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2023-09-02coreboot/e6400: support nvidia modelsLeah Rowe
The same ROM images that you flash on Intel GPU variants, are now flashed on Nvidia models. The same ROM will work on both. If an Intel GPU variant is present, libgfxinit is used, and the VGA ROM is used if an Nvidia GPU variant; however, release ROMs will scrub the nvidia option ROM, so release ROMs will only work on Intel GPUs unless you run the blobutil inject command. I decided to no longer have this under WIP, but to put it in master. The issue with it pertains to video drivers, which is not Libreboot's problem. Nouveau crashes under Linux, so use "nomodeset" if it does. The "nv" drivers in BSD systems work very well. The nvidia model of E6400 isn't recommended for other reasons, namely: poor thermal cooling (thermal pad on the GPU) and that Nvidia GPU doesn't get very good performance on any libre drivers anyway. The Intel GPU variant is better, in terms of power efficiency and software support; the intel variant also works with native graphics initialisation in coreboot. This board port already only enables SeaBIOS, which will simply execute the VGA ROM. Blobutil already supports reading the config, detecting that a VGA ROM is needed, because that part of the WIP E6400 branch was already merged in lbmk master. Signed-off-by: Leah Rowe <leah@libreboot.org>
2023-08-16merge coreboot/u-boot download logic to one scriptLeah Rowe
they are fundamentally the same, in an lbmk context. they are downloaded in the same way, and compiled in the same way! (Kconfig infrastructure, board-specific code, the way submodules are used in git, etc) ~200 sloc reduction in resources/scripts the audit begins Signed-off-by: Leah Rowe <leah@libreboot.org>
2023-08-06coreboot/default: bump revision to 2 August 2023Leah Rowe
coreboot revision: d86260a134575b083f35103e1cd5c7c7ad883bce from 2 August 2023 The patches were updated. HP 8300 USDT has now been merged upstream, so that patch is no longer included in lbmk. SD card fix for E6400 merged upstream, so now it's removed in lbmk. The nvidia E6400 patch (devicetree.cb) has not yet merged upstream. The ifdtool --nuke option has been rebased. Patches as follow-ups to earlier patches removed; for example, patches that set VRAM to 352MB on GM45 have been removed, and replaced with patches that just set 256MB in the first place (this is more stable). This was mostly a clean rebase, of all the patches. It went smooth. I haven't updated cros/haswell yet; the 4.11_branch revision used on fam15h will also remain, for now. The coreboot configurations have been updated, for this new revision of coreboot. Signed-off-by: Leah Rowe <leah@libreboot.org>
2023-06-19build/boot/roms: Support removing microcodeLeah Rowe
From now on, the following rules are available for all mainboards, in resources/coreboot/boardname/board.cfg: * blobs_required="n" or "y" * microcode_required="n" or "y" The blobs setting, if set to "n", simply renames filename.rom to filename_noblobs.rom. The microcode setting, if set to "n", copies the ROM (with or without _noblobs) to filename_nomicrocode.rom (if blobs="n", it would be filename_noblobs_nomicrocode.rom). Where "nomicrocode" is set, ROMs with microcode will still be provided by lbmk and in relesase, but ROMs will also be provided alongside it that lacks any microcode updates. If the *original* ROM already lacks microcode updates, then the original ROM will be *renamed* to include "nomicrocode" in the name. This is done on images for ARM platforms, for instance, where microcode is never used whatsoever. Example filenames now generated: seabios_e6400_4mb_libgfxinit_corebootfb_noblobs_nomicrocode.rom seabios_e6400_4mb_libgfxinit_corebootfb_noblobs.rom seabios_withgrub_hp8300usdt_16mb_libgfxinit_corebootfb_colemak_nomicrocode.rom seabios_withgrub_hp8300usdt_16mb_libgfxinit_corebootfb_colemak.rom uboot_payload_gru_kevin_libgfxinit_corebootfb_noblobs_nomicrocode.rom A vocal minority of people were not happy with some of the changes made in Libreboot last year, including on existing supported hardware from before those changes were made. I did this before the last release, out of respect: https://libreboot.org/news/gm45microcode.html (re-add mitigations for no-microcode setup on GM45) This new change is done as an further, extended courtesy. Tested and works fine. (testing using cbfstool-print) Actual Libreboot policy about binary blobs is nuanced. See: https://libreboot.org/news/policy.html (reduction policy) and: https://libreboot.org/freedom-status.html (implementation) Well, the status page talks about descriptor vs non-descriptor on Intel platforms, and where me_cleaner is used (on platforms that need Intel ME firmware), it regards the descriptored setups to be blob-free if coreboot does not require binary blobs. In this paradigm, microcode updates are not considered to be binary blobs, because they aren't technically software, they're more like config files that just turn certain features on or off within the CPU. However, for lbmk purposes, "noblobs" means that, after the ROM is fully ready to flash on the chip, there will be no blobs in it (except microcode). So for example, an X200 that does not require ME firmware is considered blob-free under this paradigm, even though Libreboot policy regards X230 as equally libre when me_cleaner is used; in this setup, ROMs will not contain "blobfree" in the filename, for X230 (as one example). Signed-off-by: Leah Rowe <leah@libreboot.org>
2023-04-20Re-disable GRUB payload for E6400Nicholas Chin
This reverts commit fe2b72035fb58d2c0792daa62aa346da710f04a3. The GRUB patch to fix the E6400 broke other systems and has been reverted. As a result, GRUB needs to be disabled again on the E6400 until a better fix has been created.
2023-04-20Revert "Fix GRUB handling of the E6400 keyboard"Nicholas Chin
This reverts commit 1497ae045104145de677fd151da4de6e92be4e5a. The blanket GRUB patch seems to break PS/2 keyboard handling across other platforms, so revert it.
2023-04-19Revert "dell/e6400: disable grub payload"Nicholas Chin
This reverts commit 7bc4dc32ac3e430e50ace3a2876cf501f647b89f. The E6400 keyboard should work in GRUB now so we can reenable it.
2023-04-19Fix GRUB handling of the E6400 keyboardNicholas Chin
This introduces a patch to grub which disables the coreboot specific handling, allowing PS/2 keyboards to be handled the same as i386-pc. However this alone breaks the keyboard in Linux, requiring coreboot to perform PS/2 initialization. I think GRUB may be restoring the original configuration of the PS/2 controller once it exits, and if coreboot doesn't initialize the controller then it's restored to the default state which Linux doesn't seem to like. I think the emulated keyboard interface provided by the EC on the E6400 behaves in a non-standard way that is incompatible with the old coreboot specific handling.
2023-04-19dell/e6400: disable grub payloadLeah Rowe
ps/2 internal keyboard faulty in grub target i386-coreboot, according to nic3-14159 normal i386-pc grub (bios grub) is fine, booted from seabios it is being investigated
2023-04-19Add configs for the Latitude E6400Nicholas Chin
Tested the 4MiB ROMs but not the 8 or 16 MiB ones. This uses the same board.cfg as the GM45 ThinkPads with an IFD+GBE from ich9gen. Known issues: - The internal keyboard does not work properly in GRUB. It seems like the keyboard controller is outputing set 1 (XT) scancodes, but GRUB is interpreting them as set 2 (AT) scancodes. This may also have something to do with scancode translation. However, the keyboard works fine in SeaBIOS and Linux. USB keyboards also work properly. - The subsystem IDs in the GBE region are hardcoded for a Thinkpad in ich9gen, though this doesn't seem to cause issues in Linux. The vendor IFD and GBE region do have some differences from the generated binaries, though they do not appear to be critical.