The board's ec.h file defined EC_SCI_GPI as GEVENT_24, so use that
definition in all places in the mainboard code instead of a mix of the
board specific define and the SoC's GEVENT number define.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I46525ed24e9993acd3d850959dd63761a690d5df
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Use lapicid api to support both x2apic mode and apic mode
BUG=None
BRANCH=None
TEST=boot to OS and check apic mode
cat /proc/cpuinfo | grep "apicid"
Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: I5ca5b09ae67941adcc07dfafdfe4ba78b0f81009
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51725
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Implement x2apic mode as existing code only supports apic mode.
Use info from LAPIC_BASE_MSR (LAPIC_BASE_MSR_X2APIC_MODE) to check
if apic mode or x2apic mode and implement x2apic mode according to
x2apic specfication.
Reference:
https://software.intel.com/content/www/us/en/develop/download/intel-64-architecture-x2apic-specification.html
BUG=None
BRANCH=None
TEST=boot to OS and check apic mode
cat /proc/cpuinfo | grep "apicid"
ex) can see apicid bigger than 255
apicid : 256
apicid : 260
Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: I0bb729b0521fb9dc38b7981014755daeaf9ca817
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51723
Reviewed-by: Ravishankar Sarawadi <ravishankar.sarawadi@intel.com>
Reviewed-by: Jamie Ryu <jamie.m.ryu@intel.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enable CRFP power control in gpio table. RST needs to drive low
before PWR enable. Since reset signal is asserted in bootblock,
it results in FPMCU not working after a S3 resume. This is a known issue.
BUG=b:181377402
BRANCH=None
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I8a8fae80c3cc186e0a097ab2007abb656f382cbd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52185
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Algorithm used to calculate weekday is now based on Zeller's rule, so it
does not need if statement constraining year to 1971 and later.
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I25e2e6a1c9b2fb1ac2576e028b580db0ea474d37
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52347
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Add unit-tests targets to help output. Add list-unit-tests target
that lists all available unit-tests.
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I464a76cbea1f4afbc3fc772960787952e61b95b9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52293
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Allows using the internal speakers of the oryp5.
Smart AMP data was collected using a logic analyzer connected to the IC
during system start on proprietary firmware. This data is then used to
generate a C file [1].
[1]: https://github.com/system76/smart-amp
Change-Id: I148f18ff3e754d913bdf907121b103c6de02ffc3
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47962
Reviewed-by: Jeremy Soller <jeremy@system76.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This adds a driver for the TI TAS5825M smart amplifier [1].
The driver expects the mainboard using it to define tas5825m_setup(),
which uses the tas5825m_* functions to set configuration data. Each
mainboard may have very different configuration data, depending on
its audio hardware.
Tested on System76 addw1, bonw14, oryp5, and oryp6.
[1]: https://www.ti.com/product/TAS5825M
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: I896e8f272f18e64bfc90f406e7d4163010800aaf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43614
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The new discovery from Google & AMD, the value currently used
STAPM Time Constant of 1640 is reducing real PPT TSP from the
target 4.8W to 4.68W.
Furthermore, when using the "default" STAPM Time Constant of 1400,
the actual real PPT TSP becomes 4.89W.
Operating at this default settings therefore uses a higher real PPT TSP,
which results in a significant performance improvement.
BUG=b:175364713,b:184902568
BRANCH=zork
TEST=1. emerge-zork coreboot
2. run balance performance and skin temperature test => pass
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Change-Id: I9cf4d51f42fe250340bcb642db07796c9a480c34
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52312
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Sam McNally <sammc@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The new discovery from Google & AMD, the value currently used
STAPM Time Constant of 1640 is reducing real PPT TSP from the
target 4.8W to 4.68W.
Furthermore, when using the "default" STAPM Time Constant of 1400,
the actual real PPT TSP becomes 4.89W.
Operating at this default settings therefore uses a higher real PPT TSP,
which results in a significant performance improvement.
BUG=b:184902568
BRANCH=zork
TEST=1. emerge-zork coreboot
2. run balance performance and skin temperature test => pass
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Change-Id: I102c1c5f8215a6c5f7a4451f5731167c32e27c90
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52313
Reviewed-by: Sam McNally <sammc@google.com>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add wifi sar for botenflex.
Due to fw-config cannot distinguish between boten and botenflex.
Using sku_id to decide to load botenflex custom wifi sar.
Detail reason for using sku_id in b:182433707.
BUG=b:182433707
TEST=build and test on boten/botenflex
Cq-Depend: chrome-internal:3686313
Change-Id: Id3f2529a7ad56ff306df98f77cda556656da52a5
Signed-off-by: Stanley Wu <stanley1.wu@lcfc.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51501
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested with TianoCore payload (UefiPayloadPkg).
Working:
- PS/2 keyboard, touchpad
- Both DIMM slots
- NVMe port
- SATA port
- SD card slot
- Left USB 3 Type-A port
- Right USB 3 Type-A port
- Right USB 3 Type-C port
- Webcam
- Ethernet
- Integrated graphics using Intel GOP driver
- mDP output
- HDMI output
- Internal microphone
- Internal speakers
- 3.5mm audio input
- 3.5mm audio output
- S3 suspend/resume
- Flashing with flashrom
- Booting to Ubuntu Linux 20.10 and Windows 10
Not tested:
- Thunderbolt functionality
Change-Id: I5c992e603dbd57ae1b4ddc3a0f9bfc92d6acc813
Signed-off-by: Jeremy Soller <jeremy@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51832
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The functionality to restore the previous power state after power was
lost that could previously be enabled by selecting
MAINBOARD_POWER_RESTORE in the mainboard's Kconfig can now be achieved
by selecting POWER_STATE_PREVIOUS_AFTER_FAILURE in the mainboard's
Kconfig instead.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I49c4a44ca2c4fa937a823c4eddf1618739c15114
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52303
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
The functionality to restore the previous power state after power was
lost that could previously be enabled by selecting
MAINBOARD_POWER_RESTORE in the mainboard's Kconfig can now be achieved
by selecting POWER_STATE_PREVIOUS_AFTER_FAILURE in the mainboard's
Kconfig instead.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iab9578ebea89651dc2389bf6ca93ca3f3507eb47
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52302
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Picasso and Stoneyridge didn't do a read-modify-write operation on the
lower nibble of PM_RTC_SHADOW_REG, but just wrote the upper nibble as
all zeros. Since the upper nibble might be uninitialized before the
lower nibble gets written, do what Picasso and Stoneyridge did here
instead of what the reference code does. Also add a comment why and how
this register behaves a bit weird.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0bda2349e3ae84cba50b187cc773fd8a5b17f4e2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52301
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Not selecting POWER_STATE_DEFAULT_ON_AFTER_FAILURE brings Cezanne that
is currently the only SoC using this functionality in line with Picasso
where the default is that the board remains in power off mode after
power was lost and later restored. Boards can change this behavior by
selecting POWER_STATE_OFF_AFTER_FAILURE, POWER_STATE_ON_AFTER_FAILURE or
POWER_STATE_PREVIOUS_AFTER_FAILURE.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ic96f40e3c9867cd821e58d752f58b763930f6d0f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52300
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Without this being selected, mainboards can't select
MAINBOARD_POWER_STATE_PREVIOUS to use the power state restoration code
path in pmlib.c
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I753659fa753e03a66b6c6b2eb97e7ef20c71ca57
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52299
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
The first CSE Lite SKU is available, therefore enable the Kconfig
option to have the CSE reboot the system into its RW FW during a cold
boot.
BUG=b:183826781
TEST=50 cold reboot cycles
Cq-Depend: chrome-internal:3758108
Change-Id: Ib3a1a9f8ac51bdab8858b2764d5bc0f6f07987cc
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52298
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Gerrit is able to add reviewers based on entries in the `MAINTAINERS`
file. For inclusion and exclusion matches either paths or regular
expressions can be used. The syntax is described in the header of the
file.
When matching a path, there are two sensible possibilities:
- `path/to/file` matches a file.
- `path/to/dir/` matches a folder including its contents recursively.
- `path/to/dir/*` matches all files in that folder, without recursing
into its subfolders.
The trailing slash in the second example is essential. Without it, only
the directory entry itself matches when, for example, the folder gets
deleted, renamed or its permissions get modified. Reviewers in the list
won't get added to changes of any files or directories below that path.
However, from time to time entries get added without this trailing
slash. Thus, implement a workaround in `maintainers.go` to check, if a
path entry is actually a directory. In such case a trailing slash gets
appended, so that the contents will match, too.
Example: `path/to/dir` will become `path/to/dir/`
Tests:
1. output before and after does not differ
2. manual test of resulting regex when running `maintainers.go`
Change-Id: Ic712aacb0c5c50380fa9beeccf5161501f1cd8ea
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52276
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
maintainers.go does not handle globs as described in MAINTAINERS.
Instead of only matching the files inside a directory, it also matches
everything below. Also, a glob used in between (`e.g. path/to/*/dir`)
could lead to matching many more paths unexpectedly.
This is caused by the way paths using globs are converted to regegular
expressions for use with gerrit:
1. The script converts all paths with trailing slash to a path with
trailing glob. That means, a recursive match on a directory gets
converted to match only the files in the directory (at least
according to the documentation - if there wasn't 2).
Example: `path/to/dir/` becomes `path/to/dir/*`
2. When converting the path to a regex, all globs get converted to
prefix matching by replacing the glob by `.*`. Instead of only
matching the files in the directory, everything below matches,
which is a) not what the documentation states and b) the opposite
of what 1. did first.
Example: `path/to/dir/*` becomes `^path/to/dir/.*$`
In sum, this leads to all sorts of issues. Examples:
- `path/*/dir` becomes `^path/.*/dir$`
- `path/to/dir/*` becomes `^path/to/dir/.*$`
- `path/to/*.c` becomes `^path/to/.*\.c$`
This change fixes that behaviour by:
- dropping the wrong conversion from 1. above.
- fixing glob matching by replacing `*` by `[^/]`.
- handling paths with trailing `/` as prefix, as documented.
The change was not split because these changes depend on each other and
splitting would break recursive matching between the commits.
Tests:
1. diffed output before and after is equal (!= the same)
2. manual testing of glob matching
Change-Id: I4347a60874e4f07e41bdee43cc312547bea99008
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52275
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Lillipup add two sku for OLED panel.
Additional VBT is necessary to modify PWM source from VESA eDP AUX
interface
BUG=b:183630802
TEST=emerge-volteer coreboot-private-files-baseboard-volteer
check vbt_oled.bin is under build folder and check in CPU log.
Cq-Depend: chrome-internal:3744227
Signed-off-by: Kevin Chang <kevin.chang@lcfc.corp-partner.google.com>
Change-Id: I576297b8296def3c37a01ae0223fa332aa9f02b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52150
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Zhuohao Lee <zhuohao@google.com>
Reviewed-by: YH Lin <yueherngl@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The attribute was missing in case the console is disabled.
Change-Id: Iee23f6f4da61cd3637441705a8d3bbd2da7a33ca
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52231
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch changes the Intel MMA driver to use the new CBFS API.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: Icc11d0c2a9ec1bd7a1d6af362f849dac16375433
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52282
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch ports the last remaining use of cbfs_boot_locate() in the
Intel FSP drivers to the new CBFS API. As a consequence, there is no
longer a reason for fsp_validate_component() to operate on rdevs, and
the function is simplified to take a direct void pointer and size to a
memory-mapping of the FSP blob instead.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: If1f0239eefa4542e4d23f6e2e3ff19106f2e3c0d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52281
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch changes the vboot EC sync code to use the new CBFS API. As a
consequence, we have to map the whole EC image file at once (because the
new API doesn't support partial mapping). This should be fine on the
only platform that uses this code (Google_Volteer/_Dedede family)
because they are x86 devices that support direct mapping from flash, but
the code was originally written to more carefully map the file in
smaller steps to be theoretically able to support Arm devices.
EC sync in romstage for devices without memory-mapped flash would be
hard to combine with CBFS verification because there's not enough SRAM
to ever hold the whole file in memory at once, but we can't validate the
file hash until we have loaded the whole file and for performance (or
TOCTOU-safety, if applicable) reasons we wouldn't want to load anything
more than once. The "good" solution for this would be to introduce a
CBFS streaming API can slowly feed chunks of the file into a callback
but in the end still return a "hash valid/invalid" result to the caller.
If use cases like this become pressing in the future, we may have to
implement such an API.
However, for now this code is the only part of coreboot with constraints
like that, it was only ever used on platforms that do support
memory-mapped flash, and due to the new EC-EFS2 model used on more
recent Chrome OS devices we don't currently anticipate this to ever be
needed again. Therefore this patch goes the easier way of just papering
over the problem and punting the work of implementing a more generic
solution until we actually have a real need for it.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I7e263272aef3463f3b2924887d96de9b2607f5e5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52280
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The prototype of gpio_add_events() is provided by that header file.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ia384c9297ac1e24bf0b1bcce048012a247406f39
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52274
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Guybrush complains that this is missing during the boot, so add it to
cezanne. I verified that the registers in gpio.c are correct.
BUG=b:184549804
TEST=Build and boot
Signed-off-by: Martin Roth <martinroth@chromium.org>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I3de3764c99fe89b962db88065575463b365ddaf5
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51751
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Since Cezanne needs the exact same code, move it to the common directory
and add a Kconfig option to add this functionality to the build.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I04c4295071a3df7afcb4dfd5435b11fb0bf6963f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52272
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Port 80 (actually 0x80-0x8f) is a fixed I/O range and thus does not have
to be set up as generic range. Drop the entry from clevo/cml-u, which
has been forgotten in commit c5f1dc9.
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: I05844db4cfe96e6075bd6526ffc242973a2082c2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52271
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Add missing initialization of tag and size fields. Include initial size
value in assertion in test_bootmem_write_mem_table().
Found-by: Coverity CID 1452250
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: I27678a4eb01a0e6bedd0ba8c4b22a1b01afeaf12
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52263
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Gerrit is able to add reviewers based on entries in the `MAINTAINERS`
file. For inclusion and exclusion matches either paths or regular
expressions can be used. The syntax is described in the header of the
file.
When matching a path, there are two sensible possibilities:
- `path/to/file` matches a file.
- `path/to/dir/` matches a folder including its contents recursively.
- `path/to/dir/*` matches all files in that folder, without recursing
into its subfolders.
The trailing slash in the second example is essential. Without it, only
the directory entry itself matches when, for example, the folder gets
deleted, renamed or its permissions get modified. Reviewers in the list
won't get added to changes of any files or directories below that path.
Thus, add a linter script to ensure a path match on a directory always
ends with `/` or `/*` as shown above.
Change-Id: I9873184c0df4a0b4455f803828e2719887e545db
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52210
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
DPTF HIDs are different per-platform going forward, so refactor these
into SoC-specific structures which the DPTF driver can query at runtime
for platform-specific information.
Change-Id: I6307f9d28f4274b851323ad69180ff4ae35053da
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52220
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Instead of counting consecutive matches (in `j`), check for a second
match directly in the control flow. Also, add some dedicated variables:
* `tap`: Keeps track of the tap value that resulted in a match and
is eventually programmed into the hardware.
* `tap2`: Is just temporarily used to search for another edge.
Keeping `tap` sync'ed with the hardware has the benefit that we don't
need to read the programmed value back for later fixups.
Change-Id: I3ae541c39efdc695f5ca74bc757b2f009239ec93
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51903
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
T Michael Turney