xref: /openbmc/u-boot/arch/m68k/include/asm/rtc.h (revision 552a848e)
1 /*
2  * RealTime Clock
3  *
4  * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
5  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 
10 #ifndef __MCFRTC_H__
11 #define __MCFRTC_H__
12 
13 /* Real time Clock */
14 typedef struct rtc_ctrl {
15 	u32 hourmin;		/* 0x00 Hours and Minutes Counter Register */
16 	u32 seconds;		/* 0x04 Seconds Counter Register */
17 	u32 alrm_hm;		/* 0x08 Hours and Minutes Alarm Register */
18 	u32 alrm_sec;		/* 0x0C Seconds Alarm Register */
19 	u32 cr;			/* 0x10 Control Register */
20 	u32 isr;		/* 0x14 Interrupt Status Register */
21 	u32 ier;		/* 0x18 Interrupt Enable Register */
22 	u32 stpwatch;		/* 0x1C Stopwatch Minutes Register */
23 	u32 days;		/* 0x20 Days Counter Register */
24 	u32 alrm_day;		/* 0x24 Days Alarm Register */
25 	void *extended;
26 } rtc_t;
27 
28 /* Bit definitions and macros for HOURMIN */
29 #define RTC_HOURMIN_MINUTES(x)	(((x)&0x0000003F))
30 #define RTC_HOURMIN_HOURS(x)	(((x)&0x0000001F)<<8)
31 
32 /* Bit definitions and macros for SECONDS */
33 #define RTC_SECONDS_SECONDS(x)	(((x)&0x0000003F))
34 
35 /* Bit definitions and macros for ALRM_HM */
36 #define RTC_ALRM_HM_MINUTES(x)	(((x)&0x0000003F))
37 #define RTC_ALRM_HM_HOURS(x)	(((x)&0x0000001F)<<8)
38 
39 /* Bit definitions and macros for ALRM_SEC */
40 #define RTC_ALRM_SEC_SECONDS(x)	(((x)&0x0000003F))
41 
42 /* Bit definitions and macros for CR */
43 #define RTC_CR_SWR		(0x00000001)
44 #define RTC_CR_XTL(x)		(((x)&0x00000003)<<5)
45 #define RTC_CR_EN		(0x00000080)
46 #define RTC_CR_32768		(0x0)
47 #define RTC_CR_32000		(0x1)
48 #define RTC_CR_38400		(0x2)
49 
50 /* Bit definitions and macros for ISR */
51 #define RTC_ISR_SW		(0x00000001)
52 #define RTC_ISR_MIN		(0x00000002)
53 #define RTC_ISR_ALM		(0x00000004)
54 #define RTC_ISR_DAY		(0x00000008)
55 #define RTC_ISR_1HZ		(0x00000010)
56 #define RTC_ISR_HR		(0x00000020)
57 #define RTC_ISR_2HZ		(0x00000080)
58 #define RTC_ISR_SAM0		(0x00000100)
59 #define RTC_ISR_SAM1		(0x00000200)
60 #define RTC_ISR_SAM2		(0x00000400)
61 #define RTC_ISR_SAM3		(0x00000800)
62 #define RTC_ISR_SAM4		(0x00001000)
63 #define RTC_ISR_SAM5		(0x00002000)
64 #define RTC_ISR_SAM6		(0x00004000)
65 #define RTC_ISR_SAM7		(0x00008000)
66 
67 /* Bit definitions and macros for IER */
68 #define RTC_IER_SW		(0x00000001)
69 #define RTC_IER_MIN		(0x00000002)
70 #define RTC_IER_ALM		(0x00000004)
71 #define RTC_IER_DAY		(0x00000008)
72 #define RTC_IER_1HZ		(0x00000010)
73 #define RTC_IER_HR		(0x00000020)
74 #define RTC_IER_2HZ		(0x00000080)
75 #define RTC_IER_SAM0		(0x00000100)
76 #define RTC_IER_SAM1		(0x00000200)
77 #define RTC_IER_SAM2		(0x00000400)
78 #define RTC_IER_SAM3		(0x00000800)
79 #define RTC_IER_SAM4		(0x00001000)
80 #define RTC_IER_SAM5		(0x00002000)
81 #define RTC_IER_SAM6		(0x00004000)
82 #define RTC_IER_SAM7		(0x00008000)
83 
84 /* Bit definitions and macros for STPWCH */
85 #define RTC_STPWCH_CNT(x)	(((x)&0x0000003F))
86 
87 /* Bit definitions and macros for DAYS */
88 #define RTC_DAYS_DAYS(x)	(((x)&0x0000FFFF))
89 
90 /* Bit definitions and macros for ALRM_DAY */
91 #define RTC_ALRM_DAY_DAYS(x)	(((x)&0x0000FFFF))
92 
93 #endif				/* __MCFRTC_H__ */
94