Add pre-bootloader (pbl) image support ...

This allows for creating a pre-bootloader binary for
 - nand boot
 - mmc boot
 - compressed image

The pbl will be incharge of the lowlevel init if needed.
The barebox will skip it.

Import string functions from linux 3.4 (arch/arm/boot/compressed/string.c) and
implement a dummy panic.

For now on introduce dummy zbarebox* targets and c code that will contain later
the decompressor. This only implemeted on ARM.

This patch is based on Sascha Hauer <s.hauer@pengutronix.de>
Add compressed image support patch

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

kbuild: add pre-bootloader (pbl) target ...

This will allow to link compiled object to the built-in-pbl.o across the source
tree that will be finally link to the pbl.

Now we compile the source %.c in pbl-%.o and provide -D__PBL__
so we can known in the source when it's compile for barebox or the pbl.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Makefile.clean: include Makefiles again ...

This makes it possible to add architecure specific clean
targets again.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

eukrea_cpuimx35: fix USB host ...

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

serial Samsung: add the S3C64xx requirements ...

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

Merge branch 'for-next/ubi'

Merge branch 'for-next/tqma53'

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

Conflicts:
	arch/arm/Makefile
	arch/arm/mach-samsung/Makefile
	arch/arm/mach-samsung/include/mach/s5pcxx-iomap.h

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

Conflicts:
	arch/arm/Makefile

Merge branch 'for-next/reset-source'

Merge branch 'for-next/randconfig'

Merge branch 'for-next/pcm038'

Merge branch 'for-next/onfi'

Merge branch 'for-next/omap'

Merge branch 'for-next/mkublheader'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/m25p80'

Merge branch 'for-next/imx-misc'

Merge branch 'for-next/imx-keypad'

Merge branch 'for-next/i2c'

Merge branch 'for-next/friendlyarm'

Merge branch 'for-next/depend'

Merge branch 'for-next/defenv-2'

Merge branch 'for-next/compressed-prepare'

Merge branch 'for-next/cfa-10036'

Release v2012.08.0 ...

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

mem md: make md -s /dev/something work again ...

Since

|commit d22b85a
|Author: Sascha Hauer <s.hauer@pengutronix.de>
|Date:   Wed Jul 4 23:41:13 2012 +0200
|
|    mem md: bail out without arguments
|
|    Without arguments the 'md' command defaults to show address 0 which
|    likely results in a NULL pointer exception, so only three keystrokes
|    are necessary to crash barebox. Show usage instead if 'md' is invoked
|    without arguments, so that it at least requires an address to be given
|    to crash barebox. This increases the stability of barebox by 66%. Hurray!

barebox does not crash any longer when a plain 'md' without additional arguments
is exectuted. However, doing a 'md -s /dev/nor0' was a standard usecase which now
does not work anymore.

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

ubi: align ubi writes to LEB size ...

Otherwise incomplete LEBs are not written.

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

ubi: cdev->write has to return the bytes read, not 0 ...

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