1 /*
2 * Copyright (C) 2013 Broadcom Corporation
3 * Copyright 2013 Linaro Limited
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License as
7 * published by the Free Software Foundation version 2.
8 *
9 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
10 * kind, whether express or implied; without even the implied warranty
11 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14
15 #include "clk-kona.h"
16 #include "dt-bindings/clock/bcm281xx.h"
17
18 #define BCM281XX_CCU_COMMON(_name, _ucase_name) \
19 KONA_CCU_COMMON(BCM281XX, _name, _ucase_name)
20
21 /* Root CCU */
22
23 static struct peri_clk_data frac_1m_data = {
24 .gate = HW_SW_GATE(0x214, 16, 0, 1),
25 .trig = TRIGGER(0x0e04, 0),
26 .div = FRAC_DIVIDER(0x0e00, 0, 22, 16),
27 .clocks = CLOCKS("ref_crystal"),
28 };
29
30 static struct ccu_data root_ccu_data = {
31 BCM281XX_CCU_COMMON(root, ROOT),
32 .kona_clks = {
33 [BCM281XX_ROOT_CCU_FRAC_1M] =
34 KONA_CLK(root, frac_1m, peri),
35 [BCM281XX_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
36 },
37 };
38
39 /* AON CCU */
40
41 static struct peri_clk_data hub_timer_data = {
42 .gate = HW_SW_GATE(0x0414, 16, 0, 1),
43 .clocks = CLOCKS("bbl_32k",
44 "frac_1m",
45 "dft_19_5m"),
46 .sel = SELECTOR(0x0a10, 0, 2),
47 .trig = TRIGGER(0x0a40, 4),
48 };
49
50 static struct peri_clk_data pmu_bsc_data = {
51 .gate = HW_SW_GATE(0x0418, 16, 0, 1),
52 .clocks = CLOCKS("ref_crystal",
53 "pmu_bsc_var",
54 "bbl_32k"),
55 .sel = SELECTOR(0x0a04, 0, 2),
56 .div = DIVIDER(0x0a04, 3, 4),
57 .trig = TRIGGER(0x0a40, 0),
58 };
59
60 static struct peri_clk_data pmu_bsc_var_data = {
61 .clocks = CLOCKS("var_312m",
62 "ref_312m"),
63 .sel = SELECTOR(0x0a00, 0, 2),
64 .div = DIVIDER(0x0a00, 4, 5),
65 .trig = TRIGGER(0x0a40, 2),
66 };
67
68 static struct ccu_data aon_ccu_data = {
69 BCM281XX_CCU_COMMON(aon, AON),
70 .kona_clks = {
71 [BCM281XX_AON_CCU_HUB_TIMER] =
72 KONA_CLK(aon, hub_timer, peri),
73 [BCM281XX_AON_CCU_PMU_BSC] =
74 KONA_CLK(aon, pmu_bsc, peri),
75 [BCM281XX_AON_CCU_PMU_BSC_VAR] =
76 KONA_CLK(aon, pmu_bsc_var, peri),
77 [BCM281XX_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
78 },
79 };
80
81 /* Hub CCU */
82
83 static struct peri_clk_data tmon_1m_data = {
84 .gate = HW_SW_GATE(0x04a4, 18, 2, 3),
85 .clocks = CLOCKS("ref_crystal",
86 "frac_1m"),
87 .sel = SELECTOR(0x0e74, 0, 2),
88 .trig = TRIGGER(0x0e84, 1),
89 };
90
91 static struct ccu_data hub_ccu_data = {
92 BCM281XX_CCU_COMMON(hub, HUB),
93 .kona_clks = {
94 [BCM281XX_HUB_CCU_TMON_1M] =
95 KONA_CLK(hub, tmon_1m, peri),
96 [BCM281XX_HUB_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
97 },
98 };
99
100 /* Master CCU */
101
102 static struct peri_clk_data sdio1_data = {
103 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
104 .clocks = CLOCKS("ref_crystal",
105 "var_52m",
106 "ref_52m",
107 "var_96m",
108 "ref_96m"),
109 .sel = SELECTOR(0x0a28, 0, 3),
110 .div = DIVIDER(0x0a28, 4, 14),
111 .trig = TRIGGER(0x0afc, 9),
112 };
113
114 static struct peri_clk_data sdio2_data = {
115 .gate = HW_SW_GATE(0x035c, 18, 2, 3),
116 .clocks = CLOCKS("ref_crystal",
117 "var_52m",
118 "ref_52m",
119 "var_96m",
120 "ref_96m"),
121 .sel = SELECTOR(0x0a2c, 0, 3),
122 .div = DIVIDER(0x0a2c, 4, 14),
123 .trig = TRIGGER(0x0afc, 10),
124 };
125
126 static struct peri_clk_data sdio3_data = {
127 .gate = HW_SW_GATE(0x0364, 18, 2, 3),
128 .clocks = CLOCKS("ref_crystal",
129 "var_52m",
130 "ref_52m",
131 "var_96m",
132 "ref_96m"),
133 .sel = SELECTOR(0x0a34, 0, 3),
134 .div = DIVIDER(0x0a34, 4, 14),
135 .trig = TRIGGER(0x0afc, 12),
136 };
137
138 static struct peri_clk_data sdio4_data = {
139 .gate = HW_SW_GATE(0x0360, 18, 2, 3),
140 .clocks = CLOCKS("ref_crystal",
141 "var_52m",
142 "ref_52m",
143 "var_96m",
144 "ref_96m"),
145 .sel = SELECTOR(0x0a30, 0, 3),
146 .div = DIVIDER(0x0a30, 4, 14),
147 .trig = TRIGGER(0x0afc, 11),
148 };
149
150 static struct peri_clk_data usb_ic_data = {
151 .gate = HW_SW_GATE(0x0354, 18, 2, 3),
152 .clocks = CLOCKS("ref_crystal",
153 "var_96m",
154 "ref_96m"),
155 .div = FIXED_DIVIDER(2),
156 .sel = SELECTOR(0x0a24, 0, 2),
157 .trig = TRIGGER(0x0afc, 7),
158 };
159
160 /* also called usbh_48m */
161 static struct peri_clk_data hsic2_48m_data = {
162 .gate = HW_SW_GATE(0x0370, 18, 2, 3),
163 .clocks = CLOCKS("ref_crystal",
164 "var_96m",
165 "ref_96m"),
166 .sel = SELECTOR(0x0a38, 0, 2),
167 .div = FIXED_DIVIDER(2),
168 .trig = TRIGGER(0x0afc, 5),
169 };
170
171 /* also called usbh_12m */
172 static struct peri_clk_data hsic2_12m_data = {
173 .gate = HW_SW_GATE(0x0370, 20, 4, 5),
174 .div = DIVIDER(0x0a38, 12, 2),
175 .clocks = CLOCKS("ref_crystal",
176 "var_96m",
177 "ref_96m"),
178 .pre_div = FIXED_DIVIDER(2),
179 .sel = SELECTOR(0x0a38, 0, 2),
180 .trig = TRIGGER(0x0afc, 5),
181 };
182
183 static struct ccu_data master_ccu_data = {
184 BCM281XX_CCU_COMMON(master, MASTER),
185 .kona_clks = {
186 [BCM281XX_MASTER_CCU_SDIO1] =
187 KONA_CLK(master, sdio1, peri),
188 [BCM281XX_MASTER_CCU_SDIO2] =
189 KONA_CLK(master, sdio2, peri),
190 [BCM281XX_MASTER_CCU_SDIO3] =
191 KONA_CLK(master, sdio3, peri),
192 [BCM281XX_MASTER_CCU_SDIO4] =
193 KONA_CLK(master, sdio4, peri),
194 [BCM281XX_MASTER_CCU_USB_IC] =
195 KONA_CLK(master, usb_ic, peri),
196 [BCM281XX_MASTER_CCU_HSIC2_48M] =
197 KONA_CLK(master, hsic2_48m, peri),
198 [BCM281XX_MASTER_CCU_HSIC2_12M] =
199 KONA_CLK(master, hsic2_12m, peri),
200 [BCM281XX_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
201 },
202 };
203
204 /* Slave CCU */
205
206 static struct peri_clk_data uartb_data = {
207 .gate = HW_SW_GATE(0x0400, 18, 2, 3),
208 .clocks = CLOCKS("ref_crystal",
209 "var_156m",
210 "ref_156m"),
211 .sel = SELECTOR(0x0a10, 0, 2),
212 .div = FRAC_DIVIDER(0x0a10, 4, 12, 8),
213 .trig = TRIGGER(0x0afc, 2),
214 };
215
216 static struct peri_clk_data uartb2_data = {
217 .gate = HW_SW_GATE(0x0404, 18, 2, 3),
218 .clocks = CLOCKS("ref_crystal",
219 "var_156m",
220 "ref_156m"),
221 .sel = SELECTOR(0x0a14, 0, 2),
222 .div = FRAC_DIVIDER(0x0a14, 4, 12, 8),
223 .trig = TRIGGER(0x0afc, 3),
224 };
225
226 static struct peri_clk_data uartb3_data = {
227 .gate = HW_SW_GATE(0x0408, 18, 2, 3),
228 .clocks = CLOCKS("ref_crystal",
229 "var_156m",
230 "ref_156m"),
231 .sel = SELECTOR(0x0a18, 0, 2),
232 .div = FRAC_DIVIDER(0x0a18, 4, 12, 8),
233 .trig = TRIGGER(0x0afc, 4),
234 };
235
236 static struct peri_clk_data uartb4_data = {
237 .gate = HW_SW_GATE(0x0408, 18, 2, 3),
238 .clocks = CLOCKS("ref_crystal",
239 "var_156m",
240 "ref_156m"),
241 .sel = SELECTOR(0x0a1c, 0, 2),
242 .div = FRAC_DIVIDER(0x0a1c, 4, 12, 8),
243 .trig = TRIGGER(0x0afc, 5),
244 };
245
246 static struct peri_clk_data ssp0_data = {
247 .gate = HW_SW_GATE(0x0410, 18, 2, 3),
248 .clocks = CLOCKS("ref_crystal",
249 "var_104m",
250 "ref_104m",
251 "var_96m",
252 "ref_96m"),
253 .sel = SELECTOR(0x0a20, 0, 3),
254 .div = DIVIDER(0x0a20, 4, 14),
255 .trig = TRIGGER(0x0afc, 6),
256 };
257
258 static struct peri_clk_data ssp2_data = {
259 .gate = HW_SW_GATE(0x0418, 18, 2, 3),
260 .clocks = CLOCKS("ref_crystal",
261 "var_104m",
262 "ref_104m",
263 "var_96m",
264 "ref_96m"),
265 .sel = SELECTOR(0x0a28, 0, 3),
266 .div = DIVIDER(0x0a28, 4, 14),
267 .trig = TRIGGER(0x0afc, 8),
268 };
269
270 static struct peri_clk_data bsc1_data = {
271 .gate = HW_SW_GATE(0x0458, 18, 2, 3),
272 .clocks = CLOCKS("ref_crystal",
273 "var_104m",
274 "ref_104m",
275 "var_13m",
276 "ref_13m"),
277 .sel = SELECTOR(0x0a64, 0, 3),
278 .trig = TRIGGER(0x0afc, 23),
279 };
280
281 static struct peri_clk_data bsc2_data = {
282 .gate = HW_SW_GATE(0x045c, 18, 2, 3),
283 .clocks = CLOCKS("ref_crystal",
284 "var_104m",
285 "ref_104m",
286 "var_13m",
287 "ref_13m"),
288 .sel = SELECTOR(0x0a68, 0, 3),
289 .trig = TRIGGER(0x0afc, 24),
290 };
291
292 static struct peri_clk_data bsc3_data = {
293 .gate = HW_SW_GATE(0x0484, 18, 2, 3),
294 .clocks = CLOCKS("ref_crystal",
295 "var_104m",
296 "ref_104m",
297 "var_13m",
298 "ref_13m"),
299 .sel = SELECTOR(0x0a84, 0, 3),
300 .trig = TRIGGER(0x0b00, 2),
301 };
302
303 static struct peri_clk_data pwm_data = {
304 .gate = HW_SW_GATE(0x0468, 18, 2, 3),
305 .clocks = CLOCKS("ref_crystal",
306 "var_104m"),
307 .sel = SELECTOR(0x0a70, 0, 2),
308 .div = DIVIDER(0x0a70, 4, 3),
309 .trig = TRIGGER(0x0afc, 15),
310 };
311
312 static struct ccu_data slave_ccu_data = {
313 BCM281XX_CCU_COMMON(slave, SLAVE),
314 .kona_clks = {
315 [BCM281XX_SLAVE_CCU_UARTB] =
316 KONA_CLK(slave, uartb, peri),
317 [BCM281XX_SLAVE_CCU_UARTB2] =
318 KONA_CLK(slave, uartb2, peri),
319 [BCM281XX_SLAVE_CCU_UARTB3] =
320 KONA_CLK(slave, uartb3, peri),
321 [BCM281XX_SLAVE_CCU_UARTB4] =
322 KONA_CLK(slave, uartb4, peri),
323 [BCM281XX_SLAVE_CCU_SSP0] =
324 KONA_CLK(slave, ssp0, peri),
325 [BCM281XX_SLAVE_CCU_SSP2] =
326 KONA_CLK(slave, ssp2, peri),
327 [BCM281XX_SLAVE_CCU_BSC1] =
328 KONA_CLK(slave, bsc1, peri),
329 [BCM281XX_SLAVE_CCU_BSC2] =
330 KONA_CLK(slave, bsc2, peri),
331 [BCM281XX_SLAVE_CCU_BSC3] =
332 KONA_CLK(slave, bsc3, peri),
333 [BCM281XX_SLAVE_CCU_PWM] =
334 KONA_CLK(slave, pwm, peri),
335 [BCM281XX_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
336 },
337 };
338
339 /* Device tree match table callback functions */
340
kona_dt_root_ccu_setup(struct device_node * node)341 static void __init kona_dt_root_ccu_setup(struct device_node *node)
342 {
343 kona_dt_ccu_setup(&root_ccu_data, node);
344 }
345
kona_dt_aon_ccu_setup(struct device_node * node)346 static void __init kona_dt_aon_ccu_setup(struct device_node *node)
347 {
348 kona_dt_ccu_setup(&aon_ccu_data, node);
349 }
350
kona_dt_hub_ccu_setup(struct device_node * node)351 static void __init kona_dt_hub_ccu_setup(struct device_node *node)
352 {
353 kona_dt_ccu_setup(&hub_ccu_data, node);
354 }
355
kona_dt_master_ccu_setup(struct device_node * node)356 static void __init kona_dt_master_ccu_setup(struct device_node *node)
357 {
358 kona_dt_ccu_setup(&master_ccu_data, node);
359 }
360
kona_dt_slave_ccu_setup(struct device_node * node)361 static void __init kona_dt_slave_ccu_setup(struct device_node *node)
362 {
363 kona_dt_ccu_setup(&slave_ccu_data, node);
364 }
365
366 CLK_OF_DECLARE(bcm281xx_root_ccu, BCM281XX_DT_ROOT_CCU_COMPAT,
367 kona_dt_root_ccu_setup);
368 CLK_OF_DECLARE(bcm281xx_aon_ccu, BCM281XX_DT_AON_CCU_COMPAT,
369 kona_dt_aon_ccu_setup);
370 CLK_OF_DECLARE(bcm281xx_hub_ccu, BCM281XX_DT_HUB_CCU_COMPAT,
371 kona_dt_hub_ccu_setup);
372 CLK_OF_DECLARE(bcm281xx_master_ccu, BCM281XX_DT_MASTER_CCU_COMPAT,
373 kona_dt_master_ccu_setup);
374 CLK_OF_DECLARE(bcm281xx_slave_ccu, BCM281XX_DT_SLAVE_CCU_COMPAT,
375 kona_dt_slave_ccu_setup);
376