The patch below failed to define the variable, so define it
to make it consistent with M53EVK.
commit
a428ac914b2b6db851c1feac98622f2d9844db45
Author: Lothar Rubusch <lothar@denx.de>
Date: Thu Jun 26 11:01:29 2014 +0200
ARM: m28evk: Update default environment
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
#define CONFIG_EXTRA_ENV_SETTINGS \
"consdev=ttyAMA0\0" \
"baudrate=115200\0" \
+ "bootscript=boot.scr\0" \
"bootdev=/dev/mmcblk0p2\0" \
"rootdev=/dev/mmcblk0p3\0" \
"netdev=eth0\0" \