[Etherboot-developers] EEPRO100.C PCI activiation

[Christoph P. <chr...@al...>]

Hello Etherboot Hackers !

Have a look at eepro100.c in the eepro100_probe():


        /* From Matt Hortman <mbh...@ac...> */
        if (p->dev_id == PCI_DEVICE_ID_INTEL_82557 ) {
                /*
                * check to make sure the bios properly set the
                * 82557 (or 82558) to be bus master
                *
                * from eepro100.c in 2.2.9 kernel source
                */

		code
		code
        }


Why is this code only done for 82775 and not all derivates.
I tried to use a 82559ER which was NOT able to run etherboot.
The chip was found, mac address, etc, was read out, but writing
a command to the chips, the CMD registers does not get 0 after 
writing to it. And the return STATUS register was always 0.

In the GRUB I used a local patch in the eepro100 driver with the 
lines:

	if ((p->dev_id == PCI_DEVICE_ID_INTEL_82557 ) || 
	    (p->dev_id == PCI_DEVICE_ID_INTEL_82559er) ) {
		/*
		* check to make sure the bios properly set the

... and here the chip works.

Should there not be all chips of the familiy in the "if" ?

An interesting thing: We are working on a prototype version
of a new built hardware using the i82559ER. On prototype A
the NIC works, on protoype B, the problem occurs. So there
is a depenceny on BIOS and hardware mapping of addresses, etc...

Bye
	Christoph P.


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