mc146818rtc.h 1.2 KB

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  1. /*
  2. * RTC definitions for DECstation style attached Dallas DS1287 chip.
  3. *
  4. * Copyright (C) 1998, 2001 by Ralf Baechle
  5. * Copyright (C) 1998 by Harald Koerfgen
  6. * Copyright (C) 2002 Maciej W. Rozycki
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License
  10. * as published by the Free Software Foundation; either version
  11. * 2 of the License, or (at your option) any later version.
  12. */
  13. #ifndef __ASM_MIPS_DEC_RTC_DEC_H
  14. #define __ASM_MIPS_DEC_RTC_DEC_H
  15. #include <linux/types.h>
  16. #include <asm/addrspace.h>
  17. extern volatile u8 *dec_rtc_base;
  18. extern unsigned long dec_kn_slot_size;
  19. #define RTC_PORT(x) CPHYSADDR(dec_rtc_base)
  20. #define RTC_IO_EXTENT dec_kn_slot_size
  21. #define RTC_IOMAPPED 0
  22. #undef RTC_IRQ
  23. #define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */
  24. #include <linux/mc146818rtc.h>
  25. #include <linux/module.h>
  26. #include <linux/types.h>
  27. static inline unsigned char CMOS_READ(unsigned long addr)
  28. {
  29. return dec_rtc_base[addr * 4];
  30. }
  31. static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
  32. {
  33. dec_rtc_base[addr * 4] = data;
  34. }
  35. #define RTC_ALWAYS_BCD 0
  36. #endif /* __ASM_MIPS_DEC_RTC_DEC_H */