diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0029-Set-UART-routing-in-lowlevel_init.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0029-Set-UART-routing-in-lowlevel_init.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0029-Set-UART-routing-in-lowlevel_init.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0029-Set-UART-routing-in-lowlevel_init.patch new file mode 100644 index 000000000..4d8d97d10 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0029-Set-UART-routing-in-lowlevel_init.patch @@ -0,0 +1,43 @@ +From b6f6c6fe9b92e3b1bbed12e27a65e822a44da528 Mon Sep 17 00:00:00 2001 +From: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +Date: Mon, 26 Apr 2021 13:20:21 -0700 +Subject: [PATCH] Set UART routing in lowlevel_init + +This commit sets the UART routing back to default in lowlevel_init +to prevent any data dropping from the physical host serial until +SOL service is activated. + +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 0d038920b150..dce15c83a093 100644 +--- a/arch/arm/mach-aspeed/ast2600/platform.S ++++ b/arch/arm/mach-aspeed/ast2600/platform.S +@@ -79,6 +79,9 @@ + #define AST_GPIO_BASE (0x1E780000) + #define AST_GPIOYZ_DATA_VALUE (AST_GPIO_BASE + 0x1E0) + ++#define AST_LPC_BASE 0x1E789000 ++#define AST_LPC_HICRA (AST_LPC_BASE + 0x09C) ++ + /* Revision ID */ + #define REV_ID_AST2600A0 0x05000303 + #define REV_ID_AST2600A1 0x05010303 +@@ -409,6 +412,11 @@ skip_fill_wip_bit: + orr r1, #0x0A + str r1, [r0] + ++ /* set UART routing back to default */ ++ ldr r0, =AST_LPC_HICRA ++ ldr r1, =0x0 ++ str r1, [r0] ++ + /* relocate mailbox insn. for cpuN polling SMP go signal */ + adrl r0, mailbox_insn + adrl r1, mailbox_insn_end +-- +2.17.1 + |