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-rw-r--r--arch/sparc/Kconfig23
-rw-r--r--arch/sparc/kernel/Makefile3
-rw-r--r--arch/sparc/kernel/us2e_cpufreq.c408
-rw-r--r--arch/sparc/kernel/us3_cpufreq.c269
4 files changed, 0 insertions, 703 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 3d361f2..c85b761 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -254,29 +254,6 @@ config HOTPLUG_CPU
if SPARC64
source "drivers/cpufreq/Kconfig"
-
-config US3_FREQ
- tristate "UltraSPARC-III CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the CPUFreq driver for UltraSPARC-III processors.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If in doubt, say N.
-
-config US2E_FREQ
- tristate "UltraSPARC-IIe CPU Frequency driver"
- depends on CPU_FREQ
- select CPU_FREQ_TABLE
- help
- This adds the CPUFreq driver for UltraSPARC-IIe processors.
-
- For details, take a look at <file:Documentation/cpu-freq>.
-
- If in doubt, say N.
-
endif
config US3_MC
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 6cf591b..5276fd4 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -102,9 +102,6 @@ obj-$(CONFIG_PCI_MSI) += pci_msi.o
obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o
-# sparc64 cpufreq
-obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o
-obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o
obj-$(CONFIG_US3_MC) += chmc.o
obj-$(CONFIG_KPROBES) += kprobes.o
diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/arch/sparc/kernel/us2e_cpufreq.c
deleted file mode 100644
index 306ae46..0000000
--- a/arch/sparc/kernel/us2e_cpufreq.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support
- *
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
- *
- * Many thanks to Dominik Brodowski for fixing up the cpufreq
- * infrastructure in order to make this driver easier to implement.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/cpufreq.h>
-#include <linux/threads.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-
-#include <asm/asi.h>
-#include <asm/timer.h>
-
-static struct cpufreq_driver *cpufreq_us2e_driver;
-
-struct us2e_freq_percpu_info {
- struct cpufreq_frequency_table table[6];
-};
-
-/* Indexed by cpu number. */
-static struct us2e_freq_percpu_info *us2e_freq_table;
-
-#define HBIRD_MEM_CNTL0_ADDR 0x1fe0000f010UL
-#define HBIRD_ESTAR_MODE_ADDR 0x1fe0000f080UL
-
-/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8. These are controlled
- * in the ESTAR mode control register.
- */
-#define ESTAR_MODE_DIV_1 0x0000000000000000UL
-#define ESTAR_MODE_DIV_2 0x0000000000000001UL
-#define ESTAR_MODE_DIV_4 0x0000000000000003UL
-#define ESTAR_MODE_DIV_6 0x0000000000000002UL
-#define ESTAR_MODE_DIV_8 0x0000000000000004UL
-#define ESTAR_MODE_DIV_MASK 0x0000000000000007UL
-
-#define MCTRL0_SREFRESH_ENAB 0x0000000000010000UL
-#define MCTRL0_REFR_COUNT_MASK 0x0000000000007f00UL
-#define MCTRL0_REFR_COUNT_SHIFT 8
-#define MCTRL0_REFR_INTERVAL 7800
-#define MCTRL0_REFR_CLKS_P_CNT 64
-
-static unsigned long read_hbreg(unsigned long addr)
-{
- unsigned long ret;
-
- __asm__ __volatile__("ldxa [%1] %2, %0"
- : "=&r" (ret)
- : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
- return ret;
-}
-
-static void write_hbreg(unsigned long addr, unsigned long val)
-{
- __asm__ __volatile__("stxa %0, [%1] %2\n\t"
- "membar #Sync"
- : /* no outputs */
- : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
- : "memory");
- if (addr == HBIRD_ESTAR_MODE_ADDR) {
- /* Need to wait 16 clock cycles for the PLL to lock. */
- udelay(1);
- }
-}
-
-static void self_refresh_ctl(int enable)
-{
- unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-
- if (enable)
- mctrl |= MCTRL0_SREFRESH_ENAB;
- else
- mctrl &= ~MCTRL0_SREFRESH_ENAB;
- write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
- (void) read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-}
-
-static void frob_mem_refresh(int cpu_slowing_down,
- unsigned long clock_tick,
- unsigned long old_divisor, unsigned long divisor)
-{
- unsigned long old_refr_count, refr_count, mctrl;
-
- refr_count = (clock_tick * MCTRL0_REFR_INTERVAL);
- refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL);
-
- mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
- old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK)
- >> MCTRL0_REFR_COUNT_SHIFT;
-
- mctrl &= ~MCTRL0_REFR_COUNT_MASK;
- mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT;
- write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl);
- mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR);
-
- if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) {
- unsigned long usecs;
-
- /* We have to wait for both refresh counts (old
- * and new) to go to zero.
- */
- usecs = (MCTRL0_REFR_CLKS_P_CNT *
- (refr_count + old_refr_count) *
- 1000000UL *
- old_divisor) / clock_tick;
- udelay(usecs + 1UL);
- }
-}
-
-static void us2e_transition(unsigned long estar, unsigned long new_bits,
- unsigned long clock_tick,
- unsigned long old_divisor, unsigned long divisor)
-{
- unsigned long flags;
-
- local_irq_save(flags);
-
- estar &= ~ESTAR_MODE_DIV_MASK;
-
- /* This is based upon the state transition diagram in the IIe manual. */
- if (old_divisor == 2 && divisor == 1) {
- self_refresh_ctl(0);
- write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
- frob_mem_refresh(0, clock_tick, old_divisor, divisor);
- } else if (old_divisor == 1 && divisor == 2) {
- frob_mem_refresh(1, clock_tick, old_divisor, divisor);
- write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
- self_refresh_ctl(1);
- } else if (old_divisor == 1 && divisor > 2) {
- us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
- 1, 2);
- us2e_transition(estar, new_bits, clock_tick,
- 2, divisor);
- } else if (old_divisor > 2 && divisor == 1) {
- us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick,
- old_divisor, 2);
- us2e_transition(estar, new_bits, clock_tick,
- 2, divisor);
- } else if (old_divisor < divisor) {
- frob_mem_refresh(0, clock_tick, old_divisor, divisor);
- write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
- } else if (old_divisor > divisor) {
- write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits);
- frob_mem_refresh(1, clock_tick, old_divisor, divisor);
- } else {
- BUG();
- }
-
- local_irq_restore(flags);
-}
-
-static unsigned long index_to_estar_mode(unsigned int index)
-{
- switch (index) {
- case 0:
- return ESTAR_MODE_DIV_1;
-
- case 1:
- return ESTAR_MODE_DIV_2;
-
- case 2:
- return ESTAR_MODE_DIV_4;
-
- case 3:
- return ESTAR_MODE_DIV_6;
-
- case 4:
- return ESTAR_MODE_DIV_8;
-
- default:
- BUG();
- }
-}
-
-static unsigned long index_to_divisor(unsigned int index)
-{
- switch (index) {
- case 0:
- return 1;
-
- case 1:
- return 2;
-
- case 2:
- return 4;
-
- case 3:
- return 6;
-
- case 4:
- return 8;
-
- default:
- BUG();
- }
-}
-
-static unsigned long estar_to_divisor(unsigned long estar)
-{
- unsigned long ret;
-
- switch (estar & ESTAR_MODE_DIV_MASK) {
- case ESTAR_MODE_DIV_1:
- ret = 1;
- break;
- case ESTAR_MODE_DIV_2:
- ret = 2;
- break;
- case ESTAR_MODE_DIV_4:
- ret = 4;
- break;
- case ESTAR_MODE_DIV_6:
- ret = 6;
- break;
- case ESTAR_MODE_DIV_8:
- ret = 8;
- break;
- default:
- BUG();
- }
-
- return ret;
-}
-
-static unsigned int us2e_freq_get(unsigned int cpu)
-{
- cpumask_t cpus_allowed;
- unsigned long clock_tick, estar;
-
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
- clock_tick = sparc64_get_clock_tick(cpu) / 1000;
- estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR);
-
- set_cpus_allowed_ptr(current, &cpus_allowed);
-
- return clock_tick / estar_to_divisor(estar);
-}
-
-static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
- unsigned int index)
-{
- unsigned int cpu = policy->cpu;
- unsigned long new_bits, new_freq;
- unsigned long clock_tick, divisor, old_divisor, estar;
- cpumask_t cpus_allowed;
- struct cpufreq_freqs freqs;
-
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
- new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000;
- new_bits = index_to_estar_mode(index);
- divisor = index_to_divisor(index);
- new_freq /= divisor;
-
- estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR);
-
- old_divisor = estar_to_divisor(estar);
-
- freqs.old = clock_tick / old_divisor;
- freqs.new = new_freq;
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
- if (old_divisor != divisor)
- us2e_transition(estar, new_bits, clock_tick * 1000,
- old_divisor, divisor);
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
- set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us2e_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int new_index = 0;
-
- if (cpufreq_frequency_table_target(policy,
- &us2e_freq_table[policy->cpu].table[0],
- target_freq, relation, &new_index))
- return -EINVAL;
-
- us2e_set_cpu_divider_index(policy, new_index);
-
- return 0;
-}
-
-static int us2e_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &us2e_freq_table[policy->cpu].table[0]);
-}
-
-static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
-{
- unsigned int cpu = policy->cpu;
- unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
- struct cpufreq_frequency_table *table =
- &us2e_freq_table[cpu].table[0];
-
- table[0].index = 0;
- table[0].frequency = clock_tick / 1;
- table[1].index = 1;
- table[1].frequency = clock_tick / 2;
- table[2].index = 2;
- table[2].frequency = clock_tick / 4;
- table[2].index = 3;
- table[2].frequency = clock_tick / 6;
- table[2].index = 4;
- table[2].frequency = clock_tick / 8;
- table[2].index = 5;
- table[3].frequency = CPUFREQ_TABLE_END;
-
- policy->cpuinfo.transition_latency = 0;
- policy->cur = clock_tick;
-
- return cpufreq_frequency_table_cpuinfo(policy, table);
-}
-
-static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- if (cpufreq_us2e_driver)
- us2e_set_cpu_divider_index(policy, 0);
-
- return 0;
-}
-
-static int __init us2e_freq_init(void)
-{
- unsigned long manuf, impl, ver;
- int ret;
-
- if (tlb_type != spitfire)
- return -ENODEV;
-
- __asm__("rdpr %%ver, %0" : "=r" (ver));
- manuf = ((ver >> 48) & 0xffff);
- impl = ((ver >> 32) & 0xffff);
-
- if (manuf == 0x17 && impl == 0x13) {
- struct cpufreq_driver *driver;
-
- ret = -ENOMEM;
- driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
- if (!driver)
- goto err_out;
-
- us2e_freq_table = kzalloc(
- (NR_CPUS * sizeof(struct us2e_freq_percpu_info)),
- GFP_KERNEL);
- if (!us2e_freq_table)
- goto err_out;
-
- driver->init = us2e_freq_cpu_init;
- driver->verify = us2e_freq_verify;
- driver->target = us2e_freq_target;
- driver->get = us2e_freq_get;
- driver->exit = us2e_freq_cpu_exit;
- driver->owner = THIS_MODULE,
- strcpy(driver->name, "UltraSPARC-IIe");
-
- cpufreq_us2e_driver = driver;
- ret = cpufreq_register_driver(driver);
- if (ret)
- goto err_out;
-
- return 0;
-
-err_out:
- if (driver) {
- kfree(driver);
- cpufreq_us2e_driver = NULL;
- }
- kfree(us2e_freq_table);
- us2e_freq_table = NULL;
- return ret;
- }
-
- return -ENODEV;
-}
-
-static void __exit us2e_freq_exit(void)
-{
- if (cpufreq_us2e_driver) {
- cpufreq_unregister_driver(cpufreq_us2e_driver);
- kfree(cpufreq_us2e_driver);
- cpufreq_us2e_driver = NULL;
- kfree(us2e_freq_table);
- us2e_freq_table = NULL;
- }
-}
-
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe");
-MODULE_LICENSE("GPL");
-
-module_init(us2e_freq_init);
-module_exit(us2e_freq_exit);
diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c
deleted file mode 100644
index c71ee14..0000000
--- a/arch/sparc/kernel/us3_cpufreq.c
+++ /dev/null
@@ -1,269 +0,0 @@
-/* us3_cpufreq.c: UltraSPARC-III cpu frequency support
- *
- * Copyright (C) 2003 David S. Miller (davem@redhat.com)
- *
- * Many thanks to Dominik Brodowski for fixing up the cpufreq
- * infrastructure in order to make this driver easier to implement.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/cpufreq.h>
-#include <linux/threads.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-
-#include <asm/head.h>
-#include <asm/timer.h>
-
-static struct cpufreq_driver *cpufreq_us3_driver;
-
-struct us3_freq_percpu_info {
- struct cpufreq_frequency_table table[4];
-};
-
-/* Indexed by cpu number. */
-static struct us3_freq_percpu_info *us3_freq_table;
-
-/* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled
- * in the Safari config register.
- */
-#define SAFARI_CFG_DIV_1 0x0000000000000000UL
-#define SAFARI_CFG_DIV_2 0x0000000040000000UL
-#define SAFARI_CFG_DIV_32 0x0000000080000000UL
-#define SAFARI_CFG_DIV_MASK 0x00000000C0000000UL
-
-static unsigned long read_safari_cfg(void)
-{
- unsigned long ret;
-
- __asm__ __volatile__("ldxa [%%g0] %1, %0"
- : "=&r" (ret)
- : "i" (ASI_SAFARI_CONFIG));
- return ret;
-}
-
-static void write_safari_cfg(unsigned long val)
-{
- __asm__ __volatile__("stxa %0, [%%g0] %1\n\t"
- "membar #Sync"
- : /* no outputs */
- : "r" (val), "i" (ASI_SAFARI_CONFIG)
- : "memory");
-}
-
-static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg)
-{
- unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
- unsigned long ret;
-
- switch (safari_cfg & SAFARI_CFG_DIV_MASK) {
- case SAFARI_CFG_DIV_1:
- ret = clock_tick / 1;
- break;
- case SAFARI_CFG_DIV_2:
- ret = clock_tick / 2;
- break;
- case SAFARI_CFG_DIV_32:
- ret = clock_tick / 32;
- break;
- default:
- BUG();
- }
-
- return ret;
-}
-
-static unsigned int us3_freq_get(unsigned int cpu)
-{
- cpumask_t cpus_allowed;
- unsigned long reg;
- unsigned int ret;
-
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
- reg = read_safari_cfg();
- ret = get_current_freq(cpu, reg);
-
- set_cpus_allowed_ptr(current, &cpus_allowed);
-
- return ret;
-}
-
-static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
- unsigned int index)
-{
- unsigned int cpu = policy->cpu;
- unsigned long new_bits, new_freq, reg;
- cpumask_t cpus_allowed;
- struct cpufreq_freqs freqs;
-
- cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
- set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
- new_freq = sparc64_get_clock_tick(cpu) / 1000;
- switch (index) {
- case 0:
- new_bits = SAFARI_CFG_DIV_1;
- new_freq /= 1;
- break;
- case 1:
- new_bits = SAFARI_CFG_DIV_2;
- new_freq /= 2;
- break;
- case 2:
- new_bits = SAFARI_CFG_DIV_32;
- new_freq /= 32;
- break;
-
- default:
- BUG();
- }
-
- reg = read_safari_cfg();
-
- freqs.old = get_current_freq(cpu, reg);
- freqs.new = new_freq;
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
- reg &= ~SAFARI_CFG_DIV_MASK;
- reg |= new_bits;
- write_safari_cfg(reg);
-
- cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
- set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us3_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int new_index = 0;
-
- if (cpufreq_frequency_table_target(policy,
- &us3_freq_table[policy->cpu].table[0],
- target_freq,
- relation,
- &new_index))
- return -EINVAL;
-
- us3_set_cpu_divider_index(policy, new_index);
-
- return 0;
-}
-
-static int us3_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy,
- &us3_freq_table[policy->cpu].table[0]);
-}
-
-static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
-{
- unsigned int cpu = policy->cpu;
- unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
- struct cpufreq_frequency_table *table =
- &us3_freq_table[cpu].table[0];
-
- table[0].index = 0;
- table[0].frequency = clock_tick / 1;
- table[1].index = 1;
- table[1].frequency = clock_tick / 2;
- table[2].index = 2;
- table[2].frequency = clock_tick / 32;
- table[3].index = 0;
- table[3].frequency = CPUFREQ_TABLE_END;
-
- policy->cpuinfo.transition_latency = 0;
- policy->cur = clock_tick;
-
- return cpufreq_frequency_table_cpuinfo(policy, table);
-}
-
-static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- if (cpufreq_us3_driver)
- us3_set_cpu_divider_index(policy, 0);
-
- return 0;
-}
-
-static int __init us3_freq_init(void)
-{
- unsigned long manuf, impl, ver;
- int ret;
-
- if (tlb_type != cheetah && tlb_type != cheetah_plus)
- return -ENODEV;
-
- __asm__("rdpr %%ver, %0" : "=r" (ver));
- manuf = ((ver >> 48) & 0xffff);
- impl = ((ver >> 32) & 0xffff);
-
- if (manuf == CHEETAH_MANUF &&
- (impl == CHEETAH_IMPL ||
- impl == CHEETAH_PLUS_IMPL ||
- impl == JAGUAR_IMPL ||
- impl == PANTHER_IMPL)) {
- struct cpufreq_driver *driver;
-
- ret = -ENOMEM;
- driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
- if (!driver)
- goto err_out;
-
- us3_freq_table = kzalloc(
- (NR_CPUS * sizeof(struct us3_freq_percpu_info)),
- GFP_KERNEL);
- if (!us3_freq_table)
- goto err_out;
-
- driver->init = us3_freq_cpu_init;
- driver->verify = us3_freq_verify;
- driver->target = us3_freq_target;
- driver->get = us3_freq_get;
- driver->exit = us3_freq_cpu_exit;
- driver->owner = THIS_MODULE,
- strcpy(driver->name, "UltraSPARC-III");
-
- cpufreq_us3_driver = driver;
- ret = cpufreq_register_driver(driver);
- if (ret)
- goto err_out;
-
- return 0;
-
-err_out:
- if (driver) {
- kfree(driver);
- cpufreq_us3_driver = NULL;
- }
- kfree(us3_freq_table);
- us3_freq_table = NULL;
- return ret;
- }
-
- return -ENODEV;
-}
-
-static void __exit us3_freq_exit(void)
-{
- if (cpufreq_us3_driver) {
- cpufreq_unregister_driver(cpufreq_us3_driver);
- kfree(cpufreq_us3_driver);
- cpufreq_us3_driver = NULL;
- kfree(us3_freq_table);
- us3_freq_table = NULL;
- }
-}
-
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III");
-MODULE_LICENSE("GPL");
-
-module_init(us3_freq_init);
-module_exit(us3_freq_exit);
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