" ${append_bootargs}\0" \
"cpu_clk=" xstr(CONFIG_SYS_MPU_CLK) "\0" \
"fdtaddr=81000000\0" \
+ "fdtsave=nand erase.part dtb;nand write ${fdtaddr} dtb ${fdtsize}\0" \
"mtdids=" MTDIDS_DEFAULT "\0" \
"mtdparts=" MTDPARTS_DEFAULT "\0" \
"otg_mode=device\0" \