1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Copyright (c) 2017 Chen-Yu Tsai. All rights reserved.
4  */
5 
6 #include <linux/clk-provider.h>
7 #include <linux/io.h>
8 #include <linux/module.h>
9 #include <linux/platform_device.h>
10 
11 #include "ccu_common.h"
12 #include "ccu_reset.h"
13 
14 #include "ccu_div.h"
15 #include "ccu_gate.h"
16 #include "ccu_mp.h"
17 #include "ccu_mux.h"
18 #include "ccu_nkmp.h"
19 #include "ccu_nm.h"
20 #include "ccu_phase.h"
21 
22 #include "ccu-sun8i-a83t.h"
23 
24 #define CCU_SUN8I_A83T_LOCK_REG	0x20c
25 
26 /*
27  * The CPU PLLs are actually NP clocks, with P being /1 or /4. However
28  * P should only be used for output frequencies lower than 228 MHz.
29  * Neither mainline Linux, U-boot, nor the vendor BSPs use these.
30  *
31  * For now we can just model it as a multiplier clock, and force P to /1.
32  */
33 #define SUN8I_A83T_PLL_C0CPUX_REG	0x000
34 #define SUN8I_A83T_PLL_C1CPUX_REG	0x004
35 
36 static struct ccu_mult pll_c0cpux_clk = {
37 	.enable		= BIT(31),
38 	.lock		= BIT(0),
39 	.mult		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
40 	.common		= {
41 		.reg		= SUN8I_A83T_PLL_C0CPUX_REG,
42 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
43 		.features	= CCU_FEATURE_LOCK_REG,
44 		.hw.init	= CLK_HW_INIT("pll-c0cpux", "osc24M",
45 					      &ccu_mult_ops,
46 					      CLK_SET_RATE_UNGATE),
47 	},
48 };
49 
50 static struct ccu_mult pll_c1cpux_clk = {
51 	.enable		= BIT(31),
52 	.lock		= BIT(1),
53 	.mult		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
54 	.common		= {
55 		.reg		= SUN8I_A83T_PLL_C1CPUX_REG,
56 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
57 		.features	= CCU_FEATURE_LOCK_REG,
58 		.hw.init	= CLK_HW_INIT("pll-c1cpux", "osc24M",
59 					      &ccu_mult_ops,
60 					      CLK_SET_RATE_UNGATE),
61 	},
62 };
63 
64 /*
65  * The Audio PLL has d1, d2 dividers in addition to the usual N, M
66  * factors. Since we only need 2 frequencies from this PLL: 22.5792 MHz
67  * and 24.576 MHz, ignore them for now. Enforce the default for them,
68  * which is d1 = 0, d2 = 1.
69  */
70 #define SUN8I_A83T_PLL_AUDIO_REG	0x008
71 
72 /* clock rates doubled for post divider */
73 static struct ccu_sdm_setting pll_audio_sdm_table[] = {
74 	{ .rate = 45158400, .pattern = 0xc00121ff, .m = 29, .n = 54 },
75 	{ .rate = 49152000, .pattern = 0xc000e147, .m = 30, .n = 61 },
76 };
77 
78 static struct ccu_nm pll_audio_clk = {
79 	.enable		= BIT(31),
80 	.lock		= BIT(2),
81 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
82 	.m		= _SUNXI_CCU_DIV(0, 6),
83 	.fixed_post_div	= 2,
84 	.sdm		= _SUNXI_CCU_SDM(pll_audio_sdm_table, BIT(24),
85 					 0x284, BIT(31)),
86 	.common		= {
87 		.reg		= SUN8I_A83T_PLL_AUDIO_REG,
88 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
89 		.features	= CCU_FEATURE_LOCK_REG |
90 				  CCU_FEATURE_FIXED_POSTDIV |
91 				  CCU_FEATURE_SIGMA_DELTA_MOD,
92 		.hw.init	= CLK_HW_INIT("pll-audio", "osc24M",
93 					      &ccu_nm_ops, CLK_SET_RATE_UNGATE),
94 	},
95 };
96 
97 /* Some PLLs are input * N / div1 / P. Model them as NKMP with no K */
98 static struct ccu_nkmp pll_video0_clk = {
99 	.enable		= BIT(31),
100 	.lock		= BIT(3),
101 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
102 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
103 	.p		= _SUNXI_CCU_DIV(0, 2), /* output divider */
104 	.max_rate	= 3000000000UL,
105 	.common		= {
106 		.reg		= 0x010,
107 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
108 		.features	= CCU_FEATURE_LOCK_REG,
109 		.hw.init	= CLK_HW_INIT("pll-video0", "osc24M",
110 					      &ccu_nkmp_ops,
111 					      CLK_SET_RATE_UNGATE),
112 	},
113 };
114 
115 static struct ccu_nkmp pll_ve_clk = {
116 	.enable		= BIT(31),
117 	.lock		= BIT(4),
118 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
119 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
120 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
121 	.common		= {
122 		.reg		= 0x018,
123 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
124 		.features	= CCU_FEATURE_LOCK_REG,
125 		.hw.init	= CLK_HW_INIT("pll-ve", "osc24M",
126 					      &ccu_nkmp_ops,
127 					      CLK_SET_RATE_UNGATE),
128 	},
129 };
130 
131 static struct ccu_nkmp pll_ddr_clk = {
132 	.enable		= BIT(31),
133 	.lock		= BIT(5),
134 	.n		= _SUNXI_CCU_MULT_MIN(8, 8, 12),
135 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
136 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
137 	.common		= {
138 		.reg		= 0x020,
139 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
140 		.features	= CCU_FEATURE_LOCK_REG,
141 		.hw.init	= CLK_HW_INIT("pll-ddr", "osc24M",
142 					      &ccu_nkmp_ops,
143 					      CLK_SET_RATE_UNGATE),
144 	},
145 };
146 
147 static struct ccu_nkmp pll_periph_clk = {
148 	.enable		= BIT(31),
149 	.lock		= BIT(6),
150 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
151 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
152 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
153 	.common		= {
154 		.reg		= 0x028,
155 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
156 		.features	= CCU_FEATURE_LOCK_REG,
157 		.hw.init	= CLK_HW_INIT("pll-periph", "osc24M",
158 					      &ccu_nkmp_ops,
159 					      CLK_SET_RATE_UNGATE),
160 	},
161 };
162 
163 static struct ccu_nkmp pll_gpu_clk = {
164 	.enable		= BIT(31),
165 	.lock		= BIT(7),
166 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
167 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
168 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
169 	.common		= {
170 		.reg		= 0x038,
171 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
172 		.features	= CCU_FEATURE_LOCK_REG,
173 		.hw.init	= CLK_HW_INIT("pll-gpu", "osc24M",
174 					      &ccu_nkmp_ops,
175 					      CLK_SET_RATE_UNGATE),
176 	},
177 };
178 
179 static struct ccu_nkmp pll_hsic_clk = {
180 	.enable		= BIT(31),
181 	.lock		= BIT(8),
182 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
183 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
184 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
185 	.common		= {
186 		.reg		= 0x044,
187 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
188 		.features	= CCU_FEATURE_LOCK_REG,
189 		.hw.init	= CLK_HW_INIT("pll-hsic", "osc24M",
190 					      &ccu_nkmp_ops,
191 					      CLK_SET_RATE_UNGATE),
192 	},
193 };
194 
195 static struct ccu_nkmp pll_de_clk = {
196 	.enable		= BIT(31),
197 	.lock		= BIT(9),
198 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
199 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
200 	.p		= _SUNXI_CCU_DIV(18, 1), /* output divider */
201 	.common		= {
202 		.reg		= 0x048,
203 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
204 		.features	= CCU_FEATURE_LOCK_REG,
205 		.hw.init	= CLK_HW_INIT("pll-de", "osc24M",
206 					      &ccu_nkmp_ops,
207 					      CLK_SET_RATE_UNGATE),
208 	},
209 };
210 
211 static struct ccu_nkmp pll_video1_clk = {
212 	.enable		= BIT(31),
213 	.lock		= BIT(10),
214 	.n		= _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 8, 0, 12, 0),
215 	.m		= _SUNXI_CCU_DIV(16, 1), /* input divider */
216 	.p		= _SUNXI_CCU_DIV(0, 2), /* external divider p */
217 	.max_rate	= 3000000000UL,
218 	.common		= {
219 		.reg		= 0x04c,
220 		.lock_reg	= CCU_SUN8I_A83T_LOCK_REG,
221 		.features	= CCU_FEATURE_LOCK_REG,
222 		.hw.init	= CLK_HW_INIT("pll-video1", "osc24M",
223 					      &ccu_nkmp_ops,
224 					      CLK_SET_RATE_UNGATE),
225 	},
226 };
227 
228 static const char * const c0cpux_parents[] = { "osc24M", "pll-c0cpux" };
229 static SUNXI_CCU_MUX(c0cpux_clk, "c0cpux", c0cpux_parents,
230 		     0x50, 12, 1, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
231 
232 static const char * const c1cpux_parents[] = { "osc24M", "pll-c1cpux" };
233 static SUNXI_CCU_MUX(c1cpux_clk, "c1cpux", c1cpux_parents,
234 		     0x50, 28, 1, CLK_SET_RATE_PARENT | CLK_IS_CRITICAL);
235 
236 static SUNXI_CCU_M(axi0_clk, "axi0", "c0cpux", 0x050, 0, 2, 0);
237 static SUNXI_CCU_M(axi1_clk, "axi1", "c1cpux", 0x050, 16, 2, 0);
238 
239 static const char * const ahb1_parents[] = { "osc16M-d512", "osc24M",
240 					     "pll-periph",
241 					     "pll-periph" };
242 static const struct ccu_mux_var_prediv ahb1_predivs[] = {
243 	{ .index = 2, .shift = 6, .width = 2 },
244 	{ .index = 3, .shift = 6, .width = 2 },
245 };
246 static struct ccu_div ahb1_clk = {
247 	.div		= _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
248 	.mux		= {
249 		.shift	= 12,
250 		.width	= 2,
251 
252 		.var_predivs	= ahb1_predivs,
253 		.n_var_predivs	= ARRAY_SIZE(ahb1_predivs),
254 	},
255 	.common		= {
256 		.reg		= 0x054,
257 		.hw.init	= CLK_HW_INIT_PARENTS("ahb1",
258 						      ahb1_parents,
259 						      &ccu_div_ops,
260 						      0),
261 	},
262 };
263 
264 static SUNXI_CCU_M(apb1_clk, "apb1", "ahb1", 0x054, 8, 2, 0);
265 
266 static const char * const apb2_parents[] = { "osc16M-d512", "osc24M",
267 					     "pll-periph", "pll-periph" };
268 
269 static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", apb2_parents, 0x058,
270 			     0, 5,	/* M */
271 			     16, 2,	/* P */
272 			     24, 2,	/* mux */
273 			     0);
274 
275 static const char * const ahb2_parents[] = { "ahb1", "pll-periph" };
276 static const struct ccu_mux_fixed_prediv ahb2_prediv = {
277 	.index = 1, .div = 2
278 };
279 static struct ccu_mux ahb2_clk = {
280 	.mux		= {
281 		.shift		= 0,
282 		.width		= 2,
283 		.fixed_predivs	= &ahb2_prediv,
284 		.n_predivs	= 1,
285 	},
286 	.common		= {
287 		.reg		= 0x05c,
288 		.hw.init	= CLK_HW_INIT_PARENTS("ahb2",
289 						      ahb2_parents,
290 						      &ccu_mux_ops,
291 						      0),
292 	},
293 };
294 
295 static SUNXI_CCU_GATE(bus_mipi_dsi_clk,	"bus-mipi-dsi",	"ahb1",
296 		      0x060, BIT(1), 0);
297 static SUNXI_CCU_GATE(bus_ss_clk,	"bus-ss",	"ahb1",
298 		      0x060, BIT(5), 0);
299 static SUNXI_CCU_GATE(bus_dma_clk,	"bus-dma",	"ahb1",
300 		      0x060, BIT(6), 0);
301 static SUNXI_CCU_GATE(bus_mmc0_clk,	"bus-mmc0",	"ahb1",
302 		      0x060, BIT(8), 0);
303 static SUNXI_CCU_GATE(bus_mmc1_clk,	"bus-mmc1",	"ahb1",
304 		      0x060, BIT(9), 0);
305 static SUNXI_CCU_GATE(bus_mmc2_clk,	"bus-mmc2",	"ahb1",
306 		      0x060, BIT(10), 0);
307 static SUNXI_CCU_GATE(bus_nand_clk,	"bus-nand",	"ahb1",
308 		      0x060, BIT(13), 0);
309 static SUNXI_CCU_GATE(bus_dram_clk,	"bus-dram",	"ahb1",
310 		      0x060, BIT(14), 0);
311 static SUNXI_CCU_GATE(bus_emac_clk,	"bus-emac",	"ahb2",
312 		      0x060, BIT(17), 0);
313 static SUNXI_CCU_GATE(bus_hstimer_clk,	"bus-hstimer",	"ahb1",
314 		      0x060, BIT(19), 0);
315 static SUNXI_CCU_GATE(bus_spi0_clk,	"bus-spi0",	"ahb1",
316 		      0x060, BIT(20), 0);
317 static SUNXI_CCU_GATE(bus_spi1_clk,	"bus-spi1",	"ahb1",
318 		      0x060, BIT(21), 0);
319 static SUNXI_CCU_GATE(bus_otg_clk,	"bus-otg",	"ahb1",
320 		      0x060, BIT(24), 0);
321 static SUNXI_CCU_GATE(bus_ehci0_clk,	"bus-ehci0",	"ahb2",
322 		      0x060, BIT(26), 0);
323 static SUNXI_CCU_GATE(bus_ehci1_clk,	"bus-ehci1",	"ahb2",
324 		      0x060, BIT(27), 0);
325 static SUNXI_CCU_GATE(bus_ohci0_clk,	"bus-ohci0",	"ahb2",
326 		      0x060, BIT(29), 0);
327 
328 static SUNXI_CCU_GATE(bus_ve_clk,	"bus-ve",	"ahb1",
329 		      0x064, BIT(0), 0);
330 static SUNXI_CCU_GATE(bus_tcon0_clk,	"bus-tcon0",	"ahb1",
331 		      0x064, BIT(4), 0);
332 static SUNXI_CCU_GATE(bus_tcon1_clk,	"bus-tcon1",	"ahb1",
333 		      0x064, BIT(5), 0);
334 static SUNXI_CCU_GATE(bus_csi_clk,	"bus-csi",	"ahb1",
335 		      0x064, BIT(8), 0);
336 static SUNXI_CCU_GATE(bus_hdmi_clk,	"bus-hdmi",	"ahb1",
337 		      0x064, BIT(11), 0);
338 static SUNXI_CCU_GATE(bus_de_clk,	"bus-de",	"ahb1",
339 		      0x064, BIT(12), 0);
340 static SUNXI_CCU_GATE(bus_gpu_clk,	"bus-gpu",	"ahb1",
341 		      0x064, BIT(20), 0);
342 static SUNXI_CCU_GATE(bus_msgbox_clk,	"bus-msgbox",	"ahb1",
343 		      0x064, BIT(21), 0);
344 static SUNXI_CCU_GATE(bus_spinlock_clk,	"bus-spinlock",	"ahb1",
345 		      0x064, BIT(22), 0);
346 
347 static SUNXI_CCU_GATE(bus_spdif_clk,	"bus-spdif",	"apb1",
348 		      0x068, BIT(1), 0);
349 static SUNXI_CCU_GATE(bus_pio_clk,	"bus-pio",	"apb1",
350 		      0x068, BIT(5), 0);
351 static SUNXI_CCU_GATE(bus_i2s0_clk,	"bus-i2s0",	"apb1",
352 		      0x068, BIT(12), 0);
353 static SUNXI_CCU_GATE(bus_i2s1_clk,	"bus-i2s1",	"apb1",
354 		      0x068, BIT(13), 0);
355 static SUNXI_CCU_GATE(bus_i2s2_clk,	"bus-i2s2",	"apb1",
356 		      0x068, BIT(14), 0);
357 static SUNXI_CCU_GATE(bus_tdm_clk,	"bus-tdm",	"apb1",
358 		      0x068, BIT(15), 0);
359 
360 static SUNXI_CCU_GATE(bus_i2c0_clk,	"bus-i2c0",	"apb2",
361 		      0x06c, BIT(0), 0);
362 static SUNXI_CCU_GATE(bus_i2c1_clk,	"bus-i2c1",	"apb2",
363 		      0x06c, BIT(1), 0);
364 static SUNXI_CCU_GATE(bus_i2c2_clk,	"bus-i2c2",	"apb2",
365 		      0x06c, BIT(2), 0);
366 static SUNXI_CCU_GATE(bus_uart0_clk,	"bus-uart0",	"apb2",
367 		      0x06c, BIT(16), 0);
368 static SUNXI_CCU_GATE(bus_uart1_clk,	"bus-uart1",	"apb2",
369 		      0x06c, BIT(17), 0);
370 static SUNXI_CCU_GATE(bus_uart2_clk,	"bus-uart2",	"apb2",
371 		      0x06c, BIT(18), 0);
372 static SUNXI_CCU_GATE(bus_uart3_clk,	"bus-uart3",	"apb2",
373 		      0x06c, BIT(19), 0);
374 static SUNXI_CCU_GATE(bus_uart4_clk,	"bus-uart4",	"apb2",
375 		      0x06c, BIT(20), 0);
376 
377 static const char * const cci400_parents[] = { "osc24M", "pll-periph",
378 					       "pll-hsic" };
379 static struct ccu_div cci400_clk = {
380 	.div		= _SUNXI_CCU_DIV_FLAGS(0, 2, 0),
381 	.mux		= _SUNXI_CCU_MUX(24, 2),
382 	.common		= {
383 		.reg		= 0x078,
384 		.hw.init	= CLK_HW_INIT_PARENTS("cci400",
385 						      cci400_parents,
386 						      &ccu_div_ops,
387 						      CLK_IS_CRITICAL),
388 	},
389 };
390 
391 static const char * const mod0_default_parents[] = { "osc24M", "pll-periph" };
392 
393 static SUNXI_CCU_MP_WITH_MUX_GATE(nand_clk, "nand", mod0_default_parents,
394 				  0x080,
395 				  0, 4,		/* M */
396 				  16, 2,	/* P */
397 				  24, 2,	/* mux */
398 				  BIT(31),	/* gate */
399 				  0);
400 
401 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_default_parents,
402 				  0x088,
403 				  0, 4,		/* M */
404 				  16, 2,	/* P */
405 				  24, 2,	/* mux */
406 				  BIT(31),	/* gate */
407 				  0);
408 
409 static SUNXI_CCU_PHASE(mmc0_sample_clk, "mmc0-sample", "mmc0",
410 		       0x088, 20, 3, 0);
411 static SUNXI_CCU_PHASE(mmc0_output_clk, "mmc0-output", "mmc0",
412 		       0x088, 8, 3, 0);
413 
414 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_default_parents,
415 				  0x08c,
416 				  0, 4,		/* M */
417 				  16, 2,	/* P */
418 				  24, 2,	/* mux */
419 				  BIT(31),	/* gate */
420 				  0);
421 
422 static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1-sample", "mmc1",
423 		       0x08c, 20, 3, 0);
424 static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1-output", "mmc1",
425 		       0x08c, 8, 3, 0);
426 
427 static SUNXI_CCU_MP_MMC_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents,
428 				      0x090, 0);
429 
430 static SUNXI_CCU_PHASE(mmc2_sample_clk, "mmc2-sample", "mmc2",
431 		       0x090, 20, 3, 0);
432 static SUNXI_CCU_PHASE(mmc2_output_clk, "mmc2-output", "mmc2",
433 		       0x090, 8, 3, 0);
434 
435 static SUNXI_CCU_MP_WITH_MUX_GATE(ss_clk, "ss", mod0_default_parents,
436 				  0x09c,
437 				  0, 4,		/* M */
438 				  16, 2,	/* P */
439 				  24, 2,	/* mux */
440 				  BIT(31),	/* gate */
441 				  0);
442 
443 static SUNXI_CCU_MP_WITH_MUX_GATE(spi0_clk, "spi0", mod0_default_parents,
444 				  0x0a0,
445 				  0, 4,		/* M */
446 				  16, 2,	/* P */
447 				  24, 4,	/* mux */
448 				  BIT(31),	/* gate */
449 				  0);
450 
451 static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_clk, "spi1", mod0_default_parents,
452 				  0x0a4,
453 				  0, 4,		/* M */
454 				  16, 2,	/* P */
455 				  24, 4,	/* mux */
456 				  BIT(31),	/* gate */
457 				  0);
458 
459 static SUNXI_CCU_M_WITH_GATE(i2s0_clk, "i2s0", "pll-audio",
460 			     0x0b0, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
461 static SUNXI_CCU_M_WITH_GATE(i2s1_clk, "i2s1", "pll-audio",
462 			     0x0b4, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
463 static SUNXI_CCU_M_WITH_GATE(i2s2_clk, "i2s2", "pll-audio",
464 			     0x0b8, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
465 static SUNXI_CCU_M_WITH_GATE(tdm_clk, "tdm", "pll-audio",
466 			     0x0bc, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
467 static SUNXI_CCU_M_WITH_GATE(spdif_clk, "spdif", "pll-audio",
468 			     0x0c0, 0, 4, BIT(31), CLK_SET_RATE_PARENT);
469 
470 static SUNXI_CCU_GATE(usb_phy0_clk,	"usb-phy0",	"osc24M",
471 		      0x0cc, BIT(8), 0);
472 static SUNXI_CCU_GATE(usb_phy1_clk,	"usb-phy1",	"osc24M",
473 		      0x0cc, BIT(9), 0);
474 static SUNXI_CCU_GATE(usb_hsic_clk,	"usb-hsic",	"pll-hsic",
475 		      0x0cc, BIT(10), 0);
476 static struct ccu_gate usb_hsic_12m_clk = {
477 	.enable	= BIT(11),
478 	.common	= {
479 		.reg		= 0x0cc,
480 		.prediv		= 2,
481 		.features	= CCU_FEATURE_ALL_PREDIV,
482 		.hw.init	= CLK_HW_INIT("usb-hsic-12m", "osc24M",
483 					      &ccu_gate_ops, 0),
484 	}
485 };
486 static SUNXI_CCU_GATE(usb_ohci0_clk,	"usb-ohci0",	"osc24M",
487 		      0x0cc, BIT(16), 0);
488 
489 /* TODO divider has minimum of 2 */
490 static SUNXI_CCU_M(dram_clk, "dram", "pll-ddr", 0x0f4, 0, 4, CLK_IS_CRITICAL);
491 
492 static SUNXI_CCU_GATE(dram_ve_clk,	"dram-ve",	"dram",
493 		      0x100, BIT(0), 0);
494 static SUNXI_CCU_GATE(dram_csi_clk,	"dram-csi",	"dram",
495 		      0x100, BIT(1), 0);
496 
497 static const char * const tcon0_parents[] = { "pll-video0" };
498 static SUNXI_CCU_MUX_WITH_GATE(tcon0_clk, "tcon0", tcon0_parents,
499 				 0x118, 24, 3, BIT(31), CLK_SET_RATE_PARENT);
500 
501 static const char * const tcon1_parents[] = { "pll-video1" };
502 static SUNXI_CCU_M_WITH_MUX_GATE(tcon1_clk, "tcon1", tcon1_parents,
503 				 0x11c, 0, 4, 24, 2, BIT(31), CLK_SET_RATE_PARENT);
504 
505 static SUNXI_CCU_GATE(csi_misc_clk, "csi-misc", "osc24M", 0x130, BIT(16), 0);
506 
507 static SUNXI_CCU_GATE(mipi_csi_clk, "mipi-csi", "osc24M", 0x130, BIT(31), 0);
508 
509 static const char * const csi_mclk_parents[] = { "pll-video0", "pll-de",
510 						 "osc24M" };
511 static const u8 csi_mclk_table[] = { 0, 3, 5 };
512 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_mclk_clk, "csi-mclk",
513 				       csi_mclk_parents, csi_mclk_table,
514 				       0x134,
515 				       0, 5,	/* M */
516 				       8, 3,	/* mux */
517 				       BIT(15),	/* gate */
518 				       0);
519 
520 static const char * const csi_sclk_parents[] = { "pll-periph", "pll-ve" };
521 static const u8 csi_sclk_table[] = { 0, 5 };
522 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_sclk_clk, "csi-sclk",
523 				       csi_sclk_parents, csi_sclk_table,
524 				       0x134,
525 				       16, 4,	/* M */
526 				       24, 3,	/* mux */
527 				       BIT(31),	/* gate */
528 				       0);
529 
530 static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", 0x13c,
531 			     16, 3, BIT(31), CLK_SET_RATE_PARENT);
532 
533 static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", 0x144, BIT(31), 0);
534 
535 static const char * const hdmi_parents[] = { "pll-video1" };
536 static SUNXI_CCU_M_WITH_MUX_GATE(hdmi_clk, "hdmi", hdmi_parents,
537 				 0x150,
538 				 0, 4,	/* M */
539 				 24, 2,	/* mux */
540 				 BIT(31),	/* gate */
541 				 CLK_SET_RATE_PARENT);
542 
543 static SUNXI_CCU_GATE(hdmi_slow_clk, "hdmi-slow", "osc24M", 0x154, BIT(31), 0);
544 
545 static const char * const mbus_parents[] = { "osc24M", "pll-periph",
546 					     "pll-ddr" };
547 static SUNXI_CCU_M_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents,
548 				 0x15c,
549 				 0, 3,	/* M */
550 				 24, 2,	/* mux */
551 				 BIT(31),	/* gate */
552 				 CLK_IS_CRITICAL);
553 
554 static const char * const mipi_dsi0_parents[] = { "pll-video0" };
555 static const u8 mipi_dsi0_table[] = { 8 };
556 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(mipi_dsi0_clk, "mipi-dsi0",
557 				       mipi_dsi0_parents, mipi_dsi0_table,
558 				       0x168,
559 				       0, 4,	/* M */
560 				       24, 4,	/* mux */
561 				       BIT(31),	/* gate */
562 				       CLK_SET_RATE_PARENT);
563 
564 static const char * const mipi_dsi1_parents[] = { "osc24M", "pll-video0" };
565 static const u8 mipi_dsi1_table[] = { 0, 9 };
566 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(mipi_dsi1_clk, "mipi-dsi1",
567 				       mipi_dsi1_parents, mipi_dsi1_table,
568 				       0x16c,
569 				       0, 4,	/* M */
570 				       24, 4,	/* mux */
571 				       BIT(31),	/* gate */
572 				       CLK_SET_RATE_PARENT);
573 
574 static SUNXI_CCU_M_WITH_GATE(gpu_core_clk, "gpu-core", "pll-gpu", 0x1a0,
575 			     0, 3, BIT(31), CLK_SET_RATE_PARENT);
576 
577 static const char * const gpu_memory_parents[] = { "pll-gpu", "pll-ddr" };
578 static SUNXI_CCU_M_WITH_MUX_GATE(gpu_memory_clk, "gpu-memory",
579 				 gpu_memory_parents,
580 				 0x1a4,
581 				 0, 3,		/* M */
582 				 24, 1,		/* mux */
583 				 BIT(31),	/* gate */
584 				 CLK_SET_RATE_PARENT);
585 
586 static SUNXI_CCU_M_WITH_GATE(gpu_hyd_clk, "gpu-hyd", "pll-gpu", 0x1a8,
587 			     0, 3, BIT(31), CLK_SET_RATE_PARENT);
588 
589 static struct ccu_common *sun8i_a83t_ccu_clks[] = {
590 	&pll_c0cpux_clk.common,
591 	&pll_c1cpux_clk.common,
592 	&pll_audio_clk.common,
593 	&pll_video0_clk.common,
594 	&pll_ve_clk.common,
595 	&pll_ddr_clk.common,
596 	&pll_periph_clk.common,
597 	&pll_gpu_clk.common,
598 	&pll_hsic_clk.common,
599 	&pll_de_clk.common,
600 	&pll_video1_clk.common,
601 	&c0cpux_clk.common,
602 	&c1cpux_clk.common,
603 	&axi0_clk.common,
604 	&axi1_clk.common,
605 	&ahb1_clk.common,
606 	&ahb2_clk.common,
607 	&apb1_clk.common,
608 	&apb2_clk.common,
609 	&bus_mipi_dsi_clk.common,
610 	&bus_ss_clk.common,
611 	&bus_dma_clk.common,
612 	&bus_mmc0_clk.common,
613 	&bus_mmc1_clk.common,
614 	&bus_mmc2_clk.common,
615 	&bus_nand_clk.common,
616 	&bus_dram_clk.common,
617 	&bus_emac_clk.common,
618 	&bus_hstimer_clk.common,
619 	&bus_spi0_clk.common,
620 	&bus_spi1_clk.common,
621 	&bus_otg_clk.common,
622 	&bus_ehci0_clk.common,
623 	&bus_ehci1_clk.common,
624 	&bus_ohci0_clk.common,
625 	&bus_ve_clk.common,
626 	&bus_tcon0_clk.common,
627 	&bus_tcon1_clk.common,
628 	&bus_csi_clk.common,
629 	&bus_hdmi_clk.common,
630 	&bus_de_clk.common,
631 	&bus_gpu_clk.common,
632 	&bus_msgbox_clk.common,
633 	&bus_spinlock_clk.common,
634 	&bus_spdif_clk.common,
635 	&bus_pio_clk.common,
636 	&bus_i2s0_clk.common,
637 	&bus_i2s1_clk.common,
638 	&bus_i2s2_clk.common,
639 	&bus_tdm_clk.common,
640 	&bus_i2c0_clk.common,
641 	&bus_i2c1_clk.common,
642 	&bus_i2c2_clk.common,
643 	&bus_uart0_clk.common,
644 	&bus_uart1_clk.common,
645 	&bus_uart2_clk.common,
646 	&bus_uart3_clk.common,
647 	&bus_uart4_clk.common,
648 	&cci400_clk.common,
649 	&nand_clk.common,
650 	&mmc0_clk.common,
651 	&mmc0_sample_clk.common,
652 	&mmc0_output_clk.common,
653 	&mmc1_clk.common,
654 	&mmc1_sample_clk.common,
655 	&mmc1_output_clk.common,
656 	&mmc2_clk.common,
657 	&mmc2_sample_clk.common,
658 	&mmc2_output_clk.common,
659 	&ss_clk.common,
660 	&spi0_clk.common,
661 	&spi1_clk.common,
662 	&i2s0_clk.common,
663 	&i2s1_clk.common,
664 	&i2s2_clk.common,
665 	&tdm_clk.common,
666 	&spdif_clk.common,
667 	&usb_phy0_clk.common,
668 	&usb_phy1_clk.common,
669 	&usb_hsic_clk.common,
670 	&usb_hsic_12m_clk.common,
671 	&usb_ohci0_clk.common,
672 	&dram_clk.common,
673 	&dram_ve_clk.common,
674 	&dram_csi_clk.common,
675 	&tcon0_clk.common,
676 	&tcon1_clk.common,
677 	&csi_misc_clk.common,
678 	&mipi_csi_clk.common,
679 	&csi_mclk_clk.common,
680 	&csi_sclk_clk.common,
681 	&ve_clk.common,
682 	&avs_clk.common,
683 	&hdmi_clk.common,
684 	&hdmi_slow_clk.common,
685 	&mbus_clk.common,
686 	&mipi_dsi0_clk.common,
687 	&mipi_dsi1_clk.common,
688 	&gpu_core_clk.common,
689 	&gpu_memory_clk.common,
690 	&gpu_hyd_clk.common,
691 };
692 
693 static struct clk_hw_onecell_data sun8i_a83t_hw_clks = {
694 	.hws	= {
695 		[CLK_PLL_C0CPUX]	= &pll_c0cpux_clk.common.hw,
696 		[CLK_PLL_C1CPUX]	= &pll_c1cpux_clk.common.hw,
697 		[CLK_PLL_AUDIO]		= &pll_audio_clk.common.hw,
698 		[CLK_PLL_VIDEO0]	= &pll_video0_clk.common.hw,
699 		[CLK_PLL_VE]		= &pll_ve_clk.common.hw,
700 		[CLK_PLL_DDR]		= &pll_ddr_clk.common.hw,
701 		[CLK_PLL_PERIPH]	= &pll_periph_clk.common.hw,
702 		[CLK_PLL_GPU]		= &pll_gpu_clk.common.hw,
703 		[CLK_PLL_HSIC]		= &pll_hsic_clk.common.hw,
704 		[CLK_PLL_DE]		= &pll_de_clk.common.hw,
705 		[CLK_PLL_VIDEO1]	= &pll_video1_clk.common.hw,
706 		[CLK_C0CPUX]		= &c0cpux_clk.common.hw,
707 		[CLK_C1CPUX]		= &c1cpux_clk.common.hw,
708 		[CLK_AXI0]		= &axi0_clk.common.hw,
709 		[CLK_AXI1]		= &axi1_clk.common.hw,
710 		[CLK_AHB1]		= &ahb1_clk.common.hw,
711 		[CLK_AHB2]		= &ahb2_clk.common.hw,
712 		[CLK_APB1]		= &apb1_clk.common.hw,
713 		[CLK_APB2]		= &apb2_clk.common.hw,
714 		[CLK_BUS_MIPI_DSI]	= &bus_mipi_dsi_clk.common.hw,
715 		[CLK_BUS_SS]		= &bus_ss_clk.common.hw,
716 		[CLK_BUS_DMA]		= &bus_dma_clk.common.hw,
717 		[CLK_BUS_MMC0]		= &bus_mmc0_clk.common.hw,
718 		[CLK_BUS_MMC1]		= &bus_mmc1_clk.common.hw,
719 		[CLK_BUS_MMC2]		= &bus_mmc2_clk.common.hw,
720 		[CLK_BUS_NAND]		= &bus_nand_clk.common.hw,
721 		[CLK_BUS_DRAM]		= &bus_dram_clk.common.hw,
722 		[CLK_BUS_EMAC]		= &bus_emac_clk.common.hw,
723 		[CLK_BUS_HSTIMER]	= &bus_hstimer_clk.common.hw,
724 		[CLK_BUS_SPI0]		= &bus_spi0_clk.common.hw,
725 		[CLK_BUS_SPI1]		= &bus_spi1_clk.common.hw,
726 		[CLK_BUS_OTG]		= &bus_otg_clk.common.hw,
727 		[CLK_BUS_EHCI0]		= &bus_ehci0_clk.common.hw,
728 		[CLK_BUS_EHCI1]		= &bus_ehci1_clk.common.hw,
729 		[CLK_BUS_OHCI0]		= &bus_ohci0_clk.common.hw,
730 		[CLK_BUS_VE]		= &bus_ve_clk.common.hw,
731 		[CLK_BUS_TCON0]		= &bus_tcon0_clk.common.hw,
732 		[CLK_BUS_TCON1]		= &bus_tcon1_clk.common.hw,
733 		[CLK_BUS_CSI]		= &bus_csi_clk.common.hw,
734 		[CLK_BUS_HDMI]		= &bus_hdmi_clk.common.hw,
735 		[CLK_BUS_DE]		= &bus_de_clk.common.hw,
736 		[CLK_BUS_GPU]		= &bus_gpu_clk.common.hw,
737 		[CLK_BUS_MSGBOX]	= &bus_msgbox_clk.common.hw,
738 		[CLK_BUS_SPINLOCK]	= &bus_spinlock_clk.common.hw,
739 		[CLK_BUS_SPDIF]		= &bus_spdif_clk.common.hw,
740 		[CLK_BUS_PIO]		= &bus_pio_clk.common.hw,
741 		[CLK_BUS_I2S0]		= &bus_i2s0_clk.common.hw,
742 		[CLK_BUS_I2S1]		= &bus_i2s1_clk.common.hw,
743 		[CLK_BUS_I2S2]		= &bus_i2s2_clk.common.hw,
744 		[CLK_BUS_TDM]		= &bus_tdm_clk.common.hw,
745 		[CLK_BUS_I2C0]		= &bus_i2c0_clk.common.hw,
746 		[CLK_BUS_I2C1]		= &bus_i2c1_clk.common.hw,
747 		[CLK_BUS_I2C2]		= &bus_i2c2_clk.common.hw,
748 		[CLK_BUS_UART0]		= &bus_uart0_clk.common.hw,
749 		[CLK_BUS_UART1]		= &bus_uart1_clk.common.hw,
750 		[CLK_BUS_UART2]		= &bus_uart2_clk.common.hw,
751 		[CLK_BUS_UART3]		= &bus_uart3_clk.common.hw,
752 		[CLK_BUS_UART4]		= &bus_uart4_clk.common.hw,
753 		[CLK_CCI400]		= &cci400_clk.common.hw,
754 		[CLK_NAND]		= &nand_clk.common.hw,
755 		[CLK_MMC0]		= &mmc0_clk.common.hw,
756 		[CLK_MMC0_SAMPLE]	= &mmc0_sample_clk.common.hw,
757 		[CLK_MMC0_OUTPUT]	= &mmc0_output_clk.common.hw,
758 		[CLK_MMC1]		= &mmc1_clk.common.hw,
759 		[CLK_MMC1_SAMPLE]	= &mmc1_sample_clk.common.hw,
760 		[CLK_MMC1_OUTPUT]	= &mmc1_output_clk.common.hw,
761 		[CLK_MMC2]		= &mmc2_clk.common.hw,
762 		[CLK_MMC2_SAMPLE]	= &mmc2_sample_clk.common.hw,
763 		[CLK_MMC2_OUTPUT]	= &mmc2_output_clk.common.hw,
764 		[CLK_SS]		= &ss_clk.common.hw,
765 		[CLK_SPI0]		= &spi0_clk.common.hw,
766 		[CLK_SPI1]		= &spi1_clk.common.hw,
767 		[CLK_I2S0]		= &i2s0_clk.common.hw,
768 		[CLK_I2S1]		= &i2s1_clk.common.hw,
769 		[CLK_I2S2]		= &i2s2_clk.common.hw,
770 		[CLK_TDM]		= &tdm_clk.common.hw,
771 		[CLK_SPDIF]		= &spdif_clk.common.hw,
772 		[CLK_USB_PHY0]		= &usb_phy0_clk.common.hw,
773 		[CLK_USB_PHY1]		= &usb_phy1_clk.common.hw,
774 		[CLK_USB_HSIC]		= &usb_hsic_clk.common.hw,
775 		[CLK_USB_HSIC_12M]	= &usb_hsic_12m_clk.common.hw,
776 		[CLK_USB_OHCI0]		= &usb_ohci0_clk.common.hw,
777 		[CLK_DRAM]		= &dram_clk.common.hw,
778 		[CLK_DRAM_VE]		= &dram_ve_clk.common.hw,
779 		[CLK_DRAM_CSI]		= &dram_csi_clk.common.hw,
780 		[CLK_TCON0]		= &tcon0_clk.common.hw,
781 		[CLK_TCON1]		= &tcon1_clk.common.hw,
782 		[CLK_CSI_MISC]		= &csi_misc_clk.common.hw,
783 		[CLK_MIPI_CSI]		= &mipi_csi_clk.common.hw,
784 		[CLK_CSI_MCLK]		= &csi_mclk_clk.common.hw,
785 		[CLK_CSI_SCLK]		= &csi_sclk_clk.common.hw,
786 		[CLK_VE]		= &ve_clk.common.hw,
787 		[CLK_AVS]		= &avs_clk.common.hw,
788 		[CLK_HDMI]		= &hdmi_clk.common.hw,
789 		[CLK_HDMI_SLOW]		= &hdmi_slow_clk.common.hw,
790 		[CLK_MBUS]		= &mbus_clk.common.hw,
791 		[CLK_MIPI_DSI0]		= &mipi_dsi0_clk.common.hw,
792 		[CLK_MIPI_DSI1]		= &mipi_dsi1_clk.common.hw,
793 		[CLK_GPU_CORE]		= &gpu_core_clk.common.hw,
794 		[CLK_GPU_MEMORY]	= &gpu_memory_clk.common.hw,
795 		[CLK_GPU_HYD]		= &gpu_hyd_clk.common.hw,
796 	},
797 	.num	= CLK_NUMBER,
798 };
799 
800 static struct ccu_reset_map sun8i_a83t_ccu_resets[] = {
801 	[RST_USB_PHY0]		= { 0x0cc, BIT(0) },
802 	[RST_USB_PHY1]		= { 0x0cc, BIT(1) },
803 	[RST_USB_HSIC]		= { 0x0cc, BIT(2) },
804 	[RST_DRAM]		= { 0x0f4, BIT(31) },
805 	[RST_MBUS]		= { 0x0fc, BIT(31) },
806 	[RST_BUS_MIPI_DSI]	= { 0x2c0, BIT(1) },
807 	[RST_BUS_SS]		= { 0x2c0, BIT(5) },
808 	[RST_BUS_DMA]		= { 0x2c0, BIT(6) },
809 	[RST_BUS_MMC0]		= { 0x2c0, BIT(8) },
810 	[RST_BUS_MMC1]		= { 0x2c0, BIT(9) },
811 	[RST_BUS_MMC2]		= { 0x2c0, BIT(10) },
812 	[RST_BUS_NAND]		= { 0x2c0, BIT(13) },
813 	[RST_BUS_DRAM]		= { 0x2c0, BIT(14) },
814 	[RST_BUS_EMAC]		= { 0x2c0, BIT(17) },
815 	[RST_BUS_HSTIMER]	= { 0x2c0, BIT(19) },
816 	[RST_BUS_SPI0]		= { 0x2c0, BIT(20) },
817 	[RST_BUS_SPI1]		= { 0x2c0, BIT(21) },
818 	[RST_BUS_OTG]		= { 0x2c0, BIT(24) },
819 	[RST_BUS_EHCI0]		= { 0x2c0, BIT(26) },
820 	[RST_BUS_EHCI1]		= { 0x2c0, BIT(27) },
821 	[RST_BUS_OHCI0]		= { 0x2c0, BIT(29) },
822 	[RST_BUS_VE]		= { 0x2c4, BIT(0) },
823 	[RST_BUS_TCON0]		= { 0x2c4, BIT(4) },
824 	[RST_BUS_TCON1]		= { 0x2c4, BIT(5) },
825 	[RST_BUS_CSI]		= { 0x2c4, BIT(8) },
826 	[RST_BUS_HDMI0]		= { 0x2c4, BIT(10) },
827 	[RST_BUS_HDMI1]		= { 0x2c4, BIT(11) },
828 	[RST_BUS_DE]		= { 0x2c4, BIT(12) },
829 	[RST_BUS_GPU]		= { 0x2c4, BIT(20) },
830 	[RST_BUS_MSGBOX]	= { 0x2c4, BIT(21) },
831 	[RST_BUS_SPINLOCK]	= { 0x2c4, BIT(22) },
832 	[RST_BUS_LVDS]		= { 0x2c8, BIT(0) },
833 	[RST_BUS_SPDIF]		= { 0x2d0, BIT(1) },
834 	[RST_BUS_I2S0]		= { 0x2d0, BIT(12) },
835 	[RST_BUS_I2S1]		= { 0x2d0, BIT(13) },
836 	[RST_BUS_I2S2]		= { 0x2d0, BIT(14) },
837 	[RST_BUS_TDM]		= { 0x2d0, BIT(15) },
838 	[RST_BUS_I2C0]		= { 0x2d8, BIT(0) },
839 	[RST_BUS_I2C1]		= { 0x2d8, BIT(1) },
840 	[RST_BUS_I2C2]		= { 0x2d8, BIT(2) },
841 	[RST_BUS_UART0]		= { 0x2d8, BIT(16) },
842 	[RST_BUS_UART1]		= { 0x2d8, BIT(17) },
843 	[RST_BUS_UART2]		= { 0x2d8, BIT(18) },
844 	[RST_BUS_UART3]		= { 0x2d8, BIT(19) },
845 	[RST_BUS_UART4]		= { 0x2d8, BIT(20) },
846 };
847 
848 static const struct sunxi_ccu_desc sun8i_a83t_ccu_desc = {
849 	.ccu_clks	= sun8i_a83t_ccu_clks,
850 	.num_ccu_clks	= ARRAY_SIZE(sun8i_a83t_ccu_clks),
851 
852 	.hw_clks	= &sun8i_a83t_hw_clks,
853 
854 	.resets		= sun8i_a83t_ccu_resets,
855 	.num_resets	= ARRAY_SIZE(sun8i_a83t_ccu_resets),
856 };
857 
858 #define SUN8I_A83T_PLL_P_SHIFT	16
859 #define SUN8I_A83T_PLL_N_SHIFT	8
860 #define SUN8I_A83T_PLL_N_WIDTH	8
861 
sun8i_a83t_cpu_pll_fixup(void __iomem * reg)862 static void sun8i_a83t_cpu_pll_fixup(void __iomem *reg)
863 {
864 	u32 val = readl(reg);
865 
866 	/* bail out if P divider is not used */
867 	if (!(val & BIT(SUN8I_A83T_PLL_P_SHIFT)))
868 		return;
869 
870 	/*
871 	 * If P is used, output should be less than 288 MHz. When we
872 	 * set P to 1, we should also decrease the multiplier so the
873 	 * output doesn't go out of range, but not too much such that
874 	 * the multiplier stays above 12, the minimal operation value.
875 	 *
876 	 * To keep it simple, set the multiplier to 17, the reset value.
877 	 */
878 	val &= ~GENMASK(SUN8I_A83T_PLL_N_SHIFT + SUN8I_A83T_PLL_N_WIDTH - 1,
879 			SUN8I_A83T_PLL_N_SHIFT);
880 	val |= 17 << SUN8I_A83T_PLL_N_SHIFT;
881 
882 	/* And clear P */
883 	val &= ~BIT(SUN8I_A83T_PLL_P_SHIFT);
884 
885 	writel(val, reg);
886 }
887 
sun8i_a83t_ccu_probe(struct platform_device * pdev)888 static int sun8i_a83t_ccu_probe(struct platform_device *pdev)
889 {
890 	void __iomem *reg;
891 	u32 val;
892 
893 	reg = devm_platform_ioremap_resource(pdev, 0);
894 	if (IS_ERR(reg))
895 		return PTR_ERR(reg);
896 
897 	/* Enforce d1 = 0, d2 = 1 for Audio PLL */
898 	val = readl(reg + SUN8I_A83T_PLL_AUDIO_REG);
899 	val &= ~BIT(16);
900 	val |= BIT(18);
901 	writel(val, reg + SUN8I_A83T_PLL_AUDIO_REG);
902 
903 	/* Enforce P = 1 for both CPU cluster PLLs */
904 	sun8i_a83t_cpu_pll_fixup(reg + SUN8I_A83T_PLL_C0CPUX_REG);
905 	sun8i_a83t_cpu_pll_fixup(reg + SUN8I_A83T_PLL_C1CPUX_REG);
906 
907 	return devm_sunxi_ccu_probe(&pdev->dev, reg, &sun8i_a83t_ccu_desc);
908 }
909 
910 static const struct of_device_id sun8i_a83t_ccu_ids[] = {
911 	{ .compatible = "allwinner,sun8i-a83t-ccu" },
912 	{ }
913 };
914 MODULE_DEVICE_TABLE(of, sun8i_a83t_ccu_ids);
915 
916 static struct platform_driver sun8i_a83t_ccu_driver = {
917 	.probe	= sun8i_a83t_ccu_probe,
918 	.driver	= {
919 		.name	= "sun8i-a83t-ccu",
920 		.suppress_bind_attrs = true,
921 		.of_match_table	= sun8i_a83t_ccu_ids,
922 	},
923 };
924 module_platform_driver(sun8i_a83t_ccu_driver);
925 
926 MODULE_IMPORT_NS(SUNXI_CCU);
927 MODULE_DESCRIPTION("Support for the Allwinner A83T CCU");
928 MODULE_LICENSE("GPL");
929