Re: SATA ICH6M problems on Sharp M4000

[Randy.Dunlap]

On Mon, 21 Nov 2005, Josh Litherland wrote:

>
> Trying to get this laptop operational; it has SATA for the hard disc and
> PATA for the optical drive.  The hard drive is wired to the secondary
> IDE interface, the optical to the primary.  As it stands, driving the
> whole system with the PATA (piix) driver works, but performance for the
> hard disc is (predictably) extremely poor.  With ata_piix driving the
> hard drive, performance is great, but the optical device is never
> enumerated.  When the piix driver tries to load, the following occurs:
>
> ide0: I/O resource 0x1F0-0x1F7 not free.
> ide0: ports already in use, skipping probe
> ide1: I/O resource 0x170-0x177 not free.
> ide1: ports already in use, skipping probe
>
> We have tried to resolve this through a wide variety of kernel command
> line options.  Tried every combination we could think of of ide0=0x1f0,
> ide1=0x170, ide0=noprobe, ide1=noprobe, acpi=off, noapic, lapic,
> pci=routeirq.  Tried shaking up module load order and using ide-generic
> instead of piix.  ahci won't bind to the device; throws error -12.
>
> Some information about this system including dmesg and lspci:
>
> http://downloads.emperorlinux.com/research/lkml/sharp_m4000/
>
> Thanks in advance for any advice you can give.

Is there a BIOS option for SATA or AHCI modes,
like Compatible mode or Enhanced mode?  If so, which mode
is it in?

-- 
~Randy
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