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Using enum cb_err as return type instead of int improves the readability
of the code.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ic1812c4d8d2b4d9ad331a787bd302a4f0707c1fe
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61513
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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Using enum cb_err as return type instead of int improves the readability
of the code.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I55e6d93ca141b687871ceaa763bbbbe966c4b4a3
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61511
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
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Using enum cb_err as return type instead of int improves the readability
of the code. This commit only changes the return value of the static
functions in this file keeping the external interface identical.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I80300e0b24591fc660c3134139b9257e002cdbbb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61510
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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size_t is defined in stddef.h and not stdint.h, so include types.h to
get both.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I3782d3a949b72d1530ebd8078c46bc695f76dc4f
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61509
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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This will provide the definitions for size_t, uint32_t and uintptr_t.
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Icda8d458565bf981545d720d612cbdace04bedd4
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61508
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
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Since the OS provides its own driver for the I2C controller it can
choose to use a bus speed other than the one used at coreboot runtime.
In this case it would be good to provide a way how the needed bus
timings are communicated to the OS, since these are very board-specific
and there is no way that the OS can know them other than read the
appropriate ACPI reported timings.
This patch adds some code to report additional bus speed timings if
there are some defined in the devicetree.
Change-Id: If921e0613864660dc1bb8d7c1b30fb9db8ac655d
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55088
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
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Inspired by discussion in CB:22822.
If I2C bus step response has not been measured, assume the layout to
have been designed with a minimal capacitance and SCL rise and fall
times of 0 ns. The calculations will add the required amount of
reference clocks for the host to drive SCL high or low, such that the
maximum bus frequency specification is met.
Change-Id: Icbafae22c83ffbc16c179fb5412fb4fd6b70813a
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52723
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This is a trivial patch to fix some comments that were generating
notes in the kconfig lint test.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I26a95f17e82910f50c62215be5c29780fe98e29a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47366
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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When the host sends data in i2c bus, device might not send ACK. It means
that data is not processed on the device side, but for now we don't
check for that condition thus wait for the response which will not come.
Designware i2c detect such situation and set TX_ABORT bit. Checking for
the bit will enable other layers to immediately retry rather than
wait-timeout-retry cycle.
BUG=b:168838505
BRANCH=zork
TEST=test on zork devices, now we see "Tx abort detected" instead of I2C
timeout for tpm initializtion.
Change-Id: Ib0163fbce55ccc99f677dbb096f67a58d2ef2bda
Signed-off-by: Kangheui Won <khwon@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47360
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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Individual drivers check whether the concerned device is enabled before
filling in the SSDT. Move the check before calling acpi_fill_ssdt() and
remove the check in the individual drivers.
BUG=None
TEST=util/abuild/abuild
Change-Id: Ib042bec7e8c68b38fafa60a8e965d781bddcd1f0
Signed-off-by: Karthikeyan Ramasubramanian <kramasub@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47148
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Christian Walter <christian.walter@9elements.com>
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Change-Id: I202e5d285612b9bf237b588ea3c006187623fdc3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44609
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
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If the device doesn't return a valid component type, that means the
device is non-functional.
The dw_i2c_regs had invalid offsets for the version field. I got the
correct value from the DesignWare DW_apb_i2c Databook v2.02a. It also
matches what the Picasso PPR says.
I also print out the version field of the controller.
BUG=b:153001807
BRANCH=none
TEST=Tested on PSP where I2C is non functional. Also tested on trembyle
and verified i2c was initialized.
Saw the following in the logs
I2C bus 2 version 0x3132322a
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: If5527972508e0f4b35cc9ecdb1491b1ce85ff3af
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2144540
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40870
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Stefan thinks they don't add value.
Command used:
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)
The exceptions are for:
- crossgcc (patch file)
- gcov (imported from gcc)
- elf.h (imported from GNU's libc)
- nvramtool (more complicated header)
The removed lines are:
- fmt.Fprintln(f, "/* This file is part of the coreboot project. */")
-# This file is part of a set of unofficial pre-commit hooks available
-/* This file is part of coreboot */
-# This file is part of msrtool.
-/* This file is part of msrtool. */
- * This file is part of ncurses, designed to be appended after curses.h.in
-/* This file is part of pgtblgen. */
- * This file is part of the coreboot project.
- /* This file is part of the coreboot project. */
-# This file is part of the coreboot project.
-# This file is part of the coreboot project.
-## This file is part of the coreboot project.
--- This file is part of the coreboot project.
-/* This file is part of the coreboot project */
-/* This file is part of the coreboot project. */
-;## This file is part of the coreboot project.
-# This file is part of the coreboot project. It originated in the
- * This file is part of the coreinfo project.
-## This file is part of the coreinfo project.
- * This file is part of the depthcharge project.
-/* This file is part of the depthcharge project. */
-/* This file is part of the ectool project. */
- * This file is part of the GNU C Library.
- * This file is part of the libpayload project.
-## This file is part of the libpayload project.
-/* This file is part of the Linux kernel. */
-## This file is part of the superiotool project.
-/* This file is part of the superiotool project */
-/* This file is part of uio_usbdebug */
Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This change moves all ACPI table support in coreboot currently living
under arch/x86 into common code to make it architecture
independent. ACPI table generation is not really tied to any
architecture and hence it makes sense to move this to its own
directory.
In order to make it easier to review, this change is being split into
multiple CLs. This is change 3/5 which basically is generated by
running the following command:
$ git grep -iIl "arch/acpi" | xargs sed -i 's/arch\/acpi/acpi\/acpi/g'
BUG=b:155428745
Change-Id: I16b1c45d954d6440fb9db1d3710063a47b582eae
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40938
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
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.acpi_fill_ssdt() does not need to modify the device structure. This
change makes the struct device * parameter to acpi_fill_ssdt() as
const.
Change-Id: I110f4c67c3b6671c9ac0a82e02609902a8ee5d5c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40710
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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dw_i2c_soc_dev_to_bus() does not need to modify the device
structure. Thus, this change makes the struct device * parameter to
dw_i2c_soc_dev_to_bus as const.
Change-Id: Ibf5c8d8127dff2ab2ccbd1f6b4f553e98e81955f
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40704
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Done with sed and God Lines. Only done for C-like code for now.
Change-Id: I38eaffa391ed5971217ffad74a312b1641e431c9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/40051
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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BUG=b:143885765
TEST=I2C clock speed on trembyle is 400kHz
Change-Id: I50e904822823a6fc173d4d4b76f0882b4ce81ae8
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1970655
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39588
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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According to the POSIX standard, %p is supposed to print a pointer "as
if by %#x", meaning the "0x" prefix should automatically be prepended.
All other implementations out there (glibc, Linux, even libpayload) do
this, so we should make coreboot match. This patch changes vtxprintf()
accordingly and removes any explicit instances of "0x%p" from existing
format strings.
How to handle zero padding is less clear: the official POSIX definition
above technically says there should be no automatic zero padding, but in
practice most other implementations seem to do it and I assume most
programmers would prefer it. The way chosen here is to always zero-pad
to 32 bits, even on a 64-bit system. The rationale for this is that even
on 64-bit systems, coreboot always avoids using any memory above 4GB for
itself, so in practice all pointers should fit in that range and padding
everything to 64 bits would just hurt readability. Padding it this way
also helps pointers that do exceed 4GB (e.g. prints from MMU config on
some arm64 systems) stand out better from the others.
Change-Id: I0171b52f7288abb40e3fc3c8b874aee14b9bdcd6
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37626
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: David Guckian
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As discussed on the mailing list and voted upon, the coreboot project
is going to move the majority of copyrights out of the headers and into
an AUTHORS file. This will happen a bit at a time, as we'll be unifying
license headers at the same time.
Updated Authors file is in a separate commit.
Signed-off-by: Martin Roth <martin@coreboot.org>
Change-Id: I1acea8c975d14904b7e486dc57a1a67480a6ee6e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36178
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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When generating entries in SSDT for DesignWare I2C controllers, only
use the speed selected in the devicetree, instead of trying all of them.
This quiets a message which looks like a bug ("dw_i2c: bad counts"),
later on in this driver when checking rise/fall times.
BUG=b:137298661
BRANCH=none
TEST=Boot and verify that I2C controllers still function, and
the nastygram message is gone.
Change-Id: I07207ec95652e8af1a42bfe31214f61a183a134e
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34385
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Paul Fagerburg <pfagerburg@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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This patch is a raw application of
find src/ -type f | xargs sed -i -e 's/IS_ENABLED\s*(CONFIG_/CONFIG(/g'
Change-Id: I6262d6d5c23cabe23c242b4f38d446b74fe16b88
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31774
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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MMIO operations are arch-agnostic so the include
path should not be arch/.
Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/31691
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Add an entry to the soc_clock table for a 216MHz clock so that
the I2C controller clock is calculated correctly when the I2C
bus is used in coreboot.
This was tested by measuring the I2C clock speed on H1 I2C bus
on a sarien board in coreboot and ensuring it is ~400KHz.
Change-Id: I6c3cacdad318a5ce41bc41e3ac81385c2d4f396c
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://review.coreboot.org/c/30068
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Its spreading copies got out of sync. And as it is not a standard header
but used in commonlib code, it belongs into commonlib. While we are at
it, always include it via GCC's `-include` switch.
Some Windows and BSD quirk handling went into the util copies. We always
guard from redefinitions now to prevent further issues.
Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/28927
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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Change-Id: Ib0839933f8b59f0c87cdda4e5374828bd6f1099f
Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org>
Reviewed-on: https://review.coreboot.org/23759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
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Change-Id: I9144937b72a98517cbd41c093cff7bad543b4140
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/27916
Reviewed-by: Martin Roth <martinroth@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Remove extra tab before printk statement.
Change-Id: Id82239f74ac030f25000a08764637f6d1b52b87b
Signed-off-by: Maulik V Vaghela <maulik.v.vaghela@intel.com>
Reviewed-on: https://review.coreboot.org/25295
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Naresh Solanki <naresh.solanki@intel.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
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Fixes: b8dc63bdfe ("ic2/designware: Move Intel i2c logic to shared driver")
Change-Id: Ic521a2d60b403b322ae583bb2c26da6019bf0ab0
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/23714
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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The designware i2c controller indicates that the slave address
shouldn't be programmed while the controller is enabled. Therefore,
switch the ordering of the slave target address and the enable.
Additionally, ensure the controller is disabled prior to the
start of the slave programming sequence.
Lastly, chunk up the i2c_msg segments at differing slave address
boundaries. That allows for simpler programming for the controller
by only doing one slave address transaction chunk at a time.
BUG=b:70232394,b:69250772
Change-Id: Iebc08e2db847cb182fad98e0ff3d799b9a64aca7
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23513
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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To set address on AMD, IC_ENABLE == 0.
BUG=b:69416132
BRANCH=none
TEST=Test communication with i2c TPM on grunt and coral
Change-Id: I7faee8e11439deceab946cc82d30d274b529b90d
Signed-off-by: Chris Ching <chingcodes@chromium.org>
Reviewed-on: https://review.coreboot.org/23293
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
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Right now dw_i2c_get_soc_cfg() is expecting the SoC to implement
that callback for obtaining the bus config. However, we're currently
forcing another parameter of struct device so one can do the lookup.
This works for Intel-based systems since the struct device was needed
to program the BAR, etc. However, from an API standpoint, it just
complicates matters by needing to obtain the struct device. The SoC
already has knowlege of its own devices so it can get the config
itself by bus number. Therefore, remove that contraint from the API.
BUG=b:70232394
Change-Id: Id8558f5deedda0963a46a532a7bf984e168fb270
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23420
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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In ramstage the device_operations are needed for the i2c designware
host controller. Move the intel/common/block/i2c implementation
into the generic driver so other platforms can take advantage of it.
BUG=b:72121803
Change-Id: Id249933fadcc016bfba00e7a6d65f56dfc220724
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23372
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
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Rename the following functions to ensure it's clear that the designware
i2c host controller driver is the one that these functions are
associated with:
i2c_get_soc_cfg() -> dw_i2c_get_soc_cfg()
i2c_get_soc_early_base() -> dw_i2c_get_soc_early_base()
i2c_soc_devfn_to_bus() -> dw_i2c_soc_devfn_to_bus()
i2c_soc_bus_to_devfn() -> dw_i2c_soc_bus_to_devfn()
BUG=b:72121803
Change-Id: Idb7633b45a0bb7cb7433ef5f6b154e28474a7b6d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/23371
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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BUG=b:70232394
BRANCH=none
TEST=emerge-reef coreboot
emerge-glados
Change-Id: Idb453a4d2411163e6b4a8422310bf272eac5d379
Signed-off-by: Chris Ching <chingcodes@chromium.org>
Reviewed-on: https://review.coreboot.org/22822
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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