tree 7498d1ea39b76773fef1b6ae35b0551c3c83c751
parent 0bc20857eb3557ec5e08bb78e19e730a31b2535e
author Martyn Welch <martyn.welch@collabora.co.uk> 1541507033 +0000
committer Tom Rini <trini@konsulko.com> 1542405121 -0500

Ability to modify distro boot filename

Add in the ability to modify the distro boot filename. Whilst not
immediately useful in normal usage, it allows an alternative
configuration to be provided when other u-boot functionality is used, such
as bootcount limit, to fallback to an alternative boot configuration. In
this case we can follow the same boot path as for normal boot, just
using an alternatively named configuration file.

For example, by providing the following `altbootcmd` when bootcount is in
use:

altbootcmd=setenv boot_extlinx_conf extlinux-rollback.conf; \
	run distro_bootcmd

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>