1 /*
2 * Copyright 2001 MontaVista Software Inc.
3 * Author: MontaVista Software, Inc.
4 * ahennessy@mvista.com
5 *
6 * RTC routines for Dallas chip.
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file "COPYING" in the main directory of this archive
10 * for more details.
11 *
12 * Copyright (C) 200-2001 Toshiba Corporation
13 *
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the
16 * Free Software Foundation; either version 2 of the License, or (at your
17 * option) any later version.
18 *
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
22 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
25 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 *
30 * You should have received a copy of the GNU General Public License along
31 * with this program; if not, write to the Free Software Foundation, Inc.,
32 * 675 Mass Ave, Cambridge, MA 02139, USA.
33 */
34 #include <asm/mc146818rtc.h>
35
jmr3927_rtc_read_data(unsigned long addr)36 static unsigned char jmr3927_rtc_read_data(unsigned long addr)
37 {
38 return readb(addr);
39 }
40
jmr3927_rtc_write_data(unsigned char data,unsigned long addr)41 static void jmr3927_rtc_write_data(unsigned char data, unsigned long addr)
42 {
43 writeb(data, addr);
44 }
45
jmr3927_rtc_bcd_mode(void)46 static int jmr3927_rtc_bcd_mode(void)
47 {
48 return 1;
49 }
50
51 struct rtc_ops jmr3927_rtc_ops = {
52 &jmr3927_rtc_read_data,
53 &jmr3927_rtc_write_data,
54 &jmr3927_rtc_bcd_mode
55 };
56