diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0007-ast2600-Override-OTP-strap-settings.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0007-ast2600-Override-OTP-strap-settings.patch | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0007-ast2600-Override-OTP-strap-settings.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0007-ast2600-Override-OTP-strap-settings.patch new file mode 100644 index 000000000..e8ffb4e72 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0007-ast2600-Override-OTP-strap-settings.patch @@ -0,0 +1,78 @@ +From ddf356e738ab147775bf49a3a4fae179c0dde9ef 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] ast2600: Override OTP strap settings + +This commit adds settings to override OTP strap. +Also, this commit disables SoC debug interface. + +Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +--- + arch/arm/mach-aspeed/ast2600/platform.S | 26 +++++++++++++++++++++++--- + 1 file changed, 23 insertions(+), 3 deletions(-) + +diff --git a/arch/arm/mach-aspeed/ast2600/platform.S b/arch/arm/mach-aspeed/ast2600/platform.S +index d107ed80a835..eb3cb2f38cb6 100644 +--- a/arch/arm/mach-aspeed/ast2600/platform.S ++++ b/arch/arm/mach-aspeed/ast2600/platform.S +@@ -45,7 +45,9 @@ + #define AST_SCU_HPLL_PARAM_EXT (AST_SCU_BASE + 0x204) + #define AST_SCU_MFP_CTRL15 (AST_SCU_BASE + 0x454) + #define AST_SCU_HW_STRAP1 (AST_SCU_BASE + 0x500) ++#define AST_SCU_HW_STRAP1_CLR (AST_SCU_BASE + 0x504) + #define AST_SCU_HW_STRAP2 (AST_SCU_BASE + 0x510) ++#define AST_SCU_HW_STRAP2_CLR (AST_SCU_BASE + 0x514) + #define AST_SCU_CA7_CTRL (AST_SCU_BASE + 0x800) + #define AST_SCU_CA7_AXI_PREFETCH_START (AST_SCU_BASE + 0x808) + #define AST_SCU_CA7_AXI_PREFETCH_END (AST_SCU_BASE + 0x80C) +@@ -146,6 +148,26 @@ 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] +@@ -241,19 +263,17 @@ wait_lock: + ldr r1, =AST_FMC_CE0_CTRL + str r0, [r1] + +-#if 0 + /* disable UART-based SoC Debug Interface UART5 and P2A bridge*/ + ldr r0, =AST_SCU_DEBUG_CTRL + ldr r1, [r0] + orr r1, #0x03 + str r1, [r0] +- ++ + /* disable UART-based SoC Debug Interface UART1 and LPC2AHB bridge */ + ldr r0, =AST_SCU_DEBUG_CTRL2 + ldr r1, [r0] + orr r1, #0x0A + str r1, [r0] +-#endif + + /* Strongest LADESPID Driving Strngth */ + ldr r0, =AST_SCU_MFP_CTRL15 +-- +2.7.4 + |