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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <baseboard/gpio.h>
   4 #include <baseboard/variants.h>
   5 #include <boardid.h>
   6 #include <gpio.h>
   7 #include <ec/google/chromeec/ec.h>
   8
   9 #define SKU_UNKNOWN            0xFFFFFFFF
  10
  11 static const struct pad_config default_override_table[] = {
  12         PAD_NC(GPIO_52, UP_20K),
  13         PAD_NC(GPIO_53, UP_20K),
  14         PAD_NC(GPIO_67, UP_20K),
  15         PAD_NC(GPIO_117, UP_20K),
  16         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  17                                         DISPUPD),
  18         PAD_NC(GPIO_143, UP_20K),
  19
  20         /* EN_PP3300_TOUCHSCREEN */
  21         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  22         /* GPIO_105 -- TOUCHSCREEN_RST */
  23         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  24         /* GPIO_140 -- PEN_RESET */
  25         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  26
  27         PAD_NC(GPIO_161, DN_20K),
  28
  29         PAD_NC(GPIO_213, DN_20K),
  30         PAD_NC(GPIO_214, DN_20K),
  31 };
  32
  33 static const struct pad_config sku1_default_override_table[] = {
  34        /* disable I2C7 SCL and SDA */
  35         PAD_NC(GPIO_114, UP_20K),     /* LPSS_I2C7_SDA */
  36         PAD_NC(GPIO_115, UP_20K),     /* LPSS_I2C7_SCL */
  37
  38         PAD_NC(GPIO_52, UP_20K),
  39         PAD_NC(GPIO_53, UP_20K),
  40         PAD_NC(GPIO_67, UP_20K),
  41         PAD_NC(GPIO_117, UP_20K),
  42         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  43                                         DISPUPD),
  44         PAD_NC(GPIO_143, UP_20K),
  45
  46         /* EN_PP3300_TOUCHSCREEN */
  47         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
  48                                         DISPUPD),
  49
  50         PAD_NC(GPIO_161, DN_20K),
  51
  52         /* EN_PP3300_WLAN_L */
  53         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_178, 0, DEEP, NONE, Tx0RxDCRx0,
  54                                         DISPUPD),
  55
  56         PAD_NC(GPIO_213, DN_20K),
  57         PAD_NC(GPIO_214, DN_20K),
  58 };
  59
  60 bool no_touchscreen_sku(uint32_t sku_id)
  61 {
  62         if ((sku_id == 1) || (sku_id == 6))
  63                 return true;
  64         else
  65                 return false;
  66 }
  67
  68 const struct pad_config *variant_override_gpio_table(size_t *num)
  69 {
  70         const struct pad_config *c;
  71         uint32_t sku_id = SKU_UNKNOWN;
  72
  73         google_chromeec_cbi_get_sku_id(&sku_id);
  74         if (no_touchscreen_sku(sku_id)) {
  75                 c = sku1_default_override_table;
  76                 *num = ARRAY_SIZE(sku1_default_override_table);
  77         } else {
  78                 c = default_override_table;
  79                 *num = ARRAY_SIZE(default_override_table);
  80         }
  81
  82         return c;
  83 }
  84
  85
  86 /* Touchscreen GPIOs needed to be set in romstage. */
  87 static const struct pad_config romstage_touch_gpio_table[] = {
  88         /* Enable touchscreen, hold in reset */
  89          /* EN_PP3300_TOUCHSCREEN */
  90         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  91         /* GPIO_105 -- TOUCHSCREEN_RST */
  92         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  93         /* GPIO_140 -- PEN_RESET */
  94         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  95 };
  96
  97 const struct pad_config *variant_romstage_gpio_table(size_t *num)
  98 {
  99         const struct pad_config *c;
 100         uint32_t sku_id = SKU_UNKNOWN;
 101
 102         google_chromeec_cbi_get_sku_id(&sku_id);
 103         if (no_touchscreen_sku(sku_id)) {
 104                 c = NULL;
 105                 *num = 0;
 106         } else {
 107                 c = romstage_touch_gpio_table;
 108                 *num = ARRAY_SIZE(romstage_touch_gpio_table);
 109         }
 110
 111         return c;
 112 }