Update all Librems except L1UM (but including L1UM v2) to Linux 6.1.8.
Use coreboot native graphics init. Raise maximum framebuffer size for
laptops to 3840x2160 (desktops default to this, but laptops default
to a lower value). Remove DRM modules from Linux 6.1.8 and add EFIFB.
Remove Heads kernel command line options relating to IOMMU and i915,
which are no longer needed. Remove OS kernel options relating to
IOMMU.
For Librem 13/15/14/Mini, this fixes issues booting with 4K displays
attached, which were resulting in crashes due to the framebuffer memory
not being reserved properly. memtest86+ now passes with a 4K display
attached.
For Librem L1UM v2, framebuffer boot now works.
Librem L1UM remains on Linux 5.10 with Heads kernel graphic init
(framebuffer boot still does not work). coreboot 4.11 has native
graphics init for Aspeed, but only in text mode. Backporting the
linear framebuffer support appears to be possible - the patch applied
cleanly - but it did not work initially and will need more
investigation.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
We don't need coreboot to initialize graphics on this boards, this
eliminates some unneeded code and the gnat dependency for them.
Coreboot was using libgfxinit, but it was initializing in text mode.
Heads' kernel will then switch to graphics mode, and we hand that
framebuffer from i915 to the target kernel during kexec.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
Allow leaking the DRM framebuffer pointer to userspace, and disable
framebuffer compression, like librem_15v4.
Tested booting memtest86+ and Debian netinstaller on Mini v2.
Do not enable this for L1UM, it uses Aspeed graphics which still don't
work. qemu uses virtio graphics, which also are not working.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
This makes configs much less dependent on directory layout.
As of this commit the following variables are supported:
* @BOARD_BUILD_DIR@ - absolute path under build/
* @BLOB_DIR@ - absolute path to blobs/
Signed-off-by: Sergii Dmytruk <sergii.dmytruk@3mdeb.com>
