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28b9fcd0 | 1 | /* |
855f06a1 MB |
2 | * AmLogic S802 (Meson8) / S805 (Meson8b) / S812 (Meson8m2) Clock Controller |
3 | * Driver | |
a718ce38 | 4 | * |
28b9fcd0 CC |
5 | * Copyright (c) 2015 Endless Mobile, Inc. |
6 | * Author: Carlo Caione <carlo@endlessm.com> | |
7 | * | |
796b9aa8 MT |
8 | * Copyright (c) 2016 BayLibre, Inc. |
9 | * Michael Turquette <mturquette@baylibre.com> | |
10 | * | |
28b9fcd0 CC |
11 | * This program is free software; you can redistribute it and/or modify it |
12 | * under the terms and conditions of the GNU General Public License, | |
13 | * version 2, as published by the Free Software Foundation. | |
14 | * | |
15 | * This program is distributed in the hope it will be useful, but WITHOUT | |
16 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
17 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
18 | * more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License along with | |
21 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | */ | |
23 | ||
55d42c40 | 24 | #include <linux/clk.h> |
28b9fcd0 | 25 | #include <linux/clk-provider.h> |
28b9fcd0 | 26 | #include <linux/of_address.h> |
796b9aa8 | 27 | #include <linux/platform_device.h> |
18962172 MB |
28 | #include <linux/reset-controller.h> |
29 | #include <linux/slab.h> | |
a718ce38 | 30 | #include <linux/init.h> |
28b9fcd0 CC |
31 | |
32 | #include "clkc.h" | |
d0c175da | 33 | #include "meson8b.h" |
28b9fcd0 | 34 | |
c0daa3e6 MT |
35 | static DEFINE_SPINLOCK(clk_lock); |
36 | ||
18962172 MB |
37 | static void __iomem *clk_base; |
38 | ||
39 | struct meson8b_clk_reset { | |
40 | struct reset_controller_dev reset; | |
41 | void __iomem *base; | |
42 | }; | |
43 | ||
28b9fcd0 CC |
44 | static const struct pll_rate_table sys_pll_rate_table[] = { |
45 | PLL_RATE(312000000, 52, 1, 2), | |
46 | PLL_RATE(336000000, 56, 1, 2), | |
47 | PLL_RATE(360000000, 60, 1, 2), | |
48 | PLL_RATE(384000000, 64, 1, 2), | |
49 | PLL_RATE(408000000, 68, 1, 2), | |
50 | PLL_RATE(432000000, 72, 1, 2), | |
51 | PLL_RATE(456000000, 76, 1, 2), | |
52 | PLL_RATE(480000000, 80, 1, 2), | |
53 | PLL_RATE(504000000, 84, 1, 2), | |
54 | PLL_RATE(528000000, 88, 1, 2), | |
55 | PLL_RATE(552000000, 92, 1, 2), | |
56 | PLL_RATE(576000000, 96, 1, 2), | |
57 | PLL_RATE(600000000, 50, 1, 1), | |
58 | PLL_RATE(624000000, 52, 1, 1), | |
59 | PLL_RATE(648000000, 54, 1, 1), | |
60 | PLL_RATE(672000000, 56, 1, 1), | |
61 | PLL_RATE(696000000, 58, 1, 1), | |
62 | PLL_RATE(720000000, 60, 1, 1), | |
63 | PLL_RATE(744000000, 62, 1, 1), | |
64 | PLL_RATE(768000000, 64, 1, 1), | |
65 | PLL_RATE(792000000, 66, 1, 1), | |
66 | PLL_RATE(816000000, 68, 1, 1), | |
67 | PLL_RATE(840000000, 70, 1, 1), | |
68 | PLL_RATE(864000000, 72, 1, 1), | |
69 | PLL_RATE(888000000, 74, 1, 1), | |
70 | PLL_RATE(912000000, 76, 1, 1), | |
71 | PLL_RATE(936000000, 78, 1, 1), | |
72 | PLL_RATE(960000000, 80, 1, 1), | |
73 | PLL_RATE(984000000, 82, 1, 1), | |
74 | PLL_RATE(1008000000, 84, 1, 1), | |
75 | PLL_RATE(1032000000, 86, 1, 1), | |
76 | PLL_RATE(1056000000, 88, 1, 1), | |
77 | PLL_RATE(1080000000, 90, 1, 1), | |
78 | PLL_RATE(1104000000, 92, 1, 1), | |
79 | PLL_RATE(1128000000, 94, 1, 1), | |
80 | PLL_RATE(1152000000, 96, 1, 1), | |
81 | PLL_RATE(1176000000, 98, 1, 1), | |
82 | PLL_RATE(1200000000, 50, 1, 0), | |
83 | PLL_RATE(1224000000, 51, 1, 0), | |
84 | PLL_RATE(1248000000, 52, 1, 0), | |
85 | PLL_RATE(1272000000, 53, 1, 0), | |
86 | PLL_RATE(1296000000, 54, 1, 0), | |
87 | PLL_RATE(1320000000, 55, 1, 0), | |
88 | PLL_RATE(1344000000, 56, 1, 0), | |
89 | PLL_RATE(1368000000, 57, 1, 0), | |
90 | PLL_RATE(1392000000, 58, 1, 0), | |
91 | PLL_RATE(1416000000, 59, 1, 0), | |
92 | PLL_RATE(1440000000, 60, 1, 0), | |
93 | PLL_RATE(1464000000, 61, 1, 0), | |
94 | PLL_RATE(1488000000, 62, 1, 0), | |
95 | PLL_RATE(1512000000, 63, 1, 0), | |
96 | PLL_RATE(1536000000, 64, 1, 0), | |
97 | { /* sentinel */ }, | |
98 | }; | |
99 | ||
100 | static const struct clk_div_table cpu_div_table[] = { | |
101 | { .val = 1, .div = 1 }, | |
102 | { .val = 2, .div = 2 }, | |
103 | { .val = 3, .div = 3 }, | |
104 | { .val = 2, .div = 4 }, | |
105 | { .val = 3, .div = 6 }, | |
106 | { .val = 4, .div = 8 }, | |
107 | { .val = 5, .div = 10 }, | |
108 | { .val = 6, .div = 12 }, | |
109 | { .val = 7, .div = 14 }, | |
110 | { .val = 8, .div = 16 }, | |
111 | { /* sentinel */ }, | |
112 | }; | |
113 | ||
e92f7cca MT |
114 | static struct clk_fixed_rate meson8b_xtal = { |
115 | .fixed_rate = 24000000, | |
116 | .hw.init = &(struct clk_init_data){ | |
117 | .name = "xtal", | |
118 | .num_parents = 0, | |
119 | .ops = &clk_fixed_rate_ops, | |
120 | }, | |
121 | }; | |
122 | ||
ec623f2a MT |
123 | static struct meson_clk_pll meson8b_fixed_pll = { |
124 | .m = { | |
e0818a39 | 125 | .reg_off = HHI_MPLL_CNTL, |
ec623f2a MT |
126 | .shift = 0, |
127 | .width = 9, | |
128 | }, | |
129 | .n = { | |
e0818a39 | 130 | .reg_off = HHI_MPLL_CNTL, |
ec623f2a MT |
131 | .shift = 9, |
132 | .width = 5, | |
133 | }, | |
134 | .od = { | |
e0818a39 | 135 | .reg_off = HHI_MPLL_CNTL, |
ec623f2a MT |
136 | .shift = 16, |
137 | .width = 2, | |
138 | }, | |
139 | .lock = &clk_lock, | |
140 | .hw.init = &(struct clk_init_data){ | |
141 | .name = "fixed_pll", | |
142 | .ops = &meson_clk_pll_ro_ops, | |
143 | .parent_names = (const char *[]){ "xtal" }, | |
144 | .num_parents = 1, | |
145 | .flags = CLK_GET_RATE_NOCACHE, | |
146 | }, | |
147 | }; | |
148 | ||
149 | static struct meson_clk_pll meson8b_vid_pll = { | |
150 | .m = { | |
e0818a39 | 151 | .reg_off = HHI_VID_PLL_CNTL, |
ec623f2a MT |
152 | .shift = 0, |
153 | .width = 9, | |
154 | }, | |
155 | .n = { | |
e0818a39 | 156 | .reg_off = HHI_VID_PLL_CNTL, |
ec623f2a MT |
157 | .shift = 9, |
158 | .width = 5, | |
159 | }, | |
160 | .od = { | |
e0818a39 | 161 | .reg_off = HHI_VID_PLL_CNTL, |
ec623f2a MT |
162 | .shift = 16, |
163 | .width = 2, | |
164 | }, | |
165 | .lock = &clk_lock, | |
166 | .hw.init = &(struct clk_init_data){ | |
167 | .name = "vid_pll", | |
168 | .ops = &meson_clk_pll_ro_ops, | |
169 | .parent_names = (const char *[]){ "xtal" }, | |
170 | .num_parents = 1, | |
171 | .flags = CLK_GET_RATE_NOCACHE, | |
172 | }, | |
173 | }; | |
174 | ||
175 | static struct meson_clk_pll meson8b_sys_pll = { | |
176 | .m = { | |
e0818a39 | 177 | .reg_off = HHI_SYS_PLL_CNTL, |
ec623f2a MT |
178 | .shift = 0, |
179 | .width = 9, | |
180 | }, | |
181 | .n = { | |
e0818a39 | 182 | .reg_off = HHI_SYS_PLL_CNTL, |
ec623f2a MT |
183 | .shift = 9, |
184 | .width = 5, | |
185 | }, | |
186 | .od = { | |
e0818a39 | 187 | .reg_off = HHI_SYS_PLL_CNTL, |
ec623f2a MT |
188 | .shift = 16, |
189 | .width = 2, | |
190 | }, | |
191 | .rate_table = sys_pll_rate_table, | |
192 | .rate_count = ARRAY_SIZE(sys_pll_rate_table), | |
193 | .lock = &clk_lock, | |
194 | .hw.init = &(struct clk_init_data){ | |
195 | .name = "sys_pll", | |
196 | .ops = &meson_clk_pll_ops, | |
197 | .parent_names = (const char *[]){ "xtal" }, | |
198 | .num_parents = 1, | |
199 | .flags = CLK_GET_RATE_NOCACHE, | |
200 | }, | |
201 | }; | |
202 | ||
6282a2da MT |
203 | static struct clk_fixed_factor meson8b_fclk_div2 = { |
204 | .mult = 1, | |
205 | .div = 2, | |
206 | .hw.init = &(struct clk_init_data){ | |
207 | .name = "fclk_div2", | |
208 | .ops = &clk_fixed_factor_ops, | |
209 | .parent_names = (const char *[]){ "fixed_pll" }, | |
210 | .num_parents = 1, | |
211 | }, | |
212 | }; | |
213 | ||
214 | static struct clk_fixed_factor meson8b_fclk_div3 = { | |
215 | .mult = 1, | |
216 | .div = 3, | |
217 | .hw.init = &(struct clk_init_data){ | |
218 | .name = "fclk_div3", | |
219 | .ops = &clk_fixed_factor_ops, | |
220 | .parent_names = (const char *[]){ "fixed_pll" }, | |
221 | .num_parents = 1, | |
222 | }, | |
223 | }; | |
224 | ||
225 | static struct clk_fixed_factor meson8b_fclk_div4 = { | |
226 | .mult = 1, | |
227 | .div = 4, | |
228 | .hw.init = &(struct clk_init_data){ | |
229 | .name = "fclk_div4", | |
230 | .ops = &clk_fixed_factor_ops, | |
231 | .parent_names = (const char *[]){ "fixed_pll" }, | |
232 | .num_parents = 1, | |
233 | }, | |
234 | }; | |
235 | ||
236 | static struct clk_fixed_factor meson8b_fclk_div5 = { | |
237 | .mult = 1, | |
238 | .div = 5, | |
239 | .hw.init = &(struct clk_init_data){ | |
240 | .name = "fclk_div5", | |
241 | .ops = &clk_fixed_factor_ops, | |
242 | .parent_names = (const char *[]){ "fixed_pll" }, | |
243 | .num_parents = 1, | |
244 | }, | |
245 | }; | |
246 | ||
247 | static struct clk_fixed_factor meson8b_fclk_div7 = { | |
248 | .mult = 1, | |
249 | .div = 7, | |
250 | .hw.init = &(struct clk_init_data){ | |
251 | .name = "fclk_div7", | |
252 | .ops = &clk_fixed_factor_ops, | |
253 | .parent_names = (const char *[]){ "fixed_pll" }, | |
254 | .num_parents = 1, | |
255 | }, | |
256 | }; | |
257 | ||
b778f745 JB |
258 | static struct meson_clk_mpll meson8b_mpll0 = { |
259 | .sdm = { | |
260 | .reg_off = HHI_MPLL_CNTL7, | |
261 | .shift = 0, | |
262 | .width = 14, | |
263 | }, | |
264 | .sdm_en = { | |
265 | .reg_off = HHI_MPLL_CNTL7, | |
266 | .shift = 15, | |
267 | .width = 1, | |
268 | }, | |
269 | .n2 = { | |
270 | .reg_off = HHI_MPLL_CNTL7, | |
271 | .shift = 16, | |
272 | .width = 9, | |
273 | }, | |
274 | .en = { | |
275 | .reg_off = HHI_MPLL_CNTL7, | |
276 | .shift = 14, | |
277 | .width = 1, | |
278 | }, | |
1f737ffa JB |
279 | .ssen = { |
280 | .reg_off = HHI_MPLL_CNTL, | |
281 | .shift = 25, | |
282 | .width = 1, | |
283 | }, | |
b778f745 JB |
284 | .lock = &clk_lock, |
285 | .hw.init = &(struct clk_init_data){ | |
286 | .name = "mpll0", | |
287 | .ops = &meson_clk_mpll_ops, | |
288 | .parent_names = (const char *[]){ "fixed_pll" }, | |
289 | .num_parents = 1, | |
290 | }, | |
291 | }; | |
292 | ||
293 | static struct meson_clk_mpll meson8b_mpll1 = { | |
294 | .sdm = { | |
295 | .reg_off = HHI_MPLL_CNTL8, | |
296 | .shift = 0, | |
297 | .width = 14, | |
298 | }, | |
299 | .sdm_en = { | |
300 | .reg_off = HHI_MPLL_CNTL8, | |
301 | .shift = 15, | |
302 | .width = 1, | |
303 | }, | |
304 | .n2 = { | |
305 | .reg_off = HHI_MPLL_CNTL8, | |
306 | .shift = 16, | |
307 | .width = 9, | |
308 | }, | |
309 | .en = { | |
310 | .reg_off = HHI_MPLL_CNTL8, | |
311 | .shift = 14, | |
312 | .width = 1, | |
313 | }, | |
314 | .lock = &clk_lock, | |
315 | .hw.init = &(struct clk_init_data){ | |
316 | .name = "mpll1", | |
317 | .ops = &meson_clk_mpll_ops, | |
318 | .parent_names = (const char *[]){ "fixed_pll" }, | |
319 | .num_parents = 1, | |
320 | }, | |
321 | }; | |
322 | ||
323 | static struct meson_clk_mpll meson8b_mpll2 = { | |
324 | .sdm = { | |
325 | .reg_off = HHI_MPLL_CNTL9, | |
326 | .shift = 0, | |
327 | .width = 14, | |
328 | }, | |
329 | .sdm_en = { | |
330 | .reg_off = HHI_MPLL_CNTL9, | |
331 | .shift = 15, | |
332 | .width = 1, | |
333 | }, | |
334 | .n2 = { | |
335 | .reg_off = HHI_MPLL_CNTL9, | |
336 | .shift = 16, | |
337 | .width = 9, | |
338 | }, | |
339 | .en = { | |
340 | .reg_off = HHI_MPLL_CNTL9, | |
341 | .shift = 14, | |
342 | .width = 1, | |
343 | }, | |
344 | .lock = &clk_lock, | |
345 | .hw.init = &(struct clk_init_data){ | |
346 | .name = "mpll2", | |
347 | .ops = &meson_clk_mpll_ops, | |
348 | .parent_names = (const char *[]){ "fixed_pll" }, | |
349 | .num_parents = 1, | |
350 | }, | |
351 | }; | |
352 | ||
c0daa3e6 MT |
353 | /* |
354 | * FIXME cpu clocks and the legacy composite clocks (e.g. clk81) are both PLL | |
355 | * post-dividers and should be modeled with their respective PLLs via the | |
356 | * forthcoming coordinated clock rates feature | |
357 | */ | |
55d42c40 | 358 | static struct meson_clk_cpu meson8b_cpu_clk = { |
e0818a39 | 359 | .reg_off = HHI_SYS_CPU_CLK_CNTL1, |
55d42c40 MT |
360 | .div_table = cpu_div_table, |
361 | .clk_nb.notifier_call = meson_clk_cpu_notifier_cb, | |
362 | .hw.init = &(struct clk_init_data){ | |
363 | .name = "cpu_clk", | |
364 | .ops = &meson_clk_cpu_ops, | |
365 | .parent_names = (const char *[]){ "sys_pll" }, | |
366 | .num_parents = 1, | |
367 | }, | |
368 | }; | |
369 | ||
c0daa3e6 MT |
370 | static u32 mux_table_clk81[] = { 6, 5, 7 }; |
371 | ||
372 | struct clk_mux meson8b_mpeg_clk_sel = { | |
e0818a39 | 373 | .reg = (void *)HHI_MPEG_CLK_CNTL, |
c0daa3e6 MT |
374 | .mask = 0x7, |
375 | .shift = 12, | |
376 | .flags = CLK_MUX_READ_ONLY, | |
377 | .table = mux_table_clk81, | |
378 | .lock = &clk_lock, | |
379 | .hw.init = &(struct clk_init_data){ | |
380 | .name = "mpeg_clk_sel", | |
381 | .ops = &clk_mux_ro_ops, | |
382 | /* | |
383 | * FIXME bits 14:12 selects from 8 possible parents: | |
384 | * xtal, 1'b0 (wtf), fclk_div7, mpll_clkout1, mpll_clkout2, | |
385 | * fclk_div4, fclk_div3, fclk_div5 | |
386 | */ | |
387 | .parent_names = (const char *[]){ "fclk_div3", "fclk_div4", | |
388 | "fclk_div5" }, | |
389 | .num_parents = 3, | |
390 | .flags = (CLK_SET_RATE_NO_REPARENT | CLK_IGNORE_UNUSED), | |
391 | }, | |
392 | }; | |
393 | ||
394 | struct clk_divider meson8b_mpeg_clk_div = { | |
e0818a39 | 395 | .reg = (void *)HHI_MPEG_CLK_CNTL, |
c0daa3e6 MT |
396 | .shift = 0, |
397 | .width = 7, | |
398 | .lock = &clk_lock, | |
399 | .hw.init = &(struct clk_init_data){ | |
400 | .name = "mpeg_clk_div", | |
401 | .ops = &clk_divider_ops, | |
402 | .parent_names = (const char *[]){ "mpeg_clk_sel" }, | |
403 | .num_parents = 1, | |
404 | .flags = (CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED), | |
405 | }, | |
406 | }; | |
407 | ||
408 | struct clk_gate meson8b_clk81 = { | |
e0818a39 | 409 | .reg = (void *)HHI_MPEG_CLK_CNTL, |
c0daa3e6 MT |
410 | .bit_idx = 7, |
411 | .lock = &clk_lock, | |
412 | .hw.init = &(struct clk_init_data){ | |
413 | .name = "clk81", | |
414 | .ops = &clk_gate_ops, | |
415 | .parent_names = (const char *[]){ "mpeg_clk_div" }, | |
416 | .num_parents = 1, | |
be58e496 | 417 | .flags = (CLK_SET_RATE_PARENT | CLK_IS_CRITICAL), |
c0daa3e6 | 418 | }, |
28b9fcd0 CC |
419 | }; |
420 | ||
e31a1900 AM |
421 | /* Everything Else (EE) domain gates */ |
422 | ||
423 | static MESON_GATE(meson8b_ddr, HHI_GCLK_MPEG0, 0); | |
424 | static MESON_GATE(meson8b_dos, HHI_GCLK_MPEG0, 1); | |
425 | static MESON_GATE(meson8b_isa, HHI_GCLK_MPEG0, 5); | |
426 | static MESON_GATE(meson8b_pl301, HHI_GCLK_MPEG0, 6); | |
427 | static MESON_GATE(meson8b_periphs, HHI_GCLK_MPEG0, 7); | |
428 | static MESON_GATE(meson8b_spicc, HHI_GCLK_MPEG0, 8); | |
429 | static MESON_GATE(meson8b_i2c, HHI_GCLK_MPEG0, 9); | |
430 | static MESON_GATE(meson8b_sar_adc, HHI_GCLK_MPEG0, 10); | |
431 | static MESON_GATE(meson8b_smart_card, HHI_GCLK_MPEG0, 11); | |
432 | static MESON_GATE(meson8b_rng0, HHI_GCLK_MPEG0, 12); | |
433 | static MESON_GATE(meson8b_uart0, HHI_GCLK_MPEG0, 13); | |
434 | static MESON_GATE(meson8b_sdhc, HHI_GCLK_MPEG0, 14); | |
435 | static MESON_GATE(meson8b_stream, HHI_GCLK_MPEG0, 15); | |
436 | static MESON_GATE(meson8b_async_fifo, HHI_GCLK_MPEG0, 16); | |
437 | static MESON_GATE(meson8b_sdio, HHI_GCLK_MPEG0, 17); | |
438 | static MESON_GATE(meson8b_abuf, HHI_GCLK_MPEG0, 18); | |
439 | static MESON_GATE(meson8b_hiu_iface, HHI_GCLK_MPEG0, 19); | |
440 | static MESON_GATE(meson8b_assist_misc, HHI_GCLK_MPEG0, 23); | |
441 | static MESON_GATE(meson8b_spi, HHI_GCLK_MPEG0, 30); | |
442 | ||
443 | static MESON_GATE(meson8b_i2s_spdif, HHI_GCLK_MPEG1, 2); | |
444 | static MESON_GATE(meson8b_eth, HHI_GCLK_MPEG1, 3); | |
445 | static MESON_GATE(meson8b_demux, HHI_GCLK_MPEG1, 4); | |
446 | static MESON_GATE(meson8b_aiu_glue, HHI_GCLK_MPEG1, 6); | |
447 | static MESON_GATE(meson8b_iec958, HHI_GCLK_MPEG1, 7); | |
448 | static MESON_GATE(meson8b_i2s_out, HHI_GCLK_MPEG1, 8); | |
449 | static MESON_GATE(meson8b_amclk, HHI_GCLK_MPEG1, 9); | |
450 | static MESON_GATE(meson8b_aififo2, HHI_GCLK_MPEG1, 10); | |
451 | static MESON_GATE(meson8b_mixer, HHI_GCLK_MPEG1, 11); | |
452 | static MESON_GATE(meson8b_mixer_iface, HHI_GCLK_MPEG1, 12); | |
453 | static MESON_GATE(meson8b_adc, HHI_GCLK_MPEG1, 13); | |
454 | static MESON_GATE(meson8b_blkmv, HHI_GCLK_MPEG1, 14); | |
455 | static MESON_GATE(meson8b_aiu, HHI_GCLK_MPEG1, 15); | |
456 | static MESON_GATE(meson8b_uart1, HHI_GCLK_MPEG1, 16); | |
457 | static MESON_GATE(meson8b_g2d, HHI_GCLK_MPEG1, 20); | |
458 | static MESON_GATE(meson8b_usb0, HHI_GCLK_MPEG1, 21); | |
459 | static MESON_GATE(meson8b_usb1, HHI_GCLK_MPEG1, 22); | |
460 | static MESON_GATE(meson8b_reset, HHI_GCLK_MPEG1, 23); | |
461 | static MESON_GATE(meson8b_nand, HHI_GCLK_MPEG1, 24); | |
462 | static MESON_GATE(meson8b_dos_parser, HHI_GCLK_MPEG1, 25); | |
463 | static MESON_GATE(meson8b_usb, HHI_GCLK_MPEG1, 26); | |
464 | static MESON_GATE(meson8b_vdin1, HHI_GCLK_MPEG1, 28); | |
465 | static MESON_GATE(meson8b_ahb_arb0, HHI_GCLK_MPEG1, 29); | |
466 | static MESON_GATE(meson8b_efuse, HHI_GCLK_MPEG1, 30); | |
467 | static MESON_GATE(meson8b_boot_rom, HHI_GCLK_MPEG1, 31); | |
468 | ||
469 | static MESON_GATE(meson8b_ahb_data_bus, HHI_GCLK_MPEG2, 1); | |
470 | static MESON_GATE(meson8b_ahb_ctrl_bus, HHI_GCLK_MPEG2, 2); | |
471 | static MESON_GATE(meson8b_hdmi_intr_sync, HHI_GCLK_MPEG2, 3); | |
472 | static MESON_GATE(meson8b_hdmi_pclk, HHI_GCLK_MPEG2, 4); | |
473 | static MESON_GATE(meson8b_usb1_ddr_bridge, HHI_GCLK_MPEG2, 8); | |
474 | static MESON_GATE(meson8b_usb0_ddr_bridge, HHI_GCLK_MPEG2, 9); | |
475 | static MESON_GATE(meson8b_mmc_pclk, HHI_GCLK_MPEG2, 11); | |
476 | static MESON_GATE(meson8b_dvin, HHI_GCLK_MPEG2, 12); | |
477 | static MESON_GATE(meson8b_uart2, HHI_GCLK_MPEG2, 15); | |
478 | static MESON_GATE(meson8b_sana, HHI_GCLK_MPEG2, 22); | |
479 | static MESON_GATE(meson8b_vpu_intr, HHI_GCLK_MPEG2, 25); | |
480 | static MESON_GATE(meson8b_sec_ahb_ahb3_bridge, HHI_GCLK_MPEG2, 26); | |
481 | static MESON_GATE(meson8b_clk81_a9, HHI_GCLK_MPEG2, 29); | |
482 | ||
483 | static MESON_GATE(meson8b_vclk2_venci0, HHI_GCLK_OTHER, 1); | |
484 | static MESON_GATE(meson8b_vclk2_venci1, HHI_GCLK_OTHER, 2); | |
485 | static MESON_GATE(meson8b_vclk2_vencp0, HHI_GCLK_OTHER, 3); | |
486 | static MESON_GATE(meson8b_vclk2_vencp1, HHI_GCLK_OTHER, 4); | |
487 | static MESON_GATE(meson8b_gclk_venci_int, HHI_GCLK_OTHER, 8); | |
488 | static MESON_GATE(meson8b_gclk_vencp_int, HHI_GCLK_OTHER, 9); | |
489 | static MESON_GATE(meson8b_dac_clk, HHI_GCLK_OTHER, 10); | |
490 | static MESON_GATE(meson8b_aoclk_gate, HHI_GCLK_OTHER, 14); | |
491 | static MESON_GATE(meson8b_iec958_gate, HHI_GCLK_OTHER, 16); | |
492 | static MESON_GATE(meson8b_enc480p, HHI_GCLK_OTHER, 20); | |
493 | static MESON_GATE(meson8b_rng1, HHI_GCLK_OTHER, 21); | |
494 | static MESON_GATE(meson8b_gclk_vencl_int, HHI_GCLK_OTHER, 22); | |
495 | static MESON_GATE(meson8b_vclk2_venclmcc, HHI_GCLK_OTHER, 24); | |
496 | static MESON_GATE(meson8b_vclk2_vencl, HHI_GCLK_OTHER, 25); | |
497 | static MESON_GATE(meson8b_vclk2_other, HHI_GCLK_OTHER, 26); | |
498 | static MESON_GATE(meson8b_edp, HHI_GCLK_OTHER, 31); | |
499 | ||
500 | /* Always On (AO) domain gates */ | |
501 | ||
502 | static MESON_GATE(meson8b_ao_media_cpu, HHI_GCLK_AO, 0); | |
503 | static MESON_GATE(meson8b_ao_ahb_sram, HHI_GCLK_AO, 1); | |
504 | static MESON_GATE(meson8b_ao_ahb_bus, HHI_GCLK_AO, 2); | |
505 | static MESON_GATE(meson8b_ao_iface, HHI_GCLK_AO, 3); | |
506 | ||
e92f7cca MT |
507 | static struct clk_hw_onecell_data meson8b_hw_onecell_data = { |
508 | .hws = { | |
509 | [CLKID_XTAL] = &meson8b_xtal.hw, | |
ec623f2a MT |
510 | [CLKID_PLL_FIXED] = &meson8b_fixed_pll.hw, |
511 | [CLKID_PLL_VID] = &meson8b_vid_pll.hw, | |
512 | [CLKID_PLL_SYS] = &meson8b_sys_pll.hw, | |
6282a2da MT |
513 | [CLKID_FCLK_DIV2] = &meson8b_fclk_div2.hw, |
514 | [CLKID_FCLK_DIV3] = &meson8b_fclk_div3.hw, | |
515 | [CLKID_FCLK_DIV4] = &meson8b_fclk_div4.hw, | |
516 | [CLKID_FCLK_DIV5] = &meson8b_fclk_div5.hw, | |
517 | [CLKID_FCLK_DIV7] = &meson8b_fclk_div7.hw, | |
55d42c40 | 518 | [CLKID_CPUCLK] = &meson8b_cpu_clk.hw, |
c0daa3e6 MT |
519 | [CLKID_MPEG_SEL] = &meson8b_mpeg_clk_sel.hw, |
520 | [CLKID_MPEG_DIV] = &meson8b_mpeg_clk_div.hw, | |
521 | [CLKID_CLK81] = &meson8b_clk81.hw, | |
e31a1900 AM |
522 | [CLKID_DDR] = &meson8b_ddr.hw, |
523 | [CLKID_DOS] = &meson8b_dos.hw, | |
524 | [CLKID_ISA] = &meson8b_isa.hw, | |
525 | [CLKID_PL301] = &meson8b_pl301.hw, | |
526 | [CLKID_PERIPHS] = &meson8b_periphs.hw, | |
527 | [CLKID_SPICC] = &meson8b_spicc.hw, | |
528 | [CLKID_I2C] = &meson8b_i2c.hw, | |
529 | [CLKID_SAR_ADC] = &meson8b_sar_adc.hw, | |
530 | [CLKID_SMART_CARD] = &meson8b_smart_card.hw, | |
531 | [CLKID_RNG0] = &meson8b_rng0.hw, | |
532 | [CLKID_UART0] = &meson8b_uart0.hw, | |
533 | [CLKID_SDHC] = &meson8b_sdhc.hw, | |
534 | [CLKID_STREAM] = &meson8b_stream.hw, | |
535 | [CLKID_ASYNC_FIFO] = &meson8b_async_fifo.hw, | |
536 | [CLKID_SDIO] = &meson8b_sdio.hw, | |
537 | [CLKID_ABUF] = &meson8b_abuf.hw, | |
538 | [CLKID_HIU_IFACE] = &meson8b_hiu_iface.hw, | |
539 | [CLKID_ASSIST_MISC] = &meson8b_assist_misc.hw, | |
540 | [CLKID_SPI] = &meson8b_spi.hw, | |
541 | [CLKID_I2S_SPDIF] = &meson8b_i2s_spdif.hw, | |
542 | [CLKID_ETH] = &meson8b_eth.hw, | |
543 | [CLKID_DEMUX] = &meson8b_demux.hw, | |
544 | [CLKID_AIU_GLUE] = &meson8b_aiu_glue.hw, | |
545 | [CLKID_IEC958] = &meson8b_iec958.hw, | |
546 | [CLKID_I2S_OUT] = &meson8b_i2s_out.hw, | |
547 | [CLKID_AMCLK] = &meson8b_amclk.hw, | |
548 | [CLKID_AIFIFO2] = &meson8b_aififo2.hw, | |
549 | [CLKID_MIXER] = &meson8b_mixer.hw, | |
550 | [CLKID_MIXER_IFACE] = &meson8b_mixer_iface.hw, | |
551 | [CLKID_ADC] = &meson8b_adc.hw, | |
552 | [CLKID_BLKMV] = &meson8b_blkmv.hw, | |
553 | [CLKID_AIU] = &meson8b_aiu.hw, | |
554 | [CLKID_UART1] = &meson8b_uart1.hw, | |
555 | [CLKID_G2D] = &meson8b_g2d.hw, | |
556 | [CLKID_USB0] = &meson8b_usb0.hw, | |
557 | [CLKID_USB1] = &meson8b_usb1.hw, | |
558 | [CLKID_RESET] = &meson8b_reset.hw, | |
559 | [CLKID_NAND] = &meson8b_nand.hw, | |
560 | [CLKID_DOS_PARSER] = &meson8b_dos_parser.hw, | |
561 | [CLKID_USB] = &meson8b_usb.hw, | |
562 | [CLKID_VDIN1] = &meson8b_vdin1.hw, | |
563 | [CLKID_AHB_ARB0] = &meson8b_ahb_arb0.hw, | |
564 | [CLKID_EFUSE] = &meson8b_efuse.hw, | |
565 | [CLKID_BOOT_ROM] = &meson8b_boot_rom.hw, | |
566 | [CLKID_AHB_DATA_BUS] = &meson8b_ahb_data_bus.hw, | |
567 | [CLKID_AHB_CTRL_BUS] = &meson8b_ahb_ctrl_bus.hw, | |
568 | [CLKID_HDMI_INTR_SYNC] = &meson8b_hdmi_intr_sync.hw, | |
569 | [CLKID_HDMI_PCLK] = &meson8b_hdmi_pclk.hw, | |
570 | [CLKID_USB1_DDR_BRIDGE] = &meson8b_usb1_ddr_bridge.hw, | |
571 | [CLKID_USB0_DDR_BRIDGE] = &meson8b_usb0_ddr_bridge.hw, | |
572 | [CLKID_MMC_PCLK] = &meson8b_mmc_pclk.hw, | |
573 | [CLKID_DVIN] = &meson8b_dvin.hw, | |
574 | [CLKID_UART2] = &meson8b_uart2.hw, | |
575 | [CLKID_SANA] = &meson8b_sana.hw, | |
576 | [CLKID_VPU_INTR] = &meson8b_vpu_intr.hw, | |
577 | [CLKID_SEC_AHB_AHB3_BRIDGE] = &meson8b_sec_ahb_ahb3_bridge.hw, | |
578 | [CLKID_CLK81_A9] = &meson8b_clk81_a9.hw, | |
579 | [CLKID_VCLK2_VENCI0] = &meson8b_vclk2_venci0.hw, | |
580 | [CLKID_VCLK2_VENCI1] = &meson8b_vclk2_venci1.hw, | |
581 | [CLKID_VCLK2_VENCP0] = &meson8b_vclk2_vencp0.hw, | |
582 | [CLKID_VCLK2_VENCP1] = &meson8b_vclk2_vencp1.hw, | |
583 | [CLKID_GCLK_VENCI_INT] = &meson8b_gclk_venci_int.hw, | |
0d5aa65e | 584 | [CLKID_GCLK_VENCP_INT] = &meson8b_gclk_vencp_int.hw, |
e31a1900 AM |
585 | [CLKID_DAC_CLK] = &meson8b_dac_clk.hw, |
586 | [CLKID_AOCLK_GATE] = &meson8b_aoclk_gate.hw, | |
587 | [CLKID_IEC958_GATE] = &meson8b_iec958_gate.hw, | |
588 | [CLKID_ENC480P] = &meson8b_enc480p.hw, | |
589 | [CLKID_RNG1] = &meson8b_rng1.hw, | |
590 | [CLKID_GCLK_VENCL_INT] = &meson8b_gclk_vencl_int.hw, | |
591 | [CLKID_VCLK2_VENCLMCC] = &meson8b_vclk2_venclmcc.hw, | |
592 | [CLKID_VCLK2_VENCL] = &meson8b_vclk2_vencl.hw, | |
593 | [CLKID_VCLK2_OTHER] = &meson8b_vclk2_other.hw, | |
594 | [CLKID_EDP] = &meson8b_edp.hw, | |
595 | [CLKID_AO_MEDIA_CPU] = &meson8b_ao_media_cpu.hw, | |
596 | [CLKID_AO_AHB_SRAM] = &meson8b_ao_ahb_sram.hw, | |
597 | [CLKID_AO_AHB_BUS] = &meson8b_ao_ahb_bus.hw, | |
598 | [CLKID_AO_IFACE] = &meson8b_ao_iface.hw, | |
b778f745 JB |
599 | [CLKID_MPLL0] = &meson8b_mpll0.hw, |
600 | [CLKID_MPLL1] = &meson8b_mpll1.hw, | |
601 | [CLKID_MPLL2] = &meson8b_mpll2.hw, | |
de2bc417 | 602 | [CLK_NR_CLKS] = NULL, |
e92f7cca MT |
603 | }, |
604 | .num = CLK_NR_CLKS, | |
605 | }; | |
606 | ||
ec623f2a MT |
607 | static struct meson_clk_pll *const meson8b_clk_plls[] = { |
608 | &meson8b_fixed_pll, | |
609 | &meson8b_vid_pll, | |
610 | &meson8b_sys_pll, | |
611 | }; | |
612 | ||
b778f745 JB |
613 | static struct meson_clk_mpll *const meson8b_clk_mplls[] = { |
614 | &meson8b_mpll0, | |
615 | &meson8b_mpll1, | |
616 | &meson8b_mpll2, | |
617 | }; | |
618 | ||
f7e3a826 | 619 | static struct clk_gate *const meson8b_clk_gates[] = { |
e31a1900 AM |
620 | &meson8b_clk81, |
621 | &meson8b_ddr, | |
622 | &meson8b_dos, | |
623 | &meson8b_isa, | |
624 | &meson8b_pl301, | |
625 | &meson8b_periphs, | |
626 | &meson8b_spicc, | |
627 | &meson8b_i2c, | |
628 | &meson8b_sar_adc, | |
629 | &meson8b_smart_card, | |
630 | &meson8b_rng0, | |
631 | &meson8b_uart0, | |
632 | &meson8b_sdhc, | |
633 | &meson8b_stream, | |
634 | &meson8b_async_fifo, | |
635 | &meson8b_sdio, | |
636 | &meson8b_abuf, | |
637 | &meson8b_hiu_iface, | |
638 | &meson8b_assist_misc, | |
639 | &meson8b_spi, | |
640 | &meson8b_i2s_spdif, | |
641 | &meson8b_eth, | |
642 | &meson8b_demux, | |
643 | &meson8b_aiu_glue, | |
644 | &meson8b_iec958, | |
645 | &meson8b_i2s_out, | |
646 | &meson8b_amclk, | |
647 | &meson8b_aififo2, | |
648 | &meson8b_mixer, | |
649 | &meson8b_mixer_iface, | |
650 | &meson8b_adc, | |
651 | &meson8b_blkmv, | |
652 | &meson8b_aiu, | |
653 | &meson8b_uart1, | |
654 | &meson8b_g2d, | |
655 | &meson8b_usb0, | |
656 | &meson8b_usb1, | |
657 | &meson8b_reset, | |
658 | &meson8b_nand, | |
659 | &meson8b_dos_parser, | |
660 | &meson8b_usb, | |
661 | &meson8b_vdin1, | |
662 | &meson8b_ahb_arb0, | |
663 | &meson8b_efuse, | |
664 | &meson8b_boot_rom, | |
665 | &meson8b_ahb_data_bus, | |
666 | &meson8b_ahb_ctrl_bus, | |
667 | &meson8b_hdmi_intr_sync, | |
668 | &meson8b_hdmi_pclk, | |
669 | &meson8b_usb1_ddr_bridge, | |
670 | &meson8b_usb0_ddr_bridge, | |
671 | &meson8b_mmc_pclk, | |
672 | &meson8b_dvin, | |
673 | &meson8b_uart2, | |
674 | &meson8b_sana, | |
675 | &meson8b_vpu_intr, | |
676 | &meson8b_sec_ahb_ahb3_bridge, | |
677 | &meson8b_clk81_a9, | |
678 | &meson8b_vclk2_venci0, | |
679 | &meson8b_vclk2_venci1, | |
680 | &meson8b_vclk2_vencp0, | |
681 | &meson8b_vclk2_vencp1, | |
682 | &meson8b_gclk_venci_int, | |
683 | &meson8b_gclk_vencp_int, | |
684 | &meson8b_dac_clk, | |
685 | &meson8b_aoclk_gate, | |
686 | &meson8b_iec958_gate, | |
687 | &meson8b_enc480p, | |
688 | &meson8b_rng1, | |
689 | &meson8b_gclk_vencl_int, | |
690 | &meson8b_vclk2_venclmcc, | |
691 | &meson8b_vclk2_vencl, | |
692 | &meson8b_vclk2_other, | |
693 | &meson8b_edp, | |
694 | &meson8b_ao_media_cpu, | |
695 | &meson8b_ao_ahb_sram, | |
696 | &meson8b_ao_ahb_bus, | |
697 | &meson8b_ao_iface, | |
698 | }; | |
699 | ||
e988aae5 JB |
700 | static struct clk_mux *const meson8b_clk_muxes[] = { |
701 | &meson8b_mpeg_clk_sel, | |
702 | }; | |
703 | ||
704 | static struct clk_divider *const meson8b_clk_dividers[] = { | |
705 | &meson8b_mpeg_clk_div, | |
706 | }; | |
707 | ||
18962172 MB |
708 | static const struct meson8b_clk_reset_line { |
709 | u32 reg; | |
710 | u8 bit_idx; | |
711 | } meson8b_clk_reset_bits[] = { | |
712 | [CLKC_RESET_L2_CACHE_SOFT_RESET] = { | |
713 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 30 | |
714 | }, | |
715 | [CLKC_RESET_AXI_64_TO_128_BRIDGE_A5_SOFT_RESET] = { | |
716 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 29 | |
717 | }, | |
718 | [CLKC_RESET_SCU_SOFT_RESET] = { | |
719 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 28 | |
720 | }, | |
721 | [CLKC_RESET_CPU3_SOFT_RESET] = { | |
722 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 27 | |
723 | }, | |
724 | [CLKC_RESET_CPU2_SOFT_RESET] = { | |
725 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 26 | |
726 | }, | |
727 | [CLKC_RESET_CPU1_SOFT_RESET] = { | |
728 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 25 | |
729 | }, | |
730 | [CLKC_RESET_CPU0_SOFT_RESET] = { | |
731 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 24 | |
732 | }, | |
733 | [CLKC_RESET_A5_GLOBAL_RESET] = { | |
734 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 18 | |
735 | }, | |
736 | [CLKC_RESET_A5_AXI_SOFT_RESET] = { | |
737 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 17 | |
738 | }, | |
739 | [CLKC_RESET_A5_ABP_SOFT_RESET] = { | |
740 | .reg = HHI_SYS_CPU_CLK_CNTL0, .bit_idx = 16 | |
741 | }, | |
742 | [CLKC_RESET_AXI_64_TO_128_BRIDGE_MMC_SOFT_RESET] = { | |
743 | .reg = HHI_SYS_CPU_CLK_CNTL1, .bit_idx = 30 | |
744 | }, | |
745 | [CLKC_RESET_VID_CLK_CNTL_SOFT_RESET] = { | |
746 | .reg = HHI_VID_CLK_CNTL, .bit_idx = 15 | |
747 | }, | |
748 | [CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_POST] = { | |
749 | .reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 7 | |
750 | }, | |
751 | [CLKC_RESET_VID_DIVIDER_CNTL_SOFT_RESET_PRE] = { | |
752 | .reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 3 | |
753 | }, | |
754 | [CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_POST] = { | |
755 | .reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 1 | |
756 | }, | |
757 | [CLKC_RESET_VID_DIVIDER_CNTL_RESET_N_PRE] = { | |
758 | .reg = HHI_VID_DIVIDER_CNTL, .bit_idx = 0 | |
759 | }, | |
760 | }; | |
761 | ||
762 | static int meson8b_clk_reset_update(struct reset_controller_dev *rcdev, | |
763 | unsigned long id, bool assert) | |
764 | { | |
765 | struct meson8b_clk_reset *meson8b_clk_reset = | |
766 | container_of(rcdev, struct meson8b_clk_reset, reset); | |
767 | unsigned long flags; | |
768 | const struct meson8b_clk_reset_line *reset; | |
769 | u32 val; | |
770 | ||
771 | if (id >= ARRAY_SIZE(meson8b_clk_reset_bits)) | |
772 | return -EINVAL; | |
773 | ||
774 | reset = &meson8b_clk_reset_bits[id]; | |
775 | ||
776 | spin_lock_irqsave(&clk_lock, flags); | |
777 | ||
778 | val = readl(meson8b_clk_reset->base + reset->reg); | |
779 | if (assert) | |
780 | val |= BIT(reset->bit_idx); | |
781 | else | |
782 | val &= ~BIT(reset->bit_idx); | |
783 | writel(val, meson8b_clk_reset->base + reset->reg); | |
784 | ||
785 | spin_unlock_irqrestore(&clk_lock, flags); | |
786 | ||
787 | return 0; | |
788 | } | |
789 | ||
790 | static int meson8b_clk_reset_assert(struct reset_controller_dev *rcdev, | |
791 | unsigned long id) | |
792 | { | |
793 | return meson8b_clk_reset_update(rcdev, id, true); | |
794 | } | |
795 | ||
796 | static int meson8b_clk_reset_deassert(struct reset_controller_dev *rcdev, | |
797 | unsigned long id) | |
798 | { | |
799 | return meson8b_clk_reset_update(rcdev, id, false); | |
800 | } | |
801 | ||
802 | static const struct reset_control_ops meson8b_clk_reset_ops = { | |
803 | .assert = meson8b_clk_reset_assert, | |
804 | .deassert = meson8b_clk_reset_deassert, | |
805 | }; | |
806 | ||
796b9aa8 | 807 | static int meson8b_clkc_probe(struct platform_device *pdev) |
28b9fcd0 | 808 | { |
ec623f2a | 809 | int ret, clkid, i; |
55d42c40 MT |
810 | struct clk_hw *parent_hw; |
811 | struct clk *parent_clk; | |
796b9aa8 | 812 | struct device *dev = &pdev->dev; |
28b9fcd0 | 813 | |
18962172 | 814 | if (!clk_base) |
796b9aa8 | 815 | return -ENXIO; |
28b9fcd0 | 816 | |
ec623f2a MT |
817 | /* Populate base address for PLLs */ |
818 | for (i = 0; i < ARRAY_SIZE(meson8b_clk_plls); i++) | |
819 | meson8b_clk_plls[i]->base = clk_base; | |
820 | ||
b778f745 JB |
821 | /* Populate base address for MPLLs */ |
822 | for (i = 0; i < ARRAY_SIZE(meson8b_clk_mplls); i++) | |
823 | meson8b_clk_mplls[i]->base = clk_base; | |
824 | ||
55d42c40 MT |
825 | /* Populate the base address for CPU clk */ |
826 | meson8b_cpu_clk.base = clk_base; | |
827 | ||
e31a1900 AM |
828 | /* Populate base address for gates */ |
829 | for (i = 0; i < ARRAY_SIZE(meson8b_clk_gates); i++) | |
830 | meson8b_clk_gates[i]->reg = clk_base + | |
831 | (u32)meson8b_clk_gates[i]->reg; | |
832 | ||
e988aae5 JB |
833 | /* Populate base address for muxes */ |
834 | for (i = 0; i < ARRAY_SIZE(meson8b_clk_muxes); i++) | |
835 | meson8b_clk_muxes[i]->reg = clk_base + | |
836 | (u32)meson8b_clk_muxes[i]->reg; | |
837 | ||
838 | /* Populate base address for dividers */ | |
839 | for (i = 0; i < ARRAY_SIZE(meson8b_clk_dividers); i++) | |
840 | meson8b_clk_dividers[i]->reg = clk_base + | |
841 | (u32)meson8b_clk_dividers[i]->reg; | |
842 | ||
e92f7cca MT |
843 | /* |
844 | * register all clks | |
845 | * CLKID_UNUSED = 0, so skip it and start with CLKID_XTAL = 1 | |
846 | */ | |
847 | for (clkid = CLKID_XTAL; clkid < CLK_NR_CLKS; clkid++) { | |
848 | /* array might be sparse */ | |
849 | if (!meson8b_hw_onecell_data.hws[clkid]) | |
850 | continue; | |
851 | ||
852 | /* FIXME convert to devm_clk_register */ | |
796b9aa8 | 853 | ret = devm_clk_hw_register(dev, meson8b_hw_onecell_data.hws[clkid]); |
e92f7cca | 854 | if (ret) |
18962172 | 855 | return ret; |
e92f7cca MT |
856 | } |
857 | ||
55d42c40 MT |
858 | /* |
859 | * Register CPU clk notifier | |
860 | * | |
861 | * FIXME this is wrong for a lot of reasons. First, the muxes should be | |
862 | * struct clk_hw objects. Second, we shouldn't program the muxes in | |
863 | * notifier handlers. The tricky programming sequence will be handled | |
864 | * by the forthcoming coordinated clock rates mechanism once that | |
865 | * feature is released. | |
866 | * | |
867 | * Furthermore, looking up the parent this way is terrible. At some | |
868 | * point we will stop allocating a default struct clk when registering | |
869 | * a new clk_hw, and this hack will no longer work. Releasing the ccr | |
870 | * feature before that time solves the problem :-) | |
871 | */ | |
872 | parent_hw = clk_hw_get_parent(&meson8b_cpu_clk.hw); | |
873 | parent_clk = parent_hw->clk; | |
874 | ret = clk_notifier_register(parent_clk, &meson8b_cpu_clk.clk_nb); | |
875 | if (ret) { | |
876 | pr_err("%s: failed to register clock notifier for cpu_clk\n", | |
877 | __func__); | |
18962172 | 878 | return ret; |
55d42c40 MT |
879 | } |
880 | ||
796b9aa8 MT |
881 | return of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get, |
882 | &meson8b_hw_onecell_data); | |
28b9fcd0 | 883 | } |
796b9aa8 MT |
884 | |
885 | static const struct of_device_id meson8b_clkc_match_table[] = { | |
855f06a1 | 886 | { .compatible = "amlogic,meson8-clkc" }, |
796b9aa8 | 887 | { .compatible = "amlogic,meson8b-clkc" }, |
855f06a1 | 888 | { .compatible = "amlogic,meson8m2-clkc" }, |
796b9aa8 MT |
889 | { } |
890 | }; | |
796b9aa8 MT |
891 | |
892 | static struct platform_driver meson8b_driver = { | |
893 | .probe = meson8b_clkc_probe, | |
894 | .driver = { | |
895 | .name = "meson8b-clkc", | |
896 | .of_match_table = meson8b_clkc_match_table, | |
897 | }, | |
898 | }; | |
899 | ||
8edeae56 | 900 | builtin_platform_driver(meson8b_driver); |
18962172 MB |
901 | |
902 | static void __init meson8b_clkc_reset_init(struct device_node *np) | |
903 | { | |
904 | struct meson8b_clk_reset *rstc; | |
905 | int ret; | |
906 | ||
907 | /* Generic clocks, PLLs and some of the reset-bits */ | |
908 | clk_base = of_iomap(np, 1); | |
909 | if (!clk_base) { | |
910 | pr_err("%s: Unable to map clk base\n", __func__); | |
911 | return; | |
912 | } | |
913 | ||
914 | rstc = kzalloc(sizeof(*rstc), GFP_KERNEL); | |
915 | if (!rstc) | |
916 | return; | |
917 | ||
918 | /* Reset Controller */ | |
919 | rstc->base = clk_base; | |
920 | rstc->reset.ops = &meson8b_clk_reset_ops; | |
921 | rstc->reset.nr_resets = ARRAY_SIZE(meson8b_clk_reset_bits); | |
922 | rstc->reset.of_node = np; | |
923 | ret = reset_controller_register(&rstc->reset); | |
924 | if (ret) { | |
925 | pr_err("%s: Failed to register clkc reset controller: %d\n", | |
926 | __func__, ret); | |
927 | return; | |
928 | } | |
929 | } | |
930 | ||
931 | CLK_OF_DECLARE_DRIVER(meson8_clkc, "amlogic,meson8-clkc", | |
932 | meson8b_clkc_reset_init); | |
933 | CLK_OF_DECLARE_DRIVER(meson8b_clkc, "amlogic,meson8b-clkc", | |
934 | meson8b_clkc_reset_init); | |
935 | CLK_OF_DECLARE_DRIVER(meson8m2_clkc, "amlogic,meson8m2-clkc", | |
936 | meson8b_clkc_reset_init); |