Add an `amdblocks` internal API and rename
soft_reset() => warm_reset()
hard_reset() => cold_reset()
as these terms are commonly used in the surrounding code.
On Stoney Ridge, make board_reset() call cold_reset() to keep
current behaviour of common code calling hard_reset(). But add
a TODO if this is intended.
Note: Stoney Ridge is using CF9 for the actual reset but the
configuration for a cold reset doesn't use the usual full reset
bit but some other mechanism.
Change-Id: Id33eda676d79529db759b85fa8e28386846e6fa4
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/29053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Note, MT8183 didn't select HAVE_HARD_RESET before. So it might still
need an update.
Change-Id: Ic850f2775ada5e6e543ffb92aaa033b9209596f5
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/29051
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Looks like we've got a race condition between commit ce8763fb with
Change-Id I4e3e715106a1a94381a563dc4a56781c35883c2d ("mb/lowrisc: Remove
the Nexys4DDR port") and commit 2e38dbe5 with Change-Id
I5524732f6eb3841e43afd176644119b03b5e5e27 ("riscv: update mtime
initialization"). Let's fix it.
Change-Id: I03c5860b27d04b6e1d7868ba8ea7b52d1075aa6a
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/29165
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Philipp Hug <philipp@hug.cx>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch selects common HDA driver and adds audio controller device id
to enable audio on coffee lake platforms.
BUG= None
TEST= boot to yocto linux and windows os on CFL RVP11 & RVP8, verified audio
functionalities.
Change-Id: I4a60a4d7d8babcd0c14664a304ca81d47c668a6c
Signed-off-by: Praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/29145
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add EMI config to initialize memory.
BRANCH=none
TEST=Boots correctly on Kukui, and inits DRAM successfully with related
patches.
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Change-Id: I945181aa1c901fe78ec1f4478a928c600c1b1dea
Reviewed-on: https://review.coreboot.org/28835
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Phase 1. Due to the size of the effort, this CL is broken into several
phases.
Change-Id: I0236e0960cd1e79558ea50c814e1de2830aa0550
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29065
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Register 0x40 of miscellaneous MMIO is double defined, with different names,
which makes it confusing. Eliminate MISC_MISC_CLK_CNTL_1, and move its only
bit definition to MISC_CLK_CNTL1 (which is correctly placed among MMIO
registers.
BUG=b:117818431
TEST=Build grunt.
Change-Id: I5ca5045498b8a81943282e0d6ecfbaecbd600d19
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29175
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
SPI100_SPEED_CONFIG is double defined. Bits and shift definitions on the
first definition are unused. Remove first definition and its associated
bits and shifts.
BUG=b:117818430
TEST=Build grunt.
Change-Id: I8175b9a2f379b47475a71f93096f682bc56d051c
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29172
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
WIDEIO_RANGE_ERROR and TOTAL_WIDEIO_PORTS are defined twice. Remove the
definitions within MMIO definitions, as wideio is not related to MMIO.
BUG=b:117814228
TEST=Build grunt.
Change-Id: I370a5b387b908fe7a840eb7579d45c1a6a9ca615
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29168
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
The definition DEV_D18F4 is only used once, in file tsc_freq.c, and is
the same as SOC_PM_DEV. Remove the definition, and replace its use in
tsc_freq.c with SOC_PM_DEV.
BUG=b:117754424
TEST=Build and boot grunt.
Change-Id: I9eeeaa084e5b16280713b8b833b4faa78d277586
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29166
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
GPIO control a mux base addresses are defined within MMIO definitions
and again bellow as GPIO specific base addresses. Eliminate those outside
MMIO bases. Rename them to something indicating that they are both MMIO
and related to GPIO.
BUG=b:117754420
TEST=Build grunt.
Change-Id: I53f7cf17d6267e6f8daa650b5f864bab688dc3f0
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29156
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
There's no indication that they are accessed through D0F0. Add a D0F0 header
and move IOAPIC definitions under it. The registers defined to be accessed
through index/data pair should be indented relative to the index/data pair
definition.
BUG=b:117754786
TEST=Build grunt.
Change-Id: If4fb6514bb13f1c944d0e1756d8d9de1f08c99f3
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29155
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
In function smm_setup_structures(), the function name is used in a print
string. Use __func__ instead.
BUG=b:117642170
TEST=Build grunt.
Change-Id: Icac5ea997289ef75fb246a09715cbca4442a57f4
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29154
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Comparison should place the constant on the right side. Southbridge.c has 6
instances where the opposite happens. Reverse the order of six comparisons
to eliminate checkpatch warnings:
WARNING: Comparisons should place the constant on the right side of the test
BUG=b:117656929
TEST=Build grunt.
Change-Id: I94f17b81f845fa94599f93c0be1144ffcb8e4165
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29153
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
File smbus_spd.c has 2 instances of if()/else where the if tests for an
error condition and returns just before the "else" statement. These "else"
statements are not needed.
BUG=b:117648025
TEST=Build and boot grunt.
Change-Id: Ie8298773ae455dbb1125420ec65df24f3c65eb44
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29152
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
In Skylake/Kabylake, if ACPI PM timer is disabled then TCO also gets
disabled & vice versa.
FSP default config for EnableTcoTimer is disabled, this caused ACPI PM
timer & TCO to be disabled by FSP even when config PmTimerDisable = 0.
Thus update FSPS UPD EnableTcoTimer in accordance to devicetree config
PmTimerDisable.
BUG=None
TEST= Build for Soraka with PmTimerDisable=0 & check if TCO caused
reboot after running shell command: cat >> /dev/watchdog0
Change-Id: Ia146761036c9dbaef3c02c9a7122ae3dcdef7bdd
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/29108
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
- CNL PCH-H has 12 GPIO groups which are grouped under 5 gpio communities.
- Add gpio pin definitions for CNP-H and related changes.
- Add gpio device name, host software ownership reg offset for CNP-H.
BUG: none
TEST: build and flash, boot to windows and yocto os on both CFL RVP8 &
RVP11 and verify power management, IO device functionalities
work fine.
Change-Id: I496ec059de125b97c646581bbd3b8bfe6ffa641e
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28890
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Cannon lake PCH-H is added to support coffee lake RVP11 and coffee lake
RVP8 platforms.
- Add new device IDs for LPC, PCIE, PMC, I2C, UART, SMBUS, XHCI, P2SB,
SRAM, AUDIO, CSE0, XDCI, SD, MCH and graphics device.
- Add new device IDs to intel common code respectively.
- Add CPU, LPC, GD, MCH entry to report_platform.c to identify RVP11 & RVP8.
- CNL PCH-H supports 24 pcie root ports and 4 I2C controllers, hence chip.c
is modified accordingly.
- Add board type UserBd UPD to BOARD_TYPE_DESKTOP for both RVP11 & RVP8.
BUG=None
TEST=successfully boot both CFL RVP11 & RVP8, verified all the enabled devices
are enumerated and cross checked devices ids in serial logs and UEFI shell.
Change-Id: I4b6af88d467382250aecb4102878b1c5af92ccd4
Signed-off-by: praveen hodagatta pranesh <praveenx.hodagatta.pranesh@intel.com>
Reviewed-on: https://review.coreboot.org/28718
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch implements SoC-specific defines of mt8183 and links the
common code to support USB.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Kukui
Change-Id: I1224cf24f92b07f3c1814f1cbfef96aafa5a992b
Signed-off-by: Jumin Li <jumin.li@mediatek.com>
Reviewed-on: https://review.coreboot.org/28787
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Joel Kitching <kitching@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Refactor USB code which will be reused among similar SoCs.
BUG=b:80501386
BRANCH=none
TEST=Boots correctly on Elm
Change-Id: I06fefb4149a489be991e13ddf624082d11e31765
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/28786
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Make #define definitions for PMxEF and replace the hardcoded values.
Note that this doesn't change the current functionality of the source.
The existing code has been propogated from the sb//hudson port, which
seems to attempt to enable 100% of all OHCI and EHCI controllers that
may be present in the system.
Change-Id: I6018b0062730de19e3283a010144dfedc2b11423
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29075
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Remove nonpreset controllers from the PCI device identifier function
(ignoring any CONFIG_USBDEBUG_HCD_INDEX). The extra devices appear
to be holdovers from the original sb/hudson source.
TEST=Jam Makefile.inc to unconditionally build enable_usbdebug.c and
verify proper BDF is returned in romstage and ramstage.
Change-Id: I2e819d5e998922ad427c4a094c29a590f249a0d3
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29074
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Delete an unmatched opening parenthesis in the definition for the EHCI
hub config register definition. This wasn't causing a problem unless
EHCI debug was enabled.
TEST=Jam Makefile.inc to unconditionally build enable_usbdebug.c and
verify successful build
Change-Id: I5f461d1573e416b5a8ee24329142e3c46b6a05e3
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29073
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
With https://github.com/IntelFsp/FSP/pull/4 merged, this allows using
Intel's FSP repo (that we mirror) to build a complete BIOS ifd region
with a simple coreboot build, automatically drawing in headers and
binaries.
This commit covers Apollolake, Coffeelake, Skylake, and Kabylake.
Skylake is using Kabylake's FSP since its own is FSP 1.1 and Kabylake's
also supports Skylake.
Another candidate (given 3rdparty/fsp's content) is Denverton NS, but
it requires changes to coreboot's FSP bindings to become compatible.
Cannonlake, Whiskeylake require an FSP release.
Change-Id: I8d838ca6555348ce877f54e95907e9fdf6b9f2e7
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/28593
Reviewed-by: Pratikkumar V Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The AMD implementation of this register is only 16 bits. Change the
source accordingly.
TEST=Suspend/Resume a Grunt several times
Change-Id: Ib900468cc1c790fa7d57bb6faa91aee012173f7a
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29016
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Shorten the names in the MISC CGPLL_CONFIG, and make the formatting match
the surrounding source.
Change-Id: I71cf1ff6bd4bca7a25484b4da9388c17cfecc043
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29015
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Make the field names of the MISCx00 GPPClkCntrl more manageable by
shortening their names. Make the definitions look more like the
rest of the header file.
Change-Id: I515cd664808e38851a7dbdba899df4fb9bbbcde6
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29014
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Group definitions so they're near others of the same type, e.g. PCI,
AcpiMmio, etc.
Change-Id: Ia6ef21431db0e758eba0ea043b54c036ec6235fe
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29013
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Match the rest of the soc/stoneyridge source.
Change-Id: I4531e6dad0362be73499647d9fc93c168b6f163e
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29009
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Delete artifacts remaining from the original "hudson" and "yangtze"
controller hub designs.
Husdon devices had a configurable AcpiMmio base address, and a selection
for I/O vs. MMIO decode. Modern products are fixed at 0xfed80000 in MMIO.
Remove the flash control register definitions for the old generations.
The manual reset register appears to not function as hudson.
PMIO_DEBUG is named differently now, and not used, so remove its
definition too.
Change-Id: I6484bb2ca80b65318565dfee1a3368b121aea9de
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/29008
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
STAPM devicetree registers do not indicate the unit, which causes confusion.
More importantly, the time was assumed to be in seconds when it's actually
milliseconds. This caused early STAPM configurations to fail.
BUG=b:117590953
TEST=Build grunt
Change-Id: I2a7e3d43601992d1f7b02456913c763d940fe9ee
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/29035
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Bounce buffers used to be used in those cases where the payload
might overlap coreboot.
Bounce buffers are a problem for rampayloads as they need malloc.
They are also an artifact of our x86 past before we had relocatable
ramstage; only x86, out of the 5 architectures we support, needs them;
currently they only seem to matter on the following chipsets:
src/northbridge/amd/amdfam10/Kconfig
src/northbridge/amd/lx/Kconfig
src/northbridge/via/vx900/Kconfig
src/soc/intel/fsp_baytrail/Kconfig
src/soc/intel/fsp_broadwell_de/Kconfig
The first three are obsolete or at least could be changed
to avoid the need to have bounce buffers.
The last two should change to no longer need them.
In any event they can be fixed or pegged to a release which supports
them.
For these five chipsets we change CONFIG_RAMBASE from 0x100000 (the
value needed in 1999 for the 32-bit Linux kernel, the original ramstage)
to 0xe00000 (14 Mib) which will put the non-relocatable x86
ramstage out of the way of any reasonable payload until we can
get rid of it for good.
14 MiB was chosen after some discussion, but it does fit well:
o Fits in the 16 MiB cacheable range coreboot sets up by default
o Most small payloads are well under 14 MiB (even kernels!)
o Most large payloads get loaded at 16 MiB (especially kernels!)
With this change in place coreboot correctly still loads a bzImage payload.
Werner reports that the 0xe00000 setting works on his broadwell systems.
Change-Id: I602feb32f35e8af1d0dc4ea9f25464872c9b824c
Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Reviewed-on: https://review.coreboot.org/28647
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Fixes builds of that binary in clean trees.
Change-Id: If5a995449a74c00da836fcf22bda44ebc8197518
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/28994
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Remove assert() and instead use if statement to check if
comm->groups is NULL.
Found-by: klockwork
BUG=None
TEST=Boot to OS
Change-Id: I85a6bc700b52d04c61ca8f2baac62000f40cf2cb
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/28940
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This change sets PCIEXPWAK_DIS in PM1_EN register if WAKE# pin is not
enabled on the platform. This is required to prevent unnecessary wakes
if the WAKE# pin remains not connected on the platform. Function to
set PCIEXPWAK_DIS gets called in normal boot path (BS_PAYLOAD_LOAD) as
well as S3 resume path (BS_OS_RESUME).
BUG=b:117284700
TEST=Verified that no spurious wakes are observed on nocturne.
Change-Id: Iea93baffc9bb703c0ffedacafc6a9a9410c7ebfe
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/28939
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Now only those UARTs that are enabled in devicetree.cb are initialized.
Tested on Opencellular Elgon.
Change-Id: I145c224148f0cc078bb1c76f588f603e73121a62
Signed-off-by: Jens Drenhaus <jens.drenhaus@9elements.com>
Reviewed-on: https://review.coreboot.org/28975
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
AMD's SOC do not wait for I2C transactions to complete before executing
a reset. Because of this, it's possible for the reset to happen in the
middle of a transaction, resulting on a slave hang. There are 2 possible
solutions:
If the slave has a reset pin connected to a GPIO pin, it can be used to
reset the slave, else the only solution is to bang SCL 9 times. Create
code that makes it easy to implement SCL bang, using a devicetree
register to define which I2C SCL lines needs to be reset.
BUG=b:114479395
TEST=Build and boot grunt. Look at transactions on a scope.
Change-Id: I7f74b7e45c509044825355874753969f074e2382
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/28574
Reviewed-by: Daniel Kurtz <djkurtz@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
