Alan Cox wrote:
Marvell PATA on 6121 and similar chips should also work, but that hasn't
yet been tested. Here's the full list of what still needs testing:
- master + slave devices
- ATAPI
- 6121 (6123? others?)
LBA48
And 80-pin cables... I cannot find where it permits cable detection or
where DMA/PIO mode in AHCI mode, complicating things :(
Also, there is the open question of how to deal with pata_marvell
co-existence
I think for the moment make PATA support by AHCI a config option and as
soon as we trust it we can get rid of the option and of pata_marvell.
I'm not sure I see the worth of making PATA, solely, a config option?
Today, the choice is either pata_marvell (PATA) or ahci w/ module option
(SATA).
My patches morph that choice into: pata_marvell (PATA) or mv-ahci (PATA
+ SATA).
Thus, considering the hardware, if the user disables PATA support in
mv-ahci, they still have the problem of two drivers competing for the
same PCI IDs - no matter that the drivers would each probe different bus
types (PATA, or SATA).
We could skip SATA_MV_AHCI if PATA_MARVELL is set in .config... Now
that mv-ahci solely contains Marvell PCI IDs, that would have the effect
at compile-time that a module option would have at runtime.
Jeff
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