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>

igep00x0: merge igep0020 and igep0030 defconfigs to igep00x0_defconfig

Update igep00x0 code with the following features:
- Add board and revision detection for the boards:
- IGEP0020-RF
- IGEP0020-RC
- IGEP0030-RG
- IGEP0030-RE
- Merge IGEP0020 and IGEP0030 mux tables
- Add suport to use GPIO_126, GPIO_127 and GPIO_129
- board_name and board_rev environment variables display board and
revision informations
- Move dtb name selection from code to boot script

Signed-off-by: Pau Pajuelo <ppajuel@gmail.com>
Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Tested-by: Pau Pajuelo <ppajuel@gmail.com>

igep00x0: remove useless setup_net_chip declaration

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

igep00x0: move sysinfo into C file

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

OMAP3: igep00x0: Fix boot hang and add support for status LED.

Use the STATUS_LED APIs for indicating a boot progress instead of
show_boot_progress.

This patch also fixes a problem introduced with commit b3f4ca1135 (dm: omap3:
Move to driver model for GPIO and serial). After that commit the board doesn't
boot. Looks like the problem is the gpio_request call inside the function
show_boot_progress.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>

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>

OMAP3: igep00x0: Add new IGEP COM PROTON.

The IGEP COM PROTON is a new ultra compact module design with an
on-board ethernet controller.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>

OMAP3: igep00x0: use official board names.

This trivial patch only changes current boards names for the official
names.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>

OMAP3: igep00x0: fix a build warning on IGEP boards

commit b689cd5 OMAP3: use a single board file for IGEP devices

introduced the following build warning:

igep00x0.h:168:24: warning: backslash-newline at end of file [enabled
by default]

This patch fixes the issue.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>

OMAP3: igep00x0: add boot status GPIO LED

This patch adds an GPIO LED boot status for IGEP boards.

The GPIO LED used is the red LED0 while the Linux kernel
uses the green LED0 as the boot status.

By using different GPIO LEDs, the user can know in which
step of the boot process the board currently is.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>

OMAP3: use a single board file for IGEP devices

Even when the IGEPv2 board and the IGEP Computer-on-Module
are different from a form factor point of view, they are
very similar in the fact that share many components and how
they are wired.

So, it is possible (and better) to have a single board file
for both devices and just use the CONFIG_MACH_TYPE to make
a differentiation between each board when needed.

This change avoids code duplication by removing 298 lines of
code and makes future maintenance easier.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>