/*
* Copyright (c) 2010 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* EXYNOS - CPUFreq support
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
enum cpufreq_level_index {
L0, L1, L2, L3, L4,
L5, L6, L7, L8, L9,
L10, L11, L12, L13, L14,
L15, L16, L17, L18, L19,
L20,
};
enum exynos_soc_type {
EXYNOS_SOC_4210,
EXYNOS_SOC_4212,
EXYNOS_SOC_4412,
EXYNOS_SOC_5250,
};
#define APLL_FREQ(f, a0, a1, a2, a3, a4, a5, a6, a7, b0, b1, b2, m, p, s) \
{ \
.freq = (f) * 1000, \
.clk_div_cpu0 = ((a0) | (a1) << 4 | (a2) << 8 | (a3) << 12 | \
(a4) << 16 | (a5) << 20 | (a6) << 24 | (a7) << 28), \
.clk_div_cpu1 = (b0 << 0 | b1 << 4 | b2 << 8), \
.mps = ((m) << 16 | (p) << 8 | (s)), \
}
struct apll_freq {
unsigned int freq;
u32 clk_div_cpu0;
u32 clk_div_cpu1;
u32 mps;
};
struct exynos_dvfs_info {
enum exynos_soc_type type;
struct device *dev;
unsigned long mpll_freq_khz;
unsigned int pll_safe_idx;
struct clk *cpu_clk;
unsigned int *volt_table;
struct cpufreq_frequency_table *freq_table;
void (*set_freq)(unsigned int, unsigned int);
bool (*need_apll_change)(unsigned int, unsigned int);
void __iomem *cmu_regs;
};
#ifdef CONFIG_ARM_EXYNOS4210_CPUFREQ
extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);
#else
static inline int exynos4210_cpufreq_init(struct exynos_dvfs_info *info)
{
return -EOPNOTSUPP;
}
#endif
#ifdef CONFIG_ARM_EXYNOS4X12_CPUFREQ
extern int exynos4x12_cpufreq_init(struct exynos_dvfs_info *);
#else
static inline int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info)
{
return -EOPNOTSUPP;
}
#endif
#ifdef CONFIG_ARM_EXYNOS5250_CPUFREQ
extern int exynos5250_cpufreq_init(struct exynos_dvfs_info *);
#else
static inline int exynos5250_cpufreq_init(struct exynos_dvfs_info *info)
{
return -EOPNOTSUPP;
}
#endif
#define EXYNOS4_CLKSRC_CPU 0x14200
#define EXYNOS4_CLKMUX_STATCPU 0x14400
#define EXYNOS4_CLKDIV_CPU 0x14500
#define EXYNOS4_CLKDIV_CPU1 0x14504
#define EXYNOS4_CLKDIV_STATCPU 0x14600
#define EXYNOS4_CLKDIV_STATCPU1 0x14604
#define EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT (16)
#define EXYNOS4_CLKMUX_STATCPU_MUXCORE_MASK (0x7 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT)
#define EXYNOS5_APLL_LOCK 0x00000
#define EXYNOS5_APLL_CON0 0x00100
#define EXYNOS5_CLKMUX_STATCPU 0x00400
#define EXYNOS5_CLKDIV_CPU0 0x00500
#define EXYNOS5_CLKDIV_CPU1 0x00504
#define EXYNOS5_CLKDIV_STATCPU0 0x00600
#define EXYNOS5_CLKDIV_STATCPU1 0x00604
