| commit | 48fc72a4fd79406335379bceae92700ffbc2e36e | [log] [tgz] |
|---|---|---|
| author | Gaggery Tsai <gaggery.tsai@intel.com> | Fri Dec 28 10:26:44 2018 -0800 |
| committer | ChromeOS Commit Bot <chromeos-commit-bot@chromium.org> | Sat Jan 12 07:44:36 2019 +0000 |
| tree | 0012a3a3945f7fc0a082122dd9f8aeb86ae4b2b1 | |
| parent | 03b4a11d0017efd36c487497581866dc2c2dba05 [diff] |
src/drivers/intel/wifi: Add a W/A for Intel ThP2 9260
This patch adds a workaround for ThP2. The PCIe root port LCTL2.TLS
is by default GEN1 and ThP has bad synchronization on polarity
inversion. When the root port request for speed change, ThP doesn’t
confirm the request, and both sides are moving to polling after
timeout, hot reset is issued, and then most of the CFG space is
initialized. From the observation, CCC/ECPM/LTR would be reset to
default but CCC/ECPM of root port and end devices have been
reconfigured in pci_scan. The LTR configuration for root port
is still missing.
BUG=b:117618636
BRANCH=None
TEST=Warm/cold reset for 10 times and didn't see unsupported request
related AER error messages & $lspci -vvs 00:1c.0|grep LTR and
ensure LTR+ is presenti & $iotools pci_read32 0 0x1c 0 0x68
and ensure bit10 is set.
Signed-off-by: Gaggery Tsai <gaggery.tsai@intel.com>
Reviewed-on: https://review.coreboot.org/c/30486
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Change-Id: Id5d2814488fbc9db927edb2ead972b73ebc336ce
Reviewed-on: https://chromium-review.googlesource.com/c/1407535
Reviewed-by: Bob Moragues <moragues@chromium.org>
Reviewed-by: Caveh Jalali <caveh@google.com>
Commit-Queue: Caveh Jalali <caveh@google.com>
Tested-by: Caveh Jalali <caveh@google.com>
coreboot is a Free Software project aimed at replacing the proprietary BIOS (firmware) found in most computers. coreboot performs a little bit of hardware initialization and then executes additional boot logic, called a payload.
With the separation of hardware initialization and later boot logic, coreboot can scale from specialized applications that run directly firmware, run operating systems in flash, load custom bootloaders, or implement firmware standards, like PC BIOS services or UEFI. This allows for systems to only include the features necessary in the target application, reducing the amount of code and flash space required.
coreboot was formerly known as LinuxBIOS.
After the basic initialization of the hardware has been performed, any desired “payload” can be started by coreboot.
See https://www.coreboot.org/Payloads for a list of supported payloads.
coreboot supports a wide range of chipsets, devices, and mainboards.
For details please consult:
ANY_TOOLCHAIN Kconfig option if you’re feeling lucky (no support in this case).Optional:
make menuconfig and make nconfig)Please consult https://www.coreboot.org/Build_HOWTO for details.
If you want to test coreboot without any risks before you really decide to use it on your hardware, you can use the QEMU system emulator to run coreboot virtually in QEMU.
Please see https://www.coreboot.org/QEMU for details.
Further details on the project, a FAQ, many HOWTOs, news, development guidelines and more can be found on the coreboot website:
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This makes the resulting coreboot images licensed under the GPL, version 2.