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1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
16212017 RB |
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 | */ | |
1da177e4 LT |
32 | #define mc146818_decode_year(year) ((year) + 2000) |
33 | ||
34 | #define RTC_ALWAYS_BCD 0 | |
35 | ||
36 | #endif /* __ASM_MACH_IP32_MC146818RTC_H */ |