diff options
Diffstat (limited to 'meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch new file mode 100644 index 000000000..f3cb01143 --- /dev/null +++ b/meta-openbmc-mods/meta-ast2600/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch @@ -0,0 +1,50 @@ +From a3b27074feba66aaf63930197b4aa507abdcc983 Mon Sep 17 00:00:00 2001 +From: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +Date: Wed, 25 Mar 2020 15:04:26 -0700 +Subject: [PATCH] AST2600: Add TPM pulse trigger + +This commit adds TPM pulse trigger into u-boot booting. + +Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@intel.com> +--- + board/aspeed/ast2600_intel/intel.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) + +diff --git a/board/aspeed/ast2600_intel/intel.c b/board/aspeed/ast2600_intel/intel.c +index 634b8ce20e7d..e8165694c312 100644 +--- a/board/aspeed/ast2600_intel/intel.c ++++ b/board/aspeed/ast2600_intel/intel.c +@@ -234,6 +234,21 @@ static void set_gpio_default_state(void) + AST_GPIO_BASE + GPIO_080); + } + ++void enable_onboard_tpm(void) ++{ ++#define GPIO_C2 BIT(18) ++ ++ writel(readl(AST_GPIO_BASE | GPIO_004) | GPIO_C2, ++ AST_GPIO_BASE | GPIO_004); ++ writel(readl(AST_GPIO_BASE | GPIO_000) | GPIO_C2, ++ AST_GPIO_BASE | GPIO_000); ++ ++ mdelay(50); ++ ++ writel(readl(AST_GPIO_BASE | GPIO_000) & ~GPIO_C2, ++ AST_GPIO_BASE | GPIO_000); ++} ++ + static void timer_handler(void *regs) + { + printf("+"); +@@ -264,6 +279,8 @@ int board_early_init_r(void) + debug("board_early_init_r\n"); + /* timer_enable(0, 1, timer_handler); */ + ++ enable_onboard_tpm(); ++ + return 0; + } + +-- +2.17.1 + |