added a lot of printk output to ease writing of emulator
[linux-2.4.21-pre4.git] / arch / mips / lib / rtc-std.c
1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  *
6  * RTC routines for PC style attached Dallas chip.
7  *
8  * Copyright (C) 1998, 2001 by Ralf Baechle
9  */
10 #include <linux/mc146818rtc.h>
11 #include <asm/io.h>
12
13 static unsigned char std_rtc_read_data(unsigned long addr)
14 {
15         outb_p(addr, RTC_PORT(0));
16         return inb_p(RTC_PORT(1));
17 }
18
19 static void std_rtc_write_data(unsigned char data, unsigned long addr)
20 {
21         outb_p(addr, RTC_PORT(0));
22         outb_p(data, RTC_PORT(1));
23 }
24
25 static int std_rtc_bcd_mode(void)
26 {
27         return 1;
28 }
29
30 struct rtc_ops std_rtc_ops = {
31         &std_rtc_read_data,
32         &std_rtc_write_data,
33         &std_rtc_bcd_mode
34 };