1 /* 2 * Copyright (c) 2016 Maxime Ripard. All rights reserved. 3 * 4 * This software is licensed under the terms of the GNU General Public 5 * License version 2, as published by the Free Software Foundation, and 6 * may be copied, distributed, and modified under those terms. 7 * 8 * This program is distributed in the hope that it will be useful, 9 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11 * GNU General Public License for more details. 12 */ 13 14 #include <linux/clk-provider.h> 15 #include <linux/io.h> 16 #include <linux/of_address.h> 17 18 #include "ccu_common.h" 19 #include "ccu_reset.h" 20 21 #include "ccu_div.h" 22 #include "ccu_gate.h" 23 #include "ccu_mp.h" 24 #include "ccu_mult.h" 25 #include "ccu_nk.h" 26 #include "ccu_nkm.h" 27 #include "ccu_nkmp.h" 28 #include "ccu_nm.h" 29 #include "ccu_phase.h" 30 31 #include "ccu-sun8i-a23-a33.h" 32 33 static struct ccu_nkmp pll_cpux_clk = { 34 .enable = BIT(31), 35 .lock = BIT(28), 36 37 .n = _SUNXI_CCU_MULT(8, 5), 38 .k = _SUNXI_CCU_MULT(4, 2), 39 .m = _SUNXI_CCU_DIV(0, 2), 40 .p = _SUNXI_CCU_DIV_MAX(16, 2, 4), 41 42 .common = { 43 .reg = 0x000, 44 .hw.init = CLK_HW_INIT("pll-cpux", "osc24M", 45 &ccu_nkmp_ops, 46 0), 47 }, 48 }; 49 50 /* 51 * The Audio PLL is supposed to have 4 outputs: 3 fixed factors from 52 * the base (2x, 4x and 8x), and one variable divider (the one true 53 * pll audio). 54 * 55 * With sigma-delta modulation for fractional-N on the audio PLL, 56 * we have to use specific dividers. This means the variable divider 57 * can no longer be used, as the audio codec requests the exact clock 58 * rates we support through this mechanism. So we now hard code the 59 * variable divider to 1. This means the clock rates will no longer 60 * match the clock names. 61 */ 62 #define SUN8I_A33_PLL_AUDIO_REG 0x008 63 64 static struct ccu_sdm_setting pll_audio_sdm_table[] = { 65 { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 }, 66 { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 }, 67 }; 68 69 static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base", 70 "osc24M", 0x008, 71 8, 7, /* N */ 72 0, 5, /* M */ 73 pll_audio_sdm_table, BIT(24), 74 0x284, BIT(31), 75 BIT(31), /* gate */ 76 BIT(28), /* lock */ 77 CLK_SET_RATE_UNGATE); 78 79 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video", 80 "osc24M", 0x010, 81 8, 7, /* N */ 82 0, 4, /* M */ 83 BIT(24), /* frac enable */ 84 BIT(25), /* frac select */ 85 270000000, /* frac rate 0 */ 86 297000000, /* frac rate 1 */ 87 BIT(31), /* gate */ 88 BIT(28), /* lock */ 89 CLK_SET_RATE_UNGATE); 90 91 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve", 92 "osc24M", 0x018, 93 8, 7, /* N */ 94 0, 4, /* M */ 95 BIT(24), /* frac enable */ 96 BIT(25), /* frac select */ 97 270000000, /* frac rate 0 */ 98 297000000, /* frac rate 1 */ 99 BIT(31), /* gate */ 100 BIT(28), /* lock */ 101 CLK_SET_RATE_UNGATE); 102 103 static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_ddr0_clk, "pll-ddr0", 104 "osc24M", 0x020, 105 8, 5, /* N */ 106 4, 2, /* K */ 107 0, 2, /* M */ 108 BIT(31), /* gate */ 109 BIT(28), /* lock */ 110 0); 111 112 static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph_clk, "pll-periph", 113 "osc24M", 0x028, 114 8, 5, /* N */ 115 4, 2, /* K */ 116 BIT(31), /* gate */ 117 BIT(28), /* lock */ 118 2, /* post-div */ 119 CLK_SET_RATE_UNGATE); 120 121 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu", 122 "osc24M", 0x038, 123 8, 7, /* N */ 124 0, 4, /* M */ 125 BIT(24), /* frac enable */ 126 BIT(25), /* frac select */ 127 270000000, /* frac rate 0 */ 128 297000000, /* frac rate 1 */ 129 BIT(31), /* gate */ 130 BIT(28), /* lock */ 131 CLK_SET_RATE_UNGATE); 132 133 /* 134 * The MIPI PLL has 2 modes: "MIPI" and "HDMI". 135 * 136 * The MIPI mode is a standard NKM-style clock. The HDMI mode is an 137 * integer / fractional clock with switchable multipliers and dividers. 138 * This is not supported here. We hardcode the PLL to MIPI mode. 139 */ 140 #define SUN8I_A33_PLL_MIPI_REG 0x040 141 static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_mipi_clk, "pll-mipi", 142 "pll-video", 0x040, 143 8, 4, /* N */ 144 4, 2, /* K */ 145 0, 4, /* M */ 146 BIT(31) | BIT(23) | BIT(22), /* gate */ 147 BIT(28), /* lock */ 148 CLK_SET_RATE_UNGATE); 149 150 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_hsic_clk, "pll-hsic", 151 "osc24M", 0x044, 152 8, 7, /* N */ 153 0, 4, /* M */ 154 BIT(24), /* frac enable */ 155 BIT(25), /* frac select */ 156 270000000, /* frac rate 0 */ 157 297000000, /* frac rate 1 */ 158 BIT(31), /* gate */ 159 BIT(28), /* lock */ 160 CLK_SET_RATE_UNGATE); 161 162 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_de_clk, "pll-de", 163 "osc24M", 0x048, 164 8, 7, /* N */ 165 0, 4, /* M */ 166 BIT(24), /* frac enable */ 167 BIT(25), /* frac select */ 168 270000000, /* frac rate 0 */ 169 297000000, /* frac rate 1 */ 170 BIT(31), /* gate */ 171 BIT(28), /* lock */ 172 CLK_SET_RATE_UNGATE); 173 174 static struct ccu_mult pll_ddr1_clk = { 175 .enable = BIT(31), 176 .lock = BIT(28), 177 .mult = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 6, 0, 12, 0), 178 .common = { 179 .reg = 0x04c, 180 .hw.init = CLK_HW_INIT("pll-ddr1", "osc24M", 181 &ccu_mult_ops, 182 CLK_SET_RATE_UNGATE), 183 }, 184 }; 185 186 static const char * const cpux_parents[] = { "osc32k", "osc24M", 187 "pll-cpux" , "pll-cpux" }; 188 static SUNXI_CCU_MUX(cpux_clk, "cpux", cpux_parents, 189 0x050, 16, 2, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT); 190 191 static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0); 192 193 static const char * const ahb1_parents[] = { "osc32k", "osc24M", 194 "axi" , "pll-periph" }; 195 static const struct ccu_mux_var_prediv ahb1_predivs[] = { 196 { .index = 3, .shift = 6, .width = 2 }, 197 }; 198 static struct ccu_div ahb1_clk = { 199 .div = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO), 200 201 .mux = { 202 .shift = 12, 203 .width = 2, 204 205 .var_predivs = ahb1_predivs, 206 .n_var_predivs = ARRAY_SIZE(ahb1_predivs), 207 }, 208 209 .common = { 210 .reg = 0x054, 211 .features = CCU_FEATURE_VARIABLE_PREDIV, 212 .hw.init = CLK_HW_INIT_PARENTS("ahb1", 213 ahb1_parents, 214 &ccu_div_ops, 215 0), 216 }, 217 }; 218 219 static struct clk_div_table apb1_div_table[] = { 220 { .val = 0, .div = 2 }, 221 { .val = 1, .div = 2 }, 222 { .val = 2, .div = 4 }, 223 { .val = 3, .div = 8 }, 224 { /* Sentinel */ }, 225 }; 226 static SUNXI_CCU_DIV_TABLE(apb1_clk, "apb1", "ahb1", 227 0x054, 8, 2, apb1_div_table, 0); 228 229 static const char * const apb2_parents[] = { "osc32k", "osc24M", 230 "pll-periph" , "pll-periph" }; 231 static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", apb2_parents, 0x058, 232 0, 5, /* M */ 233 16, 2, /* P */ 234 24, 2, /* mux */ 235 0); 236 237 static SUNXI_CCU_GATE(bus_mipi_dsi_clk, "bus-mipi-dsi", "ahb1", 238 0x060, BIT(1), 0); 239 static SUNXI_CCU_GATE(bus_ss_clk, "bus-ss", "ahb1", 240 0x060, BIT(5), 0); 241 static SUNXI_CCU_GATE(bus_dma_clk, "bus-dma", "ahb1", 242 0x060, BIT(6), 0); 243 static SUNXI_CCU_GATE(bus_mmc0_clk, "bus-mmc0", "ahb1", 244 0x060, BIT(8), 0); 245 static SUNXI_CCU_GATE(bus_mmc1_clk, "bus-mmc1", "ahb1", 246 0x060, BIT(9), 0); 247 static SUNXI_CCU_GATE(bus_mmc2_clk, "bus-mmc2", "ahb1", 248 0x060, BIT(10), 0); 249 static SUNXI_CCU_GATE(bus_nand_clk, "bus-nand", "ahb1", 250 0x060, BIT(13), 0); 251 static SUNXI_CCU_GATE(bus_dram_clk, "bus-dram", "ahb1", 252 0x060, BIT(14), 0); 253 static SUNXI_CCU_GATE(bus_hstimer_clk, "bus-hstimer", "ahb1", 254 0x060, BIT(19), 0); 255 static SUNXI_CCU_GATE(bus_spi0_clk, "bus-spi0", "ahb1", 256 0x060, BIT(20), 0); 257 static SUNXI_CCU_GATE(bus_spi1_clk, "bus-spi1", "ahb1", 258 0x060, BIT(21), 0); 259 static SUNXI_CCU_GATE(bus_otg_clk, "bus-otg", "ahb1", 260 0x060, BIT(24), 0); 261 static SUNXI_CCU_GATE(bus_ehci_clk, "bus-ehci", "ahb1", 262 0x060, BIT(26), 0); 263 static SUNXI_CCU_GATE(bus_ohci_clk, "bus-ohci", "ahb1", 264 0x060, BIT(29), 0); 265 266 static SUNXI_CCU_GATE(bus_ve_clk, "bus-ve", "ahb1", 267 0x064, BIT(0), 0); 268 static SUNXI_CCU_GATE(bus_lcd_clk, "bus-lcd", "ahb1", 269 0x064, BIT(4), 0); 270 static SUNXI_CCU_GATE(bus_csi_clk, "bus-csi", "ahb1", 271 0x064, BIT(8), 0); 272 static SUNXI_CCU_GATE(bus_de_be_clk, "bus-de-be", "ahb1", 273 0x064, BIT(12), 0); 274 static SUNXI_CCU_GATE(bus_de_fe_clk, "bus-de-fe", "ahb1", 275 0x064, BIT(14), 0); 276 static SUNXI_CCU_GATE(bus_gpu_clk, "bus-gpu", "ahb1", 277 0x064, BIT(20), 0); 278 static SUNXI_CCU_GATE(bus_msgbox_clk, "bus-msgbox", "ahb1", 279 0x064, BIT(21), 0); 280 static SUNXI_CCU_GATE(bus_spinlock_clk, "bus-spinlock", "ahb1", 281 0x064, BIT(22), 0); 282 static SUNXI_CCU_GATE(bus_drc_clk, "bus-drc", "ahb1", 283 0x064, BIT(25), 0); 284 static SUNXI_CCU_GATE(bus_sat_clk, "bus-sat", "ahb1", 285 0x064, BIT(26), 0); 286 287 static SUNXI_CCU_GATE(bus_codec_clk, "bus-codec", "apb1", 288 0x068, BIT(0), 0); 289 static SUNXI_CCU_GATE(bus_pio_clk, "bus-pio", "apb1", 290 0x068, BIT(5), 0); 291 static SUNXI_CCU_GATE(bus_i2s0_clk, "bus-i2s0", "apb1", 292 0x068, BIT(12), 0); 293 static SUNXI_CCU_GATE(bus_i2s1_clk, "bus-i2s1", "apb1", 294 0x068, BIT(13), 0); 295 296 static SUNXI_CCU_GATE(bus_i2c0_clk, "bus-i2c0", "apb2", 297 0x06c, BIT(0), 0); 298 static SUNXI_CCU_GATE(bus_i2c1_clk, "bus-i2c1", "apb2", 299 0x06c, BIT(1), 0); 300 static SUNXI_CCU_GATE(bus_i2c2_clk, "bus-i2c2", "apb2", 301 0x06c, BIT(2), 0); 302 static SUNXI_CCU_GATE(bus_uart0_clk, "bus-uart0", "apb2", 303 0x06c, BIT(16), 0); 304 static SUNXI_CCU_GATE(bus_uart1_clk, "bus-uart1", "apb2", 305 0x06c, BIT(17), 0); 306 static SUNXI_CCU_GATE(bus_uart2_clk, "bus-uart2", "apb2", 307 0x06c, BIT(18), 0); 308 static SUNXI_CCU_GATE(bus_uart3_clk, "bus-uart3", "apb2", 309 0x06c, BIT(19), 0); 310 static SUNXI_CCU_GATE(bus_uart4_clk, "bus-uart4", "apb2", 311 0x06c, BIT(20), 0); 312 313 static const char * const mod0_default_parents[] = { "osc24M", "pll-periph" }; 314 static SUNXI_CCU_MP_WITH_MUX_GATE(nand_clk, "nand", mod0_default_parents, 0x080, 315 0, 4, /* M */ 316 16, 2, /* P */ 317 24, 2, /* mux */ 318 BIT(31), /* gate */ 319 0); 320 321 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_default_parents, 0x088, 322 0, 4, /* M */ 323 16, 2, /* P */ 324 24, 2, /* mux */ 325 BIT(31), /* gate */ 326 0); 327 328 static SUNXI_CCU_PHASE(mmc0_sample_clk, "mmc0_sample", "mmc0", 329 0x088, 20, 3, 0); 330 static SUNXI_CCU_PHASE(mmc0_output_clk, "mmc0_output", "mmc0", 331 0x088, 8, 3, 0); 332 333 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_default_parents, 0x08c, 334 0, 4, /* M */ 335 16, 2, /* P */ 336 24, 2, /* mux */ 337 BIT(31), /* gate */ 338 0); 339 340 static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1_sample", "mmc1", 341 0x08c, 20, 3, 0); 342 static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1_output", "mmc1", 343 0x08c, 8, 3, 0); 344 345 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents, 0x090, 346 0, 4, /* M */ 347 16, 2, /* P */ 348 24, 2, /* mux */ 349 BIT(31), /* gate */ 350 0); 351 352 static SUNXI_CCU_PHASE(mmc2_sample_clk, "mmc2_sample", "mmc2", 353 0x090, 20, 3, 0); 354 static SUNXI_CCU_PHASE(mmc2_output_clk, "mmc2_output", "mmc2", 355 0x090, 8, 3, 0); 356 357 static SUNXI_CCU_MP_WITH_MUX_GATE(ss_clk, "ss", mod0_default_parents, 0x09c, 358 0, 4, /* M */ 359 16, 2, /* P */ 360 24, 2, /* mux */ 361 BIT(31), /* gate */ 362 0); 363 364 static SUNXI_CCU_MP_WITH_MUX_GATE(spi0_clk, "spi0", mod0_default_parents, 0x0a0, 365 0, 4, /* M */ 366 16, 2, /* P */ 367 24, 2, /* mux */ 368 BIT(31), /* gate */ 369 0); 370 371 static SUNXI_CCU_MP_WITH_MUX_GATE(spi1_clk, "spi1", mod0_default_parents, 0x0a4, 372 0, 4, /* M */ 373 16, 2, /* P */ 374 24, 2, /* mux */ 375 BIT(31), /* gate */ 376 0); 377 378 static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x", 379 "pll-audio-2x", "pll-audio" }; 380 static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents, 381 0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT); 382 383 static SUNXI_CCU_MUX_WITH_GATE(i2s1_clk, "i2s1", i2s_parents, 384 0x0b4, 16, 2, BIT(31), CLK_SET_RATE_PARENT); 385 386 /* TODO: the parent for most of the USB clocks is not known */ 387 static SUNXI_CCU_GATE(usb_phy0_clk, "usb-phy0", "osc24M", 388 0x0cc, BIT(8), 0); 389 static SUNXI_CCU_GATE(usb_phy1_clk, "usb-phy1", "osc24M", 390 0x0cc, BIT(9), 0); 391 static SUNXI_CCU_GATE(usb_hsic_clk, "usb-hsic", "pll-hsic", 392 0x0cc, BIT(10), 0); 393 static SUNXI_CCU_GATE(usb_hsic_12M_clk, "usb-hsic-12M", "osc24M", 394 0x0cc, BIT(11), 0); 395 static SUNXI_CCU_GATE(usb_ohci_clk, "usb-ohci", "osc24M", 396 0x0cc, BIT(16), 0); 397 398 static SUNXI_CCU_M(dram_clk, "dram", "pll-ddr", 399 0x0f4, 0, 4, CLK_IS_CRITICAL); 400 401 static const char * const pll_ddr_parents[] = { "pll-ddr0", "pll-ddr1" }; 402 static SUNXI_CCU_MUX(pll_ddr_clk, "pll-ddr", pll_ddr_parents, 403 0x0f8, 16, 1, 0); 404 405 static SUNXI_CCU_GATE(dram_ve_clk, "dram-ve", "dram", 406 0x100, BIT(0), 0); 407 static SUNXI_CCU_GATE(dram_csi_clk, "dram-csi", "dram", 408 0x100, BIT(1), 0); 409 static SUNXI_CCU_GATE(dram_drc_clk, "dram-drc", "dram", 410 0x100, BIT(16), 0); 411 static SUNXI_CCU_GATE(dram_de_fe_clk, "dram-de-fe", "dram", 412 0x100, BIT(24), 0); 413 static SUNXI_CCU_GATE(dram_de_be_clk, "dram-de-be", "dram", 414 0x100, BIT(26), 0); 415 416 static const char * const de_parents[] = { "pll-video", "pll-periph-2x", 417 "pll-gpu", "pll-de" }; 418 static const u8 de_table[] = { 0, 2, 3, 5 }; 419 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_be_clk, "de-be", 420 de_parents, de_table, 421 0x104, 0, 4, 24, 3, BIT(31), 0); 422 423 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_fe_clk, "de-fe", 424 de_parents, de_table, 425 0x10c, 0, 4, 24, 3, BIT(31), 0); 426 427 static const char * const lcd_ch0_parents[] = { "pll-video", "pll-video-2x", 428 "pll-mipi" }; 429 static const u8 lcd_ch0_table[] = { 0, 2, 4 }; 430 static SUNXI_CCU_MUX_TABLE_WITH_GATE(lcd_ch0_clk, "lcd-ch0", 431 lcd_ch0_parents, lcd_ch0_table, 432 0x118, 24, 3, BIT(31), 433 CLK_SET_RATE_PARENT); 434 435 static const char * const lcd_ch1_parents[] = { "pll-video", "pll-video-2x" }; 436 static const u8 lcd_ch1_table[] = { 0, 2 }; 437 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(lcd_ch1_clk, "lcd-ch1", 438 lcd_ch1_parents, lcd_ch1_table, 439 0x12c, 0, 4, 24, 2, BIT(31), 0); 440 441 static const char * const csi_sclk_parents[] = { "pll-video", "pll-de", 442 "pll-mipi", "pll-ve" }; 443 static const u8 csi_sclk_table[] = { 0, 3, 4, 5 }; 444 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_sclk_clk, "csi-sclk", 445 csi_sclk_parents, csi_sclk_table, 446 0x134, 16, 4, 24, 3, BIT(31), 0); 447 448 static const char * const csi_mclk_parents[] = { "pll-video", "pll-de", 449 "osc24M" }; 450 static const u8 csi_mclk_table[] = { 0, 3, 5 }; 451 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_mclk_clk, "csi-mclk", 452 csi_mclk_parents, csi_mclk_table, 453 0x134, 0, 5, 8, 3, BIT(15), 0); 454 455 static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve", 456 0x13c, 16, 3, BIT(31), CLK_SET_RATE_PARENT); 457 458 static SUNXI_CCU_GATE(ac_dig_clk, "ac-dig", "pll-audio", 459 0x140, BIT(31), CLK_SET_RATE_PARENT); 460 static SUNXI_CCU_GATE(ac_dig_4x_clk, "ac-dig-4x", "pll-audio-4x", 461 0x140, BIT(30), CLK_SET_RATE_PARENT); 462 static SUNXI_CCU_GATE(avs_clk, "avs", "osc24M", 463 0x144, BIT(31), 0); 464 465 static const char * const mbus_parents[] = { "osc24M", "pll-periph-2x", 466 "pll-ddr0", "pll-ddr1" }; 467 static SUNXI_CCU_M_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents, 468 0x15c, 0, 3, 24, 2, BIT(31), CLK_IS_CRITICAL); 469 470 static const char * const dsi_sclk_parents[] = { "pll-video", "pll-video-2x" }; 471 static const u8 dsi_sclk_table[] = { 0, 2 }; 472 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(dsi_sclk_clk, "dsi-sclk", 473 dsi_sclk_parents, dsi_sclk_table, 474 0x168, 16, 4, 24, 2, BIT(31), 0); 475 476 static const char * const dsi_dphy_parents[] = { "pll-video", "pll-periph" }; 477 static const u8 dsi_dphy_table[] = { 0, 2 }; 478 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(dsi_dphy_clk, "dsi-dphy", 479 dsi_dphy_parents, dsi_dphy_table, 480 0x168, 0, 4, 8, 2, BIT(15), 0); 481 482 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(drc_clk, "drc", 483 de_parents, de_table, 484 0x180, 0, 4, 24, 3, BIT(31), 0); 485 486 static SUNXI_CCU_M_WITH_GATE(gpu_clk, "gpu", "pll-gpu", 487 0x1a0, 0, 3, BIT(31), CLK_SET_RATE_PARENT); 488 489 static const char * const ats_parents[] = { "osc24M", "pll-periph" }; 490 static SUNXI_CCU_M_WITH_MUX_GATE(ats_clk, "ats", ats_parents, 491 0x1b0, 0, 3, 24, 2, BIT(31), 0); 492 493 static struct ccu_common *sun8i_a33_ccu_clks[] = { 494 &pll_cpux_clk.common, 495 &pll_audio_base_clk.common, 496 &pll_video_clk.common, 497 &pll_ve_clk.common, 498 &pll_ddr0_clk.common, 499 &pll_periph_clk.common, 500 &pll_gpu_clk.common, 501 &pll_mipi_clk.common, 502 &pll_hsic_clk.common, 503 &pll_de_clk.common, 504 &pll_ddr1_clk.common, 505 &pll_ddr_clk.common, 506 &cpux_clk.common, 507 &axi_clk.common, 508 &ahb1_clk.common, 509 &apb1_clk.common, 510 &apb2_clk.common, 511 &bus_mipi_dsi_clk.common, 512 &bus_ss_clk.common, 513 &bus_dma_clk.common, 514 &bus_mmc0_clk.common, 515 &bus_mmc1_clk.common, 516 &bus_mmc2_clk.common, 517 &bus_nand_clk.common, 518 &bus_dram_clk.common, 519 &bus_hstimer_clk.common, 520 &bus_spi0_clk.common, 521 &bus_spi1_clk.common, 522 &bus_otg_clk.common, 523 &bus_ehci_clk.common, 524 &bus_ohci_clk.common, 525 &bus_ve_clk.common, 526 &bus_lcd_clk.common, 527 &bus_csi_clk.common, 528 &bus_de_fe_clk.common, 529 &bus_de_be_clk.common, 530 &bus_gpu_clk.common, 531 &bus_msgbox_clk.common, 532 &bus_spinlock_clk.common, 533 &bus_drc_clk.common, 534 &bus_sat_clk.common, 535 &bus_codec_clk.common, 536 &bus_pio_clk.common, 537 &bus_i2s0_clk.common, 538 &bus_i2s1_clk.common, 539 &bus_i2c0_clk.common, 540 &bus_i2c1_clk.common, 541 &bus_i2c2_clk.common, 542 &bus_uart0_clk.common, 543 &bus_uart1_clk.common, 544 &bus_uart2_clk.common, 545 &bus_uart3_clk.common, 546 &bus_uart4_clk.common, 547 &nand_clk.common, 548 &mmc0_clk.common, 549 &mmc0_sample_clk.common, 550 &mmc0_output_clk.common, 551 &mmc1_clk.common, 552 &mmc1_sample_clk.common, 553 &mmc1_output_clk.common, 554 &mmc2_clk.common, 555 &mmc2_sample_clk.common, 556 &mmc2_output_clk.common, 557 &ss_clk.common, 558 &spi0_clk.common, 559 &spi1_clk.common, 560 &i2s0_clk.common, 561 &i2s1_clk.common, 562 &usb_phy0_clk.common, 563 &usb_phy1_clk.common, 564 &usb_hsic_clk.common, 565 &usb_hsic_12M_clk.common, 566 &usb_ohci_clk.common, 567 &dram_clk.common, 568 &dram_ve_clk.common, 569 &dram_csi_clk.common, 570 &dram_drc_clk.common, 571 &dram_de_fe_clk.common, 572 &dram_de_be_clk.common, 573 &de_be_clk.common, 574 &de_fe_clk.common, 575 &lcd_ch0_clk.common, 576 &lcd_ch1_clk.common, 577 &csi_sclk_clk.common, 578 &csi_mclk_clk.common, 579 &ve_clk.common, 580 &ac_dig_clk.common, 581 &ac_dig_4x_clk.common, 582 &avs_clk.common, 583 &mbus_clk.common, 584 &dsi_sclk_clk.common, 585 &dsi_dphy_clk.common, 586 &drc_clk.common, 587 &gpu_clk.common, 588 &ats_clk.common, 589 }; 590 591 /* We hardcode the divider to 1 for now */ 592 static CLK_FIXED_FACTOR(pll_audio_clk, "pll-audio", 593 "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); 594 static CLK_FIXED_FACTOR(pll_audio_2x_clk, "pll-audio-2x", 595 "pll-audio-base", 2, 1, CLK_SET_RATE_PARENT); 596 static CLK_FIXED_FACTOR(pll_audio_4x_clk, "pll-audio-4x", 597 "pll-audio-base", 1, 1, CLK_SET_RATE_PARENT); 598 static CLK_FIXED_FACTOR(pll_audio_8x_clk, "pll-audio-8x", 599 "pll-audio-base", 1, 2, CLK_SET_RATE_PARENT); 600 static CLK_FIXED_FACTOR(pll_periph_2x_clk, "pll-periph-2x", 601 "pll-periph", 1, 2, 0); 602 static CLK_FIXED_FACTOR(pll_video_2x_clk, "pll-video-2x", 603 "pll-video", 1, 2, 0); 604 605 static struct clk_hw_onecell_data sun8i_a33_hw_clks = { 606 .hws = { 607 [CLK_PLL_CPUX] = &pll_cpux_clk.common.hw, 608 [CLK_PLL_AUDIO_BASE] = &pll_audio_base_clk.common.hw, 609 [CLK_PLL_AUDIO] = &pll_audio_clk.hw, 610 [CLK_PLL_AUDIO_2X] = &pll_audio_2x_clk.hw, 611 [CLK_PLL_AUDIO_4X] = &pll_audio_4x_clk.hw, 612 [CLK_PLL_AUDIO_8X] = &pll_audio_8x_clk.hw, 613 [CLK_PLL_VIDEO] = &pll_video_clk.common.hw, 614 [CLK_PLL_VIDEO_2X] = &pll_video_2x_clk.hw, 615 [CLK_PLL_VE] = &pll_ve_clk.common.hw, 616 [CLK_PLL_DDR0] = &pll_ddr0_clk.common.hw, 617 [CLK_PLL_PERIPH] = &pll_periph_clk.common.hw, 618 [CLK_PLL_PERIPH_2X] = &pll_periph_2x_clk.hw, 619 [CLK_PLL_GPU] = &pll_gpu_clk.common.hw, 620 [CLK_PLL_MIPI] = &pll_mipi_clk.common.hw, 621 [CLK_PLL_HSIC] = &pll_hsic_clk.common.hw, 622 [CLK_PLL_DE] = &pll_de_clk.common.hw, 623 [CLK_PLL_DDR1] = &pll_ddr1_clk.common.hw, 624 [CLK_PLL_DDR] = &pll_ddr_clk.common.hw, 625 [CLK_CPUX] = &cpux_clk.common.hw, 626 [CLK_AXI] = &axi_clk.common.hw, 627 [CLK_AHB1] = &ahb1_clk.common.hw, 628 [CLK_APB1] = &apb1_clk.common.hw, 629 [CLK_APB2] = &apb2_clk.common.hw, 630 [CLK_BUS_MIPI_DSI] = &bus_mipi_dsi_clk.common.hw, 631 [CLK_BUS_SS] = &bus_ss_clk.common.hw, 632 [CLK_BUS_DMA] = &bus_dma_clk.common.hw, 633 [CLK_BUS_MMC0] = &bus_mmc0_clk.common.hw, 634 [CLK_BUS_MMC1] = &bus_mmc1_clk.common.hw, 635 [CLK_BUS_MMC2] = &bus_mmc2_clk.common.hw, 636 [CLK_BUS_NAND] = &bus_nand_clk.common.hw, 637 [CLK_BUS_DRAM] = &bus_dram_clk.common.hw, 638 [CLK_BUS_HSTIMER] = &bus_hstimer_clk.common.hw, 639 [CLK_BUS_SPI0] = &bus_spi0_clk.common.hw, 640 [CLK_BUS_SPI1] = &bus_spi1_clk.common.hw, 641 [CLK_BUS_OTG] = &bus_otg_clk.common.hw, 642 [CLK_BUS_EHCI] = &bus_ehci_clk.common.hw, 643 [CLK_BUS_OHCI] = &bus_ohci_clk.common.hw, 644 [CLK_BUS_VE] = &bus_ve_clk.common.hw, 645 [CLK_BUS_LCD] = &bus_lcd_clk.common.hw, 646 [CLK_BUS_CSI] = &bus_csi_clk.common.hw, 647 [CLK_BUS_DE_BE] = &bus_de_be_clk.common.hw, 648 [CLK_BUS_DE_FE] = &bus_de_fe_clk.common.hw, 649 [CLK_BUS_GPU] = &bus_gpu_clk.common.hw, 650 [CLK_BUS_MSGBOX] = &bus_msgbox_clk.common.hw, 651 [CLK_BUS_SPINLOCK] = &bus_spinlock_clk.common.hw, 652 [CLK_BUS_DRC] = &bus_drc_clk.common.hw, 653 [CLK_BUS_SAT] = &bus_sat_clk.common.hw, 654 [CLK_BUS_CODEC] = &bus_codec_clk.common.hw, 655 [CLK_BUS_PIO] = &bus_pio_clk.common.hw, 656 [CLK_BUS_I2S0] = &bus_i2s0_clk.common.hw, 657 [CLK_BUS_I2S1] = &bus_i2s1_clk.common.hw, 658 [CLK_BUS_I2C0] = &bus_i2c0_clk.common.hw, 659 [CLK_BUS_I2C1] = &bus_i2c1_clk.common.hw, 660 [CLK_BUS_I2C2] = &bus_i2c2_clk.common.hw, 661 [CLK_BUS_UART0] = &bus_uart0_clk.common.hw, 662 [CLK_BUS_UART1] = &bus_uart1_clk.common.hw, 663 [CLK_BUS_UART2] = &bus_uart2_clk.common.hw, 664 [CLK_BUS_UART3] = &bus_uart3_clk.common.hw, 665 [CLK_BUS_UART4] = &bus_uart4_clk.common.hw, 666 [CLK_NAND] = &nand_clk.common.hw, 667 [CLK_MMC0] = &mmc0_clk.common.hw, 668 [CLK_MMC0_SAMPLE] = &mmc0_sample_clk.common.hw, 669 [CLK_MMC0_OUTPUT] = &mmc0_output_clk.common.hw, 670 [CLK_MMC1] = &mmc1_clk.common.hw, 671 [CLK_MMC1_SAMPLE] = &mmc1_sample_clk.common.hw, 672 [CLK_MMC1_OUTPUT] = &mmc1_output_clk.common.hw, 673 [CLK_MMC2] = &mmc2_clk.common.hw, 674 [CLK_MMC2_SAMPLE] = &mmc2_sample_clk.common.hw, 675 [CLK_MMC2_OUTPUT] = &mmc2_output_clk.common.hw, 676 [CLK_SS] = &ss_clk.common.hw, 677 [CLK_SPI0] = &spi0_clk.common.hw, 678 [CLK_SPI1] = &spi1_clk.common.hw, 679 [CLK_I2S0] = &i2s0_clk.common.hw, 680 [CLK_I2S1] = &i2s1_clk.common.hw, 681 [CLK_USB_PHY0] = &usb_phy0_clk.common.hw, 682 [CLK_USB_PHY1] = &usb_phy1_clk.common.hw, 683 [CLK_USB_HSIC] = &usb_hsic_clk.common.hw, 684 [CLK_USB_HSIC_12M] = &usb_hsic_12M_clk.common.hw, 685 [CLK_USB_OHCI] = &usb_ohci_clk.common.hw, 686 [CLK_DRAM] = &dram_clk.common.hw, 687 [CLK_DRAM_VE] = &dram_ve_clk.common.hw, 688 [CLK_DRAM_CSI] = &dram_csi_clk.common.hw, 689 [CLK_DRAM_DRC] = &dram_drc_clk.common.hw, 690 [CLK_DRAM_DE_FE] = &dram_de_fe_clk.common.hw, 691 [CLK_DRAM_DE_BE] = &dram_de_be_clk.common.hw, 692 [CLK_DE_BE] = &de_be_clk.common.hw, 693 [CLK_DE_FE] = &de_fe_clk.common.hw, 694 [CLK_LCD_CH0] = &lcd_ch0_clk.common.hw, 695 [CLK_LCD_CH1] = &lcd_ch1_clk.common.hw, 696 [CLK_CSI_SCLK] = &csi_sclk_clk.common.hw, 697 [CLK_CSI_MCLK] = &csi_mclk_clk.common.hw, 698 [CLK_VE] = &ve_clk.common.hw, 699 [CLK_AC_DIG] = &ac_dig_clk.common.hw, 700 [CLK_AC_DIG_4X] = &ac_dig_4x_clk.common.hw, 701 [CLK_AVS] = &avs_clk.common.hw, 702 [CLK_MBUS] = &mbus_clk.common.hw, 703 [CLK_DSI_SCLK] = &dsi_sclk_clk.common.hw, 704 [CLK_DSI_DPHY] = &dsi_dphy_clk.common.hw, 705 [CLK_DRC] = &drc_clk.common.hw, 706 [CLK_GPU] = &gpu_clk.common.hw, 707 [CLK_ATS] = &ats_clk.common.hw, 708 }, 709 .num = CLK_NUMBER, 710 }; 711 712 static struct ccu_reset_map sun8i_a33_ccu_resets[] = { 713 [RST_USB_PHY0] = { 0x0cc, BIT(0) }, 714 [RST_USB_PHY1] = { 0x0cc, BIT(1) }, 715 [RST_USB_HSIC] = { 0x0cc, BIT(2) }, 716 717 [RST_MBUS] = { 0x0fc, BIT(31) }, 718 719 [RST_BUS_MIPI_DSI] = { 0x2c0, BIT(1) }, 720 [RST_BUS_SS] = { 0x2c0, BIT(5) }, 721 [RST_BUS_DMA] = { 0x2c0, BIT(6) }, 722 [RST_BUS_MMC0] = { 0x2c0, BIT(8) }, 723 [RST_BUS_MMC1] = { 0x2c0, BIT(9) }, 724 [RST_BUS_MMC2] = { 0x2c0, BIT(10) }, 725 [RST_BUS_NAND] = { 0x2c0, BIT(13) }, 726 [RST_BUS_DRAM] = { 0x2c0, BIT(14) }, 727 [RST_BUS_HSTIMER] = { 0x2c0, BIT(19) }, 728 [RST_BUS_SPI0] = { 0x2c0, BIT(20) }, 729 [RST_BUS_SPI1] = { 0x2c0, BIT(21) }, 730 [RST_BUS_OTG] = { 0x2c0, BIT(24) }, 731 [RST_BUS_EHCI] = { 0x2c0, BIT(26) }, 732 [RST_BUS_OHCI] = { 0x2c0, BIT(29) }, 733 734 [RST_BUS_VE] = { 0x2c4, BIT(0) }, 735 [RST_BUS_LCD] = { 0x2c4, BIT(4) }, 736 [RST_BUS_CSI] = { 0x2c4, BIT(8) }, 737 [RST_BUS_DE_BE] = { 0x2c4, BIT(12) }, 738 [RST_BUS_DE_FE] = { 0x2c4, BIT(14) }, 739 [RST_BUS_GPU] = { 0x2c4, BIT(20) }, 740 [RST_BUS_MSGBOX] = { 0x2c4, BIT(21) }, 741 [RST_BUS_SPINLOCK] = { 0x2c4, BIT(22) }, 742 [RST_BUS_DRC] = { 0x2c4, BIT(25) }, 743 [RST_BUS_SAT] = { 0x2c4, BIT(26) }, 744 745 [RST_BUS_LVDS] = { 0x2c8, BIT(0) }, 746 747 [RST_BUS_CODEC] = { 0x2d0, BIT(0) }, 748 [RST_BUS_I2S0] = { 0x2d0, BIT(12) }, 749 [RST_BUS_I2S1] = { 0x2d0, BIT(13) }, 750 751 [RST_BUS_I2C0] = { 0x2d8, BIT(0) }, 752 [RST_BUS_I2C1] = { 0x2d8, BIT(1) }, 753 [RST_BUS_I2C2] = { 0x2d8, BIT(2) }, 754 [RST_BUS_UART0] = { 0x2d8, BIT(16) }, 755 [RST_BUS_UART1] = { 0x2d8, BIT(17) }, 756 [RST_BUS_UART2] = { 0x2d8, BIT(18) }, 757 [RST_BUS_UART3] = { 0x2d8, BIT(19) }, 758 [RST_BUS_UART4] = { 0x2d8, BIT(20) }, 759 }; 760 761 static const struct sunxi_ccu_desc sun8i_a33_ccu_desc = { 762 .ccu_clks = sun8i_a33_ccu_clks, 763 .num_ccu_clks = ARRAY_SIZE(sun8i_a33_ccu_clks), 764 765 .hw_clks = &sun8i_a33_hw_clks, 766 767 .resets = sun8i_a33_ccu_resets, 768 .num_resets = ARRAY_SIZE(sun8i_a33_ccu_resets), 769 }; 770 771 static struct ccu_pll_nb sun8i_a33_pll_cpu_nb = { 772 .common = &pll_cpux_clk.common, 773 /* copy from pll_cpux_clk */ 774 .enable = BIT(31), 775 .lock = BIT(28), 776 }; 777 778 static struct ccu_mux_nb sun8i_a33_cpu_nb = { 779 .common = &cpux_clk.common, 780 .cm = &cpux_clk.mux, 781 .delay_us = 1, /* > 8 clock cycles at 24 MHz */ 782 .bypass_index = 1, /* index of 24 MHz oscillator */ 783 }; 784 785 static void __init sun8i_a33_ccu_setup(struct device_node *node) 786 { 787 void __iomem *reg; 788 u32 val; 789 790 reg = of_io_request_and_map(node, 0, of_node_full_name(node)); 791 if (IS_ERR(reg)) { 792 pr_err("%pOF: Could not map the clock registers\n", node); 793 return; 794 } 795 796 /* Force the PLL-Audio-1x divider to 1 */ 797 val = readl(reg + SUN8I_A33_PLL_AUDIO_REG); 798 val &= ~GENMASK(19, 16); 799 writel(val | (0 << 16), reg + SUN8I_A33_PLL_AUDIO_REG); 800 801 /* Force PLL-MIPI to MIPI mode */ 802 val = readl(reg + SUN8I_A33_PLL_MIPI_REG); 803 val &= ~BIT(16); 804 writel(val, reg + SUN8I_A33_PLL_MIPI_REG); 805 806 sunxi_ccu_probe(node, reg, &sun8i_a33_ccu_desc); 807 808 /* Gate then ungate PLL CPU after any rate changes */ 809 ccu_pll_notifier_register(&sun8i_a33_pll_cpu_nb); 810 811 /* Reparent CPU during PLL CPU rate changes */ 812 ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk, 813 &sun8i_a33_cpu_nb); 814 } 815 CLK_OF_DECLARE(sun8i_a33_ccu, "allwinner,sun8i-a33-ccu", 816 sun8i_a33_ccu_setup); 817