This patch adds support to reboot the whole board after a hardware
watchdog reset, to avoid the usual TPM issues. Work 100% equivalent to
Veyron.
From my tests it looks like both SRAM and PMUSRAM get preserved across
warm reboots. I'm putting the WATCHDOG_TOMBSTONE into PMUSRAM since that
makes it easier to deal with in coreboot (PMUSRAM is currently not
mapped as cached, so we don't need to worry about flushing the results
back before reboot).
BRANCH=None
BUG=chrome-os-partner:56600
TEST='stop daisydog; cat > /dev/watchdog', press CTRL+D, wait 30
seconds. Confirm that system reboots correctly without entering recovery
and we get a HW watchdog event in the eventlog.
Change-Id: I317266df40bbb221910017d1a6bdec6a1660a511
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 3b8f3d064ad56d181191c1e1c98a73196cb8d098
Original-Change-Id: I17c5a801bef200d7592a315a955234bca11cf7a3
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/375562
Original-Commit-Queue: Douglas Anderson <dianders@chromium.org>
Reviewed-on: https://review.coreboot.org/16578
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
This improves the previous linear search to O(log n). No change in
storage format.
BUG=chromium:640656
BRANCH=none
TEST=Manual
(test empty)
flashrom -i RW_NVRAM -e
Reboot; device should boot normally.
(start using records)
crossystem kern_nv=0xaab0
crossystem recovery_request=1 && reboot
Device should go into recovery mode with reason 1
Reboot again; it should boot normally.
crossystem kern_nv (should still contain 0xaab0)
Repeat steps several times with request=2, 3, etc.
flashrom -i RW_NVRAM -r nvdata
Modify nvdata to copy the first record across all valid
records
flashrom -i RW_NVRAM -w nvdata
Reboot; device should boot normally.
Change-Id: Ieb97563ab92bd1d18a4f6a9e1d20157efe311fb4
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: db9bb2d3927ad57270d7acfd42cf0652102993b1
Original-Change-Id: I1eb5fd9fa6b2ae56833f024bcd3c250147bcc7a1
Original-Signed-off-by: Randall Spangler <rspangler@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/376928
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16577
Tested-by: build bot (Jenkins)
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
checkpatch warns that the asmlinkage storage class should be at the
beginning of the declaration when we define it to be an empty value.
Change-Id: I12292d5b42bf6da9130bb969ebe00fca8efcf049
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16358
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
- Check Kconfig files as well.
- Accept a list of directories to check as a command line argument.
- Only look at src & util directories by default.
- Skip src/vendorcode.
- Remove bypass of payloads/coreinfo/util/kconfig directory, it no
longer exists.
Change-Id: Ia522d3ddc29914220bdaae36ea23ded7338c48fd
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16359
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
For Ada sources, .ali files are emitted together with their respective
.o files during compilation. To convince `make` that an .ali was updated
when the .o was rebuilt, it needs an empty recipe.
Change-Id: Ie47122ff3d00460600ed1db97362abf68f59b751
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/16639
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Enable the cr50 TPM and interrupt as GPE0_DW1_28 for use during
verstage. The interrupt is left in APIC mode as the GPE is
still latched when the GPIO is pulled low.
BUG=chrome-os-partner:53336
Change-Id: I28ade5ee3bf08fa17d8cabf16287319480f03921
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Support reading the ACPI GPE status (on x86) to determine when
the cr50 is ready to return response data or is done processing
written data. If the interrupt is not defined by Kconfig then
it will continue to use the safe delay.
This was tested with reef hardware and a modified cr50 image
that generates interrupts at the intended points.
BUG=chrome-os-partner:53336
Change-Id: I9f78f520fd089cb4471d8826a8cfecff67398bf8
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Implement the generic acpi_get_gpe() function to read and clear
the GPE status for a specific GPE.
Tested by watching GPE status in a loop while generating interrupts
manually from the EC console.
BUG=chrome-os-partner:53336
Change-Id: Id885e98d48c2133a868da19eca3360e2dfb82e84
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Initialize the GPEs from mainboard config in bootblock, so they
can be used in verstage to query latched interrupt status.
I still left it called in ramstage just to be sure that the
configuration was not overwritten in FSP stages.
Tested by reading and reporting GPE status in a loop in verstage
and manually triggering an interrupt on EC console.
BUG=chrome-os-partner:53336
Change-Id: I1af3e9ac1e5c59b9ebb5c6dd1599309c1f036581
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Add a function that can be implemented by the SOC to read
and clear the status of a single GPE. This can be used
during firmware to poll for interrupt status.
BUG=chrome-os-partner:53336
Change-Id: I536c2176320fefa4c186dabcdddb55880c47fbad
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Unify the function names to be consistent throughout the driver
and improve the handling while waiting for data available and
data expected flags from the TPM.
BUG=chrome-os-partner:53336
Change-Id: I7e3912fb8d8c6ad17d1af2d2a7189bf7c0c52c8e
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Clean up the mask and timeout handling in the locality functions
that were copied from the original driver.
BUG=chrome-os-partner:53336
Change-Id: Ifa1445224b475aec38c2ac56e15cb7ba7fcd21ea
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Rename the low-level functions from iic_tpm_read/write to
cr50_i2c_read/write to better match the driver name, and pass in the
tpm_chip structure to the low-level read/write functions as it will
be needed in future changes.
BUG=chrome-os-partner:53336
Change-Id: Ib4a68ce1b3a83ea7c4bcefb9c6f002f6dd4aac1f
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Use two different timeouts in the driver. The 2ms timeout is needed
to be safe for cr50 to cover the extended timeout that is seen with
some commands. The other at 2 seconds which is a TPM spec timeout.
BUG=chrome-os-partner:53336
Change-Id: I77fdd7ea646b8b2fef449f07e3a08bcce174fe8b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reduce the static buffer size from the generic default 1260
down to 64 to match the max FIFO size for the cr50 hardware
and reduce the footprint of the driver.
BUG=chrome-os-partner:53336
Change-Id: Ia88facca607f3fd5072d0d986323fde075f15855
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Originally I thought it would be cleaner to keep this code in one
place, but as things continue to diverge it ends up being easier
to split this into its own driver. This way the different drivers
in coreboot, depthcharge, and the kernel, can all be standalone
and if one is changed it is easier to modify the others.
This change splits out the cr50 driver and brings along the basic
elements from the existing driver with no real change in
functionality. The following commits will modify the code to make
it consistent so it can all be shared with depthcharge and the
linux kernel drivers.
BUG=chrome-os-partner:53336
Change-Id: Ia9a65e72519b95f5739e3b7a16b9c2431d64ebe2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Move the common enums and variables to tpm.h so it can be
used by multiple drivers.
BUG=chrome-os-partner:53336
Change-Id: I0febe98620d0ddd4ec6b46cd3073e48c12926266
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
This patch sets some magic number in magic undocumented registers that
are rumored to make USB 2.0 signal integrity better on Kevin. I don't
see any difference (unfortunately it doesn't solve the problems with
long cables on my board), but I guess it doesn't hurt either way.
BRANCH=None
BUG=chrome-os-partner:56108,chrome-os-partner:54788
TEST=Booted Kevin with USB connected through Servo. Seems to have
roughly the same failure rate as before.
Change-Id: If31fb49f1ed7218b50f24e251e54c9400db72720
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 0c5c8f0f80ea1ebb042bcb91506a6100833e7e84
Original-Change-Id: Ifbd47bf6adb63a2ca5371c0b05c5ec27a0fe3195
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/370900
Original-Reviewed-by: Guenter Roeck <groeck@chromium.org>
Original-Reviewed-by: David Schneider <dnschneid@chromium.org>
Reviewed-on: https://review.coreboot.org/16265
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Add FSP 2.0 support in ramstage.
Populate required Fsp Silicon Init params and configure mainboard
specific GPIOs.
Define function fsp_soc_get_igd_bar needed by fsp2.0 driver for
pre OS screens.
Change-Id: Ib38ca7547b5d5ec2b268698b8886d5caa28d6497
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/16592
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Remove fsp1.1 driver code that adds vbt.bin & use soc/intel/common
instead to add vbt.bin in cbfs.
Also, VBT blob is added to CBFS as RAW type hence when walking the
CBFS to find vbt.bin, search with type as RAW.
Change-Id: I08f2556a34f83a0ea2b67b003e51dcace994361b
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/16610
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This implements PRW method for WLAN and configures PCIe wake pin to
generate SCI.
BUG=chrome-os-partner:56483
TEST=Suspend the system into S3 or S0ix. System should resume through wake
event from wifi.
Change-Id: I9bd078c2de19ebcc652b5d981997d2a5b5f0b1b7
Signed-off-by: Vaibhav Shankar <vaibhav.shankar@intel.com>
Reviewed-on: https://review.coreboot.org/16611
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Julius Werner