1 files changed, 0 insertions, 179 deletions
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
deleted file mode 100644
index 77758289725..00000000000
--- a/arch/blackfin/mach-common/cpufreq.c
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * Blackfin core clock scaling
- *
- * Copyright 2008-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/fs.h>
-#include <asm/blackfin.h>
-#include <asm/time.h>
-#include <asm/dpmc.h>
-
-/* this is the table of CCLK frequencies, in Hz */
-/* .index is the entry in the auxillary dpm_state_table[] */
-static struct cpufreq_frequency_table bfin_freq_table[] = {
-	{
-		.frequency = CPUFREQ_TABLE_END,
-		.index = 0,
-	},
-	{
-		.frequency = CPUFREQ_TABLE_END,
-		.index = 1,
-	},
-	{
-		.frequency = CPUFREQ_TABLE_END,
-		.index = 2,
-	},
-	{
-		.frequency = CPUFREQ_TABLE_END,
-		.index = 0,
-	},
-};
-
-static struct bfin_dpm_state {
-	unsigned int csel; /* system clock divider */
-	unsigned int tscale; /* change the divider on the core timer interrupt */
-} dpm_state_table[3];
-
-/*
-   normalized to maximum frequncy offset for CYCLES,
-   used in time-ts cycles clock source, but could be used
-   somewhere also.
- */
-unsigned long long __bfin_cycles_off;
-unsigned int __bfin_cycles_mod;
-
-/**************************************************************************/
-
-static unsigned int bfin_getfreq_khz(unsigned int cpu)
-{
-	/* The driver only support single cpu */
-	if (cpu != 0)
-		return -1;
-
-	return get_cclk() / 1000;
-}
-
-
-static int bfin_target(struct cpufreq_policy *policy,
-			unsigned int target_freq, unsigned int relation)
-{
-	unsigned int index, plldiv, tscale;
-	unsigned long flags, cclk_hz;
-	struct cpufreq_freqs freqs;
-	cycles_t cycles;
-
-	if (cpufreq_frequency_table_target(policy, bfin_freq_table,
-		 target_freq, relation, &index))
-		return -EINVAL;
-
-	cclk_hz = bfin_freq_table[index].frequency;
-
-	freqs.old = bfin_getfreq_khz(0);
-	freqs.new = cclk_hz;
-	freqs.cpu = 0;
-
-	pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
-		 cclk_hz, target_freq, freqs.old);
-
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-	local_irq_save_hw(flags);
-		plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel;
-		tscale = dpm_state_table[index].tscale;
-		bfin_write_PLL_DIV(plldiv);
-		/* we have to adjust the core timer, because it is using cclk */
-		bfin_write_TSCALE(tscale);
-		cycles = get_cycles();
-		SSYNC();
-	cycles += 10; /* ~10 cycles we lose after get_cycles() */
-	__bfin_cycles_off += (cycles << __bfin_cycles_mod) - (cycles << index);
-	__bfin_cycles_mod = index;
-	local_irq_restore_hw(flags);
-	/* TODO: just test case for cycles clock source, remove later */
-	pr_debug("cpufreq: done\n");
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	return 0;
-}
-
-static int bfin_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, bfin_freq_table);
-}
-
-static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
-{
-
-	unsigned long cclk, sclk, csel, min_cclk;
-	int index;
-
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	cclk = get_cclk() / 1000;
-	sclk = get_sclk() / 1000;
-
-#if ANOMALY_05000273 || ANOMALY_05000274 || \
-	(!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_EXTMEM_DCACHEABLE))
-	min_cclk = sclk * 2;
-#else
-	min_cclk = sclk;
-#endif
-	csel = ((bfin_read_PLL_DIV() & CSEL) >> 4);
-
-	for (index = 0;  (cclk >> index) >= min_cclk && csel <= 3; index++, csel++) {
-		bfin_freq_table[index].frequency = cclk >> index;
-		dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */
-		dpm_state_table[index].tscale =  (TIME_SCALE / (1 << csel)) - 1;
-
-		pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n",
-						 bfin_freq_table[index].frequency,
-						 dpm_state_table[index].csel,
-						 dpm_state_table[index].tscale);
-	}
-
-	policy->cpuinfo.transition_latency = 50000; /* 50us assumed */
-
-	/*Now ,only support one cpu */
-	policy->cur = cclk;
-	cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu);
-	return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table);
-}
-
-static struct freq_attr *bfin_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-static struct cpufreq_driver bfin_driver = {
-	.verify = bfin_verify_speed,
-	.target = bfin_target,
-	.get = bfin_getfreq_khz,
-	.init = __bfin_cpu_init,
-	.name = "bfin cpufreq",
-	.owner = THIS_MODULE,
-	.attr = bfin_freq_attr,
-};
-
-static int __init bfin_cpu_init(void)
-{
-	return cpufreq_register_driver(&bfin_driver);
-}
-
-static void __exit bfin_cpu_exit(void)
-{
-	cpufreq_unregister_driver(&bfin_driver);
-}
-
-MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("cpufreq driver for Blackfin");
-MODULE_LICENSE("GPL");
-
-module_init(bfin_cpu_init);
-module_exit(bfin_cpu_exit);