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From: Rodolfo Giometti <giometti@linux.it>
To: linux-mips@linux-mips.org
Subject: USB hangs on AU1100
Date: Thu, 5 May 2005 17:54:35 +0200	[thread overview]
Message-ID: <20050505155435.GA28227@enneenne.com> (raw)

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?

Thanks in advance,

Rodolfo Giometti

-- 

GNU/Linux Solutions                  e-mail:    giometti@linux.it
Linux Device Driver                             giometti@enneenne.com
Embedded Systems                     home page: giometti.enneenne.com
UNIX programming                     phone:     +39 349 2432127

             reply	other threads:[~2005-05-05 15:54 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-05-05 15:54 Rodolfo Giometti [this message]
2005-05-05 16:42 ` USB hangs on AU1100 Pete Popov
2005-05-05 17:20   ` Thiemo Seufer
2005-05-05 17:51     ` Maciej W. Rozycki
2005-05-05 18:50       ` Pete Popov
2005-05-05 17:56     ` Ulrich Teichert
2005-05-05 17:56       ` Ulrich Teichert
2005-05-05 19:18       ` Thiemo Seufer
2005-05-06  9:18   ` Rodolfo Giometti
2005-05-06 14:27   ` Rodolfo Giometti
2005-05-06 14:54     ` Dan Malek
2005-05-06 15:51     ` Pete Popov

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