src/mainboard/google/octopus/variants/bobba/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 <ec/google/chromeec/ec.h>
   7
   8 enum {
   9         SKU_37_DROID = 37, /* LTE */
  10         SKU_38_DROID = 38, /* LTE + Touch */
  11         SKU_39_DROID = 39, /* LTE + KB backlight*/
  12         SKU_40_DROID = 40, /* LTE + Touch + KB backlight*/
  13 };
  14
  15 static const struct pad_config default_override_table[] = {
  16         PAD_NC(GPIO_104, UP_20K),
  17
  18         /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
  19         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  20                                 DISPUPD),
  21
  22         /* EN_PP3300_TOUCHSCREEN */
  23         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  24         /* GPIO_105 -- TOUCHSCREEN_RST */
  25         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  26         /* GPIO_140 -- PEN_RESET */
  27         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  28
  29         PAD_NC(GPIO_213, DN_20K),
  30 };
  31
  32 static const struct pad_config lte_override_table[] = {
  33         /* Default override table. */
  34         PAD_NC(GPIO_104, UP_20K),
  35
  36         /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
  37         PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
  38                                 DISPUPD),
  39
  40         /* EN_PP3300_TOUCHSCREEN */
  41         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
  42         /* GPIO_105 -- TOUCHSCREEN_RST */
  43         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  44         /* GPIO_140 -- PEN_RESET */
  45         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 0, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
  46
  47         PAD_NC(GPIO_213, DN_20K),
  48
  49         /* Be specific to LTE SKU */
  50         /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
  51         PAD_CFG_GPO(GPIO_67, 1, PWROK),
  52
  53         /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
  54         PAD_CFG_GPO(GPIO_117, 1, PWROK),
  55
  56         /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
  57         PAD_CFG_GPO(GPIO_161, 1, DEEP),
  58 };
  59
  60 const struct pad_config *variant_override_gpio_table(size_t *num)
  61 {
  62         uint32_t sku_id;
  63         sku_id = google_chromeec_get_board_sku();
  64
  65         switch (sku_id) {
  66         case SKU_37_DROID:
  67         case SKU_38_DROID:
  68         case SKU_39_DROID:
  69         case SKU_40_DROID:
  70                 *num = ARRAY_SIZE(lte_override_table);
  71                 return lte_override_table;
  72         default:
  73                 *num = ARRAY_SIZE(default_override_table);
  74                 return default_override_table;
  75         }
  76 }
  77
  78 static const struct pad_config lte_early_override_table[] = {
  79         /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
  80         PAD_CFG_GPO(GPIO_67, 1, PWROK),
  81
  82         /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
  83         PAD_CFG_GPO(GPIO_117, 1, PWROK),
  84
  85         /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
  86         PAD_CFG_GPO(GPIO_161, 0, DEEP),
  87 };
  88
  89 const struct pad_config *variant_early_override_gpio_table(size_t *num)
  90 {
  91         *num = ARRAY_SIZE(lte_early_override_table);
  92
  93         return lte_early_override_table;
  94 }
  95
  96 /* GPIOs needed to be set in romstage. */
  97 static const struct pad_config romstage_gpio_table[] = {
  98         /* Enable touchscreen, hold in reset */
  99          /* EN_PP3300_TOUCHSCREEN */
 100         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 1, DEEP, NONE, Tx0RxDCRx0, DISPUPD),
 101         /* GPIO_105 -- TOUCHSCREEN_RST */
 102         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_105, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
 103         /* GPIO_140 -- PEN_RESET */
 104         PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_140, 1, DEEP, NONE, Tx1RxDCRx0, DISPUPD),
 105 };
 106
 107 const struct pad_config *variant_romstage_gpio_table(size_t *num)
 108 {
 109         *num = ARRAY_SIZE(romstage_gpio_table);
 110         return romstage_gpio_table;
 111 }