Re: [LinuxBIOS] PCI Express add-on cards and Expansion Roms

[Li-Ta Lo]

On Wed, 2005-08-31 at 15:13 -0400, [e-mail] wrote:
> Hello All,
>
> I am trying to work on getting a PCI-E card working and came across an
> error that I am wondering if I need to worry about.  Below shows that
> the VGA ROM is loading, but not the ROM from the PCI-E card (at the
> bottom).  Both of these cards are in slots and not onboard.  The PCI-E
> card is an Ethernet card.  As the device is getting a bus and
> resources seemingly just fine, I would think that the ROM would have
> been found.  My question is … do all add-on cards need to load an
> expansion ROM or can they run just fine without it?  The error in
> question is “Incorrect Expansion ROM Header Signature ffff”.

Are you sure there is anything on the expansion rom?
> FYI on devices:
>
> 00:01.0 is the PCI-PCI bridge
>
> 02:06.0 is the VGA card on the PCI-PCI bridge
>
> 00:02.0 is the PCI-E bridge
>
> 04:00.0 is the ethernet card on the PCI-E bridge
>
> PCI: 00:01.0 1c <- [0x0000001000 - 0x0000001fff] bus 2 io
>
> PCI: 00:01.0 20 <- [0x00fc000000 - 0x00fdffffff] bus 2 mem
>
> PCI: 02:06.0 10 <- [0x00fc000000 - 0x00fcffffff] mem
>
> PCI: 02:06.0 14 <- [0x0000001000 - 0x00000010ff] io
>
> PCI: 02:06.0 30 <- [0x00fd000000 - 0x00fdffffff] rom
>
> PCI: 00:02.0 1c <- [0x0000002000 - 0x0000002fff] bus 4 io
>
> PCI: 00:02.0 20 <- [0x00fe000000 - 0x00fe0fffff] bus 4 mem
>
> PCI: 04:00.0 10 <- [0x00fe020000 - 0x00fe023fff] mem
>
> PCI: 04:00.0 18 <- [0x0000002000 - 0x00000020ff] io
>
> PCI: 04:00.0 30 <- [0x00fe000000 - 0x00fe01ffff] rom
>
> PCI: 00:01.0 bridge ctrl <- 000b
>
> PCI: 00:01.0 cmd <- 147
>
> PCI: 02:06.0 cmd <- 143
>
> PCI: 00:02.0 bridge ctrl <- 0007
>
> PCI: 00:02.0 cmd <- 547
>
> PCI: 04:00.0 cmd <- 143
>
> PCI: 02:06.0 init
>
> rom address for PCI: 02:06.0 = fd000000
>
> Class Code mismatch ROM 00000003, dev 00030000
>
> copying VGA ROM Image from fd000000 to c0000, 8000 bytes
>
> halt_sys:
> file /home/vanecp/design/freebios2-3/src/devices/emulator/x86emu/ops.c
>
> , line 4400
>
> PCI: 04:00.0 init
>
> rom address for PCI: 04:00.0 = fe000000
>
> Incorrect Expansion ROM Header Signature ffff
>
> Devices initialized
>
> Cheers,
> Peter Van Echaute