| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Carsten Langgaard, carstenl@mips.com |
| 3 | * Copyright (C) 1999,2000 MIPS Technologies, Inc. All rights reserved. |
| 4 | * Copyright (C) 2003 by Ralf Baechle |
| 5 | * |
| 6 | * This program is free software; you can distribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License (Version 2) as |
| 8 | * published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 13 | * for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along |
| 16 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 17 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. |
| 18 | * |
| 19 | * RTC routines for Malta style attached PIIX4 device, which contains a |
| 20 | * Motorola MC146818A-compatible Real Time Clock. |
| 21 | */ |
| 22 | #ifndef __ASM_MACH_MALTA_MC146818RTC_H |
| 23 | #define __ASM_MACH_MALTA_MC146818RTC_H |
| 24 | |
| 25 | #include <asm/io.h> |
| 26 | #include <asm/mips-boards/generic.h> |
| 27 | #include <asm/mips-boards/malta.h> |
| 28 | |
| 29 | #define RTC_PORT(x) (0x70 + (x)) |
| 30 | #define RTC_IRQ 8 |
| 31 | |
| 32 | static inline unsigned char CMOS_READ(unsigned long addr) |
| 33 | { |
| 34 | outb(addr, MALTA_RTC_ADR_REG); |
| 35 | return inb(MALTA_RTC_DAT_REG); |
| 36 | } |
| 37 | |
| 38 | static inline void CMOS_WRITE(unsigned char data, unsigned long addr) |
| 39 | { |
| 40 | outb(addr, MALTA_RTC_ADR_REG); |
| 41 | outb(data, MALTA_RTC_DAT_REG); |
| 42 | } |
| 43 | |
| 44 | #define RTC_ALWAYS_BCD 0 |
| 45 | |
| 46 | #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970) |
| 47 | |
| 48 | #endif /* __ASM_MACH_MALTA_MC146818RTC_H */ |