sata_mv EH fixes.
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@xxxxxxxxx>
--- old/drivers/ata/sata_mv.c 2008-01-24 10:40:11.000000000 -0500
+++ new/drivers/ata/sata_mv.c 2008-01-24 11:11:26.000000000 -0500
@@ -1437,6 +1437,7 @@
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 @@
}
/* 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;
-
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