coreboot-kgpe-d16/src/mainboard/purism/librem_bdw/devicetree.cb

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chip soc/intel/broadwell
# Enable eDP Hotplug with 6ms pulse
register "gpu_dp_d_hotplug" = "0x06"
# Enable DDI1 Hotplug with 6ms pulse
register "gpu_dp_b_hotplug" = "0x06"
intel/broadwell: Implement proper backlight PWM config Port the backlight-PWM handling from Skylake instead of the previously used Haswell version. We use a 200Hz PWM signal for all boards. Which is higher than the previous devicetree value, 183Hz, but that was over- ridden by the VBIOS anyway. 200Hz is still very low, considering LED backlights, but accurate values are unknown at this time. Lynx Point, the PCH for Haswell and Broadwell, is a transition point for the backlight-PWM config. On platforms with a PCH, we have: o Before Lynx Point: The CPU has no PWM pin and sends the PWM duty-cycle setting to the PCH. The PCH can choose to ignore that and use its own setting (BLM_PCH_OVERRIDE_ENABLE). We use the CPU setting on these platforms. o Lynx Point + Haswell: The CPU has an additional PWM pin but can be set up to send its setting to the PCH as before. The PCH can still choose to ignore that. We use the CPU setting with Haswell. o Lynx Point + Broadwell: The CPU can't send its setting to the PCH anymore. BLM_PCH_ OVERRIDE_ENABLE must always be set(!) if the PCH PWM pin is used (it virtually always is). We have to use the PCH setting in this case. o After Lynx Point: Same as with Broadwell, only BLM_PCH_OVERRIDE_ENABLE is implied and the bit not implemented anymore. Change-Id: I1d61d9b3f1802ebe18799fc4d06f1f1d3b54c924 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35897 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
2019-10-08 20:24:05 +02:00
# Set backlight PWM value for eDP
register "gpu_pch_backlight_pwm_hz" = "200"
# Set panel power delays
register "gpu_panel_power_cycle_delay" = "6" # 500ms
register "gpu_panel_power_up_delay" = "2000" # 200ms
register "gpu_panel_power_down_delay" = "500" # 50ms
register "gpu_panel_power_backlight_on_delay" = "2000" # 200ms
register "gpu_panel_power_backlight_off_delay" = "2000" # 200ms
device cpu_cluster 0 on
device lapic 0 on end
end
device domain 0 on
device pci 00.0 on end # host bridge
device pci 02.0 on end # vga controller
device pci 03.0 on end # mini-hd audio
# chip soc/intel/broadwell/pch
# EC host command ranges are in 0x380-0x383 & 0x80-0x8f
register "gen1_dec" = "0x00000381"
register "gen2_dec" = "0x000c0081"
device pci 13.0 off end # Smart Sound Audio DSP
device pci 14.0 on end # USB3 XHCI
device pci 15.0 off end # Serial I/O DMA
device pci 15.1 off end # I2C0
device pci 15.2 off end # I2C1
device pci 15.3 off end # GSPI0
device pci 15.4 off end # GSPI1
device pci 15.5 off end # UART0
device pci 15.6 off end # UART1
device pci 16.0 off end # Management Engine Interface 1
device pci 16.1 off end # Management Engine Interface 2
device pci 16.2 off end # Management Engine IDE-R
device pci 16.3 off end # Management Engine KT
device pci 17.0 off end # SDIO
device pci 19.0 off end # GbE
device pci 1b.0 on end # High Definition Audio
device pci 1c.0 on end # PCIe Port #1
device pci 1c.1 off end # PCIe Port #2
device pci 1c.2 off end # PCIe Port #3 - LAN
device pci 1c.3 on end # PCIe Port #4 - WiFi
device pci 1c.4 on end # PCIe Port #5
device pci 1c.5 on end # PCIe Port #6 - M.2 NVMe
device pci 1d.0 off end # USB2 EHCI
device pci 1e.0 off end # PCI bridge
device pci 1f.0 on end # LPC bridge
device pci 1f.2 on end # SATA Controller
device pci 1f.3 on end # SMBus
device pci 1f.6 off end # Thermal
# end
end
end