gma broxton: Implement DDI PHY power handling
DDI PHYs is a concept common to current Atom processor series. It
seems the PHYs are implemented on the same die as the graphics core
but still need to be configured separately. Based on the assumption
that we start with disabled PHYs and it was always us if they are
enabled, we only have to do a small share of what Linux' i915 does.
v2: Wait for GRC done only if we want to copy its results.
Change-Id: I1e59f80daa08dc64b8c3dff34202ace5dd4c5f73
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/18422
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/common/broxton/Makefile.inc b/common/broxton/Makefile.inc
index c4360ec..90241b2 100644
--- a/common/broxton/Makefile.inc
+++ b/common/broxton/Makefile.inc
@@ -1,3 +1,4 @@
+gfxinit-y += hw-gfx-gma-ddi_phy.adb
gfxinit-y += hw-gfx-gma-ddi_phy.ads
gfxinit-y += hw-gfx-gma-plls.adb
gfxinit-y += hw-gfx-gma-plls.ads