#define AT91_RTT (0xfffffd20 - AT91_BASE_SYS)
#define AT91_PIT (0xfffffd30 - AT91_BASE_SYS)
#define AT91_WDT (0xfffffd40 - AT91_BASE_SYS)
-#define AT91_GPBR (0xfffffd50 - AT91_BASE_SYS)
+#define AT91_GPBR (cpu_is_at91cap9_revB() ? \
+ (0xfffffd50 - AT91_BASE_SYS) : \
+ (0xfffffd60 - AT91_BASE_SYS))
#define AT91_USART0 AT91CAP9_BASE_US0
#define AT91_USART1 AT91CAP9_BASE_US1