Increase frequency of sc7280 to 75 MHz. Setting the delay to 1/8 of
a cycle as a result of experimentation.
BUG=b:190231148
BRANCH=None
TEST=Make sure that herobrine board boots
HW Engineer measured SPI frequency and verified running at 75 MHz
Signed-off-by: Shelley Chen <shchen@google.com>
Change-Id: I3cf5a7c85f12800a11ece397a354349f2a0a235f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64673
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Add 'detect' flag which can be attached to devices which may or may not
be present at runtime, and for which coreboot should probe the i2c bus
to confirm device presence prior to adding an entry for it in the SSDT.
This is useful for boards which may utilize touchpads/touchscreens from
multiple vendors, so that only the device(s) present are added to the
SSDT. This relieves the burden from the OS to detect/probe if a device
is actually present and allows the OS to trust the ACPI _STA value.
Change-Id: I1a4169ed6416d544773a37d29cdcc154d3c28519
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63211
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This patch adds the I2C equivalent of an SMBus quick write to an I2C
device, which is used by some I2C drivers as a way to probe the
existence (or absence) of a certain device on the bus, based on
whether or not a 0-byte write to an I2C address is ACKed or NACKed.
i2c_dev_detect() is implemented using the existing i2c bus ops transfer()
function, so no further work is needed for existing controller drivers
to utilize this functionality.
Change-Id: I9b22bdc0343c846b235339f85d9f70b20f0f2bdd
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
0-byte writes can be used as a way to probe/check presence of an i2c
device, so adjust _dw_i2c_transfer() to immediately set the STOP bit
and raise logger level for TX abort messages when the segment length
is zero. Adjust dw_i2c_transfer() to allow zero-segment-length
messages to be passed thru to _dw_i2c_transfer().
Tested as part of entire i2c-detect patch train.
Change-Id: I518e849f4c476c264a1464886b1853af66c0b29d
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63561
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Future nissa devices will mostly use 16MB SPI flash. Add 16MB layout and
make it default for nissa.
BUG=b:202783191
TEST=build nissa and brya firmware, check they're still 32MB
Signed-off-by: Kangheui Won <khwon@chromium.org>
Change-Id: I04ae46d62d3e018610ca2533c186dda980bd67bc
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64716
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Reka Norman <rekanorman@chromium.org>
This reverts commit bd9cec8ae5.
Reason for revert: Enable i2c7 for amp changing to 2 channel
because vell setting amp on i2c0 and i2c7 on next phase
BUG=b:229334701
TEST=emerge-brya coreboot chromeos-bootimage && $powerd_dbus_suspend
&& checks EC log and ensures the DUT could enter s0ix.
Signed-off-by: Shon Wang <shon.wang@quanta.corp-partner.google.com>
Change-Id: I5988cd9926b2c9ced1d111774abaa897bef91537
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64627
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
The dGPU used for some Brya projects requests 32 bits of address space
for one of its BARs via the Resizable BAR mechanism. This Kconfig is
currently set at 29 bits for brya, so the allocation currently is
capped at 29 bits. This patch sets the limit to 32 bits for brya
boards, which is enough for the GPU.
BUG=b:214443809
TEST=all of the dGPU PCI BARs on agah can be successfully allocated
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I61dbe47f1f316967d052bae748ff23babde61ef0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64726
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
When a PCI resource is marked as 64-bits, the IORESOURCE_ABOVE_4G flag
needs to be passed to the v4 allocator to ensure that the resource will
be allocated in a range large enough to succeed.
BUG=b:214443809
TEST=agah can successfully allocate all of the Nvidia GN20 BARs
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I3f16f52f2a64f8728853df263da29871dca533f7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64725
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
While testing the power sequencing code for the GPU, a few mistakes were
found. This patch fixes those errors:
1) FBVDD load-switch enable is active-low
2) NVVDD VR enable is active-high
3) GPU_PERST_L should be driven low during GPIO table programming
4) The BAR saving code missed the top 32 bits of 64-bit BARs
5) sequence_rail() assumed the pwr_en_gpio and pg_gpio were the same
polarity
6) PEG vGPIOs were not programmed to the correct NF
BUG=b:233552225
TEST=dGPU is able to successfully enumerate over PCIe bus
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: I85767d382012a0c7dfdb1f849768e0160f06c273
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64727
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
We need to put USB setting in mux order.
BUG=b:234103724
TEST=Type C mux configuration is correct.
Wrong:
added type-c port0 info to cbmem: usb2:2 usb3:2 sbu:0 data:0
added type-c port1 info to cbmem: usb2:3 usb3:3 sbu:0 data:0
Correct:
added type-c port0 info to cbmem: usb2:3 usb3:3 sbu:0 data:0
added type-c port1 info to cbmem: usb2:2 usb3:2 sbu:0 data:0
Signed-off-by: John Su <john_su@compal.corp-partner.google.com>
Change-Id: I4f8dbee35159960d17107e23fcde825a38c7de4e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/64721
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
This adds 2 flags:
* invisible opt-in flag for platforms on which clang seems to work
* visible opt-in flag to allow experimenting
Clang seems to work rather well on x86_32 so it makes sense to start
adding that to Jenkins buildtesting, which this allows.
This allows abuild to differentiate between targets that are known to
build with clang. This makes buildtesting just those targets easier.
Change-Id: I46f1bad59bda94f60f4a141237ede11f6eb93cc2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63081
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
Systems have a lot more cores now and 4KiB is not cutting it. E.g.
for a system with 255 cores more than 16KiB is needed.
We could also make this a Kconfig parameter but it's probably not
worth having such micro optimizations to save a few KiB.
Change-Id: Idd47e55d8d679cc70eae996ee1af3ad7eaa1d0cc
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63484
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This code was hard to read as it did too much and had a lot of state
to keep track of.
It also looks like the staggered entry points were first copied and
only later the parameters of the first stub were filled in. This
means that only the BSP stub is actually jumping to the permanent
smihandler. On the APs the stub would jump to wherever c_handler
happens to point to, which is likely 0. This effectively means that on
APs it's likely easy to have arbitrary code execution in SMM which is a
security problem.
Change-Id: I42ef9d6a30f3039f25e2cde975086a1365ca4182
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63478
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
We don't want to keep track of the real smm size all the time.
As a bonus now ss_start is now really the start of the save state
instead of top - MAX(stub_size, save state size).
Change-Id: I0981022e6c0df110d4a342ff06b1a3332911e2b7
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63477
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
This code is much easier to read if one does not have to keep track of
mutable variables.
This also fixes the alignment code on the TSEG smihandler setup code.
It was aligning the code upwards instead of downwards which would cause
it to encroach a part of the save state.
Change-Id: I310a232ced2ab15064bff99a39a26f745239f6b9
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63475
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: Martin L Roth <gaumless@tutanota.com>
