| Rockusb (Rockchip USB protocol) |
| ===================================================== |
| |
| Overview |
| -------- |
| |
| Rockusb protocol is widely used by Rockchip SoC based devices. It can |
| read/write info, image to/from devices. This document briefly describes how to |
| use Rockusb for upgrading firmware (e.g. kernel, u-boot, rootfs, etc.). |
| |
| Tools |
| -------- |
| There are many tools can support Rockusb protocol. rkdeveloptool |
| (https://github.com/rockchip-linux/rkdeveloptool) is open source, |
| It is maintained by Rockchip. People don't want to build from source |
| can download from here |
| (https://github.com/rockchip-linux/rkbin/blob/master/tools/rkdeveloptool) |
| |
| Usage |
| -------- |
| The Usage of Rockusb command is: |
| |
| rockusb <USB_controller> <devtype> <dev[:part]> |
| |
| e.g. rockusb 0 mmc 0 |
| |
| On your U-Boot console, type this command to enter rockusb mode. |
| On your host PC. use lsusb command. you should see a usb device |
| using 0x2207 as its USB verdor id. |
| |
| for more detail about the rkdeveloptool. please read the usage. |
| |
| rkdeveloptool -h |
| |
| use rkdeveloptool wl command to write lba. BeginSec is the lba on device |
| you want to write. |
| |
| sudo rkdeveloptool wl <BeginSec> <File> |
| |
| to flash U-Boot image use below command. U-Boot binary is made by mkimage. |
| see doc/README.rockchip for more detail about how to get U-Boot binary. |
| |
| sudo rkdeveloptool wl 64 <U-Boot binary> |
| |
| Current set of rkdeveloptool commands supported: |
| - rci: Read Chip Info |
| - rfi: Read Flash Id |
| - rd : Reset Device |
| - td : Test Device Ready |
| - rl : Read blocks using LBA |
| - wl : Write blocks using LBA |
| - wlx: Write partition |
| |
| To do |
| ----- |
| * Fully support Rockusb protocol |
