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drivers/intel/gma: Hook up libgfxinit

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Add `libgfxinit` as another option for native graphics initialization.
For that, the function gma_gfxinit() (see drivers/intel/gma/i915.h) has
to be called by the respective northbridge/soc code.

A mainboard port needs to select `CONFIG_MAINBOARD_HAS_LIBGFXINIT` and
implement the Ada package `GMA.Mainboard` with a single function `ports`
that returns a list of ports to be probed for displays.

v2: Update 3rdparty/libgfxinit to its latest master commit to make
    things buildable within coreboot.

v3: Another update to 3rdparty/libgfxinit. Including support to select
    the I2C port for VGA.

Change-Id: I4c7be3745f32853797d3f3689396dde07d4ca950
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/16952
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Nico Huber 2016-10-05 17:47:32 +02:00 • committed by Nico Huber
commit 542e9488bd
7 changed files with 256 additions and 2 deletions
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19
src/device/Kconfig
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@ -24,7 +24,7 @@ config MAINBOARD_HAS_NATIVE_VGA_INIT
# FIXME Ugly hack to allow Z9s driver native framebuffer configuration
config NATIVE_VGA_INIT_USE_EDID
bool
default n if DRIVERS_XGI_Z9S
default n if DRIVERS_XGI_Z9S || MAINBOARD_USE_LIBGFXINIT
default y if !DRIVERS_XGI_Z9S
config MAINBOARD_HAS_NATIVE_VGA_INIT_TEXTMODECFG
@ -42,6 +42,23 @@ config MAINBOARD_DO_NATIVE_VGA_INIT
If unsure, say N.
config MAINBOARD_HAS_LIBGFXINIT
def_bool n
select MAINBOARD_HAS_NATIVE_VGA_INIT
help
Selected by mainboards that implement support for `libgfxinit`.
Usually this requires a list of ports to be probed for displays.
config MAINBOARD_USE_LIBGFXINIT
bool "Use libgfxinit for native graphics initialization"
depends on MAINBOARD_DO_NATIVE_VGA_INIT
depends on MAINBOARD_HAS_LIBGFXINIT
select RAMSTAGE_LIBHWBASE
default n
help
Use the SPARK library `libgfxinit` for the native graphics
initialization. This requires an Ada toolchain.
# TODO: Explain differences (if any) for onboard cards.
config VGA_ROM_RUN
bool "Run VGA Option ROMs"