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Add fix for SiI3114 and SiI3512 chips bug, which caused sending R_ERR in

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response to DMA activate FIS under certain circumstances. This is
recommended fix from chip datasheet. If triggered, this bug most likely
cause write command timeout.

MFC after:	2 weeks
This commit is contained in:
Alexander Motin 2010-09-02 12:32:29 +00:00
parent a250a687f7
commit a6c48c7c72
1 changed files with 8 additions and 0 deletions
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8
sys/dev/ata/chipsets/ata-siliconimage.c
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@ -365,7 +365,15 @@ ata_sii_status(device_t dev)
static void
ata_sii_reset(device_t dev)
{
struct ata_pci_controller *ctlr = device_get_softc(device_get_parent(dev));
struct ata_channel *ch = device_get_softc(dev);
int offset = ((ch->unit & 1) << 7) + ((ch->unit & 2) << 8);
uint32_t val;
/* Apply R_ERR on DMA activate FIS errata workaround. */
val = ATA_INL(ctlr->r_res2, 0x14c + offset);
if ((val & 0x3) == 0x1)
ATA_OUTL(ctlr->r_res2, 0x14c + offset, val & ~0x3);
if (ata_sata_phy_reset(dev, -1, 1))
ata_generic_reset(dev);