diff options
Diffstat (limited to 'src/mainboard')
5 files changed, 68 insertions, 2 deletions
diff --git a/src/mainboard/google/skyrim/Kconfig b/src/mainboard/google/skyrim/Kconfig index bedddd7b85..b21291ea7d 100644 --- a/src/mainboard/google/skyrim/Kconfig +++ b/src/mainboard/google/skyrim/Kconfig @@ -26,6 +26,8 @@ config BOARD_SPECIFIC_OPTIONS select ELOG_GSMI select FW_CONFIG select MAINBOARD_HAS_CHROMEOS + select MAINBOARD_HAS_I2C_TPM_CR50 + select MAINBOARD_HAS_TPM2 select SOC_AMD_SABRINA select SOC_AMD_COMMON_BLOCK_USE_ESPI @@ -35,6 +37,14 @@ config CHROMEOS config DEVICETREE default "variants/baseboard/devicetree.cb" +config DRIVER_TPM_I2C_BUS + hex + default 0x03 + +config DRIVER_TPM_I2C_ADDR + hex + default 0x50 + config FMDFILE default "src/mainboard/\$(CONFIG_MAINBOARD_DIR)/chromeos.fmd" diff --git a/src/mainboard/google/skyrim/bootblock.c b/src/mainboard/google/skyrim/bootblock.c index d1000d30b9..5a1c4daa9b 100644 --- a/src/mainboard/google/skyrim/bootblock.c +++ b/src/mainboard/google/skyrim/bootblock.c @@ -5,7 +5,15 @@ void bootblock_mainboard_early_init(void) { - /* TODO: Perform mainboard initialization */ + size_t num_gpios, override_num_gpios; + const struct soc_amd_gpio *gpios, *override_gpios; + + variant_tpm_gpio_table(&gpios, &num_gpios); + gpio_configure_pads(gpios, num_gpios); + + variant_early_gpio_table(&gpios, &num_gpios); + variant_early_override_gpio_table(&override_gpios, &override_num_gpios); + gpio_configure_pads_with_override(gpios, num_gpios, override_gpios, override_num_gpios); } void bootblock_mainboard_init(void) diff --git a/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb b/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb index a3440735c1..921ace9925 100644 --- a/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/skyrim/variants/baseboard/devicetree.cb @@ -128,5 +128,12 @@ chip soc/amd/sabrina device ref i2c_0 on end device ref i2c_1 on end device ref i2c_2 on end - device ref i2c_3 on end + device ref i2c_3 on + chip drivers/i2c/tpm + register "hid" = ""GOOG0005"" + register "desc" = ""Ti50 TPM"" + register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_18)" + device i2c 50 on end + end + end end # chip soc/amd/sabrina diff --git a/src/mainboard/google/skyrim/variants/baseboard/gpio.c b/src/mainboard/google/skyrim/variants/baseboard/gpio.c index 6e079d0380..16a03ba780 100644 --- a/src/mainboard/google/skyrim/variants/baseboard/gpio.c +++ b/src/mainboard/google/skyrim/variants/baseboard/gpio.c @@ -141,6 +141,15 @@ static const struct soc_amd_gpio base_gpio_table[] = { PAD_NF(GPIO_148, I2C1_SDA, PULL_NONE), }; +static const struct soc_amd_gpio tpm_gpio_table[] = { + /* I2C3_SCL */ + PAD_NF(GPIO_19, I2C3_SCL, PULL_NONE), + /* I2C3_SDA */ + PAD_NF(GPIO_20, I2C3_SDA, PULL_NONE), + /* GSC_SOC_INT_L */ + PAD_INT(GPIO_18, PULL_NONE, EDGE_LOW, STATUS_DELIVERY), +}; + /* GPIO configuration for sleep */ static const struct soc_amd_gpio sleep_gpio_table[] = { /* TODO: Fill sleep gpio configuration */ @@ -151,6 +160,11 @@ static const struct soc_amd_gpio bootblock_gpio_table[] = { /* TODO: Fill bootblock gpio configuration */ }; +/* Early GPIO configuration */ +static const struct soc_amd_gpio early_gpio_table[] = { + /* TODO: Fill early gpio configuration */ +}; + __weak void variant_base_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) { *size = ARRAY_SIZE(base_gpio_table); @@ -169,8 +183,26 @@ __weak void variant_bootblock_gpio_table(const struct soc_amd_gpio **gpio, size_ *gpio = bootblock_gpio_table; } +__weak void variant_early_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) +{ + *size = ARRAY_SIZE(early_gpio_table); + *gpio = early_gpio_table; +} + +__weak void variant_early_override_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) +{ + *size = 0; + *gpio = NULL; +} + __weak void variant_sleep_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) { *size = ARRAY_SIZE(sleep_gpio_table); *gpio = sleep_gpio_table; } + +__weak void variant_tpm_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) +{ + *size = ARRAY_SIZE(tpm_gpio_table); + *gpio = tpm_gpio_table; +} diff --git a/src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h index b83344894e..a99dd26c0d 100644 --- a/src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h +++ b/src/mainboard/google/skyrim/variants/baseboard/include/baseboard/variants.h @@ -22,7 +22,16 @@ void variant_override_gpio_table(const struct soc_amd_gpio **gpio, size_t *size) /* This function provides GPIO init in bootblock. */ void variant_bootblock_gpio_table(const struct soc_amd_gpio **gpio, size_t *size); +/* This function provides early GPIO init in early bootblock or psp. */ +void variant_early_gpio_table(const struct soc_amd_gpio **gpio, size_t *size); + +/* This function allows variant to override any early GPIO init in early bootblock or psp. */ +void variant_early_override_gpio_table(const struct soc_amd_gpio **gpio, size_t *size); + /* This function provides GPIO settings before entering sleep. */ void variant_sleep_gpio_table(const struct soc_amd_gpio **gpio, size_t *size); +/* This function provides GPIO settings for TPM i2c bus. */ +void variant_tpm_gpio_table(const struct soc_amd_gpio **gpio, size_t *size); + #endif /* __BASEBOARD_VARIANTS_H__ */ |