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[SPARC64]: Handle mostek clock type in mini_rtc driver.
Now that drivers/sbus/char/rtc.c is sparc32 only, we need this. Signed-off-by: David S. Miller <davem@davemloft.net>
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1 changed files with 75 additions and 0 deletions
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@ -1460,6 +1460,74 @@ static int cmos_set_rtc_time(struct rtc_time *rtc_tm)
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}
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#endif /* CONFIG_PCI */
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static void mostek_get_rtc_time(struct rtc_time *rtc_tm)
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{
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void __iomem *regs = mstk48t02_regs;
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u8 tmp;
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spin_lock_irq(&mostek_lock);
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tmp = mostek_read(regs + MOSTEK_CREG);
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tmp |= MSTK_CREG_READ;
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mostek_write(regs + MOSTEK_CREG, tmp);
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rtc_tm->tm_sec = MSTK_REG_SEC(regs);
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rtc_tm->tm_min = MSTK_REG_MIN(regs);
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rtc_tm->tm_hour = MSTK_REG_HOUR(regs);
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rtc_tm->tm_mday = MSTK_REG_DOM(regs);
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rtc_tm->tm_mon = MSTK_REG_MONTH(regs);
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rtc_tm->tm_year = MSTK_CVT_YEAR( MSTK_REG_YEAR(regs) );
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rtc_tm->tm_wday = MSTK_REG_DOW(regs);
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tmp = mostek_read(regs + MOSTEK_CREG);
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tmp &= ~MSTK_CREG_READ;
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mostek_write(regs + MOSTEK_CREG, tmp);
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spin_unlock_irq(&mostek_lock);
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rtc_tm->tm_mon--;
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rtc_tm->tm_wday--;
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rtc_tm->tm_year -= 1900;
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}
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static int mostek_set_rtc_time(struct rtc_time *rtc_tm)
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{
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unsigned char mon, day, hrs, min, sec, wday;
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void __iomem *regs = mstk48t02_regs;
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unsigned int yrs;
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u8 tmp;
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yrs = rtc_tm->tm_year + 1900;
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mon = rtc_tm->tm_mon + 1;
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day = rtc_tm->tm_mday;
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wday = rtc_tm->tm_wday + 1;
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hrs = rtc_tm->tm_hour;
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min = rtc_tm->tm_min;
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sec = rtc_tm->tm_sec;
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spin_lock_irq(&mostek_lock);
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tmp = mostek_read(regs + MOSTEK_CREG);
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tmp |= MSTK_CREG_WRITE;
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mostek_write(regs + MOSTEK_CREG, tmp);
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MSTK_SET_REG_SEC(regs, sec);
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MSTK_SET_REG_MIN(regs, min);
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MSTK_SET_REG_HOUR(regs, hrs);
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MSTK_SET_REG_DOW(regs, wday);
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MSTK_SET_REG_DOM(regs, day);
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MSTK_SET_REG_MONTH(regs, mon);
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MSTK_SET_REG_YEAR(regs, yrs - MSTK_YEAR_ZERO);
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tmp = mostek_read(regs + MOSTEK_CREG);
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tmp &= ~MSTK_CREG_WRITE;
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mostek_write(regs + MOSTEK_CREG, tmp);
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spin_unlock_irq(&mostek_lock);
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return 0;
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}
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struct mini_rtc_ops {
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void (*get_rtc_time)(struct rtc_time *);
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int (*set_rtc_time)(struct rtc_time *);
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@ -1487,6 +1555,11 @@ static struct mini_rtc_ops cmos_rtc_ops = {
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};
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#endif /* CONFIG_PCI */
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static struct mini_rtc_ops mostek_rtc_ops = {
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.get_rtc_time = mostek_get_rtc_time,
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.set_rtc_time = mostek_set_rtc_time,
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};
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static struct mini_rtc_ops *mini_rtc_ops;
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static inline void mini_get_rtc_time(struct rtc_time *time)
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@ -1615,6 +1688,8 @@ static int __init rtc_mini_init(void)
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else if (ds1287_regs)
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mini_rtc_ops = &cmos_rtc_ops;
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#endif /* CONFIG_PCI */
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else if (mstk48t02_regs)
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mini_rtc_ops = &mostek_rtc_ops;
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else
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return -ENODEV;
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