powerpc: Merge maple support code to arch/powerpc/platforms/maple

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 0 insertions, 178 deletions

diff --git a/arch/ppc64/kernel/maple_time.c b/arch/ppc64/kernel/maple_time.c
deleted file mode 100644
index 445cb74..0000000
--- a/arch/ppc64/kernel/maple_time.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- *  arch/ppc64/kernel/maple_time.c
- *
- *  (c) Copyright 2004 Benjamin Herrenschmidt (benh@kernel.crashing.org),
- *                     IBM Corp. 
- *
- *  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.
- *
- */
-
-#undef DEBUG
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#include <linux/interrupt.h>
-#include <linux/mc146818rtc.h>
-#include <linux/bcd.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-extern void GregorianDay(struct rtc_time * tm);
-
-static int maple_rtc_addr;
-
-static int maple_clock_read(int addr)
-{
-	outb_p(addr, maple_rtc_addr);
-	return inb_p(maple_rtc_addr+1);
-}
-
-static void maple_clock_write(unsigned long val, int addr)
-{
-	outb_p(addr, maple_rtc_addr);
-	outb_p(val, maple_rtc_addr+1);
-}
-
-void maple_get_rtc_time(struct rtc_time *tm)
-{
-	int uip, i;
-
-	/* The Linux interpretation of the CMOS clock register contents:
-	 * When the Update-In-Progress (UIP) flag goes from 1 to 0, the
-	 * RTC registers show the second which has precisely just started.
-	 * Let's hope other operating systems interpret the RTC the same way.
-	 */
-
-	/* Since the UIP flag is set for about 2.2 ms and the clock
-	 * is typically written with a precision of 1 jiffy, trying
-	 * to obtain a precision better than a few milliseconds is
-	 * an illusion. Only consistency is interesting, this also
-	 * allows to use the routine for /dev/rtc without a potential
-	 * 1 second kernel busy loop triggered by any reader of /dev/rtc.
-	 */
-
-	for (i = 0; i<1000000; i++) {
-		uip = maple_clock_read(RTC_FREQ_SELECT);
-		tm->tm_sec = maple_clock_read(RTC_SECONDS);
-		tm->tm_min = maple_clock_read(RTC_MINUTES);
-		tm->tm_hour = maple_clock_read(RTC_HOURS);
-		tm->tm_mday = maple_clock_read(RTC_DAY_OF_MONTH);
-		tm->tm_mon = maple_clock_read(RTC_MONTH);
-		tm->tm_year = maple_clock_read(RTC_YEAR);
-		uip |= maple_clock_read(RTC_FREQ_SELECT);
-		if ((uip & RTC_UIP)==0)
-			break;
-	}
-
-	if (!(maple_clock_read(RTC_CONTROL) & RTC_DM_BINARY)
-	    || RTC_ALWAYS_BCD) {
-		BCD_TO_BIN(tm->tm_sec);
-		BCD_TO_BIN(tm->tm_min);
-		BCD_TO_BIN(tm->tm_hour);
-		BCD_TO_BIN(tm->tm_mday);
-		BCD_TO_BIN(tm->tm_mon);
-		BCD_TO_BIN(tm->tm_year);
-	  }
-	if ((tm->tm_year + 1900) < 1970)
-		tm->tm_year += 100;
-
-	GregorianDay(tm);
-}
-
-int maple_set_rtc_time(struct rtc_time *tm)
-{
-	unsigned char save_control, save_freq_select;
-	int sec, min, hour, mon, mday, year;
-
-	spin_lock(&rtc_lock);
-
-	save_control = maple_clock_read(RTC_CONTROL); /* tell the clock it's being set */
-
-	maple_clock_write((save_control|RTC_SET), RTC_CONTROL);
-
-	save_freq_select = maple_clock_read(RTC_FREQ_SELECT); /* stop and reset prescaler */
-
-	maple_clock_write((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-	sec = tm->tm_sec;
-	min = tm->tm_min;
-	hour = tm->tm_hour;
-	mon = tm->tm_mon;
-	mday = tm->tm_mday;
-	year = tm->tm_year;
-
-	if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-		BIN_TO_BCD(sec);
-		BIN_TO_BCD(min);
-		BIN_TO_BCD(hour);
-		BIN_TO_BCD(mon);
-		BIN_TO_BCD(mday);
-		BIN_TO_BCD(year);
-	}
-	maple_clock_write(sec, RTC_SECONDS);
-	maple_clock_write(min, RTC_MINUTES);
-	maple_clock_write(hour, RTC_HOURS);
-	maple_clock_write(mon, RTC_MONTH);
-	maple_clock_write(mday, RTC_DAY_OF_MONTH);
-	maple_clock_write(year, RTC_YEAR);
-
-	/* The following flags have to be released exactly in this order,
-	 * otherwise the DS12887 (popular MC146818A clone with integrated
-	 * battery and quartz) will not reset the oscillator and will not
-	 * update precisely 500 ms later. You won't find this mentioned in
-	 * the Dallas Semiconductor data sheets, but who believes data
-	 * sheets anyway ...                           -- Markus Kuhn
-	 */
-	maple_clock_write(save_control, RTC_CONTROL);
-	maple_clock_write(save_freq_select, RTC_FREQ_SELECT);
-
-	spin_unlock(&rtc_lock);
-
-	return 0;
-}
-
-unsigned long __init maple_get_boot_time(void)
-{
-	struct rtc_time tm;
-	struct device_node *rtcs;
-
-	rtcs = find_compatible_devices("rtc", "pnpPNP,b00");
-	if (rtcs && rtcs->addrs) {
-		maple_rtc_addr = rtcs->addrs[0].address;
-		printk(KERN_INFO "Maple: Found RTC at 0x%x\n", maple_rtc_addr);
-	} else {
-		maple_rtc_addr = RTC_PORT(0); /* legacy address */
-		printk(KERN_INFO "Maple: No device node for RTC, assuming "
-		       "legacy address (0x%x)\n", maple_rtc_addr);
-	}
-	
-	maple_get_rtc_time(&tm);
-	return mktime(tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
-		      tm.tm_hour, tm.tm_min, tm.tm_sec);
-}
-