8250_pci and OXPCIe952

8250_pci and OXPCIe952

[Breno Leitao]

Hi Greg,

I put an OXPCIe952 card on my machine (PPC), and the driver is not
running fine.
First of all, it identifies 8 ports, which is wrong. Also, it says

0000:01:00.1: ttyS1 at MMIO 0x3c05ff7fd200 (irq = 66) is a 16C950/954

and the driver loads without any other error, although it's not working.

So, my question is: Does this driver support this chipset? Was it ever
tested on PPC ?


Thanks
Breno

---
lspci output

01:00.0 System peripheral: Oxford Semiconductor Ltd Device c20c
	Subsystem: Oxford Semiconductor Ltd Device c20c
	Flags: fast devsel, IRQ 65
	Memory at 3c05ff7fb000 (32-bit, non-prefetchable) [disabled] [size=1K]
	Memory at 3c05ff800000 (32-bit, non-prefetchable) [disabled] [size=2M]
	Capabilities: [40] Power Management version 3
	Capabilities: [50] Message Signalled Interrupts: Mask- 64bit+ Count=1/1 
Enable-
	Capabilities: [70] Express Endpoint, MSI 00
	Capabilities: [100] Device Serial Number 00-02-00-11-11-e0-30-00
	Capabilities: [110] Power Budgeting <?>

01:00.1 Serial controller: Oxford Semiconductor Ltd Device c20d (prog-if 
02 [16550])
	Subsystem: Oxford Semiconductor Ltd Device c20d
	Flags: fast devsel, IRQ 66
	Memory at 3c05ff7fc000 (32-bit, non-prefetchable) [size=16K]
	Memory at 3c05ffa00000 (32-bit, non-prefetchable) [size=2M]
	Memory at 3c05ffc00000 (32-bit, non-prefetchable) [size=2M]
	Capabilities: [40] Power Management version 3
	Capabilities: [70] Express Endpoint, MSI 00
	Capabilities: [b0] MSI-X: Enable- Mask- TabSize=16
	Capabilities: [100] Power Budgeting <?>
	Kernel driver in use: serial
	Kernel modules: 8250_pci

Re: 8250_pci and OXPCIe952

[Greg KH]

On Tue, Nov 09, 2010 at 12:57:45PM -0200, Breno Leitao wrote:
> Hi Greg,
> 
> I put an OXPCIe952 card on my machine (PPC), and the driver is not
> running fine.
> First of all, it identifies 8 ports, which is wrong. Also, it says

How many should there be?

> 
> 0000:01:00.1: ttyS1 at MMIO 0x3c05ff7fd200 (irq = 66) is a 16C950/954
> 
> and the driver loads without any other error, although it's not working.

What should the address and irq be?

> So, my question is: Does this driver support this chipset?

I don't know.

> Was it ever tested on PPC ?

I don't know.

thanks,

greg k-h

Re: 8250_pci and OXPCIe952

[Breno Leitao]

Greg,

On 11/09/2010 01:45 PM, Greg KH wrote:
> How many should there be?
Only two UARTs in this chipset.

> What should the address and irq be?
These address seems to be fine, although the driver is not working. I 
suppose that there is something that is broken in the device driver.

Thanks