From ba9d78031116a216d0e53aa629a584932e813375 Mon Sep 17 00:00:00 2001 From: Jaecheol Lee Date: Wed, 7 Dec 2011 11:43:56 +0900 Subject: [PATCH] [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 Signed-off-by: Jongpill Lee Signed-off-by: Kukjin Kim Signed-off-by: Dave Jones --- drivers/cpufreq/exynos4210-cpufreq.c | 71 ++++++++++++++++------------ 1 file changed, 42 insertions(+), 29 deletions(-) diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c index 578956c5ee71..ba579e0a5c3f 100644 --- a/drivers/cpufreq/exynos4210-cpufreq.c +++ b/drivers/cpufreq/exynos4210-cpufreq.c @@ -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)