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From 899934a036171eb9174e800ba6367b8b8a3e70c4 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 | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/arm/mach-aspeed/ast2600/platform.S b/arch/arm/mach-aspeed/ast2600/platform.S
index de97cccc78b7..ab8d10b70b9a 100644
--- a/arch/arm/mach-aspeed/ast2600/platform.S
+++ b/arch/arm/mach-aspeed/ast2600/platform.S
@@ -40,6 +40,7 @@
#define AST_SCU_HPLL_PARAM (AST_SCU_BASE + 0x200)
#define AST_SCU_HPLL_PARAM_EXT (AST_SCU_BASE + 0x204)
#define AST_SCU_HW_STRAP1 (AST_SCU_BASE + 0x500)
+#define AST_SCU_HW_STRAP2 (AST_SCU_BASE + 0x510)
#define AST_SCU_CA7_PARITY_CHK (AST_SCU_BASE + 0x820)
#define AST_SCU_CA7_PARITY_CLR (AST_SCU_BASE + 0x824)
@@ -133,6 +134,13 @@ do_primary_core_setup:
/* unlock system control unit */
scu_unlock
+ /* enable eSPI and ACPI */
+ ldr r0, =AST_SCU_HW_STRAP2
+ ldr r1, [r0]
+ bic r1, #0x40 @; Select eSPI
+ orr r1, #0x20 @; Enable ACPI
+ str r1, [r0]
+
/* tune-up CPU clock for AST2600 A0 */
ldr r0, =AST_SCU_REV_ID
ldr r0, [r0]
--
2.7.4
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