Index: dev/ata/ata-dma.c
===================================================================
--- dev/ata/ata-dma.c	(revision 254943)
+++ dev/ata/ata-dma.c	(working copy)
@@ -151,7 +151,7 @@
     struct ata_dc_cb_args *dcba = (struct ata_dc_cb_args *)xsc;
 
     if (!(dcba->error = error))
-	dcba->maddr = segs[0].ds_addr;
+	dcba->maddr = htole32(segs[0].ds_addr);
 }
 
 static void