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

   1 # SPDX-License-Identifier: GPL-2.0-only
   2
   3 chip soc/intel/tigerlake
   4         register "common_soc_config" = "{
   5                 // Touchpad I2C bus
   6                 .i2c[0] = {
   7                         .speed = I2C_SPEED_FAST,
   8                         .rise_time_ns = 80,
   9                         .fall_time_ns = 110,
  10                 },
  11         }"
  12
  13 # ACPI (soc/intel/tigerlake/acpi.c)
  14         # Enable Enhanced Intel SpeedStep
  15         register "eist_enable" = "true"
  16
  17         # Enable s0ix, required for TGL-U
  18         register "s0ix_enable" = "true"
  19
  20 # FSP Memory (soc/intel/tigerlake/romstage/fsp_params.c)
  21         # Enable C6 DRAM
  22         register "enable_c6dram" = "1"
  23
  24         # System Agent dynamic frequency support
  25         register "SaGv" = "SaGv_Enabled"
  26
  27 # FSP Silicon (soc/intel/tigerlake/fsp_params.c)
  28         # Acoustic settings
  29         register "AcousticNoiseMitigation" = "1"
  30         register "SlowSlewRate" = "SLEW_FAST_8"
  31         register "FastPkgCRampDisable" = "1"
  32
  33         # FIVR configuration
  34         #   Read EXT_RAIL_CONFIG to determine bitmaps
  35         #     sudo devmem2 0xfe0011b8
  36         #     0x0
  37         #   Read EXT_V1P05_VR_CONFIG
  38         #     sudo devmem2 0xfe0011c0
  39         #     0x1a42000
  40         #   Read EXT_VNN_VR_CONFIG0
  41         #     sudo devmem2 0xfe0011c4
  42         #     0x1a42000
  43         # TODO: v1p05 voltage and vnn icc max?
  44         register "ext_fivr_settings" = "{
  45                 .configure_ext_fivr = 1,
  46                 .v1p05_enable_bitmap = 0,
  47                 .vnn_enable_bitmap = 0,
  48                 .v1p05_supported_voltage_bitmap = 0,
  49                 .vnn_supported_voltage_bitmap = 0,
  50                 .v1p05_icc_max_ma = 500,
  51                 .vnn_sx_voltage_mv = 1050,
  52         }"
  53
  54         # Read LPM_EN, make sure to invert the bits
  55         register "LpmStateDisableMask" = "
  56                 LPM_S0i2_1 |
  57                 LPM_S0i2_2 |
  58                 LPM_S0i3_1 |
  59                 LPM_S0i3_2 |
  60                 LPM_S0i3_3 |
  61                 LPM_S0i3_4
  62         "
  63
  64         # Thermal
  65         register "tcc_offset" = "12"
  66
  67 # Actual device tree
  68         device domain 0 on
  69                 device ref system_agent on end
  70                 device ref igpu on
  71                         # DDIA is eDP
  72                         register "DdiPortAConfig" = "DDI_PORT_CFG_EDP"
  73                         register "DdiPortAHpd" = "1"
  74                         register "DdiPortADdc" = "0"
  75
  76                         # DDIB is HDMI
  77                         register "DdiPortBConfig" = "DDI_PORT_CFG_NO_LFP"
  78                         register "DdiPortBHpd" = "1"
  79                         register "DdiPortBDdc" = "1"
  80
  81                         register "gfx" = "GMA_DEFAULT_PANEL(0)"
  82                 end
  83                 device ref dptf on end
  84                 device ref tbt_pcie_rp0 on end
  85                 device ref gna on end
  86                 device ref shared_ram on end
  87                 device ref cnvi_wifi on
  88                         register "CnviBtCore" = true
  89                         register "CnviBtAudioOffload" = true
  90                         chip drivers/wifi/generic
  91                                 register "wake" = "GPE0_PME_B0"
  92                                 device generic 0 on end
  93                         end
  94                 end
  95                 device ref i2c0 on
  96                         # Touchpad I2C bus
  97                         register "SerialIoI2cMode[PchSerialIoIndexI2C0]" = "PchSerialIoPci"
  98                         chip drivers/i2c/hid
  99                                 register "generic.hid" = ""ELAN0412""
 100                                 register "generic.desc" = ""ELAN Touchpad""
 101                                 register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPP_B3)"
 102                                 register "generic.detect" = "1"
 103                                 register "hid_desc_reg_offset" = "0x01"
 104                                 device i2c 15 on end
 105                         end
 106                         chip drivers/i2c/hid
 107                                 register "generic.hid" = ""FTCS1000""
 108                                 register "generic.desc" = ""FocalTech Touchpad""
 109                                 register "generic.irq_gpio" = "ACPI_GPIO_IRQ_LEVEL_LOW(GPP_B3)"
 110                                 register "generic.detect" = "1"
 111                                 register "hid_desc_reg_offset" = "0x01"
 112                                 device i2c 38 on end
 113                         end
 114                 end
 115                 device ref i2c1 on
 116                         # TODO: USB-PD?
 117                         register "SerialIoI2cMode[PchSerialIoIndexI2C1]" = "PchSerialIoPci"
 118                 end
 119                 device ref heci1 on end
 120                 device ref uart2 on
 121                         # Debug console
 122                         register "SerialIoUartMode[PchSerialIoIndexUART2]" = "PchSerialIoSkipInit"
 123                 end
 124                 device ref pch_espi on
 125                         register "gen1_dec" = "0x00040069"
 126                         register "gen2_dec" = "0x00fc0E01"
 127                         register "gen3_dec" = "0x00fc0F01"
 128                         chip drivers/pc80/tpm
 129                                 device pnp 0c31.0 on end
 130                         end
 131                 end
 132                 device ref p2sb on end
 133                 device ref hda on
 134                         register "PchHdaAudioLinkHdaEnable" = "1"
 135                 end
 136                 device ref smbus on end
 137                 device ref fast_spi on end
 138         end
 139 end