Powerbase IDE: DMA & ohare-ata

[Paul Mackerras]

Ty Hedrick <thedrick at netspace.org> wrote:

> It seems that even though the Powerbase is perfectly capable of DMA, the
> test in ide-pmac.c to setup DMA 
> 
> #ifdef CONFIG_BLK_DEV_IDEDMA_PMAC
>                 if (np->n_addrs >= 2 && np->n_intrs >= 2) {
> 
> fails because n_intrs is 0.  Risking my mostly worthless IDE drive I

Could you get a copy of lsprop (ftp://samba.anu.edu.au/pub/linux-pmac/misc)
and do `lsprop /proc/device-tree/bandit/ohare/ide' (or whatever the
node for your IDE controller is called) and send it to me?

In fact we don't use the DMA interrupt, so the test for np->n_intrs
could be removed.

Paul.

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