coreboot Asrock H110 Pro BTC+

[david]

Coreboot mod by our member " walterav " make Asrock H110 Pro BTC+ almost 100% functional.In this new topic we are going to test this mod.

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Onboard I219-V LAN works on Asrock H110 Pro BTC+ !

Compiled own coreboot.rom using all defaults, but edited "devicetree.cb" to mimic older legacy pci definitions with extra disabled 1f.6 location found here look at the end of the file.

https://www.coreboot.org/fossology/?mod ... &item=9156

Code: Select all

end # LPC Interface
		device pci 1f.1 on  end # P2SB
		device pci 1f.2 on  end # Power Management Controller
		device pci 1f.3 on      # Intel HDA
			register "PchHdaVcType" = "Vc1"
		end
		device pci 1f.4 on  end # SMBus
		device pci 1f.5 on  end # PCH SPI
		device pci 1f.6 off end # GbE          <--- Extra port which contains I219-V but disabled
	end
end

While the current devicetree.cb shows "ref" block definitions without mentioning location "1f.6":

https://github.com/coreboot/coreboot/bl ... icetree.cb

Code: Select all

end # chip superio/common

			chip drivers/pc80/tpm
				device pnp 4e.0 on end  # TPM module
			end
		end
		device ref hda		on
			register "PchHdaVcType" = "Vc1"
		end
		device ref smbus	on	end
		device ref fast_spi	on	end
	end
end

So I changed devicetree.cb to:

Code: Select all

end # chip superio/common

			chip drivers/pc80/tpm
				device pnp 4e.0 on end  # TPM module
			end
		end
		device ref hda		on
			register "PchHdaVcType" = "Vc1"
		end
		device ref smbus	on	end
		device ref fast_spi	on	end
		device pci 1f.6		on	end  # <--- enables I219-V onboard
	end
end

I also added the "flashdescription region3 GbE" to the coreboot rom which also used original "Descriptor and ME" regions:

Code: Select all

ifdtool coreboot-1f6pci.rom -i Gbe:flashregion_3_gbe.bin

PCI-E Switch ASM1187e 7-Port PCIe x1 Gen2 Packet Switch detected using these "devicetree.cb" edits:

Code: Select all

..............................
		device ref pcie_rp7	on
			register "PcieRpEnable[6]"			= "1"
			register "PcieRpClkReqSupport[6]"		= "1"
			register "PcieRpClkReqNumber[6]"		= "3"
			register "PcieRpAdvancedErrorReporting[6]"	= "1"
			register "PcieRpLtrEnable[6]"			= "1"
			register "PcieRpClkSrcNumber[6]"		= "3"
			register "PcieRpHotPlug[6]"			= "1"
		end
### original code above ^^^
		device pci 1d.0	on 
			register "PcieRpEnable[8]"			= "1"
			register "PcieRpClkReqSupport[8]"		= "1"
			register "PcieRpClkReqNumber[8]"		= "4"
			register "PcieRpAdvancedErrorReporting[8]"	= "1"
			register "PcieRpLtrEnable[8]"			= "1"
			register "PcieRpClkSrcNumber[8]"		= "4"
			register "PcieRpHotPlug[8]"			= "1"
		end
		device pci 1d.1	on
			register "PcieRpEnable[9]"			= "1"
			register "PcieRpClkReqSupport[9]"		= "1"
			register "PcieRpClkReqNumber[9]"		= "5"
			register "PcieRpAdvancedErrorReporting[9]"	= "1"
			register "PcieRpLtrEnable[9]"			= "1"
			register "PcieRpClkSrcNumber[9]"		= "5"
			register "PcieRpHotPlug[9]"			= "1"
		end
### original code below
		device ref lpc_espi	on
			subsystemid 0x1849 0x1a43

			# Set @0x280-0x2ff I/O Range for SuperIO HWM
			register "gen1_dec" = "0x007c0281"

			# Set LPC Serial IRQ mode
			register "serirq_mode" = "SERIRQ_CONTINUOUS"
....................

lspci

Tested 7 different devices in all the white PCI-E asmedia switched slots at the same time, and some of the network adapters with option roms are even loaded in SeaBIOS and shows numbered PXE boot options besides the SATA/USB ! The OS detects all 7 devices!

Also tested all black 6x pci-e slots with 1X length devices, but the slot called PCIE5 won't detect device, maybe because numbering of PCI devices ends with 06 with that being the ASmedia switch controller...?

IGPU
Also onboard igpu libgfxinit works in text mode in SeaBIOS by just adding "select MAINBOARD_HAS_LIBGFXINIT" to Kconfig file from the onboard DVI connector linked to a HDMI screen. This works for both G4400 Skylake and G3950 Kabylake gpu!

[walterav]

The built-in intel Gbe option ROM can also be included during coreboot build time, by adding the following line to "Kconfig":

select MAINBOARD_USES_IFD_GBE_REGION

From the make menuconfig chipset you can than enable the "Add gigabit ethernet configuration" and give location for the GBE.BIN file just like FD and ME BIN files extracted from the original firmware backup file(ifdtool -x). You may also remove the realtek related stuff from Kconfig since that has no purpose for the H110 Pro BTC+...

[walterav]

IGPU
The graphics initialization for the igpu using "libgfxinit" in "txt mode" and SeaBIOS is compatible with both IGPU and or PCIE 16X slot used GPU from AMD/NVIDIA at the same time. It can show SeaBIOS screen on both devices. Also the G4900T CoffeeLake iGPU works fine!

Using onboard GPU with libgfxinit in UEFI ED2K Tianocore for only the integrated GPU needs the full framebuffer mode setting instead of txt mode. This is however not compatible with PCIE 16X slot used GPU from AMD/NVIDIA. It will blackscreen on the PEG16X inserted GPU's, but after boot of OS it may function.