* linux USB host problem
@ 2006-08-02 5:29 robinpv
0 siblings, 0 replies; only message in thread
From: robinpv @ 2006-08-02 5:29 UTC (permalink / raw)
To: linuxppc-dev
Hi,
I am using linux 2.6.16.1 for MPC5200 based platorm. It has PCI based USB Host (SM501 chip)
I am facing problem in the USB host interrupts. When i plug in the USB i get the
below message.
new full speed USB device using vgxfb and address 2.
vgxfb 0000:00:10.0: Unlink after no-IRQ? Controller is probably using the
wrong IRQ.
the capture of /pci/interrupts is
CPU0
1: 0 MPC52xx Level ohci_hcd:usb1
7: 751 MPC52xx Level eth0
40: 7899 MPC52xx Level mpc52xx_psc_uart
BAD: 0
The device address is assigned but after that interrupt is not coming.
After that if i unplug and plugin there is no notification.
the sm501 chip in which USB host is there, is connected on PCI bus.
The PCI mapping is as follows
static char pci_irq_table[][4] =
/*
* PCI IDSEL/INTPIN->INTLINE
* A B C D
*/
{
{PIRQA, PIRQA, PIRQA, PIRQA}, /* SM501 */
{PIRQD, PIRQD, PIRQD, PIRQD}, /* IDE */
{PIRQC, PIRQC, PIRQC, PIRQC}, /* Ethernet */
{PIRQB, PIRQB, PIRQB, PIRQB}, /* Bridge */
};
const long min_idsel = 16, max_idsel = 18, irqs_per_slot = 4;
return PCI_IRQ_TABLE_LOOKUP;
I tried with acpi=off, but in vain.
Can some give inputs on this how to proceed.
Thanks & Regards,
Robin
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2006-08-02 5:29 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2006-08-02 5:29 linux USB host problem robinpv
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox