[parisc-linux] proposed changes to dino.c

Alan Cox alan at lxorguk.ukuu.org.uk
Fri Dec 12 12:28:18 MST 2003


On Gwe, 2003-12-12 at 14:58, James Bottomley wrote:
> The reason for it is the Quad tulip card:  The bridge chip only requests
> a 1MB PCI window, but each chip has two memory BARs: the iomem region
> (128bytes, with page alignment) and the ROM (256Kb).  The bridge
> allocation routines seem to work the BARs in reverse, so by the time the
> ROM BARs are allocated, the memory window is full and none of the
> devices can function.

You don't need the ROM mapped expect for reading stuff like MAC, and you
can do that by mapping each port over the same address range.



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