diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch new file mode 100644 index 000000000..9af713c99 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-bsp/u-boot/files/0008-AST2600-Add-TPM-pulse-trigger.patch @@ -0,0 +1,60 @@ +From 9d2d9b9db7796a49d03ac8b19dfbdefbe840c506 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 | 27 +++++++++++++++++++++++++++ + 1 file changed, 27 insertions(+) + +diff --git a/board/aspeed/ast2600_intel/intel.c b/board/aspeed/ast2600_intel/intel.c +index 04fd450d14fc..34b37cc24f91 100644 +--- a/board/aspeed/ast2600_intel/intel.c ++++ b/board/aspeed/ast2600_intel/intel.c +@@ -35,6 +35,31 @@ int gpio_abort(void) + return value <= 0 ? 0 : 1; + } + ++/* use GPIOC2 on intel boards */ ++#define TPM_EN_GPIO "gpio@1e78000018" ++ ++int enable_onboard_tpm(void) ++{ ++ struct gpio_desc desc; ++ int ret; ++ ++ ret = dm_gpio_lookup_name(TPM_EN_GPIO, &desc); ++ if (ret) ++ return ret; ++ ret = dm_gpio_request(&desc, "tpm_en_pulse"); ++ if (ret) ++ return ret; ++ if (dm_gpio_is_valid(&desc)) { ++ dm_gpio_set_value(&desc, 1); ++ mdelay(50); ++ dm_gpio_set_value(&desc, 0); ++ printf("TPM: Pulse triggered\n"); ++ } ++ dm_gpio_free(desc.dev, &desc); ++ ++ return ret; ++} ++ + #define SCU_BASE 0x1E6E2000 + #define SCU_338 0x338 //Generate UART 24 MHz Reference from UXCLK + #define SCU_33C 0x33c //Generate UART 24 MHz Reference from HUXCLK +@@ -234,6 +259,8 @@ int board_early_init_r(void) + + espi_init(); + ++ (void) enable_onboard_tpm(); ++ + return 0; + } + +-- +2.7.4 + |