SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

Coding Style cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>

Add GPL-2.0+ SPDX-License-Identifier to source files

Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>

arm, davinci: add cam_enc_4xx support

- DM368 SOC
- booting with spl not with UBL from TI
- before loading u-boot from NAND into RAM, test
the RAM with the post memory test. If error
is found, switch all LEDs on and halt system.
- SPI Flash
Dataflash Typ: M25PE80
- Ethernet DM9161BI
- MMC
- USB

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Sandeep Paulraj <s-paulraj@ti.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

ublimage: NAND block size isn't set at build-time

mkimage's ublimage support can't depend of build-time board configs;
instead, this should be set in ublimage.cfg. Since currently no configs
in u-boot override the NAND block size, hardcode it as such in
ublimage.h to fix a build failure with "make tools":
gcc [...] -o ublimage.o ublimage.c -c
In file included from ublimage.c:37:0:
ublimage.h:31:20: fatal error: config.h: No such file or directory

Cc: Heiko Schocher <hs@denx.de>
Cc: patches@linaro.org
Signed-off-by: Loïc Minier <loic.minier@linaro.org>
Acked-by: Heiko Schocher <hs@denx.de>

mkimage: add UBL header support for booting davinci cpus

creating an u-boot.ubl file, which contains the UBL Header
needed for booting from NAND with the RBL from TI. For more
information read doc/README.ublimage.

Signed-off-by: Heiko Schocher <hs@denx.de>