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The cros_ec_decode_region() function is only used in combination
with the crosec cmds. Move the function to the correct place.
Signed-off-by: Moritz Fischer <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: [email protected]
Acked-by: Simon Glass <[email protected]>
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Move crosec commands from drivers/misc/cros_ec.c to
cmd/cros_ec.c
Acked-by: Simon Glass <[email protected]>
Signed-off-by: Moritz Fischer <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Bin Meng <[email protected]>
Cc: Miao Yan <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Przemyslaw Marczak <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Nishanth Menon <[email protected]>
Cc: [email protected]
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Boards where ECs that use a I2C port != 0 specify this in the
devicetree file via the google,remote-bus property.
Previously this was ignored and hardcoded to port 0.
Signed-off-by: Moritz Fischer <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: [email protected]
Acked-by: Simon Glass <[email protected]>
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In preparation for converting the cros_ec keyboard driver to driver model,
adjust the cros_ec functions it will use to use a normal struct udevice.
Signed-off-by: Simon Glass <[email protected]>
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This is not needed with driver mode. Remove it.
Signed-off-by: Simon Glass <[email protected]>
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Add a driver to support the special LDO access used by spring. This is a
custom method in the cros_ec protocol - it does not use an I2C
pass-through.
There are two implementation choices:
1. Write a special LDO driver which can talk across the EC. Duplicate all
the logic from TPS65090 for retrying when the LDO fails to come up.
2. Write a special I2C bus driver which pretends to be a TPS65090 and
transfers reads and writes using the LDO message.
Either is distasteful. The latter method is chosen since it results in less
code duplication and a fairly simple (30-line) implementation of the core
logic.
The crosec 'ldo' subcommand could be removed (since i2c md/mw will work
instead) but is retained as a convenience.
Signed-off-by: Simon Glass <[email protected]>
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The Chrome OS EC supports tunnelling through to an I2C bus on the EC. This
currently uses a copy of the I2C command code and a special 'crosec'
sub-command.
With driver model we can define an I2C bus which tunnels through to the EC,
and use the normal 'i2c' command to access it. This simplifies the code and
removes some duplication.
Add an I2C driver which tunnels through to the EC. Adjust the EC code to
support binding child devices so that it can be set up. Adjust the existing
I2C xfer function to fit driver model better.
For now the old code remains to allow things to still work. It will be
removed in a later patch once the new flow is fully enabled.
Signed-off-by: Simon Glass <[email protected]>
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Now that driver model handles cros_ec init, we can drop this special code.
Signed-off-by: Simon Glass <[email protected]>
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Since all supported boards enable this option now, we can remove it along
with the old code.
Signed-off-by: Simon Glass <[email protected]>
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These functions are going away, so use the new uclass support instead.
Signed-off-by: Simon Glass <[email protected]>
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Add support for driver model if enabled. This involves minimal changes
to the code, mostly just plumbing around the edges.
Signed-off-by: Simon Glass <[email protected]>
Acked-by: Jagannadha Sutradharudu Teki <[email protected]>
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The Chrome EC has a feature where you can access its I2C buses through a
pass-through arrangement. Add a command to support this, and export the
function for it also.
Reviewed-by: Vadim Bendebury <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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Add a simple emulation of the Chrome OS EC for sandbox, so that it can
perform various EC tasks such as keyboard handling.
Reviewed-by: Vadim Bendebury <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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Protocol version 3 will be attempted first; if the EC doesn't support
it, u-boot will fall back to the old protocol version (2).
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Randall Spangler <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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Version 1 protocols (without command version) were already no longer
supported in cros_ec.c. This removes some dead code from the
cros_ec_i2c driver.
Version 2 protcols (with command version) are now called
protocol_version=2, instead of cmd_version_is_supported=1.
A subsequent change will introduce protocol version 3 for SPI.
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Randall Spangler <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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The EC messages have been expanded and some parts have been renamed.
Signed-off-by: Simon Glass <[email protected]>
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In order to talk to the EC properly we need to be able to understand the
layout of its internal flash memory. This permits emulation of the EC
for sandbox, and also software update in a system with a real EC.
Signed-off-by: Simon Glass <[email protected]>
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Add a common library for obtaining access to the Chrome OS EC. This is
used by boards which need to talk to the EC.
Reviewed-by: Vadim Bendebury <[email protected]>
Tested-by: Vadim Bendebury <[email protected]>
Signed-off-by: Vadim Bendebury <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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Signed-off-by: Wolfgang Denk <[email protected]>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <[email protected]>
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This patch adds the cros_ec driver that implements the protocol for
communicating with Google's ChromeOS embedded controller.
Signed-off-by: Bernie Thompson <[email protected]>
Signed-off-by: Bill Richardson <[email protected]>
Signed-off-by: Che-Liang Chiou <[email protected]>
Signed-off-by: Doug Anderson <[email protected]>
Signed-off-by: Gabe Black <[email protected]>
Signed-off-by: Hung-ying Tyan <[email protected]>
Signed-off-by: Louis Yung-Chieh Lo <[email protected]>
Signed-off-by: Randall Spangler <[email protected]>
Signed-off-by: Sean Paul <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Vincent Palatin <[email protected]>
Acked-by: Simon Glass <[email protected]>
Tested-by: Simon Glass <[email protected]>
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