diff options
| author | Karthikeyan Ramasubramanian <kramasub@chromium.org> | 2021-03-15 10:31:37 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2021-03-22 03:50:08 +0000 |
| commit | 8f7fca53709e7ddd81efece6906d3bd019e878c0 (patch) | |
| tree | fe633ee9ecda0a2f111b2d6d64a4155187c48c97 /src | |
| parent | 699a709bdcee250136a8b5f7af13a6d534598f1d (diff) | |
mb/google/guybrush: Enable AP <-> H1 communication
Configure H1 I2C and Interrupt GPIOs during the early initialization.
Add devicetree configuration for H1 device and enable the required
config items.
BUG=b:180528902
TEST=Build Guybrush mainboard.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I040a5e6101bab0c7425d7b6cc6fbed3b479a5a44
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51544
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/guybrush/Kconfig | 10 | ||||
| -rw-r--r-- | src/mainboard/google/guybrush/variants/baseboard/devicetree.cb | 9 | ||||
| -rw-r--r-- | src/mainboard/google/guybrush/variants/baseboard/gpio.c | 6 |
3 files changed, 25 insertions, 0 deletions
diff --git a/src/mainboard/google/guybrush/Kconfig b/src/mainboard/google/guybrush/Kconfig index 77e4a195af..5645c1750b 100644 --- a/src/mainboard/google/guybrush/Kconfig +++ b/src/mainboard/google/guybrush/Kconfig @@ -22,6 +22,8 @@ config BOARD_SPECIFIC_OPTIONS select HAVE_EM100_SUPPORT select HAVE_SPD_IN_CBFS select MAINBOARD_HAS_CHROMEOS + select MAINBOARD_HAS_I2C_TPM_CR50 + select MAINBOARD_HAS_TPM2 select SOC_AMD_CEZANNE select SOC_AMD_COMMON_BLOCK_USE_ESPI @@ -50,6 +52,14 @@ config AMD_FWM_POSITION_INDEX help TODO: might need to be adapted for better placement of files in cbfs +config DRIVER_TPM_I2C_BUS + hex + default 0x03 + +config DRIVER_TPM_I2C_ADDR + hex + default 0x50 + config EFS_SPI_READ_MODE int default 0 if EM100 # Normal read mode diff --git a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb index 3205d21680..4d57b52810 100644 --- a/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/guybrush/variants/baseboard/devicetree.cb @@ -132,4 +132,13 @@ chip soc/amd/cezanne end end end # domain + + device ref i2c_3 on + chip drivers/i2c/tpm + register "hid" = ""GOOG0005"" + register "desc" = ""Cr50 TPM"" + register "irq_gpio" = "ACPI_GPIO_IRQ_EDGE_LOW(GPIO_3)" + device i2c 50 on end + end + end end # chip soc/amd/cezanne diff --git a/src/mainboard/google/guybrush/variants/baseboard/gpio.c b/src/mainboard/google/guybrush/variants/baseboard/gpio.c index 1cd8c23e0f..e386658624 100644 --- a/src/mainboard/google/guybrush/variants/baseboard/gpio.c +++ b/src/mainboard/google/guybrush/variants/baseboard/gpio.c @@ -163,6 +163,12 @@ static const struct soc_amd_gpio base_gpio_table[] = { /* Early GPIO configuration */ static const struct soc_amd_gpio early_gpio_table[] = { + /* GSC_SOC_INT_L */ + PAD_INT(GPIO_3, PULL_NONE, EDGE_LOW, STATUS_DELIVERY), + /* I2C3_SCL */ + PAD_NF(GPIO_19, I2C3_SCL, PULL_NONE), + /* I2C3_SDA */ + PAD_NF(GPIO_20, I2C3_SDA, PULL_NONE), /* ESPI1_DATA0 */ PAD_NF(GPIO_104, SPI2_DO_ESPI2_D0, PULL_NONE), /* ESPI1_DATA1 */ |