rapidio: use default route value for CPS switches

Fix to use correct default value for routing table entries.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/rapidio/switches/idtcps.c

@@ -15,6 +15,7 @@
 #include <linux/rio_ids.h>
 #include "../rio.h"
 
+#define CPS_DEFAULT_ROUTE	0xde
 #define CPS_NO_ROUTE		0xdf
 
 #define IDTCPS_RIO_DOMAIN 0xf20020
@@ -53,9 +54,10 @@ idtcps_route_get_entry(struct rio_mport *mport, u16 destid, u8 hopcount,
 		rio_mport_read_config_32(mport, destid, hopcount,
 				RIO_STD_RTE_CONF_PORT_SEL_CSR, &result);
 
-		if (CPS_NO_ROUTE == (u8)result)
-			result = RIO_INVALID_ROUTE;
-
+		if (CPS_DEFAULT_ROUTE == (u8)result ||
+		    CPS_NO_ROUTE == (u8)result)
+			*route_port = RIO_INVALID_ROUTE;
+		else
 			*route_port = (u8)result;
 	}
 
@@ -74,9 +76,9 @@ idtcps_route_clr_table(struct rio_mport *mport, u16 destid, u8 hopcount,
 				RIO_STD_RTE_CONF_DESTID_SEL_CSR, i);
 			rio_mport_write_config_32(mport, destid, hopcount,
 				RIO_STD_RTE_CONF_PORT_SEL_CSR,
-				(RIO_INVALID_ROUTE << 24) |
-				(RIO_INVALID_ROUTE << 16) |
-				(RIO_INVALID_ROUTE << 8) | RIO_INVALID_ROUTE);
+				(CPS_DEFAULT_ROUTE << 24) |
+				(CPS_DEFAULT_ROUTE << 16) |
+				(CPS_DEFAULT_ROUTE << 8) | CPS_DEFAULT_ROUTE);
 			i += 4;
 		}
 	}