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Calling espi_open_generic_io_window in espi_open_io_window depends on
the condition in the preceding if statement, so move the command into an
else block to make it more obvious that this is the case.
TEST=Timeless build results in identical image.
Change-Id: I3039817afd79c30a2df2f2f54e7848f52dc2c487
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44353
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
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espi_poll_status describes better what the function actually does, since
it polls the status register instead of just doing a single read to
check.
Change-Id: I0feeef5504bd911e1fb0a00d4f4c546df3548db2
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44354
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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It's only an error if bits other than ESPI_STATUS_DNCMD_COMPLETE are set
in the status register. If ESPI_STATUS_DNCMD_COMPLETE isn't set, the
command failed, so we expect that one to be set.
Change-Id: I6f1fb5a59b1ecadd6724a07212626f21fb90e7e7
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44352
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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When address and data register for the SIO control register access is
passed as one I/O region with a size of 2, the corresponding special
decode enable register should be used instead of a generic one to save
the rather limited generic ones for other decode ranges.
Change-Id: Ie54ff6afa2bd2156f7b3a3cf83091f1f932b6993
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44351
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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We can just return at all places where the ret variable was written
before its value gets returned at the end of the function.
Change-Id: Id87f41c0d9e3397879ac3d15b13179cca1a1263f
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44350
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Since this is a bit mask applied to the raw value of a 32 bit register,
this should be a 32 bit unsigned type.
Change-Id: I9d9930963d8c827a84dc1f67e2f2fa8f95ab40f2
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44349
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Th register number passed to the low level read/write functions should
never be negative.
Change-Id: I5d7e117b3badab900d030be8e69ded026d659f8a
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44348
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Exclude lpc_get_spibase() on the PSP. This also simplifies the
espi_get_bar() function.
BUG=b:159811539
TEST=Build & boot trembyle; Verify address in PSP & x86
Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I5927dd40610860b54bb35a7e5b03ddb731597745
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43468
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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<types.h> is supposed to provide <commonlib/bsd/cb_err.h>,
<stdbool.h>,<stdint.h> and <stddef.h>. So remove those includes
each time when <types.h> is included.
Change-Id: I886f02255099f3005852a2e6095b21ca86a940ed
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41817
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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This change adds a helper function espi_setup() which allows SoCs to
configure connection to slave. Most of the configuration is dependent
upon mainboard settings in espi_config done as part of the device
tree. The general flow for setup involves the following steps:
1. Set initial configuration (lowest operating frequency and single mode).
2. Perform in-band reset and set initial configuration since the
settings would be lost by the reset.
3. Read slave capabilities.
4. Set slave configuration based on mainboard settings.
5. Perform eSPI host controller configuration to match the slave
configuration and set polarities for VW interrupts.
6. Perform VW channel setup and deassert PLTRST#.
7. Perform peripheral channel setup.
8. Perform OOB channel setup.
9. Perform flash channel setup.
10. Enable subtractive decoding if requested by mainboard.
BUG=b:153675913
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I872ec09cd92e9bb53f22e38d2773f3491355279e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41272
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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CB:41194 got rid of "this file is part of" lines. However, there are
some changes that landed right around the same time including those
lines. This change uses the following command to drop the lines from
new files:
sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool)
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: Ic3c1d717416f6b7e946f84748e2b260552c06a1b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41342
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change provides a helper function espi_update_static_bar() that
informs the eSPI common driver about the static BAR to use for eSPI
controller instead of reading the SPIBASE. This is required to support
the case of verstage running on PSP.
BUG=b:153675913
Signed-off-by: Furquan Shaikh <furquan@google.com>
Change-Id: I1f11bb2e29ea0acd71ba6984e42573cfe914e5d7
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41256
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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This change adds the following helper functions for eSPI decode:
1. espi_open_io_window() - Open generic IO window decoded by eSPI
2. espi_open_mmio_window() - Open generic MMIO window decoded by eSPI
3. espi_configure_decodes() - Configures standard and generic I/O
windows using the espi configuration provided by mainboard in device tree.
BUG=b:153675913,b:154445472
Change-Id: Idb49ef0477280eb46ecad65131d4cd7357618941
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41073
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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