Hi all, I have been coming across a problem with my serial port EXAR chip XR 17D152, when I try to use the 8250_pci driver. I am using kernel-2.6.12.1 on RHEL4.0-U1 on pSeries box with 4-cpu. 8250_pci during the boot time, after detecting the exar chip (I checked with the pci_dev structure and the pci_device_id structure for the info), is unable to get thru the port registration (static int __devinit_pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent) procedure in 8250_pci.c). I debugged the problem and traced upto the routine "static int uart_match_port(struct uart_port *port1, struct uart_port *port2" in 8250.c where UPIO_MEM is not satisfying the condition port1->membase==port2->membase and hence returns 0.
If I use the printk for dumping the port-> membase value the system hags during the boot time with a blank screen (on the serial terminal). I am yet to try with kernel-2.6.12.2. Please let me know how to proceed in this case. Thanks, V.Ananda Krishnan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/