rtc.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * RTC routines for PC style attached Dallas chip.
- *
- * Copyright (C) 1998, 2001 by Ralf Baechle
- */
- #include <linux/mc146818rtc.h>
- #include <asm/io.h>
- #include <asm/au1000.h>
- #define PB1500_RTC_ADDR 0xAC000000
- unsigned char std_rtc_read_data(unsigned long offset)
- {
- offset <<= 2;
- return (u8)(au_readl(offset + PB1500_RTC_ADDR) & 0xff);
- }
- static void std_rtc_write_data(unsigned char data, unsigned long offset)
- {
- offset <<= 2;
- au_writel(data, offset + PB1500_RTC_ADDR);
- }
- static int std_rtc_bcd_mode(void)
- {
- return 1;
- }
- struct rtc_ops pb1500_rtc_ops = {
- &std_rtc_read_data,
- &std_rtc_write_data,
- &std_rtc_bcd_mode
- };