include/asm-mips/mach-pb1x00/mc146818rtc.h

   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  * Copyright (C) 1998, 2001, 03 by Ralf Baechle
   7  *
   8  * RTC routines for PC style attached Dallas chip.
   9  */
  10 #ifndef __ASM_MACH_AU1XX_MC146818RTC_H
  11 #define __ASM_MACH_AU1XX_MC146818RTC_H
  12
  13 #include <asm/io.h>
  14 #include <asm/mach-au1x00/au1000.h>
  15
  16 #define RTC_PORT(x)     (0x0c000000 + (x))
  17 #define RTC_IRQ         8
  18 #define PB1500_RTC_ADDR 0x0c000000
  19
  20 static inline unsigned char CMOS_READ(unsigned long offset)
  21 {
  22         offset <<= 2;
  23         return (u8)(au_readl(offset + PB1500_RTC_ADDR) & 0xff);
  24 }
  25
  26 static inline void CMOS_WRITE(unsigned char data, unsigned long offset)
  27 {
  28         offset <<= 2;
  29         au_writel(data, offset + PB1500_RTC_ADDR);
  30 }
  31
  32 #define RTC_ALWAYS_BCD  1
  33
  34 #endif /* __ASM_MACH_AU1XX_MC146818RTC_H */