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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: Iacd0483e4b3229aca602bb5bb40586eedf35a6ea
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16670
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: I551276f36ff0d2eb5b5ea13f019cdf4a3c749a09
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16669
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: Ie2dfb7ede1bcda0e77070df945c47c1428115907
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16668
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: Ifdcb3be0036b2c02bfbd1bcd326e9519d3726ee0
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16667
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: I826a7f024f8d137453af86ba920e0a3a734f7349
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16666
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: Ia396fc48b8fe6e56e7071db9d74561de02b5b50e
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16665
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: I6f9f71d501b60299edad4b16cc553a85391a1866
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16664
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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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: I3b62b680773d23cc5a7d2217b9754c6c28bccfa7
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16663
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Move the common enums and variables to tpm.h so it can be
used by multiple drivers.
BUG=chrome-os-partner:53336
Change-Id: Ie749f13562be753293448fee2c2d643797bf8049
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16662
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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These values are found in util/cbfstool/cbfs.h.
Change-Id: Iea4807b272c0309ac3283e5a3f5e135da6c5eb66
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16646
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: Iab2a879ebdea9d93ef5eb7e3abf875036c1e1cb4
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16641
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: If3cdfdff60c92e3427f1b285e2bca92e2bb2a1cb
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16640
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I86a252598666af635281eaa467020acb53d71c77
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16642
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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In preparation for making this check optional, move it into its own
function. load_self_segments() is already long and we don't want to make
it longer.
BUG=chrome-os-partner:56314
BRANCH=none
TEST=boot on gru and see that BL31 loads and runs correctly
Change-Id: If48d2bf485a23f21c5599670e77a7b8b098f1a88
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 2381e02efa2033857ac06acbc4f0c0dd08de1080
Original-Change-Id: I005e5e4d9b2136605bdd95e9060655df7a8238cb
Original-Signed-off-by: Simon Glass <sjg@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/381092
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16585
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Tidy up a few things which look incorrect in this file.
BUG=chrome-os-partner:56314
BRANCH=none
TEST=build for gru
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 434e9ceb5fce69b28de577cdc3541a439871f5ed
Original-Change-Id: Ida7a62ced953107c8e1723003bcb470c81de4c2f
Original-Signed-off-by: Simon Glass <sjg@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/376848
Original-Commit-Ready: Simon Glass <sjg@google.com>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Change-Id: If8c283fe8513e6120de2fd52eab539096a4e0c9b
Reviewed-on: https://review.coreboot.org/16584
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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In kernel side we set 1.1v for 1.5G, even for coreboot RO,
a higher voltage could be safer, 1.2v now seems too high.
BRANCH=none
BUG=chrome-os-partner:56948
TEST=bootup
Change-Id: I852e0d532369aad51b12770e2efb01aacf6662ce
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 000b5c099373be2a1f83c020ba23a0e79ea78fab
Original-Change-Id: Iecc620deee553c61a330353ac160aa3a36f516df
Original-Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/380896
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16583
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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The SPI driver is quite slow at reading data. For example, with a 24MHz
clock on gru it achieves a read speed of only 13.9Mbps.
We can correct this by reading the status registers once, then reading as
many bytes as are available before checking the status registers again. It
seems likely that a status register read requires synchronizing with the
SPI FIFO clock domain, which takes a while.
BUG=chrome-os-partner:56556
BRANCH=none
TEST=run on gru and see the speed increase from 13.920 Mbps to 24.712 Mbps
Change-Id: I24aed0c9c6c5445634c4e056922afaee4e9a7b33
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 49c2fc20d7d7d703763e9b0a6f68313a349a84b9
Original-Change-Id: I42745f01f0fe069f6ae26d866004d36bb257e6b2
Original-Signed-off-by: Simon Glass <sjg@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/376945
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16582
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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This enhances gradation of some icons on vboot screens.
BUG=chrome-os-partner:56056
BRANCH=none
TEST=Booted Jerry
Change-Id: Ia19d585b69e7701040209e8bf0b8a6990a166c95
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 4e7a42c999673ebd89c5b30845a4a5ec93852166
Original-Change-Id: I126cb7077c834e1a8b0a625a592dce8789b5876c
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/376884
Reviewed-on: https://review.coreboot.org/16581
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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We did yet another small adjustment to the PWM regulator ranges for
Kevin rev6... this patch reflects that in code. Also rewrite code and
descriptions to indicate that these new ranges are not just for Kevin,
but also planned to be used on Gru rev2 and any future Gru derivatives
(which as I understand it is the plan, right?).
BRANCH=None
BUG=chrome-os-partner:54888
TEST=Booted my rev5, for whatever that's worth...
Change-Id: Id78501453814d0257ee86a05f6dbd6118b719309
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 4e8be3f09ac16c1c9782dee634e5704e0bd6c7f9
Original-Change-Id: I723dc09b9711c7c6d2b3402d012198438309a8ff
Original-Signed-off-by: Julius Werner <jwerner@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/379921
Original-Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-on: https://review.coreboot.org/16580
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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This enhances gradation of some icons on vboot screens.
BUG=chrome-os-partner:56056
BRANCH=none
TEST=Booted kevin-tpm2
Change-Id: I2fc943f89386ccc6cd9293f5811182a5a51d99b0
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: bb1f0fb00d023c045305edc6c9fc655b764a4e8c
Original-Change-Id: Ieb61830b9555da232936087cdcf7c61a1e55bab4
Original-Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/376883
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16579
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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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>
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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>
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Change-Id: I87f8978b8ec6ddc11dd66a77cbb630e057f9831b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16623
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
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Change-Id: I63f58d95fa01b1f73f3620a5d13f21ef62e2404c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16588
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: Ib00a9b2feb723d46642d86b2706728bbca7dd68d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16616
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins)
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Change-Id: I5ff894f23dc2a2c59bc5e5d1de4287a6b9c9922c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16625
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I24505af163544a03e3eab72c24f25fcdc4b1b16c
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16624
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: If700dc5fa9ae33649993557f71db0fe1eb76204b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16634
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I964512c0e913f7443f3dea859b01358645cfd8a6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16632
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: Ibeab5e7fe0a9005e96934b3b43cfb247ef2e2340
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16615
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Change-Id: I0ee4c443b6861018f05cfc32135d632fd4996029
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16614
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Change-Id: Ic4e287209cc45fae574e7af9d45b8a0e648ef686
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16627
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I8fa1e39bfd950475e3b55d6debcbfd92615aa379
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16628
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I53aa17076135e55665f2f7c6ede217388fc50cca
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16633
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: Ia60729db83333c1159862cf604de321e3af8dcb1
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16631
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: Ib48c98bb161b92b28497df26fcfd0eae2c6829df
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16635
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I1b5cdfaf39be639a7ef71e66e91284fa186fbb86
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16630
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I3781c36a3f354bfd54d20488b95d4f2307c3bce2
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16629
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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Change-Id: I949ff7de072e5e0753d9c8ff0bf98abfca25798b
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16637
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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This reverts commit 64df72e8e2d1c086705325533767ca5e201e842a.
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This reverts commit c565f9910707b91fcc7a27bab28806e558bb474d.
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This reverts commit 97a2a1ece152b6d40a524361721405b77c37959d.
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This reverts commit 93c778688f0bf2f90334505a3082a2cd4ce1623a.
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This reverts commit 6f5ceb26b9b3e1455ebbd6192e1d2c832bddc77e.
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This reverts commit 557e1a729a9ca89e814220b6203b7ac0dc446913.
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This reverts commit 1241e7db55aff313e56bf4546d969c11368b08a2.
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This reverts commit 884dfe632940b940df68d09f997fa5cd25121def.
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This reverts commit 5e3dad66227bba4be9365ee76d00231bb5577b56.
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This reverts commit 3d43a7c111d00be246160a04023fe438ae0cac57.
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This reverts commit a5e419c51187d24818f056327746a18676fe3a20.
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This reverts commit 24de342438208d9b843e87627f15b9a272285b0f.
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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>
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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>
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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>
|
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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>
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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>
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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>
|
|
This implements acpi name for PCIe root port.
BUG=chrome-os-partner:56483
Change-Id: Ifec1529c477f554d36f3932b66f62eea782fdcaa
Signed-off-by: Vaibhav Shankar <vaibhav.shankar@intel.com>
Reviewed-on: https://review.coreboot.org/16621
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
In spd_util.c function mainboard_get_spd_data(), spd_file can
either be NULL or will point to the first byte of the SPD data,
and should not be dereferenced.
Change-Id: I08677976792682cc744ec509dd183eadf5e570a5
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/16612
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
|
|
The correct id string for gm45 is "$VBT CANTIGA ".
This can be found in the gm45 option rom:
"strings vbios.bin | grep VBT".
Change-Id: Icd67a87dac774b4b3c211511c784c4fb4e2ea97c
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16551
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
This implements "Keep VESA framebuffer" behavior on VGA output of gm45.
This patch reuses Linux code to compute vga divisors.
Change-Id: I2db5dd9bb1a7e309ca763b1559b89f7f5c8e6d3d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16338
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
The intel x4x and gm45 have very similar integrated graphic devices.
Currently the x4x native graphic init enables VGA, while gm45 can output
on LVDS.
This patch reuses the x4x graphic initialisation code
to enable output on VGA in gm45 in a way that the behavior is similar to vbios:
If no VGA display is connected the internal LVDS screen is used.
If an external screen is detected on the VGA port it will be used instead.
Change-Id: I7e9ff793a5384ad8b4220fb1c0d9b28e6cee8391
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/16295
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
In order to ensure bootblock console output shows up in cbmem
console unconditionally select BOOTBLOCK_CONSOLE.
BUG=chrome-os-partner:57513
Change-Id: Ie560dd0e7102c79f6db186a11d6f934505bac116
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16622
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
Unconditionally turn on postcar console for apollolake.
BUG=chrome-os-partner:57513
Change-Id: I3d956be4a5834a4721767d34216eebeabef3e315
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16620
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
Implement postcar stage cbmem console support. The postcar stage
is more like ramstage in that RAM is already up. Therefore, in
order to make the cbmem console reinit flow work one needs the cbmem
init hook infrastructure in place and the cbmem recovery called.
This call is added to x86/postcar.c to achieve that. Additionally,
one needs to provide postcar stage cbmem init hook callbacks for
the cbmem console library to use. A few other places need to
become postcar stage aware so that the code paths are taken.
Lastly, since postcar is backed by ram indicate that to the
cbmem backing store.
BUG=chrome-os-partner:57513
Change-Id: I51db65d8502c456b08f291fd1b59f6ea72059dfd
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16619
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
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The console_init(), MTRR printing, and loading ramstage
logic was previously all in assembly. Move that logic
into C code so that future features can more easily be
added into the postcar boot flow.
BUG=chrome-os-partner:57513
Change-Id: I332140f569caf0803570fd635d894295de8c0018
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16618
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
|
The declarations for console_init() were unconditionally
exposed even though there is a Kconfig option. Correct this
by honoring the CONFIG_POSTCAR_CONSOLE condition.
BUG=chrome-os-partner:57513
Change-Id: Id45ae3d7c05a9f4ebcf85c446fc68a709513bb0f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16617
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
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When the boot media is memory mapped mark it as cacheable
after romstage. Otherwise the boot media is uncacheable and
all loads from it take longer. Loading FSP-S alone in ramstage
went down to 17.5ms from 54ms.
BUG=chrome-os-partner:56656
Change-Id: I6703334ba8fe98aca26ba1c995d6d3abb0ddef33
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16613
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
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Add a stripped-down version of libgnat. This is somehow comparable to
libgcc but for Ada programs. It's licensed under GPLv3 but with the
runtime library exception. So it's totally fine to link it with our
GPLv2 code and keep it under GPLv2.
Change-Id: Ie6522abf093f0a516b9ae18ddc69131bd721dc0c
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/11836
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Edward O'Callaghan <edward.ocallaghan@koparo.com>
|
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There are certain board-specific options for reef variants. The
big one is the DPTF settings. Rearrange the ASL files such
that dsdt.asl is the main landing area. The ACPI options for
Chrome EC are contained in the variant/ec.h header so the
actual code #includes can just reside in dstd.asl. Since most
of the mainboard specific peripherals are auto generated by
the acpigen from devicetree there's no real separate need
for mainboard.asl. The one thing not addressed in this CL
is the notion of a variant having the Chrome EC or not (along
with lid, etc). Future indirection can be provided when needed
to address that requirement.
BUG=chrome-os-partner:56677
Change-Id: I5c888f5fc64913dcff010c28f87e69ac5449e6b6
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16604
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
|
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Currently we are setting the gpio_tier1_sci in smihandler before
going to S3. But this won't work for S0iX as it happens from Linux
kernel and SMI handler is not involved in that flow. We need to
set this bit i.e. bit 15 in ACPI gpe0a register at 0x430h. The Linux
kernel before going to sleep checks what values are passed through
ASL as wake events (through _PRW), keeps those enabled only and
clears other bits in gpe0 enable registers. So we need to inform
the kernel to keep gpio_tier_sci also set as these are needed for
any wake event. This patch adds ASL code for sleep button device with
HID id PNP0C0E. We are adding _PRW method for sleep button device
with this patch.
BUG=chrome-os-partner:56483
TEST=System resumes from S3 on lidopen, powerbutton and USB wake.
Also from S0iX system is resuming for WIFI wake.
Change-Id: Ie8517cad9cd37c25788c22250894d4f9db344ff9
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/16564
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
|
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This patch disables the SataSetMaxGen2 flag.
This flag is a power saving option,
which forces the SATA to GEN2.
Payload SeaBIOS 1.9.1, Lubuntu 16.04, Kernel 4.4.
$ dmesg | grep ahci #before patch
ahci 0000:00:11.0: AHCI 0001.0300 32 slots 2 ports 3 Gbps 0x3 impl SATA mode
$ dmesg | grep ahci #after patch
ahci 0000:00:11.0: AHCI 0001.0300 32 slots 2 ports 6 Gbps 0x3 impl SATA mode
Change-Id: I48361190969e6d38ddb5692f5e54b016b359fbb1
Signed-off-by: Fabian Kunkel <fabi@adv.bruhnspace.com>
Reviewed-on: https://review.coreboot.org/15906
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
The h8s needs around 3s to respond to ps2 commands
Change-Id: I0cf01969975b8dd3839eadf90cb2dac0f1eaafc4
Signed-off-by: Alexander Couzens <lynxis@fe80.eu>
Reviewed-on: https://review.coreboot.org/16505
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
Change-Id: Ie7ee547ab34441f93433936334e9881dd7cc0371
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16599
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
Change-Id: I5cd04d49e90502394b4dd84f6a5a727e02f19fdc
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16601
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
Change-Id: Ib1f9926ced1fd382c782f5098eb1ad98330cf655
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16600
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
|
Change-Id: I296254d61fdc5c120e1e2abcbecb4677f3216d26
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/16598
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
|
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In commit 4f2754c
'fsp_broadwell_de: Add Kconfig switch for SERIRQ operation mode'
the default operation mode of SERIRQ was changed from continuous to quiet.
Set the mode to continuous for this mainboard to keep the behavior unchanged.
Change-Id: I7c3675d4ee8cff428621f4e64411738193e654b2
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/16576
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: York Yang <york.yang@intel.com>
Reviewed-by: Martin Roth <martinroth@google.com>
|
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- Update lines to make them shorter than 80 chaacters
- Update using #defines from acpi_ivrs.h
Change-Id: I1bf6cdac00e28f5b0969fd8f98e37c66f8e43110
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16568
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
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I put in the decimal values for these instead of the hex values.
Instead of running them through a BCD converter, update them to use
the hex values.
Change-Id: I3fa46f055c3db113758f445f947446dd5834c126
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16567
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
|
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Functionally, this should be roughly the same. The only real difference
should be removing the 4 bytes of padding from the end of the 4 byte
entries. The spec mentions a boundary for the 4 byte entries (which we
are ignoring), but doesn't mention a boundary for the 8 byte entries,
and I can't think of any other reason that the padding might be needed.
- Wrap long lines.
- Combine if statements to clean up indentation.
- Use #defines from acpi_ivrs.h to make commands easier to understand.
- Remove padding from 4 byte entries that made them 8 bytes in length.
- Set the pointer p at init, and clear the value at p if the device
we're looking at is enabled instead of setting p in every if statement.
- Look at the command type to update current and length.
- Treat malloc & free as if they were typical instead of coreboot
specific versions. Check to make sure the malloc worked and only
free on the last loop instead of every time.
Change-Id: I79dd5f9e930fad22a09d1af78f33c1d9a88b3bfe
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/16532
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
|
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This patch removes setting of gpio_tier1_sci_en from mainboard
smihandler code. Gpio_tier1_sci enable bit is set from gpio.asl
now.
BUG=chrome-os-partner:56483
TEST=System resumes from S3 on lidopen, powerbutton and USB wake.
Also from S0iX system is resuming for WIFI wake.
Change-Id: I26fd3fd9fcc83c988bcff1bda4da7a2e3da98ce6
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/16566
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
|
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This patch removes setting of gpio_tier1_sci_en from mainboard
smihandler code. Gpio_tier1_sci enable bit is set from gpio.asl
now.
BUG=chrome-os-partner:56483
TEST=System resumes from S3 on lidopen, powerbutton and USB wake.
Also from S0iX system is resuming for WIFI wake.
Change-Id: I066f0907a1c597e6fee09821910c59a8a90cccaa
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/16565
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Andrey Petrov <andrey.petrov@intel.com>
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move lb_framebuffer function in soc/intel/apollolake
to driver/intel/fsp20 so that fsp 2.0 bases soc's can
use common lb_framebuffer function.
Change-Id: If11bc7faa378a39cf7d4487f9095465a4df84853
Signed-off-by: Naresh G Solanki <naresh.solanki@intel.com>
Reviewed-on: https://review.coreboot.org/16549
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
|
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Populate mainboard related Memory Init Params i.e, SPD
Rcomp values, DQ and DQs values.
Change-Id: Id62c43a72a0e34fa2e8d177ce895d395418e2347
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/16316
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Populate SoC related Memory initialization params.
Post memory init, set DISB, setup stack and MTRRs using the postcar
funtions provided in postcar_loader.c.
TEST=Build and boot kunimitsu, dram initialization done.
ramstage is loaded.
Change-Id: I8d943e29b6e118986189166d92c7891ab6642193
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/16315
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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If FSP_M_XIP is selected, then relocate FSP-M binary
while adding it in CBFS so that it can be executed in place.
Change-Id: I2579e8a9be06cfe8cc162337fb1064d15842229f
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/16563
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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The TPM driver was largely ignoring the meaning of the command
ready bit in the status register, instead just arbitrarily
sending it at the end of every receive transaction.
Instead of doing this have the command ready bit be set at the
start of a transaction, and only clear it at the end of a
transaction if it is still set, in case of failure.
Also the cr50 function to wait for status and burst count was
not waiting the full 2s that the existing driver does so that
value is increased. Also, during the probe routine a delay is
inserted after each status register read to ensure the TPM has
time to actually start up.
Change-Id: I1c66ea9849e6be537c7be06d57258f27c563c1c2
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16591
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@googlemail.com>
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It is very useful to have the ability to see I2C transactions
performed by the host firmware. This patch adds a simple
Kconfig option that will enable debug output.
Change-Id: I55f1ff273290e2f4fbfaea56091b2df3fc49fe61
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16590
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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This change modifies the lpss_i2c driver to behave more like
the Linux kernel driver. In particular the controller is only
enabled when processing a transaction, and is disabled after.
This means that errors in one transaction will not affect later
transactions.
Also when disabling the controller the code is supposed to wait
on the enable bit in the "enable status" register and not in
the enable control register. In order to get access to this
register the reg map was expanded to include all registers.
This was tested with the cr50 TPM driver to ensure that if a
transaction does fail that it can be successfully retried instead
of the bus being unusable.
Change-Id: I43a546d54996ba0f08550a801927b8f7a6690cda
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16589
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>
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