Thanks. I build a patched image and use the friendly core eflasher image to install openwrt on emmc. Instructions are on the R2C wiki.
The only change when I made it was in the LED settings.
config led 'led_wan'
option name 'WAN'
option sysfs 'nanopi-r2s:green:wan'
option trigger 'netdev'
option dev 'eth0'
list mode 'link'
list mode 'tx'
list mode 'rx'
config led 'led_lan'
option name 'LAN'
option sysfs 'nanopi-r2s:green:lan'
option trigger 'netdev'
option dev 'eth1'
list mode 'link'
list mode 'tx'
list mode 'rx'