src/mainboard/google/octopus/variants/meep/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 #include <variant/sku.h>
   7 #include <ec/google/chromeec/ec.h>
   8
   9 static const struct pad_config default_override_table[] = {
  10         PAD_NC(GPIO_104, UP_20K),
  11
  12         /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
  13         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  14                                 DISPUPD),
  15
  16         /* EN_PP3300_TOUCHSCREEN */
  17         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  18         /* GPIO_105 -- TOUCHSCREEN_RST */
  19         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  20         /* GPIO_140 -- PEN_RESET */
  21         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  22 };
  23
  24 static const struct pad_config hdmi_sku_override_table[] = {
  25         PAD_NC(GPIO_104, UP_20K),
  26
  27         /* HV_DDI1_DDC_SDA */
  28         PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_126, NONE, DEEP, NF1, HIZCRx1,
  29                                         DISPUPD),
  30         /* HV_DDI1_DDC_SCL */
  31         PAD_CFG_NF_IOSSTATE_IOSTERM(GPIO_127, NONE, DEEP, NF1, HIZCRx1,
  32                                         DISPUPD),
  33
  34         /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
  35         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  36                                 DISPUPD),
  37
  38         /* EN_PP3300_TOUCHSCREEN */
  39         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  40         /* GPIO_105 -- TOUCHSCREEN_RST */
  41         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  42         /* GPIO_140 -- PEN_RESET */
  43         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  44 };
  45
  46 const struct pad_config *variant_override_gpio_table(size_t *num)
  47 {
  48         uint32_t sku_id;
  49         sku_id = google_chromeec_get_board_sku();
  50
  51         switch (sku_id) {
  52         case SKU_33_DORP:
  53         case SKU_34_DORP:
  54         case SKU_35_DORP:
  55         case SKU_36_DORP:
  56                 *num = ARRAY_SIZE(hdmi_sku_override_table);
  57                 return hdmi_sku_override_table;
  58         default:
  59                 *num = ARRAY_SIZE(default_override_table);
  60                 return default_override_table;
  61         }
  62 }
  63
  64 /* GPIOs needed to be set in romstage. */
  65 static const struct pad_config romstage_gpio_table[] = {
  66         /* Enable touchscreen, hold in reset */
  67          /* EN_PP3300_TOUCHSCREEN */
  68         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  69         /* GPIO_105 -- TOUCHSCREEN_RST */
  70         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  71         /* GPIO_140 -- PEN_RESET */
  72         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  73 };
  74
  75 const struct pad_config *variant_romstage_gpio_table(size_t *num)
  76 {
  77         *num = ARRAY_SIZE(romstage_gpio_table);
  78         return romstage_gpio_table;
  79 }