1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * drivers/clk/at91/pmc.h 4 * 5 * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com> 6 */ 7 8 #ifndef __PMC_H_ 9 #define __PMC_H_ 10 11 #include <linux/io.h> 12 #include <linux/irqdomain.h> 13 #include <linux/regmap.h> 14 #include <linux/spinlock.h> 15 16 #include <dt-bindings/clock/at91.h> 17 18 extern spinlock_t pmc_pcr_lock; 19 20 struct pmc_data { 21 unsigned int ncore; 22 struct clk_hw **chws; 23 unsigned int nsystem; 24 struct clk_hw **shws; 25 unsigned int nperiph; 26 struct clk_hw **phws; 27 unsigned int ngck; 28 struct clk_hw **ghws; 29 unsigned int npck; 30 struct clk_hw **pchws; 31 32 struct clk_hw *hwtable[]; 33 }; 34 35 struct clk_range { 36 unsigned long min; 37 unsigned long max; 38 }; 39 40 #define CLK_RANGE(MIN, MAX) {.min = MIN, .max = MAX,} 41 42 struct clk_master_layout { 43 u32 offset; 44 u32 mask; 45 u8 pres_shift; 46 }; 47 48 extern const struct clk_master_layout at91rm9200_master_layout; 49 extern const struct clk_master_layout at91sam9x5_master_layout; 50 51 struct clk_master_characteristics { 52 struct clk_range output; 53 u32 divisors[5]; 54 u8 have_div3_pres; 55 }; 56 57 struct clk_pll_layout { 58 u32 pllr_mask; 59 u32 mul_mask; 60 u32 frac_mask; 61 u32 div_mask; 62 u32 endiv_mask; 63 u8 mul_shift; 64 u8 frac_shift; 65 u8 div_shift; 66 u8 endiv_shift; 67 }; 68 69 extern const struct clk_pll_layout at91rm9200_pll_layout; 70 extern const struct clk_pll_layout at91sam9g45_pll_layout; 71 extern const struct clk_pll_layout at91sam9g20_pllb_layout; 72 extern const struct clk_pll_layout sama5d3_pll_layout; 73 74 struct clk_pll_characteristics { 75 struct clk_range input; 76 int num_output; 77 const struct clk_range *output; 78 u16 *icpll; 79 u8 *out; 80 u8 upll : 1; 81 }; 82 83 struct clk_programmable_layout { 84 u8 pres_mask; 85 u8 pres_shift; 86 u8 css_mask; 87 u8 have_slck_mck; 88 u8 is_pres_direct; 89 }; 90 91 extern const struct clk_programmable_layout at91rm9200_programmable_layout; 92 extern const struct clk_programmable_layout at91sam9g45_programmable_layout; 93 extern const struct clk_programmable_layout at91sam9x5_programmable_layout; 94 95 struct clk_pcr_layout { 96 u32 offset; 97 u32 cmd; 98 u32 div_mask; 99 u32 gckcss_mask; 100 u32 pid_mask; 101 }; 102 103 /** 104 * struct at91_clk_pms - Power management state for AT91 clock 105 * @rate: clock rate 106 * @parent_rate: clock parent rate 107 * @status: clock status (enabled or disabled) 108 * @parent: clock parent index 109 */ 110 struct at91_clk_pms { 111 unsigned long rate; 112 unsigned long parent_rate; 113 unsigned int status; 114 unsigned int parent; 115 }; 116 117 #define field_get(_mask, _reg) (((_reg) & (_mask)) >> (ffs(_mask) - 1)) 118 #define field_prep(_mask, _val) (((_val) << (ffs(_mask) - 1)) & (_mask)) 119 120 #define ndck(a, s) (a[s - 1].id + 1) 121 #define nck(a) (a[ARRAY_SIZE(a) - 1].id + 1) 122 struct pmc_data *pmc_data_allocate(unsigned int ncore, unsigned int nsystem, 123 unsigned int nperiph, unsigned int ngck, 124 unsigned int npck); 125 126 int of_at91_get_clk_range(struct device_node *np, const char *propname, 127 struct clk_range *range); 128 129 struct clk_hw *of_clk_hw_pmc_get(struct of_phandle_args *clkspec, void *data); 130 131 struct clk_hw * __init 132 at91_clk_register_audio_pll_frac(struct regmap *regmap, const char *name, 133 const char *parent_name); 134 135 struct clk_hw * __init 136 at91_clk_register_audio_pll_pad(struct regmap *regmap, const char *name, 137 const char *parent_name); 138 139 struct clk_hw * __init 140 at91_clk_register_audio_pll_pmc(struct regmap *regmap, const char *name, 141 const char *parent_name); 142 143 struct clk_hw * __init 144 at91_clk_register_generated(struct regmap *regmap, spinlock_t *lock, 145 const struct clk_pcr_layout *layout, 146 const char *name, const char **parent_names, 147 u32 *mux_table, u8 num_parents, u8 id, 148 const struct clk_range *range, int chg_pid); 149 150 struct clk_hw * __init 151 at91_clk_register_h32mx(struct regmap *regmap, const char *name, 152 const char *parent_name); 153 154 struct clk_hw * __init 155 at91_clk_i2s_mux_register(struct regmap *regmap, const char *name, 156 const char * const *parent_names, 157 unsigned int num_parents, u8 bus_id); 158 159 struct clk_hw * __init 160 at91_clk_register_main_rc_osc(struct regmap *regmap, const char *name, 161 u32 frequency, u32 accuracy); 162 struct clk_hw * __init 163 at91_clk_register_main_osc(struct regmap *regmap, const char *name, 164 const char *parent_name, bool bypass); 165 struct clk_hw * __init 166 at91_clk_register_rm9200_main(struct regmap *regmap, 167 const char *name, 168 const char *parent_name); 169 struct clk_hw * __init 170 at91_clk_register_sam9x5_main(struct regmap *regmap, const char *name, 171 const char **parent_names, int num_parents); 172 173 struct clk_hw * __init 174 at91_clk_register_master_pres(struct regmap *regmap, const char *name, 175 int num_parents, const char **parent_names, 176 const struct clk_master_layout *layout, 177 const struct clk_master_characteristics *characteristics, 178 spinlock_t *lock, u32 flags, int chg_pid); 179 180 struct clk_hw * __init 181 at91_clk_register_master_div(struct regmap *regmap, const char *name, 182 const char *parent_names, 183 const struct clk_master_layout *layout, 184 const struct clk_master_characteristics *characteristics, 185 spinlock_t *lock, u32 flags, u32 safe_div); 186 187 struct clk_hw * __init 188 at91_clk_sama7g5_register_master(struct regmap *regmap, 189 const char *name, int num_parents, 190 const char **parent_names, u32 *mux_table, 191 spinlock_t *lock, u8 id, bool critical, 192 int chg_pid); 193 194 struct clk_hw * __init 195 at91_clk_register_peripheral(struct regmap *regmap, const char *name, 196 const char *parent_name, u32 id); 197 struct clk_hw * __init 198 at91_clk_register_sam9x5_peripheral(struct regmap *regmap, spinlock_t *lock, 199 const struct clk_pcr_layout *layout, 200 const char *name, const char *parent_name, 201 u32 id, const struct clk_range *range, 202 int chg_pid); 203 204 struct clk_hw * __init 205 at91_clk_register_pll(struct regmap *regmap, const char *name, 206 const char *parent_name, u8 id, 207 const struct clk_pll_layout *layout, 208 const struct clk_pll_characteristics *characteristics); 209 struct clk_hw * __init 210 at91_clk_register_plldiv(struct regmap *regmap, const char *name, 211 const char *parent_name); 212 213 struct clk_hw * __init 214 sam9x60_clk_register_div_pll(struct regmap *regmap, spinlock_t *lock, 215 const char *name, const char *parent_name, u8 id, 216 const struct clk_pll_characteristics *characteristics, 217 const struct clk_pll_layout *layout, u32 flags, 218 u32 safe_div); 219 220 struct clk_hw * __init 221 sam9x60_clk_register_frac_pll(struct regmap *regmap, spinlock_t *lock, 222 const char *name, const char *parent_name, 223 struct clk_hw *parent_hw, u8 id, 224 const struct clk_pll_characteristics *characteristics, 225 const struct clk_pll_layout *layout, u32 flags); 226 227 struct clk_hw * __init 228 at91_clk_register_programmable(struct regmap *regmap, const char *name, 229 const char **parent_names, u8 num_parents, u8 id, 230 const struct clk_programmable_layout *layout, 231 u32 *mux_table); 232 233 struct clk_hw * __init 234 at91_clk_register_sam9260_slow(struct regmap *regmap, 235 const char *name, 236 const char **parent_names, 237 int num_parents); 238 239 struct clk_hw * __init 240 at91sam9x5_clk_register_smd(struct regmap *regmap, const char *name, 241 const char **parent_names, u8 num_parents); 242 243 struct clk_hw * __init 244 at91_clk_register_system(struct regmap *regmap, const char *name, 245 const char *parent_name, u8 id); 246 247 struct clk_hw * __init 248 at91sam9x5_clk_register_usb(struct regmap *regmap, const char *name, 249 const char **parent_names, u8 num_parents); 250 struct clk_hw * __init 251 at91sam9n12_clk_register_usb(struct regmap *regmap, const char *name, 252 const char *parent_name); 253 struct clk_hw * __init 254 sam9x60_clk_register_usb(struct regmap *regmap, const char *name, 255 const char **parent_names, u8 num_parents); 256 struct clk_hw * __init 257 at91rm9200_clk_register_usb(struct regmap *regmap, const char *name, 258 const char *parent_name, const u32 *divisors); 259 260 struct clk_hw * __init 261 at91_clk_register_utmi(struct regmap *regmap_pmc, struct regmap *regmap_sfr, 262 const char *name, const char *parent_name); 263 264 struct clk_hw * __init 265 at91_clk_sama7g5_register_utmi(struct regmap *regmap, const char *name, 266 const char *parent_name); 267 268 #endif /* __PMC_H_ */ 269