Hi Eddie,
add a simple readme to introduce rockusb and tell people how to use it
Signed-off-by: Eddie Cai eddie.cai.linux@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?
Does it allow for reading/writing the RK soc's env variables ?
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.
+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.
+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.
Best regards,
Lukasz Majewski
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