sparc: prepare kernel/ for unification

o sparc32 files with identical names to sparc64 renamed to <name>_32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
  - use obj-$(CONFIG_SPARC32) for sparc32 specific files
  - use <name>_$(BITS) for files where sparc64 has a _64 variant
  - sparc64 directly include a few files where sparc32 builds them,
    refer to these files directly (no BITS)
  - sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_task

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 328 deletions

diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
deleted file mode 100644
index 00f7383c7657..000000000000
--- a/arch/sparc/kernel/time.c
+++ /dev/null
@@ -1,328 +0,0 @@
-/* linux/arch/sparc/kernel/time.c
- *
- * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
- * Copyright (C) 1996 Thomas K. Dyas (tdyas@eden.rutgers.edu)
- *
- * Chris Davis (cdavis@cois.on.ca) 03/27/1998
- * Added support for the intersil on the sun4/4200
- *
- * Gleb Raiko (rajko@mech.math.msu.su) 08/18/1998
- * Support for MicroSPARC-IIep, PCI CPU.
- *
- * This file handles the Sparc specific time handling details.
- *
- * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
- *		"A Kernel Model for Precision Timekeeping" by Dave Mills
- */
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
-#include <linux/rtc.h>
-#include <linux/rtc/m48t59.h>
-#include <linux/timex.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/profile.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-
-#include <asm/oplib.h>
-#include <asm/timer.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/idprom.h>
-#include <asm/machines.h>
-#include <asm/page.h>
-#include <asm/pcic.h>
-#include <asm/irq_regs.h>
-
-#include "irq.h"
-
-DEFINE_SPINLOCK(rtc_lock);
-static int set_rtc_mmss(unsigned long);
-static int sbus_do_settimeofday(struct timespec *tv);
-
-unsigned long profile_pc(struct pt_regs *regs)
-{
-	extern char __copy_user_begin[], __copy_user_end[];
-	extern char __atomic_begin[], __atomic_end[];
-	extern char __bzero_begin[], __bzero_end[];
-
-	unsigned long pc = regs->pc;
-
-	if (in_lock_functions(pc) ||
-	    (pc >= (unsigned long) __copy_user_begin &&
-	     pc < (unsigned long) __copy_user_end) ||
-	    (pc >= (unsigned long) __atomic_begin &&
-	     pc < (unsigned long) __atomic_end) ||
-	    (pc >= (unsigned long) __bzero_begin &&
-	     pc < (unsigned long) __bzero_end))
-		pc = regs->u_regs[UREG_RETPC];
-	return pc;
-}
-
-EXPORT_SYMBOL(profile_pc);
-
-__volatile__ unsigned int *master_l10_counter;
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-
-#define TICK_SIZE (tick_nsec / 1000)
-
-static irqreturn_t timer_interrupt(int dummy, void *dev_id)
-{
-	/* last time the cmos clock got updated */
-	static long last_rtc_update;
-
-#ifndef CONFIG_SMP
-	profile_tick(CPU_PROFILING);
-#endif
-
-	/* Protect counter clear so that do_gettimeoffset works */
-	write_seqlock(&xtime_lock);
-
-	clear_clock_irq();
-
-	do_timer(1);
-
-	/* Determine when to update the Mostek clock. */
-	if (ntp_synced() &&
-	    xtime.tv_sec > last_rtc_update + 660 &&
-	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
-	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
-	  if (set_rtc_mmss(xtime.tv_sec) == 0)
-	    last_rtc_update = xtime.tv_sec;
-	  else
-	    last_rtc_update = xtime.tv_sec - 600; /* do it again in 60 s */
-	}
-	write_sequnlock(&xtime_lock);
-
-#ifndef CONFIG_SMP
-	update_process_times(user_mode(get_irq_regs()));
-#endif
-	return IRQ_HANDLED;
-}
-
-static unsigned char mostek_read_byte(struct device *dev, u32 ofs)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
-
-	return readb(pdata->ioaddr + ofs);
-}
-
-static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
-
-	writeb(val, pdata->ioaddr + ofs);
-}
-
-static struct m48t59_plat_data m48t59_data = {
-	.read_byte = mostek_read_byte,
-	.write_byte = mostek_write_byte,
-};
-
-/* resource is set at runtime */
-static struct platform_device m48t59_rtc = {
-	.name		= "rtc-m48t59",
-	.id		= 0,
-	.num_resources	= 1,
-	.dev	= {
-		.platform_data = &m48t59_data,
-	},
-};
-
-static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
-{
-	struct device_node *dp = op->node;
-	const char *model = of_get_property(dp, "model", NULL);
-
-	if (!model)
-		return -ENODEV;
-
-	m48t59_rtc.resource = &op->resource[0];
-	if (!strcmp(model, "mk48t02")) {
-		/* Map the clock register io area read-only */
-		m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
-						2048, "rtc-m48t59");
-		m48t59_data.type = M48T59RTC_TYPE_M48T02;
-	} else if (!strcmp(model, "mk48t08")) {
-		m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
-						8192, "rtc-m48t59");
-		m48t59_data.type = M48T59RTC_TYPE_M48T08;
-	} else
-		return -ENODEV;
-
-	if (platform_device_register(&m48t59_rtc) < 0)
-		printk(KERN_ERR "Registering RTC device failed\n");
-
-	return 0;
-}
-
-static struct of_device_id __initdata clock_match[] = {
-	{
-		.name = "eeprom",
-	},
-	{},
-};
-
-static struct of_platform_driver clock_driver = {
-	.match_table	= clock_match,
-	.probe		= clock_probe,
-	.driver		= {
-		.name	= "rtc",
-	},
-};
-
-
-/* Probe for the mostek real time clock chip. */
-static int __init clock_init(void)
-{
-	return of_register_driver(&clock_driver, &of_platform_bus_type);
-}
-
-/* Must be after subsys_initcall() so that busses are probed.  Must
- * be before device_initcall() because things like the RTC driver
- * need to see the clock registers.
- */
-fs_initcall(clock_init);
-
-static void __init sbus_time_init(void)
-{
-
-	BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
-	btfixup();
-
-	sparc_init_timers(timer_interrupt);
-	
-	/* Now that OBP ticker has been silenced, it is safe to enable IRQ. */
-	local_irq_enable();
-}
-
-void __init time_init(void)
-{
-#ifdef CONFIG_PCI
-	extern void pci_time_init(void);
-	if (pcic_present()) {
-		pci_time_init();
-		return;
-	}
-#endif
-	sbus_time_init();
-}
-
-static inline unsigned long do_gettimeoffset(void)
-{
-	unsigned long val = *master_l10_counter;
-	unsigned long usec = (val >> 10) & 0x1fffff;
-
-	/* Limit hit?  */
-	if (val & 0x80000000)
-		usec += 1000000 / HZ;
-
-	return usec;
-}
-
-/* Ok, my cute asm atomicity trick doesn't work anymore.
- * There are just too many variables that need to be protected
- * now (both members of xtime, et al.)
- */
-void do_gettimeofday(struct timeval *tv)
-{
-	unsigned long flags;
-	unsigned long seq;
-	unsigned long usec, sec;
-	unsigned long max_ntp_tick = tick_usec - tickadj;
-
-	do {
-		seq = read_seqbegin_irqsave(&xtime_lock, flags);
-		usec = do_gettimeoffset();
-
-		/*
-		 * If time_adjust is negative then NTP is slowing the clock
-		 * so make sure not to go into next possible interval.
-		 * Better to lose some accuracy than have time go backwards..
-		 */
-		if (unlikely(time_adjust < 0))
-			usec = min(usec, max_ntp_tick);
-
-		sec = xtime.tv_sec;
-		usec += (xtime.tv_nsec / 1000);
-	} while (read_seqretry_irqrestore(&xtime_lock, seq, flags));
-
-	while (usec >= 1000000) {
-		usec -= 1000000;
-		sec++;
-	}
-
-	tv->tv_sec = sec;
-	tv->tv_usec = usec;
-}
-
-EXPORT_SYMBOL(do_gettimeofday);
-
-int do_settimeofday(struct timespec *tv)
-{
-	int ret;
-
-	write_seqlock_irq(&xtime_lock);
-	ret = bus_do_settimeofday(tv);
-	write_sequnlock_irq(&xtime_lock);
-	clock_was_set();
-	return ret;
-}
-
-EXPORT_SYMBOL(do_settimeofday);
-
-static int sbus_do_settimeofday(struct timespec *tv)
-{
-	time_t wtm_sec, sec = tv->tv_sec;
-	long wtm_nsec, nsec = tv->tv_nsec;
-
-	if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC)
-		return -EINVAL;
-
-	/*
-	 * This is revolting. We need to set "xtime" correctly. However, the
-	 * value in this location is the value at the most recent update of
-	 * wall time.  Discover what correction gettimeofday() would have
-	 * made, and then undo it!
-	 */
-	nsec -= 1000 * do_gettimeoffset();
-
-	wtm_sec  = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec);
-	wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec);
-
-	set_normalized_timespec(&xtime, sec, nsec);
-	set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec);
-
-	ntp_clear();
-	return 0;
-}
-
-static int set_rtc_mmss(unsigned long secs)
-{
-	struct rtc_device *rtc = rtc_class_open("rtc0");
-	int err = -1;
-
-	if (rtc) {
-		err = rtc_set_mmss(rtc, secs);
-		rtc_class_close(rtc);
-	}
-
-	return err;
-}