u-boot.git/drivers/misc, branch v2021.04 Unnamed repository; edit this file 'description' to name the repository. dm: i2c: allow disabling driver model in SPL 2021-02-21T05:07:30+00:00 Igor Opaniuk igor.opaniuk@foundries.io 2021-02-09T11:52:43+00:00 d1f3abe1e71f8e160ca09272ff0463b1b927635d At present if U-Boot proper uses driver model for I2C, then SPL has to also. While this is desirable, it places a significant barrier to moving to driver model in some cases. For example, with a space-constrained SPL it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves adjusting some drivers. This patch introduces a separate Kconfig symbols for enabling DM_I2C and DM_I2C_GPIO support in SPL. This will also help to get away from dirty workarounds to achieve non-DM I2C support for SPL, which is currently used in some board header files like: ifdef CONFIG_SPL_BUILD undef CONFIG_DM_I2C endif Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io> Reviewed-by: Tom Rini <trini@konsulko.com> 
At present if U-Boot proper uses driver model for I2C, then SPL has to
also. While this is desirable, it places a significant barrier to moving
to driver model in some cases. For example, with a space-constrained SPL
it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves
adjusting some drivers.

This patch introduces a separate Kconfig symbols for enabling DM_I2C and
DM_I2C_GPIO support in SPL.

This will also help to get away from dirty workarounds to
achieve non-DM I2C support for SPL, which is currently used in some
board header files like:

ifdef CONFIG_SPL_BUILD
undef CONFIG_DM_I2C
endif

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Igor Opaniuk <igor.opaniuk@foundries.io>
Reviewed-by: Tom Rini <trini@konsulko.com>
common: Drop asm/global_data.h from common header 2021-02-02T20:33:42+00:00 Simon Glass sjg@chromium.org 2020-10-31T03:38:53+00:00 401d1c4f5d2d29c4bc4beaec95402ca23eb63295 Move this out of the common header and include it only where needed. In a number of cases this requires adding "struct udevice;" to avoid adding another large header or in other cases replacing / adding missing header files that had been pulled in, very indirectly. Finally, we have a few cases where we did not need to include <asm/global_data.h> at all, so remove that include. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@konsulko.com> 
Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
cros_ec: Add vstore support 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:31+00:00 10f746591fba16a48f0e3d14641be09f01982807 The EC can store small amounts of data for the benefit of the verified boot process. Since the EC is seldom reset, this can allow the AP to store data that survives a reboot or a suspend/resume cycle. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org> 
The EC can store small amounts of data for the benefit of the
verified boot process. Since the EC is seldom reset, this can allow the
AP to store data that survives a reboot or a suspend/resume cycle.

Add support for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Allow use with of-platdata 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:30+00:00 d9ffaef6fe25e7a29e63911fe1af5d18c9d77a45 Avoid reading the device tree when of-platdata is in use. Signed-off-by: Simon Glass <sjg@chromium.org> 
Avoid reading the device tree when of-platdata is in use.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Show events in human-readable form 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:29+00:00 3ae338299e1649ef9a38c45fcde864022c448a9e Add a command to show the current events as a list of names. This is easier to decipher than a bit mask. Signed-off-by: Simon Glass <sjg@chromium.org> 
Add a command to show the current events as a list of names. This is
easier to decipher than a bit mask.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Add support for switches 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:28+00:00 3a6c994f3896d66e617acdf9bb58ffc4def08b71 On x86 platforms the EC provides a way to read 'switches', which are on/off values determined by the EC. Add a new driver method for this and implement it for LPC. Signed-off-by: Simon Glass <sjg@chromium.org> 
On x86 platforms the EC provides a way to read 'switches', which are
on/off values determined by the EC.

Add a new driver method for this and implement it for LPC.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Support reading EC features 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:26+00:00 8aec32f6abd722b141d96bc095999efa76bd0327 The EC can support a variety of features and provides a way to find out what is available. Add support for this. Also update the feature list to the lastest available while we are here. This is at: https://chromium.googlesource.com/chromiumos/platform/ec/+/refs/heads/master/include/ec_commands.h Signed-off-by: Simon Glass <sjg@chromium.org> 
The EC can support a variety of features and provides a way to find out
what is available. Add support for this.

Also update the feature list to the lastest available while we are here.
This is at:

   https://chromium.googlesource.com/chromiumos/platform/ec/+/refs/heads/master/include/ec_commands.h

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Add support for reading the SKU ID 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:25+00:00 7791df576c4e0bcb0529850e14173d028ec37275 This allows reading strapping pins attached to the EC. Add an implementation for this. Signed-off-by: Simon Glass <sjg@chromium.org> 
This allows reading strapping pins attached to the EC. Add an
implementation for this.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Add run-time check for input buffer overflow 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:24+00:00 698e30f7a862ae6eb4754ef0d42b8dc8cf416edd This should not happen in normal operation, but the EC might have a bug, so add a run-time check just in case. Signed-off-by: Simon Glass <sjg@chromium.org> 
This should not happen in normal operation, but the EC might have a bug,
so add a run-time check just in case.

Signed-off-by: Simon Glass <sjg@chromium.org>
cros_ec: Tidy up a few delays 2021-01-30T21:25:41+00:00 Simon Glass sjg@chromium.org 2021-01-16T21:52:23+00:00 2525e53c2766a8731ebee9d13dd491a8ba0db2cb Allow a longer time for the EC to reboot. Also use a constant for the hash delay time, so it is clear what it is for. Signed-off-by: Simon Glass <sjg@chromium.org> 
Allow a longer time for the EC to reboot. Also use a constant for the
hash delay time, so it is clear what it is for.

Signed-off-by: Simon Glass <sjg@chromium.org>