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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / ce43893d4dea64cdf5d5f446b8181ef2709eaf09 / . / drivers / clk / renesas / r8a7796-cpg-mssr.c
blob: fb811e943ea13be3d37a4ced2a361606230c6fb4 [file] [log] [blame]
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]1/*
2 * Renesas R8A7796 CPG MSSR driver
3 *
4 * Copyright (C) 2017-2018 Marek Vasut <marek.vasut@gmail.com>
5 *
6 * Based on the following driver from Linux kernel:
7 * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
8 *
9 * Copyright (C) 2016 Glider bvba
10 *
11 * SPDX-License-Identifier: GPL-2.0+
12 */
13
14#include <common.h>
15#include <clk-uclass.h>
16#include <dm.h>
17
18#include <dt-bindings/clock/r8a7796-cpg-mssr.h>
19
20#include "renesas-cpg-mssr.h"
Marek Vasut58f17882018-01-08 17:09:45 +0100[diff] [blame]21#include "rcar-gen3-cpg.h"
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]22
Marek Vasutf11c9672018-01-08 16:05:28 +0100[diff] [blame]23enum clk_ids {
24 /* Core Clock Outputs exported to DT */
25 LAST_DT_CORE_CLK = R8A7796_CLK_OSC,
26
27 /* External Input Clocks */
28 CLK_EXTAL,
29 CLK_EXTALR,
30
31 /* Internal Core Clocks */
32 CLK_MAIN,
33 CLK_PLL0,
34 CLK_PLL1,
35 CLK_PLL2,
36 CLK_PLL3,
37 CLK_PLL4,
38 CLK_PLL1_DIV2,
39 CLK_PLL1_DIV4,
40 CLK_S0,
41 CLK_S1,
42 CLK_S2,
43 CLK_S3,
44 CLK_SDSRC,
45 CLK_RPCSRC,
46 CLK_SSPSRC,
47 CLK_RINT,
48
49 /* Module Clocks */
50 MOD_CLK_BASE
51};
52
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]53static const struct cpg_core_clk r8a7796_core_clks[] = {
54 /* External Clock Inputs */
55 DEF_INPUT("extal", CLK_EXTAL),
56 DEF_INPUT("extalr", CLK_EXTALR),
57
58 /* Internal Core Clocks */
59 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
60 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
61 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
62 DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
63 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
64 DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
65
66 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
67 DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1),
68 DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
69 DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
70 DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
71 DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
72 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
73 DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 1),
74
75 /* Core Clock Outputs */
76 DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
77 DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
78 DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
79 DEF_FIXED("zx", R8A7796_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
80 DEF_FIXED("s0d1", R8A7796_CLK_S0D1, CLK_S0, 1, 1),
81 DEF_FIXED("s0d2", R8A7796_CLK_S0D2, CLK_S0, 2, 1),
82 DEF_FIXED("s0d3", R8A7796_CLK_S0D3, CLK_S0, 3, 1),
83 DEF_FIXED("s0d4", R8A7796_CLK_S0D4, CLK_S0, 4, 1),
84 DEF_FIXED("s0d6", R8A7796_CLK_S0D6, CLK_S0, 6, 1),
85 DEF_FIXED("s0d8", R8A7796_CLK_S0D8, CLK_S0, 8, 1),
86 DEF_FIXED("s0d12", R8A7796_CLK_S0D12, CLK_S0, 12, 1),
87 DEF_FIXED("s1d1", R8A7796_CLK_S1D1, CLK_S1, 1, 1),
88 DEF_FIXED("s1d2", R8A7796_CLK_S1D2, CLK_S1, 2, 1),
89 DEF_FIXED("s1d4", R8A7796_CLK_S1D4, CLK_S1, 4, 1),
90 DEF_FIXED("s2d1", R8A7796_CLK_S2D1, CLK_S2, 1, 1),
91 DEF_FIXED("s2d2", R8A7796_CLK_S2D2, CLK_S2, 2, 1),
92 DEF_FIXED("s2d4", R8A7796_CLK_S2D4, CLK_S2, 4, 1),
93 DEF_FIXED("s3d1", R8A7796_CLK_S3D1, CLK_S3, 1, 1),
94 DEF_FIXED("s3d2", R8A7796_CLK_S3D2, CLK_S3, 2, 1),
95 DEF_FIXED("s3d4", R8A7796_CLK_S3D4, CLK_S3, 4, 1),
96
97 DEF_GEN3_SD("sd0", R8A7796_CLK_SD0, CLK_SDSRC, 0x074),
98 DEF_GEN3_SD("sd1", R8A7796_CLK_SD1, CLK_SDSRC, 0x078),
99 DEF_GEN3_SD("sd2", R8A7796_CLK_SD2, CLK_SDSRC, 0x268),
100 DEF_GEN3_SD("sd3", R8A7796_CLK_SD3, CLK_SDSRC, 0x26c),
101
102 DEF_GEN3_RPC("rpc", R8A7796_CLK_RPC, CLK_RPCSRC, 0x238),
103
104 DEF_FIXED("cl", R8A7796_CLK_CL, CLK_PLL1_DIV2, 48, 1),
105 DEF_FIXED("cp", R8A7796_CLK_CP, CLK_EXTAL, 2, 1),
106
107 /* NOTE: HDMI, CSI, CAN etc. clock are missing */
108
109 DEF_BASE("r", R8A7796_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
110};
111
112static const struct mssr_mod_clk r8a7796_mod_clks[] = {
113 DEF_MOD("scif5", 202, R8A7796_CLK_S3D4),
114 DEF_MOD("scif4", 203, R8A7796_CLK_S3D4),
115 DEF_MOD("scif3", 204, R8A7796_CLK_S3D4),
116 DEF_MOD("scif1", 206, R8A7796_CLK_S3D4),
117 DEF_MOD("scif0", 207, R8A7796_CLK_S3D4),
118 DEF_MOD("msiof3", 208, R8A7796_CLK_MSO),
119 DEF_MOD("msiof2", 209, R8A7796_CLK_MSO),
120 DEF_MOD("msiof1", 210, R8A7796_CLK_MSO),
121 DEF_MOD("msiof0", 211, R8A7796_CLK_MSO),
122 DEF_MOD("sys-dmac2", 217, R8A7796_CLK_S0D3),
123 DEF_MOD("sys-dmac1", 218, R8A7796_CLK_S0D3),
124 DEF_MOD("sys-dmac0", 219, R8A7796_CLK_S0D3),
125 DEF_MOD("cmt3", 300, R8A7796_CLK_R),
126 DEF_MOD("cmt2", 301, R8A7796_CLK_R),
127 DEF_MOD("cmt1", 302, R8A7796_CLK_R),
128 DEF_MOD("cmt0", 303, R8A7796_CLK_R),
129 DEF_MOD("scif2", 310, R8A7796_CLK_S3D4),
130 DEF_MOD("sdif3", 311, R8A7796_CLK_SD3),
131 DEF_MOD("sdif2", 312, R8A7796_CLK_SD2),
132 DEF_MOD("sdif1", 313, R8A7796_CLK_SD1),
133 DEF_MOD("sdif0", 314, R8A7796_CLK_SD0),
134 DEF_MOD("pcie1", 318, R8A7796_CLK_S3D1),
135 DEF_MOD("pcie0", 319, R8A7796_CLK_S3D1),
136 DEF_MOD("usb3-if0", 328, R8A7796_CLK_S3D1),
137 DEF_MOD("usb-dmac0", 330, R8A7796_CLK_S3D1),
138 DEF_MOD("usb-dmac1", 331, R8A7796_CLK_S3D1),
139 DEF_MOD("rwdt", 402, R8A7796_CLK_R),
140 DEF_MOD("intc-ex", 407, R8A7796_CLK_CP),
141 DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1),
142 DEF_MOD("audmac1", 501, R8A7796_CLK_S0D3),
143 DEF_MOD("audmac0", 502, R8A7796_CLK_S0D3),
144 DEF_MOD("drif7", 508, R8A7796_CLK_S3D2),
145 DEF_MOD("drif6", 509, R8A7796_CLK_S3D2),
146 DEF_MOD("drif5", 510, R8A7796_CLK_S3D2),
147 DEF_MOD("drif4", 511, R8A7796_CLK_S3D2),
148 DEF_MOD("drif3", 512, R8A7796_CLK_S3D2),
149 DEF_MOD("drif2", 513, R8A7796_CLK_S3D2),
150 DEF_MOD("drif1", 514, R8A7796_CLK_S3D2),
151 DEF_MOD("drif0", 515, R8A7796_CLK_S3D2),
152 DEF_MOD("hscif4", 516, R8A7796_CLK_S3D1),
153 DEF_MOD("hscif3", 517, R8A7796_CLK_S3D1),
154 DEF_MOD("hscif2", 518, R8A7796_CLK_S3D1),
155 DEF_MOD("hscif1", 519, R8A7796_CLK_S3D1),
156 DEF_MOD("hscif0", 520, R8A7796_CLK_S3D1),
157 DEF_MOD("thermal", 522, R8A7796_CLK_CP),
158 DEF_MOD("pwm", 523, R8A7796_CLK_S0D12),
159 DEF_MOD("fcpvd2", 601, R8A7796_CLK_S0D2),
160 DEF_MOD("fcpvd1", 602, R8A7796_CLK_S0D2),
161 DEF_MOD("fcpvd0", 603, R8A7796_CLK_S0D2),
162 DEF_MOD("fcpvb0", 607, R8A7796_CLK_S0D1),
163 DEF_MOD("fcpvi0", 611, R8A7796_CLK_S0D1),
164 DEF_MOD("fcpf0", 615, R8A7796_CLK_S0D1),
165 DEF_MOD("fcpci0", 617, R8A7796_CLK_S0D2),
166 DEF_MOD("fcpcs", 619, R8A7796_CLK_S0D2),
167 DEF_MOD("vspd2", 621, R8A7796_CLK_S0D2),
168 DEF_MOD("vspd1", 622, R8A7796_CLK_S0D2),
169 DEF_MOD("vspd0", 623, R8A7796_CLK_S0D2),
170 DEF_MOD("vspb", 626, R8A7796_CLK_S0D1),
171 DEF_MOD("vspi0", 631, R8A7796_CLK_S0D1),
172 DEF_MOD("ehci1", 702, R8A7796_CLK_S3D4),
173 DEF_MOD("ehci0", 703, R8A7796_CLK_S3D4),
174 DEF_MOD("hsusb", 704, R8A7796_CLK_S3D4),
175 DEF_MOD("csi20", 714, R8A7796_CLK_CSI0),
176 DEF_MOD("csi40", 716, R8A7796_CLK_CSI0),
177 DEF_MOD("du2", 722, R8A7796_CLK_S2D1),
178 DEF_MOD("du1", 723, R8A7796_CLK_S2D1),
179 DEF_MOD("du0", 724, R8A7796_CLK_S2D1),
180 DEF_MOD("lvds", 727, R8A7796_CLK_S2D1),
181 DEF_MOD("hdmi0", 729, R8A7796_CLK_HDMI),
182 DEF_MOD("vin7", 804, R8A7796_CLK_S0D2),
183 DEF_MOD("vin6", 805, R8A7796_CLK_S0D2),
184 DEF_MOD("vin5", 806, R8A7796_CLK_S0D2),
185 DEF_MOD("vin4", 807, R8A7796_CLK_S0D2),
186 DEF_MOD("vin3", 808, R8A7796_CLK_S0D2),
187 DEF_MOD("vin2", 809, R8A7796_CLK_S0D2),
188 DEF_MOD("vin1", 810, R8A7796_CLK_S0D2),
189 DEF_MOD("vin0", 811, R8A7796_CLK_S0D2),
190 DEF_MOD("etheravb", 812, R8A7796_CLK_S0D6),
191 DEF_MOD("imr1", 822, R8A7796_CLK_S0D2),
192 DEF_MOD("imr0", 823, R8A7796_CLK_S0D2),
193 DEF_MOD("gpio7", 905, R8A7796_CLK_S3D4),
194 DEF_MOD("gpio6", 906, R8A7796_CLK_S3D4),
195 DEF_MOD("gpio5", 907, R8A7796_CLK_S3D4),
196 DEF_MOD("gpio4", 908, R8A7796_CLK_S3D4),
197 DEF_MOD("gpio3", 909, R8A7796_CLK_S3D4),
198 DEF_MOD("gpio2", 910, R8A7796_CLK_S3D4),
199 DEF_MOD("gpio1", 911, R8A7796_CLK_S3D4),
200 DEF_MOD("gpio0", 912, R8A7796_CLK_S3D4),
201 DEF_MOD("can-fd", 914, R8A7796_CLK_S3D2),
202 DEF_MOD("can-if1", 915, R8A7796_CLK_S3D4),
203 DEF_MOD("can-if0", 916, R8A7796_CLK_S3D4),
204 DEF_MOD("rpc", 917, R8A7796_CLK_RPC),
205 DEF_MOD("i2c6", 918, R8A7796_CLK_S0D6),
206 DEF_MOD("i2c5", 919, R8A7796_CLK_S0D6),
207 DEF_MOD("i2c-dvfs", 926, R8A7796_CLK_CP),
208 DEF_MOD("i2c4", 927, R8A7796_CLK_S0D6),
209 DEF_MOD("i2c3", 928, R8A7796_CLK_S0D6),
210 DEF_MOD("i2c2", 929, R8A7796_CLK_S3D2),
211 DEF_MOD("i2c1", 930, R8A7796_CLK_S3D2),
212 DEF_MOD("i2c0", 931, R8A7796_CLK_S3D2),
213 DEF_MOD("ssi-all", 1005, R8A7796_CLK_S3D4),
214 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),
215 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),
216 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),
217 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),
218 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),
219 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
220 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
221 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),
222 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),
223 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),
224 DEF_MOD("scu-all", 1017, R8A7796_CLK_S3D4),
225 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),
226 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),
227 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),
228 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),
229 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)),
230 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)),
231 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)),
232 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),
233 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
234 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),
235 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),
236 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),
237 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),
238 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)),
239};
240
Marek Vasut7c885562018-01-16 19:23:17 +0100[diff] [blame]241/*
242 * CPG Clock Data
243 */
244
245/*
246 * MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4
247 * 14 13 19 17 (MHz)
248 *-------------------------------------------------------------------
249 * 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144
250 * 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144
251 * 0 0 1 0 Prohibited setting
252 * 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144
253 * 0 1 0 0 20 x 1 x150 x160 x120 x160 x120
254 * 0 1 0 1 20 x 1 x150 x160 x120 x106 x120
255 * 0 1 1 0 Prohibited setting
256 * 0 1 1 1 20 x 1 x150 x160 x120 x160 x120
257 * 1 0 0 0 25 x 1 x120 x128 x96 x128 x96
258 * 1 0 0 1 25 x 1 x120 x128 x96 x84 x96
259 * 1 0 1 0 Prohibited setting
260 * 1 0 1 1 25 x 1 x120 x128 x96 x128 x96
261 * 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144
262 * 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144
263 * 1 1 1 0 Prohibited setting
264 * 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144
265 */
266#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \
267 (((md) & BIT(13)) >> 11) | \
268 (((md) & BIT(19)) >> 18) | \
269 (((md) & BIT(17)) >> 17))
270
271static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] = {
272 /* EXTAL div PLL1 mult/div PLL3 mult/div */
273 { 1, 192, 1, 192, 1, },
274 { 1, 192, 1, 128, 1, },
275 { 0, /* Prohibited setting */ },
276 { 1, 192, 1, 192, 1, },
277 { 1, 160, 1, 160, 1, },
278 { 1, 160, 1, 106, 1, },
279 { 0, /* Prohibited setting */ },
280 { 1, 160, 1, 160, 1, },
281 { 1, 128, 1, 128, 1, },
282 { 1, 128, 1, 84, 1, },
283 { 0, /* Prohibited setting */ },
284 { 1, 128, 1, 128, 1, },
285 { 2, 192, 1, 192, 1, },
286 { 2, 192, 1, 128, 1, },
287 { 0, /* Prohibited setting */ },
288 { 2, 192, 1, 192, 1, },
289};
290
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]291static const struct mstp_stop_table r8a7796_mstp_table[] = {
Marek Vasutff50b322018-01-15 00:58:35 +0100[diff] [blame]292 { 0x00200000, 0x0, 0x00200000, 0 },
293 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
294 { 0x340E2FDC, 0x2040, 0x340E2FDC, 0 },
295 { 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
296 { 0x80000184, 0x180, 0x80000184, 0 },
297 { 0xC3FFFFFF, 0x0, 0xC3FFFFFF, 0 },
298 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
299 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
300 { 0x01F1FFF7, 0x0, 0x01F1FFF7, 0 },
301 { 0xFFFFFFFE, 0x0, 0xFFFFFFFE, 0 },
302 { 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
303 { 0x000000B7, 0x0, 0x000000B7, 0 },
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]304};
305
Marek Vasut7c885562018-01-16 19:23:17 +0100[diff] [blame]306static const void *r8a7796_get_pll_config(const u32 cpg_mode)
307{
308 return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
309}
310
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]311static const struct cpg_mssr_info r8a7796_cpg_mssr_info = {
312 .core_clk = r8a7796_core_clks,
313 .core_clk_size = ARRAY_SIZE(r8a7796_core_clks),
314 .mod_clk = r8a7796_mod_clks,
315 .mod_clk_size = ARRAY_SIZE(r8a7796_mod_clks),
316 .mstp_table = r8a7796_mstp_table,
317 .mstp_table_size = ARRAY_SIZE(r8a7796_mstp_table),
318 .reset_node = "renesas,r8a7796-rst",
319 .extalr_node = "extalr",
Marek Vasutf11c9672018-01-08 16:05:28 +0100[diff] [blame]320 .mod_clk_base = MOD_CLK_BASE,
321 .clk_extal_id = CLK_EXTAL,
322 .clk_extalr_id = CLK_EXTALR,
Marek Vasut7c885562018-01-16 19:23:17 +0100[diff] [blame]323 .get_pll_config = r8a7796_get_pll_config,
Marek Vasutf77b5a42018-01-08 14:01:40 +0100[diff] [blame]324};
325
326static const struct udevice_id r8a7796_clk_ids[] = {
327 {
328 .compatible = "renesas,r8a7796-cpg-mssr",
329 .data = (ulong)&r8a7796_cpg_mssr_info,
330 },
331 { }
332};
333
334U_BOOT_DRIVER(clk_r8a7796) = {
335 .name = "clk_r8a7796",
336 .id = UCLASS_CLK,
337 .of_match = r8a7796_clk_ids,
338 .priv_auto_alloc_size = sizeof(struct gen3_clk_priv),
339 .ops = &gen3_clk_ops,
340 .probe = gen3_clk_probe,
341 .remove = gen3_clk_remove,
342};