gpio.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <gpio.h>
#include <soc/gpio.h>
 
/* GPIOs needed prior to ramstage. */
static const struct pad_config early_gpio_table[] = {
        PAD_CFG_GPI(GPIO_190, NONE, DEEP), /* PCH_WP_OD */
        /* GSPI0_INT */
        PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, LEVEL, INVERT, TxDRxE,
                DISPUPD), /* H1_PCH_INT_ODL */
        /* GSPI0_CLK */
        PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CLK_R */
        /* GSPI0_CS# */
        PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CS_L_R */
        /* GSPI0_MISO */
        PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MISO */
        /* GSPI0_MOSI */
        PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MOSI_R */
 
        /* Enable power to wifi early in bootblock and de-assert PERST#. */
        PAD_CFG_GPO(GPIO_178, 1, DEEP), /* EN_PP3300_WLAN */
        PAD_CFG_GPO(GPIO_164, 0, DEEP), /* WLAN_PE_RST */
 
        /*
         * ESPI_IO1 acts as ALERT# (which is open-drain) and requires a weak
         * pull-up for proper operation. Since there is no external pull present
         * on this platform, configure an internal weak pull-up.
         */
        PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
                                    ENPU), /* ESPI_IO1 */
};
 
const struct pad_config *variant_early_gpio_table(size_t *num)
{
        *num = ARRAY_SIZE(early_gpio_table);
        return early_gpio_table;
}