039c8db774
On the BeagleBoard-xM, the RTC is located on the Power Management IC (PMIC). To keep things consistent, access to the PMIC's RTC is done through the readclock driver. The readclock driver forwards the request on to the TPS65950 driver which does the work of manipulating the registers on the chip. Change-Id: I53cefbb59c5a9ab87fab90df3cc1a75a6e430f58
94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
#ifndef __OMAP_RTC_REGISTERS_H
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#define __OMAP_RTC_REGISTERS_H
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/* RTC Addresses for am335x (BeagleBone White / BeagleBone Black) */
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/* Base Addresses */
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#define AM335X_RTC_SS_BASE 0x44e3e000
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/* Size of RTC Register Address Range */
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#define AM335X_RTC_SS_SIZE 0x1000
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/* Register Offsets */
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#define AM335X_RTC_SS_SECONDS_REG 0x0
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#define AM335X_RTC_SS_MINUTES_REG 0x4
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#define AM335X_RTC_SS_HOURS_REG 0x8
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#define AM335X_RTC_SS_DAYS_REG 0xC
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#define AM335X_RTC_SS_MONTHS_REG 0x10
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#define AM335X_RTC_SS_YEARS_REG 0x14
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#define AM335X_RTC_SS_WEEKS_REG 0x18
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#define AM335X_RTC_SS_ALARM_SECONDS_REG 0x20
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#define AM335X_RTC_SS_ALARM_MINUTES_REG 0x24
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#define AM335X_RTC_SS_ALARM_HOURS_REG 0x28
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#define AM335X_RTC_SS_ALARM_DAYS_REG 0x2C
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#define AM335X_RTC_SS_ALARM_MONTHS_REG 0x30
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#define AM335X_RTC_SS_ALARM_YEARS_REG 0x34
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#define AM335X_RTC_SS_RTC_CTRL_REG 0x40
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#define AM335X_RTC_SS_RTC_STATUS_REG 0x44
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#define AM335X_RTC_SS_RTC_INTERRUPTS_REG 0x48
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#define AM335X_RTC_SS_RTC_COMP_LSB_REG 0x4C
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#define AM335X_RTC_SS_RTC_COMP_MSB_REG 0x50
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#define AM335X_RTC_SS_RTC_OSC_REG 0x54
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#define AM335X_RTC_SS_RTC_SCRATCH0_REG 0x60
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#define AM335X_RTC_SS_RTC_SCRATCH1_REG 0x64
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#define AM335X_RTC_SS_RTC_SCRATCH2_REG 0x68
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#define AM335X_RTC_SS_KICK0R 0x6C
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#define AM335X_RTC_SS_KICK1R 0x70
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#define AM335X_RTC_SS_RTC_REVISION 0x74
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#define AM335X_RTC_SS_RTC_SYSCONFIG 0x78
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#define AM335X_RTC_SS_RTC_IRQWAKEEN 0x7C
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#define AM335X_RTC_SS_ALARM2_SECONDS_REG 0x80
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#define AM335X_RTC_SS_ALARM2_MINUTES_REG 0x84
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#define AM335X_RTC_SS_ALARM2_HOURS_REG 0x88
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#define AM335X_RTC_SS_ALARM2_DAYS_REG 0x8C
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#define AM335X_RTC_SS_ALARM2_MONTHS_REG 0x90
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#define AM335X_RTC_SS_ALARM2_YEARS_REG 0x94
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#define AM335X_RTC_SS_RTC_PMIC 0x98
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#define AM335X_RTC_SS_RTC_DEBOUNCE 0x9C
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/* Constants */
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#define AM335X_RTC_SS_KICK0R_UNLOCK_MASK 0x83E70B13
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#define AM335X_RTC_SS_KICK1R_UNLOCK_MASK 0x95A4F1E0
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#define AM335X_RTC_SS_KICK0R_LOCK_MASK 0x546f6d20
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#define AM335X_RTC_SS_KICK1R_LOCK_MASK 0x436f7274
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/* Bits */
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/* RTC_SS_RTC_STATUS_REG */
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#define RTC_BUSY_BIT 0
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/* RTC_SS_RTC_CTRL_REG */
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#define RTC_STOP_BIT 0
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/* RTC_SS_RTC_SYSCONFIG */
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#define NOIDLE_BIT 0
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/* RTC_SS_RTC_OSC_REG */
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#define EN_32KCLK_BIT 6
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/* RTC_SS_RTC_PMIC */
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#define PWR_ENABLE_EN_BIT 16
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/* RTC_SS_RTC_INTERRUPTS_REG */
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#define IT_ALARM2_BIT 4
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/* Clocks */
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#define CM_RTC_RTC_CLKCTRL 0x800
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#define CM_RTC_RTC_CLKCTRL_IDLEST ((0<<17)|(0<<16))
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#define CM_RTC_RTC_CLKCTRL_MODULEMODE ((1<<1)|(0<<0))
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#define CM_RTC_RTC_CLKCTRL_MASK (CM_RTC_RTC_CLKCTRL_IDLEST|CM_RTC_RTC_CLKCTRL_MODULEMODE)
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#define CM_RTC_CLKSTCTRL 0x804
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#define CLKACTIVITY_RTC_32KCLK (1<<9)
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#define CLKACTIVITY_L4_RTC_GCLK (1<<8)
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#define CLKTRCTRL ((0<<1)|(0<<0))
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#define CM_RTC_CLKSTCTRL_MASK (CLKACTIVITY_RTC_32KCLK|CLKACTIVITY_L4_RTC_GCLK|CLKTRCTRL)
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int omap_rtc_init(void);
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int omap_rtc_get_time(struct tm *t, int flags);
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int omap_rtc_set_time(struct tm *t, int flags);
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int omap_rtc_pwr_off(void);
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void omap_rtc_exit(void);
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#endif /* __OMAP_RTC_REGISTERS_H */
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