1 files changed, 50 insertions, 0 deletions

diff --git a/include/linux/m41t00.h b/include/linux/m41t00.h
new file mode 100644
index 000000000000..b423360ca38e
--- /dev/null
+++ b/include/linux/m41t00.h
@@ -0,0 +1,50 @@
+/*
+ * Definitions for the ST M41T00 family of i2c rtc chips.
+ *
+ * Author: Mark A. Greer <mgreer@mvista.com>
+ *
+ * 2005, 2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef _M41T00_H
+#define _M41T00_H
+
+#define M41T00_DRV_NAME         "m41t00"
+#define M41T00_I2C_ADDR         0x68
+
+#define M41T00_TYPE_M41T00      0
+#define M41T00_TYPE_M41T81      81
+#define M41T00_TYPE_M41T85      85
+
+struct m41t00_platform_data {
+        u8      type;
+        u8      i2c_addr;
+        u8      sqw_freq;
+};
+
+/* SQW output disabled, this is default value by power on */
+#define M41T00_SQW_DISABLE      (0)
+
+#define M41T00_SQW_32KHZ        (1<<4)          /* 32.768 KHz */
+#define M41T00_SQW_8KHZ         (2<<4)          /* 8.192 KHz */
+#define M41T00_SQW_4KHZ         (3<<4)          /* 4.096 KHz */
+#define M41T00_SQW_2KHZ         (4<<4)          /* 2.048 KHz */
+#define M41T00_SQW_1KHZ         (5<<4)          /* 1.024 KHz */
+#define M41T00_SQW_512HZ        (6<<4)          /* 512 Hz */
+#define M41T00_SQW_256HZ        (7<<4)          /* 256 Hz */
+#define M41T00_SQW_128HZ        (8<<4)          /* 128 Hz */
+#define M41T00_SQW_64HZ         (9<<4)          /* 64 Hz */
+#define M41T00_SQW_32HZ         (10<<4)         /* 32 Hz */
+#define M41T00_SQW_16HZ         (11<<4)         /* 16 Hz */
+#define M41T00_SQW_8HZ          (12<<4)         /* 8 Hz */
+#define M41T00_SQW_4HZ          (13<<4)         /* 4 Hz */
+#define M41T00_SQW_2HZ          (14<<4)         /* 2 Hz */
+#define M41T00_SQW_1HZ          (15<<4)         /* 1 Hz */
+
+extern ulong m41t00_get_rtc_time(void);
+extern int m41t00_set_rtc_time(ulong nowtime);
+
+#endif /* _M41T00_H */