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 offset; 42 u32 mask; 43 u8 pres_shift; 44 }; 45 46 extern const struct clk_master_layout at91rm9200_master_layout; 47 extern const struct clk_master_layout at91sam9x5_master_layout; 48 49 struct clk_master_characteristics { 50 struct clk_range output; 51 u32 divisors[4]; 52 u8 have_div3_pres; 53 }; 54 55 struct clk_pll_layout { 56 u32 pllr_mask; 57 u16 mul_mask; 58 u8 mul_shift; 59 }; 60 61 extern const struct clk_pll_layout at91rm9200_pll_layout; 62 extern const struct clk_pll_layout at91sam9g45_pll_layout; 63 extern const struct clk_pll_layout at91sam9g20_pllb_layout; 64 extern const struct clk_pll_layout sama5d3_pll_layout; 65 66 struct clk_pll_characteristics { 67 struct clk_range input; 68 int num_output; 69 const struct clk_range *output; 70 u16 *icpll; 71 u8 *out; 72 u8 upll : 1; 73 }; 74 75 struct clk_programmable_layout { 76 u8 pres_mask; 77 u8 pres_shift; 78 u8 css_mask; 79 u8 have_slck_mck; 80 u8 is_pres_direct; 81 }; 82 83 extern const struct clk_programmable_layout at91rm9200_programmable_layout; 84 extern const struct clk_programmable_layout at91sam9g45_programmable_layout; 85 extern const struct clk_programmable_layout at91sam9x5_programmable_layout; 86 87 struct clk_pcr_layout { 88 u32 offset; 89 u32 cmd; 90 u32 div_mask; 91 u32 gckcss_mask; 92 u32 pid_mask; 93 }; 94 95 #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) 96 #define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) 97 98 #define ndck(a, s) (a[s - 1].id + 1) 99 #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1) 100 struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem, 101 unsigned int nperiph, unsigned int ngck); 102 void pmc_data_free(struct pmc_data *pmc_data); 103 104 int of_at91_get_clk_range(struct device_node *np, const char *propname, 105 struct clk_range *range); 106 107 struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); 108 109 struct clk_hw * __init 110 at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name, 111 const char *parent_name); 112 113 struct clk_hw * __init 114 at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name, 115 const char *parent_name); 116 117 struct clk_hw * __init 118 at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name, 119 const char *parent_name); 120 121 struct clk_hw * __init 122 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, 123 const struct clk_pcr_layout *layout, 124 const char *name, const char **parent_names, 125 u8 num_parents, u8 id, bool pll_audio, 126 const struct clk_range *range); 127 128 struct clk_hw * __init 129 at91_clk_register_h32mx(struct regmap *regmap, const char *name, 130 const char *parent_name); 131 132 struct clk_hw * __init 133 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name, 134 const char * const *parent_names, 135 unsigned int num_parents, u8 bus_id); 136 137 struct clk_hw * __init 138 at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name, 139 u32 frequency, u32 accuracy); 140 struct clk_hw * __init 141 at91_clk_register_main_osc(struct regmap *regmap, const char *name, 142 const char *parent_name, bool bypass); 143 struct clk_hw * __init 144 at91_clk_register_rm9200_main(struct regmap *regmap, 145 const char *name, 146 const char *parent_name); 147 struct clk_hw * __init 148 at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name, 149 const char **parent_names, int num_parents); 150 151 struct clk_hw * __init 152 at91_clk_register_master(struct regmap *regmap, const char *name, 153 int num_parents, const char **parent_names, 154 const struct clk_master_layout *layout, 155 const struct clk_master_characteristics *characteristics); 156 157 struct clk_hw * __init 158 at91_clk_register_peripheral(struct regmap *regmap, const char *name, 159 const char *parent_name, u32 id); 160 struct clk_hw * __init 161 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock, 162 const struct clk_pcr_layout *layout, 163 const char *name, const char *parent_name, 164 u32 id, const struct clk_range *range); 165 166 struct clk_hw * __init 167 at91_clk_register_pll(struct regmap *regmap, const char *name, 168 const char *parent_name, u8 id, 169 const struct clk_pll_layout *layout, 170 const struct clk_pll_characteristics *characteristics); 171 struct clk_hw * __init 172 at91_clk_register_plldiv(struct regmap *regmap, const char *name, 173 const char *parent_name); 174 175 struct clk_hw * __init 176 sam9x60_clk_register_pll(struct regmap *regmap, spinlock_t *lock, 177 const char *name, const char *parent_name, u8 id, 178 const struct clk_pll_characteristics *characteristics); 179 180 struct clk_hw * __init 181 at91_clk_register_programmable(struct regmap *regmap, const char *name, 182 const char **parent_names, u8 num_parents, u8 id, 183 const struct clk_programmable_layout *layout); 184 185 struct clk_hw * __init 186 at91_clk_register_sam9260_slow(struct regmap *regmap, 187 const char *name, 188 const char **parent_names, 189 int num_parents); 190 191 struct clk_hw * __init 192 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name, 193 const char **parent_names, u8 num_parents); 194 195 struct clk_hw * __init 196 at91_clk_register_system(struct regmap *regmap, const char *name, 197 const char *parent_name, u8 id); 198 199 struct clk_hw * __init 200 at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, 201 const char **parent_names, u8 num_parents); 202 struct clk_hw * __init 203 at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, 204 const char *parent_name); 205 struct clk_hw * __init 206 sam9x60_clk_register_usb(struct regmap *regmap, const char *name, 207 const char **parent_names, u8 num_parents); 208 struct clk_hw * __init 209 at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, 210 const char *parent_name, const u32 *divisors); 211 212 struct clk_hw * __init 213 at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr, 214 const char *name, const char *parent_name); 215 216 #ifdef CONFIG_PM 217 void pmc_register_id(u8 id); 218 void pmc_register_pck(u8 pck); 219 #else 220 static inline void pmc_register_id(u8 id) {} 221 static inline void pmc_register_pck(u8 pck) {} 222 #endif 223 224 #endif /* __PMC_H_ */ 225