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From 3f53513c2b16ce2f9a24975cb23b2b58e70ba0f2 Mon Sep 17 00:00:00 2001
From: Jae Hyun Yoo <jae.hyun.yoo@intel.com>
Date: Wed, 29 Jan 2020 14:55:44 -0800
Subject: [PATCH] Override OTP strap settings
This commit adds settings to override OTP strap.
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com>
---
arch/arm/mach-aspeed/ast2600/platform.S | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm/mach-aspeed/ast2600/platform.S b/arch/arm/mach-aspeed/ast2600/platform.S
index 80ba06802acd..e7ae9041093c 100644
--- a/arch/arm/mach-aspeed/ast2600/platform.S
+++ b/arch/arm/mach-aspeed/ast2600/platform.S
@@ -147,6 +147,26 @@ do_primary_core_setup:
/* unlock system control unit */
scu_unlock
+ /* disable CA7 CPU boot */
+ ldr r0, =AST_SCU_HW_STRAP1_CLR
+ movw r1, #0x0001 @; Disable ARM CA7 CPU boot
+ movt r1, #0x0000
+ str r1, [r0]
+
+ /* enable eSPI, debug interface and disable UART5 boot*/
+ ldr r0, =AST_SCU_HW_STRAP2_CLR
+ movw r1, #0x0040 @; Select eSPI
+ movt r1, #0x0000
+ orr r1, #0x0010 @; Enable debug interface
+ orr r1, #0x0100 @; Disable UART5 boot
+ str r1, [r0]
+
+ /* enable ACPI */
+ ldr r0, =AST_SCU_HW_STRAP2
+ ldr r1, [r0]
+ orr r1, #0x20 @; Enable ACPI
+ str r1, [r0]
+
/* identify AST2600 A0/A1 */
ldr r0, =AST_SCU_REV_ID
ldr r0, [r0]
--
2.7.4
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