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