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diff --git a/include/asm-arm/arch-at91/at91_pit.h b/include/asm-arm/arch-at91/at91_pit.h
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+/*
+ * [origin: Linux kernel include/asm-arm/arch-at91/at91_pit.h]
+ *
+ * Copyright (C) 2007 Andrew Victor
+ * Copyright (C) 2007 Atmel Corporation.
+ *
+ * Periodic Interval Timer (PIT) - System peripherals regsters.
+ * Based on AT91SAM9261 datasheet revision D.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91_PIT_H
+#define AT91_PIT_H
+
+#define AT91_PIT_MR (AT91_PIT + 0x00) /* Mode Register */
+#define AT91_PIT_PITIEN (1 << 25) /* Timer Interrupt Enable */
+#define AT91_PIT_PITEN (1 << 24) /* Timer Enabled */
+#define AT91_PIT_PIV (0xfffff) /* Periodic Interval Value */
+
+#define AT91_PIT_SR (AT91_PIT + 0x04) /* Status Register */
+#define AT91_PIT_PITS (1 << 0) /* Timer Status */
+
+#define AT91_PIT_PIVR (AT91_PIT + 0x08) /* Periodic Interval Value Register */
+#define AT91_PIT_PIIR (AT91_PIT + 0x0c) /* Periodic Interval Image Register */
+#define AT91_PIT_PICNT (0xfff << 20) /* Interval Counter */
+#define AT91_PIT_CPIV (0xfffff) /* Inverval Value */
+
+#endif