187 lines
5.3 KiB
C
187 lines
5.3 KiB
C
/*
|
|
* Some macro and struct of SUNXI RTC.
|
|
*
|
|
* Copyright (C) 2016 Allwinner.
|
|
*
|
|
* Mintow <duanmintao@allwinnertech.com>
|
|
*
|
|
* 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 _RTC_SUNXI_H_
|
|
#define _RTC_SUNXI_H_
|
|
|
|
#define SUNXI_LOSC_CTRL 0x0000
|
|
#define SUNXI_LOSC_CTRL_RTC_HMS_ACC BIT(8)
|
|
#define SUNXI_LOSC_CTRL_RTC_YMD_ACC BIT(7)
|
|
#define REG_LOSCCTRL_MAGIC 0x16aa0000
|
|
#define REG_CLK32K_AUTO_SWT_EN BIT(14)
|
|
#define RTC_SOURCE_EXTERNAL 0x00000001
|
|
#define EXT_LOSC_GSM 0x00000008
|
|
#define SUNXI_ALARM_CONFIG 0x0050
|
|
#define SUNXI_ALRM_WAKEUP_OUTPUT_EN BIT(0)
|
|
#define SUNXI_GP_DATA_REG2 (0x100 + 0x04 * 2)
|
|
|
|
/* alarm0 which based on seconds can power on system,
|
|
* while alarm1 can't, so alarm1 is not used.
|
|
*/
|
|
/* #define SUNXI_ALARM1_USED */
|
|
|
|
#if (defined CONFIG_ARCH_SUN50IW1) \
|
|
|| (defined CONFIG_ARCH_SUN50IW2) \
|
|
|| (defined CONFIG_ARCH_SUN50IW3) \
|
|
|| (defined CONFIG_ARCH_SUN50IW6) \
|
|
|| (defined CONFIG_ARCH_SUN8IW5P1) \
|
|
|| (defined CONFIG_ARCH_SUN8IW10P1) \
|
|
|| (defined CONFIG_ARCH_SUN8IW11P1)\
|
|
|| (defined CONFIG_ARCH_SUN8IW17P1) \
|
|
|| (defined CONFIG_ARCH_SUN8IW8)
|
|
#define SUNXI_RTC_YMD 0x0010
|
|
|
|
#define SUNXI_RTC_HMS 0x0014
|
|
|
|
#ifdef SUNXI_ALARM1_USED
|
|
|
|
#define SUNXI_ALRM_DHMS 0x0040
|
|
|
|
#define SUNXI_ALRM_EN 0x0044
|
|
#define SUNXI_ALRM_EN_CNT_EN BIT(8)
|
|
|
|
#define SUNXI_ALRM_IRQ_EN 0x0048
|
|
#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
|
|
|
|
#define SUNXI_ALRM_IRQ_STA 0x004c
|
|
#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
|
|
|
|
#else
|
|
|
|
#define SUNXI_ALRM_COUNTER 0x0020
|
|
#define SUNXI_ALRM_CURRENT 0x0024
|
|
|
|
#define SUNXI_ALRM_EN 0x0028
|
|
#define SUNXI_ALRM_EN_CNT_EN BIT(0)
|
|
|
|
#define SUNXI_ALRM_IRQ_EN 0x002c
|
|
#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
|
|
|
|
#define SUNXI_ALRM_IRQ_STA 0x0030
|
|
#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
|
|
|
|
#endif /* end of SUNXI_ALARM1_USED */
|
|
|
|
#else
|
|
|
|
#define SUNXI_RTC_YMD 0x0004
|
|
|
|
#define SUNXI_RTC_HMS 0x0008
|
|
|
|
#define SUNXI_ALRM_DHMS 0x000c
|
|
|
|
#define SUNXI_ALRM_EN 0x0014
|
|
#define SUNXI_ALRM_EN_CNT_EN BIT(8)
|
|
|
|
#define SUNXI_ALRM_IRQ_EN 0x0018
|
|
#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
|
|
|
|
#define SUNXI_ALRM_IRQ_STA 0x001c
|
|
#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
|
|
|
|
#endif
|
|
|
|
#define SUNXI_MASK_DH 0x0000001f
|
|
#define SUNXI_MASK_SM 0x0000003f
|
|
#define SUNXI_MASK_M 0x0000000f
|
|
#define SUNXI_MASK_LY 0x00000001
|
|
#define SUNXI_MASK_D 0x00000ffe
|
|
|
|
#define SUNXI_GET(x, mask, shift) (((x) & ((mask) << (shift))) \
|
|
>> (shift))
|
|
|
|
#define SUNXI_SET(x, mask, shift) (((x) & (mask)) << (shift))
|
|
|
|
/*
|
|
* Get date values
|
|
*/
|
|
#define SUNXI_DATE_GET_DAY_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 0)
|
|
#define SUNXI_DATE_GET_MON_VALUE(x) SUNXI_GET(x, SUNXI_MASK_M, 8)
|
|
#define SUNXI_DATE_GET_YEAR_VALUE(x, d) SUNXI_GET(x, (d)->mask, (d)->yshift)
|
|
|
|
/*
|
|
* Get time values
|
|
*/
|
|
#define SUNXI_TIME_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
|
|
#define SUNXI_TIME_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
|
|
#define SUNXI_TIME_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
|
|
|
|
/*
|
|
* Get alarm values
|
|
*/
|
|
#define SUNXI_ALRM_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
|
|
#define SUNXI_ALRM_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
|
|
#define SUNXI_ALRM_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
|
|
|
|
/*
|
|
* Set date values
|
|
*/
|
|
#define SUNXI_DATE_SET_DAY_VALUE(x) SUNXI_DATE_GET_DAY_VALUE(x)
|
|
#define SUNXI_DATE_SET_MON_VALUE(x) SUNXI_SET(x, SUNXI_MASK_M, 8)
|
|
#define SUNXI_DATE_SET_YEAR_VALUE(x, d) SUNXI_SET(x, (d)->mask, (d)->yshift)
|
|
#define SUNXI_LEAP_SET_VALUE(x, shift) SUNXI_SET(x, SUNXI_MASK_LY, shift)
|
|
|
|
/*
|
|
* Set time values
|
|
*/
|
|
#define SUNXI_TIME_SET_SEC_VALUE(x) SUNXI_TIME_GET_SEC_VALUE(x)
|
|
#define SUNXI_TIME_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
|
|
#define SUNXI_TIME_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
|
|
|
|
/*
|
|
* Set alarm values
|
|
*/
|
|
#define SUNXI_ALRM_SET_SEC_VALUE(x) SUNXI_ALRM_GET_SEC_VALUE(x)
|
|
#define SUNXI_ALRM_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
|
|
#define SUNXI_ALRM_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
|
|
#define SUNXI_ALRM_SET_DAY_VALUE(x) SUNXI_SET(x, SUNXI_MASK_D, 21)
|
|
|
|
/*
|
|
* Time unit conversions
|
|
*/
|
|
#define SEC_IN_MIN 60
|
|
#define SEC_IN_HOUR (60 * SEC_IN_MIN)
|
|
#define SEC_IN_DAY (24 * SEC_IN_HOUR)
|
|
|
|
/*
|
|
* The year parameter passed to the driver is usually an offset relative to
|
|
* the year 1900. This macro is used to convert this offset to another one
|
|
* relative to the minimum year allowed by the hardware.
|
|
*/
|
|
#define SUNXI_YEAR_OFF(x) ((x)->min - 1900)
|
|
|
|
#if defined(CONFIG_ARCH_SUN50IW2) || defined(CONFIG_ARCH_SUN50IW6)
|
|
#define SUNXI_RTC_DYNAMIC_YEAR_RANGE 1
|
|
#endif
|
|
|
|
/*
|
|
* min and max year are arbitrary set considering the limited range of the
|
|
* hardware register field
|
|
*/
|
|
struct sunxi_rtc_data_year {
|
|
unsigned int min; /* min year allowed */
|
|
unsigned int max; /* max year allowed */
|
|
unsigned int mask; /* mask for the year field */
|
|
unsigned int yshift; /* bit shift to get the year */
|
|
unsigned char leap_shift; /* bit shift to get the leap year */
|
|
};
|
|
|
|
struct sunxi_rtc_dev {
|
|
struct rtc_device *rtc;
|
|
struct device *dev;
|
|
struct sunxi_rtc_data_year *data_year;
|
|
void __iomem *base;
|
|
int irq;
|
|
};
|
|
|
|
#endif /* end of _RTC_SUNXI_H_ */
|
|
|