When caching the BIOS ACM, one must cache less than a page (4 KiB) of
unused memory past the end of the BIOS ACM. Failure to do so on Haswell
will result in a lovely TXT reset with Class Code 5, Major Error Code 2.
The current approach uses a single variable MTRR to cache the whole BIOS
ACM. Before fighting with the variable MTRRs in assembly code, ensure
that enough variable MTRRs exist to cache the BIOS ACM's size. Since the
code checks that the ACM base is aligned to its size, each `one` bit in
the ACM size will require one variable MTRR to properly cache the ACM.
One of the several BIOS ACMs for Haswell has a size of 101504 bytes.
This is 0x18c80 in hexadecimal, and 0001 1000 1100 1000 0000 in binary.
After aligning up the BIOS ACM size to a page boundary, the resulting
size is 0x19000 in hexadecimal, and 0001 1001 0000 0000 0000 in binary.
To successfully invoke said ACM, its base must be a multiple of 0x20000
and three variable MTRRs must be used to cache the ACM. The MTRR ranges
must be contiguous and cover 0x10000, 0x8000, 0x1000 bytes, in order.
The assembly code is updated in a follow-up, and relies on these checks.
Change-Id: I480dc3e4a9e4a59fbb73d571fd62b0257abc65b3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46422
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This patch adds some Kconfig hints to make it clearer that the
USE_QC_BLOBS option is required for SC7180 boards and guide the user in
the right direction through menuconfig. Also add those little arrows to
the Trogdor board options that are there on most other boards.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I973cae8026a229408a1a1817c4808b0266387ea7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45214
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Philip Chen <philipchen@google.com>
msr_set_bit can only set single bits in MSRs and causes mixing of bit
positions and bitmasks in the MSR header files. Thus, replace the helper
by versions which can unset and set whole MSR bitmasks, just like the
"and-or"-helper, but in the way commit 64a6b6c was done (inversion done
in the helper). This helps keeping the MSR macros unified in bitmask
style.
In sum, the three helpers msr_set, msr_unset and msr_unset_and_set get
added.
The few uses of msr_set_bit have been replaced by the new version, while
the used macros have been converted accordingly.
Change-Id: Idfe9b66e7cfe78ec295a44a2a193f530349f7689
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46354
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This configuration option shares a name with the FSP UPD, but
is enumerated differently. Change its name to minimise confusion
about the options.
Change-Id: Id74f043ecd549bde4501320bff1dc080bde64057
Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45001
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Fix DSM function 0 (query function) to correctly report function support
for its revision. Revision 1 should return 0x3 because I2C HID supports
only 1 additional function. All other revisions should return 0.
BUG=b:170862147
BRANCH=Zork
TEST=ensure no dmesg errors; disassemble and verify SSDT
Signed-off-by: Josie Nordrum <JosieNordrum@google.com>
Change-Id: Iee082ef5cf44c4cf7ab304345af56f3b5173ca56
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46429
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Berknip has SSD/eMMC SKU, we should turn off eMMC if storage is NVMe SSD.
BUG=b:170592992
BRANCH=zork
TEST=1. emerge-zork coreboot
2. Check eMMC is enabled or disabled based on the eMMC bit in
FW_CONFIG.
Change-Id: I7aeabc98fc16bc2837c8dcdc40c3c6a80898cdc9
Signed-off-by: Kevin Chiu <kevin.chiu@quantatw.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46292
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
TEST=Build and test booting ADL RVP form NVMe and Optane
localhost ~ # lspci -d :f1a6
Show all the NVMe devices and be really verbose
localhost ~ # lspci -vvvd :f1a6
Print PCIe lane capabilities and configurations for all the NVMe devices.
Change-Id: I0a04b23b17df574d4fa3bae233ca40cd3b104201
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46420
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
A regular M.2 NVMe SSD shows up on RP9 and runs at x4 width.
Optane memory module shows up as 2 NVMe devices in x2 config:
- NVMe storage device uses RP9
- NVMe Optane memory uses RP11
Note: These two devices are sharing CLK PINs because of same M.2 slot.
TEST=Build and boot ADL RVP board using Intel Optane card.
Change-Id: Ia21d7d2fd07c4fb32291af7bb5a2e41e40316278
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46419
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This patch programs GPIO for PCH SSD Power Enable (GPP_D16) and Port
Detect (GPP_A12) as per schematics.
TEST=Able to build and boot ADL RVP.
Change-Id: I015e46bdf25437c6b196deb3e610bc1b58726070
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46417
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Prepare for common ACPI. Add get_system_memory_map() helper
function to soc_util.c and use it in the SRAT ACPI code
to match the cpx code.
Change-Id: I54675b52aaf2999d884b3c20ccb143fbbf8b138a
Signed-off-by: Marc Jones <marcjones@sysproconsulting.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45847
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Jay Talbott <JayTalbott@sysproconsulting.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change copies ec_commands.h from Chromium OS EC repo at 7b6cb69db.
The change also drops unneeded empty lines and coverts license header
to SPDX style.
BUG=b:147789962
BRANCH=none
TEST=emerge-asurada coreboot
Change-Id: I9816dab5edb418e76896355a0802c59307c664c4
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46403
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Add Michael Niewöhner as another maintainer for Clevo mainboards.
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: Id3b35ddda13119149321e8c883e151176d8c520d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43655
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This needs to be saved and restored, otherwise the BSP might have an
inconsistent MTRR setup with regards to the AP's which results in
weird errors and slowdowns in the operating system.
TESTED: Fixes booting OCP/Deltalake with Linux 5.8.
Change-Id: Iace636ec6fca3b4d7b2856f0f054947c5b3bc8de
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46375
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
While MRC.bin does not allocate any memory for DPR by default, it can be
patched to do so. However, the current northbridge code does not account
for DPR and will, among other things, place CBMEM inside it. Even though
this may seem like a good thing, it renders TianoCore unable to boot and
clashes with Intel TXT support (the reason to enable DPR to begin with).
Update memmap.c so that CBMEM top does not fall within DPR. Also, report
DPR as reserved, so that OSes know that the DPR memory is not to be used.
Change-Id: I11f23fd43188f987e35fd61f52587e567496cd78
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45712
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This function is available for all TXT-capable platforms. Use it.
As it also provides the size of TSEG, display it when logging is on.
Change-Id: I4b3dcbc61854fbdd42275bf9456eaa5ce783e8aa
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46055
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Exposes PcieRpL1Substates to devicetree to allow boards to override this configuration.
Tested on an Acer Aspire VN7-572G (Skylake-U).
Change-Id: I36150858485715016158595c832c142b0582ddb8
Signed-off-by: Benjamin Doron <benjamin.doron00@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39538
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This comment does not follow any of the styles outlined in the coding
style page of the documentation. Adjust it to match the preferred style.
Change-Id: Idf6d0ea69a08e378266b4256c476580889adfca8
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46428
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
HybridStorageMode FSP UPD needs to be set only for optane storage.
Enabling HybridStorageMode causes some extra delay in FspSiliconInit due
to HECI command and hence is avoided for NVMe and SATA scenerios. This
change disables "HybridStorageMode" for volteer baseboard. For boards
using optane HybridStorage needs to be enabled from overwrite devicetree.
We are enabling HybridStorage for volteer and volteer2 as those plaforms
have SKU's with optane storage.
BUG=b:158573805
TEST=Build and boot non optane device and confirm that FspSiliconInit
time is reduced. This saves ~100ms.
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Change-Id: I54fc78e3f888d4f2a02ba0ad6b9aef33eb872a9c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45643
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
List of changes:
1. Add devicetree.cb config parameters related to FSP-S UPD
2. Configure GPIO as per ADL-P RVP
3. Add files required for ramstage(ec.c, mainboard.c)
4. Add smihandler.c for SMM
5. Add devicetree changes as below
- USB OC PIN programing
- GPE configuration
- SATA port mapping
- LPSS configuration
- Audio configuration
- IA common SoC configuration
- EDP configuration
- TCSS USB configuration
- Enable S0ix
TEST=Able to boot ADL-P RVP without Chrome EC (using on-board EC) with
UART log over legacy UART0 port as 0x3f8 with NVME at RP9 reach till
depthcharge payload.
Change-Id: I120885956c88babfa09d24ce1079d49306919b8a
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46265
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
These files are usually binaries, and should never be committed.
Change-Id: I9df80f777020632e4c82a06ae3ae73c95234f3b5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46322
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
There's no need to have implementation details in a public header.
Tested with BUILD_TIMELESS=1, Asus P5QL PRO remains identical.
Change-Id: I04d8c610d3e52adecfe96cc435f0523bedf3060a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45424
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Move all files with register definitions into a `registers` subfolder.
Subsequent commits will move the remaining registers into this folder.
Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change.
Change-Id: I74dbd985b980d8a42bfaf2984820005320a803d3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45421
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These settings are not necessary for DDR4 and can be dropped.
Change-Id: I1946be239f0c90db995a60570474039cef45cfa9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46251
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Several registers have been copy-pasted from i945 and do not exist on
Eagle Lake. Moreover, other register definitions were missing. Use the
newly-added definitions in existing code, in place of numerical offsets.
Tested with BUILD_TIMELESS=1, Asus P5QL PRO does not change.
Change-Id: I9582d159aa2344bcf261f0e4b97b15787156f6e7
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45422
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
These aren't used anywhere, so get rid of them.
Change-Id: I267c0fd2e9d9d20ee852a73a9a916d85d6c65088
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45716
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Tested with BUILD_TIMELESS=1, Google Wolf does not change.
Change-Id: Ibd8430352e860ffc0e2030fd7bc73582982f4695
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45698
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This makes comparisons against Haswell a bit simpler.
Change-Id: If1c937628f702c6765a5f36b6eaf4a3c3516359a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46323
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This change is required for use-cases like GPIO based I2C multiplexer
where more than one GPIOs are used as select lines.
BUG=b:169444894
TEST=Build and boot waddledee to OS. Ensure that the GPIO bindings for
an array of GPIOs are added to the ACPI table as follows:
Device (MUX0)
{
...
Name (_CRS, ResourceTemplate () // _CRS: Current Resource Settings
{
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
"\\_SB.PCI0.GPIO", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0125
}
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
"\\_SB.PCI0.GPIO", 0x00, ResourceConsumer, ,
)
{ // Pin list
0x0126
}
})
Name (_DSD, Package (0x02) // _DSD: Device-Specific Data
{
ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Device Properties for _DSD */,
Package (0x01)
{
Package (0x02)
{
"mux-gpios",
Package (0x08)
{
\_SB.PCI0.I2C3.MUX0,
Zero,
Zero,
Zero,
\_SB.PCI0.I2C3.MUX0,
One,
Zero,
Zero
}
}
}
})
}
Change-Id: I7c6cc36b1bfca2d48c84f169e6b43fd4be8ba330
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46056
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Add tcc, critical, passive policy, and pl values from thermal team.
BUG=b:169215576
TEST=build and verify by thermal tool
Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Change-Id: I4f61eaa7eab2b86b04ff0541886621afb3082b1a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45784
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
EC being the TCPM decides the mux configuration after negotiating with the
port partner on the Type-C port. The APIs added here will give the
current essential mux state information for a given port.
BUG=None
BRANCH=None
TEST=Built coreboot image and verified that using this patch mux is being
set for display during boot
Change-Id: If994a459288ef31b0e6da8c6cdfd0ce3a0303981
Signed-off-by: Divya Sasidharan <divya.s.sasidharan@intel.com>
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42078
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
In order for USB Type-C devices to be detected prior to loading Kernel
PMC IPC driver API is needed to send IPC commands to the PMC to update
connection/disconnection states.
BUG=b:151731851
BRANCH=none
TEST=built coreboot image and booted to Chrome OS
Change-Id: Ide3528975be23585ce305f6cc909767b96af200f
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42077
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Enables Pcie M.2 support for WWAN and disable M.2 USB.
RP4 is already on and PcieRpEnable[3] is enabled. Clock source 2 is already
configured. Added missing gpio configuration.
BUG=none
TEST=Boot to OS, check WWAN functionality
Change-Id: Ie9b7915062b2ef65d881d478e64322c0b8765614
Signed-off-by: Bora Guvendik <bora.guvendik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45828
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
List of changes:
1. Select CONFIG_INTEL_TME from SoC Kconfig
2. Set TmeEnable FSP-M UPD based on Kconfig.
TEST=Able to build and boot ADLRVP and verified from Chrome OS
that TME is enable.
Change-Id: I6992957bd2999a2efbae7b6d9c825c43bd118f72
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46296
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: V Sowmya <v.sowmya@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This change enables the USB4/Thunderbolt common layer for Intel SOC,
and enables the Intel USB4 PCIe driver. This moves the _DSD variables
from the DSDT into the SSDT and allows them to be configured for each
board if necessary.
Change-Id: I2564512d951046e015c148db42fdaf2d4b8b81dd
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44917
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This driver will generate the ACPI _DSD for the USB4 PCIe root port
properties instead of using static ASL.
It assigns the USB4 port number and marks the port as external and
hotplug capable.
Change-Id: I7086b06346ce63fab6bef4077fb76ae1d30dc1eb
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44915
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This common intel driver will add the requried ACPI _DSD entries for
enabled USB4/Thunderbolt ports' DMA devices the SSDT instead of using
hardcoded values in the DSDT.
Change-Id: Ic4a58202d4569cf092ea21a4a83a3af6c42ce9d0
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44916
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
In order to enable SSDT generation for the DMA component of Intel USB4
ports, a PCI driver is required. This patch more or less adds a
`scan_bus` callback that will handle non-PCI devices downstream.
Change-Id: Ib9da051307b883eb99e500114378c9fd842ffc92
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46141
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Angel Pons