src/mainboard/google/dedede/variants/drawcia/gpio.c

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #include <baseboard/gpio.h>
   4 #include <baseboard/variants.h>
   5 #include <boardid.h>
   6 #include <bootstate.h>
   7 #include <fw_config.h>
   8 #include <ec/google/chromeec/ec.h>
   9
  10 /* Pad configuration in ramstage */
  11 static const struct pad_config not_board6or8_gpio_table[] = {
  12         /* C12 : AP_PEN_DET_ODL */
  13         PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, UP_20K, DEEP),
  14 };
  15
  16 /* bid6: Pad configuration for board version 6 or 8 in ramstage */
  17 static const struct pad_config board6or8_gpio_table[] = {
  18         /* A10 : WWAN_EN */
  19         PAD_CFG_GPO(GPP_A10, 1, PWROK),
  20
  21         /* B7  : PCIE_CLKREQ2_N ==> WWAN_SAR_DETECT_ODL*/
  22         PAD_CFG_GPO(GPP_B7, 1, DEEP),
  23
  24         /* C12 : AP_PEN_DET_ODL has an external pull-up and hence no pad termination.*/
  25         PAD_CFG_GPI_GPIO_DRIVER(GPP_C12, NONE, DEEP),
  26
  27         /* D0  : WWAN_HOST_WAKE ==> WWAN_WDISABLE_L */
  28         PAD_CFG_GPO(GPP_D0, 1, DEEP),
  29
  30         /* H0 : WWAN_PERST */
  31         PAD_CFG_GPO(GPP_H0, 0, PLTRST),
  32         PAD_CFG_GPO(GPP_H17, 0, PLTRST),
  33 };
  34
  35 static const struct pad_config lte_disable_pads[] = {
  36         PAD_NC(GPP_A10, NONE),
  37         PAD_NC(GPP_B7, NONE),
  38         PAD_NC(GPP_D0, NONE),
  39         PAD_NC(GPP_H0, NONE),
  40         PAD_NC(GPP_H17, NONE),
  41 };
  42
  43 const struct pad_config *variant_override_gpio_table(size_t *num)
  44 {
  45         uint32_t board_version = board_id();
  46         *num = ARRAY_SIZE(not_board6or8_gpio_table);
  47
  48         if (board_version == 6 || board_version >= 8) {
  49                 *num = ARRAY_SIZE(board6or8_gpio_table);
  50                 return board6or8_gpio_table;
  51         }
  52
  53         return not_board6or8_gpio_table;
  54 }
  55
  56 static void fw_config_handle(void *unused)
  57 {
  58         if (!fw_config_probe(FW_CONFIG(DB_PORTS, DB_PORTS_1A_HDMI_LTE)))
  59                 gpio_configure_pads(lte_disable_pads, ARRAY_SIZE(lte_disable_pads));
  60 }
  61 BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);