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Date:      Wed, 02 Feb 2011 21:05:56 +0100
From:      Harald Schmalzbauer <h.schmalzbauer@omnilan.de>
To:        FreeBSD Stable <freebsd-stable@freebsd.org>
Subject:   ahci.ko and IXP700/800 -> no disk found
Message-ID:  <4D49B924.2020809@omnilan.de>

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Hello,

there was some discussion one year ago:
http://lists.freebsd.org/pipermail/freebsd-current/2010-January/015180.ht=
ml

I'm not seeing exactly the same problem, no "timeout" message, but with
ahci.ko loaded, no disk gets recognized.

Staying with ataahci it works fine.

System is 8.2-RC3-amd64.

Here's some info about the SATA chip:
atapci0@pci0:0:17:0:	class=3D0x010601 card=3D0x1609103c chip=3D0x43911002=

rev=3D0x40 hdr=3D0x00
    vendor	=3D 'ATI Technologies Inc. / Advanced Micro Devices, Inc.'
    device	=3D 'SB700 SATA Controller [AHCI mode]'
    class	=3D mass storage
    subclass	=3D SATA
    bar    [10] =3D type I/O Port, range 32, base 0xd000, size  8, enable=
d
    bar    [14] =3D type I/O Port, range 32, base 0xc000, size  4, enable=
d
    bar    [18] =3D type I/O Port, range 32, base 0xb000, size  8, enable=
d
    bar    [1c] =3D type I/O Port, range 32, base 0xa000, size  4, enable=
d
    bar    [20] =3D type I/O Port, range 32, base 0x9000, size 16, enable=
d
    bar    [24] =3D type Memory, range 32, base 0xfdfffc00, size 1024, en=
abled
    cap  05[50]	=3D MSI supports 4 messages, 64 bit
    cap  12[70]	=3D SATA Index-Data Pair
    cap  13[a4]	=3D PCI Advanced Features: FLR TP

Disabling MSI doesn't change anything.

Thanks for any help,

-Harry


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