at91: add defines for reset type

Signed-off-by: Roger Meier <r.meier@siemens.com>
Acked-by: Bo Shen <voice.shen@atmel.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>

arch/arm/include/asm/arch-at91/at91_rstc.h

@@ -38,4 +38,11 @@ typedef struct at91_rstc {
 
 #define AT91_RSTC_SR_NRSTL	0x00010000
 
+#define AT91_RSTC_RSTTYP		(7 << 8)	/* Reset Type */
+#define AT91_RSTC_RSTTYP_GENERAL	(0 << 8)
+#define AT91_RSTC_RSTTYP_WAKEUP	(1 << 8)
+#define AT91_RSTC_RSTTYP_WATCHDOG	(2 << 8)
+#define AT91_RSTC_RSTTYP_SOFTWARE	(3 << 8)
+#define AT91_RSTC_RSTTYP_USER		(4 << 8)
+
 #endif