diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/brya/variants/brask/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/mainboard/google/brya/variants/brask/gpio.c | 64 |
2 files changed, 68 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/brask/Makefile.inc b/src/mainboard/google/brya/variants/brask/Makefile.inc new file mode 100644 index 0000000000..8fe978f6ef --- /dev/null +++ b/src/mainboard/google/brya/variants/brask/Makefile.inc @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +bootblock-y += gpio.c + +ramstage-y += gpio.c diff --git a/src/mainboard/google/brya/variants/brask/gpio.c b/src/mainboard/google/brya/variants/brask/gpio.c new file mode 100644 index 0000000000..7bbe15551b --- /dev/null +++ b/src/mainboard/google/brya/variants/brask/gpio.c @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ + +#include <baseboard/gpio.h> +#include <baseboard/variants.h> +#include <commonlib/helpers.h> +#include <soc/gpio.h> +#include <vendorcode/google/chromeos/chromeos.h> + +/* Early pad configuration in bootblock */ +static const struct pad_config early_gpio_table[] = { + /* A13 : PMC_I2C_SCL ==> GSC_PCH_INT_ODL */ + PAD_CFG_GPI_APIC(GPP_A13, NONE, PLTRST, LEVEL, INVERT), + /* B7 : ISH_12C1_SDA ==> PCH_I2C_TPM_SDA */ + PAD_CFG_NF(GPP_B7, NONE, DEEP, NF2), + /* B8 : ISH_12C1_SCL ==> PCH_I2C_TPM_SCL */ + PAD_CFG_NF(GPP_B8, NONE, DEEP, NF2), + /* + * D1 : ISH_GP1 ==> FP_RST_ODL + * FP_RST_ODL comes out of reset as hi-z and does not have an external pull-down. + * To ensure proper power sequencing for the FPMCU device, reset signal is driven low + * early on in bootblock, followed by enabling of power. Reset signal is deasserted + * later on in ramstage. Since reset signal is asserted in bootblock, it results in + * FPMCU not working after a S3 resume. This is a known issue. + */ + PAD_CFG_GPO(GPP_D1, 0, DEEP), + /* D2 : ISH_GP2 ==> EN_FP_PWR */ + PAD_CFG_GPO(GPP_D2, 1, DEEP), + /* E15 : RSVD_TP ==> PCH_WP_OD */ + PAD_CFG_GPI_GPIO_DRIVER(GPP_E15, NONE, DEEP), + /* H10 : UART0_RXD ==> UART_PCH_RX_DBG_TX */ + PAD_CFG_NF(GPP_H10, NONE, DEEP, NF2), + /* H11 : UART0_TXD ==> UART_PCH_TX_DBG_RX */ + PAD_CFG_NF(GPP_H11, NONE, DEEP, NF2), + /* H13 : I2C7_SCL ==> EN_PP3300_SD */ + PAD_CFG_GPO(GPP_H13, 1, DEEP), + + /* CPU PCIe VGPIO for PEG60 */ + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_48, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_49, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_50, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_51, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_52, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_53, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_54, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_55, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_56, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_57, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_58, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_59, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_60, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_61, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_62, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_63, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_76, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_77, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_78, NONE, DEEP, NF1), + PAD_CFG_NF_VWEN(GPP_vGPIO_PCIE_79, NONE, DEEP, NF1), +}; + +const struct pad_config *variant_early_gpio_table(size_t *num) +{ + *num = ARRAY_SIZE(early_gpio_table); + return early_gpio_table; +} |