1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * r8a77470 Clock Pulse Generator / Module Standby and Software Reset |
4 | * |
5 | * Copyright (C) 2018 Renesas Electronics Corp. |
6 | */ |
7 | |
8 | #include <linux/device.h> |
9 | #include <linux/init.h> |
10 | #include <linux/kernel.h> |
11 | #include <linux/soc/renesas/rcar-rst.h> |
12 | |
13 | #include <dt-bindings/clock/r8a77470-cpg-mssr.h> |
14 | |
15 | #include "renesas-cpg-mssr.h" |
16 | #include "rcar-gen2-cpg.h" |
17 | |
18 | enum clk_ids { |
19 | /* Core Clock Outputs exported to DT */ |
20 | LAST_DT_CORE_CLK = R8A77470_CLK_OSC, |
21 | |
22 | /* External Input Clocks */ |
23 | CLK_EXTAL, |
24 | CLK_USB_EXTAL, |
25 | |
26 | /* Internal Core Clocks */ |
27 | CLK_MAIN, |
28 | CLK_PLL0, |
29 | CLK_PLL1, |
30 | CLK_PLL3, |
31 | CLK_PLL1_DIV2, |
32 | |
33 | /* Module Clocks */ |
34 | MOD_CLK_BASE |
35 | }; |
36 | |
37 | static const struct cpg_core_clk r8a77470_core_clks[] __initconst = { |
38 | /* External Clock Inputs */ |
39 | DEF_INPUT("extal" , CLK_EXTAL), |
40 | DEF_INPUT("usb_extal" , CLK_USB_EXTAL), |
41 | |
42 | /* Internal Core Clocks */ |
43 | DEF_BASE(".main" , CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL), |
44 | DEF_BASE(".pll0" , CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN), |
45 | DEF_BASE(".pll1" , CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN), |
46 | DEF_BASE(".pll3" , CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN), |
47 | |
48 | DEF_FIXED(".pll1_div2" , CLK_PLL1_DIV2, CLK_PLL1, 2, 1), |
49 | |
50 | /* Core Clock Outputs */ |
51 | DEF_BASE("sdh" , R8A77470_CLK_SDH, CLK_TYPE_GEN2_SDH, CLK_PLL1), |
52 | DEF_BASE("sd0" , R8A77470_CLK_SD0, CLK_TYPE_GEN2_SD0, CLK_PLL1), |
53 | DEF_BASE("sd1" , R8A77470_CLK_SD1, CLK_TYPE_GEN2_SD1, CLK_PLL1), |
54 | DEF_BASE("qspi" , R8A77470_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2), |
55 | DEF_BASE("rcan" , R8A77470_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL), |
56 | |
57 | DEF_FIXED("z2" , R8A77470_CLK_Z2, CLK_PLL0, 1, 1), |
58 | DEF_FIXED("zx" , R8A77470_CLK_ZX, CLK_PLL1, 3, 1), |
59 | DEF_FIXED("zs" , R8A77470_CLK_ZS, CLK_PLL1, 6, 1), |
60 | DEF_FIXED("hp" , R8A77470_CLK_HP, CLK_PLL1, 12, 1), |
61 | DEF_FIXED("b" , R8A77470_CLK_B, CLK_PLL1, 12, 1), |
62 | DEF_FIXED("lb" , R8A77470_CLK_LB, CLK_PLL1, 24, 1), |
63 | DEF_FIXED("p" , R8A77470_CLK_P, CLK_PLL1, 24, 1), |
64 | DEF_FIXED("cl" , R8A77470_CLK_CL, CLK_PLL1, 48, 1), |
65 | DEF_FIXED("cp" , R8A77470_CLK_CP, CLK_PLL1, 48, 1), |
66 | DEF_FIXED("m2" , R8A77470_CLK_M2, CLK_PLL1, 8, 1), |
67 | DEF_FIXED("zb3" , R8A77470_CLK_ZB3, CLK_PLL3, 4, 1), |
68 | DEF_FIXED("mp" , R8A77470_CLK_MP, CLK_PLL1_DIV2, 15, 1), |
69 | DEF_FIXED("cpex" , R8A77470_CLK_CPEX, CLK_EXTAL, 2, 1), |
70 | DEF_FIXED("r" , R8A77470_CLK_R, CLK_PLL1, 49152, 1), |
71 | DEF_FIXED("osc" , R8A77470_CLK_OSC, CLK_PLL1, 12288, 1), |
72 | |
73 | DEF_DIV6P1("sd2" , R8A77470_CLK_SD2, CLK_PLL1_DIV2, 0x078), |
74 | }; |
75 | |
76 | static const struct mssr_mod_clk r8a77470_mod_clks[] __initconst = { |
77 | DEF_MOD("msiof0" , 0, R8A77470_CLK_MP), |
78 | DEF_MOD("vcp0" , 101, R8A77470_CLK_ZS), |
79 | DEF_MOD("vpc0" , 103, R8A77470_CLK_ZS), |
80 | DEF_MOD("tmu1" , 111, R8A77470_CLK_P), |
81 | DEF_MOD("3dg" , 112, R8A77470_CLK_ZS), |
82 | DEF_MOD("2d-dmac" , 115, R8A77470_CLK_ZS), |
83 | DEF_MOD("fdp1-0" , 119, R8A77470_CLK_ZS), |
84 | DEF_MOD("tmu3" , 121, R8A77470_CLK_P), |
85 | DEF_MOD("tmu2" , 122, R8A77470_CLK_P), |
86 | DEF_MOD("cmt0" , 124, R8A77470_CLK_R), |
87 | DEF_MOD("vsp1du0" , 128, R8A77470_CLK_ZS), |
88 | DEF_MOD("vsps" , 131, R8A77470_CLK_ZS), |
89 | DEF_MOD("msiof2" , 205, R8A77470_CLK_MP), |
90 | DEF_MOD("msiof1" , 208, R8A77470_CLK_MP), |
91 | DEF_MOD("sys-dmac1" , 218, R8A77470_CLK_ZS), |
92 | DEF_MOD("sys-dmac0" , 219, R8A77470_CLK_ZS), |
93 | DEF_MOD("sdhi2" , 312, R8A77470_CLK_SD2), |
94 | DEF_MOD("sdhi1" , 313, R8A77470_CLK_SD1), |
95 | DEF_MOD("sdhi0" , 314, R8A77470_CLK_SD0), |
96 | DEF_MOD("usbhs-dmac0-ch1" , 326, R8A77470_CLK_HP), |
97 | DEF_MOD("usbhs-dmac1-ch1" , 327, R8A77470_CLK_HP), |
98 | DEF_MOD("cmt1" , 329, R8A77470_CLK_R), |
99 | DEF_MOD("usbhs-dmac0-ch0" , 330, R8A77470_CLK_HP), |
100 | DEF_MOD("usbhs-dmac1-ch0" , 331, R8A77470_CLK_HP), |
101 | DEF_MOD("rwdt" , 402, R8A77470_CLK_R), |
102 | DEF_MOD("irqc" , 407, R8A77470_CLK_CP), |
103 | DEF_MOD("intc-sys" , 408, R8A77470_CLK_ZS), |
104 | DEF_MOD("audio-dmac0" , 502, R8A77470_CLK_HP), |
105 | DEF_MOD("pwm" , 523, R8A77470_CLK_P), |
106 | DEF_MOD("usb-ehci-0" , 703, R8A77470_CLK_MP), |
107 | DEF_MOD("usbhs-0" , 704, R8A77470_CLK_HP), |
108 | DEF_MOD("usb-ehci-1" , 705, R8A77470_CLK_MP), |
109 | DEF_MOD("usbhs-1" , 706, R8A77470_CLK_HP), |
110 | DEF_MOD("hscif2" , 713, R8A77470_CLK_ZS), |
111 | DEF_MOD("scif5" , 714, R8A77470_CLK_P), |
112 | DEF_MOD("scif4" , 715, R8A77470_CLK_P), |
113 | DEF_MOD("hscif1" , 716, R8A77470_CLK_ZS), |
114 | DEF_MOD("hscif0" , 717, R8A77470_CLK_ZS), |
115 | DEF_MOD("scif3" , 718, R8A77470_CLK_P), |
116 | DEF_MOD("scif2" , 719, R8A77470_CLK_P), |
117 | DEF_MOD("scif1" , 720, R8A77470_CLK_P), |
118 | DEF_MOD("scif0" , 721, R8A77470_CLK_P), |
119 | DEF_MOD("du1" , 723, R8A77470_CLK_ZX), |
120 | DEF_MOD("du0" , 724, R8A77470_CLK_ZX), |
121 | DEF_MOD("ipmmu-sgx" , 800, R8A77470_CLK_ZX), |
122 | DEF_MOD("etheravb" , 812, R8A77470_CLK_HP), |
123 | DEF_MOD("ether" , 813, R8A77470_CLK_P), |
124 | DEF_MOD("gpio5" , 907, R8A77470_CLK_CP), |
125 | DEF_MOD("gpio4" , 908, R8A77470_CLK_CP), |
126 | DEF_MOD("gpio3" , 909, R8A77470_CLK_CP), |
127 | DEF_MOD("gpio2" , 910, R8A77470_CLK_CP), |
128 | DEF_MOD("gpio1" , 911, R8A77470_CLK_CP), |
129 | DEF_MOD("gpio0" , 912, R8A77470_CLK_CP), |
130 | DEF_MOD("can1" , 915, R8A77470_CLK_P), |
131 | DEF_MOD("can0" , 916, R8A77470_CLK_P), |
132 | DEF_MOD("qspi_mod-1" , 917, R8A77470_CLK_QSPI), |
133 | DEF_MOD("qspi_mod-0" , 918, R8A77470_CLK_QSPI), |
134 | DEF_MOD("i2c4" , 927, R8A77470_CLK_HP), |
135 | DEF_MOD("i2c3" , 928, R8A77470_CLK_HP), |
136 | DEF_MOD("i2c2" , 929, R8A77470_CLK_HP), |
137 | DEF_MOD("i2c1" , 930, R8A77470_CLK_HP), |
138 | DEF_MOD("i2c0" , 931, R8A77470_CLK_HP), |
139 | DEF_MOD("ssi-all" , 1005, R8A77470_CLK_P), |
140 | DEF_MOD("ssi9" , 1006, MOD_CLK_ID(1005)), |
141 | DEF_MOD("ssi8" , 1007, MOD_CLK_ID(1005)), |
142 | DEF_MOD("ssi7" , 1008, MOD_CLK_ID(1005)), |
143 | DEF_MOD("ssi6" , 1009, MOD_CLK_ID(1005)), |
144 | DEF_MOD("ssi5" , 1010, MOD_CLK_ID(1005)), |
145 | DEF_MOD("ssi4" , 1011, MOD_CLK_ID(1005)), |
146 | DEF_MOD("ssi3" , 1012, MOD_CLK_ID(1005)), |
147 | DEF_MOD("ssi2" , 1013, MOD_CLK_ID(1005)), |
148 | DEF_MOD("ssi1" , 1014, MOD_CLK_ID(1005)), |
149 | DEF_MOD("ssi0" , 1015, MOD_CLK_ID(1005)), |
150 | DEF_MOD("scu-all" , 1017, R8A77470_CLK_P), |
151 | DEF_MOD("scu-dvc1" , 1018, MOD_CLK_ID(1017)), |
152 | DEF_MOD("scu-dvc0" , 1019, MOD_CLK_ID(1017)), |
153 | DEF_MOD("scu-ctu1-mix1" , 1020, MOD_CLK_ID(1017)), |
154 | DEF_MOD("scu-ctu0-mix0" , 1021, MOD_CLK_ID(1017)), |
155 | DEF_MOD("scu-src6" , 1025, MOD_CLK_ID(1017)), |
156 | DEF_MOD("scu-src5" , 1026, MOD_CLK_ID(1017)), |
157 | DEF_MOD("scu-src4" , 1027, MOD_CLK_ID(1017)), |
158 | DEF_MOD("scu-src3" , 1028, MOD_CLK_ID(1017)), |
159 | DEF_MOD("scu-src2" , 1029, MOD_CLK_ID(1017)), |
160 | DEF_MOD("scu-src1" , 1030, MOD_CLK_ID(1017)), |
161 | }; |
162 | |
163 | static const unsigned int r8a77470_crit_mod_clks[] __initconst = { |
164 | MOD_CLK_ID(402), /* RWDT */ |
165 | MOD_CLK_ID(408), /* INTC-SYS (GIC) */ |
166 | }; |
167 | |
168 | /* |
169 | * CPG Clock Data |
170 | */ |
171 | |
172 | /* |
173 | * MD EXTAL PLL0 PLL1 PLL3 |
174 | * 14 13 (MHz) *1 *2 |
175 | *--------------------------------------------------- |
176 | * 0 0 20 x80 x78 x50 |
177 | * 0 1 26 x60 x60 x56 |
178 | * 1 0 Prohibited setting |
179 | * 1 1 30 x52 x52 x50 |
180 | * |
181 | * *1 : Table 7.4 indicates VCO output (PLL0 = VCO) |
182 | * *2 : Table 7.4 indicates VCO output (PLL1 = VCO) |
183 | */ |
184 | #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \ |
185 | (((md) & BIT(13)) >> 13)) |
186 | |
187 | static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[4] __initconst = { |
188 | /* EXTAL div PLL1 mult x2 PLL3 mult */ |
189 | { 1, 156, 50, }, |
190 | { 1, 120, 56, }, |
191 | { /* Invalid*/ }, |
192 | { 1, 104, 50, }, |
193 | }; |
194 | |
195 | static int __init r8a77470_cpg_mssr_init(struct device *dev) |
196 | { |
197 | const struct rcar_gen2_cpg_pll_config *cpg_pll_config; |
198 | u32 cpg_mode; |
199 | int error; |
200 | |
201 | error = rcar_rst_read_mode_pins(mode: &cpg_mode); |
202 | if (error) |
203 | return error; |
204 | |
205 | cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)]; |
206 | |
207 | return rcar_gen2_cpg_init(config: cpg_pll_config, pll0_div: 2, mode: cpg_mode); |
208 | } |
209 | |
210 | const struct cpg_mssr_info r8a77470_cpg_mssr_info __initconst = { |
211 | /* Core Clocks */ |
212 | .core_clks = r8a77470_core_clks, |
213 | .num_core_clks = ARRAY_SIZE(r8a77470_core_clks), |
214 | .last_dt_core_clk = LAST_DT_CORE_CLK, |
215 | .num_total_core_clks = MOD_CLK_BASE, |
216 | |
217 | /* Module Clocks */ |
218 | .mod_clks = r8a77470_mod_clks, |
219 | .num_mod_clks = ARRAY_SIZE(r8a77470_mod_clks), |
220 | .num_hw_mod_clks = 12 * 32, |
221 | |
222 | /* Critical Module Clocks */ |
223 | .crit_mod_clks = r8a77470_crit_mod_clks, |
224 | .num_crit_mod_clks = ARRAY_SIZE(r8a77470_crit_mod_clks), |
225 | |
226 | /* Callbacks */ |
227 | .init = r8a77470_cpg_mssr_init, |
228 | .cpg_clk_register = rcar_gen2_cpg_clk_register, |
229 | }; |
230 | |