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-rw-r--r--src/soc/intel/cannonlake/chip.c30
-rw-r--r--src/soc/intel/cannonlake/include/soc/gpio.h6
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