From c200853a4bd118af5dedc689173656c651dbef4e Mon Sep 17 00:00:00 2001
From: Alexander Motin <mav@FreeBSD.org>
Date: Sat, 8 May 2010 16:10:54 +0000
Subject: [PATCH] MFC r207511: Enable PCI busmastering explicitly to be sure.

---
 sys/dev/ahci/ahci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sys/dev/ahci/ahci.c b/sys/dev/ahci/ahci.c
index 22c9586f5df..a275019ba36 100644
--- a/sys/dev/ahci/ahci.c
+++ b/sys/dev/ahci/ahci.c
@@ -340,6 +340,7 @@ ahci_attach(device_t dev)
 		rman_fini(&ctlr->sc_iomem);
 		return (error);
 	}
+	pci_enable_busmaster(dev);
 	/* Reset controller */
 	if ((error = ahci_ctlr_reset(dev)) != 0) {
 		bus_release_resource(dev, SYS_RES_MEMORY, ctlr->r_rid, ctlr->r_mem);