#elif defined(CONFIG_ARCH_AT91SAM9G20)
+#if defined(CONFIG_MACH_USB_A9G20)
+#define AT91SAM9_MASTER_CLOCK 133000000
+#else
#define AT91SAM9_MASTER_CLOCK 132096000
+#endif
+
#define CLOCK_TICK_RATE (AT91SAM9_MASTER_CLOCK/16)
#elif defined(CONFIG_ARCH_AT91SAM9G45)