A hook for romstage is already existing but not for ramstage.
It's very useful for debugging as it allows to run code
for testing purposes by the mainboard. Also, it allows to
run configuration code or configure FSP options, which
don't have a devicetree option.
Change-Id: I9edc543943c5cbc696fc6c615cb77ef68294c980
Signed-off-by: Felix Singer <felix.singer@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32543
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Remove the bridge enable step of accessing D14F0x64. This method for
enabling the bridge appears to be last present in the SB700 device.
Beginning in the SB800 (and all FCH, SoC devices), the enable is in
PMxEC[0]. Since the bridge is enabled in bootblock to allow port 80h,
there is no need to maintain it in ramstage.
Correct the device used for misc. configuration of the LPC bridge.
The #defined value removed is 14.0 but the settings are in 14.3.
TEST=Boot Grunt, check console and dmesg for errors and warnings
BUG=b:131862871
Change-Id: I078be974dc3c78c94cb7c0832518f21bac029ff2
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32551
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Relocate the function to the more appropriate file.
Change-Id: I92a3e8d0461ae228f6c01567db159e2458de5f6b
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32550
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
This patch fixes up all code that would throw a -Wtype-limits warning.
This sometimes involves eliminating unnecessary checks, adding a few odd
but harmless casts or just pragma'ing out the warning for a whole file
-- I tried to find the path of least resistance. I think the overall
benefit of the warning outweighs the occasional weirdness.
Change-Id: Iacd37eb1fad388d9db7267ceccb03e6dcf1ad0d2
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32537
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
When we increase voltages, it takes 200us for voltages to stablize.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: I5f32035693b6084dbe763411c612ae5d1f7c9e48
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Added macro named PAD_CFG_GPI_GPIO_DRIVER_SCI, for pads that need to be
configured as GPI, GPIO Driver mode, and SCI interrupt.
Also remove PAD_IRQ_CFG_DUAL_ROUTE macro (subsumed by
PAD_CFG_GPI_IRQ_WAKE).
BUG=none
BRANCH=none
TEST=Compiles
Change-Id: I0332c64e2fa62ce29c772444606adbfdf9c9afc4
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32485
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change removes all the separate entrypoint dispatch
functions as they all share the same pattern.
Furthermore, none of the function definitions under vendorcode
binaryPI/AGESA.c file have proper declarations, the ones compiler
picks up from AGESA.h are for the internal implementations and
with sanely organized headerfiles would not be exposed outside
the build of AGESA at all.
Change-Id: I0b72badc007565740c93b58743cfd048e8b42775
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31485
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
CB acts as I/O handler for QCLib (e.g. DDR training data)
This interface allows bi-directional data flow between
CB and QCLib
Tested and working interfaces:
DDR Training data
QCLib serial console output
DDR Information (base & size)
limits cfg data
TEST=build & run
Change-Id: I073186674a1a593547d1ee1d15c7cd4fd8ad5bc1
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/25208
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
TEST=build & run
Change-Id: I222a56f1c9b74856a1e1ff8132bab5e041672c5d
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/25207
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The current Braswell FSP 1.1 header in vendorcode/intel, for
which there is no publicly available FSP binary, contains silicon
init UPDs which are not found in the publicly available header/binary
in the FSP Github repo. This prevents new boards from being added
which use the public Braswell FSP header/binary.
To resolve this, move the UPDs not found in the public header from
the soc's chip.c to ramstage.c for the boards which use them. Add
a Kconfig option to use the current non-public FSP header and
select it for boards which need it (google/cyan variants); set the
public FSP option as the default. Use the Kconfig option to set
FSP_HEADER_PATH to ensure the correct header is used.
Test: build google/cyan and intel/strago using non-public and
public FSP header/binaries respectively.
Change-Id: I43cf18b98c844175a87b61fdbe4b0b24484e5702
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32381
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This patch adds code to initialize two USB DWC3.0 controllers
and its associated QUSB V2 10nm PHYs to the SDM845 SOC, and uses them to
initialize USB3.0 on the cheza mainboard.
Synopsis controller initialization and configuration sequences taken from
USB 3.0 HPG chapter 2.2 and refer PHY HPG chapter 10.2 for QUSB phy
programming.
Includes Super speed mode support.
TEST=USB keypad and mass-storage device enumeration tested with this patch
Change-Id: I475a7757239acb8ef22a4d61afd59b304a7f0acc
Signed-off-by: Chandana Kishori Chiluveru <cchiluve@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/25213
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Change-Id: I38d086c379a3c2f54d1603a2fed5b33860f7f4d7
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32288
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Change-Id: Idebbbd89de05d949e6f953aa49d8662d64383d1a
Signed-off-by: T Michael Turney <mturney@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32449
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This implementation corrects the GPE DWx mapping for GPIO groups.
The assignments is done in GPIO MISCFG register for all GPIO communities.
And configures the which GPIO communities get register as Tier1.
Change-Id: I9c306d46e5194944def26c24cdb95f5ebada42b8
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32508
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
This patch ports CB:32275 changes from CNL to ICL.
Ice Lake require that FSP-M component should be
XIP. This change selects FSP_M_XIP so that the right arguments are
passed into cbfstool when adding this component.
Change-Id: Icc5550f1f94957fa1b28c8bba6fc0efee98e233e
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32507
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch ports CB:31787 and CB:31908 changes from CNL to ICL.
This change moves soc_fill_power_state and soc_prev_sleep_state to
pmutil.c. It allows the functions to be used across romstage and smm.
Also fix GEN_PMCON bit checks as below:
ICL PCH has PWR_FLR, SUS_PWR_FLR and HOST_RST_STS bits in GEN_PMCON_A
and so this change updates the check for these bits to use GEN_PMCON_A
instead of GEN_PMCON_B.
Change-Id: Ib7ab95b7bbcc97a076d27a11db2105f7b976b521
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32506
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch ports CB:30718 and CB:31908 changes from CNL to ICL.
Add logging of chipset events on boot into the flash event log.
This was tested on a google/dragonegg board to ensure that events
like "System Reset" are added to the log as expected.
Also fix GEN_PMCON bit checks as below:
ICL PCH has PWR_FLR, SUS_PWR_FLR and HOST_RST_STS bits in GEN_PMCON_A
and so this change updates the check for these bits to use GEN_PMCON_A
instead of GEN_PMCON_B.
Change-Id: I25ec32e81f8801f8d5e69c6095ffed73d75dded6
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32504
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
This patch ports CB:31902 changes from CNL to ICL.
The prev_sleep_state value was showing 5 even after warm reboot, once the
SUS_PWR_FLR bit is being set. This bit was not being cleared.
Hence clearing the PMCON status bits.
Change-Id: Ia07aa17b4491216a277c36edfe6ed2aa489287c6
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32503
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Chromebook doesn't require support wake on LAN in S5.
Disable it by default for power saving.
BUG=b:131571666
TEST= check LAN indicator is off under S5
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ia90c9d2f3ea9b3580e9a7bbfb47c917dd51e3c03
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32502
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
For GPIO pads that are configured as no-connect (PAD_NC), setting it
as GPI (with Rx enabled) leads to GPE0_STS being set
incorrectly. Though this is not an issue in practice (GPE0_EN is not
set, so no events triggered), it can confuse users when debugging GPE
related issues.
This change configures PAD_NC to have Rx disabled along with Tx to
ensure that it does not end up setting GPE0_STS bits for unwanted
GPIO pads.
P.S.: IOSSTATE config does not have a TxDRxD setting, so leaving that
configuration as is.
BUG=b:129235068
TEST=Verified that GPE0_STS bits are not set for pads that are marked
as PAD_NC.
Change-Id: I726cc7b86a94e7449352cd8a8806d4d775c593dc
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32514
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>
Increase ramstage to 2M, required to actually embed the 7.2mb uImage
into the coreboot.rom, increase the postram cbfs cache in order for the
fit image to be loadable (without this increase the fit payload is found
but not loaded)
Change-Id: Iee0ed9f7958588ceda54bb32253c84cac68abea2
Signed-off-by: Marty E. Plummer <hanetzer@startmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32373
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
The name OPROM is somewhat inaccurate, since other steps to bring
up display and graphics are needed depending on mainboard/SoC.
This patch cleans up OPROM code nomenclature, and works towards
the goal of deprecating vboot1:
* Rename CONFIG_VBOOT_OPROM_MATTERS to
CONFIG_VBOOT_MUST_REQUEST_DISPLAY and clarify Kconfig
description
* Remove function vboot_handoff_skip_display_init
* Remove use of the VbInit oflag VB_INIT_OUT_ENABLE_DISPLAY
* Add |flags| field to vboot_working_data struct
* Create VBOOT_FLAG_DISPLAY_REQUESTED and set in vboot_handoff
BUG=b:124141368, b:124192753, chromium:948529
TEST=make clean && make test-abuild
TEST=build and flash eve device; attempt loading dev/rec modes
BRANCH=none
Change-Id: Idf111a533c3953448b4b9084885a9a65a2432a8b
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32262
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Trusted Firmware places some components in SRAM on RK3399 and therefore
restricts accesses to SRAM to the secure world. This makes the vboot
working data inaccessible to normal world payloads, so we need to
migrate it into CBMEM.
Change-Id: Ic7c95790f2f118ccbdd897550f13b5f987bdd831
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32490
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Joel Kitching <kitching@google.com>
Implement mt_pll_raise_ca53_freq() in MT8183 to raise the CPU frequency.
Move the function declaration to common header.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: Ide8d767486d68177fa2bfbcc5b559879eca1bcda
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32465
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
With the default CPU voltage (0.8v), CPU frequency should be 1417Mhz at
most. We have to raise CPU frequency to 1989MHz after increasing CPU
voltage to 1.05v in romstage.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: I4c3e0fa27ccda8e0efe422b6ab503a1efb1697e9
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32464
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
If the Intel IGD device pci 02.0 is disabled or undefined in
the device tree, then internal graphics pre-allocated memory
and GFX-VT MMIO memory for virtualization won`t be allocated
in the SoC address space.
Thus, patch resolves the FSP-S hang problem on Skylake/ Kaby
Lake processors when the IGD device is disabled. This should
provide to run FSP 2.0-based coreboot on these CPUs families
without integrated graphics card.
The following boards were used for testing:
- Asrock H110M-DVS board (desktop i5-6600) & NVIDIA GTX 1060
as external GPU.
Virtualization and GFX 3D acceleration with nouveau driver
still works well (tested on VirtualBox 5.1.38 with Ubuntu
18.04.1 as guest and host OS)
- Intel KBL-R U RVP board (mobile i5-8350u) without GFX.
Payload: tianocore edk2-stable201811-216-g51be9d0.
Change-Id: Id7a0cba582d83e3fe7e8d20342ee219cdd369a53
Signed-off-by: Maxim Polyakov <max.senia.poliak@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32467
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Clear the GPI Interrupt Status & Enable registers to prevent any
interrupt storms due to GPI.
BUG=b:130593883
BRANCH=octopus
TEST=Ensure that the Interrupt status & enable registers are reset
during the boot up when the system is brought out of G3, S5 & S3. Ensure
that the system boots fine to ChromeOS.
Change-Id: Ia3b9d3bf08472219348e20b53bae470c589039fb
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32448
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add support to reset the GPI Interrupt Status & Enable registers so that
the system does not experience any interrupt storm from a GPI when it
comes out of one of the sleep states.
BUG=b:130593883
BRANCH=None
TEST=Ensure that the Interrupt status & enable registers are reset
during the boot up. Ensure that the system boots fine to ChromeOS.
Change-Id: I99f36d88cbab8bb75f12ab1a4d06437f837841cb
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32447
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add the offset information for GPI interrupt status and enable register
in the pad_community structure. Populate the concerned information for
individual SoCs. This offset information is required to clear the
interrupt configuration during the bootup.
BUG=b:130593883
BRANCH=None
TEST=Ensure that the interrupt configuration are cleared during bootup.
Ensured that the system boots to ChromeOS.
Change-Id: I8af877a734e8d49b700d720b736da8764985a8f8
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32446
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The ACPI code of LPE device is included regardless of the
availability of the LPE controller.
Linux remains requesting the status of device LPEA even if
this device is disabled.
Include ACPI LPE controller code at Braswell mainboards with
LPE enabled.
BUG=N/A
TEST=Linux 4.17+ on Portwell PQ7-M107
Change-Id: Ic8acf9ea9e9b0ba9b272e20beb2023b7a4716a73
Signed-off-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29414
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Intel's DQ_DQS_RComp_Info_Utility generates data for 6 entries. MRC will
return errors if we don't have all 6 entries in the map.
BRANCH=none
BUG=b:131103736
TEST=ensure the firmware builds without error; I don't have hardware
available to test this just yet.
Change-Id: I20a768de0e4440d7dde7b717794c4e2d0c62819c
Signed-off-by: Paul Fagerburg <pfagerburg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The IRQ tables don't support this path, so we shouldn't report presence
of the legacy PICs. As the _PIC method is optional and we ignore the
passed parameter anyway, drop it.
Change-Id: I51301a600e16f74fde00fdcb4595e1f47a52e207
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29833
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Lance Zhao <lance.zhao@gmail.com>
Update submodule pointer to pull in newly-updated Braswell FSP.
Adjust FSP_FD_PATH for soc/cannonlake due to filename case change.
Change-Id: I02ee0d32fd4c04cd4971eff20fc5a7de3f9b07ec
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32420
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Set CPU frequency from 1100MHz to 1989MHz to improve booting time.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: Id41c7ea8905c4db2537a5c32f96eb7c6b2c008ea
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32397
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The maximum CPU frequency is 1417MHz with current processor voltage
(0.8v). Set processor voltage to 1.05v for higher CPU frequency.
BUG=b:80501386
BRANCH=none
Test=Boots correctly on Kukui
Change-Id: I24ecdac2c85d3f012d9235449c0d727d727dc185
Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32396
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
