We can generate the names, so there is no need to hard code a table.
This will make the code more generic so it can be reused with picasso in
the future.
BUG=b:184766519
TEST=Dump guybrush ACPI table and verify it looks correct.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I5134d1dba4fcb9ce8cc4bfad1c619331a95f3b11
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52870
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We can now use the GNB IO-APIC.
BUG=b:184766519
TEST=Boot guybrush to OS with `pci=nomsi amd_iommu=off noapic`
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I4df5a4583f14044d2efcde3a9de9dd85e898a11d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53936
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
To configure and enable the IOAPIC in the graphics and northbridge (GNB)
container, FSP needs to write an undocumented register, so pass the GNB
IOAPIC MMIO base address to make it show up at that address.
BUG=b:187083211
TEST=Boot guybrush and see IO-APIC initialized
IOAPIC[0]: apic_id 16, version 33, address 0xfec00000, GSI 0-23
IOAPIC[1]: apic_id 17, version 33, address 0xfec01000, GSI 24-55
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I1e127ce500d052783f0a6e13fb2ad16a8e408b0e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52905
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The PIC IRQs are required so we can correctly set up the PCI_INT
registers. This only matters when booting in PIC mode. We don't need to
set the IO-APIC registers since the linux kernel will auto-assign those
to reduce conflicts.
BUG=b:184766519
TEST=Boot guybrush with `pci=nomsi,noacpi amd_iommu=off noapic` and
verify xhci and graphics continue to work.
$ cat /proc/interrupts
12: 285064 XT-PIC nvme0q0, nvme0q1, rtw88_pci
13: 100000 XT-PIC xhci-hcd:usb1
14: 4032 XT-PIC amdgpu, xhci-hcd:usb3
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I1d66ccd08a86a64242dbc909c57ff9685828f61f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52915
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Use the new acpigen_write_PRT to write the _PRT for each PCI bridge.
BUG=b:184766519
TEST=Dump guybrush ACPI table and verify it looks correct.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Idb559335435a95e73640e6d7fb224e16e0592326
Reviewed-on: https://review.coreboot.org/c/coreboot/+/51556
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This uses the new FSP PCI methods to pull the routing table and populate
the pirq data structure.
BUG=b:184766519
TEST=Boot guybrush and verify we get Got IRQ 0x1F (disabled) messages
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ie21229cc2fb4fd5b85c0b9e933f7b43af24864b0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52914
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
These are helper methods for interacting with the
AMD_FSP_PCIE_DEVFUNC_REMAP_HOB_GUID.
BUG=b:184766519, b:184766197
TEST=Build guybrush
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Id03d0b74ca12e7bcee11f8d13b0e802861c13923
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52911
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
We can now delete the picasso specific version.
BUG=b:184766519
TEST=Build zork and verify SSDT has not changed
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ic79014e83c9ff63cc7a6757b16764ae23b36984f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53935
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This is loosely based off of picasso/pcie_gpp.c. This version uses the
acpigen_write_PRT_X methods to write the actual records. There are also
two functions, 1 for using the GNB, and one for using the FCH. The FCH
one is useful when the GNB IO-APIC has not been initialized.
BUG=b:184766519
TEST=Dump guybrush ACPI and verify it looks correct
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I926430074acb969ceb11fdb60ab56dcf91ac4c76
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52917
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
The method now dynamically allocates the pirq structure and uses the
get_pci_routing_table method.
BUG=b:184766519
TEST=Build guybrush and verify picasso SSDT has not changed.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I297fc3ca7227fb4794ac70bd046ce2f93da8b869
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52913
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This allows us to use the common get_pci_routing_info and
pci_calculate_irq. The IRQ field in the struct was also filled in from
the PPR.
BUG=b:184766519
TEST=Boot ezkinil and verify SSDT table is identical.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I16d90d8c89bfcf48878c0741154290ebc52a4120
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53923
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This struct is similar to `struct pci_routing` defined in
picasso/pcie_gpp.c. It additionally contains the irq used for the bridge
and is structured in a way that the FSP can provide via HOB.
The next set of CLs will migrate the pci routing functions used by
picasso into common and enable pci routing table generation for cezanne.
BUG=b:184766519
TEST=Build guybrush
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I1a8d988d125f407f0aa7bc1722d432446aa9aff8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53922
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Document the roles we have on review.coreboot.org, the expectations
associated with them, and how to become part of any of these groups.
Change-Id: Ib31083f5a07bd89efd13ecd6aaf34a69d438d59d
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52265
Reviewed-by: Felix Singer <felixsinger@posteo.net>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
TEST=Mandolin still boots into Linux and there's no ACPI warning in
dmesg.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I7e6d38ebeae5e55a4a65930b989838532ab9c446
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53920
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Also add an alib_ prefix to avoid possible name collisions.
TEST=Timeless build for Mandolin results in identical binary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ib0f220a4cde6da764bb8bc589b5f44ae16496bd7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53918
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
These parameter IDs are defined in the AGESA Interface specification
#55483. This patch also adds a ALIB_DPTC_ prefix to the IDs and makes
the names more consistent.
TEST=Timeless build for Mandolin results in identical binary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I75e0504f6274ad50c53faa8fcbde4d6821d85a04
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53917
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The other enum entries are control IDs for the
ALIB_FUNCTION_DYNAMIC_POWER_THERMAL_CONFIG ALIB function while
DPTC_TOTAL_UPDATE_PARAMS is the total number of configuration settings
that will get passed as parameter in the ALIB call, so it shouldn't be
part of that enum.
TEST=Timeless build for Mandolin results in identical binary.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I0cb9e9d2ba579a74d916011b4ead71cc86d69a24
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53916
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The ACPI ALIB function numbers are defined in the AMD Generic
Encapsulated Software Architecture (AGESA™) Interface Specification
(document #55483).
TEST=Timeless build stays the same for Mandolin (Picasso) and Gardenia
(Stoneyridge).
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I290ef0db32c65ebb2bbbe4f65db4df772b884161
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53915
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The mcache is overflowed in the latest build. In order
to fix the mcache overflow, we increase the mcache size
to 0x4000 and adjust the percentage to 50% for the ro/rw
mcache. This change is for all of the volteer variants
as we see many of the volteer variants which use the
latest bios having the mcache overflow issue.
BUG=b:187095474, b:187095765, b:187234881, b:162052593
TEST=no mcache overflow in the bios log
Change-Id: If9552bc9fa5d36b1ca662c9da030ae7b137b60a8
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/53908
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
Add backlight support in sn65dsi86bridge through the AUX channel using
eDP DPCD registers, which is needed on the GOOGLE_HOMESTAR board.
Change-Id: Ie700080f1feabe2d3397c38088a64cff27bfbe55
Signed-off-by: Vinod Polimera <vpolimer@codeaurora.org>
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52663
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
The SN65DSI86 eDP bridge supports two ways to read the EDID: for now
we've been using "direct mode", which works by basically making the
bridge I2C device listen to another chip address besides its own and
proxy all requests received there directly to the eDP AUX channel. The
great part about that mode is that it is super easy and hassle-free to
use. The not so great part about it is that it doesn't work: for EDID
extensions, the last byte (which happens to contain the checksum) is
somehow always read as zero. We presume this is a hardware bug in the
bridge part.
The other, much more annoying way is "indirect mode", where each byte
transmitted over the AUX channel has to be manually set up in the I2C
registers of the bridge, just like we're already doing with DPCD
transactions. Thankfully, we can reuse most of the DPCD code for this so
it's not a lot of extra code. It's a bit slower but not as much as you'd
expect (26ms instead of 18ms on my board), and the difference is not
very relevant compared to common total times for display init.
Also, some of the (previously unused) enum definitions for the AUX_CMD
mode field of the bridge had just been plain wrong for some reason, and
needed to be fixed to make this work.
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I65f80193380d3c3841f9f5c26897ed672f45e15a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52959
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
PCI interrupts are level active low, so they can be shared.
BUG=b:184766519
TEST=Boot guybrush to OS with `pci=nomsi amd_iommu=off noapic`
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I439337dd66fe56790406c6d603e73512c806a19d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52957
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Replace `3` with `SaGv_Enabled`, which has the same value.
Change-Id: I05cfddfefc45ba5bfb0e684445a6d8e02d7865e3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52098
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
Memory region 0xa0000 to 0xc0000 was not reserved, the first
PCI memory resources might get assigned in this space.
FIXES: aopen/dxplplusu PCI EHCI 0:1d.7 memory resource.
Change-Id: Ia17025bde83b91d71ad719de6348197cf92e267e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52813
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This will allow us to have subdirectories in common/fsp.
BUG=b:184766519
TEST=Build guybrush
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ib3497791e1963867c8fe06a42c111e5d0503ade1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52910
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Create the volet variant of the volteer reference board by copying
the template files to a new directory named for the variant.
(Auto-Generated by create_coreboot_variant.sh version 4.5.0).
BUG=b:186334008
BRANCH=None
TEST=util/abuild/abuild -p none -t google/volteer -x -a
make sure the build includes GOOGLE_VOLET
Signed-off-by: Sheng-Liang Pan <sheng-liang.pan@quanta.corp-partner.google.com>
Change-Id: Ic6ca9a78494e3819b0fb39c0bcc70fed95c2c589
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52871
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: YH Lin <yueherngl@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Bank interleaving does not work on this platform, disable it.
AmdInitPost returns success thanks to this setting.
TEST=boot apu1 and see AGESA_SUCCESS after AmdInitPost
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: Id555b458c61df9a27a93f44f600d1718867106ca
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52779
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Bank interleaving does not work on this platform, disable it.
Additionally enable ECC feature on SKUs supporting it. AmdIntPost
returns success thanks to these settings.
TEST=boot apu2 4GB ECC and apu3 2GB no ECC and see AGESA_SUCCESS after
AmdInitPost
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Change-Id: I010645f53b404341895d0545855905e81c89165e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Mediatek SoC uses part of the L2 cache as SRAM before DRAM is ready.
After DRAM is ready, we should invoke disable_l2c_sram to reconfigure
the L2C SRAM as L2 cache.
Signed-off-by: Yidi Lin <yidi.lin@mediatek.com>
Change-Id: I8777b0c8471fe17ffffdcb6ad5b7c00fb1d35db1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52925
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
We need to configure CPU PCIE root port related gpios in early
boot block stage for CPU root ports to work. Since we're removing
this programming from FSP, coreboot needs to take care of programming
this GPIOs. Also we need to enable virtual wire messaging for native
gpios for CPU PCIE root ports.
Change-Id: Ieda6b6c31ce5bd5e84e4efe544bfc659283ce6f1
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52270
Reviewed-by: Balaji Manigandan <balaji.manigandan@intel.com>
Reviewed-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add SPD support to elemi for K4AAG165WB-BCWE
BUG=b:187379245
TEST=FW_NAME=elemi emerge-volteer coreboot chromeos-wqbootimage
Change-Id: I839447a9e7c7b6558b2d0877c67dc9cf89ee792a
Signed-off-by: Wisley Chen <wisley.chen@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52880
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
platform_is_resuming() was using the wrong register (PM1_STS) to figure
out if the platform was resuming (PM1_CNT).
Change-Id: I1f69dca1da158aae15c6da6d4c898c71d9cdb51f
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52930
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
On tgl, we noticed system hang if a shutdown is triggered before fsps.
The dut is unable to shutdown properly due to tcss is stuck before
tcss_init in fsps.
This change enable power button smi on jsl, tgl, adl after fsps.
it can also prevent a shutdown failure due to lack of fsps init on
certain ip.
BUG=b:186194102, b:186815114
TEST=Power on the system and pressing power button repeatedly doesn't
cause the system hang during shutdown.
Change-Id: I70b871f2676a89bc782116e02beba5c20ec51eef
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52874
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
If a power button SMI is triggered between where it is currently
enabled and before FSP-S exits, when the SMI handler disables
bus mastering for all devices, it inadvertently also disables
the PMC's I/O decoding, so the register write to actually go into
S5 does not succeed, and the system hangs.
This can be solved by skipping the PMC when disabling bus
mastering in the SMI handler, for which a callback,
smihandler_soc_disable_busmaster is provided.
BUG=b:186194102, b:186815114
TEST=Power on the system and pressing power button repeatedly doesn't
cause the system hang during shutdown.
Change-Id: I1cf5cf91ebad4a49df6679e01fc88ff60c81526c
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52873
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Mancomb uses DDR4 SODIMMs, but the default cezanne configuration is for
the LPDDR4 version. This changes to use SODIMMS.
Further changes may be needed for platform customization, so I put the
config file in variants/baseboard instead of the root mancomb directory.
BUG=b:187094481
TEST=Build only
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: Icc4dc8aec2053cb177765f57e57cac7a099508fe
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52900
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
DISABLE_KEYBOARD_RESET_PIN - This pin goes to a test point and is not
used for the reset.
DRIVERS_UART_ACPI - Add the UART ACPI code
FW_CONFIG - Mancomb uses the firmware config interface
PSP_DISABLE_POSTCODES - The PSP is not yet initializing eSPI correctly
to send post codes to the EC, so disable them for now.
BUG=None
Test=Build
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I39efcc8d1e0fb1e7ac0b0541a49db0ac0ee56481
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52949
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This change fixes two problems:
1) We had the enum values for .direction and .level swapped. The naming
is very confusing...
2) ESPI_SYS is not a good event to use for EC SCI. It is a level/low
event that is only cleared by reading the eSPI status register 0x9C.
Cezanne has added a new event source that directly exposes the SCI bit.
This is the correct event source to use for EC SCI.
This same patch was added for Guybrush at CB:52673
BUG=b:186045622, b:181139095
TEST=Build
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: Iac86d2ef5bdd21fbb0a0d4e235efe4fe621023b2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52948
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Using the push-pull alert was causing leakages when in S0i3. This is
because the EC drives ALERT#, so when the AP enters S0i3, the extra
current leaks into the SoC and ends up turning on the power regulators.
By using in-band ALERT#, the EC no longer drives this pin high, thus
fixing the leak. We could also have used an open drain alert, but the
rise time is less than ideal.
BUG=b:187122344, b:186135022
TEST=Measure S0i3 power on guybrush and validate it's no longer high.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: I6de771aeda8feca062652f0ea9eb57d31cb68562
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52955
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Some designs might wish to use an open drain eSPI ALERT#. This change
adds an enum that allows setting the eSPI alert mode.
BUG=b:187122344, b:186135022
TEST=Boot guybrush using all 3 alert modes
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ia35fc59a699cf9444b53aad5c9bb71aa27ce9251
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52954
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
The eSPI spec says that the Alert Mode defaults to in-band on reset.
This change ensures the controller is in sync with the eSPI peripheral.
The configured alert mode is configured in
espi_set_general_configuration.
BUG=b:187122344, b:186135022
TEST=Boot guybrush and make sure we don't get any eSPI errors.
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ib43e190d08d77ecfcd22ead2bf42e5de2202b555
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52953
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Rob Barnes <robbarnes@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Andrew SH Cheng