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 10extern unsigned long cmos_regs; 11#define RTC_PORT(x) (cmos_regs + (x)) 12#define RTC_ALWAYS_BCD 0 13#endif 14 15/* 16 * The yet supported machines all access the RTC index register via 17 * an ISA port access but the way to access the date register differs ... 18 */ 19#define CMOS_READ(addr) ({ \ 20outb_p((addr),RTC_PORT(0)); \ 21inb_p(RTC_PORT(1)); \ 22}) 23#define CMOS_WRITE(val, addr) ({ \ 24outb_p((addr),RTC_PORT(0)); \ 25outb_p((val),RTC_PORT(1)); \ 26}) 27 28#endif /* __ASM_SPARC64_MC146818RTC_H */ 29