00000000-0009ffff : System RAM
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000f0000-000fffff : System ROM
00100000-03ffffff : System RAM
00100000-002006e7 : Kernel code
002006e8-002189d3 : Kernel data
e0000000-e3ffffff : VIA Technologies VT 82C597 Apollo VP3
e4000000-e4ffffff : ATI Mach64 GB
e6000000-e6000fff : ATI Mach64 GB
e8000000-e803ffff : DEC DC21041
e9000000-e900ffff : 3Com 3C900 10bTPO
ea000000-ea00007f : DEC DC21041
> > Found 3c900 Boomerang 10baseT at PCI address 0xec00, IRQ 11.
> > Found Digital DC21041 Tulip at PCI address 0xea000000, IRQ 11.
> > Is the 0xe800 vs 0xea00 significant? I'm clueless here.
>
> The addresses are IO: 0xe800 vs. MEM: 0xea000000
> they are of DIFFERENT IO facilities.
Doh! That's what I get for trying to debug something at 3AM when I
can't sleep. I had read the comment in Donald's code too!:
/* This driver was originally written to use I/O space access, but now
uses memory space by default. Override this this with -DUSE_IO_OPS.
*/
lspci says this:
00:08.0 Ethernet controller: Digital Equipment Corporation DECchip 21041
[Tulip Pass 3] (rev 21)
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 set
Interrupt: pin A routed to IRQ 11
Region 0: I/O ports at e800
Region 1: Memory at ea000000 (32-bit, non-prefetchable)
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