xref: /openbmc/u-boot/include/mk48t59.h (revision 415a613b)
1 /*
2  * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
3  * Andreas Heppel <aheppel@sysgo.de>
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License as
10  * published by the Free Software Foundation; either version 2 of
11  * the License, or (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program; if not, write to the Free Software
20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21  * MA 02111-1307 USA
22  */
23 
24 /*
25  * Date & Time support for the MK48T59 RTC
26  */
27 
28 
29 #if defined(CONFIG_RTC_MK48T59) && defined(CONFIG_CMD_DATE)
30 
31 #define RTC_PORT_ADDR0		CFG_ISA_IO +  0x70
32 #define RTC_PORT_ADDR1		RTC_PORT_ADDR0 +  0x1
33 #define RTC_PORT_DATA		CFG_ISA_IO +  0x76
34 
35 /* RTC Offsets */
36 #define RTC_SECONDS             0x1FF9
37 #define RTC_MINUTES             0x1FFA
38 #define RTC_HOURS               0x1FFB
39 #define RTC_DAY_OF_WEEK         0x1FFC
40 #define RTC_DAY_OF_MONTH        0x1FFD
41 #define RTC_MONTH               0x1FFE
42 #define RTC_YEAR                0x1FFF
43 
44 #define RTC_CONTROLA            0x1FF8
45 #define RTC_CA_WRITE            0x80
46 #define RTC_CA_READ             0x40
47 #define RTC_CA_CALIB_SIGN       0x20
48 #define RTC_CA_CALIB_MASK       0x1f
49 
50 #define RTC_CONTROLB            0x1FF9
51 #define RTC_CB_STOP             0x80
52 
53 #define RTC_WATCHDOG			0x1FF7
54 #define RTC_WDS					0x80
55 #define RTC_WD_RB_16TH			0x0
56 #define RTC_WD_RB_4TH			0x1
57 #define RTC_WD_RB_1				0x2
58 #define RTC_WD_RB_4				0x3
59 
60 void rtc_set_watchdog(short multi, short res);
61 void *nvram_read(void *dest, const short src, size_t count);
62 void nvram_write(short dest, const void *src, size_t count);
63 
64 #endif
65