Re: Anyone using an ISP1505?

[Bill Gatliff <bgat@billgatliff.com>]

Gadiyar, Anand wrote:
>> I'm working on an OMAP3530CUS board that uses an ISP1505 USB PHY, and I
>> haven't gotten much luck getting the kernel to recognize any USB
>> devices.  No luck, actually.  :)  My oscilloscope and the schematic say
>> that the hardware is wired up properly, I'm just wondering if anyone has
>> a similar configuration that's working for them--- and which kernel they
>> are using?
>>     
>
> Is it with the OTG controller or with the EHCI controller?
>   

The pins of the ISP1505 are tied to pins T24, T23, and so on of the
OMAP3530CUS, which on my schematic are labeled UH0_D0, UH0_D1, etc. 
That's EHCI, right?  But I have both the EHCI and MUSB drivers enabled,
and both appear to initialize properly according to the kernel logs.

> The NXP ISP1505 is supposed to be transparent - no programming usually
> required.
>   

That's what I thought.  I have the "nop" transceiver driver installed.

> If it's with the EHCI controller, you need to take care of a couple of
> issues on the board (due to the input clocking mode used in the OMAP3).
>   

Can you elaborate?  Thanks!


b.g.

-- 
Bill Gatliff
bgat@billgatliff.com