gpio.c

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <variants.h>
 
/*
 * All definitions are taken from a comparison of the output of "inteltool -a"
 * using the stock BIOS and with coreboot.
 */
 
/* Early pad configuration in bootblock */
const struct pad_config early_gpio_table[] = {
        /* C20:  UART2_RXD                      */
        PAD_CFG_NF(GPP_C20, NONE, DEEP, NF1),
        /* C21:  UART2_TXD                      */
        PAD_CFG_NF(GPP_C21, NONE, DEEP, NF1),
        /* E22: BRD_ID0                         */
        PAD_CFG_GPO(GPP_E22, 1, PLTRST),
        /* E23: BRD_ID1                         */
        PAD_CFG_GPO(GPP_E23, 1, PLTRST),
        /* H6:  BRD_ID2                         */
        PAD_CFG_GPI(GPP_H6, NONE, PLTRST),
        /* H7:  BRD_ID3                         */
        PAD_CFG_GPI(GPP_H7, NONE, PLTRST),
};
 
const struct pad_config *variant_early_gpio_table(size_t *num)
{
        *num = ARRAY_SIZE(early_gpio_table);
        return early_gpio_table;
}
 
/* Pad configuration in ramstage. */
const struct pad_config gpio_table[] = {
        /* REFERENCE:   EP PER SCHEMATIC        */
 
        /* GPD0:        PCH_BATLOW#             */
        PAD_CFG_NF(GPD0, NONE, DEEP, NF1),
        /* GPD1:        AC_PRESENT              */
        PAD_CFG_NF(GPD1, NONE, DEEP, NF1),
        /* GPD2:        LAN_WAKE#               */
        PAD_NC(GPD2, NONE),
        /* GPD3:        SIO_PWRBTN#             */
        PAD_CFG_NF(GPD3, UP_20K, DEEP, NF1),
        /* GPD4:        SIO_SLP_S3#             */
        PAD_CFG_NF(GPD4, NONE, DEEP, NF1),
        /* GPD5:        SIO_SLP_S4#             */
        PAD_CFG_NF(GPD5, NONE, DEEP, NF1),
        /* GPD6:        SIO_SLP_A#              */
        PAD_CFG_NF(GPD6, NONE, DEEP, NF1),
        /* GPD7:        PCH_TBT_PERST#          */
        PAD_CFG_GPO(GPD7, 0, PLTRST),
        /* GPD8:        SUSCLK                  */
        PAD_CFG_NF(GPD8, NONE, DEEP, NF1),
        /* GPD9:        SIO_SLP_WLAN#           */
        PAD_CFG_NF(GPD9, NONE, DEEP, NF1),
        /* GPD10:       SIO_SLP_S5#             */
        PAD_CFG_NF(GPD10, NONE, DEEP, NF1),
        /* GPD11:       PM_LANPHY_EN            */
        PAD_CFG_NF(GPD11, NONE, DEEP, NF1),
 
        /* A0:  KBRST_N                 */
        PAD_CFG_NF(GPP_A0, NONE, DEEP, NF1),
        /* A1:  LPC_AD0                         */
        PAD_CFG_NF(GPP_A1, NATIVE, DEEP, NF1),
        /* A2:  LPC_AD1                         */
        PAD_CFG_NF(GPP_A2, NATIVE, DEEP, NF1),
        /* A3:  LPC_AD2                         */
        PAD_CFG_NF(GPP_A3, NATIVE, DEEP, NF1),
        /* A4:  LPC_AD3                         */
        PAD_CFG_NF(GPP_A4, NATIVE, DEEP, NF1),
        /* A5:  LPC_FRAME_N                     */
        PAD_CFG_NF(GPP_A5, NONE, DEEP, NF1),
        /* A6:  LPC_SERIRQ                      */
        PAD_CFG_NF(GPP_A6, NONE, DEEP, NF1),
        /* A7:  Not Connected                   */
        PAD_NC(GPP_A7, NONE),
        /* A8:   GPPC_A8_CLKRUN_N               */
        PAD_CFG_NF(GPP_A8, NONE, DEEP, NF1),
        /* A9:   ESPI_CLK                       */
        PAD_CFG_NF(GPP_A9, DN_20K, DEEP, NF1),
        /* A10: Not Connected                   */
        PAD_NC(GPP_A10, NONE),
        /* A11: Not Connected                   */
        PAD_NC(GPP_A11, NONE),
        /* A12:  TABLET_MODE_CTRL               */
        PAD_NC(GPP_A12, NONE),
        /* A13:  SUSPWRDNACK                    */
        PAD_CFG_GPO(GPP_A13, 1, PLTRST),
        /* A14:  PM_SUS_STAT_N                  */
        PAD_CFG_NF(GPP_A14, NONE, DEEP, NF1),
        /* A15:  SPK_PD_N                       */
        PAD_CFG_GPO(GPP_A15, 1, PLTRST),
        /* A16: Not Connected                   */
        PAD_NC(GPP_A16, NONE),
        /* A17:  SAR_DPR_PCH                    */
        PAD_NC(GPP_A17, NONE),
        /* A18:  ACCEL1_INT1                    */
        PAD_NC(GPP_A18, UP_20K),
        /* A19:  ACCEL2_INT1                    */
        PAD_NC(GPP_A19, UP_20K),
        /* A20:  HUMAN_PRESENCE_INT_N           */
        PAD_NC(GPP_A20, UP_20K),
        /* A21:  HALL_SENSOR_INT                */
        PAD_NC(GPP_A21, UP_20K),
        /* A22:  SAR_NIRQ_PCH                   */
        PAD_NC(GPP_A22, UP_20K),
        /* A23:  INT_SHARED                     */
        PAD_NC(GPP_A23, UP_20K),
 
        /* B0:  Not Connected                   */
        PAD_NC(GPP_B0, NONE),
        /* B1:  Not Connected                   */
        PAD_NC(GPP_B1, NONE),
        /* B2:  Not Connected                   */
        PAD_NC(GPP_B2, NONE),
        /* B3:  CLICK_PAD_INT_R_N               */
        PAD_CFG_GPI_APIC_LOW(GPP_B3, NONE, PLTRST),
        /* B4:  BT_RF_KILL_N                    */
        PAD_CFG_GPO(GPP_B4, 1, DEEP),
        /* B5:   WLAN_CLKREQ#                   */
        PAD_CFG_NF(GPP_B5, NONE, DEEP, NF1),
        /* B6:   CLKREQ1_SSD_N                  */
        PAD_CFG_NF(GPP_B6, NONE, DEEP, NF1),
        /* B7:   LAN_CLKREQ#                    */
        PAD_CFG_NF(GPP_B7, NONE, DEEP, NF1),
        /* B8:  Not Connected                   */
        PAD_NC(GPP_B8, NONE),
        /* B9:  Not Connected                   */
        PAD_NC(GPP_B9, NONE),
        /* B10: Not Connected                   */
        PAD_NC(GPP_B10, NONE),
        /* B11:  EXT_PWR_GATE_N                 */
        PAD_CFG_GPO(GPP_B11, 1, PLTRST),
        /* B12:  PM_SLP_S0_N                    */
        PAD_CFG_NF(GPP_B12, NONE, DEEP, NF1),
        /* B13:  PLT_RST_N                      */
        PAD_CFG_NF(GPP_B13, NONE, DEEP, NF1),
        /* B14:  TCH_PNL_PWR_EN                 */
        PAD_CFG_GPO(GPP_B14, 1, PLTRST),
        /* B15: Not Connected                   */
        PAD_NC(GPP_B15, NONE),
        /* B16:  FPS_INT                        */
        PAD_CFG_GPI_APIC(GPP_B16, NONE, PLTRST, LEVEL, NONE),
        /* B17:  FPS_RST_N                      */
        PAD_CFG_GPO(GPP_B17, 1, PLTRST),
        /* B18:  AR_CIO_PWR_EN                  */
        PAD_CFG_GPO(GPP_B18, 0, DEEP),
        /* B19:  GSPI1_CS0_FPS_N                */
        PAD_NC(GPP_B19, NONE),
        /* B20:  GSPI1_CLK_FPS                  */
        PAD_NC(GPP_B20, NONE),
        /* B21:  GSPI1_MISO_FPS                 */
        PAD_NC(GPP_B21, NONE),
        /* B22:  GSPI1_MOSI_FPS                 */
        PAD_CFG_GPO(GPP_B22, 0, DEEP),
        /* B23:  EC_SLP_S0IX_N                  */
        PAD_NC(GPP_B23, NONE),
 
        /* C0:   SMB_CLK                        */
        PAD_CFG_NF(GPP_C0, NONE, DEEP, NF1),
        /* C1:   SMB_DATA                       */
        PAD_CFG_NF(GPP_C1, NONE, DEEP, NF1),
        /* C2:   WIFI_RF_KILL_N                 */
        PAD_CFG_GPO(GPP_C2, 1, DEEP),
        /* C3:  Not Connected                   */
        PAD_NC(GPP_C3, NONE),
        /* C4:  Not Connected                   */
        PAD_NC(GPP_C4, NONE),
        /* C5:   SML0ALERT                      */
        PAD_CFG_GPO(GPP_C5, 0, DEEP),
        /* C6:  Not Connected                   */
        PAD_NC(GPP_C6, NONE),
        /* C7:  Not Connected                   */
        PAD_NC(GPP_C7, NONE),
        /* C8:   CODEC_INT_N                    */
        PAD_CFG_GPI_APIC_LOW(GPP_C8, UP_20K, PLTRST),
        /* C9:  Not Connected                   */
        PAD_NC(GPP_C9, NONE),
        /* C10: Not Connected                   */
        PAD_NC(GPP_C10, NONE),
        /* C11: Not Connected                   */
        PAD_NC(GPP_C11, NONE),
        /* C12:  PCIE_NAND_RST_R_N              */
        PAD_CFG_GPO(GPP_C12, 1, PLTRST),
        /* C13:  M2_SSD_PWREN                   */
        PAD_NC(GPP_C13, NONE),
        /* C14:  TBT_WAKE_MUX_SEL_N             */
        PAD_NC(GPP_C14, NONE),
        /* C15:  TBT_RST_N                      */
        PAD_NC(GPP_C15, NONE),
        /* C16:  I2C0_SDA                       */
        PAD_CFG_NF(GPP_C16, NONE, DEEP, NF1),
        /* C17:  I2C0_SCL                       */
        PAD_CFG_NF(GPP_C17, NONE, DEEP, NF1),
        /* C18:  TOUCH_I2C_SDA                  */
        PAD_NC(GPP_C18, NONE),
        /* C19:  TOUCH_I2C_SDL                  */
        PAD_NC(GPP_C19, NONE),
        /* C22:  AR1_USB_PWR_EN                 */
        PAD_NC(GPP_C22, NONE),
        /* C23: Not Connected                   */
        PAD_NC(GPP_C23, NONE),
 
        /* D0:   TPM_IRQ                        */
        PAD_NC(GPP_D0, NONE),
        /* D1:  Not Connected                   */
        PAD_NC(GPP_D1, NONE),
        /* D2:  Not Connected                   */
        PAD_NC(GPP_D2, NONE),
        /* D3:  Not Connected                   */
        PAD_NC(GPP_D3, NONE),
        /* D4:  Not Connected                   */
        PAD_NC(GPP_D4, NONE),
        /* D5:  Not Connected                   */
        PAD_NC(GPP_D5, NONE),
        /* D6:  Not Connected                   */
        PAD_NC(GPP_D6, NONE),
        /* D7:   ISH_I2C1_SDA                   */
        PAD_NC(GPP_D7, NONE),
        /* D8:   ISH_I2C1_SDL                   */
        PAD_NC(GPP_D8, NONE),
        /* D9:   TCH_PNL2_RST_R_N               */
        PAD_CFG_GPO(GPP_D9, 1, PLTRST),
        /* D10:  TCH_PNL2_INT_R_N               */
        PAD_NC(GPP_D10, NATIVE),
        /* D11: Not Connected                   */
        PAD_NC(GPP_D11, NATIVE),
        /* D12:  GPPC_D_12                      */
        PAD_CFG_GPO(GPP_D12, 0, DEEP),
        /* D13:  WWAN_FCP_OFF_N                 */
        PAD_NC(GPP_D13, NONE),
        /* D14:  TCH_PNL1_RST_N                 */
        PAD_CFG_GPO(GPP_D14, 1, PLTRST),
        /* D15: Not Connected                   */
        PAD_NC(GPP_D15, NONE),
        /* D16:  GPIO_2_EC                      */
        PAD_CFG_GPO(GPP_D16, 0, PWROK),
        /* D17:  DMIC_CLK1_SNDW3_CLK            */
        PAD_CFG_NF(GPP_D17, NONE, DEEP, NF1),
        /* D18:  DMIC_DATA1_SNDW3_DATA          */
        PAD_CFG_NF(GPP_D18, NONE, DEEP, NF1),
        /* D19:  DMIC_CLK_0                     */
        PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1),
        /* D20:  DMIC_DATA_0                    */
        PAD_CFG_NF(GPP_D20, NONE, DEEP, NF1),
        /* D21: Not Connected                   */
        PAD_NC(GPP_D21, NONE),
        /* D22:  TPM_RST                        */
        PAD_NC(GPP_D22, NONE),
        /* D23:  TPM_IRQ                        */
        PAD_NC(GPP_D23, NONE),
 
        /* E0:  Not Connected                   */
        PAD_NC(GPP_E0, NONE),
        /* E1:   GPPC_E1_SATAXPCIE_1_SATAGP_1   */
        PAD_CFG_NF(GPP_E1, UP_20K, DEEP, NF1),
        /* E2:  Not Connected                   */
        PAD_NC(GPP_E2, NONE),
        /* E3:  Not Connected                   */
        PAD_NC(GPP_E3, NONE),
        /* E4:  Not Connected                   */
        PAD_NC(GPP_E4, NONE),
        /* E5:   GPPC_E5_SATA_DEVSLP_1          */
        PAD_NC(GPP_E5, NONE),
        /* E6:  Not Connected                   */
        PAD_NC(GPP_E6, NONE),
        /* E7:  Not Connected                   */
        PAD_CFG_GPI(GPP_E7, NONE, PLTRST),
        /* E8:  Not Connected                   */
        PAD_NC(GPP_E8, NONE),
        /* E9:   GPPC_E9_USB2_OCB_0             */
        PAD_CFG_NF(GPP_E9, NONE, DEEP, NF1),
        /* E10:  GPPC_E10_USB2_OCB_1            */
        PAD_CFG_NF(GPP_E10, NONE, DEEP, NF1),
        /* E11:  USB2_P3_WP2_OC_N               */
        PAD_CFG_NF(GPP_E11, NONE, DEEP, NF1),
        /* E12:  GPPC_E12_USB2_OCB_3            */
        PAD_CFG_NF(GPP_E12, NONE, DEEP, NF1),
        /* E13:  DDI1_HPD                       */
        PAD_CFG_NF(GPP_E13, NONE, DEEP, NF1),
        /* E14:  DDI2_HPD                       */
        PAD_CFG_NF(GPP_E14, NONE, DEEP, NF1),
        /* E15:  SMC_SMI_N                      */
        PAD_CFG_GPI_SMI_LOW(GPP_E15, NONE, DEEP, EDGE_SINGLE),
        /* E16:  SMC_SCI_N                      */
        PAD_CFG_GPI_SCI_LOW(GPP_E16, NONE, PLTRST, LEVEL),
        /* E17:  EDP_HPD                        */
        PAD_CFG_NF(GPP_E17, NONE, DEEP, NF1),
        /* E18:  DDI1_DDC_SCL                   */
        PAD_CFG_NF(GPP_E18, NONE, DEEP, NF1),
        /* E19:  DDI1_DDC_SDA                   */
        PAD_CFG_NF(GPP_E19, NONE, DEEP, NF1),
        /* E20:  DDI2_CTRL_CLK                  */
        PAD_CFG_NF(GPP_E20, NONE, DEEP, NF1),
        /* E21:  DDI2_CTRL_DATA                 */
        PAD_CFG_NF(GPP_E21, NONE, DEEP, NF1),
 
        /* F0:  Not Connected                   */
        PAD_NC(GPP_F0, NONE),
        /* F1:  Not Connected                   */
        PAD_NC(GPP_F1, NONE),
        /* F2:  Not Connected                   */
        PAD_NC(GPP_F2, NONE),
        /* F3:  Not Connected                   */
        PAD_NC(GPP_F3, NONE),
        /* F4:  CNV_BRI_DT_R                    */
        PAD_CFG_NF(GPP_F4, UP_20K, DEEP, NF1),
        /* F5:  CNV_BRI_RSP                     */
        PAD_CFG_NF(GPP_F5, UP_20K, DEEP, NF1),
        /* F6:  CNV_RGI_DT_R                    */
        PAD_CFG_NF(GPP_F6, UP_20K, DEEP, NF1),
        /* F7:  CNV_RGI_RSP                     */
        PAD_CFG_NF(GPP_F7, UP_20K, DEEP, NF1),
        /* F8:  Not Connected                   */
        PAD_NC(GPP_F8, NONE),
        /* F9:  Not Connected                   */
        PAD_NC(GPP_F9, NONE),
        /* F10: Not Connected                   */
        PAD_NC(GPP_F10, NONE),
        /* F11: EMMC_CMD                        */
        PAD_NC(GPP_F11, NONE),
        /* F12: EMMC_DATA_0                     */
        PAD_NC(GPP_F12, NONE),
        /* F13: EMMC_DATA_1                     */
        PAD_NC(GPP_F13, NONE),
        /* F14: EMMC_DATA_2                     */
        PAD_NC(GPP_F14, NONE),
        /* F15: EMMC_DATA_3                     */
        PAD_NC(GPP_F15, NONE),
        /* F16: EMMC_DATA_4                     */
        PAD_NC(GPP_F16, NONE),
        /* F17: EMMC_DATA_5                     */
        PAD_NC(GPP_F17, NONE),
        /* F18: EMMC_DATA_6                     */
        PAD_NC(GPP_F18, NONE),
        /* F19: EMMC_DATA_7                     */
        PAD_NC(GPP_F19, NONE),
        /* F20: EMMC_STROBE                     */
        PAD_NC(GPP_F20, NONE),
        /* F21: EMMC_CLK                        */
        PAD_NC(GPP_F21, NONE),
        /* F22: EMMC_RESETB                     */
        PAD_NC(GPP_F22, NONE),
        /* F23: A4WP_PRESENT                    */
        PAD_CFG_NF(GPP_F23, DN_20K, DEEP, NF1),
 
        /* G0:  Not Connected                   */
        PAD_NC(GPP_G0, NONE),
        /* G1:  Not Connected                   */
        PAD_NC(GPP_G1, NONE),
        /* G2:  Not Connected                   */
        PAD_NC(GPP_G2, NONE),
        /* G3:  Not Connected                   */
        PAD_NC(GPP_G3, NONE),
        /* G4:  Not Connected                   */
        PAD_NC(GPP_G4, NONE),
        /* G5:  Not Connected                   */
        PAD_NC(GPP_G5, UP_20K),
        /* G6:  Not Connected                   */
        PAD_NC(GPP_G6, NONE),
        /* G7:  Not Connected                   */
        PAD_NC(GPP_G7, DN_20K),
 
        /* H0:  Not Connected                   */
        PAD_NC(GPP_H0, NONE),
        /* H1:   GPPC_H1_SSP2_SFRM              */
        PAD_CFG_NF(GPP_H1, UP_20K, DEEP, NF3),
        /* H2:   GPPC_H2_SSP2_TXD               */
        PAD_CFG_NF(GPP_H2, UP_20K, DEEP, NF3),
        /* H3:  Not Connected                   */
        PAD_NC(GPP_H3, UP_20K),
        /* H4:   GSENSOR_I2C_SDA                */
        PAD_NC(GPP_H4, NONE),
        /* H5:   GSENSOR_I2C_SCL                */
        PAD_NC(GPP_H5, NONE),
        /* H8:  Not Connected                   */
        PAD_NC(GPP_H8, NONE),
        /* H9:  Not Connected                   */
        PAD_NC(GPP_H9, NONE),
        /* H10:  ISH_I2C2_SDA                   */
        PAD_CFG_GPO(GPP_H10, 1, PLTRST),
        /* H11:  ISH_I2C2_SCL                   */
        PAD_CFG_GPO(GPP_H11, 1, PLTRST),
        /* H12: Not Connected                   */
        PAD_NC(GPP_H12, NONE),
        /* H13: Not Connected                   */
        PAD_NC(GPP_H13, NONE),
        /* H14: Not Connected                   */
        PAD_NC(GPP_H14, NONE),
        /* H15: Not Connected                   */
        PAD_NC(GPP_H15, NONE),
        /* H16: Not Connected                   */
        PAD_NC(GPP_H16, NONE),
        /* H17:  GPPC_H_17_WWAN_DISABLE_N       */
        PAD_CFG_GPO(GPP_H17, 0, DEEP),
        /* H18:  GPPC_H_18_CPU_C10              */
        PAD_CFG_NF(GPP_H18, NONE, DEEP, NF1),
        /* H19: Not Connected                   */
        PAD_NC(GPP_H19, NONE),
        /* H20: Not Connected                   */
        PAD_NC(GPP_H20, NONE),
        /* H21:  GPPC_H21                       */
        PAD_CFG_GPO(GPP_H21, 0, DEEP),
        /* H22: Not Connected                   */
        PAD_NC(GPP_H22, NONE),
        /* H23:  GPPC_H23                       */
        PAD_CFG_GPO(GPP_H23, 0, DEEP),
};
 
const struct pad_config *variant_gpio_table(size_t *num)
{
        *num = ARRAY_SIZE(gpio_table);
        return gpio_table;
}