Remove i2c1 because brask devicetree is already has it.
BUG=b:220814038
TEST=emerge-brask coreboot.
Signed-off-by: Raihow Shi <raihow_shi@wistron.corp-partner.google.com>
Change-Id: Ic782e1c6434ac57bdf65b3d9f4219bdf32d25b9e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63545
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Enable pen garage. Pen detect is active low.
BUG=b:229168203
TEST:Build and boot to OS in skyrim. Evtest work as expected
Input driver version is 1.0.1
Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100
Input device name: "PRP0001:00"
Supported events:
Event type 0 (EV_SYN)
Event type 5 (EV_SW)
Event code 15 (SW_PEN_INSERTED) state 1
Properties:
Testing ... (interrupt to exit)
Event: time 1649922170.578779, type 5 (EV_SW), code 15 (SW_PEN_INSERTED), value 0
Event: time 1649922170.578779, -------------- SYN_REPORT ------------
Event: time 1649922172.070740, type 5 (EV_SW), code 15 (SW_PEN_INSERTED), value 1
Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Change-Id: I3bb07af6aebdc355a73148d8be79b1014147f61d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63633
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Add Goodix touchscreen according to the Programming Guide Rev.0.7
BUG=b:228907558
TEST=local build and tested with Goodix touch screen
Change-Id: I35dd3ca76e9e0f17508bef46c90b53b4be5d0033
Signed-off-by: Ian Feng <ian_feng@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63573
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Fix the issue that can't hear the boot beep at dev screen. GPP_B14 is
used for PWM_PP3300_BUZZER and it should set to GPO. Modify GPP_B14 from
PAD_CFG_NF_LOCK to PAD_CFG_GPO_LOCK.
BUG=b:229345416
BRANCH=firmware-brya-14505.B
TEST=emerge-brask coreboot and verify if the buzzer beeps.
Signed-off-by: Dtrain Hsu <dtrain_hsu@compal.corp-partner.google.com>
Change-Id: I601735ab20974cd992ca5dd6dbaca1517a395aa2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63645
Reviewed-by: Frank Wu <frank_wu@compal.corp-partner.google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Pick specific VBTs for HDMI, DP, and ABSENT according to FW_CONFIG.
BUG=b:220241277
TEST=emerge-brask coreboot.
Signed-off-by: Raihow Shi <raihow_shi@wistron.corp-partner.google.com>
Change-Id: Icc8fbef1467605505459fce264697f670591c81e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63604
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This is a property of a platform and should not be exposed to the
user.
Change-Id: I34f9097d40b2bf732cecf30bf13ba5a413dd53a5
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63676
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
None of these options make sense on different ARCH.
Change-Id: Ie90ad24ff9013e38c42f10285cc3b546a3cc0571
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63673
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Followed the Brya series to lock the gpio pins in baseboard. Variant
should honor locked gpios from baseboard, but not the last. Variant can
add more gpios to lock if needed.
BUG=b:216671701
TEST='emerge-nissa coreboot chromeos-bootimage', flash and verify that
nivviks boots successfully to kernel.
Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: Ib34ca287596a6958407a944d0caf53f4bcc60d9b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63568
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This patch is based on similar changes [1] done in Depthcharge projects,
which aimed to provide unified way to build host-side programs for
testing internal code. New test tools might benefit from it by having
same base code as unit-tests.
[1] https://crrev.com/c/3412108
TEST=make unit-tests
TEST=COV=1 make unit-tests coverage-report
Signed-off-by: Jakub Czapiga <jacz@semihalf.com>
Change-Id: Iac4517ab6146fa3f2d2b7a20df54601ab2d04c3d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63637
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
update STT setting for dewatt.
BUG=b:228040295
BRANCH=guybrush
TEST=build, verify the parameter has been applied to
the system by checking the AGT tool.
Signed-off-by: Chris.Wang <chris.wang@amd.corp-partner.google.com>
Change-Id: Id319d42747dd0d5f6a9ca727635d85e6b9bd65af
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63699
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This patch creates a helper function to set SPI controller VCL bit as
recommended by Intel Flash Security Specification.
BUG=b:211954778
TEST=Able to build google/brya and verified that SPI flash controller
MMIO register 0xC4 bit 30 is set.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ie9a12db1bab81779fd8e7db90221d08da3c65011
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63626
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This patch creates a helper function to clear HSFSTS_CTL (offset 0x04)
register Bits 0 to 4.
As per Intel PCH BIOS spec section 3.6 Flash Security Recommendation,
it's important to clear all SPI outstanding status before setting SPI
lock bits.
BUG=b:211954778
TEST=Able to build google/brya with this patch and clear SPI controller
HSFSTS_CTL register Bits 0 to 4.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I62adba0d0cef1d4c53b24800f90b4fe76a9d78b7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63625
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This patch creates a helper function to check if any SPI transaction
is pending.
As per Intel PCH BIOS spec section 3.6 Flash Security Recommendation,
it's important to ensure there is no pending SPI transaction before
setting SPI lock bits.
BUG=b:211954778
TEST=Able to build google/brya with this patch and no error msg seen
due to `SPI transaction is pending`.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ibd3f67ae60bfcb3610cd0950b057da97ff74b5b9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63624
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
This patch converts whitespace into tabs to maintain the uniformity
across the fast_spi_def.h file.
BUG=b:211954778
TEST=Able to build google/brya.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I56bcd263c6a5c0036e459926a25538e3448fbce6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63623
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Remove EC_ENABLE_LID_SWITCH since this causes a duplicate SW_LID
entries. The other SW_LID entry is generated by MKBP.
BUG=b:228907256
BRANCH=guybrush
TEST=Lid open close triggers events on Nipperkin
Change-Id: I5c1cf7aeac8405bce7bfc77110eceaf3e5383fe7
Signed-off-by: Rob Barnes <robbarnes@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63658
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This is based on previous work done by a good friend of mine.
The notable differences between this board and the SFF variant is that:
- CMT has 4 more PCI/PCIe ports than SFF.
- CMT has 2 more SATA ports than SFF.
TESTED on Z220 CMT Workstation (boots to payload)
Change-Id: I2b298921e6f509440ec7b049e086c0878f708bd3
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62809
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Set the BT USB device to use GPIO for the power status. This causes an
ACPI `_STA()` function to be generated that returns the power status of
the BT USB device, rather than always returning `0x1`. This `_STA()`
function can be used during boot to skip enabling the device (and
performing the associated sleep) if the device is already powered on.
BRANCH=None
BUG=b:225022810
TEST=Dump SSDT table for guybrush
Signed-off-by: Tim Van Patten <timvp@google.com>
Change-Id: I72f6b28671efddfbef53f328d904a05f73f39efa
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63559
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
If the device has enabled `use_gpio_for_status`, then call the `_STA`
method in `_ON` to determine if the device is already enabled. If it is
already enabled, return early to skip re-enabling the device and
performing the associated sleep.
This change is necessary since the Linux kernel does not call `_STA`
before calling `_ON`.
BRANCH=None
BUG=b:225022810
TEST=Dump SSDT table for guybrush
Signed-off-by: Tim Van Patten <timvp@google.com>
Change-Id: I13aa41766555953b86eded4c72e3b317fe6db5c8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63613
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add the member `use_gpio_for_status` to the structure
`drivers_usb_acpi_config`, so the `devicetree.cb` can specify it.
This field is then used to initialize the corresponding field in the
structure `acpi_power_res_params` in `usb_acpi_fill_ssdt_generator()`.
The member `acpi_power_res_params::use_gpio_for_status()` is already
being used by `acpi_device_add_power_res()` to determine which version
of the `_STA()` method to output.
BRANCH=None
BUG=b:225022810
TEST=Dump SSDT table for guybrush
Signed-off-by: Tim Van Patten <timvp@google.com>
Change-Id: I69eb5f1ad79f3b2980f43dcf4a36585fca198ec9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63558
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Replace 'struct lb_uint64' with 'typedef __aligned(4) uint64_t
lb_uint64_t', and remove unpack_lb64/pack_lb64 functions since it's no
longer needed.
Also replace 'struct cbuint64' with 'cb_uint64_t' and remove
'cb_unpack64' in libpayload for compatible with lb_uint64_t.
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Change-Id: If6b037e4403a8000625f4a5fb8d20311fe76200a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Update the build scripts to inject variant specific SPDs into APCB.
BUG=None
TEST=Build and boot to OS in Skyrim boards with all the concerned memory
parts.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I3b3f6f248d54681c6f55c00660d1f2988ae906ba
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63600
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add supported memory parts and generate the associated DRAM part ID.
Also for MT62F2G32D8DR-031 WT:B memory part, add a custom SPD that
configures the DRAM speed at 5500 MHz. Use this custom SPD until that
part can operate at full speed (i.e. 6400 MHz).
BUG=None
TEST=Build Skyrim.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: Id87e79f5d6187d57d74487841c09aa309f1450b4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63599
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
APCB edit tool edits APCBs with LP4 specific SPDs. Introduce an option
to support different SPD magic so that the tool can be used to edit
APCBs with LP5 specific SPDs.
BUG=None
TEST=Build Skyrim board with LP5 specific SPDs. Build Guybrush board
with LP4 specific SPDs.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I8e96c89e4e5ce8e0567a17bf7685b69080fa1708
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63598
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add support to generate DRAM part ID for boards using Sabrina SoC.
BUG=None
TEST=Generate DRAM part ID for Skyrim mainboard.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: Ica57b12239019831f7bf93982be3c93b7f8b6986
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63597
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Robert Zieba <robertzieba@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Setup the following acoustic noise mitigation features:
1) Slew rate for both IA and GT domains to 1/8
2) Disable Fast package C ramp
BUG=b:229046516
TEST=build and verified by power team
Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: Ifb5700391e33818878994f205acae7ee3b1b96d9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63610
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
PSP needs SPL file to boot. Introduce the support to add SPL file.
Currently Sabrina does not have a specific SPL file. Use Cezanne SPL
file as a placeholder.
BUG=b:224618411
TEST=Build and boot to OS in Skyrim after adding Sabrina specific SPL
file.
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I222bb81b2babddc778b2cff858ef7979f85ac0e6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63313
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The printed address ranges in the tree (resource allocator and even
some MTRR code) usually shows the range inclusive (meaning from start
address to the real end address of the range). Though there is still
some code in the MTRR context which prints the ranges with an exclusive
end. This patch aligns the printing of ranges in the MTRR code to be
consistent among the tree so that the shown end addresses are now
inclusive.
Change-Id: I0ca292f9cf272564cb5ef1c4ea38f5c483605c94
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63541
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Some brya variants may need to initialize and finalize some
variant-specific devices during ramstage, therefore add the
commonly-used hooks and callbacks to support this.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Iede6dc5a5b9a7385fedd59d4eeaaba118eff0e20
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62382
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Add PAD_CFG_GPI_SCI_LOW_LOCK and PAD_CFG_GPI_SCI_HIGH_LOCK macro
to support mainboard to lock NC and GPI_SCI pins as applicable.
BUG=b:216583542
TEST=build passed
Signed-off-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Change-Id: I5060777cc09af6cb3144ad799154e77167521de3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63569
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
This patch renames all required IA common code blocks and PCH configs
from DMI to GPMR.
TEST=Able to build and boot google/redrix.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ic6e576dd7f207eb16d90c5cc2892d919980d91c4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63608
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
This patch enhances the GPMR driver to add public APIs for other IA
common code drivers and/or SoC code to utilize.
Also, migrated all PCR GPMR register definitions into the common
`pcr_gpmr.h` header file.
TEST=Able to build and boot google/redrix.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I87dca55a068366cb9a26a5218589166c1723da7f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63607
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
AMDFWtool maintains 2 copies of PSP Level2 entries - one in primary slot
A (Type 0x48) and another in backup slot B (Type 0x4A). On boards which
use VBOOT with 2 RW firmware slots, maintaining 2 copies of PSP Level2
entries in each FW slot is redundant and space-consuming. Introduce
option to maintain only one copy of PSP Level2 entries and point to it
from both slots A & B.
BUG=None
TEST=Build and boot to OS in Skyrim. Ensure that only one copy is added
to each FW slot. This achieved a space saving of 1.5 MB in each FW slot.
Before:
apu/amdfw 0x415fc0 raw 3043328 none
After:
apu/amdfw 0x415fc0 raw 1556480 none
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Change-Id: I06eef8e14b9c14db1d02b621c2f7207188d86326
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63509
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Previously, clock_configure() will configure the clocks to round up to
the next highest frequency bin. This seems non-intuitive. Changing
the logic to find an exact frequency match and will halt booting if no
match is found. Recently fixed a bug in CB:63311, where the clock was
being set incorrectly for emmc and was able to find it because of this
stricter check.
BUG=b:198627043
BRANCH=None
TEST=build herobrine image and try to set SPI frequency to number not
supported. Ensure device doesn't boot.
Change-Id: I9cfad7236241f4d03ff1a56683654649658b68fc
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63289
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <patrick@coreboot.org>
This is for future feature combo, which gets the soc id from fw.cfg in
a loop instead of the command line, and the romsig is not set until
fw.cfg is processed.
Change-Id: Id50311034b46aa1791dcc10b107de4af6c86b927
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63344
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This patch adds `xhci_host_reset()` to reset XHCI controller and the
scope of this function is with SMM hence, compiling xhci.c for SMM as
well.
Also, refactored `xhci.c` code to keep PCI enumeration within the scope
of `ramstage` alone hence, guarded with `ENV_RAMSTAGE` env_variable.
BUG=b:227289581
TEST=Able to perform a call from `xhci_host_reset` from S5 smi handler.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ie0dc0a64044f291893931726d26c08c8b964a3cc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63551
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch calls into need_restore_mtrr() from the mtrr_use_temp_range
function to set `put_back_original_solution` to discard any temporary
MTRR range prior to boot to payload.
BUG=b:225766934
TEST=Able to build and boot google/brya to verify that
`remove_temp_solution()` is able to discard any temporary MTRR range
before booting to payload.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I2e00ec593847e1eb173d5ac77b15b50342860f89
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63491
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Raihow Shi