sh: Kill off the rest of the legacy rtc mess.

With the new RTC class driver, we can get rid of most of the
old left over cruft.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/Makefile

@@ -8,6 +8,5 @@ obj-$(CONFIG_CPU_SH2)		+= sh2/
 obj-$(CONFIG_CPU_SH3)		+= sh3/
 obj-$(CONFIG_CPU_SH4)		+= sh4/
 
-obj-$(CONFIG_SH_RTC)		+= rtc.o
 obj-$(CONFIG_UBC_WAKEUP)	+= ubc.o
 obj-$(CONFIG_SH_ADC)		+= adc.o

arch/sh/kernel/cpu/irq/ipr.c

@@ -124,7 +124,7 @@ void __init init_IRQ(void)
 #ifndef CONFIG_CPU_SUBTYPE_SH7780
 	make_ipr_irq(TIMER_IRQ, TIMER_IPR_ADDR, TIMER_IPR_POS, TIMER_PRIORITY);
 	make_ipr_irq(TIMER1_IRQ, TIMER1_IPR_ADDR, TIMER1_IPR_POS, TIMER1_PRIORITY);
-#if defined(CONFIG_SH_RTC)
+#ifdef RTC_IRQ
 	make_ipr_irq(RTC_IRQ, RTC_IPR_ADDR, RTC_IPR_POS, RTC_PRIORITY);
 #endif
 

arch/sh/kernel/cpu/rtc.c

@@ -1,128 +0,0 @@
-/*
- * linux/arch/sh/kernel/rtc.c -- SH3 / SH4 on-chip RTC support
- *
- *  Copyright (C) 2000  Philipp Rumpf <prumpf@tux.org>
- *  Copyright (C) 1999  Tetsuya Okada & Niibe Yutaka
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/time.h>
-#include <linux/bcd.h>
-#include <asm/io.h>
-#include <asm/rtc.h>
-
-void sh_rtc_gettimeofday(struct timespec *ts)
-{
-	unsigned int sec128, sec, sec2, min, hr, wk, day, mon, yr, yr100, cf_bit;
-	unsigned long flags;
-
- again:
-	do {
-		local_irq_save(flags);
-		ctrl_outb(0, RCR1);  /* Clear CF-bit */
-		sec128 = ctrl_inb(R64CNT);
-		sec = ctrl_inb(RSECCNT);
-		min = ctrl_inb(RMINCNT);
-		hr  = ctrl_inb(RHRCNT);
-		wk  = ctrl_inb(RWKCNT);
-		day = ctrl_inb(RDAYCNT);
-		mon = ctrl_inb(RMONCNT);
-#if defined(CONFIG_CPU_SH4)
-		yr  = ctrl_inw(RYRCNT);
-		yr100 = (yr >> 8);
-		yr &= 0xff;
-#else
-		yr  = ctrl_inb(RYRCNT);
-		yr100 = (yr == 0x99) ? 0x19 : 0x20;
-#endif
-		sec2 = ctrl_inb(R64CNT);
-		cf_bit = ctrl_inb(RCR1) & RCR1_CF;
-		local_irq_restore(flags);
-	} while (cf_bit != 0 || ((sec128 ^ sec2) & RTC_BIT_INVERTED) != 0);
-
-	BCD_TO_BIN(yr100);
-	BCD_TO_BIN(yr);
-	BCD_TO_BIN(mon);
-	BCD_TO_BIN(day);
-	BCD_TO_BIN(hr);
-	BCD_TO_BIN(min);
-	BCD_TO_BIN(sec);
-
-	if (yr > 99 || mon < 1 || mon > 12 || day > 31 || day < 1 ||
-	    hr > 23 || min > 59 || sec > 59) {
-		printk(KERN_ERR
-		       "SH RTC: invalid value, resetting to 1 Jan 2000\n");
-		local_irq_save(flags);
-		ctrl_outb(RCR2_RESET, RCR2);  /* Reset & Stop */
-		ctrl_outb(0, RSECCNT);
-		ctrl_outb(0, RMINCNT);
-		ctrl_outb(0, RHRCNT);
-		ctrl_outb(6, RWKCNT);
-		ctrl_outb(1, RDAYCNT);
-		ctrl_outb(1, RMONCNT);
-#if defined(CONFIG_CPU_SH4)
-		ctrl_outw(0x2000, RYRCNT);
-#else
-		ctrl_outb(0, RYRCNT);
-#endif
-		ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2);  /* Start */
-		goto again;
-	}
-
-#if RTC_BIT_INVERTED != 0
-	if ((sec128 & RTC_BIT_INVERTED))
-		sec--;
-#endif
-
-	ts->tv_sec = mktime(yr100 * 100 + yr, mon, day, hr, min, sec);
-	ts->tv_nsec = ((sec128 * 1000000) / 128) * 1000;
-}
-
-/*
- * Changed to only care about tv_sec, and not the full timespec struct
- * (i.e. tv_nsec).  It can easily be switched to timespec for future cpus
- * that support setting usec or nsec RTC values.
- */
-int sh_rtc_settimeofday(const time_t secs)
-{
-	int retval = 0;
-	int real_seconds, real_minutes, cmos_minutes;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	ctrl_outb(RCR2_RESET, RCR2);  /* Reset pre-scaler & stop RTC */
-
-	cmos_minutes = ctrl_inb(RMINCNT);
-	BCD_TO_BIN(cmos_minutes);
-
-	/*
-	 * since we're only adjusting minutes and seconds,
-	 * don't interfere with hour overflow. This avoids
-	 * messing with unknown time zones but requires your
-	 * RTC not to be off by more than 15 minutes
-	 */
-	real_seconds = secs % 60;
-	real_minutes = secs / 60;
-	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1)
-		real_minutes += 30;	/* correct for half hour time zone */
-	real_minutes %= 60;
-
-	if (abs(real_minutes - cmos_minutes) < 30) {
-		BIN_TO_BCD(real_seconds);
-		BIN_TO_BCD(real_minutes);
-		ctrl_outb(real_seconds, RSECCNT);
-		ctrl_outb(real_minutes, RMINCNT);
-	} else {
-		printk(KERN_WARNING
-		       "set_rtc_time: can't update from %d to %d\n",
-		       cmos_minutes, real_minutes);
-		retval = -1;
-	}
-
-	ctrl_outb(RCR2_RTCEN|RCR2_START, RCR2);  /* Start RTC */
-	local_irq_restore(flags);
-
-	return retval;
-}