1 files changed, 50 insertions, 0 deletions
diff --git a/src/superio/common/conf_mode.c b/src/superio/common/conf_mode.c
new file mode 100644
index 0000000000..40583ffc49
--- /dev/null
+++ b/src/superio/common/conf_mode.c
@@ -0,0 +1,50 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2013 Nico Huber <nico.h@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <arch/io.h>
+#include <device/device.h>
+#include <superio/conf_mode.h>
+
+/* Common enter/exit implementations */
+
+void pnp_enter_conf_mode_55(device_t dev)
+{
+	outb(0x55, dev->path.pnp.port);
+}
+
+void pnp_enter_conf_mode_8787(device_t dev)
+{
+	outb(0x87, dev->path.pnp.port);
+	outb(0x87, dev->path.pnp.port);
+}
+
+void pnp_exit_conf_mode_aa(device_t dev)
+{
+	outb(0xaa, dev->path.pnp.port);
+}
+
+const struct pnp_mode_ops pnp_conf_mode_55_aa = {
+	.enter_conf_mode = pnp_enter_conf_mode_55,
+	.exit_conf_mode  = pnp_exit_conf_mode_aa,
+};
+
+const struct pnp_mode_ops pnp_conf_mode_8787_aa = {
+	.enter_conf_mode = pnp_enter_conf_mode_8787,
+	.exit_conf_mode  = pnp_exit_conf_mode_aa,
+};