gpio.c

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/* SPDX-License-Identifier: GPL-2.0-or-later */
 
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <bootstate.h>
#include <fw_config.h>
 
/* Pad configuration in ramstage */
static const struct pad_config gpio_table[] = {
        /* A10 : WWAN_EN */
        PAD_CFG_GPO(GPP_A10, 1, PWROK),
        /* A11 : TOUCH_RPT_EN ==> NC */
        PAD_NC(GPP_A11, NONE),
 
        /* B7  : PCIE_CLKREQ2_N ==> WWAN_SAR_DETECT_ODL*/
        PAD_CFG_GPO(GPP_B7, 1, DEEP),
        /* B8  : WLAN_CLKREQ_ODL ==> NC */
        PAD_NC(GPP_B8, NONE),
 
        /* D0  : WWAN_HOST_WAKE ==> WWAN_WDISABLE_L */
        PAD_CFG_GPO(GPP_D0, 1, DEEP),
        /* D1  : WLAN_PERST_L ==> NC */
        PAD_NC(GPP_D1, NONE),
        /* D3  : WLAN_PCIE_WAKE_ODL ==> NC */
        PAD_NC(GPP_D3, NONE),
        /* D5  : TOUCHSCREEN_RESET */
        PAD_CFG_GPO(GPP_D5, 1, DEEP),
        /* D7  : EMR_INT_ODL */
        PAD_CFG_GPI_APIC(GPP_D7, NONE, PLTRST, LEVEL, INVERT),
        /* D13 : EN_PP3300_CAMERA */
        PAD_CFG_GPO(GPP_D13, 0, PLTRST),
        /* D15 : EN_PP2800_CAMERA */
        PAD_CFG_GPO(GPP_D15, 0, PLTRST),
        /* D19 : WWAN_WLAN_COEX1 ==> NC */
        PAD_NC(GPP_D19, NONE),
        /* D20 : WWAN_WLAN_COEX2 ==> NC */
        PAD_NC(GPP_D20, NONE),
        /* D21 : WWAN_WLAN_COEX3 ==> NC */
        PAD_NC(GPP_D21, NONE),
        /* D22 : AP_I2C_SUB_SDA*/
        PAD_CFG_NF(GPP_D22, NONE, DEEP, NF1),
        /* D23 : AP_I2C_SUB_SCL */
        PAD_CFG_NF(GPP_D23, NONE, DEEP, NF1),
 
        /* E0 : CLK_24M_UCAM ==> NC */
        PAD_NC(GPP_E0, NONE),
        /* E1 : EMR_RESET_L */
        PAD_CFG_GPO(GPP_E1, 0, DEEP),
        /* E10 : LTE_SAR_SENSOR_INT */
        PAD_CFG_GPI_APIC(GPP_E10, NONE, PLTRST, LEVEL, NONE),
        /* E13 : DDI0_DDC_SCL */
        PAD_CFG_NF(GPP_E13, NONE, DEEP, NF1),
        /* E14 : DDI0_DDC_SDA */
        PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),
 
        /* H17 : WWAN_RST_L */
        PAD_CFG_GPO(GPP_H17, 0, PLTRST),
};
 
static const struct pad_config lte_disable_pads[] = {
        PAD_NC(GPP_A10, NONE),
        PAD_NC(GPP_D0, NONE),
        PAD_NC(GPP_H17, NONE),
};
 
const struct pad_config *variant_override_gpio_table(size_t *num)
{
        *num = ARRAY_SIZE(gpio_table);
        return gpio_table;
}
 
static void fw_config_handle(void *unused)
{
        if (!fw_config_probe(FW_CONFIG(DB_PORTS, DB_PORTS_1C_1A_LTE)))
                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);