A branch instruction in a branch delay slot confuses the execution
pipeline and causes an exception.
bootblock.S was written 'by hand', has a branch instruction in branch
delay slot and includes '.set noreorder' directive, which causes it to
crash when trying to branch to main().
Adding a nop instruction fixes the problem. Also adding a nop after
the last branch in the file just in case main() returns and the object
linked next starts with a branch.
BUG=chrome-os-partner:31438
TEST=Running on the simulator can reach main() now
Change-Id: I0882b2eb5ce426f5a311018ffbb6f37a2ca64d98
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/221421
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9183
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Use the run_romstage() API to prevent code duplication
and more maintenance for any API changes or features.
Change-Id: I4122b813cccf4dc0703f256e1245deeeb90deeb9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9172
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This replicates commit 3f7ad7b216 and
commit 823edda98e for mips.
Change-Id: Id97e1fefa20cfa3bcb2cf0336b5a4ff7d9fe813b
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/9166
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
The console interface changed in upstream, and the
driver didn't reflect that yet.
This wasn't obvious because the driver wasn't compiled
at all.
Change-Id: Id18391e62e7ebd8f5fc929838ce27bf414e364f9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/9165
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
The mips Makefile was inherited from x86 and so included lots
of stuff that is necessary on x86 but nowhere else.
That cruft is now gone.
It also adopts the non-x86 approach of handling linker scripts,
hardcoding an include to ldoptions there, instead of manual
concatenation (of just one file plus options).
This is inspired by the commit listed below, but rewritten to match
upstream, and split in smaller pieces to keep intent clear.
Change-Id: Ibf0c7096f9425572d8f83837aa6a253fd91e212c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Based-On-Change-Id: I50af7dacf616e0f8ff4c43f4acc679089ad7022b
Based-On-Signed-off-by: Julius Werner <jwerner@chromium.org>
Based-On-Reviewed-on: https://chromium-review.googlesource.com/219170
Reviewed-on: http://review.coreboot.org/9163
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This is inspired by the commit listed below, but rewritten to match
upstream, and split in smaller pieces to keep intent clear.
Change-Id: I192fa50989b586fd8e967d4c22db56ac9de7a30e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Based-On-Change-Id: I50af7dacf616e0f8ff4c43f4acc679089ad7022b
Based-On-Signed-off-by: Julius Werner <jwerner@chromium.org>
Based-On-Reviewed-on: https://chromium-review.googlesource.com/219170
Reviewed-on: http://review.coreboot.org/9108
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Add the approrpiate car* empty implementations as well as types
included within the rest of coreboot to start building correctly.
Change-Id: Ifaf10281f9a9e28f518f4694630cbffa3f8d187d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9150
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: Aaron Durbin <adurbin@google.com>
Bootblock stack on Danube should be SRAM and defined separately from
the rest of the coreboot stack. The actual coreboot stack will be
defined later.
The top of the stack should be above the bottom, as the stack grows
towards lower addresses.
BUG=chrome-os-partner:31438
TEST=ran bootblock on simulator under codescape, observed stack
properly initialized.
Change-Id: I43d2bae5f85a09a95ca0103b253399bd92555aef
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: e02724cb4b30990ebaa631dabb45917af29d6437
Original-Change-Id: I3c37c8b5a1c0e7fd19411558a8f6d899fc283191
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/218732
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8767
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
With the proper configuration flags enabled, do_printk is available
from src/console, no need to define it elsewhere.
BUG=chrome-os-partner:31438
TEST=with upcoming patches, the urara board coreboot builds fine
Change-Id: I82071b4ca1686639c0bd39c63a06b61cb5bf5571
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 69c655537c50274a61cf123b7fc387ec60dd29c7
Original-Change-Id: Ib1e3e5750cdc1adc509b4580a4f24d3ff3b105ee
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/215862
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8761
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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>
As MIPS toolchain does not provide adequate support for 64 bit
division and shift operations, the missing functions are required to
be provided by the user.
This patch brings in the Linux implementation of the 64 bit arithmetic
shift borrowed from arch/mips/lib/ashldi3.c (eg. Linux v3.14).
BUG=chromium:406038
TEST=With the upcoming patches coreboot successfully builds for MIPS
targets in chroot (coming later).
Change-Id: I2168f69352a9b9e3c5d197489f701a442e65703c
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 8ec616161be8ad3aeb6494e7121615e3329b414d
Original-Change-Id: Ia1ccb29d4c9f3c95e04e06f6af7ce8a00e2e7455
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/214156
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8759
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
