From: robinpv <robinpv@aiware•co.jp>
To: linuxppc-dev <Linuxppc-dev@ozlabs•org>
Subject: linux USB host problem
Date: Wed, 02 Aug 2006 14:29:14 +0900 [thread overview]
Message-ID: <44D0382A.1090404@aiware.co.jp> (raw)
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
reply other threads:[~2006-08-02 5:29 UTC|newest]
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