This patch ensures to enable IFD GBE region only for required
CFL RVP8 and 11 supported by Intel IOTG team.
TEST=Ensure CONFIG_MAINBOARD_USES_IFD_GBE_REGION is not selected
for CFL-U and WHL-U boards
Change-Id: If3fcd23c32f9afd2004fb176c0324f089f2ee412
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/31192
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Enable ASPM L1.2 support for embedded realtek card reader, after change
the power consumption for SD controller from 5mW to less than 2mW.
BUG=N/A
TEST=Build and boot up on Arcada platform, check the PCI configuration
on pcie root port offset 0x208 is 0x0f, and offset 0x168 on card reader
is also 0x0f.
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Change-Id: I08d85ee332ceee8ed85cd816bc3e6c895528fdb0
Reviewed-on: https://review.coreboot.org/c/31145
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Roy Mingi Park <roy.mingi.park@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enable USB ACPI driver for octopus boards and add bluetooth USB ACPI
configuration in devicetree. This change enables exporting the bluetooth
reset GPIO to the kernel for use in an rf-kill operation.
BUG=b:123296264
BRANCH=octopus
TEST=Boots to ChromeOS
Change-Id: Ie40f1ad70f21a6fd398ce23d060e0c588ba6ce41
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/31130
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add separate functions for selecting the port and reading the port.
Romstage can now read incremental from the data port.
Change-Id: I0ffde3bc2a4415a8af99af2275d16f6609099e37
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-on: https://review.coreboot.org/c/30846
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reduce the number of fw_find_file calls by returning the file structure
at fw_cfg_check_file. The file structure can then be used to allocate memory
and access the file content directly without recurrence searching.
Remove now unnecessary function fw_cfg_load_file.
Fixed breaking function calls and add include guard at fw_cfg_if.h.
Change-Id: I48cc943aaa999e4323e9d7e5dd666c5316533dcc
Signed-off-by: Thomas Heijligen <thomas.heijligen@secunet.com>
Reviewed-on: https://review.coreboot.org/c/30845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
In payloads, we didn't set GPIO modes. We have to set up GPIO mode in
coreboot for payloads.
BUG=b:80501386
BRANCH=none
TEST=HW reboot works in depthcharge
Change-Id: Ibd2c6c071871edc59497fbb245cdbec6a814f621
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/31148
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
CB:31139 fixs few ACPI type error. Here is few more typo mistake.
Change-Id: Ieecf0ba8fe09ed5003d5ae766079b8f83cc891b9
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/31152
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Because of Intel's faulty LPC clock, the SERIRQ mode must be corrected.
By removing this entry from devicetree, the default value (quiet mode)
is used. The problem is described in Intel document 334820-007 under
point APL47.
Change-Id: I7a45e0e5fcde17a20abd19a33282b8a9215b1480
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/31138
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The TPM chip is connected to the SPI interface of APL. The proper chip
select pin needs to be used in order to access the TPM in the memory
mapped space. This needed chip select is internally (inside APL)
routable to GPIO 106. Therefore the change of GPIO 106 mode is needed to
make the TPM work on SPI bus.
TEST=Build coreboot for mc_apl2 board and check the TPM console output.
In addition the TPM was correctly verified by our Linux driver.
Change-Id: I2b0d5a6f2c230187857c2428a70de61f21da6724
Signed-off-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-on: https://review.coreboot.org/c/31125
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Real unused GPIO pad is GPIO_123, but GPIO_122 is configured as unused pad.
This patch corrects the configuration.
BUG=NONE
BRANCH=octopus
TEST=emerge-octopus coreboot
Change-Id: I4473bd66a4162f5aee3b998aacba906824728fc8
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.com>
Reviewed-on: https://review.coreboot.org/c/31135
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Initialize EC_PCH_WAKE_ODL GPIO to make sure that ec events will wake
the AP from suspend. Also create a task to initialize the hostevent
wake mask properly.
BUG=b:123325238,b:123325720
BRANCH=None
TEST=from AP console: powerd_dbus_suspend
from EC console: hostevent (make sure wake mask set)
from EC console: gpioset PCH_WAKE_L 0
Make sure device wakes up
Also, checked to make sure keyboard press wakes up
device from S3.
Change-Id: I53d5291a6b9ab9a21e89ccd21f172180ce473bd5
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/31100
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
List Raydium touchscreen in the devicetree so that the correct ACPI device
are created.
BUG=b:121105424
BRANCH=octopus
TEST=emerge-octopus coreboot chromeos-bootimage
reflash the coreboot to DUT, make sure the Raydium touchscreen can work.
Change-Id: I9ffb2a858f31a8b003086806de07f4079870cddf
Signed-off-by: Hao He <hao.he@bitland.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/31116
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
MT8183 only allows booting from eMMC, so we have to do eMMC emulation
from an external source, for example EC, which makes the size of
bootblock very important.
This CL moves some initialization steps from bootblock to verstage. This
will save us about 2700 bytes (before compression) / 1024 bytes (after
LZ4 compression) in bootblock. In case of CONFIG_VBOOT is disabled,
these initialization steps will be done in romstage.
BRANCH=none
BUG=b:120588396
TEST=manually boot into kernel
Change-Id: I9968d88c54283ef334d1ab975086d4adb3363bd6
Signed-off-by: You-Cheng Syu <youcheng@google.com>
Reviewed-on: https://review.coreboot.org/c/30331
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Asserting GPIO PERIPHERAL_EN8 will send a signal to EC to trigger a HW
reset for SoC and H1.
BUG=b:80501386
BRANCH=none
TEST=emerge-kukui coreboot; manually verified the do_board_reset() on
Kukui P1
Change-Id: I9afad84af2031a766bc08fc76c8b5f55588c453a
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/31118
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Separate WDT reset function from WDT driver, then we can use the common
WDT driver and have a board-specific reset function on different boards.
In Kukui, we plan to use GPIO HW reset, instead of WDT reset. Add config
"MISSING_BOARD_RESET" in Kukui to pass the build for now.
BUG=b:80501386
BRANCH=none
TEST=emerge-elm coreboot; emerge-kukui coreboot;
Change-Id: Ica07fe3a027cd7e9eb6d10202c3ef3ed7bea00c2
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/31121
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This board has almost the same schematics as [xt]60 so this should work.
See also commit 7971582e with Change-Id
Iff6dac5a5f61af49456bc6312e7a376def02ab00.
Change-Id: I8dc9b122eb64b5c1dcd0dbc99ac41aa0f8dd9766
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31115
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Working:
- USB (Partially. Check "Not working")
- PCIe
- PCIe graphics
- All SATA ports
- Native memory init
- On-board audio (back and front)
- S3 (Sleep and wake)
Not working:
- Fan control
- USB (If the keyboard has a USB Hub or if the keyboard
is connected through 2 or more hubs then it doesn't
initialize in time. A simple reboot allows the
keyboard to be used in SeaBIOS and the bootloader)
Untested:
- PS/2
- On board graphics
Change-Id: I4ed2077248a8d7123c728c790d9b81fe37956ed2
Signed-off-by: Abhinav Hardikar <realdevmaster64@gmail.com>
Reviewed-on: https://review.coreboot.org/c/30767
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These pins should not have pull downs configured in standby state as that
can cause contention on the termination circuitry and lead to incorrect
behavior as per Doc# 572688 Gemini Lake Processor GPIOTermination
Configuration.
BUG=b:79982669
TEST=Checked that code compiles with changes.
Change-Id: If3cadc000ec6fc56019ee3f57e556dc819d5e0a5
Signed-off-by: Shamile Khan <shamile.khan@intel.com>
Reviewed-on: https://review.coreboot.org/c/30823
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
ELAN touchpad supports up to 400KHz, so we need to limit its CLK
frequency to 400HKz.
BUG=b:123376618
BRANCH=octopus
TEST=built and verified touchpad I2C clk frequency gets be lower than 400KHz
Change-Id: If7a43fe20c7e5abdf23c8c36e34c072c371563bf
Signed-off-by: Seunghwan Kim <sh_.kim@samsung.com>
Reviewed-on: https://review.coreboot.org/c/31085
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
While branded as thinkcentre a58 this board can also be found as
"L-IG41M".
Change-Id: I06ed424138c46c6b2f29f15c7ea5c3648b26a8d3
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/31109
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Current Melfas touchscreen driver cannot unregister ifself when
connecting without Melfas touchscreen or connecting with other devices.
And Melfas touchscreen FW can use I2C and HID over I2C driver, so
switch to using HID over I2C driver.
BUG=b:122710830
BRANCH=master
TEST=Verify touchscreen on sarien works with this change.
Signed-off-by: Chris Zhou <chris_zhou@compal.corp-partner.google.com>
Change-Id: If04a2904a0f72a6c8363ab2c9865926c71cb5186
Reviewed-on: https://review.coreboot.org/c/31062
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Boots again to payload not found on qemu.
Change-Id: Ie107eb882cbaac5a5a06c1ff990e7b9364377640
Signed-off-by: Philipp Hug <philipp@hug.cx>
Reviewed-on: https://review.coreboot.org/c/30554
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This board does not have PMH7.
Change-Id: I382958f012e5f4445efc76c7f36bbdf460c29be4
Signed-off-by: James Ye <jye836@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31065
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
- Port the existing denverton tables to intelblock
- Add C-States table for denverton
Note: Removed code is functionally identical to corresponding
common code.
Tested-on: scaleway/tagada
Change-Id: Iee061a258a7b1cbf0a69bcfbf36ec2c623e84399
Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net>
Reviewed-on: https://review.coreboot.org/c/25428
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
New emmc DLL values for Ampton
BUG=b:122307153
TEST=Boot to OS on 5 systems
Change-Id: Iadd58d254f4bb384f483c2c3e5615f7569d5211c
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/31048
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
By default this board is configured to not power up after an
EC reset. However in the case of a cr50 firmware update that
will reset the EC it will end up powered off. In order to have
it stay powered up configure the board to power up. This will
get reset to the configured default when it boots again.
BUG=b:121380403
TEST=update cr50 firmware and reboot to ensure system boots and
does not end up powered off.
Change-Id: I85beae24b1bc56bb0813f1fd1305218f04b0c1c8
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/31058
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Increase BIOS region(SI_BIOS) from 16MB to 28MB to make more spaces for
upcoming payloads.
BUG=b:121169122
TEST=Build and boot up fine into OS on sarien and arcada platform.
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Change-Id: I4b03e20a485cb819b468c00e68f1539e92731237
Reviewed-on: https://review.coreboot.org/c/31054
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Add support Synaptics touch pad for Aleena/Kasumi.
BUG=b:122549449
BRANCH=master
TEST= Check if synaptics touch pad working in ChromeOS.
Change-Id: Icab1b312f1943b27037ef458044ce9e7172919ee
Signed-off-by: Lucas Chen <lucas.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/31064
Reviewed-by: Daniel Kurtz <djkurtz@google.com>
Reviewed-by: David Wu <david_wu@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Hide "Add gigabit ethernet firmware" option for boards that do not
use GbE firmware in GbE section.
The option is now hidden by default and can be reenabled on a
per-board basis by selecting MAINBOARD_USES_IFD_GBE_REGION in the
mainboards Kconfig.
The following boards seem to use this:
mb/roda/rv11
mb/ocp/wedge100s
mb/ocp/monolake
mb/lenovo/x230
mb/lenovo/x220
mb/lenovo/x201
mb/lenovo/x200
mb/lenovo/t530
mb/lenovo/t520
mb/lenovo/t430s
mb/lenovo/t430
mb/lenovo/t420s
mb/lenovo/t420
mb/lenovo/t400
mb/kontron/ktqm77
mb/intel/saddlebrook
mb/intel/kblrvp
mb/intel/dg43gt
mb/intel/dcp847ske
mb/intel/coffeelake_rvp
mb/intel/camelbackmountain_fsp
mb/hp/revolve_810_g1
mb/hp/folio_9470m
mb/hp/compaq_8200_elite_sff
mb/hp/8770w
mb/hp/8470p
mb/hp/8460p
mb/hp/2760p
mb/hp/2570p
mb/google/sarien
mb/facebook/watson
mb/compulab/intense_pc
mb/asus/maximus_iv_gene-z
The boards were identified by looking at devicetree.cb, but this
list is possibly still incomplete.
Change-Id: Ibfb07902ad93fe5ff2bd4f869abcf6579f7b5a79
Signed-off-by: Jan Tatje <jan@jnt.io>
Reviewed-on: https://review.coreboot.org/c/30790
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
In order to support the physical recovery GPIO on sarien it needs
to enable the option VBOOT_PHYSICAL_REC_SWITCH and set the GPIO
number in the coreboot table appropriately so that depthcharge can
correctly determine the GPIO number. The same is done for the
write protect GPIO in this table.
Additionally since we are reading a recovery request from H1 it
needs to cache the result since H1 will only return true on the
first request. All subsequent queries to H1 will not indicate
recovery. Add a CAR global here to keep track of the state and
only read it from H1 the first time.
BUG=b:121380403
TEST=test_that DUT firmware_DevMode
Change-Id: Ia816a2e285d3c2c3769b25fc5d20147abbc71421
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/31043
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enable gpio_keys driver for bobba and add required configuration in the
device tree to handle the pen eject event.
BRANCH=octopus
BUG=b:117953118
TEST=Ensure that the system boots to ChromeOS. Ensure that the stylus tools
open on pen eject. Ensure that the system wakes on Pen Eject. Ensure that
the system enters S0ix and S3 states after the pen is ejected. Ensure that
the system enters S0ix and S3 states when the pen remains inserted in its
holder. Ensured that the system does not wake when the pen is inserted.
Ensure that the suspend_stress_test runs successfully for 25 iterations
with the pen placed in its holder.
Change-Id: I768b89d2b45f4dcab6d235b11ce00544a827f22d
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/30108
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
MT8183 only allows booting from eMMC, so we have to do eMMC emulation
from an external source, for example EC, which makes the size of
bootblock very important.
This CL adds a new function mt8183_early_init, which includes all
initializations that should be done in early stages. All mainboards
using MT8183 should manually call it in either bootblock or verstage.
BRANCH=none
BUG=b:120588396
TEST=manually boot into kernel
Change-Id: I35d7ab875395da913b967ae1f7b72359be3e744a
Signed-off-by: You-Cheng Syu <youcheng@google.com>
Reviewed-on: https://review.coreboot.org/c/31024
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This patch enables relevant GPIOs to enable WWAN. WWAN also requires to
enable USB 2 port 6 and USB3 port 5 which is already enabled in device
tree related changes.
BUG=b:120914069
BRANCH=none
TEST=check if code compiles with changes.
Change-Id: I1559bbc6168aec1a369bf3291d2c1e2f9a2fbe07
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/30678
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Enable PCIe WLAN for hatch
1. Enable PCI port 14 for PCIe WLAN
2. Enable CLKREQ, CLK SRC 3 for PCI port 14
3. GPIO pad config for WLAN and BT
USB port for BT has already been enabled so not included in this patch
BUG=b:120914069
BRANCH=none
TEST=check if code compiles correctly and verify GPIO configuration with
schematics
Change-Id: I4f2a6eb37a467ad8b8cdde8fe6b657fabb383b04
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/30467
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
With the memory controller the separate sockets becomes a useless
distinction. They all used the same code anyway.
UNTESTED: This also updates autoport.
Change-Id: I044d434a5b8fca75db9eb193c7ffc60f3c78212b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/31031
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
* Enable COM1, COM2, PMC1 and PMC2
TODO: Look at additional configuration and EC space.
Tested on wedge100s. The serial works without CONFIG_CONSOLE_SERIAL.
Change-Id: Id139bf243c7e7ac3e51a0ddb19d2396452341e29
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/30961
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>