PATA DVD access with Marvell 88SE61x1 and 2.6.25.6

A few months ago I changed my motherboard to an MSI P35 NEO2-FR, which
handles the PATA board with a Marvell 88SE6121 (according to lspci) or
88SE6111 (according to
<http://en.wikipedia.org/wiki/List_of_Marvell_Technology_Group_chipsets#MSI_motherboards_that_use_Marvell_88SE6111_chipset>).

Apparently since that time I cannot access the DVD drive that's
connected via PATA; the drive has not shown up in any kernel logs
since that time.

So I'm wondering how to deal with this. lspci -v says:

03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II Controller (rev b2) (prog-if 8f [Master SecP SecO PriP PriO])
Subsystem: Marvell Technology Group Ltd. 88SE6121 SATA II Controller
Flags: bus master, fast devsel, latency 0, IRQ 16
[...]
Kernel driver in use: ahci
Kernel modules: ide-pci-generic, pata_marvell, ata_generic

This does not change if I modprobe pata_marvell, and nothing happens
in the output of dmesg.

Reading
<https://kerneltrap.org/mailarchive/git-commits-head/2008/9/8/3234554>,
it appears that one could possibly fix it by either installing a
kernel that includes the patch shown in the message, or possibly by
rearranging the order of ahci and pata_marvell in modprobe.conf
(probably in the initrd). However, neither of these modules appears
in my modprobe.d or modules.conf (and AFAIK the initrd stuff is
generated from these files).

So should I just upgrade to 2.6.27 (and will it help?) or is there an
easier way to get my DVD to work?

- anton
--
M. Anton Ertl Some things have to be seen to be believed
anton.DeleteThis@mips.complang.tuwien.ac.at Most things have to be believed to be seen
http://www.complang.tuwien.ac.at/anton/home.html

On Sat, 18 Oct 2008 20:50:52 +0000, Anton Ertl rearranged some electrons
to say:

> A few months ago I changed my motherboard to an MSI P35 NEO2-FR, which
> handles the PATA board with a Marvell 88SE6121 (according to lspci) or
> 88SE6111 (according to
> <http://en.wikipedia.org/wiki/
List_of_Marvell_Technology_Group_chipsets#MSI_motherboards_that_use_Marvell_88SE6111_chipset>).
>
> Apparently since that time I cannot access the DVD drive that's
> connected via PATA; the drive has not shown up in any kernel logs since
> that time.
>
> So I'm wondering how to deal with this. lspci -v says:
>
> 03:00.0 IDE interface: Marvell Technology Group Ltd. 88SE6121 SATA II
> Controller (rev b2) (prog-if 8f [Master SecP SecO PriP PriO])
> Subsystem: Marvell Technology Group Ltd. 88SE6121 SATA II
> Controller Flags: bus master, fast devsel, latency 0, IRQ 16
> [...]
> Kernel driver in use: ahci
> Kernel modules: ide-pci-generic, pata_marvell, ata_generic
>
> This does not change if I modprobe pata_marvell, and nothing happens in
> the output of dmesg.
>
> Reading
> <https://kerneltrap.org/mailarchive/git-commits-head/2008/9/8/3234554>,
> it appears that one could possibly fix it by either installing a kernel
> that includes the patch shown in the message, or possibly by rearranging
> the order of ahci and pata_marvell in modprobe.conf (probably in the
> initrd). However, neither of these modules appears in my modprobe.d or
> modules.conf (and AFAIK the initrd stuff is generated from these files).
>
> So should I just upgrade to 2.6.27 (and will it help?) or is there an
> easier way to get my DVD to work?
>
> - anton

Are you sure the ribbon cable is properly connected?