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2015-04-14CBFS: Automate ROM image layout and remove hardcoded offsetsJulius Werner
Non-x86 boards currently need to hardcode the position of their CBFS master header in a Kconfig. This is very brittle because it is usually put in between the bootblock and the first CBFS entry, without any checks to guarantee that it won't overlap either of those. It is not fun to debug random failures that move and disappear with tiny alignment changes because someone decided to write "ORBC1112" over some part of your data section (in a way that is not visible in the symbolized .elf binaries, only in the final image). This patch seeks to prevent those issues and reduce the need for manual configuration by making the image layout a completely automated part of cbfstool. Since automated placement of the CBFS header means we can no longer hardcode its position into coreboot, this patch takes the existing x86 solution of placing a pointer to the header at the very end of the CBFS-managed section of the ROM and generalizes it to all architectures. This is now even possible with the read-only/read-write split in ChromeOS, since coreboot knows how large that section is from the CBFS_SIZE Kconfig (which is by default equal to ROM_SIZE, but can be changed on systems that place other data next to coreboot/CBFS in ROM). Also adds a feature to cbfstool that makes the -B (bootblock file name) argument on image creation optional, since we have recently found valid use cases for CBFS images that are not the first boot medium of the device (instead opened by an earlier bootloader that can already interpret CBFS) and therefore don't really need a bootblock. BRANCH=None BUG=None TEST=Built and booted on Veyron_Pinky, Nyan_Blaze and Falco. Change-Id: Ib715bb8db258e602991b34f994750a2d3e2d5adf Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: e9879c0fbd57f105254c54bacb3e592acdcad35c Original-Change-Id: Ifcc755326832755cfbccd6f0a12104cba28a20af Original-Signed-off-by: Julius Werner <jwerner@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/229975 Reviewed-on: http://review.coreboot.org/9620 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2015-04-02urara: Fix CBFS header definitionsVadim Bendebury
Urara CBFS header configuration is broken. CBFS header needs to be right above the bootblock, and the CBFS data - 0x100 bytes above, to allow room for proper CBFS wrapper structures. Ideally only the header offset should be specified (and even that could be derived from the bootblock size). But this is a more generic problem to be addressed with different architectures' image layout requirements in mind. BRANCH=none BUG=chrome-os-partner:31438 TEST=coreboot image passes the integrity check now (it was failing before because CBGS header was overlaying the bootblock) $ FEATURES=noclean emerge-urara coreboot $ /build/urara/tmp/portage/sys-boot/coreboot-9999/work/coreboot-9999/build/util/bimgtool/bimgtool \ /build/urara/firmware/coreboot.rom.serial $ cbfstool /build/urara/firmware/coreboot.rom.serial print coreboot.rom.serial: 1024 kB, bootblocksize 9956, romsize 1048576, offset 0x4100 alignment: 64 bytes, architecture: mips Name Offset Type Size fallback/romstage 0x4100 stage 7100 fallback/ramstage 0x5d00 stage 18995 config 0xa780 raw 2452 (empty) 0xb140 null 1003096 Change-Id: Id615bdcc6261dea9f36a409bd90f1e4764353bb9 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 8a0115963aa7460e4c7255ab8508d7d52d67fb67 Original-Change-Id: Id200ab5421661ef39b7c7713e931c39153fdc8be Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/227523 Original-Reviewed-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: http://review.coreboot.org/9187 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2015-03-29mips: add verstage configurationPatrick Georgi
Change-Id: I79b4969c34500fd51b1ce2ad751bc0723ee0afa2 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: http://review.coreboot.org/9147 Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com>
2015-03-21arch/mips: Add base MIPS architecture supportPaul Burton
Add the build infrastructure and basic architectural support required to build for targets using the MIPS architecture. This is sufficient to run on a simulator, but will require the addition of some cache maintenance and timer setup in order to run on real hardware. BUG=chrome-os-partner:31438, chromium:409082 TEST=none yet Change-Id: I027902d8408e419b626d0aab7768bc564bd49047 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: fcc0d934d7223922c878b1f87021cb5c2d7e6f21 Original-Change-Id: If4f99554463bd3760fc142477440326fd16c67cc Original-Signed-off-by: Paul Burton <paul.burton@imgtec.com> Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/207972 Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/8760 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>