src/mainboard/google/octopus/variants/yorp/gpio.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <baseboard/gpio.h>
   4 #include <baseboard/variants.h>
   5 #include <gpio.h>
   6
   7 /* GPIOs needed prior to ramstage. */
   8 static const struct pad_config early_gpio_table[] = {
   9         PAD_CFG_GPI(GPIO_190, NONE, DEEP), /* PCH_WP_OD */
  10         /* GSPI0_INT */
  11         PAD_CFG_GPI_APIC_IOS(GPIO_63, NONE, DEEP, LEVEL, INVERT, TxDRxE,
  12                 DISPUPD), /* H1_PCH_INT_ODL */
  13         /* GSPI0_CLK */
  14         PAD_CFG_NF(GPIO_79, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CLK_R */
  15         /* GSPI0_CS# */
  16         PAD_CFG_NF(GPIO_80, NONE, DEEP, NF1), /* H1_SLAVE_SPI_CS_L_R */
  17         /* GSPI0_MISO */
  18         PAD_CFG_NF(GPIO_82, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MISO */
  19         /* GSPI0_MOSI */
  20         PAD_CFG_NF(GPIO_83, NONE, DEEP, NF1), /* H1_SLAVE_SPI_MOSI_R */
  21
  22         /* Enable power to wifi early in bootblock and de-assert PERST#. */
  23         PAD_CFG_GPO(GPIO_178, 1, DEEP), /* EN_PP3300_WLAN */
  24         PAD_CFG_GPO(GPIO_164, 0, DEEP), /* WLAN_PE_RST */
  25
  26         /*
  27          * ESPI_IO1 acts as ALERT# (which is open-drain) and requires a weak
  28          * pull-up for proper operation. Since there is no external pull present
  29          * on this platform, configure an internal weak pull-up.
  30          */
  31         PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_151, UP_20K, DEEP, NF2, HIZCRx1,
  32                                     ENPU), /* ESPI_IO1 */
  33 };
  34
  35 const struct pad_config *variant_early_gpio_table(size_t *num)
  36 {
  37         *num = ARRAY_SIZE(early_gpio_table);
  38         return early_gpio_table;
  39 }
  40
  41 static const struct pad_config default_override_table[] = {
  42          /* EN_PP3300_TOUCHSCREEN */
  43         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  44         /* GPIO_105 -- TOUCHSCREEN_RST */
  45         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  46         /* GPIO_140 -- PEN_RESET */
  47         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  48 };
  49
  50 const struct pad_config *variant_override_gpio_table(size_t *num)
  51 {
  52         *num = ARRAY_SIZE(default_override_table);
  53         return default_override_table;
  54 }
  55
  56 /* GPIOs needed to be set in romstage. */
  57 static const struct pad_config romstage_gpio_table[] = {
  58         /* Enable touchscreen, hold in reset */
  59          /* EN_PP3300_TOUCHSCREEN */
  60         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  61         /* GPIO_105 -- TOUCHSCREEN_RST */
  62         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  63         /* GPIO_140 -- PEN_RESET */
  64         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  65 };
  66
  67 const struct pad_config *variant_romstage_gpio_table(size_t *num)
  68 {
  69         *num = ARRAY_SIZE(romstage_gpio_table);
  70         return romstage_gpio_table;
  71 }