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_mask; 75 u8 pres_shift; 76 u8 css_mask; 77 u8 have_slck_mck; 78 u8 is_pres_direct; 79 }; 80 81 extern const struct clk_programmable_layout at91rm9200_programmable_layout; 82 extern const struct clk_programmable_layout at91sam9g45_programmable_layout; 83 extern const struct clk_programmable_layout at91sam9x5_programmable_layout; 84 85 #define ndck(a, s) (a[s - 1].id + 1) 86 #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1) 87 struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem, 88 unsigned int nperiph, unsigned int ngck); 89 void pmc_data_free(struct pmc_data *pmc_data); 90 91 int of_at91_get_clk_range(struct device_node *np, const char *propname, 92 struct clk_range *range); 93 94 struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); 95 96 struct clk_hw * __init 97 at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name, 98 const char *parent_name); 99 100 struct clk_hw * __init 101 at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name, 102 const char *parent_name); 103 104 struct clk_hw * __init 105 at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name, 106 const char *parent_name); 107 108 struct clk_hw * __init 109 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, 110 const char *name, const char **parent_names, 111 u8 num_parents, u8 id, bool pll_audio, 112 const struct clk_range *range); 113 114 struct clk_hw * __init 115 at91_clk_register_h32mx(struct regmap *regmap, const char *name, 116 const char *parent_name); 117 118 struct clk_hw * __init 119 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name, 120 const char * const *parent_names, 121 unsigned int num_parents, u8 bus_id); 122 123 struct clk_hw * __init 124 at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name, 125 u32 frequency, u32 accuracy); 126 struct clk_hw * __init 127 at91_clk_register_main_osc(struct regmap *regmap, const char *name, 128 const char *parent_name, bool bypass); 129 struct clk_hw * __init 130 at91_clk_register_rm9200_main(struct regmap *regmap, 131 const char *name, 132 const char *parent_name); 133 struct clk_hw * __init 134 at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name, 135 const char **parent_names, int num_parents); 136 137 struct clk_hw * __init 138 at91_clk_register_master(struct regmap *regmap, const char *name, 139 int num_parents, const char **parent_names, 140 const struct clk_master_layout *layout, 141 const struct clk_master_characteristics *characteristics); 142 143 struct clk_hw * __init 144 at91_clk_register_peripheral(struct regmap *regmap, const char *name, 145 const char *parent_name, u32 id); 146 struct clk_hw * __init 147 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock, 148 const char *name, const char *parent_name, 149 u32 id, const struct clk_range *range); 150 151 struct clk_hw * __init 152 at91_clk_register_pll(struct regmap *regmap, const char *name, 153 const char *parent_name, u8 id, 154 const struct clk_pll_layout *layout, 155 const struct clk_pll_characteristics *characteristics); 156 struct clk_hw * __init 157 at91_clk_register_plldiv(struct regmap *regmap, const char *name, 158 const char *parent_name); 159 160 struct clk_hw * __init 161 at91_clk_register_programmable(struct regmap *regmap, const char *name, 162 const char **parent_names, u8 num_parents, u8 id, 163 const struct clk_programmable_layout *layout); 164 165 struct clk_hw * __init 166 at91_clk_register_sam9260_slow(struct regmap *regmap, 167 const char *name, 168 const char **parent_names, 169 int num_parents); 170 171 struct clk_hw * __init 172 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name, 173 const char **parent_names, u8 num_parents); 174 175 struct clk_hw * __init 176 at91_clk_register_system(struct regmap *regmap, const char *name, 177 const char *parent_name, u8 id); 178 179 struct clk_hw * __init 180 at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, 181 const char **parent_names, u8 num_parents); 182 struct clk_hw * __init 183 at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, 184 const char *parent_name); 185 struct clk_hw * __init 186 at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, 187 const char *parent_name, const u32 *divisors); 188 189 struct clk_hw * __init 190 at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr, 191 const char *name, const char *parent_name); 192 193 #ifdef CONFIG_PM 194 void pmc_register_id(u8 id); 195 void pmc_register_pck(u8 pck); 196 #else 197 static inline void pmc_register_id(u8 id) {} 198 static inline void pmc_register_pck(u8 pck) {} 199 #endif 200 201 #endif /* __PMC_H_ */ 202