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    SubjectRe: [PATCH] libata: Add MMIO support to pata_sil680
    Date
    Hi,
    This change causes attached drives to no longer be detected and
    function on the PowerPC Buffalo Linkstation machines:

    <7>pata_sil680 0000:00:0c.0: version 0.4.8
    <6>sil680: 133MHz clock.
    <6>scsi0 : pata_sil680
    <6>scsi1 : pata_sil680
    <6>ata1: PATA max UDMA/133 irq 18
    <6>ata2: PATA max UDMA/133 irq 18

    If I roll back this driver to before this change with 2.6.24.2 it works:

    <7>pata_sil680 0000:00:0c.0: version 0.4.7
    <6>sil680: 133MHz clock.
    <6>scsi0 : pata_sil680
    <6>scsi1 : pata_sil680
    <6>ata1: PATA max UDMA/133 cmd 0xbffed0 ctl 0xbffed8 bmdma 0xbffef0
    irq 18
    <6>ata2: PATA max UDMA/133 cmd 0xbffee0 ctl 0xbffee8 bmdma 0xbffef8
    irq 18
    <6>ata1.00: ATA-6: WDC WD3200JB-00KFA0, 08.05J08, max UDMA/100
    <6>ata1.00: 625142448 sectors, multi 0: LBA48
    <6>ata1.00: configured for UDMA/100
    <5>scsi 0:0:0:0: Direct-Access ATA WDC WD3200JB-00K 08.0 PQ:
    0 ANSI: 5
    <5>sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
    <5>sd 0:0:0:0: [sda] Write Protect is off
    <7>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
    <5>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled,
    doesn't support DPO or FUA
    <5>sd 0:0:0:0: [sda] 625142448 512-byte hardware sectors (320073 MB)
    <5>sd 0:0:0:0: [sda] Write Protect is off
    <7>sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
    <5>sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled,
    doesn't support DPO or FUA
    <6> sda: sda1 sda2 sda3 sda4
    <5>sd 0:0:0:0: [sda] Attached SCSI disk
    <5>sd 0:0:0:0: Attached scsi generic sg0 type 0

    I have ensured the other sil680 driver is not enabled!


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