forked from luck/tmp_suning_uos_patched
38e0e8c055
Handle memory-mapped chips properly, needed for example on DECstations. This support was in Linux 2.4 but for some reason got lost in 2.6. This patch is taken directly from the linux-mips repository. [akpm@osdl.org: cleanup] Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Martin Michlmayr <tbm@cyrius.com> Cc: Paul Gortmaker <penguin@muskoka.com> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
|
|
* RTC definitions for DECstation style attached Dallas DS1287 chip.
|
|
*
|
|
* Copyright (C) 1998, 2001 by Ralf Baechle
|
|
* Copyright (C) 1998 by Harald Koerfgen
|
|
* Copyright (C) 2002, 2005 Maciej W. Rozycki
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef __ASM_MIPS_DEC_RTC_DEC_H
|
|
#define __ASM_MIPS_DEC_RTC_DEC_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/addrspace.h>
|
|
#include <asm/dec/system.h>
|
|
|
|
extern volatile u8 *dec_rtc_base;
|
|
|
|
#define ARCH_RTC_LOCATION
|
|
|
|
#define RTC_PORT(x) CPHYSADDR((long)dec_rtc_base)
|
|
#define RTC_IO_EXTENT dec_kn_slot_size
|
|
#define RTC_IOMAPPED 0
|
|
#undef RTC_IRQ
|
|
|
|
#define RTC_DEC_YEAR 0x3f /* Where we store the real year on DECs. */
|
|
|
|
static inline unsigned char CMOS_READ(unsigned long addr)
|
|
{
|
|
return dec_rtc_base[addr * 4];
|
|
}
|
|
|
|
static inline void CMOS_WRITE(unsigned char data, unsigned long addr)
|
|
{
|
|
dec_rtc_base[addr * 4] = data;
|
|
}
|
|
|
|
#define RTC_ALWAYS_BCD 0
|
|
|
|
#endif /* __ASM_MIPS_DEC_RTC_DEC_H */
|