linux-imx

/*

 * drivers/rtc/rtc-pcf85363.c

 *

 * Driver for NXP PCF85363 real-time clock.

 *

 * Copyright (C) 2017 Eric Nelson

 *

 * 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.

 *

 * Based loosely on rtc-8583 by Russell King, Wolfram Sang and Juergen Beisert

 */

#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/slab.h>

#include <linux/rtc.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/errno.h>

#include <linux/bcd.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/regmap.h>

​

/*

 * Date/Time registers

 */

#define DT_100THS   0x00

#define DT_SECS     0x01

#define DT_MINUTES  0x02

#define DT_HOURS    0x03

#define DT_DAYS     0x04

#define DT_WEEKDAYS 0x05

#define DT_MONTHS   0x06

#define DT_YEARS    0x07

​

/*

 * Alarm registers

 */

#define DT_SECOND_ALM1  0x08

#define DT_MINUTE_ALM1  0x09

#define DT_HOUR_ALM1    0x0a

#define DT_DAY_ALM1 0x0b

#define DT_MONTH_ALM1   0x0c

#define DT_MINUTE_ALM2  0x0d

#define DT_HOUR_ALM2    0x0e

#define DT_WEEKDAY_ALM2 0x0f

#define DT_ALARM_EN 0x10

​

/*

 * Time stamp registers

 */

#define DT_TIMESTAMP1   0x11

#define DT_TIMESTAMP2   0x17

#define DT_TIMESTAMP3   0x1d

#define DT_TS_MODE  0x23

​

/*

 * control registers

 */

#define CTRL_OFFSET 0x24

#define CTRL_OSCILLATOR 0x25

#define CTRL_BATTERY    0x26

#define CTRL_PIN_IO 0x27

#define CTRL_FUNCTION   0x28

#define CTRL_INTA_EN    0x29

#define CTRL_INTB_EN    0x2a

#define CTRL_FLAGS  0x2b

#define CTRL_RAMBYTE    0x2c

#define CTRL_WDOG   0x2d

#define CTRL_STOP_EN    0x2e

#define CTRL_RESETS 0x2f

#define CTRL_RAM    0x40

​

#define ALRM_SEC_A1E    BIT(0)

#define ALRM_MIN_A1E    BIT(1)

#define ALRM_HR_A1E BIT(2)

#define ALRM_DAY_A1E    BIT(3)

#define ALRM_MON_A1E    BIT(4)

#define ALRM_MIN_A2E    BIT(5)

#define ALRM_HR_A2E BIT(6)

#define ALRM_DAY_A2E    BIT(7)

​

#define INT_WDIE    BIT(0)

#define INT_BSIE    BIT(1)

#define INT_TSRIE   BIT(2)

#define INT_A2IE    BIT(3)

#define INT_A1IE    BIT(4)

#define INT_OIE     BIT(5)

#define INT_PIE     BIT(6)

#define INT_ILP     BIT(7)