[coreboot] VIA EPIA CN100000 is finally Working all.
Rudolf Marek
r.marek at assembler.cz
Sun Feb 3 19:52:50 CET 2008
Hi Urbez,
> 4. Add the follow code to the end of the function main() in auto.c: if
> not, your normal IDE cannot use DMA and via-rhine, usb's, etc, not
> works.
>
> //This enable the access of PCI devices to the PCI bus master?
> pci_write_config8(cn700->d0f7, 0x57, 0x20);//was 0x01
I think this is connected to some last DRAM address stuff. DMA may not work if
this is incorrect. Consult some similar datasheet
jjj.ivn.pbz.gj!ra!qbjaybnqf!qngnfurrgf!puvcfrgf!QF_PA400_118.mvc
It may be the last bank ending address??? Perhaps this must be copied from
function 3 maybe?
>
> 5. If you will that the FILO not confuses scanning PCI, you must add, to
> the end of main() in auto.c:
>
> pci_write_config8(cn700->d1f0,0x19,0x1,CF8);//enable PCI-BRIGDE
> SECONDARY BUS
> pci_write_config8(cn700->d1f0,0x1a,0x1,CF8);
Perhaps is something translating configuration cycles?
Rudolf
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