diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch index 7868c03d6..1b2cc83a1 100644 --- a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0004-AST2600-Adjust-default-GPIO-settings.patch @@ -1,4 +1,4 @@ -From 2e848b74af709f84d1e9fe27a58a74bfc686bfff Mon Sep 17 00:00:00 2001 +From b6bce26bf19e74863e145e6e6e1f6e458077a31a Mon Sep 17 00:00:00 2001 From: Jae Hyun Yoo <jae.hyun.yoo@intel.com> Date: Fri, 3 Jan 2020 15:14:09 -0800 Subject: [PATCH] AST2600: Adjust default GPIO settings @@ -10,14 +10,14 @@ Subject: [PATCH] AST2600: Adjust default GPIO settings Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> --- - board/aspeed/ast2600_intel/intel.c | 44 ++++++++++++++++++++++++++++++++++++++ - 1 file changed, 44 insertions(+) + board/aspeed/ast2600_intel/intel.c | 50 ++++++++++++++++++++++++++++++++++++++ + 1 file changed, 50 insertions(+) diff --git a/board/aspeed/ast2600_intel/intel.c b/board/aspeed/ast2600_intel/intel.c -index eb9b3959625e..25c61d1a806c 100644 +index d1ac8651ac6c..b1a08db91bec 100644 --- a/board/aspeed/ast2600_intel/intel.c +++ b/board/aspeed/ast2600_intel/intel.c -@@ -151,6 +151,48 @@ static void sgpio_init(void) +@@ -162,6 +162,54 @@ static void sgpio_init(void) SCU_BASE | SCU_414); } @@ -50,11 +50,17 @@ index eb9b3959625e..25c61d1a806c 100644 +#define SCU_610_GPIOB6 BIT(14) + writel(readl(SCU_BASE | SCU_610) | SCU_610_GPIOB6, SCU_BASE | SCU_610); + ++ /* ++ * GPIO C5 has a connection between BMC(3.3v) and CPU(1.0v) so if we ++ * set it as an logic high output, it will be clipped by a protection ++ * circuit in the CPU and eventually the signal will be detected as ++ * logic low. So we leave this GPIO as an input so that the signal ++ * can be pulled up by a CPU internal resister. The signal will be ++ * 1.0v logic high resultingy. ++ */ +#define GPIO_C5 BIT(21) -+ writel(readl(AST_GPIO_BASE | GPIO_004) | GPIO_C5, ++ writel(readl(AST_GPIO_BASE | GPIO_004) & ~GPIO_C5, + AST_GPIO_BASE | GPIO_004); -+ writel(readl(AST_GPIO_BASE | GPIO_000) | GPIO_C5, -+ AST_GPIO_BASE | GPIO_000); + +#define GPIO_G6 BIT(22) + writel(readl(AST_GPIO_BASE | GPIO_024) | GPIO_G6, @@ -63,10 +69,10 @@ index eb9b3959625e..25c61d1a806c 100644 + AST_GPIO_BASE | GPIO_020); +} + - void espi_init(void); - int arch_interrupt_init_early(void); - -@@ -167,6 +209,8 @@ int board_early_init_f(void) + static void timer_handler(void *regs) + { + printf("+"); +@@ -175,6 +223,8 @@ int board_early_init_f(void) * I am not sure if it actually does anything... */ arch_interrupt_init_early(); |