203 lines
5.7 KiB
C
203 lines
5.7 KiB
C
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/*
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* Some macro and struct of SUNXI RTC.
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*
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* Copyright (C) 2016 Allwinner.
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*
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* Matteo <duanmintao@allwinnertech.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef _RTC_SUNXI_H_
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#define _RTC_SUNXI_H_
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#define SUNXI_LOSC_CTRL 0x0000
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#define SUNXI_LOSC_CTRL_RTC_HMS_ACC BIT(8)
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#define SUNXI_LOSC_CTRL_RTC_YMD_ACC BIT(7)
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#define REG_LOSCCTRL_MAGIC 0x16aa0000
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#define REG_CLK32K_AUTO_SWT_EN BIT(14)
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#define REG_CLK32K_AUTO_SWT_BYPASS BIT(15)
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#define RTC_SOURCE_EXTERNAL 0x00000001
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#define EXT_LOSC_GSM 0x00000008
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#define SUNXI_ALARM_CONFIG 0x0050
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#define SUNXI_ALRM_WAKEUP_OUTPUT_EN BIT(0)
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/* alarm0 which based on seconds can power on system,
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* while alarm1 can't, so alarm1 is not used.
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*/
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/* #define SUNXI_ALARM1_USED */
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#if (defined CONFIG_ARCH_SUN8IW11) || (defined CONFIG_ARCH_SUN8IW12) \
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|| (defined CONFIG_ARCH_SUN8IW15) \
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|| (defined CONFIG_ARCH_SUN50IW1) \
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|| (defined CONFIG_ARCH_SUN50IW3) \
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|| (defined CONFIG_ARCH_SUN50IW6) \
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|| (defined CONFIG_ARCH_SUN50IW8)
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#define SUNXI_RTC_YMD 0x0010
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#define SUNXI_RTC_HMS 0x0014
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#ifdef SUNXI_ALARM1_USED
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#define SUNXI_ALRM_DHMS 0x0040
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#define SUNXI_ALRM_EN 0x0044
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#define SUNXI_ALRM_EN_CNT_EN BIT(8)
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#define SUNXI_ALRM_IRQ_EN 0x0048
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#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
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#define SUNXI_ALRM_IRQ_STA 0x004c
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#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
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#else
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#define SUNXI_ALRM_COUNTER 0x0020
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#define SUNXI_ALRM_CURRENT 0x0024
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#define SUNXI_ALRM_EN 0x0028
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#define SUNXI_ALRM_EN_CNT_EN BIT(0)
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#define SUNXI_ALRM_IRQ_EN 0x002c
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#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
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#define SUNXI_ALRM_IRQ_STA 0x0030
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#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
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#endif /* end of SUNXI_ALARM1_USED */
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#else
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#define SUNXI_RTC_YMD 0x0004
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#define SUNXI_RTC_HMS 0x0008
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#define SUNXI_ALRM_DHMS 0x000c
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#define SUNXI_ALRM_EN 0x0014
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#define SUNXI_ALRM_EN_CNT_EN BIT(8)
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#define SUNXI_ALRM_IRQ_EN 0x0018
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#define SUNXI_ALRM_IRQ_EN_CNT_IRQ_EN BIT(0)
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#define SUNXI_ALRM_IRQ_STA 0x001c
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#define SUNXI_ALRM_IRQ_STA_CNT_IRQ_PEND BIT(0)
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#endif
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/* debug */
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#define SUNXI_DEBUG_MODE_FLAG (0x59)
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/* efex */
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#define SUNXI_EFEX_CMD_FLAG (0x5A)
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/* boot-resignature */
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#define SUNXI_BOOT_RESIGNATURE_FLAG (0x5B)
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/* recovery or boot-recovery */
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#define SUNXI_BOOT_RECOVERY_FLAG (0x5C)
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/* sysrecovery */
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#define SUNXI_SYS_RECOVERY_FLAG (0x5D)
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/* usb-recovery*/
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#define SUNXI_USB_RECOVERY_FLAG (0x5E)
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/* bootloader */
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#define SUNXI_FASTBOOT_FLAG (0x5F)
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#if defined(CONFIG_ARCH_SUN8IW12)
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#define SUNXI_RTC_COMP_CTRL 0x11b0
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#define SUNXI_COMP_ENABLE BIT(31)
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#define SUNXI_ADC_VDD_ON_DISABLE BIT(29)
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#endif
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#define SUNXI_MASK_DH 0x0000001f
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#define SUNXI_MASK_SM 0x0000003f
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#define SUNXI_MASK_M 0x0000000f
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#define SUNXI_MASK_LY 0x00000001
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#define SUNXI_MASK_D 0x00000ffe
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#define SUNXI_GET(x, mask, shift) (((x) & ((mask) << (shift))) \
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>> (shift))
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#define SUNXI_SET(x, mask, shift) (((x) & (mask)) << (shift))
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/*
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* Get date values
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*/
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#define SUNXI_DATE_GET_DAY_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 0)
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#define SUNXI_DATE_GET_MON_VALUE(x) SUNXI_GET(x, SUNXI_MASK_M, 8)
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#define SUNXI_DATE_GET_YEAR_VALUE(x, d) SUNXI_GET(x, (d)->mask, (d)->yshift)
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/*
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* Get time values
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*/
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#define SUNXI_TIME_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
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#define SUNXI_TIME_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_TIME_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
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/*
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* Get alarm values
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*/
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#define SUNXI_ALRM_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
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#define SUNXI_ALRM_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_ALRM_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
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/*
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* Set date values
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*/
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#define SUNXI_DATE_SET_DAY_VALUE(x) SUNXI_DATE_GET_DAY_VALUE(x)
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#define SUNXI_DATE_SET_MON_VALUE(x) SUNXI_SET(x, SUNXI_MASK_M, 8)
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#define SUNXI_DATE_SET_YEAR_VALUE(x, d) SUNXI_SET(x, (d)->mask, (d)->yshift)
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#define SUNXI_LEAP_SET_VALUE(x, shift) SUNXI_SET(x, SUNXI_MASK_LY, shift)
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/*
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* Set time values
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*/
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#define SUNXI_TIME_SET_SEC_VALUE(x) SUNXI_TIME_GET_SEC_VALUE(x)
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#define SUNXI_TIME_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_TIME_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
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/*
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* Set alarm values
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*/
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#define SUNXI_ALRM_SET_SEC_VALUE(x) SUNXI_ALRM_GET_SEC_VALUE(x)
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#define SUNXI_ALRM_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_ALRM_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
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#define SUNXI_ALRM_SET_DAY_VALUE(x) SUNXI_SET(x, SUNXI_MASK_D, 21)
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/*
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* Time unit conversions
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*/
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#define SEC_IN_MIN 60
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#define SEC_IN_HOUR (60 * SEC_IN_MIN)
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#define SEC_IN_DAY (24 * SEC_IN_HOUR)
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/*
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* The year parameter passed to the driver is usually an offset relative to
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* the year 1900. This macro is used to convert this offset to another one
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* relative to the minimum year allowed by the hardware.
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*/
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#define SUNXI_YEAR_OFF(x) ((x)->min - 1900)
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/*
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* min and max year are arbitrary set considering the limited range of the
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* hardware register field
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*/
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struct sunxi_rtc_data_year {
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unsigned int min; /* min year allowed */
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unsigned int max; /* max year allowed */
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unsigned int mask; /* mask for the year field */
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unsigned int yshift; /* bit shift to get the year */
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unsigned char leap_shift; /* bit shift to get the leap year */
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};
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struct sunxi_rtc_dev {
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struct rtc_device *rtc;
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struct device *dev;
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struct sunxi_rtc_data_year *data_year;
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void __iomem *base;
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int irq;
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};
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#endif /* end of _RTC_SUNXI_H_ */
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