[U-Boot] [U-Boot 0/3] introduce Rockchip rockusb

[Simon Glass]

Hi Marek,

On 20 March 2017 at 06:24, Marek Vasut <marex at denx.de> wrote:
> On 03/20/2017 02:53 AM, Eddie Cai wrote:
>> 2017-03-17 5:26 GMT+08:00 Marek Vasut <marex at denx.de>:
>>
>>> On 03/15/2017 08:56 AM, Eddie Cai wrote:
>>>> rockusb is a protocol run between host pc and device. it help people get
>>> device
>>>> info, flash image to device. this patch implement rockusb on device side.
>>>
>>> What is the benefit of this yet-another NIH protocol compared to ie.
>>> DFU/UMS/Thor/Fastboot ?
>>>
>> This is mostly  used on Rockchip chipset. All the rockchip SoC boot rom and
>> develop tools implement this protocol.
>> So we want to use the same protocol which compatible with current tools.
>
> This does not really answer my question. We have protocols which
> implement exactly this functionality already, why do we need another one ?

I think the point is that this is widely used with Rockchip devices,
and for mainline U-Boot to be fully useful it needs to support it.

However I do think it would be good to move to using DFU etc. if possible?

Regards,
Simon