Add new libhwbase options and add a class for files generated during
build. This follows the same pattern as for libgfxinit.
Change-Id: Ie5b84992fa687e4e94b6d959a64086c638f66eb8
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/20626
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
There's no need to have these separated.
BUG=b:64932381
Test=Build & Boot
Change-Id: I22898d3bf95d5e9a8fc2643bfccae1e2f5b29e44
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/22184
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This patch adds a column to the print command to show the compression
algorithm used for the file.
Name Offset Type Size Comp
fallback/romstage 0x0 stage 56236 none
ecrw 0xf2380 raw 62162 LZMA (131072 decompressed)
BUG=b:66956286
BRANCH=none
TEST=Run 'cbfstool image.bin print'
Change-Id: I4bbb60ab467adac4ae5486ddafec86ad9682a40e
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://review.coreboot.org/22196
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Using common p2sb driver instead of private one.
TEST=Boot up into OS, and read back registers through PCR by iotools,
return is not 0xffffffff.
Change-Id: I30f3ef7bc37a8cb268af6fe2e4da3ec835c17633
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22191
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Add common p2sb driver support.
TEST=Boot up into OS and read back pcr mmio address by iotools, return
is not 0xffffffff.
Change-Id: Ida66663e6daabfcb94d7e3224d75b118fc7cf829
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22190
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
agesa_LateRunApTask() is not a callback, but a AGESA call. This is a mistake
in the AGESA spec and the function is in the wrong section.
bug=b:66690176, b:67210418
branch=none
test=none
Change-Id: I900e7db13a58e73a7b054e06088bc77c89445876
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22150
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This patch adds the C state and P state configurations for
cannonlake soc.
TEST = Boot and test the CPU states for all the cores are
present in "powertop" tool output.
Change-Id: I4ba156354f87646b25d0f9114ebf0583eedf72df
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/21891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Common PMC code comes with its own.
Change-Id: Ic055f046a2da1c56af4cc7936602d6191ffe7eef
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/22182
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Add new board librem15v3 as a variant of the librem_skl baseboard.
Changes from the librem13v2:
- Change board name and version
- Change GPIO A18, A19, A20, D9, D10 and D11 from NC to GPIO
- Enable PCI device 1c.4
- Change USB port definitions in devicetree
TEST: build w/SeaBIOS, boot PureOS on Librem 15 v3 hardware
Change-Id: I7c762a34f5b961c908e4a29ec331da4b0dea9986
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22048
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
intel/common's pmclib already keeps track of the power state (since
commit f073872e22 and doing it twice can
mess up the data that ends up in cbmem (and from there, everything else),
so don't.
BUG=b:67976359
BRANCH=none
TEST=builds
Change-Id: I69c804a2a3bee43add940d8c827b7250f2fe9024
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/22179
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Convert the Purism Librem13v2 board to a variant setup,
in preparation of adding the librem15v3 as a new variant.
The 13v2 and 15v3 are nearly identical, so this minimizes new
code to add support for the latter.
Change-Id: I5d648cdb8f63c03de5474253203b3d0853673294
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22047
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Change 03a235(soc/intel/apollolake: Add GNVS variables and include SGX
ASL) added new GNVS variables but did not adjust the unused array size
and thus broke chromeos offset.
This change fixes the above issue by reducing the size of unused array.
BUG=b:68254376
TEST=Verified that chromeos offset is correct. crossystem is able to
read all variables.
Change-Id: I279bfc4c702e46b88c1c7a067a24326ff8fed368
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/22177
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Change 90ebf9 (soc/intel/skylake: Add GNVS variables and include SGX
ASL) added new GNVS variables but did not adjust the unused array size
and thus broke chromeos offset.
This change fixes the above issue by reducing the size of unused
array.
BUG=b:68254376
TEST=Verified that chromeos offset is correct. crossystem is able to
read all variables.
Change-Id: I5f76f5bba4f0f50a23a863450743385ad2a82b2b
Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: https://review.coreboot.org/22176
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These macros, broken since day one, should CreateByteField instead
of CreateWordField. Without the fix, any ASLs that try to use it
will fail to compile with a "ResourceTag smaller than Field"
warning.
Change-Id: Ieeb509aece8836785998b23fdc805a747d40a77a
Signed-off-by: Keith Hui <buurin@gmail.com>
Reviewed-on: https://review.coreboot.org/22066
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Allows explicit ordering for vendors that share a common configuration
that must be sourced last.
The issue is that chips in soc/{amd,intel}/[ab].* will be able to
override defaults set in this file, but Kconfig files that get sourced
later (soc/amd/[d-z].*) will NOT be able to override these defaults.
Note: intel and amd soc chips now need to be added manually to the new
Kconfig file
BUG=b:62235314
TEST=make lint-stable
Change-Id: Ida82ef184712e092aec1381a47aa1b54b74ed6b6
Signed-off-by: Chris Ching <chingcodes@google.com>
Reviewed-on: https://review.coreboot.org/22123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
It seems that recent changes in coreboot have fixed the raminit issues
on this board; the workaround of 10 ms delay after the S3 resume is not
needed anymore and can be removed.
Change-Id: If8fb97ecf3eb797f53270a053201fafd32031678
Signed-off-by: Nicola Corna <nicola@corna.info>
Reviewed-on: https://review.coreboot.org/21485
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
Although Intel's current spec[1] shows the OpRegion structure version
as being the top 16 bits of the field, Intel's Windows drivers
require the OpRegion structure version to be in the top 8 bits of
the field when not using a VGA BIOS (eg, NGI or GOP driver).
As the Linux i915 driver only checks that the version is >= 2,
there is no change in functionality there.
This change effectively matches Intel's implementation in TianoCore,
where the version is set to 0x0200 << 16.
[1] https://01.org/sites/default/files/documentation/skl_opregion_rev0p5.pdf
TEST: Boot Windows [8.1,10] in UEFI mode w/GOP graphics init and
Legacy mode with libgfxinit, observe Intel GPU driver functional.
Change-Id: Ic2903ee4829689ec4117aec93dce0b87cec6f313
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22118
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Migrate the Librem13v2 from using FSP 1.1 to
the public/GitHub FSP 2.0 Skylake/Kabylake release:
- select FSP 2.0 in Kconfig
- adjust romstage/ramstage functions as required
- refactor pei_data functions
- remove VR_RING domain from devicetree (unsupported in FSP 2.0)
- add SataSpeedLimit parameter to work around power-related issue
when operating at SATA 6.0Gbps speed
TEST: build/boot Librem13v2, observe successful boot, lack of
SATA-related errors in dmesg.
Change-Id: Iedcc18d7279409ccd36deb0001567b0aa5197adf
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22046
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Backtracking stack used BEFORE each function call:
1. cbfs_boot_locate(&file_desc, "vbt.bin", NULL): 4104 (stack overrun)
2. locate_vbt: 4068
3. vbt_get: 4036
4. platforms_fsp_silicon_params_cb: 3924
5. do_silicon_init(&fsps_hdr): 3684 (3684-1092=2592 due to fsps)
6. fsp_silicon_init: 1092
Increase the stack size from 4kiB to 8kiB to prevent stack overrun.
TEST=No stack overrun is observed and it boots to OS properly.
Change-Id: I7e458b4489cea32449f197621ec81009ea7dd0bd
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/21977
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Port the ACPI opregion implementation that resides in
drivers/intel/gma to older platforms. It allows to include a vbt.bin and
allows GNU/Linux to load the opregion as ASLB is being set.
Windows' Intel will likely ignore it as it relies on legacy VBIOS
to be loaded at 0xc0000.
Change-Id: Ifc9fc52d84dcbb0da577e61467ece8a48752f44b
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/21775
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Instead of setting "peci_tmpin" in the devicetree, THERMAL_PECI is now
a mode of TMPIN like THERMAL_RESISTOR and THERMAL_DIODE. Since the logic
to set temperature offsets and limits is in the function that sets
thermal modes, it makes sense to treat PECI as yet another mode.
As of this commit, there are no boards that actually use peci_tmpin from
ite/common. There are three boards that have a similar device tree
option, but those boards use it8772f, which implements all superio
functions on its own.
The first user will probably be Gigabyte GA-Z77-DS3H.
Change-Id: I39da50c124ad767f8681302733cf004622975e81
Signed-off-by: Vagiz Trakhanov <rakkin@autistici.org>
Reviewed-on: https://review.coreboot.org/22076
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Add devicetree options to set temperature limits that are used to alarm
user when temperature exceeds defined values.
Audio alerts by superio are not implemented yet, but since limits are
visible to userland, some software might use them as is. For instance,
lm-sensors displays "ALERT" when temperature exceeds limits.
Change-Id: I56e041fb78f518d6a9640dc2b3985459991242b9
Signed-off-by: Vagiz Tarkhanov <rakkin@autistici.org>
Reviewed-on: https://review.coreboot.org/21844
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Add a devicetree option to set temperature adjustment registers
required for thermal diode sensors and PECI. However, this commit does
not have the code needed to make PECI interface actually use these
registers. It only applies to diodes.
As a temporary workaround, one can set both THERMAL_DIODE and peci_tmpin
to the same TMPIN, e.g. TMPIN3.mode="THERMAL_DIODE" and peci_tmpin="3".
PECI, apparently, takes precedence over diode, so the adjustment register
will be set and PECI activated. Or simply use the followup patch, which
makes THERMAL_PECI a mode like THERMAL_DIODE.
I don't have hardware to test THERMAL_DIODE mode, but in case of PECI,
without this patch I had about -60°C on idle. Now, with offset 97,
which was taken from vendor bios, PECI readings became reasonable 35°C.
TEST=Set a temperature offset, then ensure that the value you set is
reflected in /sys/class/hwmon/hwmon*/temp[1-3]_offset
Change-Id: Ibce6809ca86b6c7c0c696676e309665fc57965d4
Signed-off-by: Vagiz Tarkhanov <rakkin@autistici.org>
Reviewed-on: https://review.coreboot.org/21843
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit just moves the vboot sources into
the security directory and fixes kconfig/makefile paths.
Fix vboot2 headers
Change-Id: Icd87f95640186f7a625242a3937e1dd13347eb60
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/22074
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
The Librem13v2 needs to set this parameter to work around
power-related issues with some SATA devices.
Change-Id: I7fcef36ec8662e18834394b72427a0633c6b7e92
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22045
Reviewed-by: Youness Alaoui <snifikino@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Microcode blob has been updated, so update the length to match
Change-Id: I46ac10e5c6cd6492c98a7034649797f301101abc
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/22044
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The USB settings were wrong in some places, or missing and the
USB_OC values were taken from the schematics.
Change-Id: I29b564a4161c486f5e8556b1726471bfa2351b7a
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/22043
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Martin Roth <martinroth@google.com>
The RComp values have been updated to match what is shown in the schematics.
Extracting the Memory configuration blob from the original BIOS (A blob
which contains the correct binary sequence matching the RComp values appears
in object with GUID 2D27C618-7DCD-41F5-BB10-21166BE7E143), I could find
and confirm the DQ and DQS mapping.
Small code cleaning in romstage.c with no effect.
Change-Id: I35c734269b365fd759e9bd56224a80a8a8df5a57
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/22041
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Check CBFS for 'serial_number' field, and use value if exists;
otherwise use value set at compile time.
Change-Id: I4b50f6310ca32b9dd372db075a5b5729e3b06619
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/22040
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Using ifdtool to change layout on a 'ifd v2' file causes an error
about region type 5 not being valid.
The limit to check against is dynamic depending on ifd version, not
static.
Change-Id: Id4cdce4eac18fb0d171d1bdfa2044340bf93056a
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/21962
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
The ME status is the interpretation of the status registers, but
having the actual status registers printed is important and it doesn't
hurt to show them.
Change-Id: I6ef3401b36fedfa8aed14f4a62bdbec3d8c6d446
Signed-off-by: Youness Alaoui <youness.alaoui@puri.sm>
Reviewed-on: https://review.coreboot.org/21960
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Add the missing device and ensure it shows up in the devicetree prior
to PCI enumeration.
Change-Id: Ia2c4ba1200422b36c533e86065a4fcd10c4b2722
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22055
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add the missing device and ensure it shows up in the devicetree prior
to PCI enumeration.
Change-Id: I44c7df6a2be149ed61094f67ef1c578736e5b55c
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22054
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Remove the check for CONFIG_VBOOT when finding the binaryPI blob and
rely on the cbfs search 100% of the time. The change was initially
put in to avoid a hang when vboot presearched memory for the blob.
The implementation now supports early cbmem init and cbmem_top() is
careful to return 0 if DRAM has not yet been set up. As a result the
hang no longer occurs and the hack may be removed safely.
BUG=b:67747902
Change-Id: I1f38709fcce250b0902a639ebf0554219bc47cf8
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22053
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
There are still Ethernet drivers out there in the wild which expect
that the master enable bit was set by firmware. A missing master
enable bit will lead to a non-functional driver. Though it is clear the
task of the driver to set this bit it is too late now. So work around
this issue on firmware level...again!
Change-Id: I677b22c643b73634b1a2129d948b991446e1f8fd
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/22036
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Add GPE configuration table.
Remove GPE3 from the power button ASL and set the EC to GPE3(AGPIO22).
Set the EC and PCIE/WLAN SCI GPIO signals.
Set GPE ASL methods for:
PCIE/WLAN 8h
EHCI 18h
XHCI 1fh
Note EC GPE3 methods are in the EC ASL.
BUG=b:63268311
BRANCH=none
TEST=Test lidswitch powers the device on and off at the login screen.
Change-Id: I27c880ee84b6797d999d4d5951602b654ede948e
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/22096
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add printout before EC hibernates during a cr50 update to clarify that
failure is due to EC rather than cr50. Ran into a situation where DUT
shut down during cr50 update and the EC was the culprit.
BUG=None
BRANCH=None
TEST=None
Change-Id: I54813fec123de69604d1da4dfc65eaeb77d1662e
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/22120
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Set PL2 based on either 90% of usb c charger's max power or sku id if
using a barrel jack.
BUG=b:37473486
BRANCH=None
TEST=output debug info for different skus and make sure
PL2 set correctly.
Change-Id: I487fce4a5d0825a26488e71dee02400dbebbffb3
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/21772
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Add google_chromeec_get_usb_pd_power_info(), which will
call the EC_CMD_USB_PD_POWER_INFO host command to retrieve
the current and voltage info of the usb c charger.
Returns power info in watts.
BUG=b:37473486
BRANCH=None
TEST=output debug info to make sure that correct power
is returned.
Change-Id: Ie14a0a6163e1c2699cb20b4422c8062164d92076
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://review.coreboot.org/21771
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
The arrays of gpio_t are not manipulated in any way within the
gpio library. Add const to indicate that.
Change-Id: Ie32ab9de967ece22317e2b97b62e85b0757b910d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/22121
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>