1 Rockusb (Rockchip USB protocol) 2 ===================================================== 3 4 Overview 5 -------- 6 7 Rockusb protocol is widely used by Rockchip SoC based devices. It can 8 read/write info, image to/from devices. This document briefly describes how to 9 use Rockusb for upgrading firmware (e.g. kernel, u-boot, rootfs, etc.). 10 11 Tools 12 -------- 13 There are many tools can support Rockusb protocol. rkdeveloptool 14 (https://github.com/rockchip-linux/rkdeveloptool) is open source, 15 It is maintained by Rockchip. People don't want to build from source 16 can download from here 17 (https://github.com/rockchip-linux/rkbin/blob/master/tools/rkdeveloptool) 18 19 Usage 20 -------- 21 The Usage of Rockusb command is: 22 23 rockusb <USB_controller> <devtype> <dev[:part]> 24 25 e.g. rockusb 0 mmc 0 26 27 On your U-Boot console, type this command to enter rockusb mode. 28 On your host PC. use lsusb command. you should see a usb device 29 using 0x2207 as its USB verdor id. 30 31 for more detail about the rkdeveloptool. please read the usage. 32 33 rkdeveloptool -h 34 35 use rkdeveloptool wl command to write lba. BeginSec is the lba on device 36 you want to write. 37 38 sudo rkdeveloptool wl <BeginSec> <File> 39 40 to flash U-Boot image use below command. U-Boot binary is made by mkimage. 41 see doc/README.rockchip for more detail about how to get U-Boot binary. 42 43 sudo rkdeveloptool wl 64 <U-Boot binary> 44 45 There are plenty of Rockusb command. but wl(write lba) and 46 rd(reboot) command. These two command can let people flash 47 image to device. 48 49 To do 50 ----- 51 * Fully support Rockusb protocol 52
