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Diffstat (limited to 'drivers/cpufreq/exynos-cpufreq.h')
-rw-r--r--drivers/cpufreq/exynos-cpufreq.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/cpufreq/exynos-cpufreq.h b/drivers/cpufreq/exynos-cpufreq.h
new file mode 100644
index 000000000000..92b852ee5ddc
--- /dev/null
+++ b/drivers/cpufreq/exynos-cpufreq.h
@@ -0,0 +1,48 @@
+/*
+ * 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,
+};
+
+#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 {
+ 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);
+};
+
+extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);
+extern int exynos4x12_cpufreq_init(struct exynos_dvfs_info *);
+extern int exynos5250_cpufreq_init(struct exynos_dvfs_info *);