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Add GENERIC_UDELAY Kconfig option so that a generic
udelay() implementation is provided utilizing the
monotonic timer. That way each board/chipset doesn't
need to duplicate the same udelay(). Additionally,
assume that GENERIC_UDELAY implies init_timer()
is not required.
BUG=None
BRANCH=None
TEST=Built nyan, ryu, and rambi. May need help testing.
Change-Id: I7f511a2324b5aa5d1b2959f4519be85a6a7360e8
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1a85fbcad778933d13eaef545135abe7e4de46ed
Original-Change-Id: Idd26de19eefc91ee3b0ceddfb1bc2152e19fd8ab
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/219719
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9334
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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C0 is a coprocessor register set defined in certain MIPS
architectures. This patch adds macros necessary to access the
registers and a couple of helper macros to access two particular
registers needed in the next patch.
The definitions come straight from arch/mips/include/asm/mipsregs.h in
the 3.14 kernel tree.
BRANCH=none
BUG=chrome-os-partner:31438
TEST=the following patch demonstrates timer counter C0 register
configuration and use.
Change-Id: Ia5d52ffa75f2dd66d4cee3a4ed0af5122ccb2113
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: eb3d69eaf1561ca0b995720c24dafe2e6e22707d
Original-Change-Id: Ia4b1da40ecc1a03cf1cba0c648d42cd189fbcf93
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/227887
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9336
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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With kconfig understanding wildcards, we don't need
Kconfig files that just include other Kconfig files
anymore.
Change-Id: I7584e675f78fcb4ff1fdb0731e340533c5bc040d
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: http://review.coreboot.org/9298
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
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This patch creates a new mechanism to define the static memory layout
(primarily in SRAM) for a given board, superseding the brittle mass of
Kconfigs that we were using before. The core part is a memlayout.ld file
in the mainboard directory (although boards are expected to just include
the SoC default in most cases), which is the primary linker script for
all stages (though not rmodules for now). It uses preprocessor macros
from <memlayout.h> to form a different valid linker script for all
stages while looking like a declarative, boilerplate-free map of memory
addresses to the programmer. Linker asserts will automatically guarantee
that the defined regions cannot overlap. Stages are defined with a
maximum size that will be enforced by the linker. The file serves to
both define and document the memory layout, so that the documentation
cannot go missing or out of date.
The mechanism is implemented for all boards in the ARM, ARM64 and MIPS
architectures, and should be extended onto all systems using SRAM in the
future. The CAR/XIP environment on x86 has very different requirements
and the layout is generally not as static, so it will stay like it is
and be unaffected by this patch (save for aligning some symbol names for
consistency and sharing the new common ramstage linker script include).
BUG=None
TEST=Booted normally and in recovery mode, checked suspend/resume and
the CBMEM console on Falco, Blaze (both normal and vboot2), Pinky and
Pit. Compiled Ryu, Storm and Urara, manually compared the disassemblies
with ToT and looked for red flags.
Change-Id: Ifd2276417f2036cbe9c056f17e42f051bcd20e81
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: f1e2028e7ebceeb2d71ff366150a37564595e614
Original-Change-Id: I005506add4e8fcdb74db6d5e6cb2d4cb1bd3cda5
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/213370
Reviewed-on: http://review.coreboot.org/9283
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at>
Reviewed-by: Aaron Durbin <adurbin@google.com>
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This allows combining and simplifying linker scripts.
This is inspired by the commit listed below, but rewritten to match
upstream, and split in smaller pieces to keep intent clear.
Change-Id: Ie5c11bd8495a399561cefde2f3e8dd300f4feb98
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/9303
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
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Instead of keeping this separate variable around, add linker scripts
to the $(class)-y source lists and let the build system sort things out.
This is inspired by the commit listed below, but rewritten to match
upstream, and split in smaller pieces to keep intent clear.
Change-Id: I4af687becf2971e009cb077debc902d2f0722cfb
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/9289
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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Instead of having different structures for loading
ramstage and payload align to using struct prog.
This also removes arch_payload_run() in favor of
the prog_run() interface.
Change-Id: I31483096094eacc713a7433811cd69cc5621c43e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8849
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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The prog_run() function abstracts away what is required
for running a given program. Within it, there are 2
calls: 1. platform_prog_run() and 2. arch_prog_run().
The platform_prog_run() allows for a chipset to intercept
a program that will be run. This allows for CPU switching
as currently needed in t124 and t132.
Change-Id: I22a5dd5bfb1018e7e46475e47ac993a0941e2a8c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8846
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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The struct prog serves as way to consolidate program
loading. This abstraction can be used to perform more
complicated execution paths such as running a program
on a separate CPU after it has been loaded. Currently
t124 and t132 need to do that in the boot path. Follow
on patches will allow the platform to decide how to
execute a particular program.
Note: the vboot path is largely untouched because it's
already broken in the coreboot.org tree. After getting
all the necessary patches pushed then vboot will be
fixed.
Change-Id: Ic6e6fe28c5660fb41edee5fd8661eaf58222f883
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/8839
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Marc Jones <marc.jones@se-eng.com>
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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)
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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>
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Change-Id: Id7f438a95fc7c7b41ce3d0fb419b0b455f8367a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: http://review.coreboot.org/9167
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
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This replicates commit 3f7ad7b216b4021c7cb93201a94b0fae46f5e19e and
commit 823edda98e6512d3f455b61549efea6fa68ee2b0 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>
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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>
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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>
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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>
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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>
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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>
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Change-Id: Iaf8167839f8506bd2ab08c2ba9f8317ba2437f28
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reported-by: Paul Menzel
Reviewed-on: http://review.coreboot.org/9054
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
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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>
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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>
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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>
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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>
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