linux/arch/m68k/sun3/intersil.c
Matthew Wilcox 950e4da324 arch: Remove unnecessary inclusions of asm/semaphore.h
None of these files use any of the functionality promised by
asm/semaphore.h.  It's possible that they rely on it dragging in some
unrelated header file, but I can't build all these files, so we'll have
fix any build failures as they come up.

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2008-04-18 22:14:49 -04:00

75 lines
1.7 KiB
C

/*
* arch/m68k/sun3/intersil.c
*
* basic routines for accessing the intersil clock within the sun3 machines
*
* started 11/12/1999 Sam Creasey
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive
* for more details.
*/
#include <linux/kernel.h>
#include <linux/rtc.h>
#include <asm/errno.h>
#include <asm/system.h>
#include <asm/rtc.h>
#include <asm/intersil.h>
/* bits to set for start/run of the intersil */
#define STOP_VAL (INTERSIL_STOP | INTERSIL_INT_ENABLE | INTERSIL_24H_MODE)
#define START_VAL (INTERSIL_RUN | INTERSIL_INT_ENABLE | INTERSIL_24H_MODE)
/* does this need to be implemented? */
unsigned long sun3_gettimeoffset(void)
{
return 1;
}
/* get/set hwclock */
int sun3_hwclk(int set, struct rtc_time *t)
{
volatile struct intersil_dt *todintersil;
unsigned long flags;
todintersil = (struct intersil_dt *) &intersil_clock->counter;
local_irq_save(flags);
intersil_clock->cmd_reg = STOP_VAL;
/* set or read the clock */
if(set) {
todintersil->csec = 0;
todintersil->hour = t->tm_hour;
todintersil->minute = t->tm_min;
todintersil->second = t->tm_sec;
todintersil->month = t->tm_mon;
todintersil->day = t->tm_mday;
todintersil->year = t->tm_year - 68;
todintersil->weekday = t->tm_wday;
} else {
/* read clock */
t->tm_sec = todintersil->csec;
t->tm_hour = todintersil->hour;
t->tm_min = todintersil->minute;
t->tm_sec = todintersil->second;
t->tm_mon = todintersil->month;
t->tm_mday = todintersil->day;
t->tm_year = todintersil->year + 68;
t->tm_wday = todintersil->weekday;
}
intersil_clock->cmd_reg = START_VAL;
local_irq_restore(flags);
return 0;
}