diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/volteer/mainboard.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/mainboard/google/volteer/mainboard.c b/src/mainboard/google/volteer/mainboard.c index 0850e745db..ea9e08f294 100644 --- a/src/mainboard/google/volteer/mainboard.c +++ b/src/mainboard/google/volteer/mainboard.c @@ -7,6 +7,8 @@ #include <drivers/spi/tpm/tpm.h> #include <ec/ec.h> #include <fw_config.h> +#include <gpio.h> +#include <intelblocks/gpio.h> #include <security/tpm/tss.h> #include <soc/gpio.h> #include <soc/pci_devs.h> @@ -136,6 +138,25 @@ static void mainboard_chip_init(void *chip_info) override_pads = variant_override_gpio_table(&override_num); gpio_configure_pads_with_override(base_pads, base_num, override_pads, override_num); + + /* + * Check SATAXPCIE1 (GPP_A12) RX status to determine if SSD is NVMe or SATA and set + * the IOSSTATE RX field to drive 0 or 1 back to the internal controller to ensure + * the attached device is not mis-detected on resume from S0ix. + */ + if (gpio_get(GPP_A12)) { + const struct pad_config gpio_pedet_nvme[] = { + PAD_CFG_NF_IOSSTATE(GPP_A12, NONE, DEEP, NF1, HIZCRx1), + }; + gpio_configure_pads(gpio_pedet_nvme, ARRAY_SIZE(gpio_pedet_nvme)); + printk(BIOS_INFO, "SATAXPCIE1 indicates PCIe NVMe is present\n"); + } else { + const struct pad_config gpio_pedet_sata[] = { + PAD_CFG_NF_IOSSTATE(GPP_A12, NONE, DEEP, NF1, HIZCRx0), + }; + gpio_configure_pads(gpio_pedet_sata, ARRAY_SIZE(gpio_pedet_sata)); + printk(BIOS_INFO, "SATAXPCIE1 indicates SATA SSD is present\n"); + } } void mainboard_silicon_init_params(FSP_S_CONFIG *params) |