Re: mpc8270 & Intel 82551ER on 2.6.17.14

1. You may want to check whether the device is configured properly by
   enabling the debug statements or using the lspci command. I mean the 
   BAR registers.

2. Also check whether correct the interrupt is assigned to the 
   device using cat /proc/interrupts command under linux. 

3. As far as the EEPROM is concerned, you need to enable debug to check 
   whether there is any check sum error. If there is a check sum error 
   in EEPROM, the device may not come up too. As you are using it in 
   powerpc platform, you need to take care of the endianess while 
   writing to the EEPROM.

Hope this helps!

Thanks
G.Muruganandam

Hi Nicholas,

On 6/29/07, Nicholas Hickman [off-list ref] wrote:

quoted

I am having trouble getting two 82551ER Ethernet controllers 

running in

quoted

Linux.  I am able to scan the PCI bus and see the devices and I was 

even

quoted

able to program the EEPROM from U-boot.

In the kernel I mapped the IRQ's through /arch/ppc/m82xx_pci.c.  

I've been

quoted

using the e100 drive that comes with the 2.6.17.14 kernel and have 

also

quoted

tried the driver directly from Intel.  Both give the same results.  

The PCI

quoted

scan shows the correct output for how the device should be 

configured.

<snip..>

I have the same, exact same problem. But there are some of the
differences with the setup though. I have an MPC5200B and the other
difference is that I have a 2.6.21-rt3. However its the same ethernet
controller.

I am trying out a few things here, some of them being complete
guesses. But if I hit something, I will let this list know. Anyone
else had similar issues ? Request you to please holler.

regards
prady
-- 
htp://prady.livejournal.com
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