Merge branch 'for-next/rtc' ...

Conflicts:
	arch/mips/dts/jz4755.dtsi
	commands/Makefile

Merge branch 'for-next/metadata' ...

Conflicts:
	arch/arm/dts/Makefile
	common/Makefile
	lib/Makefile

Merge branch 'for-next/led'

Merge branch 'for-next/i2c'

Merge branch 'for-next/env'

Merge branch 'for-next/efi' ...

Conflicts:
	.gitignore
	Makefile
	drivers/serial/Makefile

Merge branch 'for-next/doc' ...

Conflicts:
	Makefile

Add support for metadata in barebox images ...

It's often useful to get some information about a barebox image
before starting or flashing it. This patch introduces barebox
Image MetaData (IMD). When enabled a barebox image will contain
a list of tags containing the desired information. We have tags
for:

- the barebox release (2014.07.0-00160-g035de50-dirty)
- the build timestamp (#741 Mon Jul 28 15:08:54 CEST 2014)
- the board model the image is intended for
- the device tree toplevel compatible property

Also there is an additional generic key-value store which stores
parameters for which no dedicated tag exists. In this patch it
is used for the memory size an image supports.

Since there is no fixed offset in a barebox image which can be
used for storing the information, the metadata is stored somewhere
in the image and found by iterating over the image. This works
for most image types, but obviously not for SoC images which are
encoded or encrypted in some way.

There is a 'imd' tool compiled from the same sources for barebox,
for the compile host and for the target, so the metadata information
is available whereever needed.

For device tree boards the model and of_compatible tags are automatically
generated.

Example output of the imd tool for a Phytec phyFLEX image:

build: #889 Wed Jul 30 16:08:54 CEST 2014
release: 2014.07.0-00167-g6b2070d-dirty
parameter: memsize=1024
of_compatible: phytec,imx6x-pbab01 phytec,imx6dl-pfla02 fsl,imx6dl
model: Phytec phyFLEX-i.MX6 Duallite Carrier-Board

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

move file helper functions to separate file ...

We have our file helper functions in several places. Move them
all to lib/libfile.c.
With this we no longer have file helpers in fs/fs.c which contains
the core fs functions and no functions in lib/libbb.c which are
not from busybox.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

trivial: Correct word spelling, s/miscelleanous/miscellaneous ...

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: add hwclock ...

The hwclock command allows to query or set the hardware clock (RTC).

Barebox' 'hwclock' command uses busybox' 'date' compatible
time format ccyymmddHHMM[.SS]:

  # /bin/busybox date -s 201407292005.41 ; /bin/date
  Tue Jul 29 20:05:41 MSK 2014
  Tue Jul 29 20:05:41 MSK 2014

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/i2c' into HEAD

commands: saveenv: Fix comment about directories in help text ...

envfs indeed handles directories, at least since 2007:

| commit 913691e
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date:   Tue Sep 25 12:58:52 2007 +0200
|
|     add directory handling for environment

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

saveenv: provide a zeroed/empty/ignore environment ...

If an external environment storage should be used in very rare and special cases,
the intentional behaviour should be to ignore the external environment and always
fall back to the built-in environment. By storing an empty "to be ignored" environment
into the external environment a confusing error message about invalid CRC sums will go
away and still the built-in environment is used.
With this new option we can force the intentional behaviour.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

envfs: change API to be able to forward special flags into the envfs superblock ...

In order to be able to mark an stored envfs image with special features
(intentional ignore for example), we now can feed forward these flags.
By forwarding a '0' for the flags nothing changes because the envfs superblock
was already allocated with xzalloc.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

saveenv: make clear how to use the command's parameters ...

Both parameters can be omitted and DIRECTORY can be omitted, but the
DIRECTORY parameter requires the ENVFS parameter as well.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: trigger: check trigger disable return code too ...

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: revamp dfu's help text ...

... so that it looks a bit nicer in the HTML generated docs.

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: lowercase help short texts ...

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Documentation: remove "all all" in help's help text. ...

Signed-off-by: Holger Schurig <holgerschurig@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

tftp: more helpful help text ...

It took me a while to figure out syntax of tftp command, document that
server address is taken from environment.

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

serial: Add EFI stdio driver ...

This adds a driver which uses the EFI stdin/stdout interfaces to
implement a barebox console. Keyboard input should be fairly complete,
but not all vt100 needed by barebox work properly. The clear-to-eol
escape is missing causing garbled output in the editor.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: i2c: add message if write is not successful ...

Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: i2c: simplify i2c wide access logic ...

Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: i2c: verbose option doesn't need argument ...

Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

oftree command: Use size_t for size ...

read_file takes a size_t argument as size, so use this type for the
size variable.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Fix crc32 compile error ...

This fixes a compile error introduced with:

| commit 37f47a2
| Author: Robert P. J. Day <rpjday@crashcourse.ca>
| Date:   Mon Jul 7 05:36:33 2014 -0400
|
|     crc32: Proper name of command is "crc32".
|
|     Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
|     Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Do not use macros in command help ...

The help texts are parsed by sphinx which cannot handle macros, so
replace them with their values.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

crc32: Proper name of command is "crc32". ...

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

at91mux: Fix both help info and Kconfig info. ...

Correct options are, in fact, -p and -b.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>