Model for an ATA driver

Peter Grehan grehan at freebsd.org
Fri Aug 10 17:34:39 UTC 2007


Hi Olivier,

> I started investigating how to generate a native ATA driver for the Efika
> as an alternative to the OFW-based Nexus emulation - the idea is to provide
> write access in the future to edit partitions.
> 
> Does anyone have recommendations to approach this? I've found code in
> /usr/src/sys/dev/ata/ata-chipset.c (seems to be a pot-pourri of all 
> architectures) but don't see the registers allocation...

  Examples of ATA front-ends for non-standard chipsets are in 
powerpc/powermac/ata_macio.c & ata_kauai.c.

later,

Peter.


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