mb/google/nissa/var/riven: Disable unused GPIOs based on fw_config
Disable LTE, stylus and WFC related GPIOs based on fw_config.
BUG=b:337169542
TEST=Local build successfully.
Change-Id: I91adc4e70d0d23b737d4fa6725cd96e63108f874
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83062
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
diff --git a/src/mainboard/google/brya/variants/riven/fw_config.c b/src/mainboard/google/brya/variants/riven/fw_config.c
index 678d87e..7967282 100644
--- a/src/mainboard/google/brya/variants/riven/fw_config.c
+++ b/src/mainboard/google/brya/variants/riven/fw_config.c
@@ -5,6 +5,39 @@
#include <console/console.h>
#include <fw_config.h>
+static const struct pad_config lte_disable_pads[] = {
+ /* A8 : WWAN_RF_DISABLE_ODL */
+ PAD_NC(GPP_A8, NONE),
+ /* D6 : WWAN_EN */
+ PAD_NC(GPP_D6, NONE),
+ /* F12 : WWAN_RST_L */
+ PAD_NC_LOCK(GPP_F12, NONE, LOCK_CONFIG),
+ /* H23 : WWAN_SAR_DETECT_ODL */
+ PAD_NC(GPP_H23, NONE),
+};
+
+static const struct pad_config wfc_disable_pads[] = {
+ /* D3 : WCAM_RST_L */
+ PAD_NC_LOCK(GPP_D3, NONE, LOCK_CONFIG),
+ /* D15 : EN_PP2800_WCAM_X */
+ PAD_NC_LOCK(GPP_D15, NONE, LOCK_CONFIG),
+ /* D16 : EN_PP1800_PP1200_WCAM_X */
+ PAD_NC_LOCK(GPP_D16, NONE, LOCK_CONFIG),
+ /* H22 : WCAM_MCLK_R */
+ PAD_NC(GPP_H22, NONE),
+ /* R6 : DMIC_WCAM_CLK_R */
+ PAD_NC(GPP_R6, NONE),
+ /* R7 : DMIC_WCAM_DATA */
+ PAD_NC(GPP_R7, NONE),
+};
+
+static const struct pad_config stylus_disable_pads[] = {
+ /* F13 : SOC_PEN_DETECT_R_ODL */
+ PAD_NC_LOCK(GPP_F13, NONE, LOCK_CONFIG),
+ /* F15 : SOC_PEN_DETECT_ODL */
+ PAD_NC_LOCK(GPP_F15, NONE, LOCK_CONFIG),
+};
+
static const struct pad_config emmc_disable_pads[] = {
/* I7 : EMMC_CMD */
PAD_NC(GPP_I7, NONE),
@@ -34,7 +67,30 @@
void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
{
- if (fw_config_is_provisioned() && !fw_config_probe(FW_CONFIG(STORAGE, STORAGE_EMMC))) {
+ if (!fw_config_is_provisioned()) {
+ printk(BIOS_WARNING, "FW_CONFIG is not provisioned. Exiting...\n");
+ return;
+ }
+
+ if (!fw_config_probe(FW_CONFIG(DB_USB, DB_1C_LTE))) {
+ printk(BIOS_INFO, "Disable LTE-related GPIO pins on Riven.\n");
+ gpio_padbased_override(padbased_table, lte_disable_pads,
+ ARRAY_SIZE(lte_disable_pads));
+ }
+
+ if (fw_config_probe(FW_CONFIG(WFC, WFC_ABSENT))) {
+ printk(BIOS_INFO, "Disable MIPI WFC GPIO pins.\n");
+ gpio_padbased_override(padbased_table, wfc_disable_pads,
+ ARRAY_SIZE(wfc_disable_pads));
+ }
+
+ if (fw_config_probe(FW_CONFIG(STYLUS, STYLUS_ABSENT))) {
+ printk(BIOS_INFO, "Disable Stylus GPIO pins.\n");
+ gpio_padbased_override(padbased_table, stylus_disable_pads,
+ ARRAY_SIZE(stylus_disable_pads));
+ }
+
+ if (!fw_config_probe(FW_CONFIG(STORAGE, STORAGE_EMMC))) {
printk(BIOS_INFO, "Disable eMMC GPIO pins.\n");
gpio_padbased_override(padbased_table, emmc_disable_pads,
ARRAY_SIZE(emmc_disable_pads));