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-rw-r--r--sys/arch/luna88k/dev/mb89352.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/arch/luna88k/dev/mb89352.c b/sys/arch/luna88k/dev/mb89352.c
index 46195225a8a..deba9ca1505 100644
--- a/sys/arch/luna88k/dev/mb89352.c
+++ b/sys/arch/luna88k/dev/mb89352.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: mb89352.c,v 1.19 2014/06/07 11:55:35 aoyama Exp $ */
+/* $OpenBSD: mb89352.c,v 1.20 2014/10/05 11:46:18 aoyama Exp $ */
/* $NetBSD: mb89352.c,v 1.5 2000/03/23 07:01:31 thorpej Exp $ */
/* NecBSD: mb89352.c,v 1.4 1998/03/14 07:31:20 kmatsuda Exp */
@@ -1534,6 +1534,14 @@ spc_intr(void *arg)
int n;
/*
+ * On LUNA-88K2, 2 spc(4)'s share the level 3 interrupt.
+ * So, first, check if this deivce needs to process this interrupt.
+ */
+ ints = bus_space_read_1(iot, ioh, INTS);
+ if (ints == 0) /* No interrupt event on this device */
+ return 0;
+
+ /*
* Disable interrupt.
*/
bus_space_write_1(iot, ioh, SCTL,