LICENSES: adopt Linux-like LICENSES directory structure ...

At the moment
  grep -r --exclude-dir=.git 'SPDX-License-Identifier:' | \
    grep -v 'GPL-2.0'

shows me 39 non-dually-licensed source code files (SoCFPGA) that have a
BSD-3-Clause license _identifier_.
There seems to be no barebox BSD-3-Clause license  _text_ however,
which runs afoul of the first clause of the license.

To account for this and future contributions which are licensed under
non-GPL-2.0-but-compatible licenses, create a new LICENSES directory
like the one Linux has, where licenses are located.

This also removes the jumptable exception inherited from U-Boot:

  > On 11/2/19 09:00, Sascha Hauer wrote:
  >> I don't think we need this [exception]. barebox doesn't have
  >> (and never had since the fork from U-Boot) these standalone
  >> applications. There is no jumptable in barebox. What we do have
  >> is modules support, but these are not covered by this text.

The LICENSES/exceptions directory is therefore empty as well as
the LICENSES/other directory, which might house new licenses in future.
They are added along this commit however, because upstream
checkpatch.pl introduced with a later commit depends on their
existence.

Fixes: a3ffa97f4 ("rename U-Boot-v2 project to barebox")
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

commands: nandtest: provide readonly test ...

Test will read the device and report the corrected or failed ECC states.

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

watchdog: fix WATCHDOG_POLLER menuconfig ...

make it properly represented by menuconfig

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

defaultenv: Fix dependencies ...

The defaultenv should be rebuilt once a file in it has changed.
the genenv script always generates the environment file to a temporary
file. Only if it has changed to the last target file the temporary file
is moved over the target file. This means we always have to call genenv,
thus replace "if_changed" with "cmd".
With this dependencies are correctly tracked. New or changed files
result in new image builds whereas unchanged environments do not
unnecessarily result in new images.

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

Documentation: imx8mq-evk: fix firmware path ...

Since commit: "da985aac8 firmware: drop the imx subdir" the firmware is
not longer placed in imx subdir. So the subdir can be removed from the
documentation.

Signed-off-by: Christian Hemp <christian.hemp@posteo.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

usb: imx: Do not disable VBUS on ehci_register()'s success ...

Original code was written to exit early on ehci_register()'s
success. As a part of e3eb0c729b, however, it was modified to to early
exit on failure instead. This resulted in VBUS being erroneously
disabled after EHCI controller was added, thus breaking USB on some
i.MX boards (confirmed on ZII's RDU2).

Fixes: e3eb0c729b ("usb: host: ehci: add ehci_unregister()")
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

doc: bootchooser: add retry handling to algorithm description ...

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

doc: bootchooser: add details about bootchooser.reset_attempts handling ...

For understanding and correctly using the algorith it is useful to know
when the values are evaluated.

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

doc: bootchooser: be more explicit about when the bootchooser terminates ...

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

doc: bootchooser: note how to actually start the bootchooser ...

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

doc: bootchooser: be more explicit about attempts reset on successful boot ...

From the current description of how the bootchooser algorithm works it
is not that easy to figure out how to actually use it in a full (redundancy)
boot chain.

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

doc: bootchooser: be more explicit what bootchooser.state_prefix is for ...

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

doc: bootchooser: explicitly note configuration vs. storage backend ...

It is quite confusing for some users sometimes where to set what.

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

doc: bootchooser: fix typos etc. ...

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

kbuild: Add missing semicolon ...

Fixes: 4fafb35d925e5 ("kbuild: cherry-pick changes from Linux v5.0-rc3")

The change cherry-picked from the Kernel commit 7d0ea2524202 ("kbuild: use
'else ifeq' for checksrc to improve readability") also removed the
trailing semicolons from the cmd_*checksrc lines. These were removed in
kernel commit e5d289100d ("kbuild: remove trailing semicolon from cmd_*
passed to if_changed_rule"), but seems the barebox Kbuild version is not
yet ready for this change. Without the semicolons a make C=1 build fails
with:

No such file: echo

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

Merge branch 'for-next/rpi'

Merge branch 'for-next/pci'

Merge branch 'for-next/nfs'

Merge branch 'for-next/mmc-esdhc'

Merge branch 'for-next/misc'

Merge branch 'for-next/mips'

Merge branch 'for-next/lseek'

Merge branch 'for-next/kbuild'

Merge branch 'for-next/imx'

Merge branch 'for-next/e1000'

Merge branch 'for-next/dts'

Merge branch 'for-next/digest'

Merge branch 'for-next/arm-mmu'

Merge branch 'for-next/arm'

Release v2019.02.0 ...

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