Hi Andy, Naresh, On Wed, Nov 11, 2020 at 5:10 PM Andy Pont <andy.p...@sdcsystems.com> wrote: > > Naresh wrote… > > Looking at kconfig, the mainboard should select MAINBOARD_HAS_LIBGFXINIT. > For example see "grep -rsn MAINBOARD_HAS_LIBGFXINIT src/" > > I haven't used this, so not sure what else might be needed. > > In order to get the build to progress I have needed to select > MAINBOARD_HAS_LIBGFXINIT and MAINBOARD_USE_LIBGFXINIT. The build now fails > during compilation with:
This means you're going to use libgfxinit instead of a video BIOS. libgfxinit is a graphics modesetting library written in SPARK, a subset of Ada with formal verification properties. You can read more about it here: https://doc.coreboot.org/gfx/libgfxinit.html I've made it work on Whiskey Lake (the immediate predecessor of Comet Lake), but I needed to implement a few workarounds to prevent system lock-ups. My board is a Librem Mini, which does not have an integrated LCD (unlike laptops), so I don't know if the backlight part needs special handling. Here's the relevant changes in Gerrit: https://review.coreboot.org/q/topic:"librem_whl_lgi"; > GCC ramstage/libgfxinit/common/dyncpu/hw-gfx-gma-config.o > hw-gfx-gma-config.ads:19:32: missing operand > Makefile:356: recipe for target > 'build/ramstage/libgfxinit/common/dyncpu/hw-gfx-gma-config.o’ failed > > This feels like a rabbit hold down which I don’t want to find myself! Sounds like the sedprocessor (libgfxinit is configured using some sed-fu to fill in config parameters as constants) replaces `<<GEN>>` (the graphics generation, which is an enumerated type) with an empty string, which is why the compiler complains about a missing operand. > -Andy. > > _______________________________________________ > coreboot mailing list -- coreboot@coreboot.org > To unsubscribe send an email to coreboot-le...@coreboot.org Best regards, Angel _______________________________________________ coreboot mailing list -- coreboot@coreboot.org To unsubscribe send an email to coreboot-le...@coreboot.org
