This adapts all files that were identifed by licensecheck
(https://salsa.debian.org/build-common-team/licensecheck.git) as
licensed under the GPL.

The copyright situation isn't trivially clear for these files, so I didn't
replace the copyright statement here with machine-parseable tags.

While touching these files also do some minor comment reformatting to
get some uniform layout.

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

Most callers of arm_setup_stack substract a fixed offset of 8, 12 or 16
bytes from the stack top. This is unnecessary as on ARM we have a stack
that decrements before storing values. Substracting this offset probably
goes back to the U-Boot version we forked from. Stop this now.

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

When we are linked at 0x0 and running at 0x01000000 then
get_runtime_offset() should return 0x01000000 and not 0xff000000. This
makes get_runtime_offset() more consistent and better understandable.

This was tested on a Freescale i.MX53 Quickstart board. Additionally
relocate_to_adr() was tested since that is normally not called.

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

Most files including imx6-mmdc.h do not actually use anything from
it. Clean this up.

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

Move all of the common clock ungating code in early UART
initialization into a dedicated subroutine that can be shared by all
of the users.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

NOTE: Boards 'karo-tx25' and 'tqma53' can benefit from this
refactoring as well, but they were not converted because of the lack
of i.MX25 or i.MX53 based hardware to test on.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This file originates in Linux.  Linux has it under include/linux/
directory since commit dccd2304cc90.
Let's move it to the same place as well in barebox.

This commit was generated by the following commands:

  find -name '*.[chS]' | xargs sed -i -e 's:<sizes.h>:<linux/sizes.h>:'
  git mv include/sizes.h include/linux/

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

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

Mostly to make it clear that boarddata needs to be
something we can dereference.

As this is a pretty invasive change, use the opportunity
to make the signature 64bit safe.

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

The VAR-SOM-MX6 is a System on module from Variscite, see:

http://www.variscite.com/products/system-on-module-som/cortex-a9/var-som-mx6-cpu-freescale-imx6

This adds support for this module on the VAR-MX6CustomBoard baseboard.

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