2 * Copyright (C) 1999, 2000, 2005 MIPS Technologies, Inc.
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)
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.
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
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.
21 #ifndef __ASM_MACH_ATLAS_MC146818RTC_H
22 #define __ASM_MACH_ATLAS_MC146818RTC_H
24 #include <linux/types.h>
26 #include <asm/addrspace.h>
28 #include <asm/mips-boards/atlas.h>
29 #include <asm/mips-boards/atlasint.h>
31 #define ARCH_RTC_LOCATION
33 #define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8)
34 #define RTC_IO_EXTENT 0x100
35 #define RTC_IOMAPPED 0
36 #define RTC_IRQ ATLAS_INT_RTC
38 static inline unsigned char CMOS_READ(unsigned long addr)
40 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
41 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
47 static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
49 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0));
50 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1));
56 #define RTC_ALWAYS_BCD 0
58 #define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900)
60 #endif /* __ASM_MACH_ATLAS_MC146818RTC_H */