2 * r8a7794 Clock Pulse Generator / Module Standby and Software Reset
4 * Copyright (C) 2017 Glider bvba
6 * Based on clk-rcar-gen2.c
8 * Copyright (C) 2013 Ideas On Board SPRL
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2 of the License.
15 #include <linux/device.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/soc/renesas/rcar-rst.h>
20 #include <dt-bindings/clock/r8a7794-cpg-mssr.h>
22 #include "renesas-cpg-mssr.h"
23 #include "rcar-gen2-cpg.h"
26 /* Core Clock Outputs exported to DT */
27 LAST_DT_CORE_CLK
= R8A7794_CLK_OSC
,
29 /* External Input Clocks */
33 /* Internal Core Clocks */
44 static const struct cpg_core_clk r8a7794_core_clks
[] __initconst
= {
45 /* External Clock Inputs */
46 DEF_INPUT("extal", CLK_EXTAL
),
47 DEF_INPUT("usb_extal", CLK_USB_EXTAL
),
49 /* Internal Core Clocks */
50 DEF_BASE(".main", CLK_MAIN
, CLK_TYPE_GEN2_MAIN
, CLK_EXTAL
),
51 DEF_BASE(".pll0", CLK_PLL0
, CLK_TYPE_GEN2_PLL0
, CLK_MAIN
),
52 DEF_BASE(".pll1", CLK_PLL1
, CLK_TYPE_GEN2_PLL1
, CLK_MAIN
),
53 DEF_BASE(".pll3", CLK_PLL3
, CLK_TYPE_GEN2_PLL3
, CLK_MAIN
),
55 DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2
, CLK_PLL1
, 2, 1),
57 /* Core Clock Outputs */
58 DEF_BASE("adsp", R8A7794_CLK_ADSP
, CLK_TYPE_GEN2_ADSP
, CLK_PLL1
),
59 DEF_BASE("sdh", R8A7794_CLK_SDH
, CLK_TYPE_GEN2_SDH
, CLK_PLL1
),
60 DEF_BASE("sd0", R8A7794_CLK_SD0
, CLK_TYPE_GEN2_SD0
, CLK_PLL1
),
61 DEF_BASE("qspi", R8A7794_CLK_QSPI
, CLK_TYPE_GEN2_QSPI
, CLK_PLL1_DIV2
),
62 DEF_BASE("rcan", R8A7794_CLK_RCAN
, CLK_TYPE_GEN2_RCAN
, CLK_USB_EXTAL
),
64 DEF_FIXED("z2", R8A7794_CLK_Z2
, CLK_PLL0
, 1, 1),
65 DEF_FIXED("zg", R8A7794_CLK_ZG
, CLK_PLL1
, 6, 1),
66 DEF_FIXED("zx", R8A7794_CLK_ZX
, CLK_PLL1
, 3, 1),
67 DEF_FIXED("zs", R8A7794_CLK_ZS
, CLK_PLL1
, 6, 1),
68 DEF_FIXED("hp", R8A7794_CLK_HP
, CLK_PLL1
, 12, 1),
69 DEF_FIXED("i", R8A7794_CLK_I
, CLK_PLL1
, 2, 1),
70 DEF_FIXED("b", R8A7794_CLK_B
, CLK_PLL1
, 12, 1),
71 DEF_FIXED("lb", R8A7794_CLK_LB
, CLK_PLL1
, 24, 1),
72 DEF_FIXED("p", R8A7794_CLK_P
, CLK_PLL1
, 24, 1),
73 DEF_FIXED("cl", R8A7794_CLK_CL
, CLK_PLL1
, 48, 1),
74 DEF_FIXED("cp", R8A7794_CLK_CP
, CLK_PLL1
, 48, 1),
75 DEF_FIXED("m2", R8A7794_CLK_M2
, CLK_PLL1
, 8, 1),
76 DEF_FIXED("zb3", R8A7794_CLK_ZB3
, CLK_PLL3
, 4, 1),
77 DEF_FIXED("zb3d2", R8A7794_CLK_ZB3D2
, CLK_PLL3
, 8, 1),
78 DEF_FIXED("ddr", R8A7794_CLK_DDR
, CLK_PLL3
, 8, 1),
79 DEF_FIXED("mp", R8A7794_CLK_MP
, CLK_PLL1_DIV2
, 15, 1),
80 DEF_FIXED("cpex", R8A7794_CLK_CPEX
, CLK_EXTAL
, 2, 1),
81 DEF_FIXED("r", R8A7794_CLK_R
, CLK_PLL1
, 49152, 1),
82 DEF_FIXED("osc", R8A7794_CLK_OSC
, CLK_PLL1
, 12288, 1),
84 DEF_DIV6P1("sd2", R8A7794_CLK_SD2
, CLK_PLL1_DIV2
, 0x078),
85 DEF_DIV6P1("sd3", R8A7794_CLK_SD3
, CLK_PLL1_DIV2
, 0x26c),
86 DEF_DIV6P1("mmc0", R8A7794_CLK_MMC0
, CLK_PLL1_DIV2
, 0x240),
89 static const struct mssr_mod_clk r8a7794_mod_clks
[] __initconst
= {
90 DEF_MOD("msiof0", 0, R8A7794_CLK_MP
),
91 DEF_MOD("vcp0", 101, R8A7794_CLK_ZS
),
92 DEF_MOD("vpc0", 103, R8A7794_CLK_ZS
),
93 DEF_MOD("jpu", 106, R8A7794_CLK_M2
),
94 DEF_MOD("tmu1", 111, R8A7794_CLK_P
),
95 DEF_MOD("3dg", 112, R8A7794_CLK_ZG
),
96 DEF_MOD("2d-dmac", 115, R8A7794_CLK_ZS
),
97 DEF_MOD("fdp1-0", 119, R8A7794_CLK_ZS
),
98 DEF_MOD("tmu3", 121, R8A7794_CLK_P
),
99 DEF_MOD("tmu2", 122, R8A7794_CLK_P
),
100 DEF_MOD("cmt0", 124, R8A7794_CLK_R
),
101 DEF_MOD("tmu0", 125, R8A7794_CLK_CP
),
102 DEF_MOD("vsp1du0", 128, R8A7794_CLK_ZS
),
103 DEF_MOD("vsp1-sy", 131, R8A7794_CLK_ZS
),
104 DEF_MOD("scifa2", 202, R8A7794_CLK_MP
),
105 DEF_MOD("scifa1", 203, R8A7794_CLK_MP
),
106 DEF_MOD("scifa0", 204, R8A7794_CLK_MP
),
107 DEF_MOD("msiof2", 205, R8A7794_CLK_MP
),
108 DEF_MOD("scifb0", 206, R8A7794_CLK_MP
),
109 DEF_MOD("scifb1", 207, R8A7794_CLK_MP
),
110 DEF_MOD("msiof1", 208, R8A7794_CLK_MP
),
111 DEF_MOD("scifb2", 216, R8A7794_CLK_MP
),
112 DEF_MOD("sys-dmac1", 218, R8A7794_CLK_ZS
),
113 DEF_MOD("sys-dmac0", 219, R8A7794_CLK_ZS
),
114 DEF_MOD("tpu0", 304, R8A7794_CLK_CP
),
115 DEF_MOD("sdhi3", 311, R8A7794_CLK_SD3
),
116 DEF_MOD("sdhi2", 312, R8A7794_CLK_SD2
),
117 DEF_MOD("sdhi0", 314, R8A7794_CLK_SD0
),
118 DEF_MOD("mmcif0", 315, R8A7794_CLK_MMC0
),
119 DEF_MOD("iic0", 318, R8A7794_CLK_HP
),
120 DEF_MOD("iic1", 323, R8A7794_CLK_HP
),
121 DEF_MOD("cmt1", 329, R8A7794_CLK_R
),
122 DEF_MOD("usbhs-dmac0", 330, R8A7794_CLK_HP
),
123 DEF_MOD("usbhs-dmac1", 331, R8A7794_CLK_HP
),
124 DEF_MOD("rwdt", 402, R8A7794_CLK_R
),
125 DEF_MOD("irqc", 407, R8A7794_CLK_CP
),
126 DEF_MOD("intc-sys", 408, R8A7794_CLK_ZS
),
127 DEF_MOD("audio-dmac0", 502, R8A7794_CLK_HP
),
128 DEF_MOD("adsp_mod", 506, R8A7794_CLK_ADSP
),
129 DEF_MOD("pwm", 523, R8A7794_CLK_P
),
130 DEF_MOD("usb-ehci", 703, R8A7794_CLK_MP
),
131 DEF_MOD("usbhs", 704, R8A7794_CLK_HP
),
132 DEF_MOD("hscif2", 713, R8A7794_CLK_ZS
),
133 DEF_MOD("scif5", 714, R8A7794_CLK_P
),
134 DEF_MOD("scif4", 715, R8A7794_CLK_P
),
135 DEF_MOD("hscif1", 716, R8A7794_CLK_ZS
),
136 DEF_MOD("hscif0", 717, R8A7794_CLK_ZS
),
137 DEF_MOD("scif3", 718, R8A7794_CLK_P
),
138 DEF_MOD("scif2", 719, R8A7794_CLK_P
),
139 DEF_MOD("scif1", 720, R8A7794_CLK_P
),
140 DEF_MOD("scif0", 721, R8A7794_CLK_P
),
141 DEF_MOD("du1", 723, R8A7794_CLK_ZX
),
142 DEF_MOD("du0", 724, R8A7794_CLK_ZX
),
143 DEF_MOD("ipmmu-sgx", 800, R8A7794_CLK_ZX
),
144 DEF_MOD("mlb", 802, R8A7794_CLK_HP
),
145 DEF_MOD("vin1", 810, R8A7794_CLK_ZG
),
146 DEF_MOD("vin0", 811, R8A7794_CLK_ZG
),
147 DEF_MOD("etheravb", 812, R8A7794_CLK_HP
),
148 DEF_MOD("ether", 813, R8A7794_CLK_P
),
149 DEF_MOD("gyro-adc", 901, R8A7794_CLK_P
),
150 DEF_MOD("gpio6", 905, R8A7794_CLK_CP
),
151 DEF_MOD("gpio5", 907, R8A7794_CLK_CP
),
152 DEF_MOD("gpio4", 908, R8A7794_CLK_CP
),
153 DEF_MOD("gpio3", 909, R8A7794_CLK_CP
),
154 DEF_MOD("gpio2", 910, R8A7794_CLK_CP
),
155 DEF_MOD("gpio1", 911, R8A7794_CLK_CP
),
156 DEF_MOD("gpio0", 912, R8A7794_CLK_CP
),
157 DEF_MOD("can1", 915, R8A7794_CLK_P
),
158 DEF_MOD("can0", 916, R8A7794_CLK_P
),
159 DEF_MOD("qspi_mod", 917, R8A7794_CLK_QSPI
),
160 DEF_MOD("i2c5", 925, R8A7794_CLK_HP
),
161 DEF_MOD("i2c4", 927, R8A7794_CLK_HP
),
162 DEF_MOD("i2c3", 928, R8A7794_CLK_HP
),
163 DEF_MOD("i2c2", 929, R8A7794_CLK_HP
),
164 DEF_MOD("i2c1", 930, R8A7794_CLK_HP
),
165 DEF_MOD("i2c0", 931, R8A7794_CLK_HP
),
166 DEF_MOD("ssi-all", 1005, R8A7794_CLK_P
),
167 DEF_MOD("ssi9", 1006, MOD_CLK_ID(1005)),
168 DEF_MOD("ssi8", 1007, MOD_CLK_ID(1005)),
169 DEF_MOD("ssi7", 1008, MOD_CLK_ID(1005)),
170 DEF_MOD("ssi6", 1009, MOD_CLK_ID(1005)),
171 DEF_MOD("ssi5", 1010, MOD_CLK_ID(1005)),
172 DEF_MOD("ssi4", 1011, MOD_CLK_ID(1005)),
173 DEF_MOD("ssi3", 1012, MOD_CLK_ID(1005)),
174 DEF_MOD("ssi2", 1013, MOD_CLK_ID(1005)),
175 DEF_MOD("ssi1", 1014, MOD_CLK_ID(1005)),
176 DEF_MOD("ssi0", 1015, MOD_CLK_ID(1005)),
177 DEF_MOD("scu-all", 1017, R8A7794_CLK_P
),
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 DEF_MOD("scu-src4", 1027, MOD_CLK_ID(1017)),
185 DEF_MOD("scu-src3", 1028, MOD_CLK_ID(1017)),
186 DEF_MOD("scu-src2", 1029, MOD_CLK_ID(1017)),
187 DEF_MOD("scu-src1", 1030, MOD_CLK_ID(1017)),
188 DEF_MOD("scifa3", 1106, R8A7794_CLK_MP
),
189 DEF_MOD("scifa4", 1107, R8A7794_CLK_MP
),
190 DEF_MOD("scifa5", 1108, R8A7794_CLK_MP
),
193 static const unsigned int r8a7794_crit_mod_clks
[] __initconst
= {
194 MOD_CLK_ID(402), /* RWDT */
195 MOD_CLK_ID(408), /* INTC-SYS (GIC) */
203 * MD EXTAL PLL0 PLL1 PLL3
204 * 14 13 19 (MHz) *1 *2
205 *---------------------------------------------------
206 * 0 0 1 15 x200/3 x208/2 x88
207 * 0 1 1 20 x150/3 x156/2 x66
208 * 1 0 1 26 / 2 x230/3 x240/2 x102
209 * 1 1 1 30 / 2 x200/3 x208/2 x88
211 * *1 : Table 7.5c indicates VCO output (PLL0 = VCO/3)
212 * *2 : Table 7.5c indicates VCO output (PLL1 = VCO/2)
214 #define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 13) | \
215 (((md) & BIT(13)) >> 13))
216 static const struct rcar_gen2_cpg_pll_config cpg_pll_configs
[4] __initconst
= {
219 { 2, 240, 102, 230 },
223 static int __init
r8a7794_cpg_mssr_init(struct device
*dev
)
225 const struct rcar_gen2_cpg_pll_config
*cpg_pll_config
;
229 error
= rcar_rst_read_mode_pins(&cpg_mode
);
233 cpg_pll_config
= &cpg_pll_configs
[CPG_PLL_CONFIG_INDEX(cpg_mode
)];
235 return rcar_gen2_cpg_init(cpg_pll_config
, 3, cpg_mode
);
238 const struct cpg_mssr_info r8a7794_cpg_mssr_info __initconst
= {
240 .core_clks
= r8a7794_core_clks
,
241 .num_core_clks
= ARRAY_SIZE(r8a7794_core_clks
),
242 .last_dt_core_clk
= LAST_DT_CORE_CLK
,
243 .num_total_core_clks
= MOD_CLK_BASE
,
246 .mod_clks
= r8a7794_mod_clks
,
247 .num_mod_clks
= ARRAY_SIZE(r8a7794_mod_clks
),
248 .num_hw_mod_clks
= 12 * 32,
250 /* Critical Module Clocks */
251 .crit_mod_clks
= r8a7794_crit_mod_clks
,
252 .num_crit_mod_clks
= ARRAY_SIZE(r8a7794_crit_mod_clks
),
255 .init
= r8a7794_cpg_mssr_init
,
256 .cpg_clk_register
= rcar_gen2_cpg_clk_register
,