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>

Fix a typo in help output (awailable -> available).
Tidy the grammar - not the board connects to a port, we do.

While at it, be consistent in upper-casing the comments.

Fixes: eee4835d ("tools: Add Marvell recovery image download script")
Cc: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

minicom doesn't inherit the baudrate from stty but uses its own
defaults, such as for example 57600, whereas we expect 115200 here.
Explicitly tell minicom which baudrate to use.

Fixes: eee4835d ("tools: Add Marvell recovery image download script")
Cc: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Konstantin Porotchkin <kostap@marvell.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

Introduce the recovery image download script for usage with
Marvell Armada SoC families (excepting 37xx family).
Since Marvell BootROM uses a sliding window in UART buffer
for detecting escape sequence during the boot, it's easier
to interrupt the normal boot flow by sending a long stream
of chained escape sequences to the serial port instead of
periodically sending a single escape sequence as it is done
by kwboot utility.
Additional benefit of using this script is the ability to
adjust the escape sequence stream length withoiut need for
compilation.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>