boot> help Trying to load help... boot -- boots kernel bootp [load addr] - load memory and jump config [options] - configures boot loader. partition -- show flash partition list partition erase -- ... gx_otp tread --read gx otp gx_otp read --read gx otp gx_otp twrite --use boot tool write gx otp gx_otp write --use boot tool write gx otp cmdline -- operate 'show' to show cmdline. serialdown [yaffs|wholebin]-- download according serial. if you use boot tool, boot command: serialdown serialdump -- download according serial. if you use boot tool, boot command: serialdump gdbdown [wholebin] [memory addr] -- download according jtag. partition download -- download image and write to partition info - shows information on specified class flash [args...] - flash operation flash switch : type 0:spinor 1:spinand 2:normal nand 3:extend spinor flash writeb : writes one byte of data into specified address flash read -- read data from flash to memory flash write -- writes block of data into specified address flash eraseall -- erases all serial flash memory flash erase | -- erases one or more sectors of serial flash memory sflash_otp -- get the lock status or region or erase the sflash otp sflash_otp read -- read data from sflash otp sflash_otp write -- use boot tool write sflash otp net [args...] - net operation net configip -- network stb ipaddr configuration net configport -- network tftpport configuration net configshow -- shows current network configuration net arp net ping net tftp usbdown [yaffs|wholebin] -- download according usb. boot> boot> cmdline show cmdline:mem=24M videomem=33M fbmem=7M console=ttyS0,115200 init=/init boot>