1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * r8a7795 Clock Pulse Generator / Module Standby and Software Reset
4 *
5 * Copyright (C) 2015 Glider bvba
6 * Copyright (C) 2018-2019 Renesas Electronics Corp.
7 *
8 * Based on clk-rcar-gen3.c
9 *
10 * Copyright (C) 2015 Renesas Electronics Corp.
11 */
12
13 #include <linux/device.h>
14 #include <linux/init.h>
15 #include <linux/kernel.h>
16 #include <linux/soc/renesas/rcar-rst.h>
17 #include <linux/sys_soc.h>
18
19 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
20
21 #include "renesas-cpg-mssr.h"
22 #include "rcar-gen3-cpg.h"
23
24 enum clk_ids {
25 /* Core Clock Outputs exported to DT */
26 LAST_DT_CORE_CLK = R8A7795_CLK_S0D12,
27
28 /* External Input Clocks */
29 CLK_EXTAL,
30 CLK_EXTALR,
31
32 /* Internal Core Clocks */
33 CLK_MAIN,
34 CLK_PLL0,
35 CLK_PLL1,
36 CLK_PLL2,
37 CLK_PLL3,
38 CLK_PLL4,
39 CLK_PLL1_DIV2,
40 CLK_PLL1_DIV4,
41 CLK_S0,
42 CLK_S1,
43 CLK_S2,
44 CLK_S3,
45 CLK_SDSRC,
46 CLK_SSPSRC,
47 CLK_RPCSRC,
48 CLK_RINT,
49
50 /* Module Clocks */
51 MOD_CLK_BASE
52 };
53
54 static struct cpg_core_clk r8a7795_core_clks[] __initdata = {
55 /* External Clock Inputs */
56 DEF_INPUT("extal", CLK_EXTAL),
57 DEF_INPUT("extalr", CLK_EXTALR),
58
59 /* Internal Core Clocks */
60 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
61 DEF_BASE(".pll0", CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
62 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
63 DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
64 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
65 DEF_BASE(".pll4", CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
66
67 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
68 DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1),
69 DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
70 DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
71 DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
72 DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
73 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
74
75 DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN3_RPCSRC, CLK_PLL1),
76
77 DEF_GEN3_OSC(".r", CLK_RINT, CLK_EXTAL, 32),
78
79 /* Core Clock Outputs */
80 DEF_GEN3_Z("z", R8A7795_CLK_Z, CLK_TYPE_GEN3_Z, CLK_PLL0, 2, 8),
81 DEF_GEN3_Z("z2", R8A7795_CLK_Z2, CLK_TYPE_GEN3_Z, CLK_PLL2, 2, 0),
82 DEF_GEN3_Z("zg", R8A7795_CLK_ZG, CLK_TYPE_GEN3_ZG, CLK_PLL4, 4, 24),
83 DEF_FIXED("ztr", R8A7795_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
84 DEF_FIXED("ztrd2", R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
85 DEF_FIXED("zt", R8A7795_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
86 DEF_FIXED("zx", R8A7795_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
87 DEF_FIXED("s0d1", R8A7795_CLK_S0D1, CLK_S0, 1, 1),
88 DEF_FIXED("s0d2", R8A7795_CLK_S0D2, CLK_S0, 2, 1),
89 DEF_FIXED("s0d3", R8A7795_CLK_S0D3, CLK_S0, 3, 1),
90 DEF_FIXED("s0d4", R8A7795_CLK_S0D4, CLK_S0, 4, 1),
91 DEF_FIXED("s0d6", R8A7795_CLK_S0D6, CLK_S0, 6, 1),
92 DEF_FIXED("s0d8", R8A7795_CLK_S0D8, CLK_S0, 8, 1),
93 DEF_FIXED("s0d12", R8A7795_CLK_S0D12, CLK_S0, 12, 1),
94 DEF_FIXED("s1d1", R8A7795_CLK_S1D1, CLK_S1, 1, 1),
95 DEF_FIXED("s1d2", R8A7795_CLK_S1D2, CLK_S1, 2, 1),
96 DEF_FIXED("s1d4", R8A7795_CLK_S1D4, CLK_S1, 4, 1),
97 DEF_FIXED("s2d1", R8A7795_CLK_S2D1, CLK_S2, 1, 1),
98 DEF_FIXED("s2d2", R8A7795_CLK_S2D2, CLK_S2, 2, 1),
99 DEF_FIXED("s2d4", R8A7795_CLK_S2D4, CLK_S2, 4, 1),
100 DEF_FIXED("s3d1", R8A7795_CLK_S3D1, CLK_S3, 1, 1),
101 DEF_FIXED("s3d2", R8A7795_CLK_S3D2, CLK_S3, 2, 1),
102 DEF_FIXED("s3d4", R8A7795_CLK_S3D4, CLK_S3, 4, 1),
103
104 DEF_GEN3_SDH("sd0h", R8A7795_CLK_SD0H, CLK_SDSRC, 0x074),
105 DEF_GEN3_SDH("sd1h", R8A7795_CLK_SD1H, CLK_SDSRC, 0x078),
106 DEF_GEN3_SDH("sd2h", R8A7795_CLK_SD2H, CLK_SDSRC, 0x268),
107 DEF_GEN3_SDH("sd3h", R8A7795_CLK_SD3H, CLK_SDSRC, 0x26c),
108 DEF_GEN3_SD("sd0", R8A7795_CLK_SD0, R8A7795_CLK_SD0H, 0x074),
109 DEF_GEN3_SD("sd1", R8A7795_CLK_SD1, R8A7795_CLK_SD1H, 0x078),
110 DEF_GEN3_SD("sd2", R8A7795_CLK_SD2, R8A7795_CLK_SD2H, 0x268),
111 DEF_GEN3_SD("sd3", R8A7795_CLK_SD3, R8A7795_CLK_SD3H, 0x26c),
112
113 DEF_BASE("rpc", R8A7795_CLK_RPC, CLK_TYPE_GEN3_RPC, CLK_RPCSRC),
114 DEF_BASE("rpcd2", R8A7795_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2, R8A7795_CLK_RPC),
115
116 DEF_FIXED("cl", R8A7795_CLK_CL, CLK_PLL1_DIV2, 48, 1),
117 DEF_FIXED("cr", R8A7795_CLK_CR, CLK_PLL1_DIV4, 2, 1),
118 DEF_FIXED("cp", R8A7795_CLK_CP, CLK_EXTAL, 2, 1),
119 DEF_FIXED("cpex", R8A7795_CLK_CPEX, CLK_EXTAL, 2, 1),
120
121 DEF_DIV6P1("canfd", R8A7795_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
122 DEF_DIV6P1("csi0", R8A7795_CLK_CSI0, CLK_PLL1_DIV4, 0x00c),
123 DEF_DIV6P1("mso", R8A7795_CLK_MSO, CLK_PLL1_DIV4, 0x014),
124 DEF_DIV6P1("hdmi", R8A7795_CLK_HDMI, CLK_PLL1_DIV4, 0x250),
125
126 DEF_GEN3_OSC("osc", R8A7795_CLK_OSC, CLK_EXTAL, 8),
127
128 DEF_BASE("r", R8A7795_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
129 };
130
131 static struct mssr_mod_clk r8a7795_mod_clks[] __initdata = {
132 DEF_MOD("3dge", 112, R8A7795_CLK_ZG),
133 DEF_MOD("fdp1-1", 118, R8A7795_CLK_S0D1),
134 DEF_MOD("fdp1-0", 119, R8A7795_CLK_S0D1),
135 DEF_MOD("tmu4", 121, R8A7795_CLK_S0D6),
136 DEF_MOD("tmu3", 122, R8A7795_CLK_S3D2),
137 DEF_MOD("tmu2", 123, R8A7795_CLK_S3D2),
138 DEF_MOD("tmu1", 124, R8A7795_CLK_S3D2),
139 DEF_MOD("tmu0", 125, R8A7795_CLK_CP),
140 DEF_MOD("scif5", 202, R8A7795_CLK_S3D4),
141 DEF_MOD("scif4", 203, R8A7795_CLK_S3D4),
142 DEF_MOD("scif3", 204, R8A7795_CLK_S3D4),
143 DEF_MOD("scif1", 206, R8A7795_CLK_S3D4),
144 DEF_MOD("scif0", 207, R8A7795_CLK_S3D4),
145 DEF_MOD("msiof3", 208, R8A7795_CLK_MSO),
146 DEF_MOD("msiof2", 209, R8A7795_CLK_MSO),
147 DEF_MOD("msiof1", 210, R8A7795_CLK_MSO),
148 DEF_MOD("msiof0", 211, R8A7795_CLK_MSO),
149 DEF_MOD("sys-dmac2", 217, R8A7795_CLK_S3D1),
150 DEF_MOD("sys-dmac1", 218, R8A7795_CLK_S3D1),
151 DEF_MOD("sys-dmac0", 219, R8A7795_CLK_S0D3),
152 DEF_MOD("sceg-pub", 229, R8A7795_CLK_CR),
153 DEF_MOD("cmt3", 300, R8A7795_CLK_R),
154 DEF_MOD("cmt2", 301, R8A7795_CLK_R),
155 DEF_MOD("cmt1", 302, R8A7795_CLK_R),
156 DEF_MOD("cmt0", 303, R8A7795_CLK_R),
157 DEF_MOD("tpu0", 304, R8A7795_CLK_S3D4),
158 DEF_MOD("scif2", 310, R8A7795_CLK_S3D4),
159 DEF_MOD("sdif3", 311, R8A7795_CLK_SD3),
160 DEF_MOD("sdif2", 312, R8A7795_CLK_SD2),
161 DEF_MOD("sdif1", 313, R8A7795_CLK_SD1),
162 DEF_MOD("sdif0", 314, R8A7795_CLK_SD0),
163 DEF_MOD("pcie1", 318, R8A7795_CLK_S3D1),
164 DEF_MOD("pcie0", 319, R8A7795_CLK_S3D1),
165 DEF_MOD("usb-dmac30", 326, R8A7795_CLK_S3D1),
166 DEF_MOD("usb3-if0", 328, R8A7795_CLK_S3D1),
167 DEF_MOD("usb-dmac31", 329, R8A7795_CLK_S3D1),
168 DEF_MOD("usb-dmac0", 330, R8A7795_CLK_S3D1),
169 DEF_MOD("usb-dmac1", 331, R8A7795_CLK_S3D1),
170 DEF_MOD("rwdt", 402, R8A7795_CLK_R),
171 DEF_MOD("intc-ex", 407, R8A7795_CLK_CP),
172 DEF_MOD("intc-ap", 408, R8A7795_CLK_S0D3),
173 DEF_MOD("audmac1", 501, R8A7795_CLK_S1D2),
174 DEF_MOD("audmac0", 502, R8A7795_CLK_S1D2),
175 DEF_MOD("drif31", 508, R8A7795_CLK_S3D2),
176 DEF_MOD("drif30", 509, R8A7795_CLK_S3D2),
177 DEF_MOD("drif21", 510, R8A7795_CLK_S3D2),
178 DEF_MOD("drif20", 511, R8A7795_CLK_S3D2),
179 DEF_MOD("drif11", 512, R8A7795_CLK_S3D2),
180 DEF_MOD("drif10", 513, R8A7795_CLK_S3D2),
181 DEF_MOD("drif01", 514, R8A7795_CLK_S3D2),
182 DEF_MOD("drif00", 515, R8A7795_CLK_S3D2),
183 DEF_MOD("hscif4", 516, R8A7795_CLK_S3D1),
184 DEF_MOD("hscif3", 517, R8A7795_CLK_S3D1),
185 DEF_MOD("hscif2", 518, R8A7795_CLK_S3D1),
186 DEF_MOD("hscif1", 519, R8A7795_CLK_S3D1),
187 DEF_MOD("hscif0", 520, R8A7795_CLK_S3D1),
188 DEF_MOD("thermal", 522, R8A7795_CLK_CP),
189 DEF_MOD("pwm", 523, R8A7795_CLK_S0D12),
190 DEF_MOD("fcpvd2", 601, R8A7795_CLK_S0D2),
191 DEF_MOD("fcpvd1", 602, R8A7795_CLK_S0D2),
192 DEF_MOD("fcpvd0", 603, R8A7795_CLK_S0D2),
193 DEF_MOD("fcpvb1", 606, R8A7795_CLK_S0D1),
194 DEF_MOD("fcpvb0", 607, R8A7795_CLK_S0D1),
195 DEF_MOD("fcpvi1", 610, R8A7795_CLK_S0D1),
196 DEF_MOD("fcpvi0", 611, R8A7795_CLK_S0D1),
197 DEF_MOD("fcpf1", 614, R8A7795_CLK_S0D1),
198 DEF_MOD("fcpf0", 615, R8A7795_CLK_S0D1),
199 DEF_MOD("fcpcs", 619, R8A7795_CLK_S0D1),
200 DEF_MOD("vspd2", 621, R8A7795_CLK_S0D2),
201 DEF_MOD("vspd1", 622, R8A7795_CLK_S0D2),
202 DEF_MOD("vspd0", 623, R8A7795_CLK_S0D2),
203 DEF_MOD("vspbc", 624, R8A7795_CLK_S0D1),
204 DEF_MOD("vspbd", 626, R8A7795_CLK_S0D1),
205 DEF_MOD("vspi1", 630, R8A7795_CLK_S0D1),
206 DEF_MOD("vspi0", 631, R8A7795_CLK_S0D1),
207 DEF_MOD("ehci3", 700, R8A7795_CLK_S3D2),
208 DEF_MOD("ehci2", 701, R8A7795_CLK_S3D2),
209 DEF_MOD("ehci1", 702, R8A7795_CLK_S3D2),
210 DEF_MOD("ehci0", 703, R8A7795_CLK_S3D2),
211 DEF_MOD("hsusb", 704, R8A7795_CLK_S3D2),
212 DEF_MOD("hsusb3", 705, R8A7795_CLK_S3D2),
213 DEF_MOD("cmm3", 708, R8A7795_CLK_S2D1),
214 DEF_MOD("cmm2", 709, R8A7795_CLK_S2D1),
215 DEF_MOD("cmm1", 710, R8A7795_CLK_S2D1),
216 DEF_MOD("cmm0", 711, R8A7795_CLK_S2D1),
217 DEF_MOD("csi20", 714, R8A7795_CLK_CSI0),
218 DEF_MOD("csi41", 715, R8A7795_CLK_CSI0),
219 DEF_MOD("csi40", 716, R8A7795_CLK_CSI0),
220 DEF_MOD("du3", 721, R8A7795_CLK_S2D1),
221 DEF_MOD("du2", 722, R8A7795_CLK_S2D1),
222 DEF_MOD("du1", 723, R8A7795_CLK_S2D1),
223 DEF_MOD("du0", 724, R8A7795_CLK_S2D1),
224 DEF_MOD("lvds", 727, R8A7795_CLK_S0D4),
225 DEF_MOD("hdmi1", 728, R8A7795_CLK_HDMI),
226 DEF_MOD("hdmi0", 729, R8A7795_CLK_HDMI),
227 DEF_MOD("mlp", 802, R8A7795_CLK_S2D1),
228 DEF_MOD("vin7", 804, R8A7795_CLK_S0D2),
229 DEF_MOD("vin6", 805, R8A7795_CLK_S0D2),
230 DEF_MOD("vin5", 806, R8A7795_CLK_S0D2),
231 DEF_MOD("vin4", 807, R8A7795_CLK_S0D2),
232 DEF_MOD("vin3", 808, R8A7795_CLK_S0D2),
233 DEF_MOD("vin2", 809, R8A7795_CLK_S0D2),
234 DEF_MOD("vin1", 810, R8A7795_CLK_S0D2),
235 DEF_MOD("vin0", 811, R8A7795_CLK_S0D2),
236 DEF_MOD("etheravb", 812, R8A7795_CLK_S0D6),
237 DEF_MOD("sata0", 815, R8A7795_CLK_S3D2),
238 DEF_MOD("imr3", 820, R8A7795_CLK_S0D2),
239 DEF_MOD("imr2", 821, R8A7795_CLK_S0D2),
240 DEF_MOD("imr1", 822, R8A7795_CLK_S0D2),
241 DEF_MOD("imr0", 823, R8A7795_CLK_S0D2),
242 DEF_MOD("gpio7", 905, R8A7795_CLK_S3D4),
243 DEF_MOD("gpio6", 906, R8A7795_CLK_S3D4),
244 DEF_MOD("gpio5", 907, R8A7795_CLK_S3D4),
245 DEF_MOD("gpio4", 908, R8A7795_CLK_S3D4),
246 DEF_MOD("gpio3", 909, R8A7795_CLK_S3D4),
247 DEF_MOD("gpio2", 910, R8A7795_CLK_S3D4),
248 DEF_MOD("gpio1", 911, R8A7795_CLK_S3D4),
249 DEF_MOD("gpio0", 912, R8A7795_CLK_S3D4),
250 DEF_MOD("can-fd", 914, R8A7795_CLK_S3D2),
251 DEF_MOD("can-if1", 915, R8A7795_CLK_S3D4),
252 DEF_MOD("can-if0", 916, R8A7795_CLK_S3D4),
253 DEF_MOD("rpc-if", 917, R8A7795_CLK_RPCD2),
254 DEF_MOD("i2c6", 918, R8A7795_CLK_S0D6),
255 DEF_MOD("i2c5", 919, R8A7795_CLK_S0D6),
256 DEF_MOD("adg", 922, R8A7795_CLK_S0D4),
257 DEF_MOD("i2c-dvfs", 926, R8A7795_CLK_CP),
258 DEF_MOD("i2c4", 927, R8A7795_CLK_S0D6),
259 DEF_MOD("i2c3", 928, R8A7795_CLK_S0D6),
260 DEF_MOD("i2c2", 929, R8A7795_CLK_S3D2),
261 DEF_MOD("i2c1", 930, R8A7795_CLK_S3D2),
262 DEF_MOD("i2c0", 931, R8A7795_CLK_S3D2),
263 DEF_MOD("ssi-all", 1005, R8A7795_CLK_S3D4),
264 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),
265 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),
266 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),
267 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),
268 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),
269 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
270 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
271 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),
272 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),
273 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),
274 DEF_MOD("scu-all", 1017, R8A7795_CLK_S3D4),
275 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),
276 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),
277 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),
278 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),
279 DEF_MOD("scu-src9", 1022, MOD_CLK_ID(1017)),
280 DEF_MOD("scu-src8", 1023, MOD_CLK_ID(1017)),
281 DEF_MOD("scu-src7", 1024, MOD_CLK_ID(1017)),
282 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),
283 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
284 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),
285 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),
286 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),
287 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),
288 DEF_MOD("scu-src0", 1031, MOD_CLK_ID(1017)),
289 };
290
291 static const unsigned int r8a7795_crit_mod_clks[] __initconst = {
292 MOD_CLK_ID(402), /* RWDT */
293 MOD_CLK_ID(408), /* INTC-AP (GIC) */
294 };
295
296 /*
297 * CPG Clock Data
298 */
299
300 /*
301 * MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4 OSC
302 * 14 13 19 17 (MHz)
303 *-------------------------------------------------------------------------
304 * 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144 /16
305 * 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144 /16
306 * 0 0 1 0 Prohibited setting
307 * 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144 /16
308 * 0 1 0 0 20 x 1 x150 x160 x120 x160 x120 /19
309 * 0 1 0 1 20 x 1 x150 x160 x120 x106 x120 /19
310 * 0 1 1 0 Prohibited setting
311 * 0 1 1 1 20 x 1 x150 x160 x120 x160 x120 /19
312 * 1 0 0 0 25 x 1 x120 x128 x96 x128 x96 /24
313 * 1 0 0 1 25 x 1 x120 x128 x96 x84 x96 /24
314 * 1 0 1 0 Prohibited setting
315 * 1 0 1 1 25 x 1 x120 x128 x96 x128 x96 /24
316 * 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144 /32
317 * 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144 /32
318 * 1 1 1 0 Prohibited setting
319 * 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144 /32
320 */
321 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \
322 (((md) & BIT(13)) >> 11) | \
323 (((md) & BIT(19)) >> 18) | \
324 (((md) & BIT(17)) >> 17))
325
326 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
327 /* EXTAL div PLL1 mult/div PLL3 mult/div OSC prediv */
328 { 1, 192, 1, 192, 1, 16, },
329 { 1, 192, 1, 128, 1, 16, },
330 { 0, /* Prohibited setting */ },
331 { 1, 192, 1, 192, 1, 16, },
332 { 1, 160, 1, 160, 1, 19, },
333 { 1, 160, 1, 106, 1, 19, },
334 { 0, /* Prohibited setting */ },
335 { 1, 160, 1, 160, 1, 19, },
336 { 1, 128, 1, 128, 1, 24, },
337 { 1, 128, 1, 84, 1, 24, },
338 { 0, /* Prohibited setting */ },
339 { 1, 128, 1, 128, 1, 24, },
340 { 2, 192, 1, 192, 1, 32, },
341 { 2, 192, 1, 128, 1, 32, },
342 { 0, /* Prohibited setting */ },
343 { 2, 192, 1, 192, 1, 32, },
344 };
345
346 static const struct soc_device_attribute r8a7795_denylist[] __initconst = {
347 { .soc_id = "r8a7795", .revision = "ES1.*" },
348 { /* sentinel */ }
349 };
350
r8a7795_cpg_mssr_init(struct device * dev)351 static int __init r8a7795_cpg_mssr_init(struct device *dev)
352 {
353 const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
354 u32 cpg_mode;
355 int error;
356
357 /*
358 * We panic here to ensure removed SoCs and clk updates are always in
359 * sync to avoid overclocking damages. The panic can only be seen with
360 * commandline args 'earlycon keep_bootcon'. But these SoCs were for
361 * developers only anyhow.
362 */
363 if (soc_device_match(r8a7795_denylist))
364 panic("SoC not supported anymore!\n");
365
366 error = rcar_rst_read_mode_pins(&cpg_mode);
367 if (error)
368 return error;
369
370 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
371 if (!cpg_pll_config->extal_div) {
372 dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
373 return -EINVAL;
374 }
375
376 return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR, cpg_mode);
377 }
378
379 const struct cpg_mssr_info r8a7795_cpg_mssr_info __initconst = {
380 /* Core Clocks */
381 .core_clks = r8a7795_core_clks,
382 .num_core_clks = ARRAY_SIZE(r8a7795_core_clks),
383 .last_dt_core_clk = LAST_DT_CORE_CLK,
384 .num_total_core_clks = MOD_CLK_BASE,
385
386 /* Module Clocks */
387 .mod_clks = r8a7795_mod_clks,
388 .num_mod_clks = ARRAY_SIZE(r8a7795_mod_clks),
389 .num_hw_mod_clks = 12 * 32,
390
391 /* Critical Module Clocks */
392 .crit_mod_clks = r8a7795_crit_mod_clks,
393 .num_crit_mod_clks = ARRAY_SIZE(r8a7795_crit_mod_clks),
394
395 /* Callbacks */
396 .init = r8a7795_cpg_mssr_init,
397 .cpg_clk_register = rcar_gen3_cpg_clk_register,
398 };
399