--- /dev/null
+/*
+ * [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.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef AT91_PIT_H
+#define AT91_PIT_H
+
+typedef struct at91_pit {
+ u32 mr; /* 0x00 Mode Register */
+ u32 sr; /* 0x04 Status Register */
+ u32 pivr; /* 0x08 Periodic Interval Value Register */
+ u32 piir; /* 0x0C Periodic Interval Image Register */
+} at91_pit_t;
+
+#define AT91_PIT_MR_IEN 0x02000000
+#define AT91_PIT_MR_EN 0x01000000
+#define AT91_PIT_MR_PIV_MASK(x) (x & 0x000fffff)
+#define AT91_PIT_MR_PIV(x) (x & AT91_PIT_MR_PIV_MASK)
+
+#endif