1 /* 2 * Copyright (c) 2014 MundoReader S.L. 3 * Author: Heiko Stuebner <heiko@sntech.de> 4 * 5 * Copyright (c) 2015 Rockchip Electronics Co. Ltd. 6 * Author: Xing Zheng <zhengxing@rock-chips.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 */ 18 19 #include <linux/clk-provider.h> 20 #include <linux/io.h> 21 #include <linux/of.h> 22 #include <linux/of_address.h> 23 #include <linux/syscore_ops.h> 24 #include <dt-bindings/clock/rk3036-cru.h> 25 #include "clk.h" 26 27 #define RK3036_GRF_SOC_STATUS0 0x14c 28 29 enum rk3036_plls { 30 apll, dpll, gpll, 31 }; 32 33 static struct rockchip_pll_rate_table rk3036_pll_rates[] = { 34 /* _mhz, _refdiv, _fbdiv, _postdiv1, _postdiv2, _dsmpd, _frac */ 35 RK3036_PLL_RATE(1608000000, 1, 67, 1, 1, 1, 0), 36 RK3036_PLL_RATE(1584000000, 1, 66, 1, 1, 1, 0), 37 RK3036_PLL_RATE(1560000000, 1, 65, 1, 1, 1, 0), 38 RK3036_PLL_RATE(1536000000, 1, 64, 1, 1, 1, 0), 39 RK3036_PLL_RATE(1512000000, 1, 63, 1, 1, 1, 0), 40 RK3036_PLL_RATE(1488000000, 1, 62, 1, 1, 1, 0), 41 RK3036_PLL_RATE(1464000000, 1, 61, 1, 1, 1, 0), 42 RK3036_PLL_RATE(1440000000, 1, 60, 1, 1, 1, 0), 43 RK3036_PLL_RATE(1416000000, 1, 59, 1, 1, 1, 0), 44 RK3036_PLL_RATE(1392000000, 1, 58, 1, 1, 1, 0), 45 RK3036_PLL_RATE(1368000000, 1, 57, 1, 1, 1, 0), 46 RK3036_PLL_RATE(1344000000, 1, 56, 1, 1, 1, 0), 47 RK3036_PLL_RATE(1320000000, 1, 55, 1, 1, 1, 0), 48 RK3036_PLL_RATE(1296000000, 1, 54, 1, 1, 1, 0), 49 RK3036_PLL_RATE(1272000000, 1, 53, 1, 1, 1, 0), 50 RK3036_PLL_RATE(1248000000, 1, 52, 1, 1, 1, 0), 51 RK3036_PLL_RATE(1200000000, 1, 50, 1, 1, 1, 0), 52 RK3036_PLL_RATE(1188000000, 2, 99, 1, 1, 1, 0), 53 RK3036_PLL_RATE(1104000000, 1, 46, 1, 1, 1, 0), 54 RK3036_PLL_RATE(1100000000, 12, 550, 1, 1, 1, 0), 55 RK3036_PLL_RATE(1008000000, 1, 84, 2, 1, 1, 0), 56 RK3036_PLL_RATE(1000000000, 6, 500, 2, 1, 1, 0), 57 RK3036_PLL_RATE( 984000000, 1, 82, 2, 1, 1, 0), 58 RK3036_PLL_RATE( 960000000, 1, 80, 2, 1, 1, 0), 59 RK3036_PLL_RATE( 936000000, 1, 78, 2, 1, 1, 0), 60 RK3036_PLL_RATE( 912000000, 1, 76, 2, 1, 1, 0), 61 RK3036_PLL_RATE( 900000000, 4, 300, 2, 1, 1, 0), 62 RK3036_PLL_RATE( 888000000, 1, 74, 2, 1, 1, 0), 63 RK3036_PLL_RATE( 864000000, 1, 72, 2, 1, 1, 0), 64 RK3036_PLL_RATE( 840000000, 1, 70, 2, 1, 1, 0), 65 RK3036_PLL_RATE( 816000000, 1, 68, 2, 1, 1, 0), 66 RK3036_PLL_RATE( 800000000, 6, 400, 2, 1, 1, 0), 67 RK3036_PLL_RATE( 700000000, 6, 350, 2, 1, 1, 0), 68 RK3036_PLL_RATE( 696000000, 1, 58, 2, 1, 1, 0), 69 RK3036_PLL_RATE( 600000000, 1, 75, 3, 1, 1, 0), 70 RK3036_PLL_RATE( 594000000, 2, 99, 2, 1, 1, 0), 71 RK3036_PLL_RATE( 504000000, 1, 63, 3, 1, 1, 0), 72 RK3036_PLL_RATE( 500000000, 6, 250, 2, 1, 1, 0), 73 RK3036_PLL_RATE( 408000000, 1, 68, 2, 2, 1, 0), 74 RK3036_PLL_RATE( 312000000, 1, 52, 2, 2, 1, 0), 75 RK3036_PLL_RATE( 216000000, 1, 72, 4, 2, 1, 0), 76 RK3036_PLL_RATE( 96000000, 1, 64, 4, 4, 1, 0), 77 { /* sentinel */ }, 78 }; 79 80 #define RK3036_DIV_CPU_MASK 0x1f 81 #define RK3036_DIV_CPU_SHIFT 8 82 83 #define RK3036_DIV_PERI_MASK 0xf 84 #define RK3036_DIV_PERI_SHIFT 0 85 #define RK3036_DIV_ACLK_MASK 0x7 86 #define RK3036_DIV_ACLK_SHIFT 4 87 #define RK3036_DIV_HCLK_MASK 0x3 88 #define RK3036_DIV_HCLK_SHIFT 8 89 #define RK3036_DIV_PCLK_MASK 0x7 90 #define RK3036_DIV_PCLK_SHIFT 12 91 92 #define RK3036_CLKSEL1(_core_periph_div) \ 93 { \ 94 .reg = RK2928_CLKSEL_CON(1), \ 95 .val = HIWORD_UPDATE(_core_periph_div, RK3036_DIV_PERI_MASK, \ 96 RK3036_DIV_PERI_SHIFT) \ 97 } 98 99 #define RK3036_CPUCLK_RATE(_prate, _core_periph_div) \ 100 { \ 101 .prate = _prate, \ 102 .divs = { \ 103 RK3036_CLKSEL1(_core_periph_div), \ 104 }, \ 105 } 106 107 static struct rockchip_cpuclk_rate_table rk3036_cpuclk_rates[] __initdata = { 108 RK3036_CPUCLK_RATE(816000000, 4), 109 RK3036_CPUCLK_RATE(600000000, 4), 110 RK3036_CPUCLK_RATE(312000000, 4), 111 }; 112 113 static const struct rockchip_cpuclk_reg_data rk3036_cpuclk_data = { 114 .core_reg = RK2928_CLKSEL_CON(0), 115 .div_core_shift = 0, 116 .div_core_mask = 0x1f, 117 .mux_core_alt = 1, 118 .mux_core_main = 0, 119 .mux_core_shift = 7, 120 .mux_core_mask = 0x1, 121 }; 122 123 PNAME(mux_pll_p) = { "xin24m", "xin24m" }; 124 125 PNAME(mux_armclk_p) = { "apll", "gpll_armclk" }; 126 PNAME(mux_busclk_p) = { "apll", "dpll_cpu", "gpll_cpu" }; 127 PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" }; 128 PNAME(mux_pll_src_3plls_p) = { "apll", "dpll", "gpll" }; 129 PNAME(mux_timer_p) = { "xin24m", "pclk_peri_src" }; 130 131 PNAME(mux_pll_src_apll_dpll_gpll_usb480m_p) = { "apll", "dpll", "gpll", "usb480m" }; 132 133 PNAME(mux_mmc_src_p) = { "apll", "dpll", "gpll", "xin24m" }; 134 PNAME(mux_i2s_pre_p) = { "i2s_src", "i2s_frac", "ext_i2s", "xin12m" }; 135 PNAME(mux_i2s_clkout_p) = { "i2s_pre", "xin12m" }; 136 PNAME(mux_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" }; 137 PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" }; 138 PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; 139 PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" }; 140 PNAME(mux_mac_p) = { "mac_pll_src", "rmii_clkin" }; 141 PNAME(mux_dclk_p) = { "dclk_lcdc", "dclk_cru" }; 142 143 static struct rockchip_pll_clock rk3036_pll_clks[] __initdata = { 144 [apll] = PLL(pll_rk3036, PLL_APLL, "apll", mux_pll_p, 0, RK2928_PLL_CON(0), 145 RK2928_MODE_CON, 0, 5, 0, rk3036_pll_rates), 146 [dpll] = PLL(pll_rk3036, PLL_DPLL, "dpll", mux_pll_p, 0, RK2928_PLL_CON(4), 147 RK2928_MODE_CON, 4, 4, 0, NULL), 148 [gpll] = PLL(pll_rk3036, PLL_GPLL, "gpll", mux_pll_p, 0, RK2928_PLL_CON(12), 149 RK2928_MODE_CON, 12, 6, ROCKCHIP_PLL_SYNC_RATE, rk3036_pll_rates), 150 }; 151 152 #define MFLAGS CLK_MUX_HIWORD_MASK 153 #define DFLAGS CLK_DIVIDER_HIWORD_MASK 154 #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) 155 156 static struct rockchip_clk_branch rk3036_uart0_fracmux __initdata = 157 MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, 158 RK2928_CLKSEL_CON(13), 8, 2, MFLAGS); 159 160 static struct rockchip_clk_branch rk3036_uart1_fracmux __initdata = 161 MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, 162 RK2928_CLKSEL_CON(14), 8, 2, MFLAGS); 163 164 static struct rockchip_clk_branch rk3036_uart2_fracmux __initdata = 165 MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, 166 RK2928_CLKSEL_CON(15), 8, 2, MFLAGS); 167 168 static struct rockchip_clk_branch rk3036_i2s_fracmux __initdata = 169 MUX(0, "i2s_pre", mux_i2s_pre_p, CLK_SET_RATE_PARENT, 170 RK2928_CLKSEL_CON(3), 8, 2, MFLAGS); 171 172 static struct rockchip_clk_branch rk3036_spdif_fracmux __initdata = 173 MUX(SCLK_SPDIF, "sclk_spdif", mux_spdif_p, 0, 174 RK2928_CLKSEL_CON(5), 8, 2, MFLAGS); 175 176 static struct rockchip_clk_branch rk3036_clk_branches[] __initdata = { 177 /* 178 * Clock-Architecture Diagram 1 179 */ 180 181 GATE(0, "gpll_armclk", "gpll", CLK_IGNORE_UNUSED, 182 RK2928_CLKGATE_CON(0), 6, GFLAGS), 183 184 FACTOR(0, "xin12m", "xin24m", 0, 1, 2), 185 186 /* 187 * Clock-Architecture Diagram 2 188 */ 189 190 GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED, 191 RK2928_CLKGATE_CON(0), 2, GFLAGS), 192 GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED, 193 RK2928_CLKGATE_CON(0), 8, GFLAGS), 194 COMPOSITE_NOGATE(0, "ddrphy2x", mux_ddrphy_p, CLK_IGNORE_UNUSED, 195 RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 196 FACTOR(0, "ddrphy", "ddrphy2x", 0, 1, 2), 197 198 COMPOSITE_NOMUX(0, "pclk_dbg", "armclk", CLK_IGNORE_UNUSED, 199 RK2928_CLKSEL_CON(1), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY, 200 RK2928_CLKGATE_CON(0), 7, GFLAGS), 201 COMPOSITE_NOMUX(0, "aclk_core_pre", "armclk", CLK_IGNORE_UNUSED, 202 RK2928_CLKSEL_CON(1), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, 203 RK2928_CLKGATE_CON(0), 7, GFLAGS), 204 205 GATE(0, "dpll_cpu", "dpll", 0, RK2928_CLKGATE_CON(10), 8, GFLAGS), 206 GATE(0, "gpll_cpu", "gpll", 0, RK2928_CLKGATE_CON(0), 1, GFLAGS), 207 COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_busclk_p, 0, 208 RK2928_CLKSEL_CON(0), 14, 2, MFLAGS, 8, 5, DFLAGS), 209 GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 210 RK2928_CLKGATE_CON(0), 3, GFLAGS), 211 COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 212 RK2928_CLKSEL_CON(1), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY, 213 RK2928_CLKGATE_CON(0), 5, GFLAGS), 214 COMPOSITE_NOMUX(HCLK_CPU, "hclk_cpu", "aclk_cpu_src", CLK_IGNORE_UNUSED, 215 RK2928_CLKSEL_CON(1), 8, 2, DFLAGS | CLK_DIVIDER_READ_ONLY, 216 RK2928_CLKGATE_CON(0), 4, GFLAGS), 217 218 COMPOSITE(0, "aclk_peri_src", mux_pll_src_3plls_p, 0, 219 RK2928_CLKSEL_CON(10), 14, 2, MFLAGS, 0, 5, DFLAGS, 220 RK2928_CLKGATE_CON(2), 0, GFLAGS), 221 222 GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0, 223 RK2928_CLKGATE_CON(2), 1, GFLAGS), 224 DIV(0, "pclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED, 225 RK2928_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 226 GATE(PCLK_PERI, "pclk_peri", "pclk_peri_src", 0, 227 RK2928_CLKGATE_CON(2), 3, GFLAGS), 228 DIV(0, "hclk_peri_src", "aclk_peri_src", CLK_IGNORE_UNUSED, 229 RK2928_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO), 230 GATE(HCLK_PERI, "hclk_peri", "hclk_peri_src", 0, 231 RK2928_CLKGATE_CON(2), 2, GFLAGS), 232 233 COMPOSITE_NODIV(SCLK_TIMER0, "sclk_timer0", mux_timer_p, CLK_IGNORE_UNUSED, 234 RK2928_CLKSEL_CON(2), 4, 1, MFLAGS, 235 RK2928_CLKGATE_CON(1), 0, GFLAGS), 236 COMPOSITE_NODIV(SCLK_TIMER1, "sclk_timer1", mux_timer_p, CLK_IGNORE_UNUSED, 237 RK2928_CLKSEL_CON(2), 5, 1, MFLAGS, 238 RK2928_CLKGATE_CON(1), 1, GFLAGS), 239 COMPOSITE_NODIV(SCLK_TIMER2, "sclk_timer2", mux_timer_p, CLK_IGNORE_UNUSED, 240 RK2928_CLKSEL_CON(2), 6, 1, MFLAGS, 241 RK2928_CLKGATE_CON(2), 4, GFLAGS), 242 COMPOSITE_NODIV(SCLK_TIMER3, "sclk_timer3", mux_timer_p, CLK_IGNORE_UNUSED, 243 RK2928_CLKSEL_CON(2), 7, 1, MFLAGS, 244 RK2928_CLKGATE_CON(2), 5, GFLAGS), 245 246 MUX(0, "uart_pll_clk", mux_pll_src_apll_dpll_gpll_usb480m_p, 0, 247 RK2928_CLKSEL_CON(13), 10, 2, MFLAGS), 248 COMPOSITE_NOMUX(0, "uart0_src", "uart_pll_clk", 0, 249 RK2928_CLKSEL_CON(13), 0, 7, DFLAGS, 250 RK2928_CLKGATE_CON(1), 8, GFLAGS), 251 COMPOSITE_NOMUX(0, "uart1_src", "uart_pll_clk", 0, 252 RK2928_CLKSEL_CON(14), 0, 7, DFLAGS, 253 RK2928_CLKGATE_CON(1), 10, GFLAGS), 254 COMPOSITE_NOMUX(0, "uart2_src", "uart_pll_clk", 0, 255 RK2928_CLKSEL_CON(15), 0, 7, DFLAGS, 256 RK2928_CLKGATE_CON(1), 12, GFLAGS), 257 COMPOSITE_FRACMUX(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, 258 RK2928_CLKSEL_CON(17), 0, 259 RK2928_CLKGATE_CON(1), 9, GFLAGS, 260 &rk3036_uart0_fracmux), 261 COMPOSITE_FRACMUX(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, 262 RK2928_CLKSEL_CON(18), 0, 263 RK2928_CLKGATE_CON(1), 11, GFLAGS, 264 &rk3036_uart1_fracmux), 265 COMPOSITE_FRACMUX(0, "uart2_frac", "uart2_src", CLK_SET_RATE_PARENT, 266 RK2928_CLKSEL_CON(19), 0, 267 RK2928_CLKGATE_CON(1), 13, GFLAGS, 268 &rk3036_uart2_fracmux), 269 270 COMPOSITE(0, "aclk_vcodec", mux_pll_src_3plls_p, 0, 271 RK2928_CLKSEL_CON(32), 14, 2, MFLAGS, 8, 5, DFLAGS, 272 RK2928_CLKGATE_CON(3), 11, GFLAGS), 273 FACTOR_GATE(HCLK_VCODEC, "hclk_vcodec", "aclk_vcodec", 0, 1, 4, 274 RK2928_CLKGATE_CON(3), 12, GFLAGS), 275 276 COMPOSITE(0, "aclk_hvec", mux_pll_src_3plls_p, 0, 277 RK2928_CLKSEL_CON(20), 0, 2, MFLAGS, 2, 5, DFLAGS, 278 RK2928_CLKGATE_CON(10), 6, GFLAGS), 279 280 COMPOSITE(0, "aclk_disp1_pre", mux_pll_src_3plls_p, 0, 281 RK2928_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS, 282 RK2928_CLKGATE_CON(1), 4, GFLAGS), 283 COMPOSITE(0, "hclk_disp_pre", mux_pll_src_3plls_p, 0, 284 RK2928_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS, 285 RK2928_CLKGATE_CON(0), 11, GFLAGS), 286 COMPOSITE(SCLK_LCDC, "dclk_lcdc", mux_pll_src_3plls_p, 0, 287 RK2928_CLKSEL_CON(28), 0, 2, MFLAGS, 8, 8, DFLAGS, 288 RK2928_CLKGATE_CON(3), 2, GFLAGS), 289 290 COMPOSITE_NODIV(0, "sclk_sdmmc_src", mux_mmc_src_p, 0, 291 RK2928_CLKSEL_CON(12), 8, 2, MFLAGS, 292 RK2928_CLKGATE_CON(2), 11, GFLAGS), 293 DIV(SCLK_SDMMC, "sclk_sdmmc", "sclk_sdmmc_src", 0, 294 RK2928_CLKSEL_CON(11), 0, 7, DFLAGS), 295 296 COMPOSITE_NODIV(0, "sclk_sdio_src", mux_mmc_src_p, 0, 297 RK2928_CLKSEL_CON(12), 10, 2, MFLAGS, 298 RK2928_CLKGATE_CON(2), 13, GFLAGS), 299 DIV(SCLK_SDIO, "sclk_sdio", "sclk_sdio_src", 0, 300 RK2928_CLKSEL_CON(11), 8, 7, DFLAGS), 301 302 COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0, 303 RK2928_CLKSEL_CON(12), 12, 2, MFLAGS, 0, 7, DFLAGS, 304 RK2928_CLKGATE_CON(2), 14, GFLAGS), 305 306 MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3036_SDMMC_CON0, 1), 307 MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3036_SDMMC_CON1, 0), 308 309 MMC(SCLK_SDIO_DRV, "sdio_drv", "sclk_sdio", RK3036_SDIO_CON0, 1), 310 MMC(SCLK_SDIO_SAMPLE, "sdio_sample", "sclk_sdio", RK3036_SDIO_CON1, 0), 311 312 MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3036_EMMC_CON0, 1), 313 MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3036_EMMC_CON1, 0), 314 315 COMPOSITE(0, "i2s_src", mux_pll_src_3plls_p, 0, 316 RK2928_CLKSEL_CON(3), 14, 2, MFLAGS, 0, 7, DFLAGS, 317 RK2928_CLKGATE_CON(0), 9, GFLAGS), 318 COMPOSITE_FRACMUX(0, "i2s_frac", "i2s_src", CLK_SET_RATE_PARENT, 319 RK2928_CLKSEL_CON(7), 0, 320 RK2928_CLKGATE_CON(0), 10, GFLAGS, 321 &rk3036_i2s_fracmux), 322 COMPOSITE_NODIV(SCLK_I2S_OUT, "i2s_clkout", mux_i2s_clkout_p, 0, 323 RK2928_CLKSEL_CON(3), 12, 1, MFLAGS, 324 RK2928_CLKGATE_CON(0), 13, GFLAGS), 325 GATE(SCLK_I2S, "sclk_i2s", "i2s_pre", CLK_SET_RATE_PARENT, 326 RK2928_CLKGATE_CON(0), 14, GFLAGS), 327 328 COMPOSITE(0, "spdif_src", mux_pll_src_3plls_p, 0, 329 RK2928_CLKSEL_CON(5), 10, 2, MFLAGS, 0, 7, DFLAGS, 330 RK2928_CLKGATE_CON(2), 10, GFLAGS), 331 COMPOSITE_FRACMUX(0, "spdif_frac", "spdif_src", 0, 332 RK2928_CLKSEL_CON(9), 0, 333 RK2928_CLKGATE_CON(2), 12, GFLAGS, 334 &rk3036_spdif_fracmux), 335 336 GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin12m", CLK_IGNORE_UNUSED, 337 RK2928_CLKGATE_CON(1), 5, GFLAGS), 338 339 COMPOSITE(SCLK_GPU, "sclk_gpu", mux_pll_src_3plls_p, 0, 340 RK2928_CLKSEL_CON(34), 8, 2, MFLAGS, 0, 5, DFLAGS, 341 RK2928_CLKGATE_CON(3), 13, GFLAGS), 342 343 COMPOSITE(SCLK_SPI, "sclk_spi", mux_pll_src_3plls_p, 0, 344 RK2928_CLKSEL_CON(25), 8, 2, MFLAGS, 0, 7, DFLAGS, 345 RK2928_CLKGATE_CON(2), 9, GFLAGS), 346 347 COMPOSITE(SCLK_NANDC, "sclk_nandc", mux_pll_src_3plls_p, 0, 348 RK2928_CLKSEL_CON(16), 8, 2, MFLAGS, 10, 5, DFLAGS, 349 RK2928_CLKGATE_CON(10), 4, GFLAGS), 350 351 COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_apll_dpll_gpll_usb480m_p, 0, 352 RK2928_CLKSEL_CON(16), 0, 2, MFLAGS, 2, 5, DFLAGS, 353 RK2928_CLKGATE_CON(10), 5, GFLAGS), 354 355 COMPOSITE_NOGATE(SCLK_MACPLL, "mac_pll_src", mux_pll_src_3plls_p, CLK_SET_RATE_NO_REPARENT, 356 RK2928_CLKSEL_CON(21), 0, 2, MFLAGS, 9, 5, DFLAGS), 357 MUX(SCLK_MACREF, "mac_clk_ref", mux_mac_p, CLK_SET_RATE_PARENT, 358 RK2928_CLKSEL_CON(21), 3, 1, MFLAGS), 359 360 COMPOSITE_NOMUX(SCLK_MAC, "mac_clk", "mac_clk_ref", 0, 361 RK2928_CLKSEL_CON(21), 4, 5, DFLAGS, 362 RK2928_CLKGATE_CON(2), 6, GFLAGS), 363 FACTOR(0, "sclk_macref_out", "hclk_peri_src", 0, 1, 2), 364 365 MUX(SCLK_HDMI, "dclk_hdmi", mux_dclk_p, 0, 366 RK2928_CLKSEL_CON(31), 0, 1, MFLAGS), 367 368 /* 369 * Clock-Architecture Diagram 3 370 */ 371 372 /* aclk_cpu gates */ 373 GATE(0, "sclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS), 374 GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS), 375 376 /* hclk_cpu gates */ 377 GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 6, GFLAGS), 378 379 /* pclk_cpu gates */ 380 GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS), 381 GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS), 382 GATE(PCLK_ACODEC, "pclk_acodec", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 14, GFLAGS), 383 GATE(PCLK_HDMI, "pclk_hdmi", "pclk_cpu", 0, RK2928_CLKGATE_CON(3), 8, GFLAGS), 384 385 /* aclk_vio gates */ 386 GATE(ACLK_VIO, "aclk_vio", "aclk_disp1_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 13, GFLAGS), 387 GATE(ACLK_LCDC, "aclk_lcdc", "aclk_disp1_pre", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS), 388 389 GATE(HCLK_VIO_BUS, "hclk_vio_bus", "hclk_disp_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(6), 12, GFLAGS), 390 GATE(HCLK_LCDC, "hclk_lcdc", "hclk_disp_pre", 0, RK2928_CLKGATE_CON(9), 5, GFLAGS), 391 392 393 /* xin24m gates */ 394 GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK2928_CLKGATE_CON(10), 0, GFLAGS), 395 GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, RK2928_CLKGATE_CON(10), 1, GFLAGS), 396 397 /* aclk_peri gates */ 398 GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS), 399 GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS), 400 GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS), 401 GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 15, GFLAGS), 402 403 /* hclk_peri gates */ 404 GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 0, GFLAGS), 405 GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 13, GFLAGS), 406 GATE(0, "hclk_peri_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 14, GFLAGS), 407 GATE(HCLK_NANDC, "hclk_nandc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 9, GFLAGS), 408 GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 10, GFLAGS), 409 GATE(HCLK_SDIO, "hclk_sdio", "hclk_peri", 0, RK2928_CLKGATE_CON(5), 11, GFLAGS), 410 GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 0, GFLAGS), 411 GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 13, GFLAGS), 412 GATE(HCLK_OTG1, "hclk_otg1", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(7), 3, GFLAGS), 413 GATE(HCLK_I2S, "hclk_i2s", "hclk_peri", 0, RK2928_CLKGATE_CON(7), 2, GFLAGS), 414 GATE(0, "hclk_sfc", "hclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(3), 14, GFLAGS), 415 GATE(HCLK_MAC, "hclk_mac", "hclk_peri", 0, RK2928_CLKGATE_CON(3), 5, GFLAGS), 416 417 /* pclk_peri gates */ 418 GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS), 419 GATE(0, "pclk_efuse", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 2, GFLAGS), 420 GATE(PCLK_TIMER, "pclk_timer", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 7, GFLAGS), 421 GATE(PCLK_PWM, "pclk_pwm", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 10, GFLAGS), 422 GATE(PCLK_SPI, "pclk_spi", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS), 423 GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS), 424 GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 0, GFLAGS), 425 GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 1, GFLAGS), 426 GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS), 427 GATE(PCLK_I2C0, "pclk_i2c0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 4, GFLAGS), 428 GATE(PCLK_I2C1, "pclk_i2c1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 5, GFLAGS), 429 GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS), 430 GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 9, GFLAGS), 431 GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 10, GFLAGS), 432 GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 11, GFLAGS), 433 }; 434 435 static const char *const rk3036_critical_clocks[] __initconst = { 436 "aclk_cpu", 437 "aclk_peri", 438 "hclk_peri", 439 "pclk_peri", 440 "pclk_ddrupctl", 441 }; 442 443 static void __init rk3036_clk_init(struct device_node *np) 444 { 445 struct rockchip_clk_provider *ctx; 446 void __iomem *reg_base; 447 struct clk *clk; 448 449 reg_base = of_iomap(np, 0); 450 if (!reg_base) { 451 pr_err("%s: could not map cru region\n", __func__); 452 return; 453 } 454 455 /* 456 * Make uart_pll_clk a child of the gpll, as all other sources are 457 * not that usable / stable. 458 */ 459 writel_relaxed(HIWORD_UPDATE(0x2, 0x3, 10), 460 reg_base + RK2928_CLKSEL_CON(13)); 461 462 ctx = rockchip_clk_init(np, reg_base, CLK_NR_CLKS); 463 if (IS_ERR(ctx)) { 464 pr_err("%s: rockchip clk init failed\n", __func__); 465 iounmap(reg_base); 466 return; 467 } 468 469 clk = clk_register_fixed_factor(NULL, "usb480m", "xin24m", 0, 20, 1); 470 if (IS_ERR(clk)) 471 pr_warn("%s: could not register clock usb480m: %ld\n", 472 __func__, PTR_ERR(clk)); 473 474 rockchip_clk_register_plls(ctx, rk3036_pll_clks, 475 ARRAY_SIZE(rk3036_pll_clks), 476 RK3036_GRF_SOC_STATUS0); 477 rockchip_clk_register_branches(ctx, rk3036_clk_branches, 478 ARRAY_SIZE(rk3036_clk_branches)); 479 rockchip_clk_protect_critical(rk3036_critical_clocks, 480 ARRAY_SIZE(rk3036_critical_clocks)); 481 482 rockchip_clk_register_armclk(ctx, ARMCLK, "armclk", 483 mux_armclk_p, ARRAY_SIZE(mux_armclk_p), 484 &rk3036_cpuclk_data, rk3036_cpuclk_rates, 485 ARRAY_SIZE(rk3036_cpuclk_rates)); 486 487 rockchip_register_softrst(np, 9, reg_base + RK2928_SOFTRST_CON(0), 488 ROCKCHIP_SOFTRST_HIWORD_MASK); 489 490 rockchip_register_restart_notifier(ctx, RK2928_GLB_SRST_FST, NULL); 491 492 rockchip_clk_of_add_provider(np, ctx); 493 } 494 CLK_OF_DECLARE(rk3036_cru, "rockchip,rk3036-cru", rk3036_clk_init); 495