src/mainboard/google/zork/variants/berknip/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 static const struct soc_amd_gpio berknip_bid1_gpio_set_stage_ram[] = {
   9         /* PEN_DETECT_ODL - no used */
  10         PAD_NC(GPIO_4),
  11         /* PEN_POWER_EN - no used */
  12         PAD_NC(GPIO_5),
  13         /* DMIC_SEL */
  14         PAD_GPO(GPIO_13, LOW), // Select Camera 1 Dmic
  15         /* USB_OC4_L - USB_A1 */
  16         PAD_NF(GPIO_14, USB_OC4_L, PULL_NONE),
  17         /* USB_OC2_L - USB A0 */
  18         PAD_NF(GPIO_18, USB_OC2_L, PULL_NONE),
  19         /* EN_PWR_WIFI */
  20         PAD_GPO(GPIO_29, HIGH),
  21         /* EN_PWR_TOUCHPAD_PS2 */
  22         PAD_GPO(GPIO_67, HIGH),
  23         /* MST_GPIO_2 (Fw Update HDMI hub) */
  24         PAD_GPI(GPIO_86, PULL_NONE),
  25         /* EN_DEV_BEEP_L */
  26         PAD_GPO(GPIO_89, HIGH),
  27         /* MST_GPIO_3 (Fw Update HDMI hub) */
  28         PAD_GPI(GPIO_90, PULL_NONE),
  29         /* USI_RESET */
  30         PAD_GPO(GPIO_140, HIGH),
  31 };
  32
  33 static const struct soc_amd_gpio berknip_bid2_gpio_set_stage_ram[] = {
  34         /* PEN_DETECT_ODL - no used */
  35         PAD_NC(GPIO_4),
  36         /* PEN_POWER_EN - no used */
  37         PAD_NC(GPIO_5),
  38         /* EN_DEV_BEEP_L */
  39         PAD_GPO(GPIO_89, HIGH),
  40         /* TP */
  41         PAD_NC(GPIO_90),
  42         /* USI_RESET */
  43         PAD_GPO(GPIO_140, HIGH),
  44 };
  45
  46 static const struct soc_amd_gpio berknip_gpio_set_stage_ram[] = {
  47         /* PEN_DETECT_ODL - no used */
  48         PAD_NC(GPIO_4),
  49         /* PEN_POWER_EN - no used */
  50         PAD_NC(GPIO_5),
  51 };
  52
  53 const struct soc_amd_gpio *variant_override_gpio_table(size_t *size)
  54 {
  55         uint32_t board_version;
  56
  57         /*
  58          * If board version cannot be read, assume that this is an older revision of the board
  59          * and so apply overrides. If board version is provided by the EC, then apply overrides
  60          * if version < 2.
  61          */
  62         if (google_chromeec_cbi_get_board_version(&board_version) != 0)
  63                 board_version = 1;
  64
  65         if (board_version <= 1) {
  66                 *size = ARRAY_SIZE(berknip_bid1_gpio_set_stage_ram);
  67                 return berknip_bid1_gpio_set_stage_ram;
  68         } else if (board_version <= 2) {
  69                 *size = ARRAY_SIZE(berknip_bid2_gpio_set_stage_ram);
  70                 return berknip_bid2_gpio_set_stage_ram;
  71         }
  72
  73         *size = ARRAY_SIZE(berknip_gpio_set_stage_ram);
  74         return berknip_gpio_set_stage_ram;
  75 }