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
imx_register_uart_clocks(void)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
to_clk(struct clk_hw * hw)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
imx_clk_hw_fixed(const char * name,int rate)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
imx_clk_hw_fixed_factor(const char * name,const char * parent,unsigned int mult,unsigned int div)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
imx_clk_hw_divider_closest(const char * name,const char * parent,void __iomem * reg,u8 shift,u8 width)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
__imx_clk_hw_divider(const char * name,const char * parent,void __iomem * reg,u8 shift,u8 width,unsigned long flags)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
__imx_clk_hw_gate(const char * name,const char * parent,void __iomem * reg,u8 shift,unsigned long flags,unsigned long clk_gate_flags)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
__imx_clk_hw_gate2(const char * name,const char * parent,void __iomem * reg,u8 shift,u8 cgr_val,unsigned long flags,unsigned int * share_count)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
__imx_clk_hw_mux(const char * name,void __iomem * reg,u8 shift,u8 width,const char * const * parents,int num_parents,unsigned long flags,unsigned long clk_mux_flags)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