Move the disabling of interrupts right before the allocation of the

resource. Avoids useless interrupts occurring between the allocation
of the interrupt resource and the final initialisation of the
kernel. Cause of these interrupts is unknown (a resuming device?).

1 files changed, 16 insertions, 1 deletions

diff --git a/sys/pci/uhci_pci.c b/sys/pci/uhci_pci.c
index 4bddf8b..c00a6bf 100644
--- a/sys/pci/uhci_pci.c
+++ b/sys/pci/uhci_pci.c
@@ -1,4 +1,4 @@
-/*	FreeBSD $Id: uhci_pci.c,v 1.5 1999/04/11 14:24:20 n_hibma Exp $ */
+/*	FreeBSD $Id: uhci_pci.c,v 1.6 1999/04/16 21:22:53 peter Exp $ */
 
 /*
  * Copyright (c) 1998 The NetBSD Foundation, Inc.
@@ -37,6 +37,16 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
+/* Universal Host Controller Interface
+ *
+ * UHCI spec: http://www.intel.com/
+ */
+
+/* The low level controller code for UHCI has been split into
+ * PCI probes and UHCI specific code. This was done to facilitate the
+ * sharing of code between *BSD's
+ */
+
 #include "opt_bus.h"
 
 #include <sys/param.h>
@@ -47,6 +57,9 @@
 #include <sys/device.h>
 #include <sys/proc.h>
 #include <sys/queue.h>
+#if defined(__FreeBSD__)
+#include <machine/bus_pio.h>
+#endif
 #include <machine/bus.h>
 #include <sys/rman.h>
 #include <machine/resource.h>
@@ -135,6 +148,8 @@ uhci_pci_attach(device_t dev)
 	sc->iot = rman_get_bustag(res);
 	sc->ioh = rman_get_bushandle(res);
 
+	bus_space_write_2(sc->iot, sc->ioh, UHCI_INTR, 0);	/* disable interrupts */
+
 	rid = 0;
 	res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
 				 RF_SHAREABLE | RF_ACTIVE);