Hi Lukasz
2017-04-20 6:39 GMT+08:00 Lukasz Majewski <lu...@denx.de>: > Hi Eddie, > >> add a simple readme to introduce rockusb and tell people how to use it >> >> Signed-off-by: Eddie Cai <eddie.cai.li...@gmail.com> >> --- >> doc/README.rockusb | 35 +++++++++++++++++++++++++++++++++++ >> 1 file changed, 35 insertions(+) >> create mode 100644 doc/README.rockusb >> >> diff --git a/doc/README.rockusb b/doc/README.rockusb >> new file mode 100644 >> index 0000000..13893d9 >> --- /dev/null >> +++ b/doc/README.rockusb >> @@ -0,0 +1,35 @@ >> +Rockusb (Rockchip USB protocol) >> +===================================================== >> + >> +Overview >> +-------- >> + >> +Rockusb protocol is widely used with Rockchip devices. >> +It can read/write info, > > R/W the info is the differentiator here. What kind of information canwe > read from the device? Do you plan to add this in the future? SoC infor, Storage infor, thins in eFuse like serial number. I did have plan to add this function. But to keep things simple. I want to add minimum function first. It will be easy for me to add new function if everybody agree the framework. > > Does it allow for reading/writing the RK soc's env variables ? What do you mean soc's env variables here? yes If you mean things like cpu model number > >>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 >> +is open source, It is maintained by Rockchip. > > Ok. > >> + >> +Usage >> +-------- >> +The Usage of Rockusb command is >> +rockusb <USB_controller> [<devtype>] <devnum> >> +e.g. rockusb 0 mmc 0 >> +rockusb 0 usb 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. Then use rkdeveloptool >> +sudo rkdeveloptool wl <BeginSec> <File> >> +to flash U-Boot image use command >> +sudo rkdeveloptool wl 64 <U-Boot binary> > > Just informative - this could be achieved with UMS command with using > dd. yes, if you only talk about wl command. But there are many other rockusb command can not achieved with UMS command > >> +There are plenty of Rockusb command. but wl(write lba) and >> +rd(reboot) command. > > Reboot is also supported - but there is no unification - though each > gadget (thor, dfu, fastboot) > >> These two command can let people flash >> +image to device. > > IMHO reading images (for backup) would be handy as well. I do have plan to add this function. But I would like this minimum set agreed by everybody. then add more command. If i implemented all the rockusb command. It will be huge work for me when i move from V1 to V2 patch. Please help review my V1 patch. My V3 patch will based on V1 patch. Let me know if you have more comment. https://lists.denx.de/pipermail/u-boot/2017-March/283730.html > >> + >> +To do >> +----- >> +* Fully support Rockusb protocol > > For me it is OK, to have a minimal subset of commands supported - let's > add the very basic support and extend it latter. Totally agree. > > > Best regards, > > Lukasz Majewski > > -- > > DENX Software Engineering GmbH, Managing Director: Wolfgang Denk > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
