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

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <baseboard/variants.h>
   4 #include <chip.h>
   5 #include <fw_config.h>
   6 #include <sar.h>
   7 #include <soc/gpio_soc_defs.h>
   8 #include <intelblocks/graphics.h>
   9 #include <drivers/intel/gma/opregion.h>
  10 #include <console/console.h>
  11 #include <ec/google/chromeec/ec.h>
  12
  13 /* Per-pipe DDI Function Control 2 */
  14 #define TRANS_DDI_FUNC_CTL2_A                                   0x60404
  15 #define TRANS_DDI_AUDIO_MUTE_OVERRIDE_BITS_FIELDS               (3 << 6)
  16
  17 const char *get_wifi_sar_cbfs_filename(void)
  18 {
  19         return get_wifi_sar_fw_config_filename(FW_CONFIG_FIELD(WIFI));
  20 }
  21
  22 static const struct pad_config wifi_pcie_enable_pad[] = {
  23         /* H20 : IMGCLKOUT1 ==> WLAN_PERST_L */
  24         PAD_CFG_GPO(GPP_H20, 1, DEEP),
  25         /* B11 : NC ==> EN_PP3300_WLAN_X*/
  26         PAD_CFG_GPO(GPP_B11, 1, DEEP),
  27 };
  28
  29 void variant_update_soc_chip_config(struct soc_intel_alderlake_config *config)
  30 {
  31         if (!fw_config_probe(FW_CONFIG(WIFI, WIFI_6E))) {
  32                 printk(BIOS_INFO, "CNVi bluetooth disabled by fw_config\n");
  33                 config->cnvi_bt_core = false;
  34                 printk(BIOS_INFO, "CNVi bluetooth audio offload disabled by fw_config\n");
  35                 config->cnvi_bt_audio_offload = false;
  36         }
  37 }
  38
  39 void fw_config_gpio_padbased_override(struct pad_config *padbased_table)
  40 {
  41         if (fw_config_probe(FW_CONFIG(WIFI, WIFI_6_7921))
  42                 || fw_config_probe(FW_CONFIG(WIFI, WIFI_6_8852))) {
  43                 printk(BIOS_INFO, "Enable PCie based Wifi GPIO pins.\n");
  44                 gpio_padbased_override(padbased_table, wifi_pcie_enable_pad,
  45                                                 ARRAY_SIZE(wifi_pcie_enable_pad));
  46         }
  47 }
  48
  49 void variant_finalize(void)
  50 {
  51         /*
  52          * Panel CSOT MNB601LS1-3 will flicker once during enter Chrome login screen,
  53          * it is because it inserts 12 blank frames if it receives the unmute in VB-ID.
  54          *
  55          * Always override the mute in VB-ID to avoid Tcon EC detected the
  56          * audiomute_flag change.
  57          */
  58         graphics_gtt_rmw(TRANS_DDI_FUNC_CTL2_A, ~TRANS_DDI_AUDIO_MUTE_OVERRIDE_BITS_FIELDS,
  59                 TRANS_DDI_AUDIO_MUTE_OVERRIDE_BITS_FIELDS);
  60 }
  61
  62 static int get_ssfc(uint32_t *val)
  63 {
  64         static uint32_t known_value;
  65         static enum {
  66                 SSFC_NOT_READ,
  67                 SSFC_AVAILABLE,
  68         } ssfc_state = SSFC_NOT_READ;
  69
  70         if (ssfc_state == SSFC_AVAILABLE) {
  71                 *val = known_value;
  72                 return 0;
  73         }
  74
  75         /*
  76          * If SSFC field is not in the CBI then the value of SSFC will be 0 for
  77          * further processing later since 0 of each bits group means default
  78          * component in a variant. For more detail, please refer to cbi_ssfc.h.
  79          */
  80         if (google_chromeec_cbi_get_ssfc(&known_value) != 0) {
  81                 printk(BIOS_DEBUG, "SSFC not set in CBI\n");
  82                 return -1;
  83         }
  84
  85         ssfc_state = SSFC_AVAILABLE;
  86         *val = known_value;
  87         printk(BIOS_INFO, "SSFC 0x%x.\n", known_value);
  88         return 0;
  89 }
  90
  91 const char *mainboard_vbt_filename(void)
  92 {
  93         uint32_t ssfc;
  94         if (get_ssfc(&ssfc)) {
  95                 printk(BIOS_INFO, "Failed to read SSFC, using default vbt-teliks.bin\n");
  96                 return "vbt-teliks.bin";
  97         }
  98
  99         /*
 100          * Determine if the panel is 11 inches based on the SSFC register.
 101          *
 102          * Bit 6 of the SSFC register indicates the panel size:
 103          *   0: 12.2 inch panel
 104          *   1: 11.6 inch panel
 105          */
 106         bool is_panel_11_inch = (ssfc >> 6) & 0x1;
 107
 108         if (is_panel_11_inch) {
 109                 printk(BIOS_INFO, "Bit 6 of SSFC is 1, use vbt-teliks_panel_11_inch.bin\n");
 110                 return "vbt-teliks_panel_11_inch.bin";
 111         }
 112
 113         printk(BIOS_INFO, "Bit 6 of SSFC is 0, use vbt-teliks.bin\n");
 114         return "vbt-teliks.bin";
 115 }