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 ARCH_RTC_LOCATION 32 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 37 38static inline unsigned char CMOS_READ(unsigned long addr) 39{ 40 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0)); 41 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1)); 42 43 *ireg = addr; 44 return *dreg; 45} 46 47static inline void CMOS_WRITE(unsigned char data, unsigned long addr) 48{ 49 volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0)); 50 volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1)); 51 52 *ireg = addr; 53 *dreg = data; 54} 55 56#define RTC_ALWAYS_BCD 0 57 58#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1900) 59 60#endif /* __ASM_MACH_ATLAS_MC146818RTC_H */ 61