[Top] [All Lists]

Re: USB hangs on AU1100

To: Rodolfo Giometti <>
Subject: Re: USB hangs on AU1100
From: Pete Popov <>
Date: Thu, 05 May 2005 09:42:41 -0700
Cc: "''" <>
In-reply-to: <>
Organization: Embedded Alley Solutions, Inc
Original-recipient: rfc822;
References: <>
On Thu, 2005-05-05 at 17:54 +0200, Rodolfo Giometti wrote:
> Hello,
> I'm just using USB host support on a AU1100 developing board (DB1100
> configuration) and i notice that CPU locks in function
> au1xxx_start_hc():
>         /* wait for reset complete (read register twice; see au1500 errata) */
>         while (au_readl(USB_HOST_CONFIG),
>                 !(au_readl(USB_HOST_CONFIG) & USBH_ENABLE_RD))
>                 udelay(1000);
> while waiting for USB controller to reset. I checked it out and I
> discovered that register USB_HOST_CONFIG is fixed at value 0xe! So the
> controller never reset...
> Linux is 2.6.12-rc3 from CVS.
> Someone knows whats wrong?

It sounds like this is a custom Au1100 based board? What boot code are
you running?  I'm guessing the SOC isn't setup correctly or you have a
HW problem.


<Prev in Thread] Current Thread [Next in Thread>