tree b6f9f5a8f84515a7639e6a31762746468d81e3e1
parent 5d94158aa9af94542a2bb35f6aaa8a2d786fc6c2
author Frank Wunderlich <frank-w@public-files.de> 1547574546 +0100
committer Tom Rini <trini@konsulko.com> 1547821564 -0500

adding saveenv-command for bananapi r2

bananapi r2 can be booted from sd-card and emmc
saving the environment have to choose the storage
from which the device has booted

also the offset is set to 1MB to make sure env is written
to block "user data area" between uboot and first partition

https://www.fw-web.de/dokuwiki/lib/exe/fetch.php?cache=&media=bpi-r2:boot-structure.png

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>