1 /*
2 * Copyright (C) 2014 Broadcom Corporation
3 * Copyright 2014 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/bcm21664.h"
17
18 #define BCM21664_CCU_COMMON(_name, _capname) \
19 KONA_CCU_COMMON(BCM21664, _name, _capname)
20
21 /* Root CCU */
22
23 static struct peri_clk_data frac_1m_data = {
24 .gate = HW_SW_GATE(0x214, 16, 0, 1),
25 .clocks = CLOCKS("ref_crystal"),
26 };
27
28 static struct ccu_data root_ccu_data = {
29 BCM21664_CCU_COMMON(root, ROOT),
30 /* no policy control */
31 .kona_clks = {
32 [BCM21664_ROOT_CCU_FRAC_1M] =
33 KONA_CLK(root, frac_1m, peri),
34 [BCM21664_ROOT_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
35 },
36 };
37
38 /* AON CCU */
39
40 static struct peri_clk_data hub_timer_data = {
41 .gate = HW_SW_GATE(0x0414, 16, 0, 1),
42 .hyst = HYST(0x0414, 8, 9),
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 ccu_data aon_ccu_data = {
51 BCM21664_CCU_COMMON(aon, AON),
52 .policy = {
53 .enable = CCU_LVM_EN(0x0034, 0),
54 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
55 },
56 .kona_clks = {
57 [BCM21664_AON_CCU_HUB_TIMER] =
58 KONA_CLK(aon, hub_timer, peri),
59 [BCM21664_AON_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
60 },
61 };
62
63 /* Master CCU */
64
65 static struct peri_clk_data sdio1_data = {
66 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
67 .clocks = CLOCKS("ref_crystal",
68 "var_52m",
69 "ref_52m",
70 "var_96m",
71 "ref_96m"),
72 .sel = SELECTOR(0x0a28, 0, 3),
73 .div = DIVIDER(0x0a28, 4, 14),
74 .trig = TRIGGER(0x0afc, 9),
75 };
76
77 static struct peri_clk_data sdio2_data = {
78 .gate = HW_SW_GATE(0x035c, 18, 2, 3),
79 .clocks = CLOCKS("ref_crystal",
80 "var_52m",
81 "ref_52m",
82 "var_96m",
83 "ref_96m"),
84 .sel = SELECTOR(0x0a2c, 0, 3),
85 .div = DIVIDER(0x0a2c, 4, 14),
86 .trig = TRIGGER(0x0afc, 10),
87 };
88
89 static struct peri_clk_data sdio3_data = {
90 .gate = HW_SW_GATE(0x0364, 18, 2, 3),
91 .clocks = CLOCKS("ref_crystal",
92 "var_52m",
93 "ref_52m",
94 "var_96m",
95 "ref_96m"),
96 .sel = SELECTOR(0x0a34, 0, 3),
97 .div = DIVIDER(0x0a34, 4, 14),
98 .trig = TRIGGER(0x0afc, 12),
99 };
100
101 static struct peri_clk_data sdio4_data = {
102 .gate = HW_SW_GATE(0x0360, 18, 2, 3),
103 .clocks = CLOCKS("ref_crystal",
104 "var_52m",
105 "ref_52m",
106 "var_96m",
107 "ref_96m"),
108 .sel = SELECTOR(0x0a30, 0, 3),
109 .div = DIVIDER(0x0a30, 4, 14),
110 .trig = TRIGGER(0x0afc, 11),
111 };
112
113 static struct peri_clk_data sdio1_sleep_data = {
114 .clocks = CLOCKS("ref_32k"), /* Verify */
115 .gate = HW_SW_GATE(0x0358, 18, 2, 3),
116 };
117
118 static struct peri_clk_data sdio2_sleep_data = {
119 .clocks = CLOCKS("ref_32k"), /* Verify */
120 .gate = HW_SW_GATE(0x035c, 18, 2, 3),
121 };
122
123 static struct peri_clk_data sdio3_sleep_data = {
124 .clocks = CLOCKS("ref_32k"), /* Verify */
125 .gate = HW_SW_GATE(0x0364, 18, 2, 3),
126 };
127
128 static struct peri_clk_data sdio4_sleep_data = {
129 .clocks = CLOCKS("ref_32k"), /* Verify */
130 .gate = HW_SW_GATE(0x0360, 18, 2, 3),
131 };
132
133 static struct ccu_data master_ccu_data = {
134 BCM21664_CCU_COMMON(master, MASTER),
135 .policy = {
136 .enable = CCU_LVM_EN(0x0034, 0),
137 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
138 },
139 .kona_clks = {
140 [BCM21664_MASTER_CCU_SDIO1] =
141 KONA_CLK(master, sdio1, peri),
142 [BCM21664_MASTER_CCU_SDIO2] =
143 KONA_CLK(master, sdio2, peri),
144 [BCM21664_MASTER_CCU_SDIO3] =
145 KONA_CLK(master, sdio3, peri),
146 [BCM21664_MASTER_CCU_SDIO4] =
147 KONA_CLK(master, sdio4, peri),
148 [BCM21664_MASTER_CCU_SDIO1_SLEEP] =
149 KONA_CLK(master, sdio1_sleep, peri),
150 [BCM21664_MASTER_CCU_SDIO2_SLEEP] =
151 KONA_CLK(master, sdio2_sleep, peri),
152 [BCM21664_MASTER_CCU_SDIO3_SLEEP] =
153 KONA_CLK(master, sdio3_sleep, peri),
154 [BCM21664_MASTER_CCU_SDIO4_SLEEP] =
155 KONA_CLK(master, sdio4_sleep, peri),
156 [BCM21664_MASTER_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
157 },
158 };
159
160 /* Slave CCU */
161
162 static struct peri_clk_data uartb_data = {
163 .gate = HW_SW_GATE(0x0400, 18, 2, 3),
164 .clocks = CLOCKS("ref_crystal",
165 "var_156m",
166 "ref_156m"),
167 .sel = SELECTOR(0x0a10, 0, 2),
168 .div = FRAC_DIVIDER(0x0a10, 4, 12, 8),
169 .trig = TRIGGER(0x0afc, 2),
170 };
171
172 static struct peri_clk_data uartb2_data = {
173 .gate = HW_SW_GATE(0x0404, 18, 2, 3),
174 .clocks = CLOCKS("ref_crystal",
175 "var_156m",
176 "ref_156m"),
177 .sel = SELECTOR(0x0a14, 0, 2),
178 .div = FRAC_DIVIDER(0x0a14, 4, 12, 8),
179 .trig = TRIGGER(0x0afc, 3),
180 };
181
182 static struct peri_clk_data uartb3_data = {
183 .gate = HW_SW_GATE(0x0408, 18, 2, 3),
184 .clocks = CLOCKS("ref_crystal",
185 "var_156m",
186 "ref_156m"),
187 .sel = SELECTOR(0x0a18, 0, 2),
188 .div = FRAC_DIVIDER(0x0a18, 4, 12, 8),
189 .trig = TRIGGER(0x0afc, 4),
190 };
191
192 static struct peri_clk_data bsc1_data = {
193 .gate = HW_SW_GATE(0x0458, 18, 2, 3),
194 .clocks = CLOCKS("ref_crystal",
195 "var_104m",
196 "ref_104m",
197 "var_13m",
198 "ref_13m"),
199 .sel = SELECTOR(0x0a64, 0, 3),
200 .trig = TRIGGER(0x0afc, 23),
201 };
202
203 static struct peri_clk_data bsc2_data = {
204 .gate = HW_SW_GATE(0x045c, 18, 2, 3),
205 .clocks = CLOCKS("ref_crystal",
206 "var_104m",
207 "ref_104m",
208 "var_13m",
209 "ref_13m"),
210 .sel = SELECTOR(0x0a68, 0, 3),
211 .trig = TRIGGER(0x0afc, 24),
212 };
213
214 static struct peri_clk_data bsc3_data = {
215 .gate = HW_SW_GATE(0x0470, 18, 2, 3),
216 .clocks = CLOCKS("ref_crystal",
217 "var_104m",
218 "ref_104m",
219 "var_13m",
220 "ref_13m"),
221 .sel = SELECTOR(0x0a7c, 0, 3),
222 .trig = TRIGGER(0x0afc, 18),
223 };
224
225 static struct peri_clk_data bsc4_data = {
226 .gate = HW_SW_GATE(0x0474, 18, 2, 3),
227 .clocks = CLOCKS("ref_crystal",
228 "var_104m",
229 "ref_104m",
230 "var_13m",
231 "ref_13m"),
232 .sel = SELECTOR(0x0a80, 0, 3),
233 .trig = TRIGGER(0x0afc, 19),
234 };
235
236 static struct ccu_data slave_ccu_data = {
237 BCM21664_CCU_COMMON(slave, SLAVE),
238 .policy = {
239 .enable = CCU_LVM_EN(0x0034, 0),
240 .control = CCU_POLICY_CTL(0x000c, 0, 1, 2),
241 },
242 .kona_clks = {
243 [BCM21664_SLAVE_CCU_UARTB] =
244 KONA_CLK(slave, uartb, peri),
245 [BCM21664_SLAVE_CCU_UARTB2] =
246 KONA_CLK(slave, uartb2, peri),
247 [BCM21664_SLAVE_CCU_UARTB3] =
248 KONA_CLK(slave, uartb3, peri),
249 [BCM21664_SLAVE_CCU_BSC1] =
250 KONA_CLK(slave, bsc1, peri),
251 [BCM21664_SLAVE_CCU_BSC2] =
252 KONA_CLK(slave, bsc2, peri),
253 [BCM21664_SLAVE_CCU_BSC3] =
254 KONA_CLK(slave, bsc3, peri),
255 [BCM21664_SLAVE_CCU_BSC4] =
256 KONA_CLK(slave, bsc4, peri),
257 [BCM21664_SLAVE_CCU_CLOCK_COUNT] = LAST_KONA_CLK,
258 },
259 };
260
261 /* Device tree match table callback functions */
262
kona_dt_root_ccu_setup(struct device_node * node)263 static void __init kona_dt_root_ccu_setup(struct device_node *node)
264 {
265 kona_dt_ccu_setup(&root_ccu_data, node);
266 }
267
kona_dt_aon_ccu_setup(struct device_node * node)268 static void __init kona_dt_aon_ccu_setup(struct device_node *node)
269 {
270 kona_dt_ccu_setup(&aon_ccu_data, node);
271 }
272
kona_dt_master_ccu_setup(struct device_node * node)273 static void __init kona_dt_master_ccu_setup(struct device_node *node)
274 {
275 kona_dt_ccu_setup(&master_ccu_data, node);
276 }
277
kona_dt_slave_ccu_setup(struct device_node * node)278 static void __init kona_dt_slave_ccu_setup(struct device_node *node)
279 {
280 kona_dt_ccu_setup(&slave_ccu_data, node);
281 }
282
283 CLK_OF_DECLARE(bcm21664_root_ccu, BCM21664_DT_ROOT_CCU_COMPAT,
284 kona_dt_root_ccu_setup);
285 CLK_OF_DECLARE(bcm21664_aon_ccu, BCM21664_DT_AON_CCU_COMPAT,
286 kona_dt_aon_ccu_setup);
287 CLK_OF_DECLARE(bcm21664_master_ccu, BCM21664_DT_MASTER_CCU_COMPAT,
288 kona_dt_master_ccu_setup);
289 CLK_OF_DECLARE(bcm21664_slave_ccu, BCM21664_DT_SLAVE_CCU_COMPAT,
290 kona_dt_slave_ccu_setup);
291
