[RAPIDIO] Change RapidIO doorbell source and target ID field to 16-bit

Change RapidIO doorbell source and target ID field to 16-bit for
support large system size, which max rio devid is 65535.

Signed-off-by: Zhang Wei <wei.zhang@freescale.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/sysdev/fsl_rio.c

@@ -64,13 +64,13 @@
 #define DOORBELL_DSR_TE		0x00000080
 #define DOORBELL_DSR_QFI	0x00000010
 #define DOORBELL_DSR_DIQI	0x00000001
-#define DOORBELL_TID_OFFSET	0x03
-#define DOORBELL_SID_OFFSET	0x05
+#define DOORBELL_TID_OFFSET	0x02
+#define DOORBELL_SID_OFFSET	0x04
 #define DOORBELL_INFO_OFFSET	0x06
 
 #define DOORBELL_MESSAGE_SIZE	0x08
-#define DBELL_SID(x)		(*(u8 *)(x + DOORBELL_SID_OFFSET))
-#define DBELL_TID(x)		(*(u8 *)(x + DOORBELL_TID_OFFSET))
+#define DBELL_SID(x)		(*(u16 *)(x + DOORBELL_SID_OFFSET))
+#define DBELL_TID(x)		(*(u16 *)(x + DOORBELL_TID_OFFSET))
 #define DBELL_INF(x)		(*(u16 *)(x + DOORBELL_INFO_OFFSET))
 
 struct rio_atmu_regs {