PIRQ problem (Please try using pci=biosirq)

Hi,

I am using 256kb BIOS flashrom, etherboot, and kernel image
   on compact flash IDE .

I get this error in LinuxBIOS. 
   ***Extract***
   Copying IRQ routing tables to 0xf0000...done.
   Verifing priq routing tables copy at 0xf0000...failed
   Wrote linuxbios table at: 00000500 - 0000064c  checksum b79a
   ***Extract***
   When I try do read from 0xf0000 after copying, it does shows 
   0xff instead some value.
   I had forced the sizeram to return 1MB less then the actual
   Ramsize to make it work with etherboot.

When the kernel boots up, the ethernet interface does 
   not come up.
   **Extract for the Linux kernel messaage**
   eth0: RealTek RTL8139 Fast Ethernet at 0xc4800000, 00:30:02:09:02:93, IRQ 0
PCI: No IRQ known for interrupt pin A of device 01:05.0. Please try using pci=biosirq.
eth1: RealTek RTL8139 Fast Ethernet at 0xc4802000, 00:30:02:09:02:92, IRQ 0
   **Extract for the Linux kernel messaage**

I have tried the checkpir,etc on the irq tables. It is OK 
   at the command prompt. But I still get this error.

Any suggestion on this.

Regards
Deepak

Regards
Deepak