[coreboot-gerrit] Change in libgfxinit[master]: gma skl: Implement CDClk switching

[Nico Huber (Code Review)]

Hello Arthur Heymans, Matt DeVillier, Thomas Heijligen,

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

https://review.coreboot.org/c/libgfxinit/+/35614

to look at the new patch set (#3).

Change subject: gma skl: Implement CDClk switching
......................................................................

gma skl: Implement CDClk switching

Flow is roughly the same as for Broadwell. Maximum CDClk is now
completely controlled by fuses, though. The same frequencies are
supported and dot clocks can run at full CDClk speed.

Change-Id: Ic14cf5981540d36d3f337a43bbec3574be0d3c99
Signed-off-by: Nico Huber 
---
M common/hw-gfx-gma-registers.ads
M common/skylake/hw-gfx-gma-power_and_clocks_skylake.adb
M common/skylake/hw-gfx-gma-power_and_clocks_skylake.ads
3 files changed, 117 insertions(+), 34 deletions(-)

git pull ssh://review.coreboot.org:29418/libgfxinit refs/changes/14/35614/3