1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __MACH_IMX_CLK_H 3 #define __MACH_IMX_CLK_H 4 5 #include <linux/bits.h> 6 #include <linux/spinlock.h> 7 #include <linux/clk-provider.h> 8 9 extern spinlock_t imx_ccm_lock; 10 extern bool mcore_booted; 11 12 void imx_check_clocks(struct clk *clks[], unsigned int count); 13 void imx_check_clk_hws(struct clk_hw *clks[], unsigned int count); 14 #ifndef MODULE 15 void imx_register_uart_clocks(void); 16 #else 17 static inline void imx_register_uart_clocks(void) 18 { 19 } 20 #endif 21 void imx_mmdc_mask_handshake(void __iomem *ccm_base, unsigned int chn); 22 void imx_unregister_hw_clocks(struct clk_hw *hws[], unsigned int count); 23 24 extern void imx_cscmr1_fixup(u32 *val); 25 26 enum imx_pllv1_type { 27 IMX_PLLV1_IMX1, 28 IMX_PLLV1_IMX21, 29 IMX_PLLV1_IMX25, 30 IMX_PLLV1_IMX27, 31 IMX_PLLV1_IMX31, 32 IMX_PLLV1_IMX35, 33 }; 34 35 enum imx_sscg_pll_type { 36 SCCG_PLL1, 37 SCCG_PLL2, 38 }; 39 40 enum imx_pll14xx_type { 41 PLL_1416X, 42 PLL_1443X, 43 }; 44 45 enum imx_pllv4_type { 46 IMX_PLLV4_IMX7ULP, 47 IMX_PLLV4_IMX8ULP, 48 IMX_PLLV4_IMX8ULP_1GHZ, 49 }; 50 51 enum imx_pfdv2_type { 52 IMX_PFDV2_IMX7ULP, 53 IMX_PFDV2_IMX8ULP, 54 }; 55 56 /* NOTE: Rate table should be kept sorted in descending order. */ 57 struct imx_pll14xx_rate_table { 58 unsigned int rate; 59 unsigned int pdiv; 60 unsigned int mdiv; 61 unsigned int sdiv; 62 unsigned int kdiv; 63 }; 64 65 struct imx_pll14xx_clk { 66 enum imx_pll14xx_type type; 67 const struct imx_pll14xx_rate_table *rate_table; 68 int rate_count; 69 int flags; 70 }; 71 72 extern struct imx_pll14xx_clk imx_1416x_pll; 73 extern struct imx_pll14xx_clk imx_1443x_pll; 74 extern struct imx_pll14xx_clk imx_1443x_dram_pll; 75 76 #define CLK_FRACN_GPPLL_INTEGER BIT(0) 77 #define CLK_FRACN_GPPLL_FRACN BIT(1) 78 79 /* NOTE: Rate table should be kept sorted in descending order. */ 80 struct imx_fracn_gppll_rate_table { 81 unsigned int rate; 82 unsigned int mfi; 83 unsigned int mfn; 84 unsigned int mfd; 85 unsigned int rdiv; 86 unsigned int odiv; 87 }; 88 89 struct imx_fracn_gppll_clk { 90 const struct imx_fracn_gppll_rate_table *rate_table; 91 int rate_count; 92 int flags; 93 }; 94 95 struct clk_hw *imx_clk_fracn_gppll(const char *name, const char *parent_name, void __iomem *base, 96 const struct imx_fracn_gppll_clk *pll_clk); 97 struct clk_hw *imx_clk_fracn_gppll_integer(const char *name, const char *parent_name, 98 void __iomem *base, 99 const struct imx_fracn_gppll_clk *pll_clk); 100 101 extern struct imx_fracn_gppll_clk imx_fracn_gppll; 102 extern struct imx_fracn_gppll_clk imx_fracn_gppll_integer; 103 104 #define imx_clk_cpu(name, parent_name, div, mux, pll, step) \ 105 to_clk(imx_clk_hw_cpu(name, parent_name, div, mux, pll, step)) 106 107 #define clk_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \ 108 cgr_val, cgr_mask, clk_gate_flags, lock, share_count) \ 109 to_clk(clk_hw_register_gate2(dev, name, parent_name, flags, reg, bit_idx, \ 110 cgr_val, cgr_mask, clk_gate_flags, lock, share_count)) 111 112 #define imx_clk_pllv3(type, name, parent_name, base, div_mask) \ 113 to_clk(imx_clk_hw_pllv3(type, name, parent_name, base, div_mask)) 114 115 #define imx_clk_pfd(name, parent_name, reg, idx) \ 116 to_clk(imx_clk_hw_pfd(name, parent_name, reg, idx)) 117 118 #define imx_clk_gate_exclusive(name, parent, reg, shift, exclusive_mask) \ 119 to_clk(imx_clk_hw_gate_exclusive(name, parent, reg, shift, exclusive_mask)) 120 121 #define imx_clk_fixed(name, rate) \ 122 to_clk(imx_clk_hw_fixed(name, rate)) 123 124 #define imx_clk_fixed_factor(name, parent, mult, div) \ 125 to_clk(imx_clk_hw_fixed_factor(name, parent, mult, div)) 126 127 #define imx_clk_divider(name, parent, reg, shift, width) \ 128 to_clk(imx_clk_hw_divider(name, parent, reg, shift, width)) 129 130 #define imx_clk_divider_flags(name, parent, reg, shift, width, flags) \ 131 to_clk(imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags)) 132 133 #define imx_clk_gate(name, parent, reg, shift) \ 134 to_clk(imx_clk_hw_gate(name, parent, reg, shift)) 135 136 #define imx_clk_gate_dis(name, parent, reg, shift) \ 137 to_clk(imx_clk_hw_gate_dis(name, parent, reg, shift)) 138 139 #define imx_clk_gate2(name, parent, reg, shift) \ 140 to_clk(imx_clk_hw_gate2(name, parent, reg, shift)) 141 142 #define imx_clk_gate2_cgr(name, parent, reg, shift, cgr_val) \ 143 to_clk(__imx_clk_hw_gate2(name, parent, reg, shift, cgr_val, 0, NULL)) 144 145 #define imx_clk_gate2_flags(name, parent, reg, shift, flags) \ 146 to_clk(imx_clk_hw_gate2_flags(name, parent, reg, shift, flags)) 147 148 #define imx_clk_mux(name, reg, shift, width, parents, num_parents) \ 149 to_clk(imx_clk_hw_mux(name, reg, shift, width, parents, num_parents)) 150 151 #define imx_clk_mux_flags(name, reg, shift, width, parents, num_parents, flags) \ 152 to_clk(imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags)) 153 154 #define imx_clk_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \ 155 to_clk(imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags)) 156 157 #define imx_clk_pllv1(type, name, parent, base) \ 158 to_clk(imx_clk_hw_pllv1(type, name, parent, base)) 159 160 #define imx_clk_pllv2(name, parent, base) \ 161 to_clk(imx_clk_hw_pllv2(name, parent, base)) 162 163 #define imx_clk_hw_gate(name, parent, reg, shift) \ 164 imx_clk_hw_gate_flags(name, parent, reg, shift, 0) 165 166 #define imx_clk_hw_gate2(name, parent, reg, shift) \ 167 imx_clk_hw_gate2_flags(name, parent, reg, shift, 0) 168 169 #define imx_clk_hw_gate_dis(name, parent, reg, shift) \ 170 imx_clk_hw_gate_dis_flags(name, parent, reg, shift, 0) 171 172 #define imx_clk_hw_gate_dis_flags(name, parent, reg, shift, flags) \ 173 __imx_clk_hw_gate(name, parent, reg, shift, flags, CLK_GATE_SET_TO_DISABLE) 174 175 #define imx_clk_hw_gate_flags(name, parent, reg, shift, flags) \ 176 __imx_clk_hw_gate(name, parent, reg, shift, flags, 0) 177 178 #define imx_clk_hw_gate2_flags(name, parent, reg, shift, flags) \ 179 __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, flags, NULL) 180 181 #define imx_clk_hw_gate2_shared(name, parent, reg, shift, shared_count) \ 182 __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, 0, shared_count) 183 184 #define imx_clk_hw_gate2_shared2(name, parent, reg, shift, shared_count) \ 185 __imx_clk_hw_gate2(name, parent, reg, shift, 0x3, CLK_OPS_PARENT_ENABLE, shared_count) 186 187 #define imx_clk_hw_gate3(name, parent, reg, shift) \ 188 imx_clk_hw_gate3_flags(name, parent, reg, shift, 0) 189 190 #define imx_clk_hw_gate3_flags(name, parent, reg, shift, flags) \ 191 __imx_clk_hw_gate(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE, 0) 192 193 #define imx_clk_hw_gate4(name, parent, reg, shift) \ 194 imx_clk_hw_gate4_flags(name, parent, reg, shift, 0) 195 196 #define imx_clk_hw_gate4_flags(name, parent, reg, shift, flags) \ 197 imx_clk_hw_gate2_flags(name, parent, reg, shift, flags | CLK_OPS_PARENT_ENABLE) 198 199 #define imx_clk_hw_mux2(name, reg, shift, width, parents, num_parents) \ 200 imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, 0) 201 202 #define imx_clk_hw_mux(name, reg, shift, width, parents, num_parents) \ 203 __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, 0, 0) 204 205 #define imx_clk_hw_mux_flags(name, reg, shift, width, parents, num_parents, flags) \ 206 __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags, 0) 207 208 #define imx_clk_hw_mux_ldb(name, reg, shift, width, parents, num_parents) \ 209 __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, CLK_SET_RATE_PARENT, CLK_MUX_READ_ONLY) 210 211 #define imx_clk_hw_mux2_flags(name, reg, shift, width, parents, num_parents, flags) \ 212 __imx_clk_hw_mux(name, reg, shift, width, parents, num_parents, flags | CLK_OPS_PARENT_ENABLE, 0) 213 214 #define imx_clk_hw_divider(name, parent, reg, shift, width) \ 215 __imx_clk_hw_divider(name, parent, reg, shift, width, CLK_SET_RATE_PARENT) 216 217 #define imx_clk_hw_divider2(name, parent, reg, shift, width) \ 218 __imx_clk_hw_divider(name, parent, reg, shift, width, \ 219 CLK_SET_RATE_PARENT | CLK_OPS_PARENT_ENABLE) 220 221 #define imx_clk_hw_divider_flags(name, parent, reg, shift, width, flags) \ 222 __imx_clk_hw_divider(name, parent, reg, shift, width, flags) 223 224 #define imx_clk_hw_pll14xx(name, parent_name, base, pll_clk) \ 225 imx_dev_clk_hw_pll14xx(NULL, name, parent_name, base, pll_clk) 226 227 struct clk_hw *imx_dev_clk_hw_pll14xx(struct device *dev, const char *name, 228 const char *parent_name, void __iomem *base, 229 const struct imx_pll14xx_clk *pll_clk); 230 231 struct clk_hw *imx_clk_hw_pllv1(enum imx_pllv1_type type, const char *name, 232 const char *parent, void __iomem *base); 233 234 struct clk_hw *imx_clk_hw_pllv2(const char *name, const char *parent, 235 void __iomem *base); 236 237 struct clk_hw *imx_clk_hw_frac_pll(const char *name, const char *parent_name, 238 void __iomem *base); 239 240 struct clk_hw *imx_clk_hw_sscg_pll(const char *name, 241 const char * const *parent_names, 242 u8 num_parents, 243 u8 parent, u8 bypass1, u8 bypass2, 244 void __iomem *base, 245 unsigned long flags); 246 247 enum imx_pllv3_type { 248 IMX_PLLV3_GENERIC, 249 IMX_PLLV3_SYS, 250 IMX_PLLV3_USB, 251 IMX_PLLV3_USB_VF610, 252 IMX_PLLV3_AV, 253 IMX_PLLV3_ENET, 254 IMX_PLLV3_ENET_IMX7, 255 IMX_PLLV3_SYS_VF610, 256 IMX_PLLV3_DDR_IMX7, 257 IMX_PLLV3_AV_IMX7, 258 }; 259 260 struct clk_hw *imx_clk_hw_pllv3(enum imx_pllv3_type type, const char *name, 261 const char *parent_name, void __iomem *base, u32 div_mask); 262 263 #define PLL_1416X_RATE(_rate, _m, _p, _s) \ 264 { \ 265 .rate = (_rate), \ 266 .mdiv = (_m), \ 267 .pdiv = (_p), \ 268 .sdiv = (_s), \ 269 } 270 271 #define PLL_1443X_RATE(_rate, _m, _p, _s, _k) \ 272 { \ 273 .rate = (_rate), \ 274 .mdiv = (_m), \ 275 .pdiv = (_p), \ 276 .sdiv = (_s), \ 277 .kdiv = (_k), \ 278 } 279 280 struct clk_hw *imx_clk_hw_pllv4(enum imx_pllv4_type type, const char *name, 281 const char *parent_name, void __iomem *base); 282 283 struct clk_hw *clk_hw_register_gate2(struct device *dev, const char *name, 284 const char *parent_name, unsigned long flags, 285 void __iomem *reg, u8 bit_idx, u8 cgr_val, u8 cgr_mask, 286 u8 clk_gate_flags, spinlock_t *lock, 287 unsigned int *share_count); 288 289 struct clk * imx_obtain_fixed_clock( 290 const char *name, unsigned long rate); 291 292 struct clk_hw *imx_obtain_fixed_clock_hw( 293 const char *name, unsigned long rate); 294 295 struct clk_hw *imx_obtain_fixed_of_clock(struct device_node *np, 296 const char *name, unsigned long rate); 297 298 struct clk_hw *imx_get_clk_hw_by_name(struct device_node *np, const char *name); 299 300 struct clk_hw *imx_clk_hw_gate_exclusive(const char *name, const char *parent, 301 void __iomem *reg, u8 shift, u32 exclusive_mask); 302 303 struct clk_hw *imx_clk_hw_pfd(const char *name, const char *parent_name, 304 void __iomem *reg, u8 idx); 305 306 struct clk_hw *imx_clk_hw_pfdv2(enum imx_pfdv2_type type, const char *name, 307 const char *parent_name, void __iomem *reg, u8 idx); 308 309 struct clk_hw *imx_clk_hw_busy_divider(const char *name, const char *parent_name, 310 void __iomem *reg, u8 shift, u8 width, 311 void __iomem *busy_reg, u8 busy_shift); 312 313 struct clk_hw *imx_clk_hw_busy_mux(const char *name, void __iomem *reg, u8 shift, 314 u8 width, void __iomem *busy_reg, u8 busy_shift, 315 const char * const *parent_names, int num_parents); 316 317 struct clk_hw *imx7ulp_clk_hw_composite(const char *name, 318 const char * const *parent_names, 319 int num_parents, bool mux_present, 320 bool rate_present, bool gate_present, 321 void __iomem *reg); 322 323 struct clk_hw *imx8ulp_clk_hw_composite(const char *name, 324 const char * const *parent_names, 325 int num_parents, bool mux_present, 326 bool rate_present, bool gate_present, 327 void __iomem *reg, bool has_swrst); 328 329 struct clk_hw *imx_clk_hw_fixup_divider(const char *name, const char *parent, 330 void __iomem *reg, u8 shift, u8 width, 331 void (*fixup)(u32 *val)); 332 333 struct clk_hw *imx_clk_hw_fixup_mux(const char *name, void __iomem *reg, 334 u8 shift, u8 width, const char * const *parents, 335 int num_parents, void (*fixup)(u32 *val)); 336 337 static inline struct clk *to_clk(struct clk_hw *hw) 338 { 339 if (IS_ERR_OR_NULL(hw)) 340 return ERR_CAST(hw); 341 return hw->clk; 342 } 343 344 static inline struct clk_hw *imx_clk_hw_fixed(const char *name, int rate) 345 { 346 return clk_hw_register_fixed_rate(NULL, name, NULL, 0, rate); 347 } 348 349 static inline struct clk_hw *imx_clk_hw_fixed_factor(const char *name, 350 const char *parent, unsigned int mult, unsigned int div) 351 { 352 return clk_hw_register_fixed_factor(NULL, name, parent, 353 CLK_SET_RATE_PARENT, mult, div); 354 } 355 356 static inline struct clk_hw *imx_clk_hw_divider_closest(const char *name, 357 const char *parent, 358 void __iomem *reg, u8 shift, 359 u8 width) 360 { 361 return clk_hw_register_divider(NULL, name, parent, 0, 362 reg, shift, width, CLK_DIVIDER_ROUND_CLOSEST, &imx_ccm_lock); 363 } 364 365 static inline struct clk_hw *__imx_clk_hw_divider(const char *name, 366 const char *parent, 367 void __iomem *reg, u8 shift, 368 u8 width, unsigned long flags) 369 { 370 return clk_hw_register_divider(NULL, name, parent, flags, 371 reg, shift, width, 0, &imx_ccm_lock); 372 } 373 374 static inline struct clk_hw *__imx_clk_hw_gate(const char *name, const char *parent, 375 void __iomem *reg, u8 shift, 376 unsigned long flags, 377 unsigned long clk_gate_flags) 378 { 379 return clk_hw_register_gate(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg, 380 shift, clk_gate_flags, &imx_ccm_lock); 381 } 382 383 static inline struct clk_hw *__imx_clk_hw_gate2(const char *name, const char *parent, 384 void __iomem *reg, u8 shift, u8 cgr_val, 385 unsigned long flags, 386 unsigned int *share_count) 387 { 388 return clk_hw_register_gate2(NULL, name, parent, flags | CLK_SET_RATE_PARENT, reg, 389 shift, cgr_val, 0x3, 0, &imx_ccm_lock, share_count); 390 } 391 392 static inline struct clk_hw *__imx_clk_hw_mux(const char *name, void __iomem *reg, 393 u8 shift, u8 width, const char * const *parents, 394 int num_parents, unsigned long flags, unsigned long clk_mux_flags) 395 { 396 return clk_hw_register_mux(NULL, name, parents, num_parents, 397 flags | CLK_SET_RATE_NO_REPARENT, reg, shift, 398 width, clk_mux_flags, &imx_ccm_lock); 399 } 400 401 struct clk_hw *imx_clk_hw_cpu(const char *name, const char *parent_name, 402 struct clk *div, struct clk *mux, struct clk *pll, 403 struct clk *step); 404 405 #define IMX_COMPOSITE_CORE BIT(0) 406 #define IMX_COMPOSITE_BUS BIT(1) 407 #define IMX_COMPOSITE_FW_MANAGED BIT(2) 408 409 #define IMX_COMPOSITE_CLK_FLAGS_DEFAULT \ 410 (CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE) 411 #define IMX_COMPOSITE_CLK_FLAGS_CRITICAL \ 412 (IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_IS_CRITICAL) 413 #define IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE \ 414 (IMX_COMPOSITE_CLK_FLAGS_DEFAULT | CLK_GET_RATE_NOCACHE) 415 #define IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE \ 416 (IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE | CLK_IS_CRITICAL) 417 418 struct clk_hw *__imx8m_clk_hw_composite(const char *name, 419 const char * const *parent_names, 420 int num_parents, 421 void __iomem *reg, 422 u32 composite_flags, 423 unsigned long flags); 424 425 #define _imx8m_clk_hw_composite(name, parent_names, reg, composite_flags, flags) \ 426 __imx8m_clk_hw_composite(name, parent_names, \ 427 ARRAY_SIZE(parent_names), reg, composite_flags, flags) 428 429 #define imx8m_clk_hw_composite(name, parent_names, reg) \ 430 _imx8m_clk_hw_composite(name, parent_names, reg, \ 431 0, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) 432 433 #define imx8m_clk_hw_composite_flags(name, parent_names, reg, flags) \ 434 _imx8m_clk_hw_composite(name, parent_names, reg, \ 435 0, IMX_COMPOSITE_CLK_FLAGS_DEFAULT | flags) 436 437 #define imx8m_clk_hw_composite_critical(name, parent_names, reg) \ 438 _imx8m_clk_hw_composite(name, parent_names, reg, \ 439 0, IMX_COMPOSITE_CLK_FLAGS_CRITICAL) 440 441 #define imx8m_clk_hw_composite_bus(name, parent_names, reg) \ 442 _imx8m_clk_hw_composite(name, parent_names, reg, \ 443 IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) 444 445 #define imx8m_clk_hw_composite_bus_critical(name, parent_names, reg) \ 446 _imx8m_clk_hw_composite(name, parent_names, reg, \ 447 IMX_COMPOSITE_BUS, IMX_COMPOSITE_CLK_FLAGS_CRITICAL) 448 449 #define imx8m_clk_hw_composite_core(name, parent_names, reg) \ 450 _imx8m_clk_hw_composite(name, parent_names, reg, \ 451 IMX_COMPOSITE_CORE, IMX_COMPOSITE_CLK_FLAGS_DEFAULT) 452 453 #define imx8m_clk_hw_fw_managed_composite(name, parent_names, reg) \ 454 _imx8m_clk_hw_composite(name, parent_names, reg, \ 455 IMX_COMPOSITE_FW_MANAGED, \ 456 IMX_COMPOSITE_CLK_FLAGS_GET_RATE_NO_CACHE) 457 458 #define imx8m_clk_hw_fw_managed_composite_critical(name, parent_names, reg) \ 459 _imx8m_clk_hw_composite(name, parent_names, reg, \ 460 IMX_COMPOSITE_FW_MANAGED, \ 461 IMX_COMPOSITE_CLK_FLAGS_CRITICAL_GET_RATE_NO_CACHE) 462 463 struct clk_hw *imx93_clk_composite_flags(const char *name, 464 const char * const *parent_names, 465 int num_parents, 466 void __iomem *reg, 467 u32 domain_id, 468 unsigned long flags); 469 #define imx93_clk_composite(name, parent_names, num_parents, reg, domain_id) \ 470 imx93_clk_composite_flags(name, parent_names, num_parents, reg, domain_id \ 471 CLK_SET_RATE_NO_REPARENT | CLK_OPS_PARENT_ENABLE) 472 473 struct clk_hw *imx93_clk_gate(struct device *dev, const char *name, const char *parent_name, 474 unsigned long flags, void __iomem *reg, u32 bit_idx, u32 val, 475 u32 mask, u32 domain_id, unsigned int *share_count); 476 477 struct clk_hw *imx_clk_hw_divider_gate(const char *name, const char *parent_name, 478 unsigned long flags, void __iomem *reg, u8 shift, u8 width, 479 u8 clk_divider_flags, const struct clk_div_table *table, 480 spinlock_t *lock); 481 482 struct clk_hw *imx_clk_gpr_mux(const char *name, const char *compatible, 483 u32 reg, const char **parent_names, 484 u8 num_parents, const u32 *mux_table, u32 mask); 485 486 #endif 487