1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * r8a77995 Clock Pulse Generator / Module Standby and Software Reset
4 *
5 * Copyright (C) 2017 Glider bvba
6 *
7 * Based on r8a7795-cpg-mssr.c
8 *
9 * Copyright (C) 2015 Glider bvba
10 * Copyright (C) 2015 Renesas Electronics Corp.
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/r8a77995-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 = R8A77995_CLK_CPEX,
26
27 /* External Input Clocks */
28 CLK_EXTAL,
29
30 /* Internal Core Clocks */
31 CLK_MAIN,
32 CLK_PLL0,
33 CLK_PLL1,
34 CLK_PLL3,
35 CLK_PLL0D2,
36 CLK_PLL0D3,
37 CLK_PLL0D5,
38 CLK_PLL1D2,
39 CLK_PE,
40 CLK_S0,
41 CLK_S1,
42 CLK_S2,
43 CLK_S3,
44 CLK_SDSRC,
45 CLK_RPCSRC,
46 CLK_RINT,
47 CLK_OCO,
48
49 /* Module Clocks */
50 MOD_CLK_BASE
51 };
52
53 static const struct cpg_core_clk r8a77995_core_clks[] = {
54 /* External Clock Inputs */
55 DEF_INPUT("extal", CLK_EXTAL),
56
57 /* Internal Core Clocks */
58 DEF_BASE(".main", CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
59 DEF_BASE(".pll1", CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
60 DEF_BASE(".pll3", CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
61
62 DEF_FIXED(".pll0", CLK_PLL0, CLK_MAIN, 4, 250),
63 DEF_FIXED(".pll0d2", CLK_PLL0D2, CLK_PLL0, 2, 1),
64 DEF_FIXED(".pll0d3", CLK_PLL0D3, CLK_PLL0, 3, 1),
65 DEF_FIXED(".pll0d5", CLK_PLL0D5, CLK_PLL0, 5, 1),
66 DEF_FIXED(".pll1d2", CLK_PLL1D2, CLK_PLL1, 2, 1),
67 DEF_FIXED(".pe", CLK_PE, CLK_PLL0D3, 4, 1),
68 DEF_FIXED(".s0", CLK_S0, CLK_PLL1, 2, 1),
69 DEF_FIXED(".s1", CLK_S1, CLK_PLL1, 3, 1),
70 DEF_FIXED(".s2", CLK_S2, CLK_PLL1, 4, 1),
71 DEF_FIXED(".s3", CLK_S3, CLK_PLL1, 6, 1),
72 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1, 2, 1),
73 DEF_FIXED(".rpcsrc", CLK_RPCSRC, CLK_PLL1, 2, 1),
74
75 DEF_DIV6_RO(".r", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
76
77 DEF_RATE(".oco", CLK_OCO, 8 * 1000 * 1000),
78
79 /* Core Clock Outputs */
80 DEF_FIXED("z2", R8A77995_CLK_Z2, CLK_PLL0D3, 1, 1),
81 DEF_FIXED("ztr", R8A77995_CLK_ZTR, CLK_PLL1, 6, 1),
82 DEF_FIXED("zt", R8A77995_CLK_ZT, CLK_PLL1, 4, 1),
83 DEF_FIXED("zx", R8A77995_CLK_ZX, CLK_PLL1, 3, 1),
84 DEF_FIXED("s0d1", R8A77995_CLK_S0D1, CLK_S0, 1, 1),
85 DEF_FIXED("s1d1", R8A77995_CLK_S1D1, CLK_S1, 1, 1),
86 DEF_FIXED("s1d2", R8A77995_CLK_S1D2, CLK_S1, 2, 1),
87 DEF_FIXED("s1d4", R8A77995_CLK_S1D4, CLK_S1, 4, 1),
88 DEF_FIXED("s2d1", R8A77995_CLK_S2D1, CLK_S2, 1, 1),
89 DEF_FIXED("s2d2", R8A77995_CLK_S2D2, CLK_S2, 2, 1),
90 DEF_FIXED("s2d4", R8A77995_CLK_S2D4, CLK_S2, 4, 1),
91 DEF_FIXED("s3d1", R8A77995_CLK_S3D1, CLK_S3, 1, 1),
92 DEF_FIXED("s3d2", R8A77995_CLK_S3D2, CLK_S3, 2, 1),
93 DEF_FIXED("s3d4", R8A77995_CLK_S3D4, CLK_S3, 4, 1),
94
95 DEF_FIXED("cl", R8A77995_CLK_CL, CLK_PLL1, 48, 1),
96 DEF_FIXED("cp", R8A77995_CLK_CP, CLK_EXTAL, 2, 1),
97 DEF_FIXED("cpex", R8A77995_CLK_CPEX, CLK_EXTAL, 4, 1),
98
99 DEF_DIV6_RO("osc", R8A77995_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
100
101 DEF_GEN3_RPC("rpc", R8A77995_CLK_RPC, CLK_RPCSRC, 0x238),
102
103 DEF_GEN3_PE("s1d4c", R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
104 DEF_GEN3_PE("s3d1c", R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
105 DEF_GEN3_PE("s3d2c", R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
106 DEF_GEN3_PE("s3d4c", R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
107
108 DEF_GEN3_SD("sd0", R8A77995_CLK_SD0, CLK_SDSRC, 0x268),
109
110 DEF_DIV6P1("canfd", R8A77995_CLK_CANFD, CLK_PLL0D3, 0x244),
111 DEF_DIV6P1("mso", R8A77995_CLK_MSO, CLK_PLL1D2, 0x014),
112
113 DEF_GEN3_RCKSEL("r", R8A77995_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4),
114 };
115
116 static const struct mssr_mod_clk r8a77995_mod_clks[] = {
117 DEF_MOD("scif5", 202, R8A77995_CLK_S3D4C),
118 DEF_MOD("scif4", 203, R8A77995_CLK_S3D4C),
119 DEF_MOD("scif3", 204, R8A77995_CLK_S3D4C),
120 DEF_MOD("scif1", 206, R8A77995_CLK_S3D4C),
121 DEF_MOD("scif0", 207, R8A77995_CLK_S3D4C),
122 DEF_MOD("msiof3", 208, R8A77995_CLK_MSO),
123 DEF_MOD("msiof2", 209, R8A77995_CLK_MSO),
124 DEF_MOD("msiof1", 210, R8A77995_CLK_MSO),
125 DEF_MOD("msiof0", 211, R8A77995_CLK_MSO),
126 DEF_MOD("sys-dmac2", 217, R8A77995_CLK_S3D1),
127 DEF_MOD("sys-dmac1", 218, R8A77995_CLK_S3D1),
128 DEF_MOD("sys-dmac0", 219, R8A77995_CLK_S3D1),
129 DEF_MOD("cmt3", 300, R8A77995_CLK_R),
130 DEF_MOD("cmt2", 301, R8A77995_CLK_R),
131 DEF_MOD("cmt1", 302, R8A77995_CLK_R),
132 DEF_MOD("cmt0", 303, R8A77995_CLK_R),
133 DEF_MOD("scif2", 310, R8A77995_CLK_S3D4C),
134 DEF_MOD("emmc0", 312, R8A77995_CLK_SD0),
135 DEF_MOD("usb-dmac0", 330, R8A77995_CLK_S3D1),
136 DEF_MOD("usb-dmac1", 331, R8A77995_CLK_S3D1),
137 DEF_MOD("rwdt", 402, R8A77995_CLK_R),
138 DEF_MOD("intc-ex", 407, R8A77995_CLK_CP),
139 DEF_MOD("intc-ap", 408, R8A77995_CLK_S1D2),
140 DEF_MOD("audmac0", 502, R8A77995_CLK_S3D1),
141 DEF_MOD("hscif3", 517, R8A77995_CLK_S3D1C),
142 DEF_MOD("hscif0", 520, R8A77995_CLK_S3D1C),
143 DEF_MOD("thermal", 522, R8A77995_CLK_CP),
144 DEF_MOD("pwm", 523, R8A77995_CLK_S3D4C),
145 DEF_MOD("fcpvd1", 602, R8A77995_CLK_S1D2),
146 DEF_MOD("fcpvd0", 603, R8A77995_CLK_S1D2),
147 DEF_MOD("fcpvbs", 607, R8A77995_CLK_S0D1),
148 DEF_MOD("vspd1", 622, R8A77995_CLK_S1D2),
149 DEF_MOD("vspd0", 623, R8A77995_CLK_S1D2),
150 DEF_MOD("vspbs", 627, R8A77995_CLK_S0D1),
151 DEF_MOD("ehci0", 703, R8A77995_CLK_S3D2),
152 DEF_MOD("hsusb", 704, R8A77995_CLK_S3D2),
153 DEF_MOD("du1", 723, R8A77995_CLK_S1D1),
154 DEF_MOD("du0", 724, R8A77995_CLK_S1D1),
155 DEF_MOD("lvds", 727, R8A77995_CLK_S2D1),
156 DEF_MOD("vin4", 807, R8A77995_CLK_S1D2),
157 DEF_MOD("etheravb", 812, R8A77995_CLK_S3D2),
158 DEF_MOD("imr0", 823, R8A77995_CLK_S1D2),
159 DEF_MOD("gpio6", 906, R8A77995_CLK_S3D4),
160 DEF_MOD("gpio5", 907, R8A77995_CLK_S3D4),
161 DEF_MOD("gpio4", 908, R8A77995_CLK_S3D4),
162 DEF_MOD("gpio3", 909, R8A77995_CLK_S3D4),
163 DEF_MOD("gpio2", 910, R8A77995_CLK_S3D4),
164 DEF_MOD("gpio1", 911, R8A77995_CLK_S3D4),
165 DEF_MOD("gpio0", 912, R8A77995_CLK_S3D4),
166 DEF_MOD("can-fd", 914, R8A77995_CLK_S3D2),
167 DEF_MOD("can-if1", 915, R8A77995_CLK_S3D4),
168 DEF_MOD("can-if0", 916, R8A77995_CLK_S3D4),
169 DEF_MOD("rpc", 917, R8A77995_CLK_RPC),
170 DEF_MOD("i2c3", 928, R8A77995_CLK_S3D2),
171 DEF_MOD("i2c2", 929, R8A77995_CLK_S3D2),
172 DEF_MOD("i2c1", 930, R8A77995_CLK_S3D2),
173 DEF_MOD("i2c0", 931, R8A77995_CLK_S3D2),
174 DEF_MOD("ssi-all", 1005, R8A77995_CLK_S3D4),
175 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
176 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
177 DEF_MOD("scu-all", 1017, R8A77995_CLK_S3D4),
178 DEF_MOD("scu-dvc1", 1018, MOD_CLK_ID(1017)),
179 DEF_MOD("scu-dvc0", 1019, MOD_CLK_ID(1017)),
180 DEF_MOD("scu-ctu1-mix1", 1020, MOD_CLK_ID(1017)),
181 DEF_MOD("scu-ctu0-mix0", 1021, MOD_CLK_ID(1017)),
182 DEF_MOD("scu-src6", 1025, MOD_CLK_ID(1017)),
183 DEF_MOD("scu-src5", 1026, MOD_CLK_ID(1017)),
184 };
185
186 /*
187 * CPG Clock Data
188 */
189
190 /*
191 * MD19 EXTAL (MHz) PLL0 PLL1 PLL3
192 *--------------------------------------------------------------------
193 * 0 48 x 1 x250/4 x100/3 x100/3
194 * 1 48 x 1 x250/4 x100/3 x58/3
195 */
196 #define CPG_PLL_CONFIG_INDEX(md) (((md) & BIT(19)) >> 19)
197
198 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] = {
199 /* EXTAL div PLL1 mult/div PLL3 mult/div */
200 { 1, 100, 3, 100, 3, },
201 { 1, 100, 3, 58, 3, },
202 };
203
204 static const struct mstp_stop_table r8a77995_mstp_table[] = {
205 { 0x00200000, 0x0, 0x00200000, 0 },
206 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
207 { 0x340E2FDC, 0x2040, 0x340E2FDC, 0 },
208 { 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
209 { 0x80000184, 0x180, 0x80000184, 0 },
210 { 0xC3FFFFFF, 0x0, 0xC3FFFFFF, 0 },
211 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
212 { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
213 { 0x01F1FFF7, 0x0, 0x01F1FFF7, 0 },
214 { 0xFFFFFFFE, 0x0, 0xFFFFFFFE, 0 },
215 { 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
216 { 0x000000B7, 0x0, 0x000000B7, 0 },
217 };
218
r8a77995_get_pll_config(const u32 cpg_mode)219 static const void *r8a77995_get_pll_config(const u32 cpg_mode)
220 {
221 return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
222 }
223
224 static const struct cpg_mssr_info r8a77995_cpg_mssr_info = {
225 .core_clk = r8a77995_core_clks,
226 .core_clk_size = ARRAY_SIZE(r8a77995_core_clks),
227 .mod_clk = r8a77995_mod_clks,
228 .mod_clk_size = ARRAY_SIZE(r8a77995_mod_clks),
229 .mstp_table = r8a77995_mstp_table,
230 .mstp_table_size = ARRAY_SIZE(r8a77995_mstp_table),
231 .reset_node = "renesas,r8a77995-rst",
232 .mod_clk_base = MOD_CLK_BASE,
233 .clk_extal_id = CLK_EXTAL,
234 .clk_extalr_id = ~0,
235 .get_pll_config = r8a77995_get_pll_config,
236 };
237
238 static const struct udevice_id r8a77995_clk_ids[] = {
239 {
240 .compatible = "renesas,r8a77995-cpg-mssr",
241 .data = (ulong)&r8a77995_cpg_mssr_info
242 },
243 { }
244 };
245
246 U_BOOT_DRIVER(clk_r8a77995) = {
247 .name = "clk_r8a77995",
248 .id = UCLASS_CLK,
249 .of_match = r8a77995_clk_ids,
250 .priv_auto = sizeof(struct gen3_clk_priv),
251 .ops = &gen3_clk_ops,
252 .probe = gen3_clk_probe,
253 .remove = gen3_clk_remove,
254 };
255