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/*
* 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 */