1 files changed, 106 insertions, 0 deletions
diff --git a/drivers/rapidio/switches/tsi57x.c b/drivers/rapidio/switches/tsi57x.c
new file mode 100644
index 000000000000..5ad7880787c9
--- /dev/null
+++ b/drivers/rapidio/switches/tsi57x.c
@@ -0,0 +1,106 @@
+/*
+ * RapidIO Tsi57x switch family support
+ *
+ * Copyright 2009 Integrated Device Technology, Inc.
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * 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;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/rio_ids.h>
+#include <linux/delay.h>
+#include "../rio.h"
+
+/* Global (broadcast) route registers */
+#define SPBC_ROUTE_CFG_DESTID	0x10070
+#define SPBC_ROUTE_CFG_PORT	0x10074
+
+/* Per port route registers */
+#define SPP_ROUTE_CFG_DESTID(n)	(0x11070 + 0x100*n)
+#define SPP_ROUTE_CFG_PORT(n)	(0x11074 + 0x100*n)
+
+static int
+tsi57x_route_add_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+		       u16 table, u16 route_destid, u8 route_port)
+{
+	if (table == RIO_GLOBAL_TABLE) {
+		rio_mport_write_config_32(mport, destid, hopcount,
+					  SPBC_ROUTE_CFG_DESTID, route_destid);
+		rio_mport_write_config_32(mport, destid, hopcount,
+					  SPBC_ROUTE_CFG_PORT, route_port);
+	} else {
+		rio_mport_write_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_DESTID(table), route_destid);
+		rio_mport_write_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_PORT(table), route_port);
+	}
+
+	udelay(10);
+
+	return 0;
+}
+
+static int
+tsi57x_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
+		       u16 table, u16 route_destid, u8 *route_port)
+{
+	int ret = 0;
+	u32 result;
+
+	if (table == RIO_GLOBAL_TABLE) {
+		/* Use local RT of the ingress port to avoid possible
+		   race condition */
+		rio_mport_read_config_32(mport, destid, hopcount,
+			RIO_SWP_INFO_CAR, &result);
+		table = (result & RIO_SWP_INFO_PORT_NUM_MASK);
+	}
+
+	rio_mport_write_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_DESTID(table), route_destid);
+	rio_mport_read_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_PORT(table), &result);
+
+	*route_port = (u8)result;
+	if (*route_port > 15)
+		ret = -1;
+
+	return ret;
+}
+
+static int
+tsi57x_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
+		       u16 table)
+{
+	u32 route_idx;
+	u32 lut_size;
+
+	lut_size = (mport->sys_size) ? 0x1ff : 0xff;
+
+	if (table == RIO_GLOBAL_TABLE) {
+		rio_mport_write_config_32(mport, destid, hopcount,
+					  SPBC_ROUTE_CFG_DESTID, 0x80000000);
+		for (route_idx = 0; route_idx <= lut_size; route_idx++)
+			rio_mport_write_config_32(mport, destid, hopcount,
+						  SPBC_ROUTE_CFG_PORT,
+						  RIO_INVALID_ROUTE);
+	} else {
+		rio_mport_write_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_DESTID(table), 0x80000000);
+		for (route_idx = 0; route_idx <= lut_size; route_idx++)
+			rio_mport_write_config_32(mport, destid, hopcount,
+				SPP_ROUTE_CFG_PORT(table) , RIO_INVALID_ROUTE);
+	}
+
+	return 0;
+}
+
+DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI572, tsi57x_route_add_entry, tsi57x_route_get_entry, tsi57x_route_clr_table);
+DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI574, tsi57x_route_add_entry, tsi57x_route_get_entry, tsi57x_route_clr_table);
+DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI577, tsi57x_route_add_entry, tsi57x_route_get_entry, tsi57x_route_clr_table);
+DECLARE_RIO_ROUTE_OPS(RIO_VID_TUNDRA, RIO_DID_TSI578, tsi57x_route_add_entry, tsi57x_route_get_entry, tsi57x_route_clr_table);