PCI in uClinux

Hi Marco,

When I perpared the altpci driver, I had tried to simplify the address translation between pci space and avalon space. I decided to use the same address mapping for both spaces, so that I don't have to add another address tables in drivers.

I checked your ptf and altpci.c .

Please update in the pci core toolbench, page 4, avalon config.

change the pci base address in the address translation table,

row 0, pci config space, pci base 0, == avalon 0x06000000 uncached to nios2 0x86000000

row 1, pci mem space, pci base 0x86100000, == nios2 0x86100000

row 2, pci mem space, pci base 0x86200000, == nios2 0x86200000

....

row 7, pci io space, pci base 0x86700000, == nios2 0x86700000

Note, we need to uncache the access for nios2, by setting address bit 31 .

Hope this will help.

Hippo