src/mainboard/google/volteer/variants/elemi/gpio.c

/* SPDX-License-Identifier: GPL-2.0-or-later */

#include <acpi/acpi.h>
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <commonlib/helpers.h>

/* Pad configuration in ramstage */
static const struct pad_config override_gpio_table[] = {
	/* A7  : I2S2_SCLK ==> EN_PP3300_TRACKPAD */
	PAD_CFG_GPO(GPP_A7, 1, DEEP),
	/* A8  : I2S2_SFRM ==> EN_PP3300_TOUCHSCREEN */
	PAD_CFG_GPO(GPP_A8, 1, DEEP),
	/* A10 : I2S2_RXD ==> EN_SPKR_PA */
	PAD_CFG_GPO(GPP_A10, 1, DEEP),
	/* A13 : PMC_I2C_SCL ==> BT_DISABLE_L */
	PAD_CFG_GPO(GPP_A13, 1, DEEP),
	/* A16 : USB_OC3# ==> USB_C0_OC_ODL */
	PAD_CFG_NF(GPP_A16, NONE, DEEP, NF1),
	/* A18 : DDSP_HPDB ==> HDMI_HPD */
	PAD_CFG_NF(GPP_A18, NONE, DEEP, NF1),
	/* A22 : DDPC_CTRLDATA ==> EN_HDMI_PWR */
	PAD_CFG_GPO(GPP_A22, 1, DEEP),
	/* A23 : I2S1_SCLK ==> I2S1_SPKR_SCLK */
	PAD_CFG_NF(GPP_A23, NONE, DEEP, NF1),

	/* B2  : VRALERT# ==> EN_PP3300_SSD */
	PAD_CFG_GPO(GPP_B2, 1, PLTRST),
	/* B3  : CPU_GP2 ==> PEN_DET_ODL */
	PAD_CFG_GPI(GPP_B3, NONE, DEEP),
	/* B4  : CPU_GP3==> EN_PP3300_EMMC */
	PAD_CFG_GPO(GPP_B4, 1, DEEP),
	/* B9  : I2C5_SDA ==> PCH_I2C5_TRACKPAD_SDA */
	PAD_CFG_NF(GPP_B9, NONE, DEEP, NF1),
	/* B10 : I2C5_SCL ==> PCH_I2C5_TRACKPAD_SCL */
	PAD_CFG_NF(GPP_B10, NONE, DEEP, NF1),
	/* B19 : GSPI1_CS0# ==> PCH_GSPI1_FPMCU_CS_L */
	PAD_CFG_NF(GPP_B19, NONE, DEEP, NF1),
	/* B20 : GSPI1_CLK ==> PCH_GSPI1_FPMCU_CLK */
	PAD_CFG_NF(GPP_B20, NONE, DEEP, NF1),
	/* B21 : GSPI1_MISO ==> PCH_GSPI1_FPMCU_MISO */
	PAD_CFG_NF(GPP_B21, NONE, DEEP, NF1),

	/* C0  : SMBCLK ==> EN_PP3300_WLAN */
	PAD_CFG_GPO(GPP_C0, 1, DEEP),
	/* C2  : SMBALERT# ==> GPP_C2_STRAP */
	PAD_NC(GPP_C2, DN_20K),
	/* C3  : EMMC_PE_WAKE_ODL*/
	PAD_CFG_GPI(GPP_C3, NONE, DEEP),
	/* C4  : EMMC_PERST_L*/
	PAD_CFG_GPO(GPP_C4, 1, DEEP),

	/* C5  : SML0ALERT# ==> GPP_C5_BOOT_STRAP_0 */
	PAD_NC(GPP_C5, DN_20K),
	/* C10 : UART0_RTS# ==> USI_RST_L */
	PAD_CFG_GPO(GPP_C10, 1, DEEP),
	/* C16 : I2C0_SDA ==> PCH_I2C0_1V8_AUDIO_SDA */
	PAD_CFG_NF(GPP_C16, NONE, DEEP, NF1),
	/* C17 : I2C0_SCL ==> PCH_I2C0_1V8_AUDIO_SCL */
	PAD_CFG_NF(GPP_C17, NONE, DEEP, NF1),
	/* C18 : I2C1_SDA ==> PCH_I2C1_TOUCH_USI_SDA */
	PAD_CFG_NF(GPP_C18, NONE, DEEP, NF1),
	/* C19 : I2C1_SCL ==> PCH_I2C1_TOUCH_USI_SCL */
	PAD_CFG_NF(GPP_C19, NONE, DEEP, NF1),
	/* C20 : UART2_RXD ==> FPMCU_INT_L */
	PAD_CFG_GPI_INT(GPP_C20, NONE, PLTRST, LEVEL),
	/* C22 : UART2_RTS# ==> PCH_FPMCU_BOOT0 */
	PAD_CFG_GPO(GPP_C22, 0, DEEP),

	/* D6  : SRCCLKREQ1# ==> WLAN_CLKREQ_ODL */
	PAD_CFG_NF(GPP_D6, NONE, DEEP, NF1),
	/* D8  : SRCCLKREQ3# ==> SD_CLKREQ_ODL */
	PAD_CFG_NF(GPP_D8, NONE, DEEP, NF1),
	/* D12 : ISH_SPI_MOSI ==> PCH_GSPI2_CVF_MOSI_STRAP */
	PAD_CFG_NF(GPP_D12, DN_20K, DEEP, NF7),
	/* D13 : ISH_UART0_RXD ==> UART_ISH_RX_DEBUG_TX */
	PAD_CFG_NF(GPP_D13, NONE, DEEP, NF1),
	/* D14 : ISH_UART0_TXD ==> UART_ISH_TX_DEBUG_RX */
	PAD_CFG_NF(GPP_D14, NONE, DEEP, NF1),
	/* D16 : ISH_UART0_CTS# ==> EN_PP3300_SD */
	PAD_CFG_GPO(GPP_D16, 1, DEEP),
	/* D17 : ISH_GP4 ==> EN_FCAM_PWR */
	PAD_CFG_GPO(GPP_D17, 1, DEEP),

	/* E1  : SPI1_IO2 ==> PEN_DET_ODL */
	PAD_CFG_GPI_SCI_LOW(GPP_E1, NONE, DEEP, EDGE_SINGLE),
	/* E2  : SPI1_IO3 ==> WLAN_PCIE_WAKE_ODL */
	PAD_CFG_GPI(GPP_E2, NONE, DEEP),
	/* E3  : CPU_GP0 ==> USI_REPORT_EN */
	PAD_CFG_GPO(GPP_E3, 0, DEEP),
	/* E4  : SATA_DEVSLP0 ==> M2_SSD_PE_WAKE_ODL */
	PAD_CFG_GPI(GPP_E4, NONE, DEEP),
	/* E6  : THC0_SPI1_RST# ==> GPP_E6_STRAP */
	PAD_CFG_GPI(GPP_E6, NONE, DEEP),
	/* E7  : CPU_GP1 ==> USI_INT */
	PAD_CFG_GPI_APIC(GPP_E7, NONE, PLTRST, LEVEL, NONE),
	/* E8  : SPI1_CS1# ==> SLP_S0IX */
	PAD_CFG_GPO(GPP_E8, 0, DEEP),
	/* E11 : SPI1_CLK ==> SD_PE_WAKE_ODL */
	PAD_CFG_GPI(GPP_E11, NONE, DEEP),
	/* E15 : ISH_GP6 ==> TRACKPAD_INT_ODL */
	PAD_CFG_GPI_IRQ_WAKE(GPP_E15, NONE, DEEP, LEVEL, INVERT),
	/* E18 : DDP1_CTRLCLK ==> NC */
	PAD_NC(GPP_E18, NONE),
	/* E20 : DDP2_CTRLCLK ==> NC */
	PAD_NC(GPP_E20, NONE),
	/* E21 : DDP2_CTRLDATA ==> NC */
	PAD_NC(GPP_E21, NONE),

	/* F7  : GPPF7_STRAP ==> GPP_F7_STRAP */
	PAD_NC(GPP_F7, DN_20K),
	/* F8  : I2S_MCLK2_INOUT ==> HP_INT_L */
	PAD_CFG_GPI_INT(GPP_F8, NONE, PLTRST, EDGE_BOTH),
	/* F11 : THC1_SPI2_CLK ==> NC */
	PAD_NC(GPP_F11, NONE),
	/* F12 : GSXDOUT ==> NC */
	PAD_NC(GPP_F12, NONE),

	/* F13 : GSXDOUT ==> WiFi_DISABLE_L */
	PAD_CFG_GPO(GPP_F13, 1, DEEP),
	/* F19 : SRCCLKREQ6# ==> WLAN_INT_L */
	PAD_CFG_GPI_SCI_LOW(GPP_F19, NONE, DEEP, EDGE_SINGLE),

	/* H0  : GPPH0_BOOT_STRAP1 */
	PAD_NC(GPP_H0, DN_20K),
	/* H1  : GPPH1_BOOT_STRAP2 */
	PAD_NC(GPP_H1, DN_20K),
	/* H2  : GPPH2_BOOT_STRAP3 */
	PAD_NC(GPP_H2, DN_20K),
	/* H3  : SX_EXIT_HOLDOFF# ==> SD_PERST_L */
	PAD_CFG_GPO(GPP_H3, 1, DEEP),
	/* H10 : SRCCLKREQ4#  ==> WLAN_PERST_L*/
	PAD_CFG_GPO(GPP_H10, 1, DEEP),
	/* H11 : SRCCLKREQ5# ==> EMMC_CLKREQ_ODL*/
	PAD_CFG_NF(GPP_H11, NONE, DEEP, NF1),
	/* H16 : DDPB_CTRLCLK ==> DDIB_HDMI_CTRLCLK */
	PAD_CFG_NF(GPP_H16, NONE, DEEP, NF1),
	/* H17 : DDPB_CTRLDATA ==> DDPB_HDMI_CTRLDATA */
	PAD_CFG_NF(GPP_H17, NONE, DEEP, NF1),
	/* H19 : TIME_SYNC0 ==> USER_PRES_FP_ODL */
	PAD_CFG_GPI(GPP_H19, NONE, DEEP),

	/* R0 : HDA_BCLK ==> I2S0_HP_SCLK */
	PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2),
	/* R1 : HDA_SYNC ==> I2S0_HP_SFRM */
	PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2),
	/* R2 : HDA_SDO ==> I2S0_PCH_TX_HP_RX_STRAP */
	PAD_CFG_NF(GPP_R2, DN_20K, DEEP, NF2),
	/* R3 : HDA_SDIO ==> I2S0_PCH_RX_HP_TX */
	PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2),
	/* R5 : HDA_SDI1 ==> I2S1_PCH_RX_SPKR_TX */
	PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2),
	/* R6 : I2S1_TXD ==> I2S1_PCH_RX_SPKR_RX */
	PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2),
	/* R7 : I2S1_SFRM ==> I2S1_SPKR_SFRM */
	PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2),

	/* S0 : SNDW0_CLK ==> SNDW0_HP_CLK */
	PAD_CFG_NF(GPP_S0, NONE, DEEP, NF1),
	/* S1 : SNDW0_DATA ==> SNDW0_HP_DATA */
	PAD_CFG_NF(GPP_S1, NONE, DEEP, NF1),
	/* S6 : SNDW3_CLK ==> DMIC_CLK0 */
	PAD_CFG_NF(GPP_S6, NONE, DEEP, NF2),
	/* S7 : SNDW3_DATA ==> DMIC_DATA0 */
	PAD_CFG_NF(GPP_S7, NONE, DEEP, NF2),

	/* GPD9: SLP_WLAN# ==> SLP_WLAN_L */
	PAD_CFG_NF(GPD9, NONE, DEEP, NF1),

};

/* Early pad configuration in bootblock */
static const struct pad_config early_gpio_table[] = {
	/* C8 : UART0 RX */
	PAD_CFG_NF(GPP_C8, NONE, DEEP, NF1),
	/* C9 : UART0 TX */
	PAD_CFG_NF(GPP_C9, NONE, DEEP, NF1),

	/* A12 : SATAXPCIE1 ==> M2_SSD_PEDET */
	PAD_CFG_NF(GPP_A12, NONE, DEEP, NF1),
	/* A13 : PMC_I2C_SCL ==> BT_DISABLE_L */
	/* assert reset on reboot */
	PAD_CFG_GPO(GPP_A13, 0, DEEP),
	/* A17 : DDSP_HPDC ==> MEM_CH_SEL */
	PAD_CFG_GPI(GPP_A17, NONE, DEEP),
	/* B2  : VRALERT# ==> EN_PP3300_SSD */
	PAD_CFG_GPO(GPP_B2, 1, PLTRST),
	/* B4  : CPU_GP3==> EN_PP3300_EMMC */
	PAD_CFG_GPO(GPP_B4, 1, DEEP),


	/* B11 : PMCALERT# ==> PCH_WP_OD */
	PAD_CFG_GPI_GPIO_DRIVER(GPP_B11, NONE, DEEP),
	/* B15 : GSPI0_CS0# ==> PCH_GSPI0_H1_TPM_CS_L */
	PAD_CFG_NF(GPP_B15, NONE, DEEP, NF1),
	/* B16 : GSPI0_CLK ==> PCH_GSPI0_H1_TPM_CLK */
	PAD_CFG_NF(GPP_B16, NONE, DEEP, NF1),
	/* B17 : GSPI0_MISO ==> PCH_GSPIO_H1_TPM_MISO */
	PAD_CFG_NF(GPP_B17, NONE, DEEP, NF1),
	/* B18 : GSPI0_MOSI ==> PCH_GSPI0_H1_TPM_MOSI_STRAP */
	PAD_CFG_NF(GPP_B18, DN_20K, DEEP, NF1),

	/* C0  : SMBCLK ==> EN_PP3300_WLAN */
	PAD_CFG_GPO(GPP_C0, 1, DEEP),
	/* C21 : UART2_TXD ==> H1_PCH_INT_ODL */
	PAD_CFG_GPI_APIC(GPP_C21, NONE, PLTRST, LEVEL, INVERT),
	/* C22 : UART2_RTS# ==> PCH_FPMCU_BOOT0 */
	PAD_CFG_GPO(GPP_C22, 0, DEEP),

	/* D16 : ISH_UART0_CTS# ==> EN_PP3300_SD */
	PAD_CFG_GPO(GPP_D16, 1, DEEP),

	/* H10 : SRCCLKREQ5# ==> WLAN_PERST_L */
	PAD_CFG_GPO(GPP_H10, 1, DEEP),
};

const struct pad_config *variant_override_gpio_table(size_t *num)
{
	*num = ARRAY_SIZE(override_gpio_table);
	return override_gpio_table;
}

const struct pad_config *variant_early_gpio_table(size_t *num)
{
	*num = ARRAY_SIZE(early_gpio_table);
	return early_gpio_table;
}

/* GPIO settings before entering S5 */
static const struct pad_config s5_sleep_gpio_table[] = {
	PAD_CFG_GPO(GPP_C23, 0, DEEP), /* FPMCU_RST_ODL */
	PAD_CFG_GPO(GPP_A21, 0, DEEP), /* EN_FP_PWR */
};

const struct pad_config *variant_sleep_gpio_table(u8 slp_typ, size_t *num)
{
	if (slp_typ == ACPI_S5) {
		*num = ARRAY_SIZE(s5_sleep_gpio_table);
		return s5_sleep_gpio_table;
	}
	*num = 0;
	return NULL;
}

/* GPIOs needed to be set in romstage. */
static const struct pad_config romstage_gpio_table[] = {
	/* Enable touchscreen, hold in reset */
	/* A8  : I2S2_SFRM ==> EN_PP3300_TOUCHSCREEN */
	PAD_CFG_GPO(GPP_A8, 1, DEEP),
	/* C10 : UART0_RTS# ==> USI_RST_L */
	PAD_CFG_GPO(GPP_C10, 0, DEEP),
};

const struct pad_config *variant_romstage_gpio_table(size_t *num)
{
	*num = ARRAY_SIZE(romstage_gpio_table);
	return romstage_gpio_table;
}