BUG=none
BRANCH=none
TEST=none
Change-Id: I7488d471b8e4c4a5fb8ea79302a1b39eee1e3333
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: bddf86a259
Original-Change-Id: I5fcc83328441ccfb34ee63a7406d26e393633c21
Original-Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/19685
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Philippe Mathieu-Daud <philippe.mathieu.daude@gmail.com>
Original-Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://chromium-review.googlesource.com/506198
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
BUG=none
BRANCH=none
TEST=none
Change-Id: I01428c56e7e416f191c07278e1241ef43e7a5d9f
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 2a59a44416
Original-Change-Id: I0eff29b74d7df331dcbf2c25799eaae4911e54fc
Original-Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/13749
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://chromium-review.googlesource.com/506223
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Probe RAM to find its size instead of hardcoding 1024M.
Also properly export it to memory map.
BUG=none
BRANCH=none
TEST=none
Change-Id: I145291ef63afe8856e4a958f97853680f24af54d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: 7723133073
Original-Change-Id: Ib411f0a068bd247a9e0cd0a59689a3896921483e
Original-Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/13754
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://chromium-review.googlesource.com/506213
Commit-Ready: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Doing PCI config operations via MMIO window by default is a
requirement, if supported by the platform. This means chipset
or CPU code must enable MMCONF operations early in bootblock
already, or before platform-specific romstage entry.
Platforms are allowed to have NO_MMCONF_SUPPORT only in the
case it is actually not implemented in the silicon.
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Kysti Mlkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17693
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: Id4d9029dec2fe195f09373320de800fcdf88c15d
Reviewed-on: https://chromium-review.googlesource.com/417953
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
These functions will allow us to remove hardcodes,
as long as we can verify the qemu and lowrisc targets
implement the configstring correctly. Hence, for the
most part, we'll start with mainboard changes first.
Define a new config variable, CONFIG_RISCV_CONFIGSTRING,
which has a default value that works on all existing
systems but which can be changed
as needed for a new SOC or mainboard.
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/17256
Tested-by: build bot (Jenkins)
Reviewed-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Change-Id: I7dd3f553d3e61f1c49752fb04402b134fdfdf979
Reviewed-on: https://chromium-review.googlesource.com/411480
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Note that currently, traps are only handled by the trap handler
installed in the bootblock. The romstage and ramstage don't override it.
TEST=Booted emulation/spike-qemu and lowrisc/nexys4ddr with a linux
payload. It worked as much as before (Linux didn't boot, but it
made some successful SBI calls)
BUG=None
BRANCH=None
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/17057
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Change-Id: Icce96ab3f41ae0f34bd86e30f9ff17c30317854e
Reviewed-on: https://chromium-review.googlesource.com/408956
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
It's a better default than QEMU-armv7, which is currently the default
board when coreboot is configured for the first time, because most
coreboot development targets x86.
With this patch, the minimal steps to coreboot+SeaBIOS booting in QEMU
become:
git clone https://review.coreboot.org/coreboot.git && cd coreboot
make crossgcc-x86
make olddefconfig && make
qemu-system-x86_64 -bios build/coreboot.rom
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/16987
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Change-Id: Ie44a5d95547a55df93f29082c3b5a86fb83aa1e7
Reviewed-on: https://chromium-review.googlesource.com/402696
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This version of coreboot successfully starts a Harvey (Plan 9) kernel as a payload,
entering main() with no supporting assembly code for startup. The Harvey port
is not complete so it just panics but ... it gets started.
We provide a standard payload function that takes a pointer argument
and makes the jump from machine to supervisor mode;
the days of kernels running in machine mode are over.
We do some small tweaks to the virtual memory code. We temporarily
disable two functions that won't work on some targets as register
numbers changed between 1.7 and 1.9. Once lowrisc catches up
we'll reenable them.
We add the PAGETABLES to the memlayout.ld and use _pagetables in the virtual
memory setup code.
We now use the _stack and _estack from memlayout so we know where things are.
As time goes on maybe we can kill all the magic numbers.
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/17058
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Change-Id: I6caadfa9627fa35e31580492be01d4af908d31d9
Reviewed-on: https://chromium-review.googlesource.com/402383
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
spike_util.h:
- (LOG_)REGBYTES and STORE are already defined in
arch/riscv/include/bits.h.
- TOHOST_CMD, FROMHOST_* are helper macros for the deprecated
Host-Target Interface (HTIF).
qemu_util.c:
- mcall_query_memory now uses mprv_write_ulong instead of first
translating the address and then accessing it normally. Thus,
translate_address isn't used anymore.
- Several functions used the deprecated HTIF CSRs mtohost/mfromhost.
They have mostly been replaced by stub implementations.
- htif_interrupt and testPrint were unused and have been deleted.
spike_util.c:
- translate_address and testPrint were unused and have been deleted.
After this commit, spike_util.c and qemu_util.c are exactly the same and
can be moved to a common location.
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/16985
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Change-Id: I1789bad8bbab964c3f2f0480de8d97588c68ceaf
Reviewed-on: https://chromium-review.googlesource.com/400102
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Not all SBI calls are implemented, but it's enough to see a couple dozen
lines of Linux boot output.
It should also be noted that the SBI is still in flux:
https://groups.google.com/a/groups.riscv.org/forum/#!topic/sw-dev/6oNhlW0OFKM
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/16119
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Change-Id: I80e4fe508336d6428ca7136bc388fbc3cda4f1e4
Reviewed-on: https://chromium-review.googlesource.com/374464
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This aligns the code in qemu-riscv with the code in spike-riscv.
The previous code gives an error in the updated toolchain as the
send_ipi CSR is no longer valid.
This gave the build error:
src/mainboard/emulation/qemu-riscv/qemu_util.c:64:
Error: Instruction csrw requires absolute expression
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16244
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Change-Id: Iac0f66e8e9935f45c8094d5e16bedb7ac5225424
Reviewed-on: https://chromium-review.googlesource.com/373242
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Almost all boards and chipsets within the codebase assume or
use SPI flash as the boot device. Therefore, provide an option
for the boards/chipsets which don't currently support SPI flash
as the boot device. The default is to assume SPI flash is the
boot device unless otherwise instructed. This falls in line
with the current assumptions, but it also allows one to
differentiate a platform desiring SPI flash support while it not
being the actual boot device.
One thing to note is that while google/daisy does boot with SPI
flash part no SPI API interfaces were ever implemented. Therefore,
mark that board as not having a SPI boot device.
BUG=chrome-os-partner:56151
BRANCH=None
TEST=None
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16191
Reviewed-by: Furquan Shaikh <furquan@google.com>
Change-Id: Id4e0b4ec5e440e41421fbb6d0ca2be4185b62a6e
Reviewed-on: https://chromium-review.googlesource.com/373024
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Since commit 3bfd7cc (drivers/pc80: Rework normal / fallback selector
code) the reboot counter stored in `reboot_bits` isn't reset on a reboot
with `boot_option = 1` any more. Hence, with SKIP_MAX_REBOOT_CNT_CLEAR
enabled, later stages (e.g. payload, OS) have to clear the counter too,
when they want to switch to normal boot. So change the bits to (h)ex
instead of (r)eserved.
To clarify their meaning, rename `reboot_bits` to `reboot_counter`. Also
remove all occurences of the obsolete `last_boot` bit that have sneaked
in again since 24391321 (mainboard: Remove last_boot NVRAM option).
BUG=None
BRANCH=None
TEST=None
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/16157
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-by: York Yang <york.yang@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Change-Id: Ib3fc38115ce951b75374e0d1347798b23db7243c
Reviewed-on: https://chromium-review.googlesource.com/371504
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Martin Roth <martinroth@chromium.org>
mb() is used in src/arch/riscv/ and src/mainboard/emulation/*-riscv/.
It is currently provided by atomic.h, but I think it fits better into
barrier.h.
The "fence" instruction represents a full memory fence, as opposed to
variants such as "fence r, rw" which represent a partial fence. An
operating system might want to use precisely the right fence, but
coreboot doesn't need this level of performance at the cost of
simplicity.
BUG=None
BRANCH=None
TEST=None
Change-Id: I415c642941471bc3bf99bfeeb235cfaef7e247fe
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/15830
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://chromium-review.googlesource.com/367373
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
This removes the newlines from all files found by the new
int-015-final-newlines script.
BUG=None
BRANCH=None
TEST=None
Change-Id: I89fcb55ff285e4793d7f057f684187359334cb70
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/15975
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://chromium-review.googlesource.com/366218
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
The HTIF is deprecated and the newest RISC-V binutils don't know the
mtohost/mfromhost CSRs anymore.
The SBI implementation still needs to be restructured.
Change-Id: I13f01e45b714f1bd919e27b84aff8db772504b1f
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/15289
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Reviewed-on: https://chromium-review.googlesource.com/360206
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
RAM doesn't need any initialization on qemu, so we can simply use it
right away. No need to try using the cache as ram in the first place.
We also can place the stack in normal ram right from start and we
don't have to switch it to another place later on. Place the stack
in real mode memory which isn't used for something else.
Change-Id: Ib7a3f58a846d139f7babea5f43722a30fe0fe962
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-on: https://review.coreboot.org/15214
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-by: Kysti Mlkki <kyosti.malkki@gmail.com>
Reviewed-on: https://chromium-review.googlesource.com/354698
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This is where the RAM is (now), on RISC-V.
We need to put coreboot.rom in RAM because Spike (at the moment) only
supports loading code into the RAM, not into the boot ROM.
Change-Id: I6c9b7cffe5fa414825491ee4ac0d2dad59a2d75c
Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/15149
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/354697
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
This Kconfig is deprecated, new platforms need to locate
ramstage stack in CBMEM instead.
Change-Id: I20ece297302321337cc2ce17fdef0c55242a4fc3
Original-Signed-off-by: Kysti Mlkki <kyosti.malkki@gmail.com>
Original-Reviewed-on: https://review.coreboot.org/15189
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Original-Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Original-Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
(cherry-picked from commit bec853e9ad)
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/354180
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Since the HTIF is a non-standard interface, and coreboot already has a
8250 driver, I started implementing an 8250 core for spike[1].
[1]: https://github.com/riscv/riscv-isa-sim/pull/53
BUG=None
BRANCH=None
TEST=None
Change-Id: I84adc1169474baa8cc5837358a8ad3d184cfa51b
Original-Signed-off-by: Jonathan Neuschfer <j.neuschaefer@gmx.net>
Original-Reviewed-on: https://review.coreboot.org/15150
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/352026
Commit-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Change-Id: If4d57c7898c0de20035533dccd4554f45a71d5d1
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/14525
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Instead of manually including udelay_io.c in each romstage,
select UDELAY_IO for all i440BX boards in the chipset.
Change-Id: I411191927f3fba1d0749edcf79378e8013fb195a
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/13781
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Old map does not work on recent qemu. New map puts coreboot to ROM, so
it behave more like most real machines would.
For details on this map see comment in memlayout.ld
Change-Id: If1f3328b511daca32ba93da5a6d44402508b37e9
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: https://review.coreboot.org/13748
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
This builds and produces an image.
The next step is to get a 'halt' instruction into the boot block and then attach with qemu.
I can't get the powerpc64le-linux-gnu-ld.bfd to recognize any output arch but
powerpc. That makes no sense to me.
Change-Id: Ia2a5fe07a1457e7b6974ab1473539c7447d7a449
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/13704
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
On certain Winbond SuperIO devices, when a PS/2 mouse is not
present on the auxiliary channel both channels will cease to
function if the auxiliary channel is probed while the primary
channel is active. Therefore, knowledge of mouse presence
must be gathered by coreboot during early boot, and used to
enable or disable the auxiliary PS/2 port before control is
passed to the operating system.
Add auxiliary channel PS/2 device presence detect, and update
the Winbond W83667HG-A driver to flag the auxiliary channel as
disabled if no device was detected.
Change-Id: I76274493dacc9016ac6d0dff8548d1dc931c6266
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13165
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
These had typos ARM_STAGE_ARM7 instead of ARCH_STAGE_ARM7
Change-Id: Iffe8fecb3e52a50ff02b774478a10c353093688b
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/12660
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
