setenv macaddr 42 6A C3 80 24 65

setenv console tty1

setenv stdout serial,vga

setenv stderr serial,vga

#setenv scriptaddr 0x00500000

#setenv kernel_addr_r 0x02080000

#setenv fdt_addr_r 0x01f00000

setenv devtype mmc

setenv devnum 1

part uuid ${devtype} ${devnum}:5 uuid

setenv bootargs earlyprintk earlycon=uart8250,mmio32,0xff1a0000 swiotlb=1 coherent_pool=1m net.ifnames=0 biosdevname=0 console=ttyS2,1500000n8 console=tty1 root=PARTUUID=${uuid} rw rootfstype=ext4 rootwait

if ext2load ${devtype} ${devnum}:4 ${kernel_addr_r} Image; then

if ext2load ${devtype} ${devnum}:4 ${fdt_addr_r} rockchip/rk3399-rock-pi-4.dtb; then

fdt addr ${fdt_addr_r}

fdt resize 65536

fdt set /ethernet@fe300000 local-mac-address "[${macaddr}]"

booti ${kernel_addr_r} - ${fdt_addr_r}

fi;