arch/arm/mach-exynos/include/mach/cpufreq.h

   1 /* linux/arch/arm/mach-exynos/include/mach/cpufreq.h
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * EXYNOS - CPUFreq support
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 enum cpufreq_level_index {
  14         L0, L1, L2, L3, L4,
  15         L5, L6, L7, L8, L9,
  16         L10, L11, L12, L13, L14,
  17         L15, L16, L17, L18, L19,
  18         L20,
  19 };
  20
  21 struct exynos_dvfs_info {
  22         unsigned long   mpll_freq_khz;
  23         unsigned int    pll_safe_idx;
  24         unsigned int    pm_lock_idx;
  25         unsigned int    max_support_idx;
  26         unsigned int    min_support_idx;
  27         struct clk      *cpu_clk;
  28         unsigned int    *volt_table;
  29         struct cpufreq_frequency_table  *freq_table;
  30         void (*set_freq)(unsigned int, unsigned int);
  31         bool (*need_apll_change)(unsigned int, unsigned int);
  32 };
  33
  34 extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);
  35 extern int exynos4x12_cpufreq_init(struct exynos_dvfs_info *);
  36 extern int exynos5250_cpufreq_init(struct exynos_dvfs_info *);