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
next 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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