include/asm-sparc64/mc146818rtc.h

   1 /*
   2  * Machine dependent access functions for RTC registers.
   3  */
   4 #ifndef __ASM_SPARC64_MC146818RTC_H
   5 #define __ASM_SPARC64_MC146818RTC_H
   6
   7 #include <asm/io.h>
   8
   9 #ifndef RTC_PORT
  10 #ifdef CONFIG_PCI
  11 extern unsigned long ds1287_regs;
  12 #else
  13 #define ds1287_regs (0UL)
  14 #endif
  15 #define RTC_PORT(x)     (ds1287_regs + (x))
  16 #define RTC_ALWAYS_BCD  0
  17 #endif
  18
  19 /*
  20  * The yet supported machines all access the RTC index register via
  21  * an ISA port access but the way to access the date register differs ...
  22  */
  23 #define CMOS_READ(addr) ({ \
  24 outb_p((addr),RTC_PORT(0)); \
  25 inb_p(RTC_PORT(1)); \
  26 })
  27 #define CMOS_WRITE(val, addr) ({ \
  28 outb_p((addr),RTC_PORT(0)); \
  29 outb_p((val),RTC_PORT(1)); \
  30 })
  31
  32 #define RTC_IRQ 8
  33
  34 #endif /* __ASM_SPARC64_MC146818RTC_H */