state: remove unused arguments from state_new_from_node() ...

state_new_from_node() has arguments describing the backend path. These
are never used in barebox, the backend path is always derived from the
device nodes backend description. Remove these arguments.

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

usb: gadget: fastboot: Add external command execution support ...

Custom projects may need vendor specific expansions to the fastboot
command execution. Allow these to be implemented without messing in
the fastboot code directly.
We have a hook for all commands and also one for the "flash" command.
Each hook can decide if the generic command parser is executed
afterwards (return value FASTBOOT_CMD_FALLTHROUGH) or if the generic
parser shall be skipped (return value 0 or negative error code).

This allows board code to implement vendor specific "oem" commands
or to handle the downloaded image in a special way (i.e. do signature
checks on them)

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

ubiformat: Allow to ubiformat with a buffer given ...

So far ubiformat can only handle files. Make it possible to pass
a buffer into ubiformat.

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

Merge branch 'for-next/zstd'

Merge branch 'for-next/tftp-workaround'

Merge branch 'for-next/ratp'

Merge branch 'for-next/of'

Merge branch 'for-next/misc'

Merge branch 'for-next/constify'

Merge branch 'for-next/FIT'

FIT: Allow to open buffer as FIT image ...

This adds fit_open_buf() which can open a buffer as FIT image.

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

FIT: store device_nodes in fit_handle ...

We need the /images and /configurations nodes more than once,
so store them in the fit_handle rather than searching for them
each time again.

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

FIT: Let user specify the configuration to use ...

The images in FIT images can be opened in two different ways. They
can be either opened directly based on their names in the images/
node or as part of a configuration based on their names in the
corresponding /configuration/ node.

So far we only supported the latter. To prepare supporting the former
we return a cookie belonging to the configuration from
fit_open_configuration() which we use in fit_open_image() to refer
to the desired configuration.

While at it document fit_open_configuration().

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

FIT: Do not pre-open images ...

Only do what fit_open_configuration() suggests: open the configuration,
but not the images in it.

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

bootm: FIT: do not depend on FIT pre-opened images ...

When calling fit_open_configuration the FIT code already opens
the images "kernel", "ramdisk" and "dtb". This does not fit well
into the FIT code, so make the bootm code independent of these
pre-opened images so that we can drop the opening from the FIT
code in the next step.

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

of: Add function to find the same node in another tree ...

For our device tree fixups we have to find a node corresponding to
another node in another device tree. We used to use the full name
to match the nodes, but this falls apart when nodes get renamed
or for example a new bus hierarchy is introduced. To make this
more robust we create reproducible names from device nodes which
mostly depend on the address in MMIO space, the reg property and
as a last resort the name of the device node.

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

lib: Add zstd decompression module ...

Based on kernel commit 73f3d1b48f50 ("lib: Add zstd modules").

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lib: Add xxhash module ...

Based on kernel commit 5d2405227a9e ("lib: Add xxhash module").

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

include linux/compiler.h in linux/unaligned/generic.h ...

Without this include, the __force macro used in this header may be
undefined.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: add support loop mount offset ...

When loop mounting, allow to specify an offset into the file, similarly
to the losetup offset option. Multiplicative suffixes are supported.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

filetype: Add type detection at an offset ...

Add file_name_detect_type_offset to allow file system detection for loop
mounts at an offset.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/parseopt: Add parseopt_llu_suffix ...

Add an option parser using strtoull_suffix that can be used to
parse a loop mount offset option.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

reset: add missing stub for reset_control_get ...

Fixes: 45b95b50cd0b (reset: add reset controller framework)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

of: fdt: add of_unflatten_dtb_const ...

This adds a variant of of_unflatten_dtb() which uses the property data
directly from the input tree rather than copying it. This is mainly
useful for a single user: FIT images.

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

of: Allow for const properties ...

This adds support for const properties. We add a const void *value_const
to struct property which will not be modified. The value of a property
should no longer be used directly, but with the of_property_get_value()
accessor which picks the right value.
With this we can unflatten dtbs and use the property values directly
from the dtb instead of copying them. This is useful for device trees
which (ab)use properties to store huge data files, aka FIT images.
To create a property whose value is not copied but used from the
original input data we introduce of_new_property_const().

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

libfile: Make write_file buffer const ...

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

bbu: Make pointer to image const ...

Make pointer to image in bbu data const so that we can put
const pointers into that.

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

imd: Make all pointers into image const ...

The IMD code should be readonly and never modify any pointers. Make
all pointers const so that const pointers can be passed in to IMD.

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

ratp: remove unused list pointer from ratp_bb_pkt ...

This struct type is used in the RATP FS implementation, but was never
used as a list element anywhere.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ratp: move barebox-specific command to ratp_bb.h ...

The ratp_run_command() is really an implementation detail of the
barebox ratp 'command' operation support. Move it to the barebox
specific header and rename it with the correct prefix.

Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>