[U-Boot] [PATCH V3 3/4] rockchip:usb: add a simple readme for rockusb

[Simon Glass]

Hi Eddie,

On 28 April 2017 at 18:41, Eddie Cai <eddie.cai.linux at gmail.com> wrote:
> add a simple readme to introduce rockusb and tell people how to use it
>
> Signed-off-by: Eddie Cai <eddie.cai.linux at gmail.com>
>
> Changes in v3:
> -fix checkpatch error
> ---
>  doc/README.rockusb | 37 +++++++++++++++++++++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 doc/README.rockusb
>

> diff --git a/doc/README.rockusb b/doc/README.rockusb
> new file mode 100644
> index 0000000..262596e
> --- /dev/null
> +++ b/doc/README.rockusb
> @@ -0,0 +1,37 @@
> +Rockusb (Rockchip USB protocol)
> +=====================================================
> +
> +Overview
> +--------
> +
> +Rockusb protocol is widely used with Rockchip 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

is:

blank line here

> +rockusb <USB_controller> <devtype> <dev[:part]>

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> +e.g. rockusb 0 mmc 0

blanke line

> +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

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> +sudo rkdeveloptool wl  <BeginSec> <File>

What are the parameters for? What do they mean?

blank line

> +to flash U-Boot image use command

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> +sudo rkdeveloptool wl  64 <U-Boot binary>

blank line

Which U-Boot file? Please be specific

> +There are plenty of Rockusb command. but wl(write lba) and
> +rd(reboot) command. These two command can let people flash
> +image to device.
> +
> +To do
> +-----
> +* Fully support Rockusb protocol
> --
> 1.9.1
>

Regards,
Simon