loadaddr=0x81000000
fdt_high=0x8fffffff
initrd_high=0xffffffff
-sd_boot=ext4load mmc 0:1 $loadaddr fitImage;bootm $loadaddr
+sd_boot=ext4load mmc 0:1 ${loadaddr} fitImage;bootm ${loadaddr}
bootargs=root=/dev/mmcblk0p2 rw rootwait rootfstype=squashfs,f2fs noinitrd earlycon=uart8250,mmio,0x21c0500 console=ttyS0,115200
bootcmd=echo starting openwrt ...;run sd_boot
bootdelay=3