On Lenovo T500 the RTC readings where wrong, as RTC has
different encodings, depending on the statusB register.
Support BCD vs binary RTC format and AM/PM vs 24h RTC format.
Fixes wrong date and time on Lenovo 500.
Change-Id: Id773c33e228973e190a7e14c3d11979678b1a619
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/18498
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
- Add a common page about Montevina ThinkPads.
- Describe how to disable ME and remove its firmware on these models.
- Describe vendor flash layouts.
Thanks to swiftgeek for his help when writing this, especially the last
paragraph and flash layouts.
Change-Id: I85917821efe63fff4b933b6226e99c17b63eb1b9
Signed-off-by: Evgeny Zinoviev <me@ch1p.io>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38926
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This makes payloads which are hardcoded to a 80x25 console look much
better, e.g. FILO with its "GRUB" user interface.
Change-Id: I9f4752328d85d148cd40a0c2337c7191e1d6a586
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38538
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Keeping a local copy of the framebuffer info allows us to make changes,
e.g. add offsets. It also avoids trouble with relocation.
Change-Id: I852c4eb229dd0724114acb302ab2ed7164712b64
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The SCH5317 can have either 0x85 or 0x8c as device ID. However, the
former results in false positives on any ITE IT85xx series embedded
controller, which has led some people to think that chip was actually in
their laptops. Moreover, there is no register dump for the SCH5317.
Since nobody has touched this in over a decade, avoid further confusion
by dropping the misleading definition.
Change-Id: I4d1d34d1b88b878461499e52f1a916ee1e33210d
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39376
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Add LPDDR4 memory configuration for Tiger Lake UP4 platform which
includes
1. DQ/DQs Mapping
2. Board id Support
3. SPD indexing
BUG=none
BRANCH=none
TEST= Build TGL UP4 successfully
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: Ibbd7036919c1a91ef12049d2af657f0a3597b57e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39365
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Update FSPS header to include HybridStorageMode Upd for Tiger Lake platform
version 2457.
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: Ib6ac89163c0f7a11910e56b9804e386f8bcf355d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39364
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Caveh Jalali <caveh@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
For some reason, this symbol gets redefined, which causes a warning.
Hide the warning by checking whether it is already defined.
Change-Id: I70ffc9a799e0b536d6aba7d00f828bd6d915d94c
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39183
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This change uses drivers/intel/wifi chip for CNVi device and
adds dynamic SSDT entires for CNVi also export wake gpio for CNVi.
BUG=none
BRANCH=none
TEST=Build and boot volteer
Signed-off-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Change-Id: Ia8baf1c7b770db23f31383bda46ae8d090468560
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39333
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Correct the missing log. Should be the part number not just part.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I17ac9c6f9545d84645665d3abe1d1613baef4e14
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39353
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
To mitigate against sinkhole in software which is required on
pre-sandybridge hardware, the smm entry point needs to check if the
LAPIC base is between smbase and smbase + smmsize. The size needs to
be available early so add them to the relocatable module parameters.
When the smmstub is used to relocate SMM the default SMM size 0x10000
is provided. On the permanent handler the size provided by
get_smm_info() is used.
Change-Id: I0df6e51bcba284350f1c849ef3d012860757544b
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37288
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Coverity detects pointer dev as FORWARD_NULL. Add sanity check
for dev to prevent NULL pointer dereference if dev did not point
to the audio device.
BUG=CID 1420208
TEST=Built image successfully.
Change-Id: I2a62da44c7044f9dc281eae0949f7f7b612ab238
Signed-off-by: John Zhao <john.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39261
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This patch upgrades the kernel space to v1.0 to accommodate EC hash,
which is used for CrOS EC's early firmware selection.
BUG=chromium:1045217
BRANCH=none
TEST=Boot Helios. Verify software sync works.
Cq-Depend: chromium:2041695
Change-Id: I525f1551afd1853cae826e87198057410167b239
Signed-off-by: dnojiri <dnojiri@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39137
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Joel Kitching <kitching@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Updating from commit id 8b9732f5:
2020-01-28 02:32:08 +0000 - (2lib: Fix struct vb2_hash the way it was
meant to be)
to commit id 5059062d:
2020-03-05 02:40:39 (EFS: Implement EFS2 and NO_BOOT mode)
This brings in 19 new commits.
Change-Id: Ic33500921e2c1a6109c24ad36713b41ab6e43de9
Signed-off-by: dnojiri <dnojiri@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39324
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Joel Kitching <kitching@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enable DdiPortBHpd and additional pin muxes for DPs. These pin muxes
were done in FSPs, these pin muxes are for bypassing pin muxes in FSPs.
BUG=none
BRANCH=none
TEST=Build and boot tigerlake rvp board and check FSP log or DP port
pin mux from pinctl driver.
Signed-off-by: Wonkyu Kim <wonkyu.kim@intel.com>
Change-Id: Id44cfba696b1a21296278f4de2ad6de8f6bbd63b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39229
Reviewed-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-by: Srinidhi N Kaushik <srinidhi.n.kaushik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Enable TCO SMIs in common code, if selected by Kconfig. This is needed
for the follow-up commits regarding INTRUDER interrupt.
Tested on X11SSM-F.
Change-Id: If63effe74ac59b5d051a6454bc6375bb89605215
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39262
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Allow the user to select if TCO shall issue SMIs or not.
Change-Id: Id22777e9573376e5a079a375400caa687bc41afb
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39326
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These constants are not used in coreboot. They can still be found in:
depthcharge: src/vboot/util/acpi.h
vboot_reference: host/arch/x86/lib/crossystem_arch.c.
BUG=b:124141368
TEST=make clean && make test-abuild
BRANCH=none
Change-Id: I40ad35235c87662a6bcbe6320974a626c6db059e
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39319
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
wpsw_boot is deprecated in favour of wpsw_cur. As such,
coreboot no longer needs to share "write protect" GPIO
with depthcharge.
BUG=b:124141368, chromium:950273
TEST=make clean && make test-abuild
BRANCH=none
Change-Id: I2fcb7f82aa063fd72928171af5cbef0356ba620c
Signed-off-by: Joel Kitching <kitching@google.com>
Cq-Depend: chromium:2088434
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39318
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Took less than 30 minutes, and booted on the first try :)
Working:
- Native raminit, using two 2GB DDR3-1333 DIMMs
- S3 suspend/resume
- USB ports and headers
- EHCI Debug with an FT2232H
- Gigabit Ethernet
- Integrated DVI/VGA outputs (libgfxinit)
- PCIe x16 for a graphics card
- PCIe x1 ports
- PS/2 port with a keyboard
- SATA controller
- Audio outputs, both front and rear
- flashrom, using the internal programmer. Tested with coreboot,
as well as with the vendor firmware. Backup chip is untested.
Untested:
- VGA BIOS for integrated graphics init
- Audio inputs
- Non-Linux OSes
- ACPI thermal zone and OS-independent fan control
Not working:
- Default IFD defines the BIOS region as the entire flash chip.
Using 'flashrom --ifd -i bios' is asking for a failed flash!
Change-Id: I467f586530e4a3b53a24b66565b5dcab5e33cf46
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37483
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This is an ATX mainboard with a LGA1155 socket and four DDR3 DIMM slots.
Porting was done using autoport and then doing a bunch of manual edits.
Working:
- All four DIMM slots
- Serial port to emit spam
- PS/2 keyboard
- S3 suspend/resume
- Rear USB ports
- Integrated graphics (libgfxinit)
- HDMI and VGA
- All PCIe ports
- Realtek GbE (coreboot must set the MAC address)
- Both PCI ports behind the ASM1083 PCI bridge
- SATA ports
- Native raminit
- Flashing with flashrom
- Rear audio output
- VBT
- SeaBIOS to boot Arch Linux
Untested:
- PS/2 mouse
- The other audio jacks
- EHCI debug
- Front USB headers
- Non-Linux OSes
Change-Id: Ia5d9176b6f435977ecdd4fc82fc4bc0974d8d6a4
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39299
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
I received feedback that people were confused by "Error: foo", so
replace it with something more user friendly that serves the same
purpose.
Change-Id: I17b902a62020109e079437c8d9ffd7ea5979a3a1
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39274
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
The Broadcom BCM5751 NIC on a PCIe card will make the computer hang if
ASPM gets enabled. Blacklist it.
Change-Id: I2cf8d56e9139928a6acfd1d09e47a96b9554fb06
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39193
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This commit creates a nuwani variant for Grunt. The initial settings
override the baseboard was copied from variant treeya.
BUG=b:144890301
TEST=emerge-grunt coreboot
Signed-off-by: Peichao Wang <peichao.wang@bitland.corp-partner.google.com>
Change-Id: Id3a7fc890340e5a88ebc4b516dc2c0b085654999
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39316
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Mathew King <mathewk@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
OCP platform Tiogapass is a 2-socket server platform, which
is based on a chipset including Intel Skylake-SP processors
and a Lewisburg PCH. Skylake-SP is a processor in Intel Xeon
Scalable Processor family.
Following ACPI tables are added:
DSDT/SSDT, MADT, FACP, FACS, HPET, MCFG, SLIT, SRAT, DMAR
This patchset is tested on a Tiogapass board. It booted with
Linux kernel 4.16.0; lscpu command shows all 72 cpus (2 sockets,
18 cores, 2 thread per core); ssh command shows
networking is up from Mellanox ConnectX-4 PCIe NIC card.
Towards successful gerrit buildbot build, note that:
* microcode is in coreboot intel-microcode submodule repo.
* IFD binary is included in this patch.
* Dummy ME binary is used, as it may take long time for Intel
ME binary to be available in public domain.
* Fake FSP binary is used, as at this moment the SKX-SP
FSP binary is not going to be available in public domain.
Known issues (Not intend to address in this initial support for
Xeon-SP processors):
* c6 state is not supported.
* dsdt table is not fully populated, such as processor/socket
devices, some PCIe devices.
* SMM handlers are not added.
Following are some command execution with CentOS booted from
local SATA disk:
[root@localhost ~]# lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 72
On-line CPU(s) list: 0-71
Thread(s) per core: 2
Core(s) per socket: 18
Socket(s): 2
NUMA node(s): 2
Vendor ID: GenuineIntel
CPU family: 6
Model: 85
Model name: Intel(R) Xeon(R) Gold 6139 CPU @ 2.30GHz
Stepping: 4
CPU MHz: 140.415
BogoMIPS: 4626.46
Virtualization: VT-x
L1d cache: 32K
L1i cache: 32K
L2 cache: 1024K
L3 cache: 25344K
NUMA node0 CPU(s): 0-17,36-53
NUMA node1 CPU(s): 18-35,54-71
[root@localhost ~]# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.23.68.190 netmask 255.255.0.0 broadcast 172.23.255.255
inet6 2620:10d:c082:9063:268a:7ff:fe57:5af0 prefixlen 64 //cut
inet6 fe80::268a:7ff:fe57:5af0 prefixlen 64 scopeid 0x20<link>
inet6 2620:10d:c082:9063::5d2 prefixlen 128 scopeid 0x0<global>
ether 24:8a:07:57:5a:f0 txqueuelen 1000 (Ethernet)
RX packets 84249 bytes 6371591 (6.0 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 8418 bytes 748781 (731.2 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 613 bytes 63906 (62.4 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 613 bytes 63906 (62.4 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@localhost ~]# cbmem
36 entries total:
// Lines were cut to avoid checkpatch.pl warnings
Total Time: 96,243,882,140,175,829
Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com>
Tested-by: johnny_lin@wiwynn.com
Change-Id: I29868f03037d1887b90dfb19d15aee83c456edce
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38549
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
This patch adds support for Intel Xeon-SP.
This patch is developed and verified with Skylake Scalable
Processor, which is a processor in Xeon-SP family. The code
is expected to be reusable for future geneations of Xeon-SP
processors, and will be updated with smaller targeted
patches accordingly, to add support for additional Xeon-SP
processors, to add features, and to improve the code base.
The Skylake-SP FSP is based on FSP 2.0. The FSP is a
proof-of-concept build. The binary is not shared in public,
when this patch is upstreamed.
Signed-off-by: Jonathan Zhang <jonzhang@fb.com>
Signed-off-by: Reddy Chagam <anjaneya.chagam@intel.com>
Tested-by: johnny_lin@wiwynn.com
Change-Id: Idc9c3bee17caf8b4841f0bc190cb1aa9d38fc23e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38548
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
CB:38541 ("ec/google/chromeec: Add SSDT generator for ChromeOS EC")
added a new device_operations structure for chromeec for handling ACPI
SSDT generation. However, this resulted in the original
device_operations which handled lpc read resources to be skipped. This
change fixes the above regression by combining the device operations
for reading resources and ACPI SSDT generation into a single structure
and retains the old logic for enabling of pnp devices.
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I3a242f4b15603f957e0e81d121e5766fccf3c28d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39321
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
The register TCO1_STS is never cleared, which will cause SMIs to either
retrigger over and over again (e.g. TIMEOUT) or prevent concurrent
interrupt events, depending on which event triggered.
Clear both TCO2_STS and TCO1_STS.
This also fixes the issue where SECOND_TO_STS will always end up set in
the SMI handler by unconditionally (re)setting it.
Tested on X11SSM-F, where enabling TCO caused the terminal to get
flooded with SMI debug messages. With this patch, a message gets written
every ~1 second.
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: Ia57c203a672fdd0095355a7e2a0e01aaa6657968
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39259
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Andrey Petrov <anpetrov@fb.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We include it only in one file. So let's simplify everything and do like
autoport does.
Change-Id: I71f092ed7582b4931122d72f41d0b42a7569b96e
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38781
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Move channel loop at the top level to deduplicate the logic.
BUG=none
BRANCH=kukui
TEST=Boots correctly on Kukui
Change-Id: Iea623d1bd1f7d736e81f66f191a1bf8476d30404
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38490
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
The TX window will offset to edge during DVFS switch, which may cause
TX data transmission error and random kernel crash. Therefore, use the
standard dqsosc (DQS Oscillator) for TX window tracking.
BUG=b:142358843
BRANCH=kukui
TEST=Boots correctly on Kukui
Change-Id: Idcf9213a488e795df3faf64b03588cfe55cb2f81
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37996
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Because eMCP and discrete DDR devices have different DVFS tables, their
EMI bandwidth thresholds should also be different. When the EMI total
bandwidth reaches the threshold, the system will notify DVFS module to
perform DVFS switch for system performance in low power states.
This patch increases the threshold from 0xa to 0xd for eMCP DDR devices
so that DVFS switch will be less likely to happen.
The register table of EMI_BWCT0 is incorrect in the datasheet. According
to the hardware design, BW_2ND_INT_BW_THR should be in bits [30:24]
instead of [22:16]. However, the logic in DRAM driver is correct,
aligned with the hardware design, so we don't need to correct it.
BRANCH=kukui
BUG=b:142358843
TEST=bootup pass
Change-Id: I82c3c70bcd90df3fdd613c0353aba0f176bc82bc
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39034
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Patrick Rudolph