On Wed, Sep 16, 2015 at 10:00 PM, Robert Moskowitz <rgm(a)htt-consult.com> wrote:
I went searching for information on sata port multiplier and found:
http://www.spinics.net/lists/arm-kernel/msg377619.html
Is this still the status of this and if so how do I set AHCI_HFLAG_NO_PMP to
true?
Well if you read the message you reference it states:
"So add a module parameter to enable pmp usage, and default this to off, so
that directly attached disks keep working normally."
So it seems if you use a multiple you need to do a different option
than without so it indicates it would need it. If you do "modinfo
ahci_sunxi" you'll see that actually the patch has landed and there is
a enable_pmp parameter. So you'll need to create something like
/etc/modprobe.d/sunxi.conf and add a line "options ahci_sunxi
enable_pmp=1" line (no I've not verified that is correct so you'll
need to check it) and reboot.
Peter
But it seems there were more messages about this...
On 09/16/2015 03:34 PM, Robert Moskowitz wrote:
>
> I figured out the various ports on the muitiport card and have 2 sata
> drives I am testing with.
>
> One drive works fine. But two drives it is a bit of a guess which one
> will come in as /dev/sda (the mSD card is /dev/mmcblk0). And only one drive
> is visible. Or at least gparted is only seeing one.
>
> From messages back last fall? I had that this board would let me use
> multiple sata drives, so there seems to be something I am missing.
>
> Right now each item has its own power supply: Cubietruck, Multiport card,
> Drive1, and Drive2. So it is not a power issue (or shouldn't be).
>
>
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