| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 1998, 2001, 03 by Ralf Baechle |
| * Copyright (C) 2007 Thomas Bogendoerfer |
| * |
| * RTC routines for Jazz style attached Dallas chip. |
| */ |
| #ifndef __ASM_MACH_JAZZ_MC146818RTC_H |
| #define __ASM_MACH_JAZZ_MC146818RTC_H |
| |
| #include <linux/delay.h> |
| |
| #include <asm/io.h> |
| #include <asm/jazz.h> |
| |
| #define RTC_PORT(x) (0x70 + (x)) |
| #define RTC_IRQ 8 |
| |
| static inline unsigned char CMOS_READ(unsigned long addr) |
| { |
| outb_p(addr, RTC_PORT(0)); |
| return *(volatile char *)JAZZ_RTC_BASE; |
| } |
| |
| static inline void CMOS_WRITE(unsigned char data, unsigned long addr) |
| { |
| outb_p(addr, RTC_PORT(0)); |
| *(volatile char *)JAZZ_RTC_BASE = data; |
| } |
| |
| #define RTC_ALWAYS_BCD 0 |
| |
| #define mc146818_decode_year(year) ((year) + 1980) |
| |
| #endif /* __ASM_MACH_JAZZ_MC146818RTC_H */ |
