diff options
Diffstat (limited to 'include/asm-mips/mach-atlas/mc146818rtc.h')
| -rw-r--r-- | include/asm-mips/mach-atlas/mc146818rtc.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/include/asm-mips/mach-atlas/mc146818rtc.h b/include/asm-mips/mach-atlas/mc146818rtc.h new file mode 100644 index 0000000..397522e --- /dev/null +++ b/include/asm-mips/mach-atlas/mc146818rtc.h @@ -0,0 +1,58 @@ +/* + * Copyright (C) 1999, 2000, 2005 MIPS Technologies, Inc. + * All rights reserved. + * Authors: Carsten Langgaard <carstenl@mips.com> + * Maciej W. Rozycki <macro@mips.com> + * Copyright (C) 2003, 05 Ralf Baechle (ralf@linux-mips.org) + * + * This program is free software; you can distribute it and/or modify it + * under the terms of the GNU General Public License (Version 2) as + * published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. + */ +#ifndef __ASM_MACH_ATLAS_MC146818RTC_H +#define __ASM_MACH_ATLAS_MC146818RTC_H + +#include <linux/types.h> + +#include <asm/addrspace.h> + +#include <asm/mips-boards/atlas.h> +#include <asm/mips-boards/atlasint.h> + +#define RTC_PORT(x) (ATLAS_RTC_ADR_REG + (x) * 8) +#define RTC_IO_EXTENT 0x100 +#define RTC_IOMAPPED 0 +#define RTC_IRQ ATLASINT_RTC + +static inline unsigned char CMOS_READ(unsigned long addr) +{ + volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0)); + volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1)); + + *ireg = addr; + return *dreg; +} + +static inline void CMOS_WRITE(unsigned char data, unsigned long addr) +{ + volatile u32 *ireg = (void *)CKSEG1ADDR(RTC_PORT(0)); + volatile u32 *dreg = (void *)CKSEG1ADDR(RTC_PORT(1)); + + *ireg = addr; + *dreg = data; +} + +#define RTC_ALWAYS_BCD 0 + +#define mc146818_decode_year(year) ((year) < 70 ? (year) + 2000 : (year) + 1970) + +#endif /* __ASM_MACH_ATLAS_MC146818RTC_H */ |