board/sifive/hifive-unleashed/boot.cmd

setenv bootargs earlycon=sbi root=/dev/mmcblk0p3 rootwait
load mmc 0:3 ${kernel_addr_r} boot/Image
load mmc 0:3 ${fdt_addr_r} boot/hifive-unleashed-a00.dtb
booti ${kernel_addr_r} - ${fdt_addr_r}