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Merge tag 'trace-v5.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
[linux/fpc-iii.git] / drivers / clk / at91 / sama7g5.c
bloba6e20b35960e035d4b8c7324d807e3665001a5d7
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * SAMA7G5 PMC code.
4 *
5 * Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries
6 *
7 * Author: Claudiu Beznea <claudiu.beznea@microchip.com>
8 *
9 */
10 #include <linux/clk.h>
11 #include <linux/clk-provider.h>
12 #include <linux/mfd/syscon.h>
13 #include <linux/slab.h>
14
15 #include <dt-bindings/clock/at91.h>
16
17 #include "pmc.h"
18
19 #define SAMA7G5_INIT_TABLE(_table, _count) \
20 do { \
21 u8 _i; \
22 for (_i = 0; _i < (_count); _i++) \
23 (_table)[_i] = _i; \
24 } while (0)
25
26 #define SAMA7G5_FILL_TABLE(_to, _from, _count) \
27 do { \
28 u8 _i; \
29 for (_i = 0; _i < (_count); _i++) { \
30 (_to)[_i] = (_from)[_i]; \
31 } \
32 } while (0)
33
34 static DEFINE_SPINLOCK(pmc_pll_lock);
35 static DEFINE_SPINLOCK(pmc_mck0_lock);
36 static DEFINE_SPINLOCK(pmc_mckX_lock);
37
38 /**
39 * PLL clocks identifiers
40 * @PLL_ID_CPU: CPU PLL identifier
41 * @PLL_ID_SYS: System PLL identifier
42 * @PLL_ID_DDR: DDR PLL identifier
43 * @PLL_ID_IMG: Image subsystem PLL identifier
44 * @PLL_ID_BAUD: Baud PLL identifier
45 * @PLL_ID_AUDIO: Audio PLL identifier
46 * @PLL_ID_ETH: Ethernet PLL identifier
47 */
48 enum pll_ids {
49 PLL_ID_CPU,
50 PLL_ID_SYS,
51 PLL_ID_DDR,
52 PLL_ID_IMG,
53 PLL_ID_BAUD,
54 PLL_ID_AUDIO,
55 PLL_ID_ETH,
56 PLL_ID_MAX,
57 };
58
59 /**
60 * PLL type identifiers
61 * @PLL_TYPE_FRAC: fractional PLL identifier
62 * @PLL_TYPE_DIV: divider PLL identifier
63 */
64 enum pll_type {
65 PLL_TYPE_FRAC,
66 PLL_TYPE_DIV,
67 };
68
69 /* Layout for fractional PLLs. */
70 static const struct clk_pll_layout pll_layout_frac = {
71 .mul_mask = GENMASK(31, 24),
72 .frac_mask = GENMASK(21, 0),
73 .mul_shift = 24,
74 .frac_shift = 0,
75 };
76
77 /* Layout for DIVPMC dividers. */
78 static const struct clk_pll_layout pll_layout_divpmc = {
79 .div_mask = GENMASK(7, 0),
80 .endiv_mask = BIT(29),
81 .div_shift = 0,
82 .endiv_shift = 29,
83 };
84
85 /* Layout for DIVIO dividers. */
86 static const struct clk_pll_layout pll_layout_divio = {
87 .div_mask = GENMASK(19, 12),
88 .endiv_mask = BIT(30),
89 .div_shift = 12,
90 .endiv_shift = 30,
91 };
92
93 /*
94 * CPU PLL output range.
95 * Notice: The upper limit has been setup to 1000000002 due to hardware
96 * block which cannot output exactly 1GHz.
97 */
98 static const struct clk_range cpu_pll_outputs[] = {
99 { .min = 2343750, .max = 1000000002 },
100 };
101
102 /* PLL output range. */
103 static const struct clk_range pll_outputs[] = {
104 { .min = 2343750, .max = 1200000000 },
105 };
106
107 /* CPU PLL characteristics. */
108 static const struct clk_pll_characteristics cpu_pll_characteristics = {
109 .input = { .min = 12000000, .max = 50000000 },
110 .num_output = ARRAY_SIZE(cpu_pll_outputs),
111 .output = cpu_pll_outputs,
112 };
113
114 /* PLL characteristics. */
115 static const struct clk_pll_characteristics pll_characteristics = {
116 .input = { .min = 12000000, .max = 50000000 },
117 .num_output = ARRAY_SIZE(pll_outputs),
118 .output = pll_outputs,
119 };
120
121 /**
122 * PLL clocks description
123 * @n: clock name
124 * @p: clock parent
125 * @l: clock layout
126 * @c: clock characteristics
127 * @t: clock type
128 * @f: clock flags
129 * @eid: export index in sama7g5->chws[] array
130 */
131 static const struct {
132 const char *n;
133 const char *p;
134 const struct clk_pll_layout *l;
135 const struct clk_pll_characteristics *c;
136 unsigned long f;
137 u8 t;
138 u8 eid;
139 } sama7g5_plls[][PLL_ID_MAX] = {
140 [PLL_ID_CPU] = {
141 { .n = "cpupll_fracck",
142 .p = "mainck",
143 .l = &pll_layout_frac,
144 .c = &cpu_pll_characteristics,
145 .t = PLL_TYPE_FRAC,
146 /*
147 * This feeds cpupll_divpmcck which feeds CPU. It should
148 * not be disabled.
149 */
150 .f = CLK_IS_CRITICAL, },
151
152 { .n = "cpupll_divpmcck",
153 .p = "cpupll_fracck",
154 .l = &pll_layout_divpmc,
155 .c = &cpu_pll_characteristics,
156 .t = PLL_TYPE_DIV,
157 /* This feeds CPU. It should not be disabled. */
158 .f = CLK_IS_CRITICAL | CLK_SET_RATE_PARENT,
159 .eid = PMC_CPUPLL, },
160 },
161
162 [PLL_ID_SYS] = {
163 { .n = "syspll_fracck",
164 .p = "mainck",
165 .l = &pll_layout_frac,
166 .c = &pll_characteristics,
167 .t = PLL_TYPE_FRAC,
168 /*
169 * This feeds syspll_divpmcck which may feed critial parts
170 * of the systems like timers. Therefore it should not be
171 * disabled.
172 */
173 .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, },
174
175 { .n = "syspll_divpmcck",
176 .p = "syspll_fracck",
177 .l = &pll_layout_divpmc,
178 .c = &pll_characteristics,
179 .t = PLL_TYPE_DIV,
180 /*
181 * This may feed critial parts of the systems like timers.
182 * Therefore it should not be disabled.
183 */
184 .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE,
185 .eid = PMC_SYSPLL, },
186 },
187
188 [PLL_ID_DDR] = {
189 { .n = "ddrpll_fracck",
190 .p = "mainck",
191 .l = &pll_layout_frac,
192 .c = &pll_characteristics,
193 .t = PLL_TYPE_FRAC,
194 /*
195 * This feeds ddrpll_divpmcck which feeds DDR. It should not
196 * be disabled.
197 */
198 .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, },
199
200 { .n = "ddrpll_divpmcck",
201 .p = "ddrpll_fracck",
202 .l = &pll_layout_divpmc,
203 .c = &pll_characteristics,
204 .t = PLL_TYPE_DIV,
205 /* This feeds DDR. It should not be disabled. */
206 .f = CLK_IS_CRITICAL | CLK_SET_RATE_GATE, },
207 },
208
209 [PLL_ID_IMG] = {
210 { .n = "imgpll_fracck",
211 .p = "mainck",
212 .l = &pll_layout_frac,
213 .c = &pll_characteristics,
214 .t = PLL_TYPE_FRAC,
215 .f = CLK_SET_RATE_GATE, },
216
217 { .n = "imgpll_divpmcck",
218 .p = "imgpll_fracck",
219 .l = &pll_layout_divpmc,
220 .c = &pll_characteristics,
221 .t = PLL_TYPE_DIV,
222 .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
223 CLK_SET_RATE_PARENT, },
224 },
225
226 [PLL_ID_BAUD] = {
227 { .n = "baudpll_fracck",
228 .p = "mainck",
229 .l = &pll_layout_frac,
230 .c = &pll_characteristics,
231 .t = PLL_TYPE_FRAC,
232 .f = CLK_SET_RATE_GATE, },
233
234 { .n = "baudpll_divpmcck",
235 .p = "baudpll_fracck",
236 .l = &pll_layout_divpmc,
237 .c = &pll_characteristics,
238 .t = PLL_TYPE_DIV,
239 .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
240 CLK_SET_RATE_PARENT, },
241 },
242
243 [PLL_ID_AUDIO] = {
244 { .n = "audiopll_fracck",
245 .p = "main_xtal",
246 .l = &pll_layout_frac,
247 .c = &pll_characteristics,
248 .t = PLL_TYPE_FRAC,
249 .f = CLK_SET_RATE_GATE, },
250
251 { .n = "audiopll_divpmcck",
252 .p = "audiopll_fracck",
253 .l = &pll_layout_divpmc,
254 .c = &pll_characteristics,
255 .t = PLL_TYPE_DIV,
256 .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
257 CLK_SET_RATE_PARENT,
258 .eid = PMC_AUDIOPMCPLL, },
259
260 { .n = "audiopll_diviock",
261 .p = "audiopll_fracck",
262 .l = &pll_layout_divio,
263 .c = &pll_characteristics,
264 .t = PLL_TYPE_DIV,
265 .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
266 CLK_SET_RATE_PARENT,
267 .eid = PMC_AUDIOIOPLL, },
268 },
269
270 [PLL_ID_ETH] = {
271 { .n = "ethpll_fracck",
272 .p = "main_xtal",
273 .l = &pll_layout_frac,
274 .c = &pll_characteristics,
275 .t = PLL_TYPE_FRAC,
276 .f = CLK_SET_RATE_GATE, },
277
278 { .n = "ethpll_divpmcck",
279 .p = "ethpll_fracck",
280 .l = &pll_layout_divpmc,
281 .c = &pll_characteristics,
282 .t = PLL_TYPE_DIV,
283 .f = CLK_SET_RATE_GATE | CLK_SET_PARENT_GATE |
284 CLK_SET_RATE_PARENT, },
285 },
286 };
287
288 /**
289 * Master clock (MCK[1..4]) description
290 * @n: clock name
291 * @ep: extra parents names array
292 * @ep_chg_chg_id: index in parents array that specifies the changeable
293 * parent
294 * @ep_count: extra parents count
295 * @ep_mux_table: mux table for extra parents
296 * @id: clock id
297 * @c: true if clock is critical and cannot be disabled
298 */
299 static const struct {
300 const char *n;
301 const char *ep[4];
302 int ep_chg_id;
303 u8 ep_count;
304 u8 ep_mux_table[4];
305 u8 id;
306 u8 c;
307 } sama7g5_mckx[] = {
308 { .n = "mck1",
309 .id = 1,
310 .ep = { "syspll_divpmcck", },
311 .ep_mux_table = { 5, },
312 .ep_count = 1,
313 .ep_chg_id = INT_MIN,
314 .c = 1, },
315
316 { .n = "mck2",
317 .id = 2,
318 .ep = { "ddrpll_divpmcck", },
319 .ep_mux_table = { 6, },
320 .ep_count = 1,
321 .ep_chg_id = INT_MIN,
322 .c = 1, },
323
324 { .n = "mck3",
325 .id = 3,
326 .ep = { "syspll_divpmcck", "ddrpll_divpmcck", "imgpll_divpmcck", },
327 .ep_mux_table = { 5, 6, 7, },
328 .ep_count = 3,
329 .ep_chg_id = 5, },
330
331 { .n = "mck4",
332 .id = 4,
333 .ep = { "syspll_divpmcck", },
334 .ep_mux_table = { 5, },
335 .ep_count = 1,
336 .ep_chg_id = INT_MIN,
337 .c = 1, },
338 };
339
340 /**
341 * System clock description
342 * @n: clock name
343 * @p: clock parent name
344 * @id: clock id
345 */
346 static const struct {
347 const char *n;
348 const char *p;
349 u8 id;
350 } sama7g5_systemck[] = {
351 { .n = "pck0", .p = "prog0", .id = 8, },
352 { .n = "pck1", .p = "prog1", .id = 9, },
353 { .n = "pck2", .p = "prog2", .id = 10, },
354 { .n = "pck3", .p = "prog3", .id = 11, },
355 { .n = "pck4", .p = "prog4", .id = 12, },
356 { .n = "pck5", .p = "prog5", .id = 13, },
357 { .n = "pck6", .p = "prog6", .id = 14, },
358 { .n = "pck7", .p = "prog7", .id = 15, },
359 };
360
361 /* Mux table for programmable clocks. */
362 static u32 sama7g5_prog_mux_table[] = { 0, 1, 2, 5, 6, 7, 8, 9, 10, };
363
364 /**
365 * Peripheral clock description
366 * @n: clock name
367 * @p: clock parent name
368 * @r: clock range values
369 * @id: clock id
370 * @chgp: index in parent array of the changeable parent
371 */
372 static const struct {
373 const char *n;
374 const char *p;
375 struct clk_range r;
376 u8 chgp;
377 u8 id;
378 } sama7g5_periphck[] = {
379 { .n = "pioA_clk", .p = "mck0", .id = 11, },
380 { .n = "sfr_clk", .p = "mck1", .id = 19, },
381 { .n = "hsmc_clk", .p = "mck1", .id = 21, },
382 { .n = "xdmac0_clk", .p = "mck1", .id = 22, },
383 { .n = "xdmac1_clk", .p = "mck1", .id = 23, },
384 { .n = "xdmac2_clk", .p = "mck1", .id = 24, },
385 { .n = "acc_clk", .p = "mck1", .id = 25, },
386 { .n = "aes_clk", .p = "mck1", .id = 27, },
387 { .n = "tzaesbasc_clk", .p = "mck1", .id = 28, },
388 { .n = "asrc_clk", .p = "mck1", .id = 30, .r = { .max = 200000000, }, },
389 { .n = "cpkcc_clk", .p = "mck0", .id = 32, },
390 { .n = "csi_clk", .p = "mck3", .id = 33, .r = { .max = 266000000, }, .chgp = 1, },
391 { .n = "csi2dc_clk", .p = "mck3", .id = 34, .r = { .max = 266000000, }, .chgp = 1, },
392 { .n = "eic_clk", .p = "mck1", .id = 37, },
393 { .n = "flex0_clk", .p = "mck1", .id = 38, },
394 { .n = "flex1_clk", .p = "mck1", .id = 39, },
395 { .n = "flex2_clk", .p = "mck1", .id = 40, },
396 { .n = "flex3_clk", .p = "mck1", .id = 41, },
397 { .n = "flex4_clk", .p = "mck1", .id = 42, },
398 { .n = "flex5_clk", .p = "mck1", .id = 43, },
399 { .n = "flex6_clk", .p = "mck1", .id = 44, },
400 { .n = "flex7_clk", .p = "mck1", .id = 45, },
401 { .n = "flex8_clk", .p = "mck1", .id = 46, },
402 { .n = "flex9_clk", .p = "mck1", .id = 47, },
403 { .n = "flex10_clk", .p = "mck1", .id = 48, },
404 { .n = "flex11_clk", .p = "mck1", .id = 49, },
405 { .n = "gmac0_clk", .p = "mck1", .id = 51, },
406 { .n = "gmac1_clk", .p = "mck1", .id = 52, },
407 { .n = "icm_clk", .p = "mck1", .id = 55, },
408 { .n = "isc_clk", .p = "mck3", .id = 56, .r = { .max = 266000000, }, .chgp = 1, },
409 { .n = "i2smcc0_clk", .p = "mck1", .id = 57, .r = { .max = 200000000, }, },
410 { .n = "i2smcc1_clk", .p = "mck1", .id = 58, .r = { .max = 200000000, }, },
411 { .n = "matrix_clk", .p = "mck1", .id = 60, },
412 { .n = "mcan0_clk", .p = "mck1", .id = 61, .r = { .max = 200000000, }, },
413 { .n = "mcan1_clk", .p = "mck1", .id = 62, .r = { .max = 200000000, }, },
414 { .n = "mcan2_clk", .p = "mck1", .id = 63, .r = { .max = 200000000, }, },
415 { .n = "mcan3_clk", .p = "mck1", .id = 64, .r = { .max = 200000000, }, },
416 { .n = "mcan4_clk", .p = "mck1", .id = 65, .r = { .max = 200000000, }, },
417 { .n = "mcan5_clk", .p = "mck1", .id = 66, .r = { .max = 200000000, }, },
418 { .n = "pdmc0_clk", .p = "mck1", .id = 68, .r = { .max = 200000000, }, },
419 { .n = "pdmc1_clk", .p = "mck1", .id = 69, .r = { .max = 200000000, }, },
420 { .n = "pit64b0_clk", .p = "mck1", .id = 70, },
421 { .n = "pit64b1_clk", .p = "mck1", .id = 71, },
422 { .n = "pit64b2_clk", .p = "mck1", .id = 72, },
423 { .n = "pit64b3_clk", .p = "mck1", .id = 73, },
424 { .n = "pit64b4_clk", .p = "mck1", .id = 74, },
425 { .n = "pit64b5_clk", .p = "mck1", .id = 75, },
426 { .n = "pwm_clk", .p = "mck1", .id = 77, },
427 { .n = "qspi0_clk", .p = "mck1", .id = 78, },
428 { .n = "qspi1_clk", .p = "mck1", .id = 79, },
429 { .n = "sdmmc0_clk", .p = "mck1", .id = 80, },
430 { .n = "sdmmc1_clk", .p = "mck1", .id = 81, },
431 { .n = "sdmmc2_clk", .p = "mck1", .id = 82, },
432 { .n = "sha_clk", .p = "mck1", .id = 83, },
433 { .n = "spdifrx_clk", .p = "mck1", .id = 84, .r = { .max = 200000000, }, },
434 { .n = "spdiftx_clk", .p = "mck1", .id = 85, .r = { .max = 200000000, }, },
435 { .n = "ssc0_clk", .p = "mck1", .id = 86, .r = { .max = 200000000, }, },
436 { .n = "ssc1_clk", .p = "mck1", .id = 87, .r = { .max = 200000000, }, },
437 { .n = "tcb0_ch0_clk", .p = "mck1", .id = 88, .r = { .max = 200000000, }, },
438 { .n = "tcb0_ch1_clk", .p = "mck1", .id = 89, .r = { .max = 200000000, }, },
439 { .n = "tcb0_ch2_clk", .p = "mck1", .id = 90, .r = { .max = 200000000, }, },
440 { .n = "tcb1_ch0_clk", .p = "mck1", .id = 91, .r = { .max = 200000000, }, },
441 { .n = "tcb1_ch1_clk", .p = "mck1", .id = 92, .r = { .max = 200000000, }, },
442 { .n = "tcb1_ch2_clk", .p = "mck1", .id = 93, .r = { .max = 200000000, }, },
443 { .n = "tcpca_clk", .p = "mck1", .id = 94, },
444 { .n = "tcpcb_clk", .p = "mck1", .id = 95, },
445 { .n = "tdes_clk", .p = "mck1", .id = 96, },
446 { .n = "trng_clk", .p = "mck1", .id = 97, },
447 { .n = "udphsa_clk", .p = "mck1", .id = 104, },
448 { .n = "udphsb_clk", .p = "mck1", .id = 105, },
449 { .n = "uhphs_clk", .p = "mck1", .id = 106, },
450 };
451
452 /**
453 * Generic clock description
454 * @n: clock name
455 * @pp: PLL parents
456 * @pp_mux_table: PLL parents mux table
457 * @r: clock output range
458 * @pp_chg_id: id in parrent array of changeable PLL parent
459 * @pp_count: PLL parents count
460 * @id: clock id
461 */
462 static const struct {
463 const char *n;
464 const char *pp[8];
465 const char pp_mux_table[8];
466 struct clk_range r;
467 int pp_chg_id;
468 u8 pp_count;
469 u8 id;
470 } sama7g5_gck[] = {
471 { .n = "adc_gclk",
472 .id = 26,
473 .r = { .max = 100000000, },
474 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "audiopll_divpmcck", },
475 .pp_mux_table = { 5, 7, 9, },
476 .pp_count = 3,
477 .pp_chg_id = INT_MIN, },
478
479 { .n = "asrc_gclk",
480 .id = 30,
481 .r = { .max = 200000000 },
482 .pp = { "audiopll_divpmcck", },
483 .pp_mux_table = { 9, },
484 .pp_count = 1,
485 .pp_chg_id = 3, },
486
487 { .n = "csi_gclk",
488 .id = 33,
489 .r = { .max = 27000000 },
490 .pp = { "ddrpll_divpmcck", "imgpll_divpmcck", },
491 .pp_mux_table = { 6, 7, },
492 .pp_count = 2,
493 .pp_chg_id = INT_MIN, },
494
495 { .n = "flex0_gclk",
496 .id = 38,
497 .r = { .max = 200000000 },
498 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
499 .pp_mux_table = { 5, 8, },
500 .pp_count = 2,
501 .pp_chg_id = INT_MIN, },
502
503 { .n = "flex1_gclk",
504 .id = 39,
505 .r = { .max = 200000000 },
506 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
507 .pp_mux_table = { 5, 8, },
508 .pp_count = 2,
509 .pp_chg_id = INT_MIN, },
510
511 { .n = "flex2_gclk",
512 .id = 40,
513 .r = { .max = 200000000 },
514 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
515 .pp_mux_table = { 5, 8, },
516 .pp_count = 2,
517 .pp_chg_id = INT_MIN, },
518
519 { .n = "flex3_gclk",
520 .id = 41,
521 .r = { .max = 200000000 },
522 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
523 .pp_mux_table = { 5, 8, },
524 .pp_count = 2,
525 .pp_chg_id = INT_MIN, },
526
527 { .n = "flex4_gclk",
528 .id = 42,
529 .r = { .max = 200000000 },
530 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
531 .pp_mux_table = { 5, 8, },
532 .pp_count = 2,
533 .pp_chg_id = INT_MIN, },
534
535 { .n = "flex5_gclk",
536 .id = 43,
537 .r = { .max = 200000000 },
538 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
539 .pp_mux_table = { 5, 8, },
540 .pp_count = 2,
541 .pp_chg_id = INT_MIN, },
542
543 { .n = "flex6_gclk",
544 .id = 44,
545 .r = { .max = 200000000 },
546 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
547 .pp_mux_table = { 5, 8, },
548 .pp_count = 2,
549 .pp_chg_id = INT_MIN, },
550
551 { .n = "flex7_gclk",
552 .id = 45,
553 .r = { .max = 200000000 },
554 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
555 .pp_mux_table = { 5, 8, },
556 .pp_count = 2,
557 .pp_chg_id = INT_MIN, },
558
559 { .n = "flex8_gclk",
560 .id = 46,
561 .r = { .max = 200000000 },
562 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
563 .pp_mux_table = { 5, 8, },
564 .pp_count = 2,
565 .pp_chg_id = INT_MIN, },
566
567 { .n = "flex9_gclk",
568 .id = 47,
569 .r = { .max = 200000000 },
570 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
571 .pp_mux_table = { 5, 8, },
572 .pp_count = 2,
573 .pp_chg_id = INT_MIN, },
574
575 { .n = "flex10_gclk",
576 .id = 48,
577 .r = { .max = 200000000 },
578 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
579 .pp_mux_table = { 5, 8, },
580 .pp_count = 2,
581 .pp_chg_id = INT_MIN, },
582
583 { .n = "flex11_gclk",
584 .id = 49,
585 .r = { .max = 200000000 },
586 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
587 .pp_mux_table = { 5, 8, },
588 .pp_count = 2,
589 .pp_chg_id = INT_MIN, },
590
591 { .n = "gmac0_gclk",
592 .id = 51,
593 .r = { .max = 125000000 },
594 .pp = { "ethpll_divpmcck", },
595 .pp_mux_table = { 10, },
596 .pp_count = 1,
597 .pp_chg_id = 3, },
598
599 { .n = "gmac1_gclk",
600 .id = 52,
601 .r = { .max = 50000000 },
602 .pp = { "ethpll_divpmcck", },
603 .pp_mux_table = { 10, },
604 .pp_count = 1,
605 .pp_chg_id = INT_MIN, },
606
607 { .n = "gmac0_tsu_gclk",
608 .id = 53,
609 .r = { .max = 300000000 },
610 .pp = { "audiopll_divpmcck", "ethpll_divpmcck", },
611 .pp_mux_table = { 9, 10, },
612 .pp_count = 2,
613 .pp_chg_id = INT_MIN, },
614
615 { .n = "gmac1_tsu_gclk",
616 .id = 54,
617 .r = { .max = 300000000 },
618 .pp = { "audiopll_divpmcck", "ethpll_divpmcck", },
619 .pp_mux_table = { 9, 10, },
620 .pp_count = 2,
621 .pp_chg_id = INT_MIN, },
622
623 { .n = "i2smcc0_gclk",
624 .id = 57,
625 .r = { .max = 100000000 },
626 .pp = { "syspll_divpmcck", "audiopll_divpmcck", },
627 .pp_mux_table = { 5, 9, },
628 .pp_count = 2,
629 .pp_chg_id = 4, },
630
631 { .n = "i2smcc1_gclk",
632 .id = 58,
633 .r = { .max = 100000000 },
634 .pp = { "syspll_divpmcck", "audiopll_divpmcck", },
635 .pp_mux_table = { 5, 9, },
636 .pp_count = 2,
637 .pp_chg_id = 4, },
638
639 { .n = "mcan0_gclk",
640 .id = 61,
641 .r = { .max = 200000000 },
642 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
643 .pp_mux_table = { 5, 8, },
644 .pp_count = 2,
645 .pp_chg_id = INT_MIN, },
646
647 { .n = "mcan1_gclk",
648 .id = 62,
649 .r = { .max = 200000000 },
650 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
651 .pp_mux_table = { 5, 8, },
652 .pp_count = 2,
653 .pp_chg_id = INT_MIN, },
654
655 { .n = "mcan2_gclk",
656 .id = 63,
657 .r = { .max = 200000000 },
658 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
659 .pp_mux_table = { 5, 8, },
660 .pp_count = 2,
661 .pp_chg_id = INT_MIN, },
662
663 { .n = "mcan3_gclk",
664 .id = 64,
665 .r = { .max = 200000000 },
666 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
667 .pp_mux_table = { 5, 8, },
668 .pp_count = 2,
669 .pp_chg_id = INT_MIN, },
670
671 { .n = "mcan4_gclk",
672 .id = 65,
673 .r = { .max = 200000000 },
674 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
675 .pp_mux_table = { 5, 8, },
676 .pp_count = 2,
677 .pp_chg_id = INT_MIN, },
678
679 { .n = "mcan5_gclk",
680 .id = 66,
681 .r = { .max = 200000000 },
682 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
683 .pp_mux_table = { 5, 8, },
684 .pp_count = 2,
685 .pp_chg_id = INT_MIN, },
686
687 { .n = "pdmc0_gclk",
688 .id = 68,
689 .r = { .max = 50000000 },
690 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
691 .pp_mux_table = { 5, 8, },
692 .pp_count = 2,
693 .pp_chg_id = INT_MIN, },
694
695 { .n = "pdmc1_gclk",
696 .id = 69,
697 .r = { .max = 50000000, },
698 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
699 .pp_mux_table = { 5, 8, },
700 .pp_count = 2,
701 .pp_chg_id = INT_MIN, },
702
703 { .n = "pit64b0_gclk",
704 .id = 70,
705 .r = { .max = 200000000 },
706 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
707 "audiopll_divpmcck", "ethpll_divpmcck", },
708 .pp_mux_table = { 5, 7, 8, 9, 10, },
709 .pp_count = 5,
710 .pp_chg_id = INT_MIN, },
711
712 { .n = "pit64b1_gclk",
713 .id = 71,
714 .r = { .max = 200000000 },
715 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
716 "audiopll_divpmcck", "ethpll_divpmcck", },
717 .pp_mux_table = { 5, 7, 8, 9, 10, },
718 .pp_count = 5,
719 .pp_chg_id = INT_MIN, },
720
721 { .n = "pit64b2_gclk",
722 .id = 72,
723 .r = { .max = 200000000 },
724 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
725 "audiopll_divpmcck", "ethpll_divpmcck", },
726 .pp_mux_table = { 5, 7, 8, 9, 10, },
727 .pp_count = 5,
728 .pp_chg_id = INT_MIN, },
729
730 { .n = "pit64b3_gclk",
731 .id = 73,
732 .r = { .max = 200000000 },
733 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
734 "audiopll_divpmcck", "ethpll_divpmcck", },
735 .pp_mux_table = { 5, 7, 8, 9, 10, },
736 .pp_count = 5,
737 .pp_chg_id = INT_MIN, },
738
739 { .n = "pit64b4_gclk",
740 .id = 74,
741 .r = { .max = 200000000 },
742 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
743 "audiopll_divpmcck", "ethpll_divpmcck", },
744 .pp_mux_table = { 5, 7, 8, 9, 10, },
745 .pp_count = 5,
746 .pp_chg_id = INT_MIN, },
747
748 { .n = "pit64b5_gclk",
749 .id = 75,
750 .r = { .max = 200000000 },
751 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
752 "audiopll_divpmcck", "ethpll_divpmcck", },
753 .pp_mux_table = { 5, 7, 8, 9, 10, },
754 .pp_count = 5,
755 .pp_chg_id = INT_MIN, },
756
757 { .n = "qspi0_gclk",
758 .id = 78,
759 .r = { .max = 200000000 },
760 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
761 .pp_mux_table = { 5, 8, },
762 .pp_count = 2,
763 .pp_chg_id = INT_MIN, },
764
765 { .n = "qspi1_gclk",
766 .id = 79,
767 .r = { .max = 200000000 },
768 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
769 .pp_mux_table = { 5, 8, },
770 .pp_count = 2,
771 .pp_chg_id = INT_MIN, },
772
773 { .n = "sdmmc0_gclk",
774 .id = 80,
775 .r = { .max = 208000000 },
776 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
777 .pp_mux_table = { 5, 8, },
778 .pp_count = 2,
779 .pp_chg_id = 4, },
780
781 { .n = "sdmmc1_gclk",
782 .id = 81,
783 .r = { .max = 208000000 },
784 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
785 .pp_mux_table = { 5, 8, },
786 .pp_count = 2,
787 .pp_chg_id = 4, },
788
789 { .n = "sdmmc2_gclk",
790 .id = 82,
791 .r = { .max = 208000000 },
792 .pp = { "syspll_divpmcck", "baudpll_divpmcck", },
793 .pp_mux_table = { 5, 8, },
794 .pp_count = 2,
795 .pp_chg_id = 4, },
796
797 { .n = "spdifrx_gclk",
798 .id = 84,
799 .r = { .max = 150000000 },
800 .pp = { "syspll_divpmcck", "audiopll_divpmcck", },
801 .pp_mux_table = { 5, 9, },
802 .pp_count = 2,
803 .pp_chg_id = 4, },
804
805 { .n = "spdiftx_gclk",
806 .id = 85,
807 .r = { .max = 25000000 },
808 .pp = { "syspll_divpmcck", "audiopll_divpmcck", },
809 .pp_mux_table = { 5, 9, },
810 .pp_count = 2,
811 .pp_chg_id = 4, },
812
813 { .n = "tcb0_ch0_gclk",
814 .id = 88,
815 .r = { .max = 200000000 },
816 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
817 "audiopll_divpmcck", "ethpll_divpmcck", },
818 .pp_mux_table = { 5, 7, 8, 9, 10, },
819 .pp_count = 5,
820 .pp_chg_id = INT_MIN, },
821
822 { .n = "tcb1_ch0_gclk",
823 .id = 91,
824 .r = { .max = 200000000 },
825 .pp = { "syspll_divpmcck", "imgpll_divpmcck", "baudpll_divpmcck",
826 "audiopll_divpmcck", "ethpll_divpmcck", },
827 .pp_mux_table = { 5, 7, 8, 9, 10, },
828 .pp_count = 5,
829 .pp_chg_id = INT_MIN, },
830
831 { .n = "tcpca_gclk",
832 .id = 94,
833 .r = { .max = 32768, },
834 .pp_chg_id = INT_MIN, },
835
836 { .n = "tcpcb_gclk",
837 .id = 95,
838 .r = { .max = 32768, },
839 .pp_chg_id = INT_MIN, },
840 };
841
842 /* MCK0 characteristics. */
843 static const struct clk_master_characteristics mck0_characteristics = {
844 .output = { .min = 50000000, .max = 200000000 },
845 .divisors = { 1, 2, 4, 3, 5 },
846 .have_div3_pres = 1,
847 };
848
849 /* MCK0 layout. */
850 static const struct clk_master_layout mck0_layout = {
851 .mask = 0x773,
852 .pres_shift = 4,
853 .offset = 0x28,
854 };
855
856 /* Programmable clock layout. */
857 static const struct clk_programmable_layout programmable_layout = {
858 .pres_mask = 0xff,
859 .pres_shift = 8,
860 .css_mask = 0x1f,
861 .have_slck_mck = 0,
862 .is_pres_direct = 1,
863 };
864
865 /* Peripheral clock layout. */
866 static const struct clk_pcr_layout sama7g5_pcr_layout = {
867 .offset = 0x88,
868 .cmd = BIT(31),
869 .gckcss_mask = GENMASK(12, 8),
870 .pid_mask = GENMASK(6, 0),
871 };
872
873 static void __init sama7g5_pmc_setup(struct device_node *np)
874 {
875 const char *td_slck_name, *md_slck_name, *mainxtal_name;
876 struct pmc_data *sama7g5_pmc;
877 const char *parent_names[10];
878 void **alloc_mem = NULL;
879 int alloc_mem_size = 0;
880 struct regmap *regmap;
881 struct clk_hw *hw;
882 bool bypass;
883 int i, j;
884
885 i = of_property_match_string(np, "clock-names", "td_slck");
886 if (i < 0)
887 return;
888
889 td_slck_name = of_clk_get_parent_name(np, i);
890
891 i = of_property_match_string(np, "clock-names", "md_slck");
892 if (i < 0)
893 return;
894
895 md_slck_name = of_clk_get_parent_name(np, i);
896
897 i = of_property_match_string(np, "clock-names", "main_xtal");
898 if (i < 0)
899 return;
900
901 mainxtal_name = of_clk_get_parent_name(np, i);
902
903 regmap = device_node_to_regmap(np);
904 if (IS_ERR(regmap))
905 return;
906
907 sama7g5_pmc = pmc_data_allocate(PMC_CPU + 1,
908 nck(sama7g5_systemck),
909 nck(sama7g5_periphck),
910 nck(sama7g5_gck), 8);
911 if (!sama7g5_pmc)
912 return;
913
914 alloc_mem = kmalloc(sizeof(void *) *
915 (ARRAY_SIZE(sama7g5_mckx) + ARRAY_SIZE(sama7g5_gck)),
916 GFP_KERNEL);
917 if (!alloc_mem)
918 goto err_free;
919
920 hw = at91_clk_register_main_rc_osc(regmap, "main_rc_osc", 12000000,
921 50000000);
922 if (IS_ERR(hw))
923 goto err_free;
924
925 bypass = of_property_read_bool(np, "atmel,osc-bypass");
926
927 hw = at91_clk_register_main_osc(regmap, "main_osc", mainxtal_name,
928 bypass);
929 if (IS_ERR(hw))
930 goto err_free;
931
932 parent_names[0] = "main_rc_osc";
933 parent_names[1] = "main_osc";
934 hw = at91_clk_register_sam9x5_main(regmap, "mainck", parent_names, 2);
935 if (IS_ERR(hw))
936 goto err_free;
937
938 sama7g5_pmc->chws[PMC_MAIN] = hw;
939
940 for (i = 0; i < PLL_ID_MAX; i++) {
941 for (j = 0; j < 3; j++) {
942 struct clk_hw *parent_hw;
943
944 if (!sama7g5_plls[i][j].n)
945 continue;
946
947 switch (sama7g5_plls[i][j].t) {
948 case PLL_TYPE_FRAC:
949 if (!strcmp(sama7g5_plls[i][j].p, "mainck"))
950 parent_hw = sama7g5_pmc->chws[PMC_MAIN];
951 else
952 parent_hw = __clk_get_hw(of_clk_get_by_name(np,
953 sama7g5_plls[i][j].p));
954
955 hw = sam9x60_clk_register_frac_pll(regmap,
956 &pmc_pll_lock, sama7g5_plls[i][j].n,
957 sama7g5_plls[i][j].p, parent_hw, i,
958 sama7g5_plls[i][j].c,
959 sama7g5_plls[i][j].l,
960 sama7g5_plls[i][j].f);
961 break;
962
963 case PLL_TYPE_DIV:
964 hw = sam9x60_clk_register_div_pll(regmap,
965 &pmc_pll_lock, sama7g5_plls[i][j].n,
966 sama7g5_plls[i][j].p, i,
967 sama7g5_plls[i][j].c,
968 sama7g5_plls[i][j].l,
969 sama7g5_plls[i][j].f);
970 break;
971
972 default:
973 continue;
974 }
975
976 if (IS_ERR(hw))
977 goto err_free;
978
979 if (sama7g5_plls[i][j].eid)
980 sama7g5_pmc->chws[sama7g5_plls[i][j].eid] = hw;
981 }
982 }
983
984 parent_names[0] = "cpupll_divpmcck";
985 hw = at91_clk_register_master_pres(regmap, "cpuck", 1, parent_names,
986 &mck0_layout, &mck0_characteristics,
987 &pmc_mck0_lock,
988 CLK_SET_RATE_PARENT, 0);
989 if (IS_ERR(hw))
990 goto err_free;
991
992 sama7g5_pmc->chws[PMC_CPU] = hw;
993
994 hw = at91_clk_register_master_div(regmap, "mck0", "cpuck",
995 &mck0_layout, &mck0_characteristics,
996 &pmc_mck0_lock, 0);
997 if (IS_ERR(hw))
998 goto err_free;
999
1000 sama7g5_pmc->chws[PMC_MCK] = hw;
1001
1002 parent_names[0] = md_slck_name;
1003 parent_names[1] = td_slck_name;
1004 parent_names[2] = "mainck";
1005 for (i = 0; i < ARRAY_SIZE(sama7g5_mckx); i++) {
1006 u8 num_parents = 3 + sama7g5_mckx[i].ep_count;
1007 u32 *mux_table;
1008
1009 mux_table = kmalloc_array(num_parents, sizeof(*mux_table),
1010 GFP_KERNEL);
1011 if (!mux_table)
1012 goto err_free;
1013
1014 SAMA7G5_INIT_TABLE(mux_table, 3);
1015 SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_mckx[i].ep_mux_table,
1016 sama7g5_mckx[i].ep_count);
1017 SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_mckx[i].ep,
1018 sama7g5_mckx[i].ep_count);
1019
1020 hw = at91_clk_sama7g5_register_master(regmap, sama7g5_mckx[i].n,
1021 num_parents, parent_names, mux_table,
1022 &pmc_mckX_lock, sama7g5_mckx[i].id,
1023 sama7g5_mckx[i].c,
1024 sama7g5_mckx[i].ep_chg_id);
1025 if (IS_ERR(hw))
1026 goto err_free;
1027
1028 alloc_mem[alloc_mem_size++] = mux_table;
1029 }
1030
1031 hw = at91_clk_sama7g5_register_utmi(regmap, "utmick", "main_xtal");
1032 if (IS_ERR(hw))
1033 goto err_free;
1034
1035 sama7g5_pmc->chws[PMC_UTMI] = hw;
1036
1037 parent_names[0] = md_slck_name;
1038 parent_names[1] = td_slck_name;
1039 parent_names[2] = "mainck";
1040 parent_names[3] = "syspll_divpmcck";
1041 parent_names[4] = "ddrpll_divpmcck";
1042 parent_names[5] = "imgpll_divpmcck";
1043 parent_names[6] = "baudpll_divpmcck";
1044 parent_names[7] = "audiopll_divpmcck";
1045 parent_names[8] = "ethpll_divpmcck";
1046 for (i = 0; i < 8; i++) {
1047 char name[6];
1048
1049 snprintf(name, sizeof(name), "prog%d", i);
1050
1051 hw = at91_clk_register_programmable(regmap, name, parent_names,
1052 9, i,
1053 &programmable_layout,
1054 sama7g5_prog_mux_table);
1055 if (IS_ERR(hw))
1056 goto err_free;
1057
1058 sama7g5_pmc->pchws[i] = hw;
1059 }
1060
1061 for (i = 0; i < ARRAY_SIZE(sama7g5_systemck); i++) {
1062 hw = at91_clk_register_system(regmap, sama7g5_systemck[i].n,
1063 sama7g5_systemck[i].p,
1064 sama7g5_systemck[i].id);
1065 if (IS_ERR(hw))
1066 goto err_free;
1067
1068 sama7g5_pmc->shws[sama7g5_systemck[i].id] = hw;
1069 }
1070
1071 for (i = 0; i < ARRAY_SIZE(sama7g5_periphck); i++) {
1072 hw = at91_clk_register_sam9x5_peripheral(regmap, &pmc_pcr_lock,
1073 &sama7g5_pcr_layout,
1074 sama7g5_periphck[i].n,
1075 sama7g5_periphck[i].p,
1076 sama7g5_periphck[i].id,
1077 &sama7g5_periphck[i].r,
1078 sama7g5_periphck[i].chgp ? 0 :
1079 INT_MIN);
1080 if (IS_ERR(hw))
1081 goto err_free;
1082
1083 sama7g5_pmc->phws[sama7g5_periphck[i].id] = hw;
1084 }
1085
1086 parent_names[0] = md_slck_name;
1087 parent_names[1] = td_slck_name;
1088 parent_names[2] = "mainck";
1089 for (i = 0; i < ARRAY_SIZE(sama7g5_gck); i++) {
1090 u8 num_parents = 3 + sama7g5_gck[i].pp_count;
1091 u32 *mux_table;
1092
1093 mux_table = kmalloc_array(num_parents, sizeof(*mux_table),
1094 GFP_KERNEL);
1095 if (!mux_table)
1096 goto err_free;
1097
1098 SAMA7G5_INIT_TABLE(mux_table, 3);
1099 SAMA7G5_FILL_TABLE(&mux_table[3], sama7g5_gck[i].pp_mux_table,
1100 sama7g5_gck[i].pp_count);
1101 SAMA7G5_FILL_TABLE(&parent_names[3], sama7g5_gck[i].pp,
1102 sama7g5_gck[i].pp_count);
1103
1104 hw = at91_clk_register_generated(regmap, &pmc_pcr_lock,
1105 &sama7g5_pcr_layout,
1106 sama7g5_gck[i].n,
1107 parent_names, mux_table,
1108 num_parents,
1109 sama7g5_gck[i].id,
1110 &sama7g5_gck[i].r,
1111 sama7g5_gck[i].pp_chg_id);
1112 if (IS_ERR(hw))
1113 goto err_free;
1114
1115 sama7g5_pmc->ghws[sama7g5_gck[i].id] = hw;
1116 alloc_mem[alloc_mem_size++] = mux_table;
1117 }
1118
1119 of_clk_add_hw_provider(np, of_clk_hw_pmc_get, sama7g5_pmc);
1120
1121 return;
1122
1123 err_free:
1124 if (alloc_mem) {
1125 for (i = 0; i < alloc_mem_size; i++)
1126 kfree(alloc_mem[i]);
1127 kfree(alloc_mem);
1128 }
1129
1130 kfree(sama7g5_pmc);
1131 }
1132
1133 /* Some clks are used for a clocksource */
1134 CLK_OF_DECLARE(sama7g5_pmc, "microchip,sama7g5-pmc", sama7g5_pmc_setup);
Linux with added FPC-III support