src/mainboard/google/brya/variants/skolas/fw_config.c

/* 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 */
	PAD_CFG_NF(GPP_S6, NONE, DEEP, NF2),	/* DMIC_CLK1_R */
	PAD_CFG_NF(GPP_S7, NONE, DEEP, NF2),	/* DMIC_DATA1_R */
};

static const struct pad_config dmic_disable_pads[] = {
	PAD_NC(GPP_S2, NONE),
	PAD_NC(GPP_S3, NONE),
	PAD_NC(GPP_S6, NONE),
	PAD_NC(GPP_S7, NONE),
};

static const struct pad_config sndw_enable_pads[] = {
	PAD_CFG_NF(GPP_S0, NONE, DEEP, NF1),	/* SDW_HP_CLK_R */
	PAD_CFG_NF(GPP_S1, NONE, DEEP, NF1),	/* SDW_HP_DATA_R */
	PAD_CFG_NF(GPP_S4, NONE, DEEP, NF1),	/* SDW_SPKR_CLK */
	PAD_CFG_NF(GPP_S5, NONE, DEEP, NF1),	/* SDW_SPKR_DATA */
};

static const struct pad_config max98360_enable_pads[] = {
	PAD_CFG_NF(GPP_S0, NONE, DEEP, NF4),	/* I2S_SPKR_SCLK_R */
	PAD_CFG_NF(GPP_S1, NONE, DEEP, NF4),	/* I2S_SPKR_SFRM_R */
	PAD_CFG_NF(GPP_S2, NONE, DEEP, NF4),    /* I2S_PCH_TX_SPKR_RX_R */
	PAD_CFG_NF(GPP_S3, NONE, DEEP, NF4),    /* I2S_PCH_RX_SPKR_TX */
	PAD_CFG_NF(GPP_S6, NONE, DEEP, NF2),    /* DMIC_CLK0_R */
	PAD_CFG_NF(GPP_S7, NONE, DEEP, NF2),    /* DMIC_DATA0_R */
	PAD_CFG_NF(GPP_R4, NONE, DEEP, NF3),    /* DMIC_CLK1_R */
	PAD_CFG_NF(GPP_R5, NONE, DEEP, NF3),    /* DMIC_DATA1_R */
	PAD_NC(GPP_R6, NONE),
	PAD_NC(GPP_R7, NONE),
};

static const struct pad_config nau8318_enable_pads[] = {
	PAD_CFG_GPO(GPP_R7, 0, DEEP),           /* SPK_BEEP_EN */
};

static const struct pad_config sndw_disable_pads[] = {
	PAD_NC(GPP_S0, NONE),
	PAD_NC(GPP_S1, NONE),
	PAD_NC(GPP_S4, NONE),
	PAD_NC(GPP_S5, NONE),
};

static const struct pad_config i2s0_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 */
};

static const struct pad_config i2s2_enable_pads[] = {
	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 i2s0_disable_pads[] = {
	PAD_NC(GPP_R0, NONE),
	PAD_NC(GPP_R1, NONE),
	PAD_NC(GPP_R2, NONE),
	PAD_NC(GPP_R3, NONE),
};

static const struct pad_config i2s2_disable_pads[] = {
	PAD_NC(GPP_R4, NONE),
	PAD_NC(GPP_R5, NONE),
	PAD_NC(GPP_R6, NONE),
	PAD_NC(GPP_R7, NONE),
};

static const struct pad_config bt_i2s_enable_pads[] = {
	PAD_CFG_NF(GPP_VGPIO_30, NONE, DEEP, NF3),	/* BT_I2S_BCLK */
	PAD_CFG_NF(GPP_VGPIO_31, NONE, DEEP, NF3),	/* BT_I2S_SYNC */
	PAD_CFG_NF(GPP_VGPIO_32, NONE, DEEP, NF3),	/* BT_I2S_SDO */
	PAD_CFG_NF(GPP_VGPIO_33, NONE, DEEP, NF3),	/* BT_I2S_SDI */
	PAD_CFG_NF(GPP_VGPIO_34, NONE, DEEP, NF1),	/* SSP2_SCLK */
	PAD_CFG_NF(GPP_VGPIO_35, NONE, DEEP, NF1),	/* SSP2_SFRM */
	PAD_CFG_NF(GPP_VGPIO_36, NONE, DEEP, NF1),	/* SSP_TXD */
	PAD_CFG_NF(GPP_VGPIO_37, NONE, DEEP, NF1),	/* SSP_RXD */
};

static const struct pad_config bt_i2s_disable_pads[] = {
	PAD_NC(GPP_VGPIO_30, NONE),
	PAD_NC(GPP_VGPIO_31, NONE),
	PAD_NC(GPP_VGPIO_32, NONE),
	PAD_NC(GPP_VGPIO_33, NONE),
	PAD_NC(GPP_VGPIO_34, NONE),
	PAD_NC(GPP_VGPIO_35, NONE),
	PAD_NC(GPP_VGPIO_36, NONE),
	PAD_NC(GPP_VGPIO_37, NONE),
};

static const struct pad_config lte_disable_pads[] = {
	/* A7  : WWAN_PCIE_WAKE_ODL */
	PAD_NC(GPP_A7, NONE),
	/* A8  : WWAN_RF_DISABLE_ODL */
	PAD_NC(GPP_A8, NONE),
	/* D5  : SRCCLKREQ0# ==> WWAN_DPR_SAR_ODL */
	PAD_NC(GPP_D5, NONE),
	/* E0  : SATAXPCIE0 ==> WWAN_PERST_L */
	PAD_NC(GPP_E0, NONE),
	/* E10 : THC0_SPI1_CS# ==> WWAN_CONFIG0 */
	PAD_NC_LOCK(GPP_E10, NONE, LOCK_CONFIG),
	/* E16 : WWAN_RST_L */
	PAD_NC(GPP_E16, NONE),
	/* E17 : THC0_SPI1_INT# ==> WWAN_CONFIG3 */
	PAD_NC_LOCK(GPP_E17, NONE, LOCK_CONFIG),
	/* F21 : EXT_PWR_GATE2# ==> WWAN_FCPO_L */
	PAD_NC(GPP_F21, NONE),
	/* H23 : SRCCLKREQ5# ==> WWAN_CLKREQ_ODL */
	PAD_NC(GPP_H23, NONE),
	/* GPD11 : LANPHYC ==> WWAN_CONFIG1 */
	PAD_NC(GPD11, NONE),
};

static void enable_i2s(void)
{
	gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
	gpio_configure_pads(i2s0_enable_pads, ARRAY_SIZE(i2s0_enable_pads));
	gpio_configure_pads(i2s2_enable_pads, ARRAY_SIZE(i2s2_enable_pads));
	gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
}

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(i2s0_disable_pads, ARRAY_SIZE(i2s0_disable_pads));
		gpio_configure_pads(i2s2_disable_pads, ARRAY_SIZE(i2s2_disable_pads));
		gpio_configure_pads(dmic_disable_pads, ARRAY_SIZE(dmic_disable_pads));
		gpio_configure_pads(sndw_disable_pads, ARRAY_SIZE(sndw_disable_pads));
		return;
	}

	if (fw_config_probe(FW_CONFIG(AUDIO, MAX98373_ALC5682_SNDW))) {
		printk(BIOS_INFO, "Configure audio over SoundWire with MAX98373 ALC5682.\n");
		gpio_configure_pads(dmic_enable_pads, ARRAY_SIZE(dmic_enable_pads));
		gpio_configure_pads(sndw_enable_pads, ARRAY_SIZE(sndw_enable_pads));
		printk(BIOS_INFO, "BT offload enabled\n");
		gpio_configure_pads(i2s0_enable_pads, ARRAY_SIZE(i2s0_enable_pads));
		gpio_configure_pads(i2s2_disable_pads, ARRAY_SIZE(i2s2_disable_pads));
		gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));
	} else if (!fw_config_probe(FW_CONFIG(AUDIO, MAX98360_ALC5682I_I2S))) {
		printk(BIOS_INFO, "BT offload disabled\n");
		gpio_configure_pads(i2s0_disable_pads, ARRAY_SIZE(i2s0_disable_pads));
		gpio_configure_pads(i2s2_disable_pads, ARRAY_SIZE(i2s2_disable_pads));
		gpio_configure_pads(bt_i2s_disable_pads, ARRAY_SIZE(bt_i2s_disable_pads));
	}

	if (fw_config_probe(FW_CONFIG(AUDIO, MAX98357_ALC5682I_I2S))) {
		printk(BIOS_INFO, "Configure audio over I2S with MAX98357 ALC5682I.\n");
		enable_i2s();
	}

	if (fw_config_probe(FW_CONFIG(AUDIO, ALC1019_NAU88L25B_I2S))) {
		printk(BIOS_INFO, "Configure audio over I2S with ALC1019 NAU88L25B.\n");
		enable_i2s();
	}

	if (fw_config_probe(FW_CONFIG(AUDIO, MAX98360_ALC5682I_I2S)) ||
			fw_config_probe(FW_CONFIG(AUDIO, NAU8318_NAU88L25B_I2S))) {
		printk(BIOS_INFO, "Configure audio over I2S with MAX98360 ALC5682I.\n");
		gpio_configure_pads(max98360_enable_pads, ARRAY_SIZE(max98360_enable_pads));
		printk(BIOS_INFO, "BT offload enabled\n");
		gpio_configure_pads(i2s0_enable_pads, ARRAY_SIZE(i2s0_enable_pads));
		gpio_configure_pads(bt_i2s_enable_pads, ARRAY_SIZE(bt_i2s_enable_pads));

		if (fw_config_probe(FW_CONFIG(AUDIO, NAU8318_NAU88L25B_I2S)))
			gpio_configure_pads(nau8318_enable_pads, ARRAY_SIZE(nau8318_enable_pads));
	}

	if (fw_config_probe(FW_CONFIG(DB_LTE, LTE_ABSENT))) {
		printk(BIOS_INFO, "Disable LTE related GPIO pins.\n");
		gpio_configure_pads(lte_disable_pads, ARRAY_SIZE(lte_disable_pads));
	}
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);