src/mainboard/google/zork/variants/dalboz/gpio.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <baseboard/gpio.h>
   4 #include <baseboard/variants.h>
   5 #include <gpio.h>
   6 #include <ec/google/chromeec/ec.h>
   7
   8 /* This table is used by dalboz variant with board version < 2. */
   9 static const struct soc_amd_gpio bid_1_gpio_set_stage_ram[] = {
  10         /* DMIC_SEL */
  11         PAD_GPO(GPIO_6, LOW), // Select Camera 1 DMIC
  12         /* USB_OC2_L - USB A0 & A1 */
  13         PAD_NF(GPIO_18, USB_OC2_L, PULL_NONE),
  14         /* TP */
  15         PAD_NC(GPIO_32),
  16         /* EN_PWR_TOUCHPAD_PS2 */
  17         PAD_GPO(GPIO_67, HIGH),
  18         /* EN_DEV_BEEP_L */
  19         PAD_GPO(GPIO_89, HIGH),
  20         /* USI_RESET */
  21         PAD_GPO(GPIO_140, HIGH),
  22         /* Unused */
  23         PAD_NC(GPIO_143),
  24 };
  25
  26 static const struct soc_amd_gpio bid_2_gpio_set_stage_ram[] = {
  27         /* DMIC_SEL */
  28         PAD_GPO(GPIO_6, LOW), // Select Camera 1 DMIC
  29         /* TP */
  30         PAD_NC(GPIO_32),
  31         /* EN_PWR_TOUCHPAD_PS2 */
  32         PAD_GPO(GPIO_67, HIGH),
  33         /* EN_DEV_BEEP_L */
  34         PAD_GPO(GPIO_89, HIGH),
  35         /* USI_RESET */
  36         PAD_GPO(GPIO_140, HIGH),
  37 };
  38
  39 const struct soc_amd_gpio *variant_override_gpio_table(size_t *size)
  40 {
  41         uint32_t board_version;
  42
  43         /*
  44          * If board version cannot be read, assume that this is an older revision of the board
  45          * and so apply overrides. If board version is provided by the EC, then apply overrides
  46          * if version < 2.
  47          */
  48         if (google_chromeec_cbi_get_board_version(&board_version) != 0)
  49                 board_version = 1;
  50
  51         if (board_version < 2) {
  52                 *size = ARRAY_SIZE(bid_1_gpio_set_stage_ram);
  53                 return bid_1_gpio_set_stage_ram;
  54         } else if (board_version == 2) {
  55                 *size = ARRAY_SIZE(bid_2_gpio_set_stage_ram);
  56                 return bid_2_gpio_set_stage_ram;
  57         }
  58
  59         *size = 0;
  60         return NULL;
  61 }