src/mainboard/google/zork/variants/trembyle/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 trembyle_bid1_bid2_gpio_set_stage_ram[] = {
   9         /* DMIC_SEL */
  10         PAD_GPO(GPIO_13, LOW), // Select Camera 1 Dmic
  11         /* USB_OC4_L - USB_A1 */
  12         PAD_NF(GPIO_14, USB_OC4_L, PULL_NONE),
  13         /* USB_OC2_L - USB A0 */
  14         PAD_NF(GPIO_18, USB_OC2_L, PULL_NONE),
  15         /* EN_PWR_WIFI */
  16         PAD_GPO(GPIO_29, HIGH),
  17         /* EN_PWR_TOUCHPAD_PS2 */
  18         PAD_GPO(GPIO_67, HIGH),
  19         /* DMIC_AD_EN */
  20         PAD_GPO(GPIO_84, HIGH),
  21         /* MST_GPIO_2 (Fw Update HDMI hub) */
  22         PAD_GPI(GPIO_86, PULL_NONE),
  23         /* EN_DEV_BEEP_L */
  24         PAD_GPO(GPIO_89, HIGH),
  25         /* MST_GPIO_3 (Fw Update HDMI hub) */
  26         PAD_GPI(GPIO_90, PULL_NONE),
  27         /* USI_RESET */
  28         PAD_GPO(GPIO_140, HIGH),
  29 };
  30
  31 static const struct soc_amd_gpio trembyle_bid3_gpio_set_stage_ram[] = {
  32         /* DMIC_SEL */
  33         PAD_GPO(GPIO_13, LOW), // Select Camera 1 Dmic
  34         /* USB_OC4_L - USB_A1 */
  35         PAD_NF(GPIO_14, USB_OC4_L, PULL_NONE),
  36         /* USB_OC2_L - USB A0 */
  37         PAD_NF(GPIO_18, USB_OC2_L, PULL_NONE),
  38         /* EN_PWR_WIFI */
  39         PAD_GPO(GPIO_29, HIGH),
  40         /* EN_PWR_TOUCHPAD_PS2 */
  41         PAD_GPO(GPIO_67, HIGH),
  42         /* MST_GPIO_2 (Fw Update HDMI hub) */
  43         PAD_GPI(GPIO_86, PULL_NONE),
  44         /* EN_DEV_BEEP_L */
  45         PAD_GPO(GPIO_89, HIGH),
  46         /* MST_GPIO_3 (Fw Update HDMI hub) */
  47         PAD_GPI(GPIO_90, PULL_NONE),
  48         /* USI_RESET */
  49         PAD_GPO(GPIO_140, HIGH),
  50 };
  51
  52 const struct soc_amd_gpio *variant_override_gpio_table(size_t *size)
  53 {
  54         uint32_t board_version;
  55
  56         /*
  57          * If board version cannot be read, assume that this is an older revision of the board
  58          * and so apply overrides. If board version is provided by the EC, then apply overrides
  59          * if version < 2.
  60          */
  61         if (google_chromeec_cbi_get_board_version(&board_version) != 0)
  62                 board_version = 1;
  63
  64         if (board_version <= 2) {
  65                 *size = ARRAY_SIZE(trembyle_bid1_bid2_gpio_set_stage_ram);
  66                 return trembyle_bid1_bid2_gpio_set_stage_ram;
  67         } else if (board_version <= 3) {
  68                 *size = ARRAY_SIZE(trembyle_bid3_gpio_set_stage_ram);
  69                 return trembyle_bid3_gpio_set_stage_ram;
  70         }
  71
  72         *size = 0;
  73         return NULL;
  74 }