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[CPUFREQ] EXYNOS4210: Update frequency table for cpu divider 

This patch is changes frequency table for cpu divider for stable frequency.

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Jongpill Lee <boyko.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Dave Jones <davej@redhat.com>
This commit is contained in:
Jaecheol Lee 2011-12-07 11:43:56 +09:00 committed by Dave Jones
parent c8c430e2f6
commit ba9d780311
1 changed files with 42 additions and 29 deletions
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71
drivers/cpufreq/exynos4210-cpufreq.c
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@ -41,14 +41,15 @@ static bool frequency_locked;
static DEFINE_MUTEX(cpufreq_lock);
enum cpufreq_level_index {
L0, L1, L2, L3, CPUFREQ_LEVEL_END,
L0, L1, L2, L3, L4, CPUFREQ_LEVEL_END,
};
static struct cpufreq_frequency_table exynos4_freq_table[] = {
{L0, 1000*1000},
{L1, 800*1000},
{L2, 400*1000},
{L3, 100*1000},
{L0, 1200*1000},
{L1, 1000*1000},
{L2, 800*1000},
{L3, 500*1000},
{L4, 200*1000},
{0, CPUFREQ_TABLE_END},
};
@ -59,17 +60,20 @@ static unsigned int clkdiv_cpu0[CPUFREQ_LEVEL_END][7] = {
* DIVATB, DIVPCLK_DBG, DIVAPLL }
*/
/* ARM L0: 1000MHz */
{ 0, 3, 7, 3, 3, 0, 1 },
/* ARM L0: 1200MHz */
{ 0, 3, 7, 3, 4, 1, 7 },
/* ARM L1: 800MHz */
{ 0, 3, 7, 3, 3, 0, 1 },
/* ARM L1: 1000MHz */
{ 0, 3, 7, 3, 4, 1, 7 },
/* ARM L2: 400MHz */
{ 0, 1, 3, 1, 3, 0, 1 },
/* ARM L2: 800MHz */
{ 0, 3, 7, 3, 3, 1, 7 },
/* ARM L3: 100MHz */
{ 0, 0, 1, 0, 3, 1, 1 },
/* ARM L3: 500MHz */
{ 0, 3, 7, 3, 3, 1, 7 },
/* ARM L4: 200MHz */
{ 0, 1, 3, 1, 3, 1, 0 },
};
static unsigned int clkdiv_cpu1[CPUFREQ_LEVEL_END][2] = {
@ -78,16 +82,19 @@ static unsigned int clkdiv_cpu1[CPUFREQ_LEVEL_END][2] = {
* { DIVCOPY, DIVHPM }
*/
/* ARM L0: 1000MHz */
/* ARM L0: 1200MHz */
{ 5, 0 },
/* ARM L1: 1000MHz */
{ 4, 0 },
/* ARM L2: 800MHz */
{ 3, 0 },
/* ARM L1: 800MHz */
/* ARM L3: 500MHz */
{ 3, 0 },
/* ARM L2: 400MHz */
{ 3, 0 },
/* ARM L3: 100MHz */
/* ARM L4: 200MHz */
{ 3, 0 },
};
@ -99,31 +106,37 @@ struct cpufreq_voltage_table {
static struct cpufreq_voltage_table exynos4_volt_table[CPUFREQ_LEVEL_END] = {
{
.index = L0,
.arm_volt = 1200000,
.arm_volt = 1350000,
}, {
.index = L1,
.arm_volt = 1100000,
.arm_volt = 1300000,
}, {
.index = L2,
.arm_volt = 1000000,
.arm_volt = 1200000,
}, {
.index = L3,
.arm_volt = 900000,
.arm_volt = 1100000,
}, {
.index = L4,
.arm_volt = 1050000,
},
};
static unsigned int exynos4_apll_pms_table[CPUFREQ_LEVEL_END] = {
/* APLL FOUT L0: 1000MHz */
/* APLL FOUT L0: 1200MHz */
((150 << 16) | (3 << 8) | 1),
/* APLL FOUT L1: 1000MHz */
((250 << 16) | (6 << 8) | 1),
/* APLL FOUT L1: 800MHz */
/* APLL FOUT L2: 800MHz */
((200 << 16) | (6 << 8) | 1),
/* APLL FOUT L2 : 400MHz */
((200 << 16) | (6 << 8) | 2),
/* APLL FOUT L3: 500MHz */
((250 << 16) | (6 << 8) | 2),
/* APLL FOUT L3: 100MHz */
((200 << 16) | (6 << 8) | 4),
/* APLL FOUT L4: 200MHz */
((200 << 16) | (6 << 8) | 3),
};
static int exynos4_verify_speed(struct cpufreq_policy *policy)