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Re: USB on MIPS

To: samavarthy c <samavarthy@hotmail.com>
Subject: Re: USB on MIPS
From: Jun Sun <jsun@mvista.com>
Date: Thu, 18 Dec 2003 09:43:21 -0800
Cc: linux-mips@linux-mips.org, jsun@mvista.com
In-reply-to: <BAY7-F37p6I65awhyxk00043bd8@hotmail.com>; from samavarthy@hotmail.com on Thu, Dec 18, 2003 at 07:58:36PM +0530
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On Thu, Dec 18, 2003 at 07:58:36PM +0530, samavarthy c wrote:
> Hi,
> 
> I am working on a PDA based board which has a NEC MIPS VR4131
> processor.
> The board has a companion chip MediaQ 1132 which has OHCI support
> builtin.
> The kernel used is MontaVista HardHat 2.4.18. I am trying to configure
> MQ1132 for USB Host support. It looks like the Host controller
> (MQ1132) is initialized properly but not sure. When I plug in a USB
> stick on to the USB port, I get the following messages.
> -----------------------------------------------------------------
> hub.c: USB new device connect on bus1/1, assigned device number 2
> usb-ohci.c: unlink URB timeout
> usb.c: USB device not accepting new address=2 (error=-145)
> 
> hub.c: USB new device connect on bus1/1, assigned device number 3
> usb_control/bulk_msg: timeout
> usb-ohci.c: unlink URB timeout
> usb.c: USB device not accepting new address=3 (error=-145)
> -------------------------------------------------------------------
> Has anyone experienced the same out there. Could any one suggest how
> to debug this error. What could be the problem?.
> 

Another possiblity (which is probably more likely) is the IRQ
number is not seupt correctly.  

Are you using Rokchopper II baseboard?  If so, single-function
PCI card should work properly w.r.t. IRQ.  If you are using other
backplan or using multi-function pci card, you need to some IRQ
fixup.

Jun

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