1 /* 2 * drivers/clk/at91/pmc.h 3 * 4 * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 */ 11 12 #ifndef __PMC_H_ 13 #define __PMC_H_ 14 15 #include <linux/io.h> 16 #include <linux/irqdomain.h> 17 #include <linux/regmap.h> 18 #include <linux/spinlock.h> 19 20 extern spinlock_t pmc_pcr_lock; 21 22 struct pmc_data { 23 unsigned int ncore; 24 struct clk_hw **chws; 25 unsigned int nsystem; 26 struct clk_hw **shws; 27 unsigned int nperiph; 28 struct clk_hw **phws; 29 unsigned int ngck; 30 struct clk_hw **ghws; 31 }; 32 33 struct clk_range { 34 unsigned long min; 35 unsigned long max; 36 }; 37 38 #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} 39 40 struct clk_master_layout { 41 u32 mask; 42 u8 pres_shift; 43 }; 44 45 extern const struct clk_master_layout at91rm9200_master_layout; 46 extern const struct clk_master_layout at91sam9x5_master_layout; 47 48 struct clk_master_characteristics { 49 struct clk_range output; 50 u32 divisors[4]; 51 u8 have_div3_pres; 52 }; 53 54 struct clk_pll_layout { 55 u32 pllr_mask; 56 u16 mul_mask; 57 u8 mul_shift; 58 }; 59 60 extern const struct clk_pll_layout at91rm9200_pll_layout; 61 extern const struct clk_pll_layout at91sam9g45_pll_layout; 62 extern const struct clk_pll_layout at91sam9g20_pllb_layout; 63 extern const struct clk_pll_layout sama5d3_pll_layout; 64 65 struct clk_pll_characteristics { 66 struct clk_range input; 67 int num_output; 68 struct clk_range *output; 69 u16 *icpll; 70 u8 *out; 71 }; 72 73 struct clk_programmable_layout { 74 u8 pres_shift; 75 u8 css_mask; 76 u8 have_slck_mck; 77 }; 78 79 extern const struct clk_programmable_layout at91rm9200_programmable_layout; 80 extern const struct clk_programmable_layout at91sam9g45_programmable_layout; 81 extern const struct clk_programmable_layout at91sam9x5_programmable_layout; 82 83 #define ndck(a, s) (a[s - 1].id + 1) 84 #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1) 85 struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem, 86 unsigned int nperiph, unsigned int ngck); 87 void pmc_data_free(struct pmc_data *pmc_data); 88 89 int of_at91_get_clk_range(struct device_node *np, const char *propname, 90 struct clk_range *range); 91 92 struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); 93 94 struct clk_hw * __init 95 at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name, 96 const char *parent_name); 97 98 struct clk_hw * __init 99 at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name, 100 const char *parent_name); 101 102 struct clk_hw * __init 103 at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name, 104 const char *parent_name); 105 106 struct clk_hw * __init 107 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, 108 const char *name, const char **parent_names, 109 u8 num_parents, u8 id, bool pll_audio, 110 const struct clk_range *range); 111 112 struct clk_hw * __init 113 at91_clk_register_h32mx(struct regmap *regmap, const char *name, 114 const char *parent_name); 115 116 struct clk_hw * __init 117 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name, 118 const char * const *parent_names, 119 unsigned int num_parents, u8 bus_id); 120 121 struct clk_hw * __init 122 at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name, 123 u32 frequency, u32 accuracy); 124 struct clk_hw * __init 125 at91_clk_register_main_osc(struct regmap *regmap, const char *name, 126 const char *parent_name, bool bypass); 127 struct clk_hw * __init 128 at91_clk_register_rm9200_main(struct regmap *regmap, 129 const char *name, 130 const char *parent_name); 131 struct clk_hw * __init 132 at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name, 133 const char **parent_names, int num_parents); 134 135 struct clk_hw * __init 136 at91_clk_register_master(struct regmap *regmap, const char *name, 137 int num_parents, const char **parent_names, 138 const struct clk_master_layout *layout, 139 const struct clk_master_characteristics *characteristics); 140 141 struct clk_hw * __init 142 at91_clk_register_peripheral(struct regmap *regmap, const char *name, 143 const char *parent_name, u32 id); 144 struct clk_hw * __init 145 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock, 146 const char *name, const char *parent_name, 147 u32 id, const struct clk_range *range); 148 149 struct clk_hw * __init 150 at91_clk_register_pll(struct regmap *regmap, const char *name, 151 const char *parent_name, u8 id, 152 const struct clk_pll_layout *layout, 153 const struct clk_pll_characteristics *characteristics); 154 struct clk_hw * __init 155 at91_clk_register_plldiv(struct regmap *regmap, const char *name, 156 const char *parent_name); 157 158 struct clk_hw * __init 159 at91_clk_register_programmable(struct regmap *regmap, const char *name, 160 const char **parent_names, u8 num_parents, u8 id, 161 const struct clk_programmable_layout *layout); 162 163 struct clk_hw * __init 164 at91_clk_register_sam9260_slow(struct regmap *regmap, 165 const char *name, 166 const char **parent_names, 167 int num_parents); 168 169 struct clk_hw * __init 170 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name, 171 const char **parent_names, u8 num_parents); 172 173 struct clk_hw * __init 174 at91_clk_register_system(struct regmap *regmap, const char *name, 175 const char *parent_name, u8 id); 176 177 struct clk_hw * __init 178 at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, 179 const char **parent_names, u8 num_parents); 180 struct clk_hw * __init 181 at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, 182 const char *parent_name); 183 struct clk_hw * __init 184 at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, 185 const char *parent_name, const u32 *divisors); 186 187 struct clk_hw * __init 188 at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr, 189 const char *name, const char *parent_name); 190 191 #ifdef CONFIG_PM 192 void pmc_register_id(u8 id); 193 void pmc_register_pck(u8 pck); 194 #else 195 static inline void pmc_register_id(u8 id) {} 196 static inline void pmc_register_pck(u8 pck) {} 197 #endif 198 199 #endif /* __PMC_H_ */ 200