #3 << 27
 	msr	S3_1_c15_c2_0, x0	/* cpuactlr_el1 */
 #endif
 
 #ifdef CONFIG_ARM_ERRATA_826974
 	mrs	x0, S3_1_c15_c2_0	/* cpuactlr_el1 */
 	/* Disable speculative load execution ahead of a DMB */
-	mov	x0, #0x1 << 59
+	orr	x0, x0, #1 << 59
 	msr	S3_1_c15_c2_0, x0	/* cpuactlr_el1 */
 #endif
 
-- 
1.9.1




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