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sata_mv ncq EH fixes

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A hard reset is necessary after hotplug events.
Only clear the error irq bits that were set on entry.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Mark Lord 2008-01-26 18:28:23 -05:00 committed by Jeff Garzik
parent 24e1c13c93
commit 3606a38069
1 changed files with 2 additions and 1 deletions
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3
drivers/ata/sata_mv.c
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@ -1437,6 +1437,7 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
ata_ehi_hotplugged(ehi);
ata_ehi_push_desc(ehi, edma_err_cause & EDMA_ERR_DEV_DCON ?
"dev disconnect" : "dev connect");
action |= ATA_EH_HARDRESET;
}
if (IS_GEN_I(hpriv)) {
@ -1465,7 +1466,7 @@ static void mv_err_intr(struct ata_port *ap, struct ata_queued_cmd *qc)
}
/* Clear EDMA now that SERR cleanup done */
writelfl(0, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
writelfl(~edma_err_cause, port_mmio + EDMA_ERR_IRQ_CAUSE_OFS);
if (!err_mask) {
err_mask = AC_ERR_OTHER;