src/mainboard/system76/tgl-u/devicetree.cb

   1 chip soc/intel/tigerlake
   2         register "common_soc_config" = "{
   3                 // Touchpad I2C bus
   4                 .i2c[0] = {
   5                         .speed = I2C_SPEED_FAST,
   6                         .rise_time_ns = 80,
   7                         .fall_time_ns = 110,
   8                 },
   9         }"
  10
  11 # ACPI (soc/intel/tigerlake/acpi.c)
  12         # Enable Enhanced Intel SpeedStep
  13         register "eist_enable" = "1"
  14
  15         # Enable s0ix, required for TGL-U
  16         register "s0ix_enable" = "1"
  17
  18 # FSP Memory (soc/intel/tigerlake/romstage/fsp_params.c)
  19         # Enable C6 DRAM
  20         register "enable_c6dram" = "1"
  21
  22         # System Agent dynamic frequency support
  23         register "SaGv" = "SaGv_Enabled"
  24
  25 # FSP Silicon (soc/intel/tigerlake/fsp_params.c)
  26         # Acoustic settings
  27         register "AcousticNoiseMitigation" = "1"
  28         register "SlowSlewRate" = "SLEW_FAST_8"
  29         register "FastPkgCRampDisable" = "1"
  30
  31         # FIVR configuration
  32         #   Read EXT_RAIL_CONFIG to determine bitmaps
  33         #     sudo devmem2 0xfe0011b8
  34         #     0x0
  35         #   Read EXT_V1P05_VR_CONFIG
  36         #     sudo devmem2 0xfe0011c0
  37         #     0x1a42000
  38         #   Read EXT_VNN_VR_CONFIG0
  39         #     sudo devmem2 0xfe0011c4
  40         #     0x1a42000
  41         # TODO: v1p05 voltage and vnn icc max?
  42         register "ext_fivr_settings" = "{
  43                 .configure_ext_fivr = 1,
  44                 .v1p05_enable_bitmap = 0,
  45                 .vnn_enable_bitmap = 0,
  46                 .v1p05_supported_voltage_bitmap = 0,
  47                 .vnn_supported_voltage_bitmap = 0,
  48                 .v1p05_icc_max_ma = 500,
  49                 .vnn_sx_voltage_mv = 1050,
  50         }"
  51
  52         # Read LPM_EN, make sure to invert the bits
  53         register "LpmStateDisableMask" = "
  54                 LPM_S0i2_1 |
  55                 LPM_S0i2_2 |
  56                 LPM_S0i3_1 |
  57                 LPM_S0i3_2 |
  58                 LPM_S0i3_3 |
  59                 LPM_S0i3_4
  60         "
  61
  62         # Thermal
  63         register "tcc_offset" = "12"
  64
  65         # Enable CNVi BT
  66         register "CnviBtCore" = "true"
  67
  68 # Actual device tree
  69         device cpu_cluster 0 on end
  70
  71         device domain 0 on
  72                 device ref system_agent on end
  73                 device ref igpu on
  74                         # DDIA is eDP
  75                         register "DdiPortAConfig" = "DDI_PORT_CFG_EDP"
  76                         register "DdiPortAHpd" = "1"
  77                         register "DdiPortADdc" = "0"
  78
  79                         # DDIB is HDMI
  80                         register "DdiPortBConfig" = "DDI_PORT_CFG_NO_LFP"
  81                         register "DdiPortBHpd" = "1"
  82                         register "DdiPortBDdc" = "1"
  83
  84                         register "gfx" = "GMA_DEFAULT_PANEL(0)"
  85                 end
  86                 device ref dptf on end
  87                 device ref tbt_pcie_rp0 on end
  88                 device ref gna on end
  89                 device ref shared_ram on end
  90                 device ref cnvi_wifi on
  91                         chip drivers/wifi/generic
  92                                 register "wake" = "GPE0_PME_B0"
  93                                 device generic 0 on end
  94                         end
  95                 end
  96                 device ref i2c0 on
  97                         # Touchpad I2C bus
  98                         register "SerialIoI2cMode[PchSerialIoIndexI2C0]" = "PchSerialIoPci"
  99                         chip drivers/i2c/hid
 100                                 register "generic.hid" = ""ELAN0412""
 101                                 register "generic.desc" = ""ELAN Touchpad""
 102                                 register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPP_B3)"
 103                                 register "generic.detect" = "1"
 104                                 register "hid_desc_reg_offset" = "0x01"
 105                                 device i2c 15 on end
 106                         end
 107                         chip drivers/i2c/hid
 108                                 register "generic.hid" = ""FTCS1000""
 109                                 register "generic.desc" = ""FocalTech Touchpad""
 110                                 register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPP_B3)"
 111                                 register "generic.detect" = "1"
 112                                 register "hid_desc_reg_offset" = "0x01"
 113                                 device i2c 38 on end
 114                         end
 115                 end
 116                 device ref i2c1 on
 117                         # TODO: USB-PD?
 118                         register "SerialIoI2cMode[PchSerialIoIndexI2C1]" = "PchSerialIoPci"
 119                 end
 120                 device ref heci1 on end
 121                 device ref uart2 on
 122                         # Debug console
 123                         register "SerialIoUartMode[PchSerialIoIndexUART2]" = "PchSerialIoSkipInit"
 124                 end
 125                 device ref pch_espi on
 126                         register "gen1_dec" = "0x00040069"
 127                         register "gen2_dec" = "0x00fc0E01"
 128                         register "gen3_dec" = "0x00fc0F01"
 129                         chip drivers/pc80/tpm
 130                                 device pnp 0c31.0 on end
 131                         end
 132                 end
 133                 device ref p2sb on end
 134                 device ref hda on
 135                         register "PchHdaAudioLinkHdaEnable" = "1"
 136                 end
 137                 device ref smbus on end
 138                 device ref fast_spi on end
 139         end
 140 end