u-boot.git/drivers/misc, branch v2014.04

Merge branch 'master' of git://git.denx.de/u-boot-arm into master

2014-04-04T09:35:30+00:00

Conflicts:
	arch/arm/cpu/arm926ejs/mxs/mxsimage.mx23.cfg
	arch/arm/cpu/arm926ejs/mxs/mxsimage.mx28.cfg

Signed-off-by: Stefano Babic

ARM: mxs: Add OCOTP driver

2014-03-31T16:28:50+00:00

Add yet another OCOTP driver for this i.MX family. This time, it's a driver for
the OCOTP variant found in the i.MX23 and i.MX28. This version of OCOTP is too
different from the i.MX6 one that I could not use the mxc_ocotp.c driver without
making it into a big pile of #ifdef . This driver implements the regular fuse
command interface, but due to the IP blocks' limitation, we support only READ
and PROG functions.

Signed-off-by: Marek Vasut 
Cc: Stefano Babic

cros_ec: Implement I2C pass-through

2014-03-18T02:05:48+00:00

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 
Signed-off-by: Simon Glass

cros_ec: sandbox: Add Chrome OS EC emulation

2014-03-18T02:05:47+00:00

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 
Signed-off-by: Simon Glass

cros_ec: Correct comparison between signed and unsigned numbers

2014-03-18T02:05:47+00:00

Due to signed/unsigned comparison, '< sizeof(struct)' does not do the right
thing, since if ec_command() returns a -ve number we will consider this be
success.

Adjust all comparisons to avoid this problem.

This error was found with sandbox, which gives a segfault in this case. On
ARM we may instead silently fail.

We should also consider turning on -Wsign-compare to catch this sort of thing
in future.

Reviewed-by: Andrew Chew 
Reviewed-by: Simon Glass 
Reviewed-by: Vadim Bendebury 
Tested-by: Andrew Chew 
Signed-off-by: Simon Glass 
Signed-off-by: Jimmy Zhang

cros_ec: spi: Add support for EC protocol version 3

2014-03-18T02:05:47+00:00

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 
Signed-off-by: Randall Spangler 
Signed-off-by: Simon Glass

cros_ec: Add base support for protocol v3

2014-03-18T02:05:47+00:00

Protocol v2 was shipped with snow, link and spring. Protocol v3 is for
pit and is targetted at SPI operation.

Signed-off-by: Simon Glass

cros_ec: Clean up multiple EC protocol support

2014-03-18T02:05:47+00:00

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 
Signed-off-by: Randall Spangler 
Signed-off-by: Simon Glass

cros_ec: Sync up with latest Chrome OS EC version

2014-03-18T02:05:47+00:00

The EC messages have been expanded and some parts have been renamed.

Signed-off-by: Simon Glass

cros_ec: Move #ifdef to permit flash region access

2014-03-18T02:05:46+00:00

Flash region access is not tied to having commands, so adjust the #ifdef
to reflect this.

Signed-off-by: Simon Glass