1). Modify tftp to tftpboot
E.g. Line 263
# tftp 0x3000000 uImage-xilinx-zynq.bin
# tftp 0x2a00000 uImage-zynq-<Board Name>.dtb
2). Modify xusbps-otg.0 to zynq-otg.0
E.g. Line306
# cd /sys/devices/amba.0/e0002000.ps7-usb/xusbps-otg.0/inputs
# echo 1 > a_bus_req
3). Add steps to read kernel and dtb from QSPI
E.g.
# sf read 0x2a00000 0x1600000 0x100000 --> For dtb
# sf read 0x3000000 0x1100000 0x500000 --> For kernel
