| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 1998, 2001, 03 by Ralf Baechle |
| 7 | * Copyright (C) 2000 Harald Koerfgen |
| 8 | * |
| 9 | * RTC routines for IP32 style attached Dallas chip. |
| 10 | */ |
| 11 | #ifndef __ASM_MACH_IP32_MC146818RTC_H |
| 12 | #define __ASM_MACH_IP32_MC146818RTC_H |
| 13 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <asm/ip32/mace.h> |
| 15 | |
| 16 | #define RTC_PORT(x) (0x70 + (x)) |
| 17 | |
| 18 | static unsigned char CMOS_READ(unsigned long addr) |
| 19 | { |
| 20 | return mace->isa.rtc[addr << 8]; |
| 21 | } |
| 22 | |
| 23 | static inline void CMOS_WRITE(unsigned char data, unsigned long addr) |
| 24 | { |
| 25 | mace->isa.rtc[addr << 8] = data; |
| 26 | } |
| 27 | |
| Ralf Baechle | 1621201 | 2005-11-17 16:23:44 +0000 | [diff] [blame] | 28 | /* |
| 29 | * FIXME: Do it right. For now just assume that noone lives in 20th century |
| 30 | * and no O2 user in 22th century ;-) |
| 31 | */ |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | #define mc146818_decode_year(year) ((year) + 2000) |
| 33 | |
| 34 | #define RTC_ALWAYS_BCD 0 |
| 35 | |
| 36 | #endif /* __ASM_MACH_IP32_MC146818RTC_H */ |