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17f0ff3d LP |
1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* | |
3 | * RZ/G2L CPG driver | |
4 | * | |
5 | * Copyright (C) 2021 Renesas Electronics Corp. | |
6 | */ | |
7 | ||
8 | #include <linux/clk-provider.h> | |
9 | #include <linux/device.h> | |
10 | #include <linux/init.h> | |
11 | #include <linux/kernel.h> | |
12 | ||
13 | #include <dt-bindings/clock/r9a07g044-cpg.h> | |
14 | ||
0aae437a | 15 | #include "rzg2l-cpg.h" |
17f0ff3d LP |
16 | |
17 | enum clk_ids { | |
18 | /* Core Clock Outputs exported to DT */ | |
19 | LAST_DT_CORE_CLK = R9A07G044_OSCCLK, | |
20 | ||
21 | /* External Input Clocks */ | |
22 | CLK_EXTAL, | |
23 | ||
24 | /* Internal Core Clocks */ | |
25 | CLK_OSC_DIV1000, | |
26 | CLK_PLL1, | |
27 | CLK_PLL2, | |
28 | CLK_PLL2_DIV2, | |
29 | CLK_PLL2_DIV16, | |
30 | CLK_PLL2_DIV20, | |
31 | CLK_PLL3, | |
32 | CLK_PLL3_DIV2, | |
fd8c3f6c | 33 | CLK_PLL3_DIV2_4, |
668756f7 | 34 | CLK_PLL3_DIV2_4_2, |
17f0ff3d | 35 | CLK_PLL3_DIV4, |
17f0ff3d LP |
36 | CLK_PLL4, |
37 | CLK_PLL5, | |
38 | CLK_PLL5_DIV2, | |
39 | CLK_PLL6, | |
eb829e54 | 40 | CLK_P1_DIV2, |
17f0ff3d LP |
41 | |
42 | /* Module Clocks */ | |
43 | MOD_CLK_BASE, | |
44 | }; | |
45 | ||
46 | /* Divider tables */ | |
e93c1373 | 47 | static const struct clk_div_table dtable_1_32[] = { |
17f0ff3d LP |
48 | {0, 1}, |
49 | {1, 2}, | |
50 | {2, 4}, | |
51 | {3, 8}, | |
52 | {4, 32}, | |
e93c1373 | 53 | {0, 0}, |
17f0ff3d LP |
54 | }; |
55 | ||
56 | static const struct cpg_core_clk r9a07g044_core_clks[] __initconst = { | |
57 | /* External Clock Inputs */ | |
58 | DEF_INPUT("extal", CLK_EXTAL), | |
59 | ||
60 | /* Internal Core Clocks */ | |
61 | DEF_FIXED(".osc", R9A07G044_OSCCLK, CLK_EXTAL, 1, 1), | |
62 | DEF_FIXED(".osc_div1000", CLK_OSC_DIV1000, CLK_EXTAL, 1, 1000), | |
63 | DEF_SAMPLL(".pll1", CLK_PLL1, CLK_EXTAL, PLL146_CONF(0)), | |
64 | DEF_FIXED(".pll2", CLK_PLL2, CLK_EXTAL, 133, 2), | |
65 | DEF_FIXED(".pll3", CLK_PLL3, CLK_EXTAL, 133, 2), | |
66 | ||
67 | DEF_FIXED(".pll2_div2", CLK_PLL2_DIV2, CLK_PLL2, 1, 2), | |
68 | DEF_FIXED(".pll2_div16", CLK_PLL2_DIV16, CLK_PLL2, 1, 16), | |
69 | DEF_FIXED(".pll2_div20", CLK_PLL2_DIV20, CLK_PLL2, 1, 20), | |
70 | ||
71 | DEF_FIXED(".pll3_div2", CLK_PLL3_DIV2, CLK_PLL3, 1, 2), | |
fd8c3f6c | 72 | DEF_FIXED(".pll3_div2_4", CLK_PLL3_DIV2_4, CLK_PLL3_DIV2, 1, 4), |
668756f7 | 73 | DEF_FIXED(".pll3_div2_4_2", CLK_PLL3_DIV2_4_2, CLK_PLL3_DIV2_4, 1, 2), |
17f0ff3d | 74 | DEF_FIXED(".pll3_div4", CLK_PLL3_DIV4, CLK_PLL3, 1, 4), |
17f0ff3d LP |
75 | |
76 | /* Core output clk */ | |
77 | DEF_FIXED("I", R9A07G044_CLK_I, CLK_PLL1, 1, 1), | |
78 | DEF_DIV("P0", R9A07G044_CLK_P0, CLK_PLL2_DIV16, DIVPL2A, | |
e93c1373 | 79 | dtable_1_32, CLK_DIVIDER_HIWORD_MASK), |
17f0ff3d | 80 | DEF_FIXED("TSU", R9A07G044_CLK_TSU, CLK_PLL2_DIV20, 1, 1), |
fd8c3f6c | 81 | DEF_DIV("P1", R9A07G044_CLK_P1, CLK_PLL3_DIV2_4, |
e93c1373 | 82 | DIVPL3B, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), |
eb829e54 | 83 | DEF_FIXED("P1_DIV2", CLK_P1_DIV2, R9A07G044_CLK_P1, 1, 2), |
668756f7 BD |
84 | DEF_DIV("P2", R9A07G044_CLK_P2, CLK_PLL3_DIV2_4_2, |
85 | DIVPL3A, dtable_1_32, CLK_DIVIDER_HIWORD_MASK), | |
17f0ff3d LP |
86 | }; |
87 | ||
88 | static struct rzg2l_mod_clk r9a07g044_mod_clks[] = { | |
c3e67ad6 BD |
89 | DEF_MOD("gic", R9A07G044_GIC600_GICCLK, R9A07G044_CLK_P1, |
90 | 0x514, 0), | |
91 | DEF_MOD("ia55_pclk", R9A07G044_IA55_PCLK, R9A07G044_CLK_P2, | |
92 | 0x518, 0), | |
93 | DEF_MOD("ia55_clk", R9A07G044_IA55_CLK, R9A07G044_CLK_P1, | |
94 | 0x518, 1), | |
eb829e54 BD |
95 | DEF_MOD("dmac_aclk", R9A07G044_DMAC_ACLK, R9A07G044_CLK_P1, |
96 | 0x52c, 0), | |
97 | DEF_MOD("dmac_pclk", R9A07G044_DMAC_PCLK, CLK_P1_DIV2, | |
98 | 0x52c, 1), | |
d520af34 BD |
99 | DEF_MOD("ssi0_pclk", R9A07G044_SSI0_PCLK2, R9A07G044_CLK_P0, |
100 | 0x570, 0), | |
101 | DEF_MOD("ssi0_sfr", R9A07G044_SSI0_PCLK_SFR, R9A07G044_CLK_P0, | |
102 | 0x570, 1), | |
103 | DEF_MOD("ssi1_pclk", R9A07G044_SSI1_PCLK2, R9A07G044_CLK_P0, | |
104 | 0x570, 2), | |
105 | DEF_MOD("ssi1_sfr", R9A07G044_SSI1_PCLK_SFR, R9A07G044_CLK_P0, | |
106 | 0x570, 3), | |
107 | DEF_MOD("ssi2_pclk", R9A07G044_SSI2_PCLK2, R9A07G044_CLK_P0, | |
108 | 0x570, 4), | |
109 | DEF_MOD("ssi2_sfr", R9A07G044_SSI2_PCLK_SFR, R9A07G044_CLK_P0, | |
110 | 0x570, 5), | |
111 | DEF_MOD("ssi3_pclk", R9A07G044_SSI3_PCLK2, R9A07G044_CLK_P0, | |
112 | 0x570, 6), | |
113 | DEF_MOD("ssi3_sfr", R9A07G044_SSI3_PCLK_SFR, R9A07G044_CLK_P0, | |
114 | 0x570, 7), | |
03fa6e4b BD |
115 | DEF_MOD("usb0_host", R9A07G044_USB_U2H0_HCLK, R9A07G044_CLK_P1, |
116 | 0x578, 0), | |
117 | DEF_MOD("usb1_host", R9A07G044_USB_U2H1_HCLK, R9A07G044_CLK_P1, | |
118 | 0x578, 1), | |
119 | DEF_MOD("usb0_func", R9A07G044_USB_U2P_EXR_CPUCLK, R9A07G044_CLK_P1, | |
120 | 0x578, 2), | |
121 | DEF_MOD("usb_pclk", R9A07G044_USB_PCLK, R9A07G044_CLK_P1, | |
122 | 0x578, 3), | |
1962dd36 BD |
123 | DEF_MOD("i2c0", R9A07G044_I2C0_PCLK, R9A07G044_CLK_P0, |
124 | 0x580, 0), | |
125 | DEF_MOD("i2c1", R9A07G044_I2C1_PCLK, R9A07G044_CLK_P0, | |
126 | 0x580, 1), | |
127 | DEF_MOD("i2c2", R9A07G044_I2C2_PCLK, R9A07G044_CLK_P0, | |
128 | 0x580, 2), | |
129 | DEF_MOD("i2c3", R9A07G044_I2C3_PCLK, R9A07G044_CLK_P0, | |
130 | 0x580, 3), | |
c3e67ad6 BD |
131 | DEF_MOD("scif0", R9A07G044_SCIF0_CLK_PCK, R9A07G044_CLK_P0, |
132 | 0x584, 0), | |
133 | DEF_MOD("scif1", R9A07G044_SCIF1_CLK_PCK, R9A07G044_CLK_P0, | |
134 | 0x584, 1), | |
135 | DEF_MOD("scif2", R9A07G044_SCIF2_CLK_PCK, R9A07G044_CLK_P0, | |
136 | 0x584, 2), | |
137 | DEF_MOD("scif3", R9A07G044_SCIF3_CLK_PCK, R9A07G044_CLK_P0, | |
138 | 0x584, 3), | |
139 | DEF_MOD("scif4", R9A07G044_SCIF4_CLK_PCK, R9A07G044_CLK_P0, | |
140 | 0x584, 4), | |
141 | DEF_MOD("sci0", R9A07G044_SCI0_CLKP, R9A07G044_CLK_P0, | |
142 | 0x588, 0), | |
d85b82f0 LP |
143 | DEF_MOD("gpio", R9A07G044_GPIO_HCLK, R9A07G044_OSCCLK, |
144 | 0x598, 0), | |
c3e67ad6 BD |
145 | }; |
146 | ||
147 | static struct rzg2l_reset r9a07g044_resets[] = { | |
148 | DEF_RST(R9A07G044_GIC600_GICRESET_N, 0x814, 0), | |
149 | DEF_RST(R9A07G044_GIC600_DBG_GICRESET_N, 0x814, 1), | |
150 | DEF_RST(R9A07G044_IA55_RESETN, 0x818, 0), | |
eb829e54 BD |
151 | DEF_RST(R9A07G044_DMAC_ARESETN, 0x82c, 0), |
152 | DEF_RST(R9A07G044_DMAC_RST_ASYNC, 0x82c, 1), | |
d520af34 BD |
153 | DEF_RST(R9A07G044_SSI0_RST_M2_REG, 0x870, 0), |
154 | DEF_RST(R9A07G044_SSI1_RST_M2_REG, 0x870, 1), | |
155 | DEF_RST(R9A07G044_SSI2_RST_M2_REG, 0x870, 2), | |
156 | DEF_RST(R9A07G044_SSI3_RST_M2_REG, 0x870, 3), | |
03fa6e4b BD |
157 | DEF_RST(R9A07G044_USB_U2H0_HRESETN, 0x878, 0), |
158 | DEF_RST(R9A07G044_USB_U2H1_HRESETN, 0x878, 1), | |
159 | DEF_RST(R9A07G044_USB_U2P_EXL_SYSRST, 0x878, 2), | |
160 | DEF_RST(R9A07G044_USB_PRESETN, 0x878, 3), | |
1962dd36 BD |
161 | DEF_RST(R9A07G044_I2C0_MRST, 0x880, 0), |
162 | DEF_RST(R9A07G044_I2C1_MRST, 0x880, 1), | |
163 | DEF_RST(R9A07G044_I2C2_MRST, 0x880, 2), | |
164 | DEF_RST(R9A07G044_I2C3_MRST, 0x880, 3), | |
c3e67ad6 BD |
165 | DEF_RST(R9A07G044_SCIF0_RST_SYSTEM_N, 0x884, 0), |
166 | DEF_RST(R9A07G044_SCIF1_RST_SYSTEM_N, 0x884, 1), | |
167 | DEF_RST(R9A07G044_SCIF2_RST_SYSTEM_N, 0x884, 2), | |
168 | DEF_RST(R9A07G044_SCIF3_RST_SYSTEM_N, 0x884, 3), | |
169 | DEF_RST(R9A07G044_SCIF4_RST_SYSTEM_N, 0x884, 4), | |
170 | DEF_RST(R9A07G044_SCI0_RST, 0x888, 0), | |
d85b82f0 LP |
171 | DEF_RST(R9A07G044_GPIO_RSTN, 0x898, 0), |
172 | DEF_RST(R9A07G044_GPIO_PORT_RESETN, 0x898, 1), | |
173 | DEF_RST(R9A07G044_GPIO_SPARE_RESETN, 0x898, 2), | |
17f0ff3d LP |
174 | }; |
175 | ||
176 | static const unsigned int r9a07g044_crit_mod_clks[] __initconst = { | |
c3e67ad6 | 177 | MOD_CLK_BASE + R9A07G044_GIC600_GICCLK, |
17f0ff3d LP |
178 | }; |
179 | ||
180 | const struct rzg2l_cpg_info r9a07g044_cpg_info = { | |
181 | /* Core Clocks */ | |
182 | .core_clks = r9a07g044_core_clks, | |
183 | .num_core_clks = ARRAY_SIZE(r9a07g044_core_clks), | |
184 | .last_dt_core_clk = LAST_DT_CORE_CLK, | |
185 | .num_total_core_clks = MOD_CLK_BASE, | |
186 | ||
187 | /* Critical Module Clocks */ | |
188 | .crit_mod_clks = r9a07g044_crit_mod_clks, | |
189 | .num_crit_mod_clks = ARRAY_SIZE(r9a07g044_crit_mod_clks), | |
190 | ||
191 | /* Module Clocks */ | |
192 | .mod_clks = r9a07g044_mod_clks, | |
193 | .num_mod_clks = ARRAY_SIZE(r9a07g044_mod_clks), | |
c3e67ad6 BD |
194 | .num_hw_mod_clks = R9A07G044_TSU_PCLK + 1, |
195 | ||
196 | /* Resets */ | |
197 | .resets = r9a07g044_resets, | |
198 | .num_resets = ARRAY_SIZE(r9a07g044_resets), | |
17f0ff3d | 199 | }; |