[U-Boot] [PATCH 2/4 v3] musb: Add Phy programming for usingexternal Vbus

Orjan Friberg
2011-07-06T11:12:38Z

On 2011-07-05 16:16, Gupta, Ajay Kumar wrote:
>> (On our custom board, we have added an external vbus supply to be able
>> to draw> 100 mA.)
> So it seems you are using PHY inside TPS659x but external Vbus for which
> I think you need to,
> 1. Explicitly set "OTG_CTRL.D5 = 0" so that PHY doesn't drive 5V.
> 2. Do not set musb_cfg.extvbus

Great, thanks for clarifying (and agreed on all points).

It seems the best I can do is turn off DRVVBUS as soon as the chip has
entered host mode (and turned thus it on).

Thanks,
Orjan

--
Orjan Friberg
FlatFrog Laboratories AB