1 /* 2 * Copyright (c) 2017 Rockchip Electronics Co. Ltd. 3 * Author: Elaine <zhangqing@rock-chips.com> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 */ 15 16 #include <linux/clk-provider.h> 17 #include <linux/io.h> 18 #include <linux/of.h> 19 #include <linux/of_address.h> 20 #include <linux/syscore_ops.h> 21 #include <dt-bindings/clock/rk3128-cru.h> 22 #include "clk.h" 23 24 #define RK3128_GRF_SOC_STATUS0 0x14c 25 26 enum rk3128_plls { 27 apll, dpll, cpll, gpll, 28 }; 29 30 static struct rockchip_pll_rate_table rk3128_pll_rates[] = { 31 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */ 32 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0), 33 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0), 34 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0), 35 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0), 36 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0), 37 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0), 38 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0), 39 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0), 40 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0), 41 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0), 42 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0), 43 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0), 44 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0), 45 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0), 46 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0), 47 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0), 48 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0), 49 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0), 50 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0), 51 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0), 52 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0), 53 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0), 54 RK3036_PLL_RATE(984000000, 1, 82, 2, 1, 1, 0), 55 RK3036_PLL_RATE(960000000, 1, 80, 2, 1, 1, 0), 56 RK3036_PLL_RATE(936000000, 1, 78, 2, 1, 1, 0), 57 RK3036_PLL_RATE(912000000, 1, 76, 2, 1, 1, 0), 58 RK3036_PLL_RATE(900000000, 4, 300, 2, 1, 1, 0), 59 RK3036_PLL_RATE(888000000, 1, 74, 2, 1, 1, 0), 60 RK3036_PLL_RATE(864000000, 1, 72, 2, 1, 1, 0), 61 RK3036_PLL_RATE(840000000, 1, 70, 2, 1, 1, 0), 62 RK3036_PLL_RATE(816000000, 1, 68, 2, 1, 1, 0), 63 RK3036_PLL_RATE(800000000, 6, 400, 2, 1, 1, 0), 64 RK3036_PLL_RATE(700000000, 6, 350, 2, 1, 1, 0), 65 RK3036_PLL_RATE(696000000, 1, 58, 2, 1, 1, 0), 66 RK3036_PLL_RATE(600000000, 1, 75, 3, 1, 1, 0), 67 RK3036_PLL_RATE(594000000, 2, 99, 2, 1, 1, 0), 68 RK3036_PLL_RATE(504000000, 1, 63, 3, 1, 1, 0), 69 RK3036_PLL_RATE(500000000, 6, 250, 2, 1, 1, 0), 70 RK3036_PLL_RATE(408000000, 1, 68, 2, 2, 1, 0), 71 RK3036_PLL_RATE(312000000, 1, 52, 2, 2, 1, 0), 72 RK3036_PLL_RATE(216000000, 1, 72, 4, 2, 1, 0), 73 RK3036_PLL_RATE(96000000, 1, 64, 4, 4, 1, 0), 74 { /* sentinel */ }, 75 }; 76 77 #define RK3128_DIV_CPU_MASK 0x1f 78 #define RK3128_DIV_CPU_SHIFT 8 79 80 #define RK3128_DIV_PERI_MASK 0xf 81 #define RK3128_DIV_PERI_SHIFT 0 82 #define RK3128_DIV_ACLK_MASK 0x7 83 #define RK3128_DIV_ACLK_SHIFT 4 84 #define RK3128_DIV_HCLK_MASK 0x3 85 #define RK3128_DIV_HCLK_SHIFT 8 86 #define RK3128_DIV_PCLK_MASK 0x7 87 #define RK3128_DIV_PCLK_SHIFT 12 88 89 #define RK3128_CLKSEL1(_core_aclk_div, _pclk_dbg_div) \ 90 { \ 91 .reg = RK2928_CLKSEL_CON(1), \ 92 .val = HIWORD_UPDATE(_pclk_dbg_div, RK3128_DIV_PERI_MASK, \ 93 RK3128_DIV_PERI_SHIFT) | \ 94 HIWORD_UPDATE(_core_aclk_div, RK3128_DIV_ACLK_MASK, \ 95 RK3128_DIV_ACLK_SHIFT), \ 96 } 97 98 #define RK3128_CPUCLK_RATE(_prate, _core_aclk_div, _pclk_dbg_div) \ 99 { \ 100 .prate = _prate, \ 101 .divs = { \ 102 RK3128_CLKSEL1(_core_aclk_div, _pclk_dbg_div), \ 103 }, \ 104 } 105 106 static struct rockchip_cpuclk_rate_table rk3128_cpuclk_rates[] __initdata = { 107 RK3128_CPUCLK_RATE(1800000000, 1, 7), 108 RK3128_CPUCLK_RATE(1704000000, 1, 7), 109 RK3128_CPUCLK_RATE(1608000000, 1, 7), 110 RK3128_CPUCLK_RATE(1512000000, 1, 7), 111 RK3128_CPUCLK_RATE(1488000000, 1, 5), 112 RK3128_CPUCLK_RATE(1416000000, 1, 5), 113 RK3128_CPUCLK_RATE(1392000000, 1, 5), 114 RK3128_CPUCLK_RATE(1296000000, 1, 5), 115 RK3128_CPUCLK_RATE(1200000000, 1, 5), 116 RK3128_CPUCLK_RATE(1104000000, 1, 5), 117 RK3128_CPUCLK_RATE(1008000000, 1, 5), 118 RK3128_CPUCLK_RATE(912000000, 1, 5), 119 RK3128_CPUCLK_RATE(816000000, 1, 3), 120 RK3128_CPUCLK_RATE(696000000, 1, 3), 121 RK3128_CPUCLK_RATE(600000000, 1, 3), 122 RK3128_CPUCLK_RATE(408000000, 1, 1), 123 RK3128_CPUCLK_RATE(312000000, 1, 1), 124 RK3128_CPUCLK_RATE(216000000, 1, 1), 125 RK3128_CPUCLK_RATE(96000000, 1, 1), 126 }; 127 128 static const struct rockchip_cpuclk_reg_data rk3128_cpuclk_data = { 129 .core_reg = RK2928_CLKSEL_CON(0), 130 .div_core_shift = 0, 131 .div_core_mask = 0x1f, 132 .mux_core_alt = 1, 133 .mux_core_main = 0, 134 .mux_core_shift = 7, 135 .mux_core_mask = 0x1, 136 }; 137 138 PNAME(mux_pll_p) = { "clk_24m", "xin24m" }; 139 140 PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_div2_ddr" }; 141 PNAME(mux_armclk_p) = { "apll_core", "gpll_div2_core" }; 142 PNAME(mux_usb480m_p) = { "usb480m_phy", "xin24m" }; 143 PNAME(mux_aclk_cpu_src_p) = { "cpll", "gpll", "gpll_div2", "gpll_div3" }; 144 145 PNAME(mux_pll_src_5plls_p) = { "cpll", "gpll", "gpll_div2", "gpll_div3", "usb480m" }; 146 PNAME(mux_pll_src_4plls_p) = { "cpll", "gpll", "gpll_div2", "usb480m" }; 147 PNAME(mux_pll_src_3plls_p) = { "cpll", "gpll", "gpll_div2" }; 148 149 PNAME(mux_aclk_peri_src_p) = { "gpll_peri", "cpll_peri", "gpll_div2_peri", "gpll_div3_peri" }; 150 PNAME(mux_mmc_src_p) = { "cpll", "gpll", "gpll_div2", "xin24m" }; 151 PNAME(mux_clk_cif_out_src_p) = { "clk_cif_src", "xin24m" }; 152 PNAME(mux_sclk_vop_src_p) = { "cpll", "gpll", "gpll_div2", "gpll_div3" }; 153 154 PNAME(mux_i2s0_p) = { "i2s0_src", "i2s0_frac", "ext_i2s", "xin12m" }; 155 PNAME(mux_i2s1_pre_p) = { "i2s1_src", "i2s1_frac", "ext_i2s", "xin12m" }; 156 PNAME(mux_i2s_out_p) = { "i2s1_pre", "xin12m" }; 157 PNAME(mux_sclk_spdif_p) = { "sclk_spdif_src", "spdif_frac", "xin12m" }; 158 159 PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" }; 160 PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; 161 PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" }; 162 163 PNAME(mux_sclk_gmac_p) = { "sclk_gmac_src", "gmac_clkin" }; 164 PNAME(mux_sclk_sfc_src_p) = { "cpll", "gpll", "gpll_div2", "xin24m" }; 165 166 static struct rockchip_pll_clock rk3128_pll_clks[] __initdata = { 167 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0), 168 RK2928_MODE_CON, 0, 1, 0, rk3128_pll_rates), 169 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4), 170 RK2928_MODE_CON, 4, 0, 0, NULL), 171 [cpll] = PLL(pll_rk3036, PLL_CPLL, "cpll", mux_pll_p, 0, RK2928_PLL_CON(8), 172 RK2928_MODE_CON, 8, 2, 0, rk3128_pll_rates), 173 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12), 174 RK2928_MODE_CON, 12, 3, ROCKCHIP_PLL_SYNC_RATE, rk3128_pll_rates), 175 }; 176 177 #define MFLAGS CLK_MUX_HIWORD_MASK 178 #define DFLAGS CLK_DIVIDER_HIWORD_MASK 179 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) 180 181 static struct rockchip_clk_branch rk3128_i2s0_fracmux __initdata = 182 MUX(0, "i2s0_pre", mux_i2s0_p, CLK_SET_RATE_PARENT, 183 RK2928_CLKSEL_CON(9), 8, 2, MFLAGS); 184 185 static struct rockchip_clk_branch rk3128_i2s1_fracmux __initdata = 186 MUX(0, "i2s1_pre", mux_i2s1_pre_p, CLK_SET_RATE_PARENT, 187 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS); 188 189 static struct rockchip_clk_branch rk3128_spdif_fracmux __initdata = 190 MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, CLK_SET_RATE_PARENT, 191 RK2928_CLKSEL_CON(6), 8, 2, MFLAGS); 192 193 static struct rockchip_clk_branch rk3128_uart0_fracmux __initdata = 194 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, 195 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS); 196 197 static struct rockchip_clk_branch rk3128_uart1_fracmux __initdata = 198 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, 199 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS); 200 201 static struct rockchip_clk_branch rk3128_uart2_fracmux __initdata = 202 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, 203 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS); 204 205 static struct rockchip_clk_branch common_clk_branches[] __initdata = { 206 /* 207 * Clock-Architecture Diagram 1 208 */ 209 210 FACTOR(PLL_GPLL_DIV2, "gpll_div2", "gpll", 0, 1, 2), 211 FACTOR(PLL_GPLL_DIV3, "gpll_div3", "gpll", 0, 1, 3), 212 213 DIV(0, "clk_24m", "xin24m", CLK_IGNORE_UNUSED, 214 RK2928_CLKSEL_CON(4), 8, 5, DFLAGS), 215 216 /* PD_DDR */ 217 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED, 218 RK2928_CLKGATE_CON(0), 2, GFLAGS), 219 GATE(0, "gpll_div2_ddr", "gpll_div2", CLK_IGNORE_UNUSED, 220 RK2928_CLKGATE_CON(0), 2, GFLAGS), 221 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED, 222 RK2928_CLKSEL_CON(26), 8, 2, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 223 FACTOR(SCLK_DDRC, "clk_ddrc", "ddrphy2x", 0, 1, 2), 224 FACTOR(0, "clk_ddrphy", "ddrphy2x", 0, 1, 2), 225 226 /* PD_CORE */ 227 GATE(0, "apll_core", "apll", CLK_IGNORE_UNUSED, 228 RK2928_CLKGATE_CON(0), 6, GFLAGS), 229 GATE(0, "gpll_div2_core", "gpll_div2", CLK_IGNORE_UNUSED, 230 RK2928_CLKGATE_CON(0), 6, GFLAGS), 231 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED, 232 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, 233 RK2928_CLKGATE_CON(0), 0, GFLAGS), 234 COMPOSITE_NOMUX(0, "armcore", "armclk", CLK_IGNORE_UNUSED, 235 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, 236 RK2928_CLKGATE_CON(0), 7, GFLAGS), 237 238 /* PD_MISC */ 239 MUX(SCLK_USB480M, "usb480m", mux_usb480m_p, CLK_SET_RATE_PARENT, 240 RK2928_MISC_CON, 15, 1, MFLAGS), 241 242 /* PD_CPU */ 243 COMPOSITE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, 0, 244 RK2928_CLKSEL_CON(0), 13, 2, MFLAGS, 8, 5, DFLAGS, 245 RK2928_CLKGATE_CON(0), 1, GFLAGS), 246 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", 0, 247 RK2928_CLKGATE_CON(0), 3, GFLAGS), 248 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", 0, 249 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS, 250 RK2928_CLKGATE_CON(0), 4, GFLAGS), 251 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", 0, 252 RK2928_CLKSEL_CON(1), 12, 2, DFLAGS, 253 RK2928_CLKGATE_CON(0), 5, GFLAGS), 254 COMPOSITE_NOMUX(SCLK_CRYPTO, "clk_crypto", "aclk_cpu_src", 0, 255 RK2928_CLKSEL_CON(24), 0, 2, DFLAGS, 256 RK2928_CLKGATE_CON(0), 12, GFLAGS), 257 258 /* PD_VIDEO */ 259 COMPOSITE(ACLK_VEPU, "aclk_vepu", mux_pll_src_5plls_p, 0, 260 RK2928_CLKSEL_CON(32), 5, 3, MFLAGS, 0, 5, DFLAGS, 261 RK2928_CLKGATE_CON(3), 9, GFLAGS), 262 FACTOR(HCLK_VEPU, "hclk_vepu", "aclk_vepu", 0, 1, 4), 263 264 COMPOSITE(ACLK_VDPU, "aclk_vdpu", mux_pll_src_5plls_p, 0, 265 RK2928_CLKSEL_CON(32), 13, 3, MFLAGS, 8, 5, DFLAGS, 266 RK2928_CLKGATE_CON(3), 11, GFLAGS), 267 FACTOR_GATE(HCLK_VDPU, "hclk_vdpu", "aclk_vdpu", 0, 1, 4, 268 RK2928_CLKGATE_CON(3), 12, GFLAGS), 269 270 COMPOSITE(SCLK_HEVC_CORE, "sclk_hevc_core", mux_pll_src_5plls_p, 0, 271 RK2928_CLKSEL_CON(34), 13, 3, MFLAGS, 8, 5, DFLAGS, 272 RK2928_CLKGATE_CON(3), 10, GFLAGS), 273 274 /* PD_VIO */ 275 COMPOSITE(ACLK_VIO0, "aclk_vio0", mux_pll_src_5plls_p, 0, 276 RK2928_CLKSEL_CON(31), 5, 3, MFLAGS, 0, 5, DFLAGS, 277 RK2928_CLKGATE_CON(3), 0, GFLAGS), 278 COMPOSITE(ACLK_VIO1, "aclk_vio1", mux_pll_src_5plls_p, 0, 279 RK2928_CLKSEL_CON(31), 13, 3, MFLAGS, 8, 5, DFLAGS, 280 RK2928_CLKGATE_CON(1), 4, GFLAGS), 281 COMPOSITE(HCLK_VIO, "hclk_vio", mux_pll_src_4plls_p, 0, 282 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS, 283 RK2928_CLKGATE_CON(0), 11, GFLAGS), 284 285 /* PD_PERI */ 286 GATE(0, "gpll_peri", "gpll", CLK_IGNORE_UNUSED, 287 RK2928_CLKGATE_CON(2), 0, GFLAGS), 288 GATE(0, "cpll_peri", "cpll", CLK_IGNORE_UNUSED, 289 RK2928_CLKGATE_CON(2), 0, GFLAGS), 290 GATE(0, "gpll_div2_peri", "gpll_div2", CLK_IGNORE_UNUSED, 291 RK2928_CLKGATE_CON(2), 0, GFLAGS), 292 GATE(0, "gpll_div3_peri", "gpll_div3", CLK_IGNORE_UNUSED, 293 RK2928_CLKGATE_CON(2), 0, GFLAGS), 294 COMPOSITE_NOGATE(0, "aclk_peri_src", mux_aclk_peri_src_p, 0, 295 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS), 296 COMPOSITE_NOMUX(PCLK_PERI, "pclk_peri", "aclk_peri_src", 0, 297 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, 298 RK2928_CLKGATE_CON(2), 3, GFLAGS), 299 COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", 0, 300 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, 301 RK2928_CLKGATE_CON(2), 2, GFLAGS), 302 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0, 303 RK2928_CLKGATE_CON(2), 1, GFLAGS), 304 305 GATE(SCLK_TIMER0, "sclk_timer0", "xin24m", 0, 306 RK2928_CLKGATE_CON(10), 3, GFLAGS), 307 GATE(SCLK_TIMER1, "sclk_timer1", "xin24m", 0, 308 RK2928_CLKGATE_CON(10), 4, GFLAGS), 309 GATE(SCLK_TIMER2, "sclk_timer2", "xin24m", 0, 310 RK2928_CLKGATE_CON(10), 5, GFLAGS), 311 GATE(SCLK_TIMER3, "sclk_timer3", "xin24m", 0, 312 RK2928_CLKGATE_CON(10), 6, GFLAGS), 313 GATE(SCLK_TIMER4, "sclk_timer4", "xin24m", 0, 314 RK2928_CLKGATE_CON(10), 7, GFLAGS), 315 GATE(SCLK_TIMER5, "sclk_timer5", "xin24m", 0, 316 RK2928_CLKGATE_CON(10), 8, GFLAGS), 317 318 GATE(SCLK_PVTM_CORE, "clk_pvtm_core", "xin24m", 0, 319 RK2928_CLKGATE_CON(10), 0, GFLAGS), 320 GATE(SCLK_PVTM_GPU, "clk_pvtm_gpu", "xin24m", 0, 321 RK2928_CLKGATE_CON(10), 1, GFLAGS), 322 GATE(SCLK_PVTM_FUNC, "clk_pvtm_func", "xin24m", 0, 323 RK2928_CLKGATE_CON(10), 2, GFLAGS), 324 GATE(SCLK_MIPI_24M, "clk_mipi_24m", "xin24m", CLK_IGNORE_UNUSED, 325 RK2928_CLKGATE_CON(2), 15, GFLAGS), 326 327 COMPOSITE(SCLK_SDMMC, "sclk_sdmmc0", mux_mmc_src_p, 0, 328 RK2928_CLKSEL_CON(11), 6, 2, MFLAGS, 0, 6, DFLAGS, 329 RK2928_CLKGATE_CON(2), 11, GFLAGS), 330 331 COMPOSITE(SCLK_SDIO, "sclk_sdio", mux_mmc_src_p, 0, 332 RK2928_CLKSEL_CON(12), 6, 2, MFLAGS, 0, 6, DFLAGS, 333 RK2928_CLKGATE_CON(2), 13, GFLAGS), 334 335 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0, 336 RK2928_CLKSEL_CON(12), 14, 2, MFLAGS, 8, 6, DFLAGS, 337 RK2928_CLKGATE_CON(2), 14, GFLAGS), 338 339 DIV(SCLK_PVTM, "clk_pvtm", "clk_pvtm_func", 0, 340 RK2928_CLKSEL_CON(2), 0, 7, DFLAGS), 341 342 /* 343 * Clock-Architecture Diagram 2 344 */ 345 COMPOSITE(DCLK_VOP, "dclk_vop", mux_sclk_vop_src_p, 0, 346 RK2928_CLKSEL_CON(27), 0, 2, MFLAGS, 8, 8, DFLAGS, 347 RK2928_CLKGATE_CON(3), 1, GFLAGS), 348 COMPOSITE(SCLK_VOP, "sclk_vop", mux_sclk_vop_src_p, 0, 349 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS, 350 RK2928_CLKGATE_CON(3), 2, GFLAGS), 351 COMPOSITE(DCLK_EBC, "dclk_ebc", mux_pll_src_3plls_p, 0, 352 RK2928_CLKSEL_CON(23), 0, 2, MFLAGS, 8, 8, DFLAGS, 353 RK2928_CLKGATE_CON(3), 4, GFLAGS), 354 355 FACTOR(0, "xin12m", "xin24m", 0, 1, 2), 356 357 COMPOSITE_NODIV(SCLK_CIF_SRC, "sclk_cif_src", mux_pll_src_4plls_p, 0, 358 RK2928_CLKSEL_CON(29), 0, 2, MFLAGS, 359 RK2928_CLKGATE_CON(3), 7, GFLAGS), 360 MUX(SCLK_CIF_OUT_SRC, "sclk_cif_out_src", mux_clk_cif_out_src_p, 0, 361 RK2928_CLKSEL_CON(13), 14, 2, MFLAGS), 362 DIV(SCLK_CIF_OUT, "sclk_cif_out", "sclk_cif_out_src", 0, 363 RK2928_CLKSEL_CON(29), 2, 5, DFLAGS), 364 365 COMPOSITE(0, "i2s0_src", mux_pll_src_3plls_p, 0, 366 RK2928_CLKSEL_CON(9), 14, 2, MFLAGS, 0, 7, DFLAGS, 367 RK2928_CLKGATE_CON(4), 4, GFLAGS), 368 COMPOSITE_FRACMUX(0, "i2s0_frac", "i2s0_src", CLK_SET_RATE_PARENT, 369 RK2928_CLKSEL_CON(8), 0, 370 RK2928_CLKGATE_CON(4), 5, GFLAGS, 371 &rk3128_i2s0_fracmux), 372 GATE(SCLK_I2S0, "sclk_i2s0", "i2s0_pre", CLK_SET_RATE_PARENT, 373 RK2928_CLKGATE_CON(4), 6, GFLAGS), 374 375 COMPOSITE(0, "i2s1_src", mux_pll_src_3plls_p, 0, 376 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS, 377 RK2928_CLKGATE_CON(0), 9, GFLAGS), 378 COMPOSITE_FRACMUX(0, "i2s1_frac", "i2s1_src", CLK_SET_RATE_PARENT, 379 RK2928_CLKSEL_CON(7), 0, 380 RK2928_CLKGATE_CON(0), 10, GFLAGS, 381 &rk3128_i2s1_fracmux), 382 GATE(SCLK_I2S1, "sclk_i2s1", "i2s1_pre", CLK_SET_RATE_PARENT, 383 RK2928_CLKGATE_CON(0), 14, GFLAGS), 384 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_out", mux_i2s_out_p, 0, 385 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS, 386 RK2928_CLKGATE_CON(0), 13, GFLAGS), 387 388 COMPOSITE(0, "sclk_spdif_src", mux_pll_src_3plls_p, 0, 389 RK2928_CLKSEL_CON(6), 14, 2, MFLAGS, 0, 7, DFLAGS, 390 RK2928_CLKGATE_CON(2), 10, GFLAGS), 391 COMPOSITE_FRACMUX(0, "spdif_frac", "sclk_spdif_src", CLK_SET_RATE_PARENT, 392 RK2928_CLKSEL_CON(20), 0, 393 RK2928_CLKGATE_CON(2), 12, GFLAGS, 394 &rk3128_spdif_fracmux), 395 396 GATE(0, "jtag", "ext_jtag", CLK_IGNORE_UNUSED, 397 RK2928_CLKGATE_CON(1), 3, GFLAGS), 398 399 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", 0, 400 RK2928_CLKGATE_CON(1), 5, GFLAGS), 401 GATE(SCLK_OTGPHY1, "sclk_otgphy1", "xin12m", 0, 402 RK2928_CLKGATE_CON(1), 6, GFLAGS), 403 404 COMPOSITE_NOMUX(SCLK_SARADC, "sclk_saradc", "xin24m", 0, 405 RK2928_CLKSEL_CON(24), 8, 8, DFLAGS, 406 RK2928_CLKGATE_CON(2), 8, GFLAGS), 407 408 COMPOSITE(ACLK_GPU, "aclk_gpu", mux_pll_src_5plls_p, 0, 409 RK2928_CLKSEL_CON(34), 5, 3, MFLAGS, 0, 5, DFLAGS, 410 RK2928_CLKGATE_CON(3), 13, GFLAGS), 411 412 COMPOSITE(SCLK_SPI0, "sclk_spi0", mux_pll_src_3plls_p, 0, 413 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS, 414 RK2928_CLKGATE_CON(2), 9, GFLAGS), 415 416 /* PD_UART */ 417 COMPOSITE(0, "uart0_src", mux_pll_src_4plls_p, 0, 418 RK2928_CLKSEL_CON(13), 12, 2, MFLAGS, 0, 7, DFLAGS, 419 RK2928_CLKGATE_CON(1), 8, GFLAGS), 420 MUX(0, "uart12_src", mux_pll_src_4plls_p, 0, 421 RK2928_CLKSEL_CON(13), 14, 2, MFLAGS), 422 COMPOSITE_NOMUX(0, "uart1_src", "uart12_src", 0, 423 RK2928_CLKSEL_CON(14), 0, 7, DFLAGS, 424 RK2928_CLKGATE_CON(1), 10, GFLAGS), 425 COMPOSITE_NOMUX(0, "uart2_src", "uart12_src", 0, 426 RK2928_CLKSEL_CON(15), 0, 7, DFLAGS, 427 RK2928_CLKGATE_CON(1), 13, GFLAGS), 428 COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, 429 RK2928_CLKSEL_CON(17), 0, 430 RK2928_CLKGATE_CON(1), 9, GFLAGS, 431 &rk3128_uart0_fracmux), 432 COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, 433 RK2928_CLKSEL_CON(18), 0, 434 RK2928_CLKGATE_CON(1), 11, GFLAGS, 435 &rk3128_uart1_fracmux), 436 COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT, 437 RK2928_CLKSEL_CON(19), 0, 438 RK2928_CLKGATE_CON(1), 13, GFLAGS, 439 &rk3128_uart2_fracmux), 440 441 COMPOSITE(SCLK_MAC_SRC, "sclk_gmac_src", mux_pll_src_3plls_p, 0, 442 RK2928_CLKSEL_CON(5), 6, 2, MFLAGS, 0, 5, DFLAGS, 443 RK2928_CLKGATE_CON(1), 7, GFLAGS), 444 MUX(SCLK_MAC, "sclk_gmac", mux_sclk_gmac_p, 0, 445 RK2928_CLKSEL_CON(5), 15, 1, MFLAGS), 446 GATE(SCLK_MAC_REFOUT, "sclk_mac_refout", "sclk_gmac", 0, 447 RK2928_CLKGATE_CON(2), 5, GFLAGS), 448 GATE(SCLK_MAC_REF, "sclk_mac_ref", "sclk_gmac", 0, 449 RK2928_CLKGATE_CON(2), 4, GFLAGS), 450 GATE(SCLK_MAC_RX, "sclk_mac_rx", "sclk_gmac", 0, 451 RK2928_CLKGATE_CON(2), 6, GFLAGS), 452 GATE(SCLK_MAC_TX, "sclk_mac_tx", "sclk_gmac", 0, 453 RK2928_CLKGATE_CON(2), 7, GFLAGS), 454 455 COMPOSITE(SCLK_TSP, "sclk_tsp", mux_pll_src_3plls_p, 0, 456 RK2928_CLKSEL_CON(4), 6, 2, MFLAGS, 0, 5, DFLAGS, 457 RK2928_CLKGATE_CON(1), 14, GFLAGS), 458 459 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0, 460 RK2928_CLKSEL_CON(2), 14, 2, MFLAGS, 8, 5, DFLAGS, 461 RK2928_CLKGATE_CON(10), 15, GFLAGS), 462 463 COMPOSITE_NOMUX(PCLK_PMU_PRE, "pclk_pmu_pre", "cpll", 0, 464 RK2928_CLKSEL_CON(29), 8, 6, DFLAGS, 465 RK2928_CLKGATE_CON(1), 0, GFLAGS), 466 467 /* 468 * Clock-Architecture Diagram 3 469 */ 470 471 /* PD_VOP */ 472 GATE(ACLK_LCDC0, "aclk_lcdc0", "aclk_vio0", 0, RK2928_CLKGATE_CON(6), 0, GFLAGS), 473 GATE(ACLK_CIF, "aclk_cif", "aclk_vio0", 0, RK2928_CLKGATE_CON(6), 5, GFLAGS), 474 GATE(ACLK_RGA, "aclk_rga", "aclk_vio0", 0, RK2928_CLKGATE_CON(6), 11, GFLAGS), 475 GATE(0, "aclk_vio0_niu", "aclk_vio0", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 13, GFLAGS), 476 477 GATE(ACLK_IEP, "aclk_iep", "aclk_vio1", 0, RK2928_CLKGATE_CON(9), 8, GFLAGS), 478 GATE(0, "aclk_vio1_niu", "aclk_vio1", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 10, GFLAGS), 479 480 GATE(HCLK_VIO_H2P, "hclk_vio_h2p", "hclk_vio", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS), 481 GATE(PCLK_MIPI, "pclk_mipi", "hclk_vio", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS), 482 GATE(HCLK_RGA, "hclk_rga", "hclk_vio", 0, RK2928_CLKGATE_CON(6), 10, GFLAGS), 483 GATE(HCLK_LCDC0, "hclk_lcdc0", "hclk_vio", 0, RK2928_CLKGATE_CON(6), 1, GFLAGS), 484 GATE(HCLK_IEP, "hclk_iep", "hclk_vio", 0, RK2928_CLKGATE_CON(9), 7, GFLAGS), 485 GATE(0, "hclk_vio_niu", "hclk_vio", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 12, GFLAGS), 486 GATE(HCLK_CIF, "hclk_cif", "hclk_vio", 0, RK2928_CLKGATE_CON(6), 4, GFLAGS), 487 GATE(HCLK_EBC, "hclk_ebc", "hclk_vio", 0, RK2928_CLKGATE_CON(9), 9, GFLAGS), 488 489 /* PD_PERI */ 490 GATE(0, "aclk_peri_axi", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS), 491 GATE(ACLK_GMAC, "aclk_gmac", "aclk_peri", 0, RK2928_CLKGATE_CON(10), 10, GFLAGS), 492 GATE(ACLK_DMAC, "aclk_dmac", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS), 493 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS), 494 GATE(0, "aclk_cpu_to_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS), 495 496 GATE(HCLK_I2S_8CH, "hclk_i2s_8ch", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 4, GFLAGS), 497 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS), 498 GATE(HCLK_I2S_2CH, "hclk_i2s_2ch", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS), 499 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS), 500 GATE(HCLK_HOST2, "hclk_host2", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 3, GFLAGS), 501 GATE(HCLK_OTG, "hclk_otg", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 13, GFLAGS), 502 GATE(0, "hclk_peri_ahb", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS), 503 GATE(HCLK_SPDIF, "hclk_spdif", "hclk_peri", 0, RK2928_CLKGATE_CON(10), 9, GFLAGS), 504 GATE(HCLK_TSP, "hclk_tsp", "hclk_peri", 0, RK2928_CLKGATE_CON(10), 12, GFLAGS), 505 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS), 506 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS), 507 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS), 508 GATE(0, "hclk_emmc_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 6, GFLAGS), 509 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS), 510 GATE(HCLK_USBHOST, "hclk_usbhost", "hclk_peri", 0, RK2928_CLKGATE_CON(10), 14, GFLAGS), 511 512 GATE(PCLK_SIM_CARD, "pclk_sim_card", "pclk_peri", 0, RK2928_CLKGATE_CON(9), 12, GFLAGS), 513 GATE(PCLK_GMAC, "pclk_gmac", "pclk_peri", 0, RK2928_CLKGATE_CON(10), 11, GFLAGS), 514 GATE(0, "pclk_peri_axi", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS), 515 GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS), 516 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS), 517 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS), 518 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS), 519 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS), 520 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS), 521 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS), 522 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS), 523 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS), 524 GATE(PCLK_I2C3, "pclk_i2c3", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 7, GFLAGS), 525 GATE(PCLK_SARADC, "pclk_saradc", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 14, GFLAGS), 526 GATE(PCLK_EFUSE, "pclk_efuse", "pclk_peri", 0, RK2928_CLKGATE_CON(5), 2, GFLAGS), 527 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 7, GFLAGS), 528 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS), 529 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS), 530 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS), 531 GATE(PCLK_GPIO3, "pclk_gpio3", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 12, GFLAGS), 532 533 /* PD_BUS */ 534 GATE(0, "aclk_initmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS), 535 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS), 536 537 GATE(0, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS), 538 GATE(HCLK_CRYPTO, "hclk_crypto", "hclk_cpu", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS), 539 540 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS), 541 GATE(0, "pclk_ddrupctl", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 7, GFLAGS), 542 GATE(0, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS), 543 GATE(0, "pclk_mipiphy", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 0, GFLAGS), 544 545 GATE(0, "pclk_pmu", "pclk_pmu_pre", 0, RK2928_CLKGATE_CON(9), 2, GFLAGS), 546 GATE(0, "pclk_pmu_niu", "pclk_pmu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 3, GFLAGS), 547 548 /* PD_MMC */ 549 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3228_SDMMC_CON0, 1), 550 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3228_SDMMC_CON1, 0), 551 552 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3228_SDIO_CON0, 1), 553 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3228_SDIO_CON1, 0), 554 555 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3228_EMMC_CON0, 1), 556 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3228_EMMC_CON1, 0), 557 }; 558 559 static struct rockchip_clk_branch rk3126_clk_branches[] __initdata = { 560 GATE(0, "pclk_stimer", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 15, GFLAGS), 561 GATE(0, "pclk_s_efuse", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS), 562 GATE(0, "pclk_sgrf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 8, GFLAGS), 563 }; 564 565 static struct rockchip_clk_branch rk3128_clk_branches[] __initdata = { 566 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_sclk_sfc_src_p, 0, 567 RK2928_CLKSEL_CON(11), 14, 2, MFLAGS, 8, 5, DFLAGS, 568 RK2928_CLKGATE_CON(3), 15, GFLAGS), 569 570 GATE(HCLK_GPS, "hclk_gps", "aclk_peri", 0, RK2928_CLKGATE_CON(3), 14, GFLAGS), 571 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS), 572 }; 573 574 static const char *const rk3128_critical_clocks[] __initconst = { 575 "aclk_cpu", 576 "hclk_cpu", 577 "pclk_cpu", 578 "aclk_peri", 579 "hclk_peri", 580 "pclk_peri", 581 "pclk_pmu", 582 "sclk_timer5", 583 }; 584 585 static struct rockchip_clk_provider *__init rk3128_common_clk_init(struct device_node *np) 586 { 587 struct rockchip_clk_provider *ctx; 588 void __iomem *reg_base; 589 590 reg_base = of_iomap(np, 0); 591 if (!reg_base) { 592 pr_err("%s: could not map cru region\n", __func__); 593 return ERR_PTR(-ENOMEM); 594 } 595 596 ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS); 597 if (IS_ERR(ctx)) { 598 pr_err("%s: rockchip clk init failed\n", __func__); 599 iounmap(reg_base); 600 return ERR_PTR(-ENOMEM); 601 } 602 603 rockchip_clk_register_plls(ctx, rk3128_pll_clks, 604 ARRAY_SIZE(rk3128_pll_clks), 605 RK3128_GRF_SOC_STATUS0); 606 rockchip_clk_register_branches(ctx, common_clk_branches, 607 ARRAY_SIZE(common_clk_branches)); 608 609 rockchip_clk_register_armclk(ctx, ARMCLK, "armclk", 610 mux_armclk_p, ARRAY_SIZE(mux_armclk_p), 611 &rk3128_cpuclk_data, rk3128_cpuclk_rates, 612 ARRAY_SIZE(rk3128_cpuclk_rates)); 613 614 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0), 615 ROCKCHIP_SOFTRST_HIWORD_MASK); 616 617 rockchip_register_restart_notifier(ctx, RK2928_GLB_SRST_FST, NULL); 618 619 return ctx; 620 } 621 622 static void __init rk3126_clk_init(struct device_node *np) 623 { 624 struct rockchip_clk_provider *ctx; 625 626 ctx = rk3128_common_clk_init(np); 627 if (IS_ERR(ctx)) 628 return; 629 630 rockchip_clk_register_branches(ctx, rk3126_clk_branches, 631 ARRAY_SIZE(rk3126_clk_branches)); 632 rockchip_clk_protect_critical(rk3128_critical_clocks, 633 ARRAY_SIZE(rk3128_critical_clocks)); 634 635 rockchip_clk_of_add_provider(np, ctx); 636 } 637 638 CLK_OF_DECLARE(rk3126_cru, "rockchip,rk3126-cru", rk3126_clk_init); 639 640 static void __init rk3128_clk_init(struct device_node *np) 641 { 642 struct rockchip_clk_provider *ctx; 643 644 ctx = rk3128_common_clk_init(np); 645 if (IS_ERR(ctx)) 646 return; 647 648 rockchip_clk_register_branches(ctx, rk3128_clk_branches, 649 ARRAY_SIZE(rk3128_clk_branches)); 650 rockchip_clk_protect_critical(rk3128_critical_clocks, 651 ARRAY_SIZE(rk3128_critical_clocks)); 652 653 rockchip_clk_of_add_provider(np, ctx); 654 } 655 656 CLK_OF_DECLARE(rk3128_cru, "rockchip,rk3128-cru", rk3128_clk_init); 657