[ARM] 3949/2: AT91: SAM9 timer driver

Add support for the timer on the Atmel AT91SAM9261 and AT91SAM9260
processors.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 29 insertions, 0 deletions

diff --git a/include/asm-arm/arch-at91rm9200/at91_pit.h b/include/asm-arm/arch-at91rm9200/at91_pit.h
new file mode 100644
index 000000000000..4a30d009c588
--- /dev/null
+++ b/include/asm-arm/arch-at91rm9200/at91_pit.h
@@ -0,0 +1,29 @@
+/*
+ * include/asm-arm/arch-at91rm9200/at91_pit.h
+ *
+ * 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