include/asm-mips/mach-ddb5074/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_DDB5074_MC146818RTC_H
  11 #define __ASM_MACH_DDB5074_MC146818RTC_H
  12
  13 #include <asm/ddb5xxx/ddb5074.h>
  14 #include <asm/ddb5xxx/ddb5xxx.h>
  15
  16 #define RTC_PORT(x)     (0x70 + (x))
  17 #define RTC_IRQ         8
  18
  19 static inline unsigned char CMOS_READ(unsigned long addr)
  20 {
  21         return *(volatile unsigned char *)(KSEG1ADDR(DDB_PCI_MEM_BASE)+addr);
  22 }
  23
  24 static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
  25 {
  26         *(volatile unsigned char *)(KSEG1ADDR(DDB_PCI_MEM_BASE)+addr) = data;
  27 }
  28
  29 #define RTC_ALWAYS_BCD  1
  30
  31 #endif /* __ASM_MACH_DDB5074_MC146818RTC_H */