Fix SPI flash ops regressions after commit:
c2973d1 spi: Get rid of SPI_ATOMIC_SEQUENCING
When spi_flash_cmd() is called with argument response==NULL,
only send out command without reading back the response.
Change-Id: I28a94f208b4a1983d45d69d46db41391e267891d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/18082
Tested-by: build bot (Jenkins)
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
The critical delay delta was incorrectly specified as an
unsigned short. Use a signed short instead.
Found-by: Coverity Scan #1347355
Change-Id: I37d769afb8c8af85a0375ae459e9d4ab0adcca74
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18071
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
The existing logic to set up CsMux45 used an incorrect mask
and comparison value due to a copy + paste editing error.
Use the correct mask and comparison value for the last two
values.
Found-by: Coverity Scan #1347385
Change-Id: Ic08a52977df90b9952e434e71cd12dbc6d7e1443
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18070
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
The existing code waiting for northbridge P-state transitions
contained a logical error preventing correct operation. Fix
the logical error and force coreboot to wait for the P-state
transitions per the BKDG.
Found-by: Coverity Scan #1347388
Change-Id: I35f498c836db1439734abe684354c18c8e160368
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18069
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
The code to set the igd frequencies is written with the mobile version
of the 945 chipset in mind and seems to cause cause strange igd
related problems on the desktop versions.
Some possible problems are:
* on 800MHz fsb CPUs the igd sometimes has artifacts on the screen;
* on 800MHz fsb CPU memtest results vary a lot;
* since a commit 45e11aa0a5 "Add/Combine Broadwell Chromebooks using
variant board scheme" that does not affect this northbridge, the
display shows garbage as soon as Linux (4.8) modesets the display.
A fix is to hardcode the core display and render clocks to their
maximum, potentially also improving graphical performance.
Vendor bios on all boards in coreboot with this northbridge have the
same value in this PCI config address.
TESTED on P5GC-MX (display works fine again in Linux) and
user reports of it making GA-945GCM-S2L run more stable.
Change-Id: I8b046edbc952631d9b79023e3d385160ff682c24
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17981
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
On AMD DDR3 platforms, the upper DQMask was incorrectly
calculated, leading to undefined behaviour and possible
DRAM training faults. Use the correct calculation for
the upper DQMask.
Found-by: Coverity Scan #1347394#1347393
Change-Id: If3190eb7c30f1f00d6fd8b751bc1761c9d119782
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18068
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
The Lenovo T400 has a CPU socket that can fit quad cores.
Change-Id: I585775ac9510cc7d2c2d731531f536c1a56b81e8
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18059
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Update to Chromium TOT with bcffec7f (reef: Cleanup battery code)
292 commits between Oct 28, 2016 and Jan 2, 2017
Change-Id: I6bc356b9e458bebaa5839375ff40dd7e0d6ccff1
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/18023
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Several members of DCTStatStruc are designed to persist across resets of
all other members. Move the persistent members into a substructure in
order to simplify the reset logic and avoid compiler warnings / UB.
Change-Id: I1139b7b3b167d33d99619338d42fcd26e2581a5d
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18058
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
AMDFWTOOL calculates the location of the amdfw based on the
CONFIG_ROM_SIZE. If HUDSON_FWM_POSITION does not match that location the
resulting rom does not boot.
This patch forces the position of HUDSON_FWM_POSITION to be the
position calculated by amdfwrom.
Tested on a Bettong derivative with a 16MiB flash.
Change-Id: I3ce69f77174327c18ff97e551c0665c9f633991e
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Reviewed-on: https://review.coreboot.org/17934
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
AMDFWTOOL calculates the location of the amdfw based on the
CONFIG_ROM_SIZE. If HUDSON_FWM_POSITION does not match that location the
resulting rom does not boot.
This patch forces the position of HUDSON_FWM_POSITION to be the
position calculated by amdfwrom.
Tested on a Bettong derivative with a 16MiB flash.
Change-Id: Id2ee96ee076293d48ade84fd6e976ca994dcf491
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Reviewed-on: https://review.coreboot.org/17925
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
There are systems that come with curl but not wget (eg macOS) and they
now have to install one less additional dependency.
Also fix some cosmetic issues in console output and require valid
certificates on https downloads.
Change-Id: Idc2ce892fbb6629aebfe1ae2a95dcef4d5d93aca
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Reviewed-on: https://review.coreboot.org/18048
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Default setting of southbridge assigned 1MiB of memory
for FWH ID 0, while 2MiB is commercially available.
Only remap IDs when large ROM is requested in case some
board uses multiple FWH parts.
Change-Id: I500425f42f755f911d84c6f94a9f3ab5a1ca0b51
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17918
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
When running abuild outside of jenkins, because all of the builds are
printed intermixed, it's easy to miss when a board has failed the build
by looking at the output. This saves a list of failed builds and prints
the list at the end of the run.
- Add a command line option to mark when abuild is being called
recursively.
- Add all failed builds to a list.
- Print the list when a non-recursive abuild run exits.
Change-Id: Icb40ed8083a57bbcde49297d2b0814f98dcbb6c8
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17890
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Variable name of inteltoolArgs was fixed.
The way of passing arguments to inteltool was changed from "-a -f"
to "-af" which is better as the string seems to be parsed
as a single argument.
Change-Id: I0c48fb1e912261748ba9e2b91c291bac28b9e856
Signed-off-by: Sebastian 'Swift Geek' Grzywna <swiftgeek@gmail.com>
Reviewed-on: https://review.coreboot.org/18050
Reviewed-by: Stefan Tauner <stefan.tauner@gmx.at>
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
A VPD entry "wifi_sar" needs to be created which contains a heximal
encoded string in length of 40 bytes. get_wifi_sar_limits() function
retrieves and decodes the data from the VPD entry, which would later
be consumed by platform code.
BUG=chrome-os-partner:60821
TEST=Build and boot lars and reef
Change-Id: I923b58a63dc1f8a7fdd685cf1c618b2fdf4e7061
Signed-off-by: Robbie Zhang <robbie.zhang@intel.com>
Reviewed-on: https://review.coreboot.org/17958
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Gerrit will let you push a patch without a signed-off-by line,
although I believe it can't actually be merged. Instead of catching
it either manually, or when the patch is attempting to be merged,
catch this in the jenkins builder.
Change-Id: I80161befa157266dd4e3209839a06ff398aab6bb
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17941
Tested-by: build bot (Jenkins)
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Some PCI peripherals, such as FPGA accelerators, require a great amount
of memory mapped IO. This patch allows the user to select at build time
the bottom IO to leave enough space for such devices.
We cannot calculate this value at runtime because it has to be set
before the PCI devices are enumerated.
Change-Id: Ic590e8aa8b91ff89877cbff6afd10614d33dcf8d
Credit-to: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Reviewed-on: https://review.coreboot.org/17980
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Because Kconfig default values *ONLY* get set when they are first
configured, if you switch mainboards with an existing .config,
the values will not be set as expected for the new board.
This seems to confuse most users, so put a warning in a visible
location to let them know.
Change-Id: Ie6a9c2d139ecd841d654943f14c119ebafd632f2
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17939
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Should have been included in 62902ca45d "sb/ich7: Use common/gpio.h to
set up GPIOs", which was not rebased on addition of this board.
Change-Id: If4547ee43ce6a7a6e4af67e9364613e48f989401
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18047
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
That's undefined behavior in C
Change-Id: I671ed8abf02e57a7cc993d1a85354e905f51717d
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1229557
Reviewed-on: https://review.coreboot.org/18014
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Nothing from that header is used or even declared since
CONFIG_HYPERTRANSPORT_PLUGIN_SUPPORT is not selected on Intel
hardware.
Change-Id: I9101eb6ffa6664a2ab45bc0b247279c916266537
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/18044
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Idwer Vollering <vidwer@gmail.com>
This is more consistent with newer Intel targets.
This a static struct so it is initialized to 0 by default.
To make it more readable:
* only setting to GPIO mode is made explicit;
* only pins in GPIO mode are either set to input or output since this
is ignored in native mode;
* only output pins are set high or low, since this is read-only on
input;
* blink is only operational on output pins, non-blink is not set
explicitly;
* invert is only operational on input pins, non-invert is not set
explicitly.
Change-Id: I05f9c52dee78b7120b225982c040e3dcc8ee3e4e
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17639
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Changes since SeaBIOS 1.9.3
Release 1.10.0:
* Initial support for Trusted Platform Module (TPM) version 2.0
* Several USB XHCI timing fixes on real hardware
* Support for "LSI MPT Fusion" scsi controllers on QEMU
* Support for virtio devices mapped above 4GB
* Several bug fixes and code cleanups
Release 1.10.1:
* Updates for QEMU for reproducible builds
Change-Id: I465700307d72fa44b6900b38b332603ea505ed09
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/18026
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Martin Roth <martinroth@google.com>
cmos_post_init() is called in src/arch/x86/bootblock_simple.c, and
that function is reponsible for bootstrapping the cmos post register
contents. Without this function being called none of the cmos post
functionality works correctly. Therefore, add a call to lib/bootblock.c
which the C_ENVIRONMENT_BOOTBLOCK SoCs use.
BUG=chrome-os-partner:61546
Change-Id: I2e3519f2f3f2c28e5cba26b5811f1eb0c2a90572
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/18043
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
The bare ACPI MMIO address 0xFED80000 was used in multiple
AMD mainboard files as well as the SB800 native code. Reduce
duplication by using a centrally defined value for all AMD
ACPI MMIO access.
Change-Id: I39a30c0d0733096dbd5892c9e18855aa5bb5a4a7
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/18032
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
The console output is garbled until it is fixed in ramstage
by devicetree which sets the uart clock predivider correctly.
Change-Id: I6d6ec0febfec98a8d4a71e1476036c804cf5f08d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/17969
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This allows the make jenkins-build-toolchain to use the
BUILDGCC_OPTIONS variable. Previously, the options were hardcoded.
Change-Id: I5f4c1d3fc8c714ec3640356ae3c86ae157f486d2
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/17766
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
If we use ccache we have to interpret spaces in $CC as separation
characters. The downside is that we can't support spaces in the
compiler's path. But, well...
Change-Id: I4e6e6324389354669a755f570083a40ff00b1bbf
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/18018
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins)
Add rmu.bin to the list of files that exist only in the read-only
section (COREBOOT) of the SPI flash.
TEST=Build and run on Galileo Gen2.
Change-Id: I30cbd3fb2ef1848807e4de4c479dc7a561c1faba
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18031
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Previously, all romstages for this northbridge family
would compile via 1 single C file with everything
included into the romstage.c file (!)
This patch separates the build into separate .o modules
and links them accordingly.
Currently compiles and links all fam10 roms without
breaking other roms.
Both DDR2 and DDR3 have been completed
TESTED on REACTS: passes all boot tests for 2 boards
ASUS KGPE-D16
ASUS KFSN4-DRE
Some extra changes were required to make it compile
otherwise there were unused functions in included "c" files.
This is because I needed to exchange CIMX
for the native southbridge routines. See in particular:
advansus/a785e-i
asus/m5a88-v
avalue/eax-785e
A followup patch may be required to fix the above boards.
See FIXME, XXX tags
Change-Id: Id0f9849578fd0f8b1eab83aed910902c27354426
Signed-off-by: Damien Zammit <damien@zamaudio.com>
Reviewed-on: https://review.coreboot.org/17625
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Timothy Pearson <tpearson@raptorengineering.com>
Currently, some Intel 945 boards miss some or all of the time stamps
*1:start of rom stage*, *2:before ram initialization*, and *3:after ram
initialization*, so add them.
Use the same formatting as used for the board Lenovo X60, which already
has code for all the time stamps.
Change-Id: Ie25747d02fadd74b7d7b7cab234a7a88b2cc0c42
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://review.coreboot.org/17993
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Add the Kconfig value HAVE_MONOTONIC_TIMER and the routine to read the
TSC for the monotonic timer. Simplify the routine to get the TSC
frequency.
TEST=Build and run on Galileo Gen2
Change-Id: I806fb864b01e39277bf2d6276254b0543930c2f6
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18002
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
argv is only filled for macro->argc > 0.
Change-Id: I5ff21098384afc823efa14be3d5565507fb2b3b2
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1287089
Reviewed-on: https://review.coreboot.org/18016
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
closure_type is copied then never used again. Close that leak.
Change-Id: Idd4201f7fc6495fde5ad2e1feb7e499e38986e92
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1287073
Reviewed-on: https://review.coreboot.org/18015
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Add a break statement instead.
While there, fix a bunch of typos in comments.
Change-Id: I465c0188d4b46eabf8d17e69fa0fdc6a9c2ad66e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Found-by: Coverity Scan #1229645
Reviewed-on: https://review.coreboot.org/18013
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
When CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH is set, vbnv_cmos will try
to load VBNV from flash if the VBNV in CMOS is invalid. This is usually
correct, except the case of battery cut-off.
CMOS will always be invalid after battery cut-off if there is no RTC
battery (or if that is dead). However, in current implementation the
backup in flash is only updated in coreboot, while the real battery
cutoff (and the clearing of cutoff flags in VBNV) is done in payload
(Depthcharge) stage. This will create an endless reboot loop that:
1. crossystem sets battery cutoff flag in VBNV_CMOS then reboot.
2. coreboot backs-up VBNV_CMOS to VBNV_flash.
3. Depthcharge sees cutoff flag in VBNV_CMOS.
4. Depthcharge clears cutoff flag in VBNV_CMOS.
5. Depthcharge performs battery cutoff (CMOS data is lost).
6. (Plug AC adapter) Reboot.
7. Coreboot sees invalid VBNV_CMOS, load backup from VBNV_flash.
8. Jump to 3.
As a result, we should always clear battery cutoff flags when loading
backups from VBNV_flash.
BRANCH=glados,reef
BUG=chrome-os-partner:61365,chrome-os-partner:59615
TEST=emerge-reef coreboot bootimage;
Change-Id: I3250a3a179a7b0de9c6e401e4a94dcd23920e473
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/423460
Reviewed-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/18008
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
I've recently added an assertion to ensure that the effective I2C
frequency on Rockchip SoCs is not too far off the 400KHz target due to
divisor rounding errors. A 10KHz margin worked fine for RK3399, but it
turns out that RK3288 actually only ever hit 387KHz since its I2C clocks
are based off the already pretty low 75MHz PCLKs. While we could
probably change the PCLKs to make this closer, that seems like a too
intrusive change for something that has already worked just fine for
years, so just loosen the restriction a little more instead.
BRANCH=None
BUG=chromium:675043
TEST=None
Change-Id: I7e96a1a75b38f8ad3971dd33046699cceb17b80d
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/421095
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://review.coreboot.org/18007
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
We've found that the SLB9645 TPM sometimes seems to randomly start
returning 0xFF bytes for all requests. The exact cause is yet unknown,
but we should try to write our TIS code such that it avoids bad
interactions with this kind of response (e.g. any wait_for_status()
immediately succeeds because all "status bits" are set in the response).
At least for status and burstCount readings we can say for sure that the
value is nonsensical and we're already reading those in a loop until we
get valid results anyway, so let's add code to explicitly discount 0xFF
bytes.
BRANCH=oak
BUG=chrome-os-partner:55764
TEST=None
Change-Id: I934d42c36d6847a22a185795cea49d282fa113d9
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/420470
Reviewed-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://review.coreboot.org/18006
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Kyösti Mälkki