linux-imx

/*

 * RTC driver for Maxim MAX8925

 *

 * Copyright (C) 2009-2010 Marvell International Ltd.

 *  Haojian Zhuang <haojian.zhuang@marvell.com>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

​

#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/slab.h>

#include <linux/rtc.h>

#include <linux/platform_device.h>

#include <linux/mfd/max8925.h>

​

enum {

    RTC_SEC = 0,

    RTC_MIN,

    RTC_HOUR,

    RTC_WEEKDAY,

    RTC_DATE,

    RTC_MONTH,

    RTC_YEAR1,

    RTC_YEAR2,

};

​

#define MAX8925_RTC_SEC         0x00

#define MAX8925_RTC_MIN         0x01

#define MAX8925_RTC_HOUR        0x02

#define MAX8925_RTC_WEEKDAY     0x03

#define MAX8925_RTC_DATE        0x04

#define MAX8925_RTC_MONTH       0x05

#define MAX8925_RTC_YEAR1       0x06

#define MAX8925_RTC_YEAR2       0x07

#define MAX8925_ALARM0_SEC      0x08

#define MAX8925_ALARM0_MIN      0x09

#define MAX8925_ALARM0_HOUR     0x0a

#define MAX8925_ALARM0_WEEKDAY      0x0b

#define MAX8925_ALARM0_DATE     0x0c

#define MAX8925_ALARM0_MON      0x0d

#define MAX8925_ALARM0_YEAR1        0x0e

#define MAX8925_ALARM0_YEAR2        0x0f

#define MAX8925_ALARM1_SEC      0x10

#define MAX8925_ALARM1_MIN      0x11

#define MAX8925_ALARM1_HOUR     0x12

#define MAX8925_ALARM1_WEEKDAY      0x13

#define MAX8925_ALARM1_DATE     0x14

#define MAX8925_ALARM1_MON      0x15

#define MAX8925_ALARM1_YEAR1        0x16

#define MAX8925_ALARM1_YEAR2        0x17

#define MAX8925_RTC_CNTL        0x1b

#define MAX8925_RTC_STATUS      0x20

​

#define TIME_NUM            8

#define ALARM_1SEC          (1 << 7)

#define HOUR_12             (1 << 7)

#define HOUR_AM_PM          (1 << 5)

#define ALARM0_IRQ          (1 << 3)

#define ALARM1_IRQ          (1 << 2)

#define ALARM0_STATUS           (1 << 2)