CONFIG_MAX_PCIE_CLOCKS renamed to MAX_PCIE_CLOCK_SRC to make it clear that this config
is for the number of PCIe Clock sources available which is different from PCIe clock reqs.
This is more relevant in alderlake, as the number clock source and clock reqs differ.
However since this is a better name, renaming it throughout the soc/intel tree.
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Change-Id: I747c94331b68c4ec0b6b5a04149856a4bb384829
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52194
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The VT-d specification states that device scope for remapping hardware
unit which has DRHD_INCLUDE_PCI_ALL flags must be the last in the list
of hardware unit definition structure. This change fixes the devices
list in the DMAR DRHD structure.
BUG=b:185631878
TEST=Built image and booted to kernel on Voxel board.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I408fac7ff1185f4aa87bc4ffac7f25e31a4802b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52476
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
DPTF HIDs are different per-platform going forward, so refactor these
into SoC-specific structures which the DPTF driver can query at runtime
for platform-specific information.
Change-Id: I6307f9d28f4274b851323ad69180ff4ae35053da
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52220
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
On VCCin there was an oscillation which occurred just as the kernel
started (kernel starting... message). On some devices, this behavior
seems even worse. In previous platforms VCCin toggled for a few ms
and then was stable. For volteer, this happens at the same point in
time for around 40ms. However, it starts oscillating again later in
the boot sequence. Once at the root shell, it seems to oscillate
indefinitely at around 100-200Hz (very variable though). To fix this
we need to control the deep C-state voltage slew rate.We have options
for controlling the deep C-state voltage slew rate through FSP UPDs.
This patch expose the following FSP UPD interface into coreboot:
- AcousticNoiseMitigation
- FastPkgCRampDisable
- SlowSlewRate
We are setting SlowSlewRate for all volteer boards to 2 which is Fast/8.
TGL has a single VR domain(Vccin). Hence, the chip config is updated to
allow mainboards to set a single value instead of an array and FSP UPDs
are accordingly set.
BUG=b:153015585
BRANCH=firmware-volteer-13672.B
TEST= Measure the change in noise level by changing the UPD values.
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Change-Id: Ica7f1f29995df33bdebb1fd55169cdb36f329ff8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50870
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
REG_BASE_SIZE is supposed to represent the size of the REGBAR MMIO space
in KiB. It is currently sized at 4MiB, but this is incorrect, EDS Vol. 2
indicates REGBAR is 16MiB in size, therefore update the constant to
reflect this.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I0cfbe5b8bb07faa854efd4bf70640daa117f2bb2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51754
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The Type-C subsystem ("TCSS") IP block is similar between TGL and
ADL. For pre-boot purposes, the limited amount of functionality required
appears to be common between the two, therefore move the functionality
to intel/common/block and rename from `early_tcss to `tcss` along the way.
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I1c6bb9c7098691f0c828f9d5ab4bd522515ae966
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51753
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Lists of changes:
1. Rename MISCCFG_ENABLE_GPIO_PM_CONFIG -> MISCCFG_GPIO_PM_CONFIG_BITS
2. Move MISCCFG_GPIO_PM_CONFIG_BITS definition from intelblock/gpio.h to
soc/gpio.h. Refer to detailed description below to understand the
motivation behind this change.
An advanced GPIO PM capabilities has been introduced since CNP PCH,
refer to 'include/intelblock/gpio.h' for detailed GPIO PM bit definitions.
Now with TGP PCH, additional bits are defined in the MISCCFG register
for GPIO PM control. This results in different SoCs supporting
different number of bits. The bits defined in earlier platforms
(CNL, CML, ICL) are present on TGL, JSL and ADL too. Hence, refactor the
common GPIO code to keep the bit definitions in intelblock/gpio.h, but
the definition of MISCCFG_GPIO_PM_CONFIG_BITS is moved to soc/gpio.h so
that each SoC can provide this as per hardware support.
TEST=On ADL, TGL and JSL platform.
Without this CL :
GPIO COMM 0 MISCCFG:0xC0 (Bit 6 and 7 enable)
With this CL :
GPIO COMM 0 MISCCFG: 0x00 (Bit 6 and 7 disable)
Change-Id: Ie027cbd7b99b39752941384339a34f8995c10c94
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51767
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
There is no PCI host interface for this version of CNVi BT.
CNVi BT on Tigerlake is an USB device.
Change-Id: Ib71a827c36dfac55c3e5ce586b00a26fc6264464
Signed-off-by: Cliff Huang <cliff.huang@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50900
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
FSP has added the Cnvi BT Core enabling in addition to the existing
CnviMode. This change adds the flag at the soc config side (i.e.
soc_intel_tigerlake_config for devicetree). Also, there is no longer PCI host
interface for BT. Therefore, BT core should not use the pci port status to turn
on/off.
TEST: BT enumeration is checked using 'lsusb -d 8087:0026' from OS to make
sure BT is turned on.
Change-Id: I71c512fe884060e23ee26e7334c575c4c517b78d
Signed-off-by: Cliff Huang <cliff.huang@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50897
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
UART pad configuration should not be done in common code, because that
may cause short circuits, when the user sets a wrong UART index.
Since all boards do pad setup on their own now, finally drop the pad
configuration from SoC common code.
Change-Id: Id03719eb8bd0414083148471ed05dea62a895126
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48829
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lance Zhao
TCSS muxes being left uninitialized during boot is causing some USB3
devices to downgrade to USB2 speed. To properly configure the Type C ports
the muxes should be set to disconnected state during boot so that the port
mapping of USB2/3 devices is properly setup prior to Kernel initializing
devices.
BUG=b:180426950
BRANCH=firmware-volteer-13672.B
TEST= Connected USB3 storage device and rebooted the system multiple
times to verify that devices were no longer downgrading to USB2 speed.
Change-Id: I4352072a4a7d6ccb1364b38377831f3c22ae8fb4
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51194
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The original implementation of early tcss resulted in calling to mainboard
then back to soc then back to mainboard to properly configure the muxes.
This patch addresses that issue and instead just gets all the mux
information from mainboard and does all config in the soc code.
BUG=none
BRANCH=firmware-volteer-13672.B
TEST=Verified functionality is not effected and early TCSS still functions
Change-Id: Idd50b0ffe1d56dffc3698e07c6e4bc4540d45e73
Signed-off-by: Brandon Breitenstein <brandon.breitenstein@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47684
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
`pmc_send_ipc_cmd()` expects the caller to pass in a pointer to a valid
request and response buffer. However, early_tcss driver was passing in
a NULL pointer for response buffer which would result in invalid
access by `pmc_send_ipc_cmd()`.
Currently, the response buffer is not used in `update_tcss_mux()`. So,
this change drops the passing of `rbuf` parameter to `send_pmc*`
helpers and instead uses a local `rsp` variable in the respective
functions. All the PMC functions used in early_tcss driver return some
kind of response. These should be checked to return appropriate
response code back to the caller. However, this needs to be done as a
separate change.
Change-Id: I215af85feed60b6beee17f28e3d65daa9ad4ae69
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51232
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
There are seven identical copies of the same file. One is enough.
Change-Id: I68c023029ec45ecfaab0e756fce774674bb02871
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50937
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
TEL_CFG_BAR variables have the same value as PCI_BASE_ADDRESS.
This fix re-uses an already existing variable in crashLog.
BUG=None
TEST=CrashLog data generated, extracted, processed, decoded sucessfully on delbin.
Signed-off-by: Francois Toguo <francois.toguo.fotso@intel.com>
Change-Id: If063d1ea4189dbc5a75f37d86ce158e8f1bd808d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The `FORCE_ENABLE` and `FORCE_DISABLE` names do not match what FSP UPDs
say, and can be confused with the `PchHdaTestPowerClockGating` UPD.
Replace the enum with a bool, and drop the confusing names. Note that
the enum for Ice Lake was incorrect, but no mainboards used the option.
Change-Id: I2c9b4c6a2f210ffca946ca196299fa672a06ccc7
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51154
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
It only calls `smbus_common_init()`, so just call that directly.
Change-Id: I0237f52bb9b0503e83f5dbf31c4064bd0f5bae28
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50947
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The iGPU is on the northbridge or system agent, not the southbridge.
Change-Id: Ic63a7ad532fd1faa8e90d44bf7269040fa901757
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49123
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Since Elkhart Lake and Alder Lake use alphabetical ordering, apply that
to the other platforms. Now there are only two versions of smmrelocate.c
across seven different platforms. They will be unified in follow-ups.
Change-Id: I5425323a6d4eecaa97916b6f2683dff57392157c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50935
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Use the same log message everywhere for consistency.
Change-Id: I9d2230bc92313269470839486f6644f16e837d7c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50934
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Post boot SAI PCR access to ITSS polarity regsiter is locked.
Restore of ITSS polarity does not take effect anyways. Hence
removing the related programming.
Change-Id: I1adab45ee903b9d9c1d98a060143445c0cee0968
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51002
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tigerlake TBT only has SW CM support. The polling for "LA == 1" is not
applicable for SW CM platform at the resume sequence. This change
removes the pollng for "LA == 1" to improve resume performance.
BUG=b:177519081
TEST=Boot to kernel and validated s0ix on Voxel board.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I886001f71bf893dc7eda98403fa4e1a3de6b958e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50806
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Send end of post message to CSME in FSP, by selecting EndOfPost
message in PEI phase. In API mode which coreboot currently uses,
sending EndOfPost message in DXE phase is not applicable.
BUG=b:180755397
TEST=Extract and copy MEInfo tool from CSME Fit Kit to voxel, execute
./MEInfo | grep "BIOS Boot State"
and confirm response shows BIOS Boot State to be "Post Boot".
Change-Id: I1ad0d7cc06e79b2fe1e53d49c8e838f4d91af736
Signed-off-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51012
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
CrashLog is a diagnostic feature for Intel TGL based platforms.
It is meant to capture the state of the platform before a crash.
The state of relevant registers is preserved across a warm reset.
BUG=None
TEST=CrashLog data generated, extracted, processed, decoded sucessfully on delbin.
Signed-off-by: Francois Toguo <francois.toguo.fotso@intel.com>
Change-Id: Ie3763cebcd1178709cc8597710bf062a30901809
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49943
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
With chipset_power_state filled in romstage CBMEM hooks and
GNVS allocated early in ramstage, GNVS wake source is now
also filled for normal boot path.
Change-Id: I2d44770392d14d2d6e22cc98df9d1751c8717ff3
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50004
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This change uses the following information to determine the
appropriate S0ix states to enable as per PDG document: 607872
for TGL UP3 UP Rev2p2 (section 10.13):
1. SoC - UP3 v/s UP4
2. H/W design - external phy gating, external clk gating, external bypass
3. Devices enabled at runtime - CNVi, ISH
In some cases, it is recommended to use a shallower state for
S0ix even if the higher state can be achieved (e.g. with external
gating not enabled). This recommendation is because the shallower
state is determined to provide better power savings as per the
above document. Deepest state expected on tigerlake up3 based
platforms is S0i3.2.
BUG=b:177821896
TEST=Build coreboot for volteer. Verify that deepest
S0ix substate that is enabled is S0i3.1
Signed-off-by: Shreesh Chhabbi <shreesh.chhabbi@intel.corp-partner.google.com>
Change-Id: I5f2ac8b72d0c9b05bc02c092188d0c742cc83af9
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49766
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
ACPI S3 is a global state and it is no longer needed to
pass it as a parameter.
Change-Id: Id0639a47ea65c210b9a79e6ca89cee819e7769b1
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50360
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
The only reference to CID1 is in common/acpi/wifi.asl and
only two braswell boards include it. Everywhere else
the value in GNVS was unused.
Change-Id: I09ea756fb3743e33d1e221f0a0df3a6fdc3fc3ba
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50297
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Add support for MP services2 PPIs, which is slight modification
over MP services 1 PPIs. A new API StartupAllCPUs have been added
to allow running a task on BSP and all APs. Also the EFI_PEI_SERVICES
parameter has been removed from all MP PPI APIs.
This implementation also selects the respective MP services PPI version
supported for SoCs
BUG=b:169196864
Change-Id: Id74baf17fb90147d229c78be90268fdc3ec1badc
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This change drops the config FSP_PEIM_TO_PEIM_INTERFACE.
FSP_PEIM_TO_PEIM_INTERFACE is used for:
* Auto-selecting FSP_USES_MP_SERVICES_PPI
* Including src/drivers/intel/fsp2_0/ppi/Kconfig
* Adding ppi to subdirs-y
* Setting USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI to y
and is selected by SoCs that want to enable MP PPI services.
Instead of using the indirect path of selecting MP PPI services, this
change allows SoC to select FSP_USES_MP_SERVICES_PPI directly. The
above uses are handled as follows:
* Auto-selecting FSP_USES_MP_SERVICES_PPI
--> This is handled by SoC selection of FSP_USES_MP_SERVICES_PPI.
* Including src/drivers/intel/fsp2_0/ppi/Kconfig
--> The guard isn't really required. The Kconfig options in this
file don't present user prompts and don't really need to be guarded.
* Adding ppi to subdirs-y
--> Makefile under ppi/ already has conditional inclusion of files
and does not require a top-level conditional.
* Setting USE_INTEL_FSP_TO_CALL_COREBOOT_PUBLISH_MP_PPI to y
--> This is set to y if FSP_USES_MP_SERVICES_PPI is selected by SoC.
TEST=Verified that timeless build for brya, volteer, icelake_rvp,
elkhartlake_crb and waddledee shows no change in generated coreboot.rom
Change-Id: I0664f09d85f5be372d19925d47034c76aeeef2ae
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50274
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
A minimum of 100ms delay is required before sending a configuration
request to the downstream components. Since the kernel already adds
100ms, this change drops the extra 100ms delay in TBT PCIe root ports
_PS0 method in order to improve resume time.
BUG=b:177519081
TEST=Boot to kernel and validated various tests on Voxel.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: Ic392f9af6cd739507a80a4ca3fd126088b513304
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50086
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Sukumar Ghorai <sukumar.ghorai@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
According to Tigerlake TDP specifications (doc #575683, table 4-2),
TGL supports different TDP levels depends on CPU segement/package,
IA Cores and graphics configuration. For example, UP3 4-Core GT2
suppots base TDP=28W, Configurable TDP-Down_1=15W and Configurable
TDP-Down_2=12W. This configurable value can be used to select
suitable TDP level
Change-Id: I4242575807caac172b6cbe667839bf6c9241f3c5
Signed-off-by: Derek Huang <derek.huang@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50104
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Before enabling IO decode ranges, current code checks if the DMI SRLOCK
is set to prevent inconsistencies between LPC PCI cfg registers and LPC
DMI registers, when the latter are locked.
DMI SRLOCK only applies to PCHs with on-package DMI, but not to PCH-H,
PCH-S and others with discrete PCH packages. So this check is at least
incomplete.
Further, the lock gets applied by FSP and gets reset on a warm reset.
Thus, there is no case where the lock would be already set at the
places where the DMI registers get written currently.
Drop the checks for the reasons mentioned above.
Change-Id: I59554ce96bce7f7d1a4ba9b098be9e8466c68eac
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49885
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
