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DateWed, 4 Feb 2009 10:45:56 -0800
FromGreg KH <>
Subject[patch 04/41] sata_mv: fix 8-port timeouts on 508x/6081 chips
2.6.27-stable review patch.  If anyone has any objections, please let us know.

------------------
From: Mark Lord <liml@rtr.ca>

commit b0bccb18bc523d1d5060d25958f12438062829a9 upstream.

Fix a longstanding bug for the 8-port Marvell Sata controllers (508x/6081),
where accesses to the upper 4 ports would cause lost-interrupts / timeouts
for the lower 4-ports. With this patch, the 6081 boards should finally be
reliable enough for mainstream use with Linux.

Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/ata/sata_mv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -883,7 +883,7 @@ static void mv_start_dma(struct ata_port
struct mv_host_priv *hpriv = ap->host->private_data;
int hardport = mv_hardport_from_port(ap->port_no);
void __iomem *hc_mmio = mv_hc_base_from_port(
- mv_host_base(ap->host), hardport);
+ mv_host_base(ap->host), ap->port_no);
u32 hc_irq_cause, ipending;

/* clear EDMA event indicators, if any */


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