commands: loady: fix bug with netconsole ...

Netconsole doesn't have a baudrate. Loady supposes a console has one,
and tries to compute the console's baudrate variable value, regardless
of its existence.

This triggers a NULL pointer dereference on netconsole. If attempting
loady on a netconsole is a bit useless, barebox should not panic. Fix
this by checking the variable exists before reading its value.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

command: memset: Fix argument order in help text ...

memset takes ADDR DATA COUNT just like the C function, not
ADDR COUNT DATA.

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

saveenv: Fix saving to specified file ...

Since e805b7d saveenv: provide a zeroed/empty/ignore environment
barebox no longer honors the file argument when the directory
argument is also givin. Fix this.

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

commands: usb: drop help for force rescan option ...

Signed-off-by: Wjatscheslaw Stoljarski <wjatscheslaw.stoljarski@kiwigrid.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: of_dump: Fix return value ...

In an error case the return value is set nicely
but 0 is always beeing returned.

Signed-off-by: Teresa Gámez <t.gamez@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: of_dump switch to get fixed devictree ...

Add a switch to get the devicetree processed by the registered fixups.
This is also whats the kernel gets.

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ubi: add setting devnum to ubiattach ...

Sometimes we need to have a defined devicenumber for the ubi partitions.
This patch adds the option to ubiattach.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/usb-host' ...

Conflicts:
	drivers/usb/core/Makefile

Merge branch 'for-next/usb-gadget' ...

Conflicts:
	commands/Makefile
	common/Kconfig
	common/Makefile
	drivers/usb/gadget/dfu.c

Merge branch 'for-next/usb'

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>

USB: gadget: Add a multi function gadget ...

Similar to the Kernel multi function this gadget driver is used
for creating a USB device with multiple functions. This is
created and removed with the newly created 'usbgadget' command.
Based on the options it creates combinations of DFU, fastboot
and serial USB functions.

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>