1 files changed, 0 insertions, 334 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/time.c b/ANDROID_3.4.5/arch/powerpc/platforms/powermac/time.c
deleted file mode 100644
index 8680bb69..00000000
--- a/ANDROID_3.4.5/arch/powerpc/platforms/powermac/time.c
+++ /dev/null
@@ -1,334 +0,0 @@
-/*
- * Support for periodic interrupts (100 per second) and for getting
- * the current time from the RTC on Power Macintoshes.
- *
- * We use the decrementer register for our periodic interrupts.
- *
- * Paul Mackerras	August 1996.
- * Copyright (C) 1996 Paul Mackerras.
- * Copyright (C) 2003-2005 Benjamin Herrenschmidt.
- *
- */
-#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/cuda.h>
-#include <linux/pmu.h>
-#include <linux/interrupt.h>
-#include <linux/hardirq.h>
-#include <linux/rtc.h>
-
-#include <asm/sections.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/machdep.h>
-#include <asm/time.h>
-#include <asm/nvram.h>
-#include <asm/smu.h>
-
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(x...) printk(x)
-#else
-#define DBG(x...)
-#endif
-
-/* Apparently the RTC stores seconds since 1 Jan 1904 */
-#define RTC_OFFSET	2082844800
-
-/*
- * Calibrate the decrementer frequency with the VIA timer 1.
- */
-#define VIA_TIMER_FREQ_6	4700000	/* time 1 frequency * 6 */
-
-/* VIA registers */
-#define RS		0x200		/* skip between registers */
-#define T1CL		(4*RS)		/* Timer 1 ctr/latch (low 8 bits) */
-#define T1CH		(5*RS)		/* Timer 1 counter (high 8 bits) */
-#define T1LL		(6*RS)		/* Timer 1 latch (low 8 bits) */
-#define T1LH		(7*RS)		/* Timer 1 latch (high 8 bits) */
-#define ACR		(11*RS)		/* Auxiliary control register */
-#define IFR		(13*RS)		/* Interrupt flag register */
-
-/* Bits in ACR */
-#define T1MODE		0xc0		/* Timer 1 mode */
-#define T1MODE_CONT	0x40		/*  continuous interrupts */
-
-/* Bits in IFR and IER */
-#define T1_INT		0x40		/* Timer 1 interrupt */
-
-long __init pmac_time_init(void)
-{
-	s32 delta = 0;
-#ifdef CONFIG_NVRAM
-	int dst;
-	
-	delta = ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x9)) << 16;
-	delta |= ((s32)pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xa)) << 8;
-	delta |= pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0xb);
-	if (delta & 0x00800000UL)
-		delta |= 0xFF000000UL;
-	dst = ((pmac_xpram_read(PMAC_XPRAM_MACHINE_LOC + 0x8) & 0x80) != 0);
-	printk("GMT Delta read from XPRAM: %d minutes, DST: %s\n", delta/60,
-		dst ? "on" : "off");
-#endif
-	return delta;
-}
-
-#if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU)
-static void to_rtc_time(unsigned long now, struct rtc_time *tm)
-{
-	to_tm(now, tm);
-	tm->tm_year -= 1900;
-	tm->tm_mon -= 1;
-}
-#endif
-
-#if defined(CONFIG_ADB_CUDA) || defined(CONFIG_ADB_PMU) || \
-    defined(CONFIG_PMAC_SMU)
-static unsigned long from_rtc_time(struct 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);
-}
-#endif
-
-#ifdef CONFIG_ADB_CUDA
-static unsigned long cuda_get_time(void)
-{
-	struct adb_request req;
-	unsigned int now;
-
-	if (cuda_request(&req, NULL, 2, CUDA_PACKET, CUDA_GET_TIME) < 0)
-		return 0;
-	while (!req.complete)
-		cuda_poll();
-	if (req.reply_len != 7)
-		printk(KERN_ERR "cuda_get_time: got %d byte reply\n",
-		       req.reply_len);
-	now = (req.reply[3] << 24) + (req.reply[4] << 16)
-		+ (req.reply[5] << 8) + req.reply[6];
-	return ((unsigned long)now) - RTC_OFFSET;
-}
-
-#define cuda_get_rtc_time(tm)	to_rtc_time(cuda_get_time(), (tm))
-
-static int cuda_set_rtc_time(struct rtc_time *tm)
-{
-	unsigned int nowtime;
-	struct adb_request req;
-
-	nowtime = from_rtc_time(tm) + RTC_OFFSET;
-	if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME,
-			 nowtime >> 24, nowtime >> 16, nowtime >> 8,
-			 nowtime) < 0)
-		return -ENXIO;
-	while (!req.complete)
-		cuda_poll();
-	if ((req.reply_len != 3) && (req.reply_len != 7))
-		printk(KERN_ERR "cuda_set_rtc_time: got %d byte reply\n",
-		       req.reply_len);
-	return 0;
-}
-
-#else
-#define cuda_get_time()		0
-#define cuda_get_rtc_time(tm)
-#define cuda_set_rtc_time(tm)	0
-#endif
-
-#ifdef CONFIG_ADB_PMU
-static unsigned long pmu_get_time(void)
-{
-	struct adb_request req;
-	unsigned int now;
-
-	if (pmu_request(&req, NULL, 1, PMU_READ_RTC) < 0)
-		return 0;
-	pmu_wait_complete(&req);
-	if (req.reply_len != 4)
-		printk(KERN_ERR "pmu_get_time: got %d byte reply from PMU\n",
-		       req.reply_len);
-	now = (req.reply[0] << 24) + (req.reply[1] << 16)
-		+ (req.reply[2] << 8) + req.reply[3];
-	return ((unsigned long)now) - RTC_OFFSET;
-}
-
-#define pmu_get_rtc_time(tm)	to_rtc_time(pmu_get_time(), (tm))
-
-static int pmu_set_rtc_time(struct rtc_time *tm)
-{
-	unsigned int nowtime;
-	struct adb_request req;
-
-	nowtime = from_rtc_time(tm) + RTC_OFFSET;
-	if (pmu_request(&req, NULL, 5, PMU_SET_RTC, nowtime >> 24,
-			nowtime >> 16, nowtime >> 8, nowtime) < 0)
-		return -ENXIO;
-	pmu_wait_complete(&req);
-	if (req.reply_len != 0)
-		printk(KERN_ERR "pmu_set_rtc_time: %d byte reply from PMU\n",
-		       req.reply_len);
-	return 0;
-}
-
-#else
-#define pmu_get_time()		0
-#define pmu_get_rtc_time(tm)
-#define pmu_set_rtc_time(tm)	0
-#endif
-
-#ifdef CONFIG_PMAC_SMU
-static unsigned long smu_get_time(void)
-{
-	struct rtc_time tm;
-
-	if (smu_get_rtc_time(&tm, 1))
-		return 0;
-	return from_rtc_time(&tm);
-}
-
-#else
-#define smu_get_time()			0
-#define smu_get_rtc_time(tm, spin)
-#define smu_set_rtc_time(tm, spin)	0
-#endif
-
-/* Can't be __init, it's called when suspending and resuming */
-unsigned long pmac_get_boot_time(void)
-{
-	/* Get the time from the RTC, used only at boot time */
-	switch (sys_ctrler) {
-	case SYS_CTRLER_CUDA:
-		return cuda_get_time();
-	case SYS_CTRLER_PMU:
-		return pmu_get_time();
-	case SYS_CTRLER_SMU:
-		return smu_get_time();
-	default:
-		return 0;
-	}
-}
-
-void pmac_get_rtc_time(struct rtc_time *tm)
-{
-	/* Get the time from the RTC, used only at boot time */
-	switch (sys_ctrler) {
-	case SYS_CTRLER_CUDA:
-		cuda_get_rtc_time(tm);
-		break;
-	case SYS_CTRLER_PMU:
-		pmu_get_rtc_time(tm);
-		break;
-	case SYS_CTRLER_SMU:
-		smu_get_rtc_time(tm, 1);
-		break;
-	default:
-		;
-	}
-}
-
-int pmac_set_rtc_time(struct rtc_time *tm)
-{
-	switch (sys_ctrler) {
-	case SYS_CTRLER_CUDA:
-		return cuda_set_rtc_time(tm);
-	case SYS_CTRLER_PMU:
-		return pmu_set_rtc_time(tm);
-	case SYS_CTRLER_SMU:
-		return smu_set_rtc_time(tm, 1);
-	default:
-		return -ENODEV;
-	}
-}
-
-#ifdef CONFIG_PPC32
-/*
- * Calibrate the decrementer register using VIA timer 1.
- * This is used both on powermacs and CHRP machines.
- */
-int __init via_calibrate_decr(void)
-{
-	struct device_node *vias;
-	volatile unsigned char __iomem *via;
-	int count = VIA_TIMER_FREQ_6 / 100;
-	unsigned int dstart, dend;
-	struct resource rsrc;
-
-	vias = of_find_node_by_name(NULL, "via-cuda");
-	if (vias == NULL)
-		vias = of_find_node_by_name(NULL, "via-pmu");
-	if (vias == NULL)
-		vias = of_find_node_by_name(NULL, "via");
-	if (vias == NULL || of_address_to_resource(vias, 0, &rsrc)) {
-	        of_node_put(vias);
-		return 0;
-	}
-	of_node_put(vias);
-	via = ioremap(rsrc.start, resource_size(&rsrc));
-	if (via == NULL) {
-		printk(KERN_ERR "Failed to map VIA for timer calibration !\n");
-		return 0;
-	}
-
-	/* set timer 1 for continuous interrupts */
-	out_8(&via[ACR], (via[ACR] & ~T1MODE) | T1MODE_CONT);
-	/* set the counter to a small value */
-	out_8(&via[T1CH], 2);
-	/* set the latch to `count' */
-	out_8(&via[T1LL], count);
-	out_8(&via[T1LH], count >> 8);
-	/* wait until it hits 0 */
-	while ((in_8(&via[IFR]) & T1_INT) == 0)
-		;
-	dstart = get_dec();
-	/* clear the interrupt & wait until it hits 0 again */
-	in_8(&via[T1CL]);
-	while ((in_8(&via[IFR]) & T1_INT) == 0)
-		;
-	dend = get_dec();
-
-	ppc_tb_freq = (dstart - dend) * 100 / 6;
-
-	iounmap(via);
-
-	return 1;
-}
-#endif
-
-/*
- * Query the OF and get the decr frequency.
- */
-void __init pmac_calibrate_decr(void)
-{
-	generic_calibrate_decr();
-
-#ifdef CONFIG_PPC32
-	/* We assume MacRISC2 machines have correct device-tree
-	 * calibration. That's better since the VIA itself seems
-	 * to be slightly off. --BenH
-	 */
-	if (!of_machine_is_compatible("MacRISC2") &&
-	    !of_machine_is_compatible("MacRISC3") &&
-	    !of_machine_is_compatible("MacRISC4"))
-		if (via_calibrate_decr())
-			return;
-
-	/* Special case: QuickSilver G4s seem to have a badly calibrated
-	 * timebase-frequency in OF, VIA is much better on these. We should
-	 * probably implement calibration based on the KL timer on these
-	 * machines anyway... -BenH
-	 */
-	if (of_machine_is_compatible("PowerMac3,5"))
-		if (via_calibrate_decr())
-			return;
-#endif
-}