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Diffstat (limited to 'include/asm-mips/mach-atlas/mc146818rtc.h')
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diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h
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1/*
2 * Copyright (C) 1999, 2000, 2005 MIPS Technologies, Inc.
3 * All rights reserved.
4 * Authors: Carsten Langgaard <carstenl@mips.com>
5 * Maciej W. Rozycki <macro@mips.com>
6 * Copyright (C) 2003, 05 Ralf Baechle (ralf@linux-mips.org)
7 *
8 * This program is free software; you can distribute it and/or modify it
9 * under the terms of the GNU General Public License (Version 2) as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 * for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
20 */
21#ifndef __ASM_MACH_ATLAS_MC146818RTC_H
22#define __ASM_MACH_ATLAS_MC146818RTC_H
23
24#include <linux/types.h>
25
26#include <asm/addrspace.h>
27
28#include <asm/mips-boards/atlas.h>
29#include <asm/mips-boards/atlasint.h>
30
31#define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8)
32#define RTC_IO_EXTENT 0x100
33#define RTC_IOMAPPED 0
34#define RTC_IRQ ATLASINT_RTC
35
36static inline unsigned char CMOS_READ(unsigned long addr)
37{
38 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
39 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
40
41 *ireg = addr;
42 return *dreg;
43}
44
45static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
46{
47 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
48 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
49
50 *ireg = addr;
51 *dreg = data;
52}
53
54#define RTC_ALWAYS_BCD 0
55
56#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970)
57
58#endif /* __ASM_MACH_ATLAS_MC146818RTC_H */