Merge remote-tracking branch 'clk/clk-next'
[deliverable/linux.git] / drivers / clk / renesas / r8a7796-cpg-mssr.c
CommitLineData
e4e2d7c3
GU
1/*
2 * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
3 *
4 * Copyright (C) 2016 Glider bvba
5 *
6 * Based on r8a7795-cpg-mssr.c
7 *
8 * Copyright (C) 2015 Glider bvba
9 * Copyright (C) 2015 Renesas Electronics Corp.
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; version 2 of the License.
14 */
15
16#include <linux/device.h>
17#include <linux/init.h>
18#include <linux/kernel.h>
19
20#include <dt-bindings/clock/r8a7796-cpg-mssr.h>
21
22#include "renesas-cpg-mssr.h"
23#include "rcar-gen3-cpg.h"
24
25enum clk_ids {
26 /* Core Clock Outputs exported to DT */
27 LAST_DT_CORE_CLK = R8A7796_CLK_OSC,
28
29 /* External Input Clocks */
30 CLK_EXTAL,
31 CLK_EXTALR,
32
33 /* Internal Core Clocks */
34 CLK_MAIN,
35 CLK_PLL0,
36 CLK_PLL1,
37 CLK_PLL2,
38 CLK_PLL3,
39 CLK_PLL4,
40 CLK_PLL1_DIV2,
41 CLK_PLL1_DIV4,
42 CLK_S0,
43 CLK_S1,
44 CLK_S2,
45 CLK_S3,
46 CLK_SDSRC,
47 CLK_SSPSRC,
2570d400 48 CLK_RINT,
e4e2d7c3
GU
49
50 /* Module Clocks */
51 MOD_CLK_BASE
52};
53
54static const struct cpg_core_clk r8a7796_core_clks[] __initconst = {
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),
07496981 73 DEF_FIXED(".sdsrc", CLK_SDSRC, CLK_PLL1_DIV2, 2, 1),
e4e2d7c3
GU
74
75 /* Core Clock Outputs */
76 DEF_FIXED("ztr", R8A7796_CLK_ZTR, CLK_PLL1_DIV2, 6, 1),
77 DEF_FIXED("ztrd2", R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
78 DEF_FIXED("zt", R8A7796_CLK_ZT, CLK_PLL1_DIV2, 4, 1),
79 DEF_FIXED("zx", R8A7796_CLK_ZX, CLK_PLL1_DIV2, 2, 1),
80 DEF_FIXED("s0d1", R8A7796_CLK_S0D1, CLK_S0, 1, 1),
81 DEF_FIXED("s0d2", R8A7796_CLK_S0D2, CLK_S0, 2, 1),
82 DEF_FIXED("s0d3", R8A7796_CLK_S0D3, CLK_S0, 3, 1),
83 DEF_FIXED("s0d4", R8A7796_CLK_S0D4, CLK_S0, 4, 1),
84 DEF_FIXED("s0d6", R8A7796_CLK_S0D6, CLK_S0, 6, 1),
85 DEF_FIXED("s0d8", R8A7796_CLK_S0D8, CLK_S0, 8, 1),
86 DEF_FIXED("s0d12", R8A7796_CLK_S0D12, CLK_S0, 12, 1),
87 DEF_FIXED("s1d1", R8A7796_CLK_S1D1, CLK_S1, 1, 1),
88 DEF_FIXED("s1d2", R8A7796_CLK_S1D2, CLK_S1, 2, 1),
89 DEF_FIXED("s1d4", R8A7796_CLK_S1D4, CLK_S1, 4, 1),
90 DEF_FIXED("s2d1", R8A7796_CLK_S2D1, CLK_S2, 1, 1),
91 DEF_FIXED("s2d2", R8A7796_CLK_S2D2, CLK_S2, 2, 1),
92 DEF_FIXED("s2d4", R8A7796_CLK_S2D4, CLK_S2, 4, 1),
93 DEF_FIXED("s3d1", R8A7796_CLK_S3D1, CLK_S3, 1, 1),
94 DEF_FIXED("s3d2", R8A7796_CLK_S3D2, CLK_S3, 2, 1),
95 DEF_FIXED("s3d4", R8A7796_CLK_S3D4, CLK_S3, 4, 1),
96
07496981
SH
97 DEF_GEN3_SD("sd0", R8A7796_CLK_SD0, CLK_SDSRC, 0x0074),
98 DEF_GEN3_SD("sd1", R8A7796_CLK_SD1, CLK_SDSRC, 0x0078),
99 DEF_GEN3_SD("sd2", R8A7796_CLK_SD2, CLK_SDSRC, 0x0268),
100 DEF_GEN3_SD("sd3", R8A7796_CLK_SD3, CLK_SDSRC, 0x026c),
101
e4e2d7c3
GU
102 DEF_FIXED("cl", R8A7796_CLK_CL, CLK_PLL1_DIV2, 48, 1),
103 DEF_FIXED("cp", R8A7796_CLK_CP, CLK_EXTAL, 2, 1),
2570d400
GU
104
105 DEF_DIV6_RO("osc", R8A7796_CLK_OSC, CLK_EXTAL, CPG_RCKCR, 8),
106 DEF_DIV6_RO("r_int", CLK_RINT, CLK_EXTAL, CPG_RCKCR, 32),
107
108 DEF_BASE("r", R8A7796_CLK_R, CLK_TYPE_GEN3_R, CLK_RINT),
e4e2d7c3
GU
109};
110
111static const struct mssr_mod_clk r8a7796_mod_clks[] __initconst = {
112 DEF_MOD("scif2", 310, R8A7796_CLK_S3D4),
07496981
SH
113 DEF_MOD("sdif3", 311, R8A7796_CLK_SD3),
114 DEF_MOD("sdif2", 312, R8A7796_CLK_SD2),
115 DEF_MOD("sdif1", 313, R8A7796_CLK_SD1),
116 DEF_MOD("sdif0", 314, R8A7796_CLK_SD0),
b51d5275 117 DEF_MOD("rwdt0", 402, R8A7796_CLK_R),
e4e2d7c3 118 DEF_MOD("intc-ap", 408, R8A7796_CLK_S3D1),
4e09508a
TK
119 DEF_MOD("gpio7", 905, R8A7796_CLK_S3D4),
120 DEF_MOD("gpio6", 906, R8A7796_CLK_S3D4),
121 DEF_MOD("gpio5", 907, R8A7796_CLK_S3D4),
122 DEF_MOD("gpio4", 908, R8A7796_CLK_S3D4),
123 DEF_MOD("gpio3", 909, R8A7796_CLK_S3D4),
124 DEF_MOD("gpio2", 910, R8A7796_CLK_S3D4),
125 DEF_MOD("gpio1", 911, R8A7796_CLK_S3D4),
126 DEF_MOD("gpio0", 912, R8A7796_CLK_S3D4),
e4e2d7c3
GU
127};
128
129static const unsigned int r8a7796_crit_mod_clks[] __initconst = {
130 MOD_CLK_ID(408), /* INTC-AP (GIC) */
131};
132
133
134/*
135 * CPG Clock Data
136 */
137
138/*
139 * MD EXTAL PLL0 PLL1 PLL2 PLL3 PLL4
140 * 14 13 19 17 (MHz)
141 *-------------------------------------------------------------------
142 * 0 0 0 0 16.66 x 1 x180 x192 x144 x192 x144
143 * 0 0 0 1 16.66 x 1 x180 x192 x144 x128 x144
144 * 0 0 1 0 Prohibited setting
145 * 0 0 1 1 16.66 x 1 x180 x192 x144 x192 x144
146 * 0 1 0 0 20 x 1 x150 x160 x120 x160 x120
147 * 0 1 0 1 20 x 1 x150 x160 x120 x106 x120
148 * 0 1 1 0 Prohibited setting
149 * 0 1 1 1 20 x 1 x150 x160 x120 x160 x120
150 * 1 0 0 0 25 x 1 x120 x128 x96 x128 x96
151 * 1 0 0 1 25 x 1 x120 x128 x96 x84 x96
152 * 1 0 1 0 Prohibited setting
153 * 1 0 1 1 25 x 1 x120 x128 x96 x128 x96
154 * 1 1 0 0 33.33 / 2 x180 x192 x144 x192 x144
155 * 1 1 0 1 33.33 / 2 x180 x192 x144 x128 x144
156 * 1 1 1 0 Prohibited setting
157 * 1 1 1 1 33.33 / 2 x180 x192 x144 x192 x144
158 */
159#define CPG_PLL_CONFIG_INDEX(md) ((((md) & BIT(14)) >> 11) | \
160 (((md) & BIT(13)) >> 11) | \
161 (((md) & BIT(19)) >> 18) | \
162 (((md) & BIT(17)) >> 17))
163
164static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] __initconst = {
165 /* EXTAL div PLL1 mult PLL3 mult */
166 { 1, 192, 192, },
167 { 1, 192, 128, },
168 { 0, /* Prohibited setting */ },
169 { 1, 192, 192, },
170 { 1, 160, 160, },
171 { 1, 160, 106, },
172 { 0, /* Prohibited setting */ },
173 { 1, 160, 160, },
174 { 1, 128, 128, },
175 { 1, 128, 84, },
176 { 0, /* Prohibited setting */ },
177 { 1, 128, 128, },
178 { 2, 192, 192, },
179 { 2, 192, 128, },
180 { 0, /* Prohibited setting */ },
181 { 2, 192, 192, },
182};
183
184static int __init r8a7796_cpg_mssr_init(struct device *dev)
185{
186 const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
187 u32 cpg_mode = rcar_gen3_read_mode_pins();
188
189 cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
190 if (!cpg_pll_config->extal_div) {
191 dev_err(dev, "Prohibited setting (cpg_mode=0x%x)\n", cpg_mode);
192 return -EINVAL;
193 }
194
195 return rcar_gen3_cpg_init(cpg_pll_config, CLK_EXTALR);
196}
197
198const struct cpg_mssr_info r8a7796_cpg_mssr_info __initconst = {
199 /* Core Clocks */
200 .core_clks = r8a7796_core_clks,
201 .num_core_clks = ARRAY_SIZE(r8a7796_core_clks),
202 .last_dt_core_clk = LAST_DT_CORE_CLK,
203 .num_total_core_clks = MOD_CLK_BASE,
204
205 /* Module Clocks */
206 .mod_clks = r8a7796_mod_clks,
207 .num_mod_clks = ARRAY_SIZE(r8a7796_mod_clks),
208 .num_hw_mod_clks = 12 * 32,
209
210 /* Critical Module Clocks */
211 .crit_mod_clks = r8a7796_crit_mod_clks,
212 .num_crit_mod_clks = ARRAY_SIZE(r8a7796_crit_mod_clks),
213
214 /* Callbacks */
215 .init = r8a7796_cpg_mssr_init,
216 .cpg_clk_register = rcar_gen3_cpg_clk_register,
217};
This page took 0.050066 seconds and 5 git commands to generate.