drivers/clk/sunxi-ng/ccu-sun8i-a33.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2016 Maxime Ripard. All rights reserved.
   4  */
   5
   6 #include <linux/clk-provider.h>
   7 #include <linux/io.h>
   8 #include <linux/module.h>
   9 #include <linux/platform_device.h>
  10
  11 #include "ccu_common.h"
  12 #include "ccu_reset.h"
  13
  14 #include "ccu_div.h"
  15 #include "ccu_gate.h"
  16 #include "ccu_mp.h"
  17 #include "ccu_mult.h"
  18 #include "ccu_nk.h"
  19 #include "ccu_nkm.h"
  20 #include "ccu_nkmp.h"
  21 #include "ccu_nm.h"
  22 #include "ccu_phase.h"
  23
  24 #include "ccu-sun8i-a23-a33.h"
  25
  26 static struct ccu_nkmp pll_cpux_clk = {
  27         .enable = BIT(31),
  28         .lock   = BIT(28),
  29
  30         .n      = _SUNXI_CCU_MULT(8, 5),
  31         .k      = _SUNXI_CCU_MULT(4, 2),
  32         .m      = _SUNXI_CCU_DIV(0, 2),
  33         .p      = _SUNXI_CCU_DIV_MAX(16, 2, 4),
  34
  35         .common = {
  36                 .reg            = 0x000,
  37                 .hw.init        = CLK_HW_INIT("pll-cpux", "osc24M",
  38                                               &ccu_nkmp_ops,
  39                                               0),
  40         },
  41 };
  42
  43 /*
  44  * The Audio PLL is supposed to have 4 outputs: 3 fixed factors from
  45  * the base (2x, 4x and 8x), and one variable divider (the one true
  46  * pll audio).
  47  *
  48  * With sigma-delta modulation for fractional-N on the audio PLL,
  49  * we have to use specific dividers. This means the variable divider
  50  * can no longer be used, as the audio codec requests the exact clock
  51  * rates we support through this mechanism. So we now hard code the
  52  * variable divider to 1. This means the clock rates will no longer
  53  * match the clock names.
  54  */
  55 #define SUN8I_A33_PLL_AUDIO_REG 0x008
  56
  57 static struct ccu_sdm_setting pll_audio_sdm_table[] = {
  58         { .rate = 22579200, .pattern = 0xc0010d84, .m = 8, .n = 7 },
  59         { .rate = 24576000, .pattern = 0xc000ac02, .m = 14, .n = 14 },
  60 };
  61
  62 static SUNXI_CCU_NM_WITH_SDM_GATE_LOCK(pll_audio_base_clk, "pll-audio-base",
  63                                        "osc24M", 0x008,
  64                                        8, 7,    /* N */
  65                                        0, 5,    /* M */
  66                                        pll_audio_sdm_table, BIT(24),
  67                                        0x284, BIT(31),
  68                                        BIT(31), /* gate */
  69                                        BIT(28), /* lock */
  70                                        CLK_SET_RATE_UNGATE);
  71
  72 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_video_clk, "pll-video",
  73                                         "osc24M", 0x010,
  74                                         8, 7,           /* N */
  75                                         0, 4,           /* M */
  76                                         BIT(24),        /* frac enable */
  77                                         BIT(25),        /* frac select */
  78                                         270000000,      /* frac rate 0 */
  79                                         297000000,      /* frac rate 1 */
  80                                         BIT(31),        /* gate */
  81                                         BIT(28),        /* lock */
  82                                         CLK_SET_RATE_UNGATE);
  83
  84 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_ve_clk, "pll-ve",
  85                                         "osc24M", 0x018,
  86                                         8, 7,           /* N */
  87                                         0, 4,           /* M */
  88                                         BIT(24),        /* frac enable */
  89                                         BIT(25),        /* frac select */
  90                                         270000000,      /* frac rate 0 */
  91                                         297000000,      /* frac rate 1 */
  92                                         BIT(31),        /* gate */
  93                                         BIT(28),        /* lock */
  94                                         CLK_SET_RATE_UNGATE);
  95
  96 static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_ddr0_clk, "pll-ddr0",
  97                                     "osc24M", 0x020,
  98                                     8, 5,               /* N */
  99                                     4, 2,               /* K */
 100                                     0, 2,               /* M */
 101                                     BIT(31),            /* gate */
 102                                     BIT(28),            /* lock */
 103                                     0);
 104
 105 static SUNXI_CCU_NK_WITH_GATE_LOCK_POSTDIV(pll_periph_clk, "pll-periph",
 106                                            "osc24M", 0x028,
 107                                            8, 5,        /* N */
 108                                            4, 2,        /* K */
 109                                            BIT(31),     /* gate */
 110                                            BIT(28),     /* lock */
 111                                            2,           /* post-div */
 112                                            CLK_SET_RATE_UNGATE);
 113
 114 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_gpu_clk, "pll-gpu",
 115                                         "osc24M", 0x038,
 116                                         8, 7,           /* N */
 117                                         0, 4,           /* M */
 118                                         BIT(24),        /* frac enable */
 119                                         BIT(25),        /* frac select */
 120                                         270000000,      /* frac rate 0 */
 121                                         297000000,      /* frac rate 1 */
 122                                         BIT(31),        /* gate */
 123                                         BIT(28),        /* lock */
 124                                         CLK_SET_RATE_UNGATE);
 125
 126 /*
 127  * The MIPI PLL has 2 modes: "MIPI" and "HDMI".
 128  *
 129  * The MIPI mode is a standard NKM-style clock. The HDMI mode is an
 130  * integer / fractional clock with switchable multipliers and dividers.
 131  * This is not supported here. We hardcode the PLL to MIPI mode.
 132  */
 133 #define SUN8I_A33_PLL_MIPI_REG  0x040
 134 static SUNXI_CCU_NKM_WITH_GATE_LOCK(pll_mipi_clk, "pll-mipi",
 135                                     "pll-video", 0x040,
 136                                     8, 4,               /* N */
 137                                     4, 2,               /* K */
 138                                     0, 4,               /* M */
 139                                     BIT(31) | BIT(23) | BIT(22), /* gate */
 140                                     BIT(28),            /* lock */
 141                                     CLK_SET_RATE_UNGATE);
 142
 143 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_hsic_clk, "pll-hsic",
 144                                         "osc24M", 0x044,
 145                                         8, 7,           /* N */
 146                                         0, 4,           /* M */
 147                                         BIT(24),        /* frac enable */
 148                                         BIT(25),        /* frac select */
 149                                         270000000,      /* frac rate 0 */
 150                                         297000000,      /* frac rate 1 */
 151                                         BIT(31),        /* gate */
 152                                         BIT(28),        /* lock */
 153                                         CLK_SET_RATE_UNGATE);
 154
 155 static SUNXI_CCU_NM_WITH_FRAC_GATE_LOCK(pll_de_clk, "pll-de",
 156                                         "osc24M", 0x048,
 157                                         8, 7,           /* N */
 158                                         0, 4,           /* M */
 159                                         BIT(24),        /* frac enable */
 160                                         BIT(25),        /* frac select */
 161                                         270000000,      /* frac rate 0 */
 162                                         297000000,      /* frac rate 1 */
 163                                         BIT(31),        /* gate */
 164                                         BIT(28),        /* lock */
 165                                         CLK_SET_RATE_UNGATE);
 166
 167 static struct ccu_mult pll_ddr1_clk = {
 168         .enable = BIT(31),
 169         .lock   = BIT(28),
 170         .mult   = _SUNXI_CCU_MULT_OFFSET_MIN_MAX(8, 6, 0, 12, 0),
 171         .common = {
 172                 .reg            = 0x04c,
 173                 .hw.init        = CLK_HW_INIT("pll-ddr1", "osc24M",
 174                                               &ccu_mult_ops,
 175                                               CLK_SET_RATE_UNGATE),
 176         },
 177 };
 178
 179 static const char * const cpux_parents[] = { "osc32k", "osc24M",
 180                                              "pll-cpux" , "pll-cpux" };
 181 static SUNXI_CCU_MUX(cpux_clk, "cpux", cpux_parents,
 182                      0x050, 16, 2, CLK_IS_CRITICAL | CLK_SET_RATE_PARENT);
 183
 184 static SUNXI_CCU_M(axi_clk, "axi", "cpux", 0x050, 0, 2, 0);
 185
 186 static const char * const ahb1_parents[] = { "osc32k", "osc24M",
 187                                              "axi" , "pll-periph" };
 188 static const struct ccu_mux_var_prediv ahb1_predivs[] = {
 189         { .index = 3, .shift = 6, .width = 2 },
 190 };
 191 static struct ccu_div ahb1_clk = {
 192         .div            = _SUNXI_CCU_DIV_FLAGS(4, 2, CLK_DIVIDER_POWER_OF_TWO),
 193
 194         .mux            = {
 195                 .shift  = 12,
 196                 .width  = 2,
 197
 198                 .var_predivs    = ahb1_predivs,
 199                 .n_var_predivs  = ARRAY_SIZE(ahb1_predivs),
 200         },
 201
 202         .common         = {
 203                 .reg            = 0x054,
 204                 .features       = CCU_FEATURE_VARIABLE_PREDIV,
 205                 .hw.init        = CLK_HW_INIT_PARENTS("ahb1",
 206                                                       ahb1_parents,
 207                                                       &ccu_div_ops,
 208                                                       0),
 209         },
 210 };
 211
 212 static struct clk_div_table apb1_div_table[] = {
 213         { .val = 0, .div = 2 },
 214         { .val = 1, .div = 2 },
 215         { .val = 2, .div = 4 },
 216         { .val = 3, .div = 8 },
 217         { /* Sentinel */ },
 218 };
 219 static SUNXI_CCU_DIV_TABLE(apb1_clk, "apb1", "ahb1",
 220                            0x054, 8, 2, apb1_div_table, 0);
 221
 222 static const char * const apb2_parents[] = { "osc32k", "osc24M",
 223                                              "pll-periph" , "pll-periph" };
 224 static SUNXI_CCU_MP_WITH_MUX(apb2_clk, "apb2", apb2_parents, 0x058,
 225                              0, 5,      /* M */
 226                              16, 2,     /* P */
 227                              24, 2,     /* mux */
 228                              0);
 229
 230 static SUNXI_CCU_GATE(bus_mipi_dsi_clk, "bus-mipi-dsi", "ahb1",
 231                       0x060, BIT(1), 0);
 232 static SUNXI_CCU_GATE(bus_ss_clk,       "bus-ss",       "ahb1",
 233                       0x060, BIT(5), 0);
 234 static SUNXI_CCU_GATE(bus_dma_clk,      "bus-dma",      "ahb1",
 235                       0x060, BIT(6), 0);
 236 static SUNXI_CCU_GATE(bus_mmc0_clk,     "bus-mmc0",     "ahb1",
 237                       0x060, BIT(8), 0);
 238 static SUNXI_CCU_GATE(bus_mmc1_clk,     "bus-mmc1",     "ahb1",
 239                       0x060, BIT(9), 0);
 240 static SUNXI_CCU_GATE(bus_mmc2_clk,     "bus-mmc2",     "ahb1",
 241                       0x060, BIT(10), 0);
 242 static SUNXI_CCU_GATE(bus_nand_clk,     "bus-nand",     "ahb1",
 243                       0x060, BIT(13), 0);
 244 static SUNXI_CCU_GATE(bus_dram_clk,     "bus-dram",     "ahb1",
 245                       0x060, BIT(14), 0);
 246 static SUNXI_CCU_GATE(bus_hstimer_clk,  "bus-hstimer",  "ahb1",
 247                       0x060, BIT(19), 0);
 248 static SUNXI_CCU_GATE(bus_spi0_clk,     "bus-spi0",     "ahb1",
 249                       0x060, BIT(20), 0);
 250 static SUNXI_CCU_GATE(bus_spi1_clk,     "bus-spi1",     "ahb1",
 251                       0x060, BIT(21), 0);
 252 static SUNXI_CCU_GATE(bus_otg_clk,      "bus-otg",      "ahb1",
 253                       0x060, BIT(24), 0);
 254 static SUNXI_CCU_GATE(bus_ehci_clk,     "bus-ehci",     "ahb1",
 255                       0x060, BIT(26), 0);
 256 static SUNXI_CCU_GATE(bus_ohci_clk,     "bus-ohci",     "ahb1",
 257                       0x060, BIT(29), 0);
 258
 259 static SUNXI_CCU_GATE(bus_ve_clk,       "bus-ve",       "ahb1",
 260                       0x064, BIT(0), 0);
 261 static SUNXI_CCU_GATE(bus_lcd_clk,      "bus-lcd",      "ahb1",
 262                       0x064, BIT(4), 0);
 263 static SUNXI_CCU_GATE(bus_csi_clk,      "bus-csi",      "ahb1",
 264                       0x064, BIT(8), 0);
 265 static SUNXI_CCU_GATE(bus_de_be_clk,    "bus-de-be",    "ahb1",
 266                       0x064, BIT(12), 0);
 267 static SUNXI_CCU_GATE(bus_de_fe_clk,    "bus-de-fe",    "ahb1",
 268                       0x064, BIT(14), 0);
 269 static SUNXI_CCU_GATE(bus_gpu_clk,      "bus-gpu",      "ahb1",
 270                       0x064, BIT(20), 0);
 271 static SUNXI_CCU_GATE(bus_msgbox_clk,   "bus-msgbox",   "ahb1",
 272                       0x064, BIT(21), 0);
 273 static SUNXI_CCU_GATE(bus_spinlock_clk, "bus-spinlock", "ahb1",
 274                       0x064, BIT(22), 0);
 275 static SUNXI_CCU_GATE(bus_drc_clk,      "bus-drc",      "ahb1",
 276                       0x064, BIT(25), 0);
 277 static SUNXI_CCU_GATE(bus_sat_clk,      "bus-sat",      "ahb1",
 278                       0x064, BIT(26), 0);
 279
 280 static SUNXI_CCU_GATE(bus_codec_clk,    "bus-codec",    "apb1",
 281                       0x068, BIT(0), 0);
 282 static SUNXI_CCU_GATE(bus_pio_clk,      "bus-pio",      "apb1",
 283                       0x068, BIT(5), 0);
 284 static SUNXI_CCU_GATE(bus_i2s0_clk,     "bus-i2s0",     "apb1",
 285                       0x068, BIT(12), 0);
 286 static SUNXI_CCU_GATE(bus_i2s1_clk,     "bus-i2s1",     "apb1",
 287                       0x068, BIT(13), 0);
 288
 289 static SUNXI_CCU_GATE(bus_i2c0_clk,     "bus-i2c0",     "apb2",
 290                       0x06c, BIT(0), 0);
 291 static SUNXI_CCU_GATE(bus_i2c1_clk,     "bus-i2c1",     "apb2",
 292                       0x06c, BIT(1), 0);
 293 static SUNXI_CCU_GATE(bus_i2c2_clk,     "bus-i2c2",     "apb2",
 294                       0x06c, BIT(2), 0);
 295 static SUNXI_CCU_GATE(bus_uart0_clk,    "bus-uart0",    "apb2",
 296                       0x06c, BIT(16), 0);
 297 static SUNXI_CCU_GATE(bus_uart1_clk,    "bus-uart1",    "apb2",
 298                       0x06c, BIT(17), 0);
 299 static SUNXI_CCU_GATE(bus_uart2_clk,    "bus-uart2",    "apb2",
 300                       0x06c, BIT(18), 0);
 301 static SUNXI_CCU_GATE(bus_uart3_clk,    "bus-uart3",    "apb2",
 302                       0x06c, BIT(19), 0);
 303 static SUNXI_CCU_GATE(bus_uart4_clk,    "bus-uart4",    "apb2",
 304                       0x06c, BIT(20), 0);
 305
 306 static const char * const mod0_default_parents[] = { "osc24M", "pll-periph" };
 307 static SUNXI_CCU_MP_WITH_MUX_GATE(nand_clk, "nand", mod0_default_parents, 0x080,
 308                                   0, 4,         /* M */
 309                                   16, 2,        /* P */
 310                                   24, 2,        /* mux */
 311                                   BIT(31),      /* gate */
 312                                   0);
 313
 314 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc0_clk, "mmc0", mod0_default_parents, 0x088,
 315                                   0, 4,         /* M */
 316                                   16, 2,        /* P */
 317                                   24, 2,        /* mux */
 318                                   BIT(31),      /* gate */
 319                                   0);
 320
 321 static SUNXI_CCU_PHASE(mmc0_sample_clk, "mmc0_sample", "mmc0",
 322                        0x088, 20, 3, 0);
 323 static SUNXI_CCU_PHASE(mmc0_output_clk, "mmc0_output", "mmc0",
 324                        0x088, 8, 3, 0);
 325
 326 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc1_clk, "mmc1", mod0_default_parents, 0x08c,
 327                                   0, 4,         /* M */
 328                                   16, 2,        /* P */
 329                                   24, 2,        /* mux */
 330                                   BIT(31),      /* gate */
 331                                   0);
 332
 333 static SUNXI_CCU_PHASE(mmc1_sample_clk, "mmc1_sample", "mmc1",
 334                        0x08c, 20, 3, 0);
 335 static SUNXI_CCU_PHASE(mmc1_output_clk, "mmc1_output", "mmc1",
 336                        0x08c, 8, 3, 0);
 337
 338 static SUNXI_CCU_MP_WITH_MUX_GATE(mmc2_clk, "mmc2", mod0_default_parents, 0x090,
 339                                   0, 4,         /* M */
 340                                   16, 2,        /* P */
 341                                   24, 2,        /* mux */
 342                                   BIT(31),      /* gate */
 343                                   0);
 344
 345 static SUNXI_CCU_PHASE(mmc2_sample_clk, "mmc2_sample", "mmc2",
 346                        0x090, 20, 3, 0);
 347 static SUNXI_CCU_PHASE(mmc2_output_clk, "mmc2_output", "mmc2",
 348                        0x090, 8, 3, 0);
 349
 350 static SUNXI_CCU_MP_WITH_MUX_GATE(ss_clk, "ss", mod0_default_parents, 0x09c,
 351                                   0, 4,         /* M */
 352                                   16, 2,        /* P */
 353                                   24, 2,        /* mux */
 354                                   BIT(31),      /* gate */
 355                                   0);
 356
 357 static SUNXI_CCU_MP_WITH_MUX_GATE(spi0_clk, "spi0", mod0_default_parents, 0x0a0,
 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(spi1_clk, "spi1", mod0_default_parents, 0x0a4,
 365                                   0, 4,         /* M */
 366                                   16, 2,        /* P */
 367                                   24, 2,        /* mux */
 368                                   BIT(31),      /* gate */
 369                                   0);
 370
 371 static const char * const i2s_parents[] = { "pll-audio-8x", "pll-audio-4x",
 372                                             "pll-audio-2x", "pll-audio" };
 373 static SUNXI_CCU_MUX_WITH_GATE(i2s0_clk, "i2s0", i2s_parents,
 374                                0x0b0, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 375
 376 static SUNXI_CCU_MUX_WITH_GATE(i2s1_clk, "i2s1", i2s_parents,
 377                                0x0b4, 16, 2, BIT(31), CLK_SET_RATE_PARENT);
 378
 379 /* TODO: the parent for most of the USB clocks is not known */
 380 static SUNXI_CCU_GATE(usb_phy0_clk,     "usb-phy0",     "osc24M",
 381                       0x0cc, BIT(8), 0);
 382 static SUNXI_CCU_GATE(usb_phy1_clk,     "usb-phy1",     "osc24M",
 383                       0x0cc, BIT(9), 0);
 384 static SUNXI_CCU_GATE(usb_hsic_clk,     "usb-hsic",     "pll-hsic",
 385                       0x0cc, BIT(10), 0);
 386 static SUNXI_CCU_GATE(usb_hsic_12M_clk, "usb-hsic-12M", "osc24M",
 387                       0x0cc, BIT(11), 0);
 388 static SUNXI_CCU_GATE(usb_ohci_clk,     "usb-ohci",     "osc24M",
 389                       0x0cc, BIT(16), 0);
 390
 391 static SUNXI_CCU_M(dram_clk, "dram", "pll-ddr",
 392                    0x0f4, 0, 4, CLK_IS_CRITICAL);
 393
 394 static const char * const pll_ddr_parents[] = { "pll-ddr0", "pll-ddr1" };
 395 static SUNXI_CCU_MUX(pll_ddr_clk, "pll-ddr", pll_ddr_parents,
 396                      0x0f8, 16, 1, 0);
 397
 398 static SUNXI_CCU_GATE(dram_ve_clk,      "dram-ve",      "dram",
 399                       0x100, BIT(0), 0);
 400 static SUNXI_CCU_GATE(dram_csi_clk,     "dram-csi",     "dram",
 401                       0x100, BIT(1), 0);
 402 static SUNXI_CCU_GATE(dram_drc_clk,     "dram-drc",     "dram",
 403                       0x100, BIT(16), 0);
 404 static SUNXI_CCU_GATE(dram_de_fe_clk,   "dram-de-fe",   "dram",
 405                       0x100, BIT(24), 0);
 406 static SUNXI_CCU_GATE(dram_de_be_clk,   "dram-de-be",   "dram",
 407                       0x100, BIT(26), 0);
 408
 409 static const char * const de_parents[] = { "pll-video", "pll-periph-2x",
 410                                            "pll-gpu", "pll-de" };
 411 static const u8 de_table[] = { 0, 2, 3, 5 };
 412 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_be_clk, "de-be",
 413                                        de_parents, de_table,
 414                                        0x104, 0, 4, 24, 3, BIT(31), 0);
 415
 416 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(de_fe_clk, "de-fe",
 417                                        de_parents, de_table,
 418                                        0x10c, 0, 4, 24, 3, BIT(31), 0);
 419
 420 static const char * const lcd_ch0_parents[] = { "pll-video", "pll-video-2x",
 421                                                 "pll-mipi" };
 422 static const u8 lcd_ch0_table[] = { 0, 2, 4 };
 423 static SUNXI_CCU_MUX_TABLE_WITH_GATE(lcd_ch0_clk, "lcd-ch0",
 424                                      lcd_ch0_parents, lcd_ch0_table,
 425                                      0x118, 24, 3, BIT(31),
 426                                      CLK_SET_RATE_PARENT);
 427
 428 static const char * const lcd_ch1_parents[] = { "pll-video", "pll-video-2x" };
 429 static const u8 lcd_ch1_table[] = { 0, 2 };
 430 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(lcd_ch1_clk, "lcd-ch1",
 431                                        lcd_ch1_parents, lcd_ch1_table,
 432                                        0x12c, 0, 4, 24, 2, BIT(31), 0);
 433
 434 static const char * const csi_sclk_parents[] = { "pll-video", "pll-de",
 435                                                  "pll-mipi", "pll-ve" };
 436 static const u8 csi_sclk_table[] = { 0, 3, 4, 5 };
 437 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_sclk_clk, "csi-sclk",
 438                                        csi_sclk_parents, csi_sclk_table,
 439                                        0x134, 16, 4, 24, 3, BIT(31), 0);
 440
 441 static const char * const csi_mclk_parents[] = { "pll-video", "pll-de",
 442                                                  "osc24M" };
 443 static const u8 csi_mclk_table[] = { 0, 3, 5 };
 444 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(csi_mclk_clk, "csi-mclk",
 445                                        csi_mclk_parents, csi_mclk_table,
 446                                        0x134, 0, 5, 8, 3, BIT(15), 0);
 447
 448 static SUNXI_CCU_M_WITH_GATE(ve_clk, "ve", "pll-ve",
 449                              0x13c, 16, 3, BIT(31), CLK_SET_RATE_PARENT);
 450
 451 static SUNXI_CCU_GATE(ac_dig_clk,       "ac-dig",       "pll-audio",
 452                       0x140, BIT(31), CLK_SET_RATE_PARENT);
 453 static SUNXI_CCU_GATE(ac_dig_4x_clk,    "ac-dig-4x",    "pll-audio-4x",
 454                       0x140, BIT(30), CLK_SET_RATE_PARENT);
 455 static SUNXI_CCU_GATE(avs_clk,          "avs",          "osc24M",
 456                       0x144, BIT(31), 0);
 457
 458 static const char * const mbus_parents[] = { "osc24M", "pll-periph-2x",
 459                                              "pll-ddr0", "pll-ddr1" };
 460 static SUNXI_CCU_M_WITH_MUX_GATE(mbus_clk, "mbus", mbus_parents,
 461                                  0x15c, 0, 3, 24, 2, BIT(31), CLK_IS_CRITICAL);
 462
 463 static const char * const dsi_sclk_parents[] = { "pll-video", "pll-video-2x" };
 464 static const u8 dsi_sclk_table[] = { 0, 2 };
 465 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(dsi_sclk_clk, "dsi-sclk",
 466                                        dsi_sclk_parents, dsi_sclk_table,
 467                                        0x168, 16, 4, 24, 2, BIT(31), 0);
 468
 469 static const char * const dsi_dphy_parents[] = { "pll-video", "pll-periph" };
 470 static const u8 dsi_dphy_table[] = { 0, 2 };
 471 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(dsi_dphy_clk, "dsi-dphy",
 472                                        dsi_dphy_parents, dsi_dphy_table,
 473                                        0x168, 0, 4, 8, 2, BIT(15), 0);
 474
 475 static SUNXI_CCU_M_WITH_MUX_TABLE_GATE(drc_clk, "drc",
 476                                        de_parents, de_table,
 477                                        0x180, 0, 4, 24, 3, BIT(31), 0);
 478
 479 static SUNXI_CCU_M_WITH_GATE(gpu_clk, "gpu", "pll-gpu",
 480                              0x1a0, 0, 3, BIT(31), CLK_SET_RATE_PARENT);
 481
 482 static const char * const ats_parents[] = { "osc24M", "pll-periph" };
 483 static SUNXI_CCU_M_WITH_MUX_GATE(ats_clk, "ats", ats_parents,
 484                                  0x1b0, 0, 3, 24, 2, BIT(31), 0);
 485
 486 static struct ccu_common *sun8i_a33_ccu_clks[] = {
 487         &pll_cpux_clk.common,
 488         &pll_audio_base_clk.common,
 489         &pll_video_clk.common,
 490         &pll_ve_clk.common,
 491         &pll_ddr0_clk.common,
 492         &pll_periph_clk.common,
 493         &pll_gpu_clk.common,
 494         &pll_mipi_clk.common,
 495         &pll_hsic_clk.common,
 496         &pll_de_clk.common,
 497         &pll_ddr1_clk.common,
 498         &pll_ddr_clk.common,
 499         &cpux_clk.common,
 500         &axi_clk.common,
 501         &ahb1_clk.common,
 502         &apb1_clk.common,
 503         &apb2_clk.common,
 504         &bus_mipi_dsi_clk.common,
 505         &bus_ss_clk.common,
 506         &bus_dma_clk.common,
 507         &bus_mmc0_clk.common,
 508         &bus_mmc1_clk.common,
 509         &bus_mmc2_clk.common,
 510         &bus_nand_clk.common,
 511         &bus_dram_clk.common,
 512         &bus_hstimer_clk.common,
 513         &bus_spi0_clk.common,
 514         &bus_spi1_clk.common,
 515         &bus_otg_clk.common,
 516         &bus_ehci_clk.common,
 517         &bus_ohci_clk.common,
 518         &bus_ve_clk.common,
 519         &bus_lcd_clk.common,
 520         &bus_csi_clk.common,
 521         &bus_de_fe_clk.common,
 522         &bus_de_be_clk.common,
 523         &bus_gpu_clk.common,
 524         &bus_msgbox_clk.common,
 525         &bus_spinlock_clk.common,
 526         &bus_drc_clk.common,
 527         &bus_sat_clk.common,
 528         &bus_codec_clk.common,
 529         &bus_pio_clk.common,
 530         &bus_i2s0_clk.common,
 531         &bus_i2s1_clk.common,
 532         &bus_i2c0_clk.common,
 533         &bus_i2c1_clk.common,
 534         &bus_i2c2_clk.common,
 535         &bus_uart0_clk.common,
 536         &bus_uart1_clk.common,
 537         &bus_uart2_clk.common,
 538         &bus_uart3_clk.common,
 539         &bus_uart4_clk.common,
 540         &nand_clk.common,
 541         &mmc0_clk.common,
 542         &mmc0_sample_clk.common,
 543         &mmc0_output_clk.common,
 544         &mmc1_clk.common,
 545         &mmc1_sample_clk.common,
 546         &mmc1_output_clk.common,
 547         &mmc2_clk.common,
 548         &mmc2_sample_clk.common,
 549         &mmc2_output_clk.common,
 550         &ss_clk.common,
 551         &spi0_clk.common,
 552         &spi1_clk.common,
 553         &i2s0_clk.common,
 554         &i2s1_clk.common,
 555         &usb_phy0_clk.common,
 556         &usb_phy1_clk.common,
 557         &usb_hsic_clk.common,
 558         &usb_hsic_12M_clk.common,
 559         &usb_ohci_clk.common,
 560         &dram_clk.common,
 561         &dram_ve_clk.common,
 562         &dram_csi_clk.common,
 563         &dram_drc_clk.common,
 564         &dram_de_fe_clk.common,
 565         &dram_de_be_clk.common,
 566         &de_be_clk.common,
 567         &de_fe_clk.common,
 568         &lcd_ch0_clk.common,
 569         &lcd_ch1_clk.common,
 570         &csi_sclk_clk.common,
 571         &csi_mclk_clk.common,
 572         &ve_clk.common,
 573         &ac_dig_clk.common,
 574         &ac_dig_4x_clk.common,
 575         &avs_clk.common,
 576         &mbus_clk.common,
 577         &dsi_sclk_clk.common,
 578         &dsi_dphy_clk.common,
 579         &drc_clk.common,
 580         &gpu_clk.common,
 581         &ats_clk.common,
 582 };
 583
 584 static const struct clk_hw *clk_parent_pll_audio[] = {
 585         &pll_audio_base_clk.common.hw
 586 };
 587
 588 /* We hardcode the divider to 1 for now */
 589 static CLK_FIXED_FACTOR_HWS(pll_audio_clk, "pll-audio",
 590                             clk_parent_pll_audio,
 591                             1, 1, CLK_SET_RATE_PARENT);
 592 static CLK_FIXED_FACTOR_HWS(pll_audio_2x_clk, "pll-audio-2x",
 593                             clk_parent_pll_audio,
 594                             2, 1, CLK_SET_RATE_PARENT);
 595 static CLK_FIXED_FACTOR_HWS(pll_audio_4x_clk, "pll-audio-4x",
 596                             clk_parent_pll_audio,
 597                             1, 1, CLK_SET_RATE_PARENT);
 598 static CLK_FIXED_FACTOR_HWS(pll_audio_8x_clk, "pll-audio-8x",
 599                             clk_parent_pll_audio,
 600                             1, 2, CLK_SET_RATE_PARENT);
 601 static CLK_FIXED_FACTOR_HW(pll_periph_2x_clk, "pll-periph-2x",
 602                            &pll_periph_clk.common.hw,
 603                            1, 2, 0);
 604 static CLK_FIXED_FACTOR_HW(pll_video_2x_clk, "pll-video-2x",
 605                            &pll_video_clk.common.hw,
 606                            1, 2, 0);
 607
 608 static struct clk_hw_onecell_data sun8i_a33_hw_clks = {
 609         .hws    = {
 610                 [CLK_PLL_CPUX]          = &pll_cpux_clk.common.hw,
 611                 [CLK_PLL_AUDIO_BASE]    = &pll_audio_base_clk.common.hw,
 612                 [CLK_PLL_AUDIO]         = &pll_audio_clk.hw,
 613                 [CLK_PLL_AUDIO_2X]      = &pll_audio_2x_clk.hw,
 614                 [CLK_PLL_AUDIO_4X]      = &pll_audio_4x_clk.hw,
 615                 [CLK_PLL_AUDIO_8X]      = &pll_audio_8x_clk.hw,
 616                 [CLK_PLL_VIDEO]         = &pll_video_clk.common.hw,
 617                 [CLK_PLL_VIDEO_2X]      = &pll_video_2x_clk.hw,
 618                 [CLK_PLL_VE]            = &pll_ve_clk.common.hw,
 619                 [CLK_PLL_DDR0]          = &pll_ddr0_clk.common.hw,
 620                 [CLK_PLL_PERIPH]        = &pll_periph_clk.common.hw,
 621                 [CLK_PLL_PERIPH_2X]     = &pll_periph_2x_clk.hw,
 622                 [CLK_PLL_GPU]           = &pll_gpu_clk.common.hw,
 623                 [CLK_PLL_MIPI]          = &pll_mipi_clk.common.hw,
 624                 [CLK_PLL_HSIC]          = &pll_hsic_clk.common.hw,
 625                 [CLK_PLL_DE]            = &pll_de_clk.common.hw,
 626                 [CLK_PLL_DDR1]          = &pll_ddr1_clk.common.hw,
 627                 [CLK_PLL_DDR]           = &pll_ddr_clk.common.hw,
 628                 [CLK_CPUX]              = &cpux_clk.common.hw,
 629                 [CLK_AXI]               = &axi_clk.common.hw,
 630                 [CLK_AHB1]              = &ahb1_clk.common.hw,
 631                 [CLK_APB1]              = &apb1_clk.common.hw,
 632                 [CLK_APB2]              = &apb2_clk.common.hw,
 633                 [CLK_BUS_MIPI_DSI]      = &bus_mipi_dsi_clk.common.hw,
 634                 [CLK_BUS_SS]            = &bus_ss_clk.common.hw,
 635                 [CLK_BUS_DMA]           = &bus_dma_clk.common.hw,
 636                 [CLK_BUS_MMC0]          = &bus_mmc0_clk.common.hw,
 637                 [CLK_BUS_MMC1]          = &bus_mmc1_clk.common.hw,
 638                 [CLK_BUS_MMC2]          = &bus_mmc2_clk.common.hw,
 639                 [CLK_BUS_NAND]          = &bus_nand_clk.common.hw,
 640                 [CLK_BUS_DRAM]          = &bus_dram_clk.common.hw,
 641                 [CLK_BUS_HSTIMER]       = &bus_hstimer_clk.common.hw,
 642                 [CLK_BUS_SPI0]          = &bus_spi0_clk.common.hw,
 643                 [CLK_BUS_SPI1]          = &bus_spi1_clk.common.hw,
 644                 [CLK_BUS_OTG]           = &bus_otg_clk.common.hw,
 645                 [CLK_BUS_EHCI]          = &bus_ehci_clk.common.hw,
 646                 [CLK_BUS_OHCI]          = &bus_ohci_clk.common.hw,
 647                 [CLK_BUS_VE]            = &bus_ve_clk.common.hw,
 648                 [CLK_BUS_LCD]           = &bus_lcd_clk.common.hw,
 649                 [CLK_BUS_CSI]           = &bus_csi_clk.common.hw,
 650                 [CLK_BUS_DE_BE]         = &bus_de_be_clk.common.hw,
 651                 [CLK_BUS_DE_FE]         = &bus_de_fe_clk.common.hw,
 652                 [CLK_BUS_GPU]           = &bus_gpu_clk.common.hw,
 653                 [CLK_BUS_MSGBOX]        = &bus_msgbox_clk.common.hw,
 654                 [CLK_BUS_SPINLOCK]      = &bus_spinlock_clk.common.hw,
 655                 [CLK_BUS_DRC]           = &bus_drc_clk.common.hw,
 656                 [CLK_BUS_SAT]           = &bus_sat_clk.common.hw,
 657                 [CLK_BUS_CODEC]         = &bus_codec_clk.common.hw,
 658                 [CLK_BUS_PIO]           = &bus_pio_clk.common.hw,
 659                 [CLK_BUS_I2S0]          = &bus_i2s0_clk.common.hw,
 660                 [CLK_BUS_I2S1]          = &bus_i2s1_clk.common.hw,
 661                 [CLK_BUS_I2C0]          = &bus_i2c0_clk.common.hw,
 662                 [CLK_BUS_I2C1]          = &bus_i2c1_clk.common.hw,
 663                 [CLK_BUS_I2C2]          = &bus_i2c2_clk.common.hw,
 664                 [CLK_BUS_UART0]         = &bus_uart0_clk.common.hw,
 665                 [CLK_BUS_UART1]         = &bus_uart1_clk.common.hw,
 666                 [CLK_BUS_UART2]         = &bus_uart2_clk.common.hw,
 667                 [CLK_BUS_UART3]         = &bus_uart3_clk.common.hw,
 668                 [CLK_BUS_UART4]         = &bus_uart4_clk.common.hw,
 669                 [CLK_NAND]              = &nand_clk.common.hw,
 670                 [CLK_MMC0]              = &mmc0_clk.common.hw,
 671                 [CLK_MMC0_SAMPLE]       = &mmc0_sample_clk.common.hw,
 672                 [CLK_MMC0_OUTPUT]       = &mmc0_output_clk.common.hw,
 673                 [CLK_MMC1]              = &mmc1_clk.common.hw,
 674                 [CLK_MMC1_SAMPLE]       = &mmc1_sample_clk.common.hw,
 675                 [CLK_MMC1_OUTPUT]       = &mmc1_output_clk.common.hw,
 676                 [CLK_MMC2]              = &mmc2_clk.common.hw,
 677                 [CLK_MMC2_SAMPLE]       = &mmc2_sample_clk.common.hw,
 678                 [CLK_MMC2_OUTPUT]       = &mmc2_output_clk.common.hw,
 679                 [CLK_SS]                = &ss_clk.common.hw,
 680                 [CLK_SPI0]              = &spi0_clk.common.hw,
 681                 [CLK_SPI1]              = &spi1_clk.common.hw,
 682                 [CLK_I2S0]              = &i2s0_clk.common.hw,
 683                 [CLK_I2S1]              = &i2s1_clk.common.hw,
 684                 [CLK_USB_PHY0]          = &usb_phy0_clk.common.hw,
 685                 [CLK_USB_PHY1]          = &usb_phy1_clk.common.hw,
 686                 [CLK_USB_HSIC]          = &usb_hsic_clk.common.hw,
 687                 [CLK_USB_HSIC_12M]      = &usb_hsic_12M_clk.common.hw,
 688                 [CLK_USB_OHCI]          = &usb_ohci_clk.common.hw,
 689                 [CLK_DRAM]              = &dram_clk.common.hw,
 690                 [CLK_DRAM_VE]           = &dram_ve_clk.common.hw,
 691                 [CLK_DRAM_CSI]          = &dram_csi_clk.common.hw,
 692                 [CLK_DRAM_DRC]          = &dram_drc_clk.common.hw,
 693                 [CLK_DRAM_DE_FE]        = &dram_de_fe_clk.common.hw,
 694                 [CLK_DRAM_DE_BE]        = &dram_de_be_clk.common.hw,
 695                 [CLK_DE_BE]             = &de_be_clk.common.hw,
 696                 [CLK_DE_FE]             = &de_fe_clk.common.hw,
 697                 [CLK_LCD_CH0]           = &lcd_ch0_clk.common.hw,
 698                 [CLK_LCD_CH1]           = &lcd_ch1_clk.common.hw,
 699                 [CLK_CSI_SCLK]          = &csi_sclk_clk.common.hw,
 700                 [CLK_CSI_MCLK]          = &csi_mclk_clk.common.hw,
 701                 [CLK_VE]                = &ve_clk.common.hw,
 702                 [CLK_AC_DIG]            = &ac_dig_clk.common.hw,
 703                 [CLK_AC_DIG_4X]         = &ac_dig_4x_clk.common.hw,
 704                 [CLK_AVS]               = &avs_clk.common.hw,
 705                 [CLK_MBUS]              = &mbus_clk.common.hw,
 706                 [CLK_DSI_SCLK]          = &dsi_sclk_clk.common.hw,
 707                 [CLK_DSI_DPHY]          = &dsi_dphy_clk.common.hw,
 708                 [CLK_DRC]               = &drc_clk.common.hw,
 709                 [CLK_GPU]               = &gpu_clk.common.hw,
 710                 [CLK_ATS]               = &ats_clk.common.hw,
 711         },
 712         .num    = CLK_NUMBER,
 713 };
 714
 715 static struct ccu_reset_map sun8i_a33_ccu_resets[] = {
 716         [RST_USB_PHY0]          =  { 0x0cc, BIT(0) },
 717         [RST_USB_PHY1]          =  { 0x0cc, BIT(1) },
 718         [RST_USB_HSIC]          =  { 0x0cc, BIT(2) },
 719
 720         [RST_MBUS]              =  { 0x0fc, BIT(31) },
 721
 722         [RST_BUS_MIPI_DSI]      =  { 0x2c0, BIT(1) },
 723         [RST_BUS_SS]            =  { 0x2c0, BIT(5) },
 724         [RST_BUS_DMA]           =  { 0x2c0, BIT(6) },
 725         [RST_BUS_MMC0]          =  { 0x2c0, BIT(8) },
 726         [RST_BUS_MMC1]          =  { 0x2c0, BIT(9) },
 727         [RST_BUS_MMC2]          =  { 0x2c0, BIT(10) },
 728         [RST_BUS_NAND]          =  { 0x2c0, BIT(13) },
 729         [RST_BUS_DRAM]          =  { 0x2c0, BIT(14) },
 730         [RST_BUS_HSTIMER]       =  { 0x2c0, BIT(19) },
 731         [RST_BUS_SPI0]          =  { 0x2c0, BIT(20) },
 732         [RST_BUS_SPI1]          =  { 0x2c0, BIT(21) },
 733         [RST_BUS_OTG]           =  { 0x2c0, BIT(24) },
 734         [RST_BUS_EHCI]          =  { 0x2c0, BIT(26) },
 735         [RST_BUS_OHCI]          =  { 0x2c0, BIT(29) },
 736
 737         [RST_BUS_VE]            =  { 0x2c4, BIT(0) },
 738         [RST_BUS_LCD]           =  { 0x2c4, BIT(4) },
 739         [RST_BUS_CSI]           =  { 0x2c4, BIT(8) },
 740         [RST_BUS_DE_BE]         =  { 0x2c4, BIT(12) },
 741         [RST_BUS_DE_FE]         =  { 0x2c4, BIT(14) },
 742         [RST_BUS_GPU]           =  { 0x2c4, BIT(20) },
 743         [RST_BUS_MSGBOX]        =  { 0x2c4, BIT(21) },
 744         [RST_BUS_SPINLOCK]      =  { 0x2c4, BIT(22) },
 745         [RST_BUS_DRC]           =  { 0x2c4, BIT(25) },
 746         [RST_BUS_SAT]           =  { 0x2c4, BIT(26) },
 747
 748         [RST_BUS_LVDS]          =  { 0x2c8, BIT(0) },
 749
 750         [RST_BUS_CODEC]         =  { 0x2d0, BIT(0) },
 751         [RST_BUS_I2S0]          =  { 0x2d0, BIT(12) },
 752         [RST_BUS_I2S1]          =  { 0x2d0, BIT(13) },
 753
 754         [RST_BUS_I2C0]          =  { 0x2d8, BIT(0) },
 755         [RST_BUS_I2C1]          =  { 0x2d8, BIT(1) },
 756         [RST_BUS_I2C2]          =  { 0x2d8, BIT(2) },
 757         [RST_BUS_UART0]         =  { 0x2d8, BIT(16) },
 758         [RST_BUS_UART1]         =  { 0x2d8, BIT(17) },
 759         [RST_BUS_UART2]         =  { 0x2d8, BIT(18) },
 760         [RST_BUS_UART3]         =  { 0x2d8, BIT(19) },
 761         [RST_BUS_UART4]         =  { 0x2d8, BIT(20) },
 762 };
 763
 764 static const struct sunxi_ccu_desc sun8i_a33_ccu_desc = {
 765         .ccu_clks       = sun8i_a33_ccu_clks,
 766         .num_ccu_clks   = ARRAY_SIZE(sun8i_a33_ccu_clks),
 767
 768         .hw_clks        = &sun8i_a33_hw_clks,
 769
 770         .resets         = sun8i_a33_ccu_resets,
 771         .num_resets     = ARRAY_SIZE(sun8i_a33_ccu_resets),
 772 };
 773
 774 static struct ccu_pll_nb sun8i_a33_pll_cpu_nb = {
 775         .common = &pll_cpux_clk.common,
 776         /* copy from pll_cpux_clk */
 777         .enable = BIT(31),
 778         .lock   = BIT(28),
 779 };
 780
 781 static struct ccu_mux_nb sun8i_a33_cpu_nb = {
 782         .common         = &cpux_clk.common,
 783         .cm             = &cpux_clk.mux,
 784         .delay_us       = 1, /* > 8 clock cycles at 24 MHz */
 785         .bypass_index   = 1, /* index of 24 MHz oscillator */
 786 };
 787
 788 static int sun8i_a33_ccu_probe(struct platform_device *pdev)
 789 {
 790         void __iomem *reg;
 791         int ret;
 792         u32 val;
 793
 794         reg = devm_platform_ioremap_resource(pdev, 0);
 795         if (IS_ERR(reg))
 796                 return PTR_ERR(reg);
 797
 798         /* Force the PLL-Audio-1x divider to 1 */
 799         val = readl(reg + SUN8I_A33_PLL_AUDIO_REG);
 800         val &= ~GENMASK(19, 16);
 801         writel(val | (0 << 16), reg + SUN8I_A33_PLL_AUDIO_REG);
 802
 803         /* Force PLL-MIPI to MIPI mode */
 804         val = readl(reg + SUN8I_A33_PLL_MIPI_REG);
 805         val &= ~BIT(16);
 806         writel(val, reg + SUN8I_A33_PLL_MIPI_REG);
 807
 808         ret = devm_sunxi_ccu_probe(&pdev->dev, reg, &sun8i_a33_ccu_desc);
 809         if (ret)
 810                 return ret;
 811
 812         /* Gate then ungate PLL CPU after any rate changes */
 813         ccu_pll_notifier_register(&sun8i_a33_pll_cpu_nb);
 814
 815         /* Reparent CPU during PLL CPU rate changes */
 816         ccu_mux_notifier_register(pll_cpux_clk.common.hw.clk,
 817                                   &sun8i_a33_cpu_nb);
 818
 819         return 0;
 820 }
 821
 822 static const struct of_device_id sun8i_a33_ccu_ids[] = {
 823         { .compatible = "allwinner,sun8i-a33-ccu" },
 824         { }
 825 };
 826
 827 static struct platform_driver sun8i_a33_ccu_driver = {
 828         .probe  = sun8i_a33_ccu_probe,
 829         .driver = {
 830                 .name                   = "sun8i-a33-ccu",
 831                 .suppress_bind_attrs    = true,
 832                 .of_match_table         = sun8i_a33_ccu_ids,
 833         },
 834 };
 835 module_platform_driver(sun8i_a33_ccu_driver);
 836
 837 MODULE_IMPORT_NS(SUNXI_CCU);
 838 MODULE_LICENSE("GPL");