1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * r8a77980 Clock Pulse Generator / Module Standby and Software Reset
4 *
5 * Copyright (C) 2018 Renesas Electronics Corp.
6 * Copyright (C) 2018 Cogent Embedded, Inc.
7 *
8 * Based on r8a7795-cpg-mssr.c
9 *
10 * Copyright (C) 2015 Glider bvba
11 */
12
13 #include <common.h>
14 #include <clk-uclass.h>
15 #include <dm.h>
16 #include <linux/bitops.h>
17
18 #include <dt-bindings/clock/r8a77980-cpg-mssr.h>
19
20 #include "renesas-cpg-mssr.h"
21 #include "rcar-gen3-cpg.h"
22
23 enum clk_ids {
24 /* Core Clock Outputs exported to DT */
25 LAST_DT_CORE_CLK = R8A77980_CLK_OSC,
26
27 /* External Input Clocks */
28 CLK_EXTAL,
29 CLK_EXTALR,
30
31 /* Internal Core Clocks */
32 CLK_MAIN,
33 CLK_PLL1,
34 CLK_PLL2,
35 CLK_PLL3,
36 CLK_PLL1_DIV2,
37 CLK_PLL1_DIV4,
38 CLK_S0,
39 CLK_S1,
40 CLK_S2,
41 CLK_S3,
42 CLK_SDSRC,
43 CLK_RPCSRC,
44 CLK_OCO,
45
46 /* Module Clocks */
47 MOD_CLK_BASE
48 };
49
50 static const struct cpg_core_clk r8a77980_core_clks[] = {
51 /* External Clock Inputs */
52 DEF_INPUT("extal", CLK_EXTAL),
53 DEF_INPUT("extalr", CLK_EXTALR),
54
55 /* Internal Core Clocks */
56 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
57 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
58 DEF_BASE(".pll2", CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
59 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
60
61 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
62 DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4, CLK_PLL1_DIV2, 2, 1),
63 DEF_FIXED(".s0", CLK_S0, CLK_PLL1_DIV2, 2, 1),
64 DEF_FIXED(".s1", CLK_S1, CLK_PLL1_DIV2, 3, 1),
65 DEF_FIXED(".s2", CLK_S2, CLK_PLL1_DIV2, 4, 1),
66 DEF_FIXED(".s3", CLK_S3, CLK_PLL1_DIV2, 6, 1),
67 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
68 DEF_BASE(".rpcsrc", CLK_RPCSRC, CLK_TYPE_GEN3_RPCSRC, CLK_PLL1),
69 DEF_RATE(".oco", CLK_OCO, 32768),
70
71 DEF_BASE("rpc", R8A77980_CLK_RPC, CLK_TYPE_GEN3_RPC,
72 CLK_RPCSRC),
73 DEF_BASE("rpcd2", R8A77980_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2,
74 R8A77980_CLK_RPC),
75
76 /* Core Clock Outputs */
77 DEF_FIXED("ztr", R8A77980_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
78 DEF_FIXED("ztrd2", R8A77980_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
79 DEF_FIXED("zt", R8A77980_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
80 DEF_FIXED("zx", R8A77980_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
81 DEF_FIXED("s0d1", R8A77980_CLK_S0D1, CLK_S0, 1, 1),
82 DEF_FIXED("s0d2", R8A77980_CLK_S0D2, CLK_S0, 2, 1),
83 DEF_FIXED("s0d3", R8A77980_CLK_S0D3, CLK_S0, 3, 1),
84 DEF_FIXED("s0d4", R8A77980_CLK_S0D4, CLK_S0, 4, 1),
85 DEF_FIXED("s0d6", R8A77980_CLK_S0D6, CLK_S0, 6, 1),
86 DEF_FIXED("s0d12", R8A77980_CLK_S0D12, CLK_S0, 12, 1),
87 DEF_FIXED("s0d24", R8A77980_CLK_S0D24, CLK_S0, 24, 1),
88 DEF_FIXED("s1d1", R8A77980_CLK_S1D1, CLK_S1, 1, 1),
89 DEF_FIXED("s1d2", R8A77980_CLK_S1D2, CLK_S1, 2, 1),
90 DEF_FIXED("s1d4", R8A77980_CLK_S1D4, CLK_S1, 4, 1),
91 DEF_FIXED("s2d1", R8A77980_CLK_S2D1, CLK_S2, 1, 1),
92 DEF_FIXED("s2d2", R8A77980_CLK_S2D2, CLK_S2, 2, 1),
93 DEF_FIXED("s2d4", R8A77980_CLK_S2D4, CLK_S2, 4, 1),
94 DEF_FIXED("s3d1", R8A77980_CLK_S3D1, CLK_S3, 1, 1),
95 DEF_FIXED("s3d2", R8A77980_CLK_S3D2, CLK_S3, 2, 1),
96 DEF_FIXED("s3d4", R8A77980_CLK_S3D4, CLK_S3, 4, 1),
97
98 DEF_GEN3_SD("sd0", R8A77980_CLK_SD0, CLK_SDSRC, 0x0074),
99
100 DEF_FIXED("cl", R8A77980_CLK_CL, CLK_PLL1_DIV2, 48, 1),
101 DEF_FIXED("cp", R8A77980_CLK_CP, CLK_EXTAL, 2, 1),
102 DEF_FIXED("cpex", R8A77980_CLK_CPEX, CLK_EXTAL, 2, 1),
103
104 DEF_DIV6P1("canfd", R8A77980_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
105 DEF_DIV6P1("csi0", R8A77980_CLK_CSI0, CLK_PLL1_DIV4, 0x00c),
106 DEF_DIV6P1("mso", R8A77980_CLK_MSO, CLK_PLL1_DIV4, 0x014),
107
108 DEF_GEN3_OSC("osc", R8A77980_CLK_OSC, CLK_EXTAL, 8),
109 DEF_GEN3_MDSEL("r", R8A77980_CLK_R, 29, CLK_EXTALR, 1, CLK_OCO, 1),
110 };
111
112 static const struct mssr_mod_clk r8a77980_mod_clks[] = {
113 DEF_MOD("tmu4", 121, R8A77980_CLK_S0D6),
114 DEF_MOD("tmu3", 122, R8A77980_CLK_S0D6),
115 DEF_MOD("tmu2", 123, R8A77980_CLK_S0D6),
116 DEF_MOD("tmu1", 124, R8A77980_CLK_S0D6),
117 DEF_MOD("tmu0", 125, R8A77980_CLK_CP),
118 DEF_MOD("scif4", 203, R8A77980_CLK_S3D4),
119 DEF_MOD("scif3", 204, R8A77980_CLK_S3D4),
120 DEF_MOD("scif1", 206, R8A77980_CLK_S3D4),
121 DEF_MOD("scif0", 207, R8A77980_CLK_S3D4),
122 DEF_MOD("msiof3", 208, R8A77980_CLK_MSO),
123 DEF_MOD("msiof2", 209, R8A77980_CLK_MSO),
124 DEF_MOD("msiof1", 210, R8A77980_CLK_MSO),
125 DEF_MOD("msiof0", 211, R8A77980_CLK_MSO),
126 DEF_MOD("sys-dmac2", 217, R8A77980_CLK_S0D3),
127 DEF_MOD("sys-dmac1", 218, R8A77980_CLK_S0D3),
128 DEF_MOD("cmt3", 300, R8A77980_CLK_R),
129 DEF_MOD("cmt2", 301, R8A77980_CLK_R),
130 DEF_MOD("cmt1", 302, R8A77980_CLK_R),
131 DEF_MOD("cmt0", 303, R8A77980_CLK_R),
132 DEF_MOD("tpu0", 304, R8A77980_CLK_S3D4),
133 DEF_MOD("sdif", 314, R8A77980_CLK_SD0),
134 DEF_MOD("pciec0", 319, R8A77980_CLK_S2D2),
135 DEF_MOD("rwdt", 402, R8A77980_CLK_R),
136 DEF_MOD("intc-ex", 407, R8A77980_CLK_CP),
137 DEF_MOD("intc-ap", 408, R8A77980_CLK_S0D3),
138 DEF_MOD("hscif3", 517, R8A77980_CLK_S3D1),
139 DEF_MOD("hscif2", 518, R8A77980_CLK_S3D1),
140 DEF_MOD("hscif1", 519, R8A77980_CLK_S3D1),
141 DEF_MOD("hscif0", 520, R8A77980_CLK_S3D1),
142 DEF_MOD("imp4", 521, R8A77980_CLK_S1D1),
143 DEF_MOD("thermal", 522, R8A77980_CLK_CP),
144 DEF_MOD("pwm", 523, R8A77980_CLK_S0D12),
145 DEF_MOD("impdma1", 526, R8A77980_CLK_S1D1),
146 DEF_MOD("impdma0", 527, R8A77980_CLK_S1D1),
147 DEF_MOD("imp-ocv4", 528, R8A77980_CLK_S1D1),
148 DEF_MOD("imp-ocv3", 529, R8A77980_CLK_S1D1),
149 DEF_MOD("imp-ocv2", 531, R8A77980_CLK_S1D1),
150 DEF_MOD("fcpvd0", 603, R8A77980_CLK_S3D1),
151 DEF_MOD("vspd0", 623, R8A77980_CLK_S3D1),
152 DEF_MOD("csi41", 715, R8A77980_CLK_CSI0),
153 DEF_MOD("csi40", 716, R8A77980_CLK_CSI0),
154 DEF_MOD("du0", 724, R8A77980_CLK_S2D1),
155 DEF_MOD("lvds", 727, R8A77980_CLK_S2D1),
156 DEF_MOD("etheravb", 812, R8A77980_CLK_S3D2),
157 DEF_MOD("gether", 813, R8A77980_CLK_S3D2),
158 DEF_MOD("imp3", 824, R8A77980_CLK_S1D1),
159 DEF_MOD("imp2", 825, R8A77980_CLK_S1D1),
160 DEF_MOD("imp1", 826, R8A77980_CLK_S1D1),
161 DEF_MOD("imp0", 827, R8A77980_CLK_S1D1),
162 DEF_MOD("imp-ocv1", 828, R8A77980_CLK_S1D1),
163 DEF_MOD("imp-ocv0", 829, R8A77980_CLK_S1D1),
164 DEF_MOD("impram", 830, R8A77980_CLK_S1D1),
165 DEF_MOD("impcnn", 831, R8A77980_CLK_S1D1),
166 DEF_MOD("gpio5", 907, R8A77980_CLK_CP),
167 DEF_MOD("gpio4", 908, R8A77980_CLK_CP),
168 DEF_MOD("gpio3", 909, R8A77980_CLK_CP),
169 DEF_MOD("gpio2", 910, R8A77980_CLK_CP),
170 DEF_MOD("gpio1", 911, R8A77980_CLK_CP),
171 DEF_MOD("gpio0", 912, R8A77980_CLK_CP),
172 DEF_MOD("can-fd", 914, R8A77980_CLK_S3D2),
173 DEF_MOD("rpc-if", 917, R8A77980_CLK_RPCD2),
174 DEF_MOD("i2c4", 927, R8A77980_CLK_S0D6),
175 DEF_MOD("i2c3", 928, R8A77980_CLK_S0D6),
176 DEF_MOD("i2c2", 929, R8A77980_CLK_S3D2),
177 DEF_MOD("i2c1", 930, R8A77980_CLK_S3D2),
178 DEF_MOD("i2c0", 931, R8A77980_CLK_S3D2),
179 };
180
181 /*
182 * CPG Clock Data
183 */
184
185 /*
186 * MD EXTAL PLL2 PLL1 PLL3 OSC
187 * 14 13 (MHz)
188 * --------------------------------------------------------
189 * 0 0 16.66 x 1 x240 x192 x192 /16
190 * 0 1 20 x 1 x200 x160 x160 /19
191 * 1 0 27 x 1 x148 x118 x118 /26
192 * 1 1 33.33 / 2 x240 x192 x192 /32
193 */
194 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \
195 (((md) & BIT(13)) >> 13))
196
197 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[4] = {
198 /* EXTAL div PLL1 mult/div PLL3 mult/div OSC prediv */
199 { 1, 192, 1, 192, 1, 16, },
200 { 1, 160, 1, 160, 1, 19, },
201 { 1, 118, 1, 118, 1, 26, },
202 { 2, 192, 1, 192, 1, 32, },
203 };
204
205 static const struct mstp_stop_table r8a77980_mstp_table[] = {
206 { 0x00230000, 0x0, 0x00230000, 0 },
207 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
208 { 0x14062FD8, 0x2040, 0x14062FD8, 0 },
209 { 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
210 { 0x80000184, 0x180, 0x80000184, 0 },
211 { 0x83FFFFFF, 0x0, 0x83FFFFFF, 0 },
212 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
213 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
214 { 0x7FF3FFF4, 0x0, 0x7FF3FFF4, 0 },
215 { 0xFBF7FF97, 0x0, 0xFBF7FF97, 0 },
216 { 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
217 { 0x000000B7, 0x0, 0x000000B7, 0 },
218 };
219
r8a77980_get_pll_config(const u32 cpg_mode)220 static const void *r8a77980_get_pll_config(const u32 cpg_mode)
221 {
222 return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
223 }
224
225 static const struct cpg_mssr_info r8a77980_cpg_mssr_info = {
226 .core_clk = r8a77980_core_clks,
227 .core_clk_size = ARRAY_SIZE(r8a77980_core_clks),
228 .mod_clk = r8a77980_mod_clks,
229 .mod_clk_size = ARRAY_SIZE(r8a77980_mod_clks),
230 .mstp_table = r8a77980_mstp_table,
231 .mstp_table_size = ARRAY_SIZE(r8a77980_mstp_table),
232 .reset_node = "renesas,r8a77980-rst",
233 .extalr_node = "extalr",
234 .mod_clk_base = MOD_CLK_BASE,
235 .clk_extal_id = CLK_EXTAL,
236 .clk_extalr_id = CLK_EXTALR,
237 .get_pll_config = r8a77980_get_pll_config,
238 };
239
240 static const struct udevice_id r8a77980_clk_ids[] = {
241 {
242 .compatible = "renesas,r8a77980-cpg-mssr",
243 .data = (ulong)&r8a77980_cpg_mssr_info
244 },
245 { }
246 };
247
248 U_BOOT_DRIVER(clk_r8a77980) = {
249 .name = "clk_r8a77980",
250 .id = UCLASS_CLK,
251 .of_match = r8a77980_clk_ids,
252 .priv_auto = sizeof(struct gen3_clk_priv),
253 .ops = &gen3_clk_ops,
254 .probe = gen3_clk_probe,
255 .remove = gen3_clk_remove,
256 };
257