kbuild: add ./Kbuild file to fix "make clean" ...

"make clean/mrproper/distclean" has not been working correctly.

When "make clean" is run, Kbuild descends into the directories
that are listed in "clean-dirs" variable, which includes $(srctree).

It intends descending into "./Kbuild", not "./Makefile".
(Note "Kbuild" takes precedence over "Makefile" in each directory.)

If Kbuild descends into "./Makefile", Kconfig is invoked via
"make silentoldconfig", which is not our intention.

Let's add "Kbuild" file at the top directory like Linux.

Update TODO list too.

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

move boards to arch/<architecure>/boards ...

this will allow each arch to handle the boards more simply and depending on
there need

the env var BOARD will refer to the current board dirent

for sandbox as we have only one board the board dirent is arch/sandbox/board

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

trivial: fix typos concerning "hierarchy" ...

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

rename U-Boot-v2 project to barebox ...

This has been done with the following script:

find -path ./.git -prune -o -type f -print0 | xargs -0 -r sed -i \
	-e 's/u2boot/barebox/g' \
	-e 's/U2Boot/barebox/g' \
	-e 's/U-boot V2/barebox/g' \
	-e 's/u-boot v2/barebox/g' \
	-e 's/U-Boot V2/barebox/g' \
	-e 's/U-Boot-v2/barebox/g' \
	-e 's/U_BOOT/BAREBOX/g' \
	-e 's/UBOOT/BAREBOX/g' \
	-e 's/uboot/barebox/g' \
	-e 's/u-boot/barebox/g' \
	-e 's/u_boot/barebox/g' \
	-e 's/U-Boot/barebox/g' \
	-e 's/U-boot/barebox/g' \
	-e 's/U-BOOT/barebox/g'

find -path ./.git -prune -o \( -name "*u-boot*" -o -name "*uboot*" -o -name "*u_boot*" \) -print0 | \
	xargs -0 -r rename 's/u[-_]?boot/barebox/'

It needs some manual fixup following in the next patch

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

remove point from TODO file ...

The TODO file claimed that it is a bug that a = 10 does not work. As our
interpreter is a shell and such a thing does not work in shells, this
is not a bug but intention

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

update TODO file ...

Many things are already done, some new things came up.

Signed-off-by: Carsten Schlote <schlote@vahanus.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

add todo topic ...

Adds a todo issue.

Signed-off-by: Robert Schwebel <r.schwebel@pengutronix.de>

update TODO ...

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>

expanding the TODO list ...

Signed-off-by: Juergen Beisert <j.beisert@pengutronix.de>

Using correct board names all over the place ...

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>

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