Re: AHCI on ICH7

On 01/12/11 05:50, Anton Yuzhaninov wrote:
> Is it possible to get AHCI working on this controller:
> 
> atapci1_at_pci0:0:31:2:    class=0x01018f card=0x72101462 chip=0x27c08086
> rev=0x01 hdr=0x00
>     vendor     = 'Intel Corporation'
>     device     = '82801GB/GR/GH (ICH7 Family) Serial ATA Storage
> Controller'
>     class      = mass storage
>     subclass   = ATA
>     bar   [10] = type I/O Port, range 32, base 0xe880, size  8, enabled
>     bar   [14] = type I/O Port, range 32, base 0xe800, size  4, enabled
>     bar   [18] = type I/O Port, range 32, base 0xe480, size  8, enabled
>     bar   [1c] = type I/O Port, range 32, base 0xe400, size  4, enabled
>     bar   [20] = type I/O Port, range 32, base 0xe080, size 16, enabled
>     cap 01[70] = powerspec 2  supports D0 D3  current D0
> 
> BIOS show that AHCI 1.0 supported.
> 
> I tried this patch with no success:
> 
> --- sys/dev/ahci/ahci.c (revision 217301)
> +++ sys/dev/ahci/ahci.c (working copy)
> _at__at_ -129,6 +129,7 _at__at_
>         {0x26838086, 0x00, "Intel ESB2",        0},
>         {0x27c18086, 0x00, "Intel ICH7",        0},
>         {0x27c38086, 0x00, "Intel ICH7",        0},
> +       {0x27c08086, 0x00, "Intel ICH7",        0},
>         {0x27c58086, 0x00, "Intel ICH7M",       0},
>         {0x27c68086, 0x00, "Intel ICH7M",       0},
>         {0x28218086, 0x00, "Intel ICH8",        0},

Since this series is also supported in the ata-intel driver ..

     { ATA_I82801GB,     0,          0, 1, ATA_UDMA5, "ICH7" },
     { ATA_I82801GB_S1,  0,          0, 0, ATA_SA300, "ICH7" },
     { ATA_I82801GB_R1,  0,          0, 0, ATA_SA300, "ICH7" },
     { ATA_I82801GB_AH,  0, INTEL_AHCI, 0, ATA_SA300, "ICH7" },
     { ATA_I82801GBM_S1, 0,          0, 0, ATA_SA150, "ICH7M" },
     { ATA_I82801GBM_R1, 0,          0, 0, ATA_SA150, "ICH7M" },
     { ATA_I82801GBM_AH, 0, INTEL_AHCI, 0, ATA_SA150, "ICH7M" },

 .. and it seems that PCIR_BAR(5) is already set as I/O, you could try
adding the INTEL_AHCI attribute to the entry for "ATA_I82801GB_S1",
which matches your chip-id and see what happens.

I have not tried this - please make sure you have a full backup first!

	imb