1 files changed, 56 insertions, 0 deletions
diff --git a/src/mainboard/google/brya/variants/primus/fw_config.c b/src/mainboard/google/brya/variants/primus/fw_config.c
new file mode 100644
index 000000000000..fe74a46f7c24
--- /dev/null
+++ b/src/mainboard/google/brya/variants/primus/fw_config.c
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootstate.h>
+#include <console/console.h>
+#include <fw_config.h>
+#include <gpio.h>
+
+static const struct pad_config dmic_enable_pads[] = {
+	PAD_CFG_NF(GPP_S2, NONE, DEEP, NF2),	/* DMIC_CLK0_R */
+	PAD_CFG_NF(GPP_S3, NONE, DEEP, NF2),	/* DMIC_DATA0_R */
+
+};
+
+static const struct pad_config dmic_disable_pads[] = {
+	PAD_NC(GPP_S2, NONE),
+	PAD_NC(GPP_S3, NONE),
+};
+
+static const struct pad_config i2s_enable_pads[] = {
+	PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2),	/* I2S_HP_SCLK_R */
+	PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2),	/* I2S_HP_SFRM_R */
+	PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2),	/* I2S_PCH_TX_HP_RX_STRAP */
+	PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2),	/* I2S_PCH_RX_HP_TX */
+	PAD_CFG_NF(GPP_R4, NONE, DEEP, NF2),	/* I2S_SPKR_SCLK_R */
+	PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2),	/* I2S_SPKR_SFRM_R */
+	PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2),	/* I2S_PCH_TX_SPKR_RX_R */
+	PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2),	/* I2S_PCH_RX_SPKR_TX */
+};
+
+static const struct pad_config i2s_disable_pads[] = {
+	PAD_NC(GPP_R0, NONE),
+	PAD_NC(GPP_R1, NONE),
+	PAD_NC(GPP_R2, NONE),
+	PAD_NC(GPP_R3, NONE),
+	PAD_NC(GPP_R4, NONE),
+	PAD_NC(GPP_R5, NONE),
+	PAD_NC(GPP_R6, NONE),
+	PAD_NC(GPP_R7, NONE),
+};
+
+static void fw_config_handle(void *unused)
+{
+	if (!fw_config_is_provisioned() || fw_config_probe(FW_CONFIG(AUDIO, AUDIO_UNKNOWN))) {
+		printk(BIOS_INFO, "Disable audio related GPIO pins.\n");
+		gpio_configure_pads(i2s_disable_pads, ARRAY_SIZE(i2s_disable_pads));
+		gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
+		return;
+	}
+
+	if (fw_config_probe(FW_CONFIG(AUDIO, MAX98360_ALC5682I_I2S))) {
+		printk(BIOS_INFO, "Configure audio over I2S with MAX98357 ALC5682I.\n");
+		gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
+		gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads));
+	}
+}
+BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);