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[SPARC64]: Handle mostek clock type in mini_rtc driver.

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Now that drivers/sbus/char/rtc.c is sparc32 only, we need this.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2007-07-27 14:40:27 -07:00
parent 3961bae0ac
commit a0afaa6ab1
1 changed files with 75 additions and 0 deletions
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75
arch/sparc64/kernel/time.c
View file

@ -1460,6 +1460,74 @@ static int cmos_set_rtc_time(struct rtc_time *rtc_tm)
}
#endif /* CONFIG_PCI */
static void mostek_get_rtc_time(struct rtc_time *rtc_tm)
{
void __iomem *regs = mstk48t02_regs;
u8 tmp;
spin_lock_irq(&mostek_lock);
tmp = mostek_read(regs + MOSTEK_CREG);
tmp |= MSTK_CREG_READ;
mostek_write(regs + MOSTEK_CREG, tmp);
rtc_tm->tm_sec = MSTK_REG_SEC(regs);
rtc_tm->tm_min = MSTK_REG_MIN(regs);
rtc_tm->tm_hour = MSTK_REG_HOUR(regs);
rtc_tm->tm_mday = MSTK_REG_DOM(regs);
rtc_tm->tm_mon = MSTK_REG_MONTH(regs);
rtc_tm->tm_year = MSTK_CVT_YEAR( MSTK_REG_YEAR(regs) );
rtc_tm->tm_wday = MSTK_REG_DOW(regs);
tmp = mostek_read(regs + MOSTEK_CREG);
tmp &= ~MSTK_CREG_READ;
mostek_write(regs + MOSTEK_CREG, tmp);
spin_unlock_irq(&mostek_lock);
rtc_tm->tm_mon--;
rtc_tm->tm_wday--;
rtc_tm->tm_year -= 1900;
}
static int mostek_set_rtc_time(struct rtc_time *rtc_tm)
{
unsigned char mon, day, hrs, min, sec, wday;
void __iomem *regs = mstk48t02_regs;
unsigned int yrs;
u8 tmp;
yrs = rtc_tm->tm_year + 1900;
mon = rtc_tm->tm_mon + 1;
day = rtc_tm->tm_mday;
wday = rtc_tm->tm_wday + 1;
hrs = rtc_tm->tm_hour;
min = rtc_tm->tm_min;
sec = rtc_tm->tm_sec;
spin_lock_irq(&mostek_lock);
tmp = mostek_read(regs + MOSTEK_CREG);
tmp |= MSTK_CREG_WRITE;
mostek_write(regs + MOSTEK_CREG, tmp);
MSTK_SET_REG_SEC(regs, sec);
MSTK_SET_REG_MIN(regs, min);
MSTK_SET_REG_HOUR(regs, hrs);
MSTK_SET_REG_DOW(regs, wday);
MSTK_SET_REG_DOM(regs, day);
MSTK_SET_REG_MONTH(regs, mon);
MSTK_SET_REG_YEAR(regs, yrs - MSTK_YEAR_ZERO);
tmp = mostek_read(regs + MOSTEK_CREG);
tmp &= ~MSTK_CREG_WRITE;
mostek_write(regs + MOSTEK_CREG, tmp);
spin_unlock_irq(&mostek_lock);
return 0;
}
struct mini_rtc_ops {
void (*get_rtc_time)(struct rtc_time *);
int (*set_rtc_time)(struct rtc_time *);
@ -1487,6 +1555,11 @@ static struct mini_rtc_ops cmos_rtc_ops = {
};
#endif /* CONFIG_PCI */
static struct mini_rtc_ops mostek_rtc_ops = {
.get_rtc_time = mostek_get_rtc_time,
.set_rtc_time = mostek_set_rtc_time,
};
static struct mini_rtc_ops *mini_rtc_ops;
static inline void mini_get_rtc_time(struct rtc_time *time)
@ -1615,6 +1688,8 @@ static int __init rtc_mini_init(void)
else if (ds1287_regs)
mini_rtc_ops = &cmos_rtc_ops;
#endif /* CONFIG_PCI */
else if (mstk48t02_regs)
mini_rtc_ops = &mostek_rtc_ops;
else
return -ENODEV;