[coreboot-gerrit] Change in ...coreboot[master]: mb/asrock/h110m: Add PEG Gen3 support

[Maxim Polyakov (Code Review)]

Hello Patrick Rudolph, Angel Pons, Paul Menzel, build bot (Jenkins), Patrick Georgi,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/31948

to look at the new patch set (#14).

Change subject: mb/asrock/h110m: Add PEG Gen3 support
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mb/asrock/h110m: Add PEG Gen3 support

This patch adds support PCIe Gen 3 with 8GT/s link speed for PEG x16
slot. All parameters for FSP are set during initialization in
romstage. Now there is no need to additionally configure the FSP
before building the ROM image.

Tested on Intel Core i5-6600 processor with the following devices:
  - LP11000e Fibre Channel HBA (Gen2 x8);
  - PEX8734 PCIe Fabric/Switch (Gen3 x16);
  - NVIDIA GeForce GTX 1060 GPU (Gen3 x16).

GPU works with an nouveau and proprietary driver under Ubuntu 18.04.2
(4.15.0-46-generic GNU/Linux kernel). Discrete graphic card is used
as primary device for display output. Dynamic switching is not yet
supported.

Tianocore (edk2-stable201811-216-g51be9d0) is used as the payload.

Change-Id: Ia4f29df47d76de5069fe53120434cc7c2ab6f044
Signed-off-by: Maxim Polyakov 
---
M src/mainboard/asrock/h110m/devicetree.cb
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/48/31948/14