This was used by Ron 13ys ago and was never used again
ever since.
Change-Id: I8ae8a570d67fa0b34b17c9e3709845687f73c724
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/59320
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Commit-Queue: Stefan Reinauer <reinauer@chromium.org>
Reviewed-on: http://review.coreboot.org/4256
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Do not directly check the return value of get_option, but instead compare
the returned value against a CB_CMOS_ error code, or against CB_SUCCESS.
Change-Id: I2fa7761d13ebb5e9b4606076991a43f18ae370ad
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/4266
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Make temporary buffer allocation equal with the allocation in CBMEM and
let copy_console_buffer() handle possible truncation.
When not using dynamic CBMEM the CBMEM area is initialized late in the
ramstage and should be able to hold almost as many characters as the
CBMEM can hold. We have seen 40000 was not always enough with logging
level set to spew, new default size is 0x10000.
Change-Id: If4b143fdf807e28b6766b8b99db5216b767948d5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4295
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
When using dynamic CBMEM the CBMEM area is initialized before
entering ram stage, and so we need a way smaller temporary buffer
for the CBMEM console during early bits of ram stage. In practice
around 256 bytes are needed, but keep the buffer at 1k so we make
sure we don't run out.
TEST=Boot tested on pit
BRANCH=none
BUG=none
Change-Id: I462810b7bafbcc57f8e5f9b1d1f38cfdf85fa630
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: https://chromium-review.googlesource.com/168575
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
[km: cherry-pick 7fd1bbc0 from chromium git]
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4293
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Make sure memcpy target and a possible message telling log was truncated
stay within the allocated region for CBMEM console.
This fixes observed CBMEM corruption on platforms that do not use CBMEM
console during romstage. Those platforms will need an additional fix to
reset cursor position to zero on s3 resume.
Change-Id: I76501ca3afc716545ca76ebca1119995126a43f8
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4292
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
Reviewed-by: Martin Roth <martin.roth@se-eng.com>
Now that there is a clearly defined boot state machine
we can add some useful post codes to indicate the current
point in the state machine by having it log a post code
before the execution of each state.
This removes the currently defined POST codes that were
used by hardwaremain in favor of a new contiguous range
that are defined for each boot state.
The reason for this is that the existing codes are mostly
used to indicate when something is done, which is confusing
for actual debug because POST code debugging relies on knowing
what is about to happen (to know what may be at fault) rather
than what has just finished.
One additonal change is added during device init step as this
step often does the bulk of the work, and frequently logs POST
codes itself. Therefore in order to keep better track of what
device is being initialized POST_BS_DEV_INIT is logged before
each device is initialized.
interrupted boot with reset button and
gathered the eventlog. Mosys has been extended to
decode the well-known POST codes:
26 | 2013-06-10 10:32:48 | System boot | 120
27 | 2013-06-10 10:32:48 | Last post code in previous boot | 0x75 | Device Initialize
28 | 2013-06-10 10:32:48 | Extra info from previous boot | PCI | 00:16.0
29 | 2013-06-10 10:32:48 | Reset Button
30 | 2013-06-10 10:32:48 | System Reset
Change-Id: Ida1e1129d274d28cbe8e49e4a01483e335a03d96
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/58106
Reviewed-on: http://review.coreboot.org/4231
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
When testing Ron's patch on qemu I found out that fill_lb_framebuffer
overwrites size and tag fields. We need either to fix/check all
fill_lb_framebuffer implementations or write tag/size after fill_lb_framebuffer.
I prefer later as it's more robust.
Change-Id: I98f5bac14f65fb4d990cb21426d402b27f2e8a48
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/4263
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
cbfs used u32 in a number of cases where uintptr_t was
correct. This change builds for both 64-bit and 32-bit
boards.
Change-Id: If42c722a8a9e8d565d3827f65ed6c2cb8e90ba60
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: http://review.coreboot.org/4037
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
The code is wrong (it's calling ntohl on an entry point that is actually
already le due to an old cbfs bug) and nothing calls it any more anyway.
Change-Id: Ief2c33faf99e3d2fc410524a5aae7bde378f088b
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-on: http://review.coreboot.org/4090
Tested-by: build bot (Jenkins)
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Many chipset devices require additional configuration after
device init. It is not uncommmon for a device early in the devicetree
list to need to change a setting after a device later in the tree does
PCI init. A final function call has been added to device ops to handle
this case. It is called prior to coreboot table setup.
Another problem that is often seen is that the chipset or mainboard
need to do some final cleanup just before loading the OS. The chip
finalize has been added for this case. It is call after all coreboot
tables are setup and the payload is ready to be called.
Similar functionality could be implemented with the hardwaremain
states, but those don't fit well in the device tree function pointer
structure and should be used sparingly.
Change-Id: Ib37cce104ae41ec225a8502942d85e54d99ea75f
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Reviewed-on: http://review.coreboot.org/4012
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The main usbdebug file lib/usbdebug.c was removed from romstage
build with commit f8bf5a10 but the chipset-specific parts were not,
leading to unresolved symbol errors for AMD platforms.
Add a silent Kconfig variable USBDEBUG_IN_ROMSTAGE for convenient
use of this feature.
Change-Id: I0cd3fccf2612cf08497aa5c3750c89bf43ff69be
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3983
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
As boards without EARLY_CBMEM_INIT do not initialize CBMEM in romstage,
and have no CAR migration, these features are available for ramstage only.
Change-Id: Ic3f77ccdedd4e71ba693619c02c9b98b328a0882
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3970
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Timestamps from cbfs_and_run, TS_START_COPYRAM and TS_END_COPYRAM,
were lost with commit b766b1c7.
Reason is variable ts_table was referencing CAR storage after CAR
is torn doesn. Add use of car_get_var() / car_set_var() so the
references go to migrated storage in CBMEM.
Change-Id: I5a942ad7fd59a04e3a5255f4a3636d37dcfc1591
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3967
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This reverts commit de1fe7f655.
While things appeared to work, there were actually invalid references
to CAR storage after CAR was torn down on boards without
EARLY_CBMEM_INIT. It was discussed use of CAR_GLOBAL should be
restricted to boards that handle CAR migration properly.
Change-Id: I9969d2ea79c334a7f95a0dbb7c78065720e6ccae
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3968
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
If romstage does not make cbmem_initialize() call, linker should
optimize the code for CAR migration away.
This simplifies design of CBMEM console by a considerable amount.
As console buffer is now migrated within cbmem_initialize() call there
is no longer need for cbmemc_reinit() call made at end of romstage.
Change-Id: I8675ecaafb641fa02675e9ba3f374caa8e240f1d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3916
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Assume EARLY_CBMEM_INIT=y everywhere and remove option from Kconfig.
If romstage does not make the cbmem_initialize() call, features like
COLLECT_TIMESTAMPS and early CBMEM_CONSOLE will execute during
romstage, but that data will get lost as no CAR migration is
executed.
Change-Id: I5615645ed0f5fd78fbc372cf5c3da71a3134dd85
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3917
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
These features depend on CAR_GLOBAL region, which is not available
when romstage is built with ROMCC. Exclude these from romstage, keep
them available for ramstage.
A follow-up patch will fix the dependencies and allows enabling these
features in menuconfig.
Change-Id: I9de5ad41ea733655a3fbdc734646f818e39cc471
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3919
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@google.com>
It is not compulsory to have CBMEM console initialised in romstage,
so try add the CBMEM table entry again in ramstage, if not found.
Change-Id: I96ab502df7f05d6bf1d6e6fa84d395ef6306b525
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3915
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@google.com>
We only have one table to collect timestamps into.
Change-Id: I80180fe9a05226f0351c3e66eacaf2d0cb82c924
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3912
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Aaron Durbin <adurbin@google.com>
Some development kits with USB 2.0 HS OTG have an USB hub instead
of being directly connected to the USB host/device controller.
Send the necessary initialisation sequence, using HUB CLASS requests
of PORT_POWER and PORT_RESET to enable a pre-selected port number
where a device supporting debug descriptor is located.
This also adds the Kconfig option for BeagleBone.
Change-Id: I7a5d0ba0962a9ca06bf3196232ed4a03bdfb2b06
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3925
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Clean whitespace errors that have gotten past lint-stable-003-whitespace
and gerrit review.
Change-Id: Id76fc68e9d32d1b2b672d519b75cdc80cc4f1ad9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3920
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Bruce Griffith <Bruce.Griffith@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Old name was too much x86.
All external references have been removed.
Change-Id: I982b9abfcee57a7ea421c245dadb84342949efae
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3906
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
The parameters can be dropped as initialisation always happens for
the region resolved with cbmem_locate_table().
This is no longer referenced externally, make it static.
Change-Id: Ia40350a5232dcbf30aca7b5998e7995114c44551
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3565
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Function is always called with get_top_of_ram() - HIGH_MEMORY_SIZE
which equals cbmem_base, thus no need to pass it as a parameter.
Change-Id: If026cb567ff534716cd9200cdffa08b21ac0c162
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3564
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
AMD northbridges have a complex way to resolve top_of_ram.
Once it is resolved, it is stored in NVRAM to be used on resume.
TODO: Redesign these get_top_of_ram() functions from scratch.
Change-Id: I3cceb7e9b8b07620dacf138e99f98dc818c65341
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3557
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
For both romstage and ramstage, this calls an arch-specific function
get_cbmem_table() to resolve the base and size of CBMEM region. In ramstage,
the result is cached as the query may be relatively slow involving multiple PCI
configuration reads.
For x86 CBMEM tables are located right below top of low ram and
have fixed size of HIGH_MEMORY_SIZE in EARLY_CBMEM_INIT implementation.
Change-Id: Ie8d16eb30cd5c3860fff243f36bd4e7d8827a782
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3558
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
This helper function is for compatibility only for chipsets that do
not implement get_top_of_ram() to support early CBMEM.
Also remove references to globals high_tables_base and _size under
arch/ and from two ARMv7 boards.
Change-Id: I17eee30635a0368b2ada06e0698425c5ef0ecc53
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3902
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@google.com>
If we already initialized EHCI controller and USB device in romstage,
locate active configuration from salvaged CAR_GLOBAL and avoid doing
the hardware initialisation again.
Change-Id: I7cb3a359488b25abc9de49c96c0197f6563a4a2c
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3476
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Change Setup Stage of control messages to have no retries, while data
and status stages may retry until timing out after 1000 retries.
The correct amount of retries might vary by endpoint and device dongle
used, so make it a variable.
Change-Id: I63313f994d0bd3444a3aab527ca942da5de9e6fa
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3882
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Transaction consistently completes with 80 to 150 status reads on my
setups. Hardware should always be able to complete this within 125us
as the debug port is serviced at the beginning of each microframe.
Timeout is set to DBGP_MICROFRAME_TIMEOUT_LOOPS=1000 status reads. Do not
retry transactions if this timeout is reached as the host controller
probably needs full re-initialisation to recover.
If this timeout is not reached, but a transaction is corrupted
on the wire, or it is otherwise not properly delivered to the USB device,
transaction is retried upto DBGP_MICROFRAME_RETRIES=10 times.
Change-Id: I44bc0a1bd194cdb5a2c13d5b81fc39bc568ae054
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3881
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
It wasn't even hooked up to the build system anymore.
Change-Id: I4b962ffd945b39451e19da3ec2f7b8e0eecf2e53
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/3892
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Add support for control messages with a write of data stage.
Add status stage after a read of non-zero length data stage.
Do not retry control message if device responds with STALL.
Change-Id: I16fb9ae39630b975af5461b63d050b9adaccef0f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3867
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
USB defines a mechanism to detect certain cases of lost handshakes
using an alternating data sequence number, referred to as data
toggling. This patch fixes each pipe to have its own tracking of
the data toggle state.
Change-Id: I62420bdaeadd0842da3189428a37eeb10c646900
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3865
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Add allocation for endpoint0 as a pipe for control messages.
Endpoint number was already stored in the pipe object, place devnum
there too, although all pipes will use same devnum==127.
Change-Id: I299d139bdd8083af8b04a694e8e41435ec026a25
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3864
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Nowadays, chipsets or boards do not only have one USB port with the
capabilities of a debug port but several ones. Some of these ports are
easier accessible than others, so making them configurable is also necessary.
This change adds infrastructure to switch between EHCI controllers,
but does not implement it for any chipset.
Change-Id: I079643870104fbc64091a54e1bfd56ad24422c9f
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3438
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
On AMD platforms, setting of USBDEBUG_DEFAULT_PORT=0 tries to scan
all physical ports one after other in incrementing order. To avoid
possible problems with other USB devices, one can select the port
number here and bypass the scan.
Intel platforms can communicate with usbdebug dongle on one
physical port only, and this option makes no difference there.
Change-Id: I45be6cc3aa91b74650eda2d444c9fcad39d58897
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3872
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
After an USB device sees USB bus reset on the bus, it will reset to
device number 0. Per the EHCI debug port specification, a debug
dongle device may reset to the fixed debug device number of 127 instead.
Thus there is no need to try device numbers from 1 to 126.
Do a sanity-check on a returned debug descriptor as I experienced
some USB flash memory to respond on this request with zero-fill data.
Change-Id: I78d58f3dc049cd8c20c6e2aa3a4207ad7e6a6d33
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3861
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>
Resetting an EHCI controller when it is not halted can have
undefined behaviour. This mostly fixes a case where calling
usbdebug_init() twice would fail to reset the USB dongle device
properly.
On amd/persimmon it still requires one extra retry, but at least it
is now possible to have usbdebug enabled for both romstage and
ramstage.
Change-Id: Ib0e6e5a0167404f68af2edf112306fdb8def0be9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3862
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Letting SMI handler touch EHCI controller is an excellent source
of USB problems. Remove usbdebug entirely from SMM.
It may be possible to make usbdebug console work from SMM
after hard work and coordination with payloads and even
OS drivers. But we are not there.
Change-Id: Id50586758ee06e8d76e682dc6f64f756ab5b79f5
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3858
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
This quirk is needed with a DIY debug dongle using obsolete
CY7C68013 (aka FX2) USB chips. Old revision of chip requires a
SET_CONFIGURATION to be sent, while this is not required in EHCI
debug port specs.
Change-Id: I4926eb19b7e991d6efeef782682756571ad006b9
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3386
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
When we create low-level debugging of EHCI controller registers,
we call printk() within printk(). In ramstage this would leave us
with deadlock waiting on the console spinlock.
Change-Id: Idbe029af9af76de27094bb2964c60d9ccfdd96e6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3860
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Stefan Reinauer