src/mainboard/google/brya/variants/primus/variant.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <baseboard/variants.h>
   4 #include <boardid.h>
   5 #include <device/device.h>
   6 #include <drivers/i2c/hid/chip.h>
   7 #include <fw_config.h>
   8 #include <gpio.h>
   9
  10 static void devtree_update_emmc_rtd3(uint32_t board_ver)
  11 {
  12         struct device *emmc_rtd3 = DEV_PTR(emmc_rtd3);
  13         if (board_ver > 1)
  14                 return;
  15
  16         emmc_rtd3->enabled = 0;
  17 }
  18
  19 static void devtree_update_audio_codec(void)
  20 {
  21         struct device *audio_codec = DEV_PTR(audio_codec);
  22         struct drivers_i2c_generic_config *config = audio_codec->chip_info;
  23
  24         if (fw_config_probe(FW_CONFIG(AUDIO, MAX98360_ALC5682I_VS_I2S)))
  25                 config->hid = "RTL5682";
  26 }
  27
  28 static const struct pad_config nvme_disable_pads[] = {
  29         PAD_NC(GPP_B2, NONE),   /* B2  : VRALERT# ==> M2_SSD_PLA_L */
  30         PAD_NC(GPP_B4, NONE),   /* B4  : PROC_GP3 ==> SSD_PERST_L */
  31         PAD_NC(GPP_D3, NONE),   /* D3  : ISH_GP3 ==> M2_SSD_PLN_L */
  32         PAD_NC(GPP_D5, NONE),   /* D5  : SRCCLKREQ0# ==> SSD_CLKREQ_ODL */
  33         PAD_NC(GPP_D11, NONE),  /* D11 : ISH_SPI_MISO ==> EN_PP3300_SSD */
  34 };
  35
  36 static const struct pad_config emmc_disable_pads[] = {
  37         PAD_NC(GPP_B3, NONE),   /* B3  : PROC_GP2 ==> eMMC_PERST_L */
  38         PAD_NC(GPP_E20, NONE),  /* E20 : USB_C1_LSX_SOC_TX ==> EN_PP3300_eMMC */
  39         PAD_NC(GPP_F19, NONE),  /* F19 : SRCCLKREQ6# ==> EMMC_CLKREQ_ODL */
  40 };
  41
  42 static void disable_unused_gpios(void)
  43 {
  44         int emmc_detected = gpio_get(GPP_T2);
  45
  46         if (emmc_detected == 1)
  47                 gpio_configure_pads(nvme_disable_pads, ARRAY_SIZE(nvme_disable_pads));
  48         else
  49                 gpio_configure_pads(emmc_disable_pads, ARRAY_SIZE(emmc_disable_pads));
  50 }
  51
  52 void variant_devtree_update(void)
  53 {
  54         uint32_t board_ver = board_id();
  55         disable_unused_gpios();
  56         devtree_update_emmc_rtd3(board_ver);
  57         devtree_update_audio_codec();
  58 }