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- From: andrew@megadata.mega.oz.au (Andrew McRae)
- Subject: Looking for details on WD8003 configuration bits
- Message-ID: <1992Nov6.065405.19704@megadata.mega.oz.au>
- Sender: news@megadata.mega.oz.au
- Organization: Megadata P/L, North Ryde, Sydney, Aust.
- Date: Fri, 6 Nov 1992 06:54:05 GMT
- Lines: 46
-
- Greetings,
- I am looking for details about configuring the WD8003
- Ethernet card, specifically enabling access to the boot ROM
- socket on the card.
-
- The we driver in 386bsd doesn't know about the ROM socket,
- and I have looked at the packet driver for the WD8003 and that
- also doesn't do anything with the ROM. When I run the setup/diagnose
- program via DOS, I can soft-configure the ROM, or if I fix the
- ROM address to 0xD8000/16K, the diagnose program recognises it. I have
- fixed the RAM/IRQ to IRQ 3, RAM 0xD0000. One strange thing I have
- found is that if I soft configure the board for 64Kb ROM space, and
- power cycle the PC, it seems to forget the ROM configuration and
- disable the ROM access.
-
- When I put a test 16Kb ROM in the board that contains some easily
- recognised pattern data (note this ROM will not have the
- 0xAA55 stuff that the BIOS recognises), and try to access the
- ROM from the kernel, then the ROM doesn't seem to appear in
- the address space. To check this, I can run:
-
- dd if=/dev/mem bs=4k | hexdump | more
-
- And then search for d0000. I can then see the shared RAM area, and
- see the net packets in the shared RAM and so forth. But the
- area of memory starting at 0xD8000 is still all 0xFF (just like
- the rest of the unused I/O memory space).
-
- My thought is that there is some configuration bit that enables
- access to the ROM space (just like it does with the RAM), but
- there is nothing in any documentation I have found that indicates
- how to do this, and the drivers I have looked at do not bother
- accessing the ROM, so there are no details about the ROM setup.
-
- Since you can soft-configure the ROM address and ROM size, there
- must be some bits within the control I/O address of the card to
- control the ROM access. Does anybody have some more complete
- documentation about this card that I could use? Has anybody
- successfully accessed the ROM on the card?
-
- Thanks for any help.
-
- Andrew McRae inet: andrew@megadata.mega.oz.au
- Megadata Pty Ltd, uucp: ..!uunet!megadata.mega.oz.au!andrew
- North Ryde 2113 Phone: +61 2 805 0899
- NSW AUSTRALIA Fax: +61 2 887 4847
-