linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * Copyright (C) STMicroelectronics 2017

 * Author:  Amelie Delaunay <amelie.delaunay@st.com>

 */

​

#include <linux/bcd.h>

#include <linux/clk.h>

#include <linux/iopoll.h>

#include <linux/ioport.h>

#include <linux/mfd/syscon.h>

#include <linux/module.h>

#include <linux/of_device.h>

#include <linux/pm_wakeirq.h>

#include <linux/regmap.h>

#include <linux/rtc.h>

​

#define DRIVER_NAME "stm32_rtc"

​

/* STM32_RTC_TR bit fields  */

#define STM32_RTC_TR_SEC_SHIFT      0

#define STM32_RTC_TR_SEC        GENMASK(6, 0)

#define STM32_RTC_TR_MIN_SHIFT      8

#define STM32_RTC_TR_MIN        GENMASK(14, 8)

#define STM32_RTC_TR_HOUR_SHIFT     16

#define STM32_RTC_TR_HOUR       GENMASK(21, 16)

​

/* STM32_RTC_DR bit fields */

#define STM32_RTC_DR_DATE_SHIFT     0

#define STM32_RTC_DR_DATE       GENMASK(5, 0)

#define STM32_RTC_DR_MONTH_SHIFT    8

#define STM32_RTC_DR_MONTH      GENMASK(12, 8)

#define STM32_RTC_DR_WDAY_SHIFT     13

#define STM32_RTC_DR_WDAY       GENMASK(15, 13)

#define STM32_RTC_DR_YEAR_SHIFT     16

#define STM32_RTC_DR_YEAR       GENMASK(23, 16)

​

/* STM32_RTC_CR bit fields */

#define STM32_RTC_CR_FMT        BIT(6)

#define STM32_RTC_CR_ALRAE      BIT(8)

#define STM32_RTC_CR_ALRAIE     BIT(12)

​

/* STM32_RTC_ISR/STM32_RTC_ICSR bit fields */

#define STM32_RTC_ISR_ALRAWF        BIT(0)

#define STM32_RTC_ISR_INITS     BIT(4)

#define STM32_RTC_ISR_RSF       BIT(5)

#define STM32_RTC_ISR_INITF     BIT(6)

#define STM32_RTC_ISR_INIT      BIT(7)

#define STM32_RTC_ISR_ALRAF     BIT(8)

​

/* STM32_RTC_PRER bit fields */

#define STM32_RTC_PRER_PRED_S_SHIFT 0

#define STM32_RTC_PRER_PRED_S       GENMASK(14, 0)

#define STM32_RTC_PRER_PRED_A_SHIFT 16

#define STM32_RTC_PRER_PRED_A       GENMASK(22, 16)

​

/* STM32_RTC_ALRMAR and STM32_RTC_ALRMBR bit fields */

#define STM32_RTC_ALRMXR_SEC_SHIFT  0

#define STM32_RTC_ALRMXR_SEC        GENMASK(6, 0)

#define STM32_RTC_ALRMXR_SEC_MASK   BIT(7)

#define STM32_RTC_ALRMXR_MIN_SHIFT  8

#define STM32_RTC_ALRMXR_MIN        GENMASK(14, 8)

#define STM32_RTC_ALRMXR_MIN_MASK   BIT(15)