From 3bd0a70ee9cc30ae81b39cb5ecad0fa7bcb4675b Mon Sep 17 00:00:00 2001 From: Mark Lord Date: Wed, 18 Jun 2008 12:11:16 -0400 Subject: [PATCH] sata_mv: enable async_notify for 60x1 Rev.C0 and higher The early chipsets cannot safely handle Async Notification (AN), but 6041/6081 chip revision "C0" (and newer) can handle it. So allow AN for "C0" and higher. This enables use of hotplug on PMP ports for the 6041/6081 PCI Rev.9 chips. Signed-off-by: Mark Lord Signed-off-by: Jeff Garzik --- drivers/ata/sata_mv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 60391e9a84..75fde48e1a 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -1322,6 +1322,9 @@ static int mv_port_start(struct ata_port *ap) goto out_port_free_dma_mem; memset(pp->crpb, 0, MV_CRPB_Q_SZ); + /* 6041/6081 Rev. "C0" (and newer) are okay with async notify */ + if (hpriv->hp_flags & MV_HP_ERRATA_60X1C0) + ap->flags |= ATA_FLAG_AN; /* * For GEN_I, there's no NCQ, so we only allocate a single sg_tbl. * For later hardware, we need one unique sg_tbl per NCQ tag. -- 2.39.5