This DT property allows marking flash partition that Linux should use as
a root device. It's useful for devices that don't use U-Boot and cmdline
parser for partitioning. It may be used with "fixed-partitions" or some
dynamic partitioning based on flash content.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit d33e49857e3ad76586ebe55334996b15cd45ca1b)
This is some hack on top of our old hack. Use separated patch for it so
it's easier to understand and actually possible to describe. We should
ideally get rid of this (and we actually did with kernels 5.15+).
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
(cherry picked from commit 6a64eb2664c13bc7d6800747066603c27fcad8e0)