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-rw-r--r--arch/cris/arch-v32/kernel/fasttimer.c299
-rw-r--r--arch/cris/arch-v32/kernel/process.c15
-rw-r--r--arch/cris/arch-v32/kernel/smp.c4
-rw-r--r--arch/cris/arch-v32/mach-a3/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-a3/cpufreq.c152
-rw-r--r--arch/cris/arch-v32/mach-fs/Makefile1
-rw-r--r--arch/cris/arch-v32/mach-fs/cpufreq.c145
7 files changed, 139 insertions, 478 deletions
diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c
index ab1551ee43c5..f6644535b17e 100644
--- a/arch/cris/arch-v32/kernel/fasttimer.c
+++ b/arch/cris/arch-v32/kernel/fasttimer.c
@@ -23,6 +23,7 @@
#include <hwregs/timer_defs.h>
#include <asm/fasttimer.h>
#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
/*
* timer0 is running at 100MHz and generating jiffies timer ticks
@@ -463,195 +464,161 @@ void schedule_usleep(unsigned long us)
}
#ifdef CONFIG_PROC_FS
-static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
- ,int *eof, void *data_unused);
-static struct proc_dir_entry *fasttimer_proc_entry;
-#endif /* CONFIG_PROC_FS */
-
-#ifdef CONFIG_PROC_FS
-
/* This value is very much based on testing */
#define BIG_BUF_SIZE (500 + NUM_TIMER_STATS * 300)
-static int proc_fasttimer_read(char *buf, char **start, off_t offset, int len
- ,int *eof, void *data_unused)
+static int proc_fasttimer_show(struct seq_file *m, void *v)
{
- unsigned long flags;
- int i = 0;
- int num_to_show;
+ unsigned long flags;
+ int i = 0;
+ int num_to_show;
struct fasttime_t tv;
- struct fast_timer *t, *nextt;
- static char *bigbuf = NULL;
- static unsigned long used;
-
- if (!bigbuf) {
- bigbuf = vmalloc(BIG_BUF_SIZE);
- if (!bigbuf) {
- used = 0;
- if (buf)
- buf[0] = '\0';
- return 0;
- }
- }
-
- if (!offset || !used) {
- do_gettimeofday_fast(&tv);
-
- used = 0;
- used += sprintf(bigbuf + used, "Fast timers added: %i\n",
- fast_timers_added);
- used += sprintf(bigbuf + used, "Fast timers started: %i\n",
- fast_timers_started);
- used += sprintf(bigbuf + used, "Fast timer interrupts: %i\n",
- fast_timer_ints);
- used += sprintf(bigbuf + used, "Fast timers expired: %i\n",
- fast_timers_expired);
- used += sprintf(bigbuf + used, "Fast timers deleted: %i\n",
- fast_timers_deleted);
- used += sprintf(bigbuf + used, "Fast timer running: %s\n",
- fast_timer_running ? "yes" : "no");
- used += sprintf(bigbuf + used, "Current time: %lu.%06lu\n",
- (unsigned long)tv.tv_jiff,
- (unsigned long)tv.tv_usec);
+ struct fast_timer *t, *nextt;
+
+ do_gettimeofday_fast(&tv);
+
+ seq_printf(m, "Fast timers added: %i\n", fast_timers_added);
+ seq_printf(m, "Fast timers started: %i\n", fast_timers_started);
+ seq_printf(m, "Fast timer interrupts: %i\n", fast_timer_ints);
+ seq_printf(m, "Fast timers expired: %i\n", fast_timers_expired);
+ seq_printf(m, "Fast timers deleted: %i\n", fast_timers_deleted);
+ seq_printf(m, "Fast timer running: %s\n",
+ fast_timer_running ? "yes" : "no");
+ seq_printf(m, "Current time: %lu.%06lu\n",
+ (unsigned long)tv.tv_jiff,
+ (unsigned long)tv.tv_usec);
#ifdef FAST_TIMER_SANITY_CHECKS
- used += sprintf(bigbuf + used, "Sanity failed: %i\n",
- sanity_failed);
+ seq_printf(m, "Sanity failed: %i\n", sanity_failed);
#endif
- used += sprintf(bigbuf + used, "\n");
+ seq_putc(m, '\n');
#ifdef DEBUG_LOG_INCLUDED
- {
- int end_i = debug_log_cnt;
- i = 0;
-
- if (debug_log_cnt_wrapped)
- i = debug_log_cnt;
-
- while ((i != end_i || (debug_log_cnt_wrapped && !used)) &&
- used+100 < BIG_BUF_SIZE)
- {
- used += sprintf(bigbuf + used, debug_log_string[i],
- debug_log_value[i]);
- i = (i+1) % DEBUG_LOG_MAX;
- }
- }
- used += sprintf(bigbuf + used, "\n");
+ {
+ int end_i = debug_log_cnt;
+ i = 0;
+
+ if (debug_log_cnt_wrapped)
+ i = debug_log_cnt;
+
+ while ((i != end_i || debug_log_cnt_wrapped)) {
+ if (seq_printf(m, debug_log_string[i], debug_log_value[i]) < 0)
+ return 0;
+ i = (i+1) % DEBUG_LOG_MAX;
+ }
+ }
+ seq_putc(m, '\n');
#endif
- num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers started: %i\n", fast_timers_started);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE) ; i++)
- {
- int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS;
+ num_to_show = (fast_timers_started < NUM_TIMER_STATS ? fast_timers_started:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers started: %i\n", fast_timers_started);
+ for (i = 0; i < num_to_show; i++) {
+ int cur = (fast_timers_started - i - 1) % NUM_TIMER_STATS;
#if 1 //ndef FAST_TIMER_LOG
- used += sprintf(bigbuf + used, "div: %i delay: %i"
- "\n",
- timer_div_settings[cur],
- timer_delay_settings[cur]
- );
+ seq_printf(m, "div: %i delay: %i"
+ "\n",
+ timer_div_settings[cur],
+ timer_delay_settings[cur]);
#endif
#ifdef FAST_TIMER_LOG
- t = &timer_started_log[cur];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
+ t = &timer_started_log[cur];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
#endif
- }
- used += sprintf(bigbuf + used, "\n");
+ }
+ seq_putc(m, '\n');
#ifdef FAST_TIMER_LOG
- num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers added: %i\n", fast_timers_added);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++)
- {
- t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
- }
- used += sprintf(bigbuf + used, "\n");
-
- num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired:
- NUM_TIMER_STATS);
- used += sprintf(bigbuf + used, "Timers expired: %i\n", fast_timers_expired);
- for (i = 0; i < num_to_show && (used+100 < BIG_BUF_SIZE); i++)
- {
- t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS];
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
- );
- }
- used += sprintf(bigbuf + used, "\n");
+ num_to_show = (fast_timers_added < NUM_TIMER_STATS ? fast_timers_added:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers added: %i\n", fast_timers_added);
+ for (i = 0; i < num_to_show; i++) {
+ t = &timer_added_log[(fast_timers_added - i - 1) % NUM_TIMER_STATS];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
+ }
+ seq_putc(m, '\n');
+
+ num_to_show = (fast_timers_expired < NUM_TIMER_STATS ? fast_timers_expired:
+ NUM_TIMER_STATS);
+ seq_printf(m, "Timers expired: %i\n", fast_timers_expired);
+ for (i = 0; i < num_to_show; i++){
+ t = &timer_expired_log[(fast_timers_expired - i - 1) % NUM_TIMER_STATS];
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data) < 0)
+ return 0;
+ }
+ seq_putc(m, '\n');
#endif
- used += sprintf(bigbuf + used, "Active timers:\n");
- local_irq_save(flags);
- t = fast_timer_list;
- while (t != NULL && (used+100 < BIG_BUF_SIZE))
- {
- nextt = t->next;
- local_irq_restore(flags);
- used += sprintf(bigbuf + used, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
- "d: %6li us data: 0x%08lX"
+ seq_puts(m, "Active timers:\n");
+ local_irq_save(flags);
+ t = fast_timer_list;
+ while (t != NULL){
+ nextt = t->next;
+ local_irq_restore(flags);
+ if (seq_printf(m, "%-14s s: %6lu.%06lu e: %6lu.%06lu "
+ "d: %6li us data: 0x%08lX"
/* " func: 0x%08lX" */
- "\n",
- t->name,
- (unsigned long)t->tv_set.tv_jiff,
- (unsigned long)t->tv_set.tv_usec,
- (unsigned long)t->tv_expires.tv_jiff,
- (unsigned long)t->tv_expires.tv_usec,
- t->delay_us,
- t->data
+ "\n",
+ t->name,
+ (unsigned long)t->tv_set.tv_jiff,
+ (unsigned long)t->tv_set.tv_usec,
+ (unsigned long)t->tv_expires.tv_jiff,
+ (unsigned long)t->tv_expires.tv_usec,
+ t->delay_us,
+ t->data
/* , t->function */
- );
- local_irq_save(flags);
- if (t->next != nextt)
- {
- printk("timer removed!\n");
- }
- t = nextt;
- }
- local_irq_restore(flags);
- }
+ ) < 0)
+ return 0;
+ local_irq_save(flags);
+ if (t->next != nextt)
+ printk("timer removed!\n");
+ t = nextt;
+ }
+ local_irq_restore(flags);
+ return 0;
+}
- if (used - offset < len)
- {
- len = used - offset;
- }
+static int proc_fasttimer_open(struct inode *inode, struct file *file)
+{
+ return single_open_size(file, proc_fasttimer_show, PDE_DATA(inode), BIG_BUF_SIZE);
+}
- memcpy(buf, bigbuf + offset, len);
- *start = buf;
- *eof = 1;
+static const struct file_operations proc_fasttimer_fops = {
+ .open = proc_fasttimer_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
- return len;
-}
#endif /* PROC_FS */
#ifdef FAST_TIMER_TEST
@@ -816,9 +783,7 @@ int fast_timer_init(void)
printk("fast_timer_init()\n");
#ifdef CONFIG_PROC_FS
- fasttimer_proc_entry = create_proc_entry("fasttimer", 0, 0);
- if (fasttimer_proc_entry)
- fasttimer_proc_entry->read_proc = proc_fasttimer_read;
+ proc_create("fasttimer", 0, NULL, &proc_fasttimer_fops);
#endif /* PROC_FS */
if (request_irq(TIMER0_INTR_VECT, timer_trig_interrupt,
IRQF_SHARED | IRQF_DISABLED,
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index 2b23ef0e4452..cebd32e2a8fb 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -20,18 +20,12 @@
extern void stop_watchdog(void);
-extern int cris_hlt_counter;
-
/* We use this if we don't have any better idle routine. */
void default_idle(void)
{
- local_irq_disable();
- if (!need_resched() && !cris_hlt_counter) {
- /* Halt until exception. */
- __asm__ volatile("ei \n\t"
- "halt ");
- }
- local_irq_enable();
+ /* Halt until exception. */
+ __asm__ volatile("ei \n\t"
+ "halt ");
}
/*
@@ -170,6 +164,9 @@ get_wchan(struct task_struct *p)
void show_regs(struct pt_regs * regs)
{
unsigned long usp = rdusp();
+
+ show_regs_print_info(KERN_DEFAULT);
+
printk("ERP: %08lx SRP: %08lx CCS: %08lx USP: %08lx MOF: %08lx\n",
regs->erp, regs->srp, regs->ccs, usp, regs->mof);
diff --git a/arch/cris/arch-v32/kernel/smp.c b/arch/cris/arch-v32/kernel/smp.c
index 04a16edd5401..cdd12028de0c 100644
--- a/arch/cris/arch-v32/kernel/smp.c
+++ b/arch/cris/arch-v32/kernel/smp.c
@@ -145,8 +145,6 @@ smp_boot_one_cpu(int cpuid, struct task_struct idle)
* specific stuff such as the local timer and the MMU. */
void __init smp_callin(void)
{
- extern void cpu_idle(void);
-
int cpu = cpu_now_booting;
reg_intr_vect_rw_mask vect_mask = {0};
@@ -170,7 +168,7 @@ void __init smp_callin(void)
local_irq_enable();
set_cpu_online(cpu, true);
- cpu_idle();
+ cpu_startup_entry(CPUHP_ONLINE);
}
/* Stop execution on this CPU.*/
diff --git a/arch/cris/arch-v32/mach-a3/Makefile b/arch/cris/arch-v32/mach-a3/Makefile
index d366e0891988..18a227196a41 100644
--- a/arch/cris/arch-v32/mach-a3/Makefile
+++ b/arch/cris/arch-v32/mach-a3/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/cris/arch-v32/mach-a3/cpufreq.c b/arch/cris/arch-v32/mach-a3/cpufreq.c
deleted file mode 100644
index ee391ecb5bc9..000000000000
--- a/arch/cris/arch-v32/mach-a3/cpufreq.c
+++ /dev/null
@@ -1,152 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/cpufreq.h>
-#include <hwregs/reg_map.h>
-#include <hwregs/reg_rdwr.h>
-#include <hwregs/clkgen_defs.h>
-#include <hwregs/ddr2_defs.h>
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data);
-
-static struct notifier_block cris_sdram_freq_notifier_block = {
- .notifier_call = cris_sdram_freq_notifier
-};
-
-static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
-};
-
-static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
-{
- reg_clkgen_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
- return clk_ctrl.pll ? 200000 : 6000;
-}
-
-static void cris_freq_set_cpu_state(unsigned int state)
-{
- int i = 0;
- struct cpufreq_freqs freqs;
- reg_clkgen_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
-
-#ifdef CONFIG_SMP
- for_each_present_cpu(i)
-#endif
- {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- local_irq_disable();
-
- /* Even though we may be SMP they will share the same clock
- * so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
- clk_ctrl.pll = 1;
- else
- clk_ctrl.pll = 0;
- REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl);
-
- local_irq_enable();
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target(policy, cris_freq_table,
- target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(newstate);
-
- return 0;
-}
-
-static int cris_freq_cpu_init(struct cpufreq_policy *policy)
-{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static struct cpufreq_driver cris_freq_driver = {
- .get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
- .init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
- .name = "cris_freq",
- .owner = THIS_MODULE,
- .attr = cris_freq_attr,
-};
-
-static int __init cris_freq_init(void)
-{
- int ret;
- ret = cpufreq_register_driver(&cris_freq_driver);
- cpufreq_register_notifier(&cris_sdram_freq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- return ret;
-}
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- int i;
- struct cpufreq_freqs *freqs = data;
- if (val == CPUFREQ_PRECHANGE) {
- reg_ddr2_rw_cfg cfg =
- REG_RD(ddr2, regi_ddr2_ctrl, rw_cfg);
- cfg.ref_interval = (freqs->new == 200000 ? 1560 : 46);
-
- if (freqs->new == 200000)
- for (i = 0; i < 50000; i++);
- REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing);
- }
- return 0;
-}
-
-
-module_init(cris_freq_init);
diff --git a/arch/cris/arch-v32/mach-fs/Makefile b/arch/cris/arch-v32/mach-fs/Makefile
index d366e0891988..18a227196a41 100644
--- a/arch/cris/arch-v32/mach-fs/Makefile
+++ b/arch/cris/arch-v32/mach-fs/Makefile
@@ -3,7 +3,6 @@
#
obj-y := dma.o pinmux.o io.o arbiter.o
-obj-$(CONFIG_CPU_FREQ) += cpufreq.o
clean:
diff --git a/arch/cris/arch-v32/mach-fs/cpufreq.c b/arch/cris/arch-v32/mach-fs/cpufreq.c
deleted file mode 100644
index d92cf70d1cbe..000000000000
--- a/arch/cris/arch-v32/mach-fs/cpufreq.c
+++ /dev/null
@@ -1,145 +0,0 @@
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/cpufreq.h>
-#include <hwregs/reg_map.h>
-#include <arch/hwregs/reg_rdwr.h>
-#include <arch/hwregs/config_defs.h>
-#include <arch/hwregs/bif_core_defs.h>
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data);
-
-static struct notifier_block cris_sdram_freq_notifier_block = {
- .notifier_call = cris_sdram_freq_notifier
-};
-
-static struct cpufreq_frequency_table cris_freq_table[] = {
- {0x01, 6000},
- {0x02, 200000},
- {0, CPUFREQ_TABLE_END},
-};
-
-static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
-{
- reg_config_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
- return clk_ctrl.pll ? 200000 : 6000;
-}
-
-static void cris_freq_set_cpu_state(unsigned int state)
-{
- int i;
- struct cpufreq_freqs freqs;
- reg_config_rw_clk_ctrl clk_ctrl;
- clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
-
- for_each_possible_cpu(i) {
- freqs.old = cris_freq_get_cpu_frequency(i);
- freqs.new = cris_freq_table[state].frequency;
- freqs.cpu = i;
- }
-
- cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
- local_irq_disable();
-
- /* Even though we may be SMP they will share the same clock
- * so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
- clk_ctrl.pll = 1;
- else
- clk_ctrl.pll = 0;
- REG_WR(config, regi_config, rw_clk_ctrl, clk_ctrl);
-
- local_irq_enable();
-
- cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
- return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
-static int cris_freq_target(struct cpufreq_policy *policy,
- unsigned int target_freq, unsigned int relation)
-{
- unsigned int newstate = 0;
-
- if (cpufreq_frequency_table_target
- (policy, cris_freq_table, target_freq, relation, &newstate))
- return -EINVAL;
-
- cris_freq_set_cpu_state(newstate);
-
- return 0;
-}
-
-static int cris_freq_cpu_init(struct cpufreq_policy *policy)
-{
- int result;
-
- /* cpuinfo and default policy values */
- policy->cpuinfo.transition_latency = 1000000; /* 1ms */
- policy->cur = cris_freq_get_cpu_frequency(0);
-
- result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
- if (result)
- return (result);
-
- cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
- return 0;
-}
-
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
- cpufreq_frequency_table_put_attr(policy->cpu);
- return 0;
-}
-
-static struct freq_attr *cris_freq_attr[] = {
- &cpufreq_freq_attr_scaling_available_freqs,
- NULL,
-};
-
-static struct cpufreq_driver cris_freq_driver = {
- .get = cris_freq_get_cpu_frequency,
- .verify = cris_freq_verify,
- .target = cris_freq_target,
- .init = cris_freq_cpu_init,
- .exit = cris_freq_cpu_exit,
- .name = "cris_freq",
- .owner = THIS_MODULE,
- .attr = cris_freq_attr,
-};
-
-static int __init cris_freq_init(void)
-{
- int ret;
- ret = cpufreq_register_driver(&cris_freq_driver);
- cpufreq_register_notifier(&cris_sdram_freq_notifier_block,
- CPUFREQ_TRANSITION_NOTIFIER);
- return ret;
-}
-
-static int
-cris_sdram_freq_notifier(struct notifier_block *nb, unsigned long val,
- void *data)
-{
- int i;
- struct cpufreq_freqs *freqs = data;
- if (val == CPUFREQ_PRECHANGE) {
- reg_bif_core_rw_sdram_timing timing =
- REG_RD(bif_core, regi_bif_core, rw_sdram_timing);
- timing.cpd = (freqs->new == 200000 ? 0 : 1);
-
- if (freqs->new == 200000)
- for (i = 0; i < 50000; i++) ;
- REG_WR(bif_core, regi_bif_core, rw_sdram_timing, timing);
- }
- return 0;
-}
-
-module_init(cris_freq_init);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-23 16:32:07 +0300