[OpenWrt-Devel] QCA953x usb mode / chipidea

[Piotr Dymacz]

Hi Arvid,

On 14.03.2019 20:22, Arvid Picciani wrote:
> not sure. the bootstrap vec seems to be all zero
> 
> $  io -r -4 0x180600AC
> 180600ac:  00000000

For QCA953x, this should be 0x180600b0 (if bit 7 is set then you have 
device mode).

> GPIO13 is not connected according to ZBT.
> not much i can do about that.

I'm not sure about default (internal) values.
Maybe keeping that I/O floating is the reason.

-- 
Cheers,
Piotr

> 
> 
> 
> On Thu, Mar 14, 2019 at 7:51 PM Piotr Dymacz <pepe2k at gmail.com 
> <mailto:pepe2k at gmail.com>> wrote:
> 
>     Hi Arvid,
> 
>     On 14.03.2019 19:38, Arvid Picciani wrote:
>      > Hi,
>      >
>      > i'm trying to bring up the ZBT WE826-Q,  but usb wont come up.
>      >
>      > After much digging,
>      > deleting patches-4.14/920-usb-chipidea-AR933x-platform-support.patch
>      > solves the issue.
>      >
>      > How is this supposed to work with other boards?
> 
>     You should first double check bootstrap configuration on your board.
>     For host mode, GPIO13 should be pulled down.
> 
>     -- 
>     Cheers,
>     Piotr
> 
> 
> 
> -- 
> +4916093821054


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