src/mainboard/siemens/mc_ehl/variants/mc_ehl4/gpio.c

/* SPDX-License-Identifier: GPL-2.0-only */

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

/* Pad configuration in ramstage */
static const struct pad_config gpio_table[] = {
	/* Community 0 - GpioGroup GPP_B */
	PAD_CFG_NF(GPP_B2, NONE, PLTRST, NF1),		/* PMC_VRALERT_N */
	PAD_CFG_NF(GPP_B3, NONE, PLTRST, NF4),		/* ESPI_ALERT0_N */
	PAD_NC(GPP_B4, NONE),				/* Not connected */
	PAD_NC(GPP_B9, NONE),				/* Not connected */
	PAD_NC(GPP_B10, NONE),				/* Not connected */
	PAD_CFG_NF(GPP_B11, NONE, PLTRST, NF1),		/* PMC_ALERT_N */
	PAD_NC(GPP_B14, NONE),				/* Not connected */
	PAD_NC(GPP_B15, NONE),				/* Not connected */
	PAD_NC(GPP_B18, NONE),				/* Not connected */
	PAD_NC(GPP_B19, NONE),				/* Not connected */
	PAD_NC(GPP_B23, NONE),				/* Not connected */

	/* Community 0 - GpioGroup GPP_T */
	PAD_CFG_NF(GPP_T12, NONE, DEEP, NF2),		/* SIO_UART0_RXD */
	PAD_CFG_NF(GPP_T13, NONE, DEEP, NF2),		/* SIO_UART0_TXD */

	/* Community 0 - GpioGroup GPP_G */
	PAD_NC(GPP_G8, NONE),				/* Not connected */
	PAD_NC(GPP_G9, NONE),				/* Not connected */
	PAD_NC(GPP_G12, NONE),				/* Not connected */
	PAD_CFG_NF(GPP_G15, NONE, DEEP, NF1),		/* ESPI_IO_0 */
	PAD_CFG_NF(GPP_G16, NONE, DEEP, NF1),		/* ESPI_IO_1 */
	PAD_CFG_NF(GPP_G17, NONE, DEEP, NF1),		/* ESPI_IO_2 */
	PAD_CFG_NF(GPP_G18, NONE, DEEP, NF1),		/* ESPI_IO_3 */
	PAD_CFG_NF(GPP_G20, NONE, DEEP, NF1),		/* ESPI_CSO_N */
	PAD_CFG_NF(GPP_G21, NONE, DEEP, NF1),		/* ESPI_CLK */
	PAD_CFG_NF(GPP_G22, NONE, DEEP, NF1),		/* ESPI_RST0_N */

	/* Community 1 - GpioGroup GPP_V */
	PAD_CFG_NF(GPP_V0, UP_20K, DEEP, NF1),		/* EMMC_CMD */
	PAD_CFG_NF(GPP_V1, UP_20K, DEEP, NF1),		/* EMMC_DATA0 */
	PAD_CFG_NF(GPP_V2, UP_20K, DEEP, NF1),		/* EMMC_DATA1 */
	PAD_CFG_NF(GPP_V3, UP_20K, DEEP, NF1),		/* EMMC_DATA2 */
	PAD_CFG_NF(GPP_V4, UP_20K, DEEP, NF1),		/* EMMC_DATA3 */
	PAD_CFG_NF(GPP_V5, UP_20K, DEEP, NF1),		/* EMMC_DATA4 */
	PAD_CFG_NF(GPP_V6, UP_20K, DEEP, NF1),		/* EMMC_DATA5 */
	PAD_CFG_NF(GPP_V7, UP_20K, DEEP, NF1),		/* EMMC_DATA6 */
	PAD_CFG_NF(GPP_V8, UP_20K, DEEP, NF1),		/* EMMC_DATA7 */
	PAD_CFG_NF(GPP_V9, DN_20K, DEEP, NF1),		/* EMMC_RCLK */
	PAD_CFG_NF(GPP_V10, DN_20K, DEEP, NF1),		/* EMMC_CLK */
	PAD_CFG_NF(GPP_V11, NONE, DEEP, NF1),		/* EMMC_RESET */

	/* Community 1 - GpioGroup GPP_H */
	PAD_CFG_NF(GPP_H8, UP_20K, DEEP, NF1),		/* SIO_I2C4_SDA */
	PAD_CFG_NF(GPP_H9, UP_20K, DEEP, NF1),		/* SIO_I2C4_SCL */

	/* Community 1 - GpioGroup GPP_D */
	PAD_CFG_GPO(GPP_D16, 0, DEEP),			/* EMMC_PWR_EN_N */

	/* Community 1 - GpioGroup GPP_U */
	PAD_NC(GPP_U12, NONE),				/* Not connected */
	PAD_NC(GPP_U13, NONE),				/* Not connected */
	PAD_NC(GPP_U16, NONE),				/* Not connected */
	PAD_NC(GPP_U17, NONE),				/* Not connected */
	PAD_NC(GPP_U18, NONE),				/* Not connected */

	/* Community 2 - GpioGroup DSW */
	PAD_CFG_NF(GPD4, NONE, PLTRST, NF1),		/* SLP_S3 */
	PAD_CFG_NF(GPD5, NONE, PLTRST, NF1),		/* SLP_S4 */
	PAD_NC(GPD7, NONE),				/* Not connected */
	PAD_NC(GPD9, NONE),				/* Not connected */
	PAD_CFG_NF(GPD10, NONE, PLTRST, NF1),		/* SLP_S5 */
	PAD_NC(GPD11, NONE),				/* Not connected */

	/* Community 3 - GpioGroup GPP_S */
	PAD_NC(GPP_S0, NONE),				/* Not connected */
	PAD_NC(GPP_S1, NONE),				/* Not connected */

	/* Community 4 - GpioGroup GPP_C */
	PAD_NC(GPP_C5, NONE),				/* Not connected */
	PAD_NC(GPP_C8, NONE),				/* Not connected */
	PAD_CFG_NF(GPP_C12, NONE, DEEP, NF4),		/* SIO_UART1_RXD */
	PAD_CFG_NF(GPP_C13, NONE, DEEP, NF4),		/* SIO_UART1_TXD */
	PAD_CFG_NF(GPP_C18, NONE, DEEP, NF4),		/* SIO_I2C1_SDA */
	PAD_CFG_NF(GPP_C19, NONE, DEEP, NF4),		/* SIO_I2C1_SCL */

	/* Community 4 - GpioGroup GPP_F */
	PAD_NC(GPP_F0, NONE),				/* Not connected */
	PAD_NC(GPP_F1, NONE),				/* Not connected */
	PAD_NC(GPP_F2, NONE),				/* Not connected */
	PAD_NC(GPP_F3, NONE),				/* Not connected */
	PAD_NC(GPP_F4, NONE),				/* Not connected */
	PAD_NC(GPP_F5, NONE),				/* Not connected */
	PAD_NC(GPP_F7, NONE),				/* Not connected */
	PAD_NC(GPP_F8, NONE),				/* Not connected */
	PAD_NC(GPP_F10, NONE),				/* Not connected */
	PAD_NC(GPP_F11, NONE),				/* Not connected */
	PAD_NC(GPP_F12, NONE),				/* Not connected */
	PAD_NC(GPP_F13, NONE),				/* Not connected */
	PAD_NC(GPP_F14, NONE),				/* Not connected */
	PAD_NC(GPP_F15, NONE),				/* Not connected */
	PAD_NC(GPP_F16, NONE),				/* Not connected */
	PAD_NC(GPP_F17, NONE),				/* Not connected */
	PAD_NC(GPP_F20, NONE),				/* Not connected */
	PAD_NC(GPP_F21, NONE),				/* Not connected */

	/* Community 4 - GpioGroup GPP_E */
	PAD_CFG_NF(GPP_E0, NONE, DEEP, NF1),		/* SATA_LED_N */
	PAD_NC(GPP_E6, NONE),				/* Not connected */
	PAD_NC(GPP_E15, NONE),				/* Not connected */
	PAD_NC(GPP_E16, NONE),				/* Not connected */
	PAD_NC(GPP_E18, NONE),				/* Not connected */
	PAD_NC(GPP_E19, NONE),				/* Not connected */
	PAD_NC(GPP_E23, NONE),				/* Not connected */

	/* Community 5 - GpioGroup GPP_R */
	PAD_NC(GPP_R1, NONE),				/* Not connected */
	PAD_NC(GPP_R3, NONE),				/* Not connected */
};

/* Early pad configuration in bootblock */
static const struct pad_config early_gpio_table[] = {
	PAD_CFG_GPI(GPP_B5, NONE, DEEP),		/* DRAM population */
	PAD_CFG_NF(GPP_C0, NONE, DEEP, NF1),		/* SMB_CLK */
	PAD_CFG_NF(GPP_C1, NONE, DEEP, NF1),		/* SMB_DATA */
	PAD_CFG_NF(GPP_C2, NONE, DEEP, NF2),		/* SMB_ALERT_N */
	PAD_CFG_NF(GPP_C20, NONE, DEEP, NF4),		/* SIO_UART2_RXD */
	PAD_CFG_NF(GPP_C21, NONE, DEEP, NF4),		/* SIO_UART2_TXD */
};

const struct pad_config *variant_gpio_table(size_t *num)
{
	*num = ARRAY_SIZE(gpio_table);
	return gpio_table;
}

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