From 6e6b04c407478ae9c68a0ab4fd898403d7c35c94 Mon Sep 17 00:00:00 2001
From: sos <sos@FreeBSD.org>
Date: Tue, 12 Sep 2006 22:06:39 +0000
Subject: Busmaster DMA address fix in VIA 6421 case.

---
 sys/dev/ata/ata-chipset.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/ata/ata-chipset.c b/sys/dev/ata/ata-chipset.c
index 0caeb8a..feaa0fc 100644
--- a/sys/dev/ata/ata-chipset.c
+++ b/sys/dev/ata/ata-chipset.c
@@ -4869,7 +4869,7 @@ ata_via_allocate(device_t dev)
 	ata_default_registers(dev);
 	for (i = ATA_BMCMD_PORT; i <= ATA_BMDTP_PORT; i++) {
 	    ch->r_io[i].res = ctlr->r_res1;
-	    ch->r_io[i].offset = i - ATA_BMCMD_PORT;
+	    ch->r_io[i].offset = (i - ATA_BMCMD_PORT)+(ch->unit * ATA_BMIOSIZE);
 	}
 	ata_pci_hw(dev);
     }
-- 
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