diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/cannonlake/chip.c | 30 | ||||
| -rw-r--r-- | src/soc/intel/cannonlake/include/soc/gpio.h | 6 |
2 files changed, 35 insertions, 1 deletions
diff --git a/src/soc/intel/cannonlake/chip.c b/src/soc/intel/cannonlake/chip.c index 4604d80f1a..a643954a91 100644 --- a/src/soc/intel/cannonlake/chip.c +++ b/src/soc/intel/cannonlake/chip.c @@ -140,6 +140,33 @@ const char *soc_acpi_name(const struct device *dev) } #endif +/* + * TODO(furquan): Get rid of this workaround once FSP is fixed. Currently, FSP-S + * configures GPIOs when it should not and this results in coreboot GPIO + * configuration being overwritten. Until FSP is fixed, maintain the reference + * of GPIO config table from mainboard and use that to re-configure GPIOs after + * FSP-S is done. + */ +void cnl_configure_pads(const struct pad_config *cfg, size_t num_pads) +{ + static const struct pad_config *g_cfg; + static size_t g_num_pads; + + /* + * If cfg and num_pads are passed in from mainboard, maintain a + * reference to the GPIO table. + */ + if ((cfg == NULL) || (num_pads == 0)) { + cfg = g_cfg; + num_pads = g_num_pads; + } else { + g_cfg = cfg; + g_num_pads = num_pads; + } + + gpio_configure_pads(cfg, num_pads); +} + void soc_init_pre_device(void *chip_info) { /* Snapshot the current GPIO IRQ polarities. FSP is setting a @@ -154,6 +181,9 @@ void soc_init_pre_device(void *chip_info) /* Restore GPIO IRQ polarities back to previous settings. */ itss_restore_irq_polarities(GPIO_IRQ_START, GPIO_IRQ_END); + + /* TODO(furquan): Get rid of this workaround once FSP is fixed. */ + cnl_configure_pads(NULL, 0); } static void pci_domain_set_resources(struct device *dev) diff --git a/src/soc/intel/cannonlake/include/soc/gpio.h b/src/soc/intel/cannonlake/include/soc/gpio.h index cbc230a6a4..718372ddc1 100644 --- a/src/soc/intel/cannonlake/include/soc/gpio.h +++ b/src/soc/intel/cannonlake/include/soc/gpio.h @@ -16,7 +16,6 @@ #ifndef _SOC_CANNONLAKE_GPIO_H_ #define _SOC_CANNONLAKE_GPIO_H_ - #if IS_ENABLED(CONFIG_SOC_INTEL_CANNONLAKE_PCH_H) #include <soc/gpio_defs_cnp_h.h> #define CROS_GPIO_DEVICE_NAME "INT3450:00" @@ -26,4 +25,9 @@ #endif #include <intelblocks/gpio.h> +#ifndef __ACPI__ +struct pad_config; +void cnl_configure_pads(const struct pad_config *cfg, size_t num_pads); +#endif + #endif |