[CPUFREQ] EXYNOS: Make EXYNOS common cpufreq driver

To support various EXYNOS series SoCs commonly,
added exynos common structure.
exynos-cpufreq.c => EXYNOS series common cpufreq driver
exynos4210-cpufreq.c => EXYNOS4210 support cpufreq driver

Signed-off-by: Jaecheol Lee <jc.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Dave Jones <davej@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/arch/arm/mach-exynos/include/mach/cpufreq.h b/arch/arm/mach-exynos/include/mach/cpufreq.h
new file mode 100644
index 000000000000..3df27f2d5034
--- /dev/null
+++ b/arch/arm/mach-exynos/include/mach/cpufreq.h
@@ -0,0 +1,34 @@
+/* linux/arch/arm/mach-exynos/include/mach/cpufreq.h
+ *
+ * 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,
+};
+
+struct exynos_dvfs_info {
+        unsigned long   mpll_freq_khz;
+        unsigned int    pll_safe_idx;
+        unsigned int    pm_lock_idx;
+        unsigned int    max_support_idx;
+        unsigned int    min_support_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);
+};
+
+extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);