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>

fix format specifiers ...

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

don't cast negative error codes to unsigned size_t ...

The cast prevents us from doing proper error checking.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

uimage: fix: fill size when no compression is used ...

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

uimage: fix: always support multi image support ...

drop ifdef CONFIG_UIMAGE_MULTI as the Kconfig option is not present anyway

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

treewide: fix format specifiers ...

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

Merge branch 'for-next/tftp'

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>

uimage: fix misunderstanding in common/uimage.c ...

The option of reading the file at once was discarded because
the option of increasing the buffer size provided almost the
same benefit.

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

uimage: improve transfer speed ...

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

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

Conflicts:
	commands/Makefile

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

uimage: Fix deleting of temporary file ...

the uImage support may generate a temporary file which ought to be deleted
after usage. Due to the wrong filename this never happened. Fix this.

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

UIMAGE: improve transfer speed ...

Signed-off-by: Vicente Bergas <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>

uimage_laod: fix ramdisk support ...

ramdisk U-Boot expect to ignore the compression type

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

uimage_sdram_flush: fix resource start ...

The start is the start of the previous resource nor the size of it.

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>

uimage/file_to_sdram: fix resource allocation ...

file_to_sdram is used to load an initrd. The resource size is
then used to pass the initrd size to Linux. This means that
the resource size must exactly match the initrd size. Currently
this is not the case since we request the sdram region in chunks
of 8 Kbytes. Fix this by adjusting the resource size when the file
is loaded.

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

make uimages work on tftpfs ...

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

reimplement uImage code ...

Provide a new API for accessing uImages which makes it easy
for commands to open images, verify them, load to (free) sdram
regions and show information about uImages.

- We now do not load the image to malloced space anymore.
- The data in the header is now stored in cpu native endianess
  after uimage_open which makes it easy to access the header data.
- uImage can be loaded to dynamically allocated sdram regions.

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