xref: /linux/drivers/clk/ux500/u8500_of_clk.c (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * Clock definitions for u8500 platform.
3  *
4  * Copyright (C) 2012 ST-Ericsson SA
5  * Author: Ulf Hansson <ulf.hansson@linaro.org>
6  *
7  * License terms: GNU General Public License (GPL) version 2
8  */
9 
10 #include <linux/of.h>
11 #include <linux/of_address.h>
12 #include <linux/clk-provider.h>
13 #include <linux/mfd/dbx500-prcmu.h>
14 #include <linux/platform_data/clk-ux500.h>
15 #include "clk.h"
16 
17 #define PRCC_NUM_PERIPH_CLUSTERS 6
18 #define PRCC_PERIPHS_PER_CLUSTER 32
19 
20 static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
21 static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
22 static struct clk *prcc_kclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
23 
24 #define PRCC_SHOW(clk, base, bit) \
25 	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
26 #define PRCC_PCLK_STORE(clk, base, bit)	\
27 	prcc_pclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
28 #define PRCC_KCLK_STORE(clk, base, bit)        \
29 	prcc_kclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
30 
31 static struct clk *ux500_twocell_get(struct of_phandle_args *clkspec,
32 				     void *data)
33 {
34 	struct clk **clk_data = data;
35 	unsigned int base, bit;
36 
37 	if (clkspec->args_count != 2)
38 		return  ERR_PTR(-EINVAL);
39 
40 	base = clkspec->args[0];
41 	bit = clkspec->args[1];
42 
43 	if (base != 1 && base != 2 && base != 3 && base != 5 && base != 6) {
44 		pr_err("%s: invalid PRCC base %d\n", __func__, base);
45 		return ERR_PTR(-EINVAL);
46 	}
47 
48 	return PRCC_SHOW(clk_data, base, bit);
49 }
50 
51 static const struct of_device_id u8500_clk_of_match[] = {
52 	{ .compatible = "stericsson,u8500-clks", },
53 	{ },
54 };
55 
56 /* CLKRST4 is missing making it hard to index things */
57 enum clkrst_index {
58 	CLKRST1_INDEX = 0,
59 	CLKRST2_INDEX,
60 	CLKRST3_INDEX,
61 	CLKRST5_INDEX,
62 	CLKRST6_INDEX,
63 	CLKRST_MAX,
64 };
65 
66 void u8500_clk_init(void)
67 {
68 	struct prcmu_fw_version *fw_version;
69 	struct device_node *np = NULL;
70 	struct device_node *child = NULL;
71 	const char *sgaclk_parent = NULL;
72 	struct clk *clk, *rtc_clk, *twd_clk;
73 	u32 bases[CLKRST_MAX];
74 	int i;
75 
76 	if (of_have_populated_dt())
77 		np = of_find_matching_node(NULL, u8500_clk_of_match);
78 	if (!np) {
79 		pr_err("Either DT or U8500 Clock node not found\n");
80 		return;
81 	}
82 	for (i = 0; i < ARRAY_SIZE(bases); i++) {
83 		struct resource r;
84 
85 		if (of_address_to_resource(np, i, &r))
86 			/* Not much choice but to continue */
87 			pr_err("failed to get CLKRST %d base address\n",
88 			       i + 1);
89 		bases[i] = r.start;
90 	}
91 
92 	/* Clock sources */
93 	clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
94 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
95 	prcmu_clk[PRCMU_PLLSOC0] = clk;
96 
97 	clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
98 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
99 	prcmu_clk[PRCMU_PLLSOC1] = clk;
100 
101 	clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
102 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
103 	prcmu_clk[PRCMU_PLLDDR] = clk;
104 
105 	/* FIXME: Add sys, ulp and int clocks here. */
106 
107 	rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
108 				CLK_IS_ROOT|CLK_IGNORE_UNUSED,
109 				32768);
110 
111 	/* PRCMU clocks */
112 	fw_version = prcmu_get_fw_version();
113 	if (fw_version != NULL) {
114 		switch (fw_version->project) {
115 		case PRCMU_FW_PROJECT_U8500_C2:
116 		case PRCMU_FW_PROJECT_U8520:
117 		case PRCMU_FW_PROJECT_U8420:
118 			sgaclk_parent = "soc0_pll";
119 			break;
120 		default:
121 			break;
122 		}
123 	}
124 
125 	if (sgaclk_parent)
126 		clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent,
127 					PRCMU_SGACLK, 0);
128 	else
129 		clk = clk_reg_prcmu_gate("sgclk", NULL,
130 					PRCMU_SGACLK, CLK_IS_ROOT);
131 	prcmu_clk[PRCMU_SGACLK] = clk;
132 
133 	clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
134 	prcmu_clk[PRCMU_UARTCLK] = clk;
135 
136 	clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
137 	prcmu_clk[PRCMU_MSP02CLK] = clk;
138 
139 	clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
140 	prcmu_clk[PRCMU_MSP1CLK] = clk;
141 
142 	clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
143 	prcmu_clk[PRCMU_I2CCLK] = clk;
144 
145 	clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
146 	prcmu_clk[PRCMU_SLIMCLK] = clk;
147 
148 	clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
149 	prcmu_clk[PRCMU_PER1CLK] = clk;
150 
151 	clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
152 	prcmu_clk[PRCMU_PER2CLK] = clk;
153 
154 	clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
155 	prcmu_clk[PRCMU_PER3CLK] = clk;
156 
157 	clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
158 	prcmu_clk[PRCMU_PER5CLK] = clk;
159 
160 	clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
161 	prcmu_clk[PRCMU_PER6CLK] = clk;
162 
163 	clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
164 	prcmu_clk[PRCMU_PER7CLK] = clk;
165 
166 	clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
167 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
168 	prcmu_clk[PRCMU_LCDCLK] = clk;
169 
170 	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
171 	prcmu_clk[PRCMU_BMLCLK] = clk;
172 
173 	clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
174 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
175 	prcmu_clk[PRCMU_HSITXCLK] = clk;
176 
177 	clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
178 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
179 	prcmu_clk[PRCMU_HSIRXCLK] = clk;
180 
181 	clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
182 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
183 	prcmu_clk[PRCMU_HDMICLK] = clk;
184 
185 	clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
186 	prcmu_clk[PRCMU_APEATCLK] = clk;
187 
188 	clk = clk_reg_prcmu_scalable("apetraceclk", NULL, PRCMU_APETRACECLK, 0,
189 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
190 	prcmu_clk[PRCMU_APETRACECLK] = clk;
191 
192 	clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
193 	prcmu_clk[PRCMU_MCDECLK] = clk;
194 
195 	clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
196 				CLK_IS_ROOT);
197 	prcmu_clk[PRCMU_IPI2CCLK] = clk;
198 
199 	clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
200 				CLK_IS_ROOT);
201 	prcmu_clk[PRCMU_DSIALTCLK] = clk;
202 
203 	clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
204 	prcmu_clk[PRCMU_DMACLK] = clk;
205 
206 	clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
207 	prcmu_clk[PRCMU_B2R2CLK] = clk;
208 
209 	clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
210 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
211 	prcmu_clk[PRCMU_TVCLK] = clk;
212 
213 	clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
214 	prcmu_clk[PRCMU_SSPCLK] = clk;
215 
216 	clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
217 	prcmu_clk[PRCMU_RNGCLK] = clk;
218 
219 	clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
220 	prcmu_clk[PRCMU_UICCCLK] = clk;
221 
222 	clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
223 	prcmu_clk[PRCMU_TIMCLK] = clk;
224 
225 	clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
226 					100000000,
227 					CLK_IS_ROOT|CLK_SET_RATE_GATE);
228 	prcmu_clk[PRCMU_SDMMCCLK] = clk;
229 
230 	clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
231 				PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
232 	prcmu_clk[PRCMU_PLLDSI] = clk;
233 
234 	clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
235 				PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
236 	prcmu_clk[PRCMU_DSI0CLK] = clk;
237 
238 	clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
239 				PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
240 	prcmu_clk[PRCMU_DSI1CLK] = clk;
241 
242 	clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
243 				PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
244 	prcmu_clk[PRCMU_DSI0ESCCLK] = clk;
245 
246 	clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
247 				PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
248 	prcmu_clk[PRCMU_DSI1ESCCLK] = clk;
249 
250 	clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
251 				PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
252 	prcmu_clk[PRCMU_DSI2ESCCLK] = clk;
253 
254 	clk = clk_reg_prcmu_scalable_rate("armss", NULL,
255 				PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
256 	prcmu_clk[PRCMU_ARMSS] = clk;
257 
258 	twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
259 				CLK_IGNORE_UNUSED, 1, 2);
260 
261 	/*
262 	 * FIXME: Add special handled PRCMU clocks here:
263 	 * 1. clkout0yuv, use PRCMU as parent + need regulator + pinctrl.
264 	 * 2. ab9540_clkout1yuv, see clkout0yuv
265 	 */
266 
267 	/* PRCC P-clocks */
268 	clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", bases[CLKRST1_INDEX],
269 				BIT(0), 0);
270 	PRCC_PCLK_STORE(clk, 1, 0);
271 
272 	clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", bases[CLKRST1_INDEX],
273 				BIT(1), 0);
274 	PRCC_PCLK_STORE(clk, 1, 1);
275 
276 	clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", bases[CLKRST1_INDEX],
277 				BIT(2), 0);
278 	PRCC_PCLK_STORE(clk, 1, 2);
279 
280 	clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", bases[CLKRST1_INDEX],
281 				BIT(3), 0);
282 	PRCC_PCLK_STORE(clk, 1, 3);
283 
284 	clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", bases[CLKRST1_INDEX],
285 				BIT(4), 0);
286 	PRCC_PCLK_STORE(clk, 1, 4);
287 
288 	clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", bases[CLKRST1_INDEX],
289 				BIT(5), 0);
290 	PRCC_PCLK_STORE(clk, 1, 5);
291 
292 	clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", bases[CLKRST1_INDEX],
293 				BIT(6), 0);
294 	PRCC_PCLK_STORE(clk, 1, 6);
295 
296 	clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", bases[CLKRST1_INDEX],
297 				BIT(7), 0);
298 	PRCC_PCLK_STORE(clk, 1, 7);
299 
300 	clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", bases[CLKRST1_INDEX],
301 				BIT(8), 0);
302 	PRCC_PCLK_STORE(clk, 1, 8);
303 
304 	clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", bases[CLKRST1_INDEX],
305 				BIT(9), 0);
306 	PRCC_PCLK_STORE(clk, 1, 9);
307 
308 	clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", bases[CLKRST1_INDEX],
309 				BIT(10), 0);
310 	PRCC_PCLK_STORE(clk, 1, 10);
311 
312 	clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", bases[CLKRST1_INDEX],
313 				BIT(11), 0);
314 	PRCC_PCLK_STORE(clk, 1, 11);
315 
316 	clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", bases[CLKRST2_INDEX],
317 				BIT(0), 0);
318 	PRCC_PCLK_STORE(clk, 2, 0);
319 
320 	clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", bases[CLKRST2_INDEX],
321 				BIT(1), 0);
322 	PRCC_PCLK_STORE(clk, 2, 1);
323 
324 	clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", bases[CLKRST2_INDEX],
325 				BIT(2), 0);
326 	PRCC_PCLK_STORE(clk, 2, 2);
327 
328 	clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", bases[CLKRST2_INDEX],
329 				BIT(3), 0);
330 	PRCC_PCLK_STORE(clk, 2, 3);
331 
332 	clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", bases[CLKRST2_INDEX],
333 				BIT(4), 0);
334 	PRCC_PCLK_STORE(clk, 2, 4);
335 
336 	clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", bases[CLKRST2_INDEX],
337 				BIT(5), 0);
338 	PRCC_PCLK_STORE(clk, 2, 5);
339 
340 	clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", bases[CLKRST2_INDEX],
341 				BIT(6), 0);
342 	PRCC_PCLK_STORE(clk, 2, 6);
343 
344 	clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", bases[CLKRST2_INDEX],
345 				BIT(7), 0);
346 	PRCC_PCLK_STORE(clk, 2, 7);
347 
348 	clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", bases[CLKRST2_INDEX],
349 				BIT(8), 0);
350 	PRCC_PCLK_STORE(clk, 2, 8);
351 
352 	clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", bases[CLKRST2_INDEX],
353 				BIT(9), 0);
354 	PRCC_PCLK_STORE(clk, 2, 9);
355 
356 	clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", bases[CLKRST2_INDEX],
357 				BIT(10), 0);
358 	PRCC_PCLK_STORE(clk, 2, 10);
359 
360 	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", bases[CLKRST2_INDEX],
361 				BIT(11), 0);
362 	PRCC_PCLK_STORE(clk, 2, 11);
363 
364 	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", bases[CLKRST2_INDEX],
365 				BIT(12), 0);
366 	PRCC_PCLK_STORE(clk, 2, 12);
367 
368 	clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", bases[CLKRST3_INDEX],
369 				BIT(0), 0);
370 	PRCC_PCLK_STORE(clk, 3, 0);
371 
372 	clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", bases[CLKRST3_INDEX],
373 				BIT(1), 0);
374 	PRCC_PCLK_STORE(clk, 3, 1);
375 
376 	clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", bases[CLKRST3_INDEX],
377 				BIT(2), 0);
378 	PRCC_PCLK_STORE(clk, 3, 2);
379 
380 	clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", bases[CLKRST3_INDEX],
381 				BIT(3), 0);
382 	PRCC_PCLK_STORE(clk, 3, 3);
383 
384 	clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", bases[CLKRST3_INDEX],
385 				BIT(4), 0);
386 	PRCC_PCLK_STORE(clk, 3, 4);
387 
388 	clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", bases[CLKRST3_INDEX],
389 				BIT(5), 0);
390 	PRCC_PCLK_STORE(clk, 3, 5);
391 
392 	clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", bases[CLKRST3_INDEX],
393 				BIT(6), 0);
394 	PRCC_PCLK_STORE(clk, 3, 6);
395 
396 	clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", bases[CLKRST3_INDEX],
397 				BIT(7), 0);
398 	PRCC_PCLK_STORE(clk, 3, 7);
399 
400 	clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", bases[CLKRST3_INDEX],
401 				BIT(8), 0);
402 	PRCC_PCLK_STORE(clk, 3, 8);
403 
404 	clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", bases[CLKRST5_INDEX],
405 				BIT(0), 0);
406 	PRCC_PCLK_STORE(clk, 5, 0);
407 
408 	clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", bases[CLKRST5_INDEX],
409 				BIT(1), 0);
410 	PRCC_PCLK_STORE(clk, 5, 1);
411 
412 	clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", bases[CLKRST6_INDEX],
413 				BIT(0), 0);
414 	PRCC_PCLK_STORE(clk, 6, 0);
415 
416 	clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", bases[CLKRST6_INDEX],
417 				BIT(1), 0);
418 	PRCC_PCLK_STORE(clk, 6, 1);
419 
420 	clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", bases[CLKRST6_INDEX],
421 				BIT(2), 0);
422 	PRCC_PCLK_STORE(clk, 6, 2);
423 
424 	clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", bases[CLKRST6_INDEX],
425 				BIT(3), 0);
426 	PRCC_PCLK_STORE(clk, 6, 3);
427 
428 	clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", bases[CLKRST6_INDEX],
429 				BIT(4), 0);
430 	PRCC_PCLK_STORE(clk, 6, 4);
431 
432 	clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", bases[CLKRST6_INDEX],
433 				BIT(5), 0);
434 	PRCC_PCLK_STORE(clk, 6, 5);
435 
436 	clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", bases[CLKRST6_INDEX],
437 				BIT(6), 0);
438 	PRCC_PCLK_STORE(clk, 6, 6);
439 
440 	clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", bases[CLKRST6_INDEX],
441 				BIT(7), 0);
442 	PRCC_PCLK_STORE(clk, 6, 7);
443 
444 	/* PRCC K-clocks
445 	 *
446 	 * FIXME: Some drivers requires PERPIH[n| to be automatically enabled
447 	 * by enabling just the K-clock, even if it is not a valid parent to
448 	 * the K-clock. Until drivers get fixed we might need some kind of
449 	 * "parent muxed join".
450 	 */
451 
452 	/* Periph1 */
453 	clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
454 			bases[CLKRST1_INDEX], BIT(0), CLK_SET_RATE_GATE);
455 	PRCC_KCLK_STORE(clk, 1, 0);
456 
457 	clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
458 			bases[CLKRST1_INDEX], BIT(1), CLK_SET_RATE_GATE);
459 	PRCC_KCLK_STORE(clk, 1, 1);
460 
461 	clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
462 			bases[CLKRST1_INDEX], BIT(2), CLK_SET_RATE_GATE);
463 	PRCC_KCLK_STORE(clk, 1, 2);
464 
465 	clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
466 			bases[CLKRST1_INDEX], BIT(3), CLK_SET_RATE_GATE);
467 	PRCC_KCLK_STORE(clk, 1, 3);
468 
469 	clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
470 			bases[CLKRST1_INDEX], BIT(4), CLK_SET_RATE_GATE);
471 	PRCC_KCLK_STORE(clk, 1, 4);
472 
473 	clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
474 			bases[CLKRST1_INDEX], BIT(5), CLK_SET_RATE_GATE);
475 	PRCC_KCLK_STORE(clk, 1, 5);
476 
477 	clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
478 			bases[CLKRST1_INDEX], BIT(6), CLK_SET_RATE_GATE);
479 	PRCC_KCLK_STORE(clk, 1, 6);
480 
481 	clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
482 			bases[CLKRST1_INDEX], BIT(8), CLK_SET_RATE_GATE);
483 	PRCC_KCLK_STORE(clk, 1, 8);
484 
485 	clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
486 			bases[CLKRST1_INDEX], BIT(9), CLK_SET_RATE_GATE);
487 	PRCC_KCLK_STORE(clk, 1, 9);
488 
489 	clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
490 			bases[CLKRST1_INDEX], BIT(10), CLK_SET_RATE_GATE);
491 	PRCC_KCLK_STORE(clk, 1, 10);
492 
493 	/* Periph2 */
494 	clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
495 			bases[CLKRST2_INDEX], BIT(0), CLK_SET_RATE_GATE);
496 	PRCC_KCLK_STORE(clk, 2, 0);
497 
498 	clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
499 			bases[CLKRST2_INDEX], BIT(2), CLK_SET_RATE_GATE);
500 	PRCC_KCLK_STORE(clk, 2, 2);
501 
502 	clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
503 			bases[CLKRST2_INDEX], BIT(3), CLK_SET_RATE_GATE);
504 	PRCC_KCLK_STORE(clk, 2, 3);
505 
506 	clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
507 			bases[CLKRST2_INDEX], BIT(4), CLK_SET_RATE_GATE);
508 	PRCC_KCLK_STORE(clk, 2, 4);
509 
510 	clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
511 			bases[CLKRST2_INDEX], BIT(5), CLK_SET_RATE_GATE);
512 	PRCC_KCLK_STORE(clk, 2, 5);
513 
514 	/* Note that rate is received from parent. */
515 	clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
516 			bases[CLKRST2_INDEX], BIT(6),
517 			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
518 	PRCC_KCLK_STORE(clk, 2, 6);
519 
520 	clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
521 			bases[CLKRST2_INDEX], BIT(7),
522 			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
523 	PRCC_KCLK_STORE(clk, 2, 7);
524 
525 	/* Periph3 */
526 	clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
527 			bases[CLKRST3_INDEX], BIT(1), CLK_SET_RATE_GATE);
528 	PRCC_KCLK_STORE(clk, 3, 1);
529 
530 	clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
531 			bases[CLKRST3_INDEX], BIT(2), CLK_SET_RATE_GATE);
532 	PRCC_KCLK_STORE(clk, 3, 2);
533 
534 	clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
535 			bases[CLKRST3_INDEX], BIT(3), CLK_SET_RATE_GATE);
536 	PRCC_KCLK_STORE(clk, 3, 3);
537 
538 	clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
539 			bases[CLKRST3_INDEX], BIT(4), CLK_SET_RATE_GATE);
540 	PRCC_KCLK_STORE(clk, 3, 4);
541 
542 	clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
543 			bases[CLKRST3_INDEX], BIT(5), CLK_SET_RATE_GATE);
544 	PRCC_KCLK_STORE(clk, 3, 5);
545 
546 	clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
547 			bases[CLKRST3_INDEX], BIT(6), CLK_SET_RATE_GATE);
548 	PRCC_KCLK_STORE(clk, 3, 6);
549 
550 	clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
551 			bases[CLKRST3_INDEX], BIT(7), CLK_SET_RATE_GATE);
552 	PRCC_KCLK_STORE(clk, 3, 7);
553 
554 	/* Periph6 */
555 	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
556 			bases[CLKRST6_INDEX], BIT(0), CLK_SET_RATE_GATE);
557 	PRCC_KCLK_STORE(clk, 6, 0);
558 
559 	for_each_child_of_node(np, child) {
560 		static struct clk_onecell_data clk_data;
561 
562 		if (!of_node_cmp(child->name, "prcmu-clock")) {
563 			clk_data.clks = prcmu_clk;
564 			clk_data.clk_num = ARRAY_SIZE(prcmu_clk);
565 			of_clk_add_provider(child, of_clk_src_onecell_get, &clk_data);
566 		}
567 		if (!of_node_cmp(child->name, "prcc-periph-clock"))
568 			of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
569 
570 		if (!of_node_cmp(child->name, "prcc-kernel-clock"))
571 			of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
572 
573 		if (!of_node_cmp(child->name, "rtc32k-clock"))
574 			of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
575 
576 		if (!of_node_cmp(child->name, "smp-twd-clock"))
577 			of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
578 	}
579 }
580