| 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 |