1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
4  * Andreas Heppel <aheppel@sysgo.de>
5  */
6 
7 /*
8  * Date & Time support for the MK48T59 RTC
9  */
10 
11 
12 #if defined(CONFIG_RTC_MK48T59) && defined(CONFIG_CMD_DATE)
13 
14 #define RTC_PORT_ADDR0		CONFIG_SYS_ISA_IO +  0x70
15 #define RTC_PORT_ADDR1		RTC_PORT_ADDR0 +  0x1
16 #define RTC_PORT_DATA		CONFIG_SYS_ISA_IO +  0x76
17 
18 /* RTC Offsets */
19 #define RTC_SECONDS             0x1FF9
20 #define RTC_MINUTES             0x1FFA
21 #define RTC_HOURS               0x1FFB
22 #define RTC_DAY_OF_WEEK         0x1FFC
23 #define RTC_DAY_OF_MONTH        0x1FFD
24 #define RTC_MONTH               0x1FFE
25 #define RTC_YEAR                0x1FFF
26 
27 #define RTC_CONTROLA            0x1FF8
28 #define RTC_CA_WRITE            0x80
29 #define RTC_CA_READ             0x40
30 #define RTC_CA_CALIB_SIGN       0x20
31 #define RTC_CA_CALIB_MASK       0x1f
32 
33 #define RTC_CONTROLB            0x1FF9
34 #define RTC_CB_STOP             0x80
35 
36 #define RTC_WATCHDOG			0x1FF7
37 #define RTC_WDS					0x80
38 #define RTC_WD_RB_16TH			0x0
39 #define RTC_WD_RB_4TH			0x1
40 #define RTC_WD_RB_1				0x2
41 #define RTC_WD_RB_4				0x3
42 
43 void rtc_set_watchdog(short multi, short res);
44 void *nvram_read(void *dest, const short src, size_t count);
45 void nvram_write(short dest, const void *src, size_t count);
46 
47 #endif
48