Libgfxinit provides a better alternative to the native C init. While
libgfxinit mandates an ada compiler, we want to encourage use of it
since it is in much better shape and is actually maintained.
This way libgfxinit also gets build-tested by Jenkins.
Change-Id: I4843f52307b87cff6fa6f4d0c74b87428fefa8ac
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/26967
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Port the ACPI opregion implementation that resides in
drivers/intel/gma to older platforms.
It allows to include a vbt.bin and allows GNU/Linux to load the
opregion as ASLS is being set.
Windows' Intel will likely ignore it as it relies on legacy VBIOS
to be loaded at 0xc0000.
Tested successfully on DG43GT (x4x) with vbt.bin,
with X200 (gm45) with vendor option rom and
D945GCLF (i945) with fake vbt.
Change-Id: I1896411155592b343e48cbd116e2f70fb0dbfafa
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/21766
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This allows the use of the native VGA init on boards featuring DVI-I
ports. Digital output is not supported.
Change-Id: I11a4dd68746e06c7e27ecf3e765bdd0d8cf40515
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/20890
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Rename `FRAMEBUFFER_KEEP_VESA_MODE` to `LINEAR_FRAMEBUFFER` and put
it together with new `VGA_TEXT_FRAMEBUFFER` into a choice. There are
two versions of `LINEAR_FRAMEBUFFER` that differ only in the prompt
and help text (one for `HAVE_VBE_LINEAR_FRAMEBUFFER` and one for
`HAVE_LINEAR_FRAMEBUFFER`). Due to `kconfig_lint` we have to model
that with additional symbols.
Change-Id: I9144351491a14d9bb5e650c14933b646bc83fab0
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/19804
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The NGI writes to legacy VGA registers which should not happen when
VGA cycles are assigned to a different device.
TESTED on ga-g41m-es2l
Change-Id: I0a03e35c0d7f2532edd6cc5e62d1cf07dab57f60
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19607
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This disables VGA cycles on IGD when an external VGA device is
found. This allows PCI or PCIe devices to be the 'main' VGA device if
found, while the IGD is still available.
TESTED on ga-g41m-es2l: SeaBIOS shows payload on external GPU while
linux (4.10) can use both as a framebuffer simultaneously without any
extra configuration.
Change-Id: I74890918feb0f1ff6b971c4aaa96f1f7b75266ac
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18504
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Currently only there is only one eaglelake board in coreboot
(ga-g41m-es2l) featuring a G41 variant northbridge.
Adding boards with a different variant (Q43, Q45, G43, G45, B43) will
require this change for graphic initialisation.
Change-Id: Ida32c563a99576b66685dfdadf9a534fd6e197dc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17900
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Those registers are only used on more recent Intel platforms featuring a
PCH. The DP registers on G4X hardware are at a different offset.
Change-Id: I4660e547426ccec0b2095d897e4a8c86e0acf41e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17111
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
This removes writes to FDI related registers since there is no FDI
link on these targets. This is likely a remainder from copying code from
later targets.
TESTED on Thinkpad x200 (gm45)
Change-Id: Id67fdc999185fa184a9ff0e5c3fc9bced04131ad
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16993
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
According to: "Intel ® 965 Express Chipset Family and Intel ® G35 Express
Chipset Graphics Controller PR" the p2 divisor needs to be 10 when the
dotclock is below 225MHz and 5 when its above 225MHz.
Change-Id: I363039b6fd92051c4be4fdc88788f27527645944
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16991
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
This patch implements native resolution, VESA mode, on the VGA output of
x4x.
It relies on EDID to modeset, but has a fallback-mode (640 x 480 @
60Hz) if this is no EDID could be found. This fallback mode only works
in textmode since in VESA mode some payloads (grub2) rely on VBE info,
which is being generated from an EDID.
Change-Id: I247ea7171ba3c5dc3b209d00e4dcb2d2069abd75
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16498
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Padding the VBT id string is now done automatically.
Change-Id: I8f9baf7b1585026bc29b82d07e451aa11e284ffb
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16740
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Boots to console on Gigabyte GA-G41M-ES2L
Ram initialization *not* included in this patch
VGA native init works on analog connector
Change-Id: I5262f73fd03d5e5c12e9f11d027bdfbbf0ddde82
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/11305
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
