Don't honor initrd load address ...

U-Boot doesn't honor the load address specified in an initrd. Barebox
shouldn't be more strict here. This unbreaks booting an uInitrd
generated by Debian's flash-kernel that uses 0 as entry address where
there is nothing on the i.MX53 that was used.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

bootm: Simplify initrd address handling ...

data.initrd_address = UIMAGE_SOME_ADDRESS;
	...
	if (-L was given to bootm)
		data.initrd_address = address_provided_to_-L;
	...
	if (initrd is provided as uInitrd && data.initrd_address == UIMAGE_SOME_ADDRESS)
		data.initrd_address = load_address_from_uInitrd;
	...
	if (data.initrd_address == UIMAGE_SOME_ADDRESS)
		data.initrd_address = UIMAGE_INVALID_ADDRESS;

can be simplified to:

	data.initrd_address = UIMAGE_INVALID_ADDRESS;
	...
	if (-L was given to bootm)
		data.initrd_address = address_provided_to_-L;
	...
	if (initrd is provided as uInitrd && data.initrd_address == UIMAGE_INVALID_ADDRESS)
		data.initrd_address = load_address_from_uInitrd;
	...

The only change introduced by this simplification is for cases where the
user passes -L UIMAGE_SOME_ADDRESS or -L UIMAGE_INVALID_ADDRESS to
bootm. (-L UIMAGE_SOME_ADDRESS is now used literally instead of ignored
before. -L UIMAGE_INVALID_ADDRESS used to skip getting the
initrd-address from the uInitrd, now the uInitrd address is honored.)

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: remove unused libfdt ...

Now that we are completely independent of libfdt remove the unused
code.

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

bootm: Pass unflattened devicetree to handlers ...

This makes it possible to modify the tree in the handlers.
This is necessary because the initrd addresses are only
known inside the handlers, but not to the generic bootm
code.

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

bootm: Use of_print_nodes instead of fdt_print ...

Now that we use the unflattened tree in bootm we can use of_print_nodes
instead of printing the flattened tree.

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

of: Pass barebox internal format devicetree to of_get_fixed_tree ...

With this every devicetree is first converted to the barebox internal
format before it's converted back to dtb again.

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

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

Conflicts:
	drivers/of/base.c

bootm: move printing of file locations outside verbose mode ...

The location of files that are booted is a precious information, so print
it by default and not only in verbose mode.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Michael Olbrich <m.olbrich@pengutronix.de>

of: make of_get_fixed_tree more universally usable ...

Currently the bootm code uses of_fix_tree to apply the fixups
to the devicetree given on the command line. This function assumes
that there is enough space for the fixups available. Also on ARM
we have to make sure the tree does not cross 1Mib boundaries.

This patch moves the space allocation and alignment ensurance
to of_get_fixed_tree and uses it in bootm. This is the first
step for making of_get_fixed_tree the single point of devicetree
handling in barebox.
of_get_fixed_tree now takes an argument of the input fdt. If it is
given, this one is used, otherwise an internal oftree is used which
will be created in subsequent patches.

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

filetype: Pass bufsize ...

Pass the buffer size to the file detection code. This makes sure we do not
read past the buffer. This is especially useful for ext filesystem detection
as the magic is at byte offset 1080. Also introduce a FILE_TYPE_SAFE_BUFSIZE
define which is set to the minimum bufsize the detection code needs to detect
all known filetypes.

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

bootm: Do not cross 1MiB sections for the devicetree ...

ARM Linux only maps a single 1MiB section for the devicetree. This has
a 1Mib alignment, so we are not allowed to cross such a boundary. Align
the devicetree to the next power of two so that this never happens.

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

bootm: Add a define for the additional devicetree size ...

The fixed devicetree may need more space than the original one.
We used to use 0x8000 here. Add a define for it to have the
space defined at a single place.

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

bootm: close open files ...

Signed-off-by: Vicente <vicencb@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Treewide: remove address of the Free Software Foundation ...

The FSF address has changed in the past. Instead of updating it
each time the address changes, just drop it completely treewide.

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

trivial: bootm: correct grammar in error message ...

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

bootm: do not load the initrd in the common code ...

This need to be handled by the arch bootm as the address can be invalid and
provided at arch level.

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

resource: store 'end' instead of 'size' in struct resource ...

Storing the size instead of the resource end in struct resource was
a mistake. 'size' ranges from 0 to UINT[32|64]_MAX + 1 which obviously
leads to problems. 'end' on the other hand will never exceed
UINT[32|64]_MAX. Also this way we can express a iomem region covering
the whole address space.

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

bootm: Add default images variables ...

It turns out useful to be able to configure bootm before its usage.
This allows us to overwrite bootm settings on an individual base.
This patch adds global variables to configure the kernel image, the
initrd image and the devicetree image. These values will be used
unless overwritten explicitely with command line switches.

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

bootm: fix initrd handling ...

bootm_initrd tests for data->initrd, but this never becomes true because
the settingof data->initrd is inside a if(bootm_initrd()). Fix this. Also,
do not support the initrd options when initrd is disabled.

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

Merge branch 'binfmt' of git://git.jcrosoft.org/barebox into next

bootm: Align oftree ...

Arm needs 64-Bit alignment of the oftree as mentioned in the documentation
Documentation/arm/Booting.

Other architectures may need a bigger alignment so align to 4K.

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

bootm: Fix check for ret-value ...

The intention of this code was to check the return value of fdt_open_into. Fix
this.

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

bootm: add uimage binfmt support ...

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

bootm: be more informative with oftrees ...

- print error message when the specified oftree cannot be opened
- move verbose info to top of function so that the information is
  printed before something else fails.

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

commands: remove struct command pointer from commands ...

This is unused in all commands and thus can be removed.

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

uimage: Fix error message ...

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

Merge branch 'work/uimage' into next ...

Conflicts:
	arch/ppc/lib/ppclinux.c
	commands/bootm.c
	include/boot.h

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

Merge branch 'pu/ppc-oftree' into next

ppc: switch to libfdt based oftree implementation ...

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

remove unused watchdog header ...

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