UNISOC flash tool.
-h show this message.
-t <type> interface type.
default: UART
-d <dev> device name.
default: /dev/ttyUSB0
-f <file> image file name.
-a <address> flash address.
uwpflash -t UART -d /dev/ttyUSB0 -f kernel.bin -a 0x2000000