drivers/clk/berlin/bg2.c

   1 /*
   2  * Copyright (c) 2014 Marvell Technology Group Ltd.
   3  *
   4  * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
   5  * Alexandre Belloni <alexandre.belloni@free-electrons.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms and conditions of the GNU General Public License,
   9  * version 2, as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <linux/clk.h>
  21 #include <linux/clk-provider.h>
  22 #include <linux/kernel.h>
  23 #include <linux/of.h>
  24 #include <linux/of_address.h>
  25 #include <linux/slab.h>
  26
  27 #include <dt-bindings/clock/berlin2.h>
  28
  29 #include "berlin2-avpll.h"
  30 #include "berlin2-div.h"
  31 #include "berlin2-pll.h"
  32 #include "common.h"
  33
  34 #define REG_PINMUX0             0x0000
  35 #define REG_PINMUX1             0x0004
  36 #define REG_SYSPLLCTL0          0x0014
  37 #define REG_SYSPLLCTL4          0x0024
  38 #define REG_MEMPLLCTL0          0x0028
  39 #define REG_MEMPLLCTL4          0x0038
  40 #define REG_CPUPLLCTL0          0x003c
  41 #define REG_CPUPLLCTL4          0x004c
  42 #define REG_AVPLLCTL0           0x0050
  43 #define REG_AVPLLCTL31          0x00cc
  44 #define REG_AVPLLCTL62          0x0148
  45 #define REG_PLLSTATUS           0x014c
  46 #define REG_CLKENABLE           0x0150
  47 #define REG_CLKSELECT0          0x0154
  48 #define REG_CLKSELECT1          0x0158
  49 #define REG_CLKSELECT2          0x015c
  50 #define REG_CLKSELECT3          0x0160
  51 #define REG_CLKSWITCH0          0x0164
  52 #define REG_CLKSWITCH1          0x0168
  53 #define REG_RESET_TRIGGER       0x0178
  54 #define REG_RESET_STATUS0       0x017c
  55 #define REG_RESET_STATUS1       0x0180
  56 #define REG_SW_GENERIC0         0x0184
  57 #define REG_SW_GENERIC3         0x0190
  58 #define REG_PRODUCTID           0x01cc
  59 #define REG_PRODUCTID_EXT       0x01d0
  60 #define REG_GFX3DCORE_CLKCTL    0x022c
  61 #define REG_GFX3DSYS_CLKCTL     0x0230
  62 #define REG_ARC_CLKCTL          0x0234
  63 #define REG_VIP_CLKCTL          0x0238
  64 #define REG_SDIO0XIN_CLKCTL     0x023c
  65 #define REG_SDIO1XIN_CLKCTL     0x0240
  66 #define REG_GFX3DEXTRA_CLKCTL   0x0244
  67 #define REG_GFX3D_RESET         0x0248
  68 #define REG_GC360_CLKCTL        0x024c
  69 #define REG_SDIO_DLLMST_CLKCTL  0x0250
  70
  71 /*
  72  * BG2/BG2CD SoCs have the following audio/video I/O units:
  73  *
  74  * audiohd: HDMI TX audio
  75  * audio0:  7.1ch TX
  76  * audio1:  2ch TX
  77  * audio2:  2ch RX
  78  * audio3:  SPDIF TX
  79  * video0:  HDMI video
  80  * video1:  Secondary video
  81  * video2:  SD auxiliary video
  82  *
  83  * There are no external audio clocks (ACLKI0, ACLKI1) and
  84  * only one external video clock (VCLKI0).
  85  *
  86  * Currently missing bits and pieces:
  87  * - audio_fast_pll is unknown
  88  * - audiohd_pll is unknown
  89  * - video0_pll is unknown
  90  * - audio[023], audiohd parent pll is assumed to be audio_fast_pll
  91  *
  92  */
  93
  94 #define MAX_CLKS 41
  95 static struct clk *clks[MAX_CLKS];
  96 static struct clk_onecell_data clk_data;
  97 static DEFINE_SPINLOCK(lock);
  98 static void __iomem *gbase;
  99
 100 enum {
 101         REFCLK, VIDEO_EXT0,
 102         SYSPLL, MEMPLL, CPUPLL,
 103         AVPLL_A1, AVPLL_A2, AVPLL_A3, AVPLL_A4,
 104         AVPLL_A5, AVPLL_A6, AVPLL_A7, AVPLL_A8,
 105         AVPLL_B1, AVPLL_B2, AVPLL_B3, AVPLL_B4,
 106         AVPLL_B5, AVPLL_B6, AVPLL_B7, AVPLL_B8,
 107         AUDIO1_PLL, AUDIO_FAST_PLL,
 108         VIDEO0_PLL, VIDEO0_IN,
 109         VIDEO1_PLL, VIDEO1_IN,
 110         VIDEO2_PLL, VIDEO2_IN,
 111 };
 112
 113 static const char *clk_names[] = {
 114         [REFCLK]                = "refclk",
 115         [VIDEO_EXT0]            = "video_ext0",
 116         [SYSPLL]                = "syspll",
 117         [MEMPLL]                = "mempll",
 118         [CPUPLL]                = "cpupll",
 119         [AVPLL_A1]              = "avpll_a1",
 120         [AVPLL_A2]              = "avpll_a2",
 121         [AVPLL_A3]              = "avpll_a3",
 122         [AVPLL_A4]              = "avpll_a4",
 123         [AVPLL_A5]              = "avpll_a5",
 124         [AVPLL_A6]              = "avpll_a6",
 125         [AVPLL_A7]              = "avpll_a7",
 126         [AVPLL_A8]              = "avpll_a8",
 127         [AVPLL_B1]              = "avpll_b1",
 128         [AVPLL_B2]              = "avpll_b2",
 129         [AVPLL_B3]              = "avpll_b3",
 130         [AVPLL_B4]              = "avpll_b4",
 131         [AVPLL_B5]              = "avpll_b5",
 132         [AVPLL_B6]              = "avpll_b6",
 133         [AVPLL_B7]              = "avpll_b7",
 134         [AVPLL_B8]              = "avpll_b8",
 135         [AUDIO1_PLL]            = "audio1_pll",
 136         [AUDIO_FAST_PLL]        = "audio_fast_pll",
 137         [VIDEO0_PLL]            = "video0_pll",
 138         [VIDEO0_IN]             = "video0_in",
 139         [VIDEO1_PLL]            = "video1_pll",
 140         [VIDEO1_IN]             = "video1_in",
 141         [VIDEO2_PLL]            = "video2_pll",
 142         [VIDEO2_IN]             = "video2_in",
 143 };
 144
 145 static const struct berlin2_pll_map bg2_pll_map __initconst = {
 146         .vcodiv         = {10, 15, 20, 25, 30, 40, 50, 60, 80},
 147         .mult           = 10,
 148         .fbdiv_shift    = 6,
 149         .rfdiv_shift    = 1,
 150         .divsel_shift   = 7,
 151 };
 152
 153 static const u8 default_parent_ids[] = {
 154         SYSPLL, AVPLL_B4, AVPLL_A5, AVPLL_B6, AVPLL_B7, SYSPLL
 155 };
 156
 157 static const struct berlin2_div_data bg2_divs[] __initconst = {
 158         {
 159                 .name = "sys",
 160                 .parent_ids = (const u8 []){
 161                         SYSPLL, AVPLL_B4, AVPLL_B5, AVPLL_B6, AVPLL_B7, SYSPLL
 162                 },
 163                 .num_parents = 6,
 164                 .map = {
 165                         BERLIN2_DIV_GATE(REG_CLKENABLE, 0),
 166                         BERLIN2_PLL_SELECT(REG_CLKSELECT0, 0),
 167                         BERLIN2_DIV_SELECT(REG_CLKSELECT0, 3),
 168                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 3),
 169                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 4),
 170                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 5),
 171                 },
 172                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 173                 .flags = CLK_IGNORE_UNUSED,
 174         },
 175         {
 176                 .name = "cpu",
 177                 .parent_ids = (const u8 []){
 178                         CPUPLL, MEMPLL, MEMPLL, MEMPLL, MEMPLL
 179                 },
 180                 .num_parents = 5,
 181                 .map = {
 182                         BERLIN2_PLL_SELECT(REG_CLKSELECT0, 6),
 183                         BERLIN2_DIV_SELECT(REG_CLKSELECT0, 9),
 184                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 6),
 185                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 7),
 186                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 8),
 187                 },
 188                 .div_flags = BERLIN2_DIV_HAS_MUX,
 189                 .flags = 0,
 190         },
 191         {
 192                 .name = "drmfigo",
 193                 .parent_ids = default_parent_ids,
 194                 .num_parents = ARRAY_SIZE(default_parent_ids),
 195                 .map = {
 196                         BERLIN2_DIV_GATE(REG_CLKENABLE, 16),
 197                         BERLIN2_PLL_SELECT(REG_CLKSELECT0, 17),
 198                         BERLIN2_DIV_SELECT(REG_CLKSELECT0, 20),
 199                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 12),
 200                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 13),
 201                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 14),
 202                 },
 203                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 204                 .flags = 0,
 205         },
 206         {
 207                 .name = "cfg",
 208                 .parent_ids = default_parent_ids,
 209                 .num_parents = ARRAY_SIZE(default_parent_ids),
 210                 .map = {
 211                         BERLIN2_DIV_GATE(REG_CLKENABLE, 1),
 212                         BERLIN2_PLL_SELECT(REG_CLKSELECT0, 23),
 213                         BERLIN2_DIV_SELECT(REG_CLKSELECT0, 26),
 214                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 15),
 215                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 16),
 216                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 17),
 217                 },
 218                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 219                 .flags = 0,
 220         },
 221         {
 222                 .name = "gfx",
 223                 .parent_ids = default_parent_ids,
 224                 .num_parents = ARRAY_SIZE(default_parent_ids),
 225                 .map = {
 226                         BERLIN2_DIV_GATE(REG_CLKENABLE, 4),
 227                         BERLIN2_PLL_SELECT(REG_CLKSELECT0, 29),
 228                         BERLIN2_DIV_SELECT(REG_CLKSELECT1, 0),
 229                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 18),
 230                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 19),
 231                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 20),
 232                 },
 233                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 234                 .flags = 0,
 235         },
 236         {
 237                 .name = "zsp",
 238                 .parent_ids = default_parent_ids,
 239                 .num_parents = ARRAY_SIZE(default_parent_ids),
 240                 .map = {
 241                         BERLIN2_DIV_GATE(REG_CLKENABLE, 5),
 242                         BERLIN2_PLL_SELECT(REG_CLKSELECT1, 3),
 243                         BERLIN2_DIV_SELECT(REG_CLKSELECT1, 6),
 244                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 21),
 245                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 22),
 246                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 23),
 247                 },
 248                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 249                 .flags = 0,
 250         },
 251         {
 252                 .name = "perif",
 253                 .parent_ids = default_parent_ids,
 254                 .num_parents = ARRAY_SIZE(default_parent_ids),
 255                 .map = {
 256                         BERLIN2_DIV_GATE(REG_CLKENABLE, 6),
 257                         BERLIN2_PLL_SELECT(REG_CLKSELECT1, 9),
 258                         BERLIN2_DIV_SELECT(REG_CLKSELECT1, 12),
 259                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 24),
 260                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 25),
 261                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 26),
 262                 },
 263                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 264                 .flags = CLK_IGNORE_UNUSED,
 265         },
 266         {
 267                 .name = "pcube",
 268                 .parent_ids = default_parent_ids,
 269                 .num_parents = ARRAY_SIZE(default_parent_ids),
 270                 .map = {
 271                         BERLIN2_DIV_GATE(REG_CLKENABLE, 2),
 272                         BERLIN2_PLL_SELECT(REG_CLKSELECT1, 15),
 273                         BERLIN2_DIV_SELECT(REG_CLKSELECT1, 18),
 274                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 27),
 275                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 28),
 276                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH0, 29),
 277                 },
 278                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 279                 .flags = 0,
 280         },
 281         {
 282                 .name = "vscope",
 283                 .parent_ids = default_parent_ids,
 284                 .num_parents = ARRAY_SIZE(default_parent_ids),
 285                 .map = {
 286                         BERLIN2_DIV_GATE(REG_CLKENABLE, 3),
 287                         BERLIN2_PLL_SELECT(REG_CLKSELECT1, 21),
 288                         BERLIN2_DIV_SELECT(REG_CLKSELECT1, 24),
 289                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH0, 30),
 290                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH0, 31),
 291                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 0),
 292                 },
 293                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 294                 .flags = 0,
 295         },
 296         {
 297                 .name = "nfc_ecc",
 298                 .parent_ids = default_parent_ids,
 299                 .num_parents = ARRAY_SIZE(default_parent_ids),
 300                 .map = {
 301                         BERLIN2_DIV_GATE(REG_CLKENABLE, 18),
 302                         BERLIN2_PLL_SELECT(REG_CLKSELECT1, 27),
 303                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 0),
 304                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 1),
 305                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 2),
 306                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 3),
 307                 },
 308                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 309                 .flags = 0,
 310         },
 311         {
 312                 .name = "vpp",
 313                 .parent_ids = default_parent_ids,
 314                 .num_parents = ARRAY_SIZE(default_parent_ids),
 315                 .map = {
 316                         BERLIN2_DIV_GATE(REG_CLKENABLE, 21),
 317                         BERLIN2_PLL_SELECT(REG_CLKSELECT2, 3),
 318                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 6),
 319                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 4),
 320                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 5),
 321                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 6),
 322                 },
 323                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 324                 .flags = 0,
 325         },
 326         {
 327                 .name = "app",
 328                 .parent_ids = default_parent_ids,
 329                 .num_parents = ARRAY_SIZE(default_parent_ids),
 330                 .map = {
 331                         BERLIN2_DIV_GATE(REG_CLKENABLE, 20),
 332                         BERLIN2_PLL_SELECT(REG_CLKSELECT2, 9),
 333                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 12),
 334                         BERLIN2_PLL_SWITCH(REG_CLKSWITCH1, 7),
 335                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 8),
 336                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 9),
 337                 },
 338                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 339                 .flags = 0,
 340         },
 341         {
 342                 .name = "audio0",
 343                 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
 344                 .num_parents = 1,
 345                 .map = {
 346                         BERLIN2_DIV_GATE(REG_CLKENABLE, 22),
 347                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 17),
 348                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 10),
 349                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 11),
 350                 },
 351                 .div_flags = BERLIN2_DIV_HAS_GATE,
 352                 .flags = 0,
 353         },
 354         {
 355                 .name = "audio2",
 356                 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
 357                 .num_parents = 1,
 358                 .map = {
 359                         BERLIN2_DIV_GATE(REG_CLKENABLE, 24),
 360                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 20),
 361                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 14),
 362                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 15),
 363                 },
 364                 .div_flags = BERLIN2_DIV_HAS_GATE,
 365                 .flags = 0,
 366         },
 367         {
 368                 .name = "audio3",
 369                 .parent_ids = (const u8 []){ AUDIO_FAST_PLL },
 370                 .num_parents = 1,
 371                 .map = {
 372                         BERLIN2_DIV_GATE(REG_CLKENABLE, 25),
 373                         BERLIN2_DIV_SELECT(REG_CLKSELECT2, 23),
 374                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 16),
 375                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 17),
 376                 },
 377                 .div_flags = BERLIN2_DIV_HAS_GATE,
 378                 .flags = 0,
 379         },
 380         {
 381                 .name = "audio1",
 382                 .parent_ids = (const u8 []){ AUDIO1_PLL },
 383                 .num_parents = 1,
 384                 .map = {
 385                         BERLIN2_DIV_GATE(REG_CLKENABLE, 23),
 386                         BERLIN2_DIV_SELECT(REG_CLKSELECT3, 0),
 387                         BERLIN2_DIV_SWITCH(REG_CLKSWITCH1, 12),
 388                         BERLIN2_DIV_D3SWITCH(REG_CLKSWITCH1, 13),
 389                 },
 390                 .div_flags = BERLIN2_DIV_HAS_GATE,
 391                 .flags = 0,
 392         },
 393         {
 394                 .name = "gfx3d_core",
 395                 .parent_ids = default_parent_ids,
 396                 .num_parents = ARRAY_SIZE(default_parent_ids),
 397                 .map = {
 398                         BERLIN2_SINGLE_DIV(REG_GFX3DCORE_CLKCTL),
 399                 },
 400                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 401                 .flags = 0,
 402         },
 403         {
 404                 .name = "gfx3d_sys",
 405                 .parent_ids = default_parent_ids,
 406                 .num_parents = ARRAY_SIZE(default_parent_ids),
 407                 .map = {
 408                         BERLIN2_SINGLE_DIV(REG_GFX3DSYS_CLKCTL),
 409                 },
 410                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 411                 .flags = 0,
 412         },
 413         {
 414                 .name = "arc",
 415                 .parent_ids = default_parent_ids,
 416                 .num_parents = ARRAY_SIZE(default_parent_ids),
 417                 .map = {
 418                         BERLIN2_SINGLE_DIV(REG_ARC_CLKCTL),
 419                 },
 420                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 421                 .flags = 0,
 422         },
 423         {
 424                 .name = "vip",
 425                 .parent_ids = default_parent_ids,
 426                 .num_parents = ARRAY_SIZE(default_parent_ids),
 427                 .map = {
 428                         BERLIN2_SINGLE_DIV(REG_VIP_CLKCTL),
 429                 },
 430                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 431                 .flags = 0,
 432         },
 433         {
 434                 .name = "sdio0xin",
 435                 .parent_ids = default_parent_ids,
 436                 .num_parents = ARRAY_SIZE(default_parent_ids),
 437                 .map = {
 438                         BERLIN2_SINGLE_DIV(REG_SDIO0XIN_CLKCTL),
 439                 },
 440                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 441                 .flags = 0,
 442         },
 443         {
 444                 .name = "sdio1xin",
 445                 .parent_ids = default_parent_ids,
 446                 .num_parents = ARRAY_SIZE(default_parent_ids),
 447                 .map = {
 448                         BERLIN2_SINGLE_DIV(REG_SDIO1XIN_CLKCTL),
 449                 },
 450                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 451                 .flags = 0,
 452         },
 453         {
 454                 .name = "gfx3d_extra",
 455                 .parent_ids = default_parent_ids,
 456                 .num_parents = ARRAY_SIZE(default_parent_ids),
 457                 .map = {
 458                         BERLIN2_SINGLE_DIV(REG_GFX3DEXTRA_CLKCTL),
 459                 },
 460                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 461                 .flags = 0,
 462         },
 463         {
 464                 .name = "gc360",
 465                 .parent_ids = default_parent_ids,
 466                 .num_parents = ARRAY_SIZE(default_parent_ids),
 467                 .map = {
 468                         BERLIN2_SINGLE_DIV(REG_GC360_CLKCTL),
 469                 },
 470                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 471                 .flags = 0,
 472         },
 473         {
 474                 .name = "sdio_dllmst",
 475                 .parent_ids = default_parent_ids,
 476                 .num_parents = ARRAY_SIZE(default_parent_ids),
 477                 .map = {
 478                         BERLIN2_SINGLE_DIV(REG_SDIO_DLLMST_CLKCTL),
 479                 },
 480                 .div_flags = BERLIN2_DIV_HAS_GATE | BERLIN2_DIV_HAS_MUX,
 481                 .flags = 0,
 482         },
 483 };
 484
 485 static const struct berlin2_gate_data bg2_gates[] __initconst = {
 486         { "geth0",      "perif",        7 },
 487         { "geth1",      "perif",        8 },
 488         { "sata",       "perif",        9 },
 489         { "ahbapb",     "perif",        10, CLK_IGNORE_UNUSED },
 490         { "usb0",       "perif",        11 },
 491         { "usb1",       "perif",        12 },
 492         { "pbridge",    "perif",        13, CLK_IGNORE_UNUSED },
 493         { "sdio0",      "perif",        14 },
 494         { "sdio1",      "perif",        15 },
 495         { "nfc",        "perif",        17 },
 496         { "smemc",      "perif",        19 },
 497         { "audiohd",    "audiohd_pll",  26 },
 498         { "video0",     "video0_in",    27 },
 499         { "video1",     "video1_in",    28 },
 500         { "video2",     "video2_in",    29 },
 501 };
 502
 503 static void __init berlin2_clock_setup(struct device_node *np)
 504 {
 505         struct device_node *parent_np = of_get_parent(np);
 506         const char *parent_names[9];
 507         struct clk *clk;
 508         u8 avpll_flags = 0;
 509         int n;
 510
 511         gbase = of_iomap(parent_np, 0);
 512         if (!gbase)
 513                 return;
 514
 515         /* overwrite default clock names with DT provided ones */
 516         clk = of_clk_get_by_name(np, clk_names[REFCLK]);
 517         if (!IS_ERR(clk)) {
 518                 clk_names[REFCLK] = __clk_get_name(clk);
 519                 clk_put(clk);
 520         }
 521
 522         clk = of_clk_get_by_name(np, clk_names[VIDEO_EXT0]);
 523         if (!IS_ERR(clk)) {
 524                 clk_names[VIDEO_EXT0] = __clk_get_name(clk);
 525                 clk_put(clk);
 526         }
 527
 528         /* simple register PLLs */
 529         clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_SYSPLLCTL0,
 530                                    clk_names[SYSPLL], clk_names[REFCLK], 0);
 531         if (IS_ERR(clk))
 532                 goto bg2_fail;
 533
 534         clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_MEMPLLCTL0,
 535                                    clk_names[MEMPLL], clk_names[REFCLK], 0);
 536         if (IS_ERR(clk))
 537                 goto bg2_fail;
 538
 539         clk = berlin2_pll_register(&bg2_pll_map, gbase + REG_CPUPLLCTL0,
 540                                    clk_names[CPUPLL], clk_names[REFCLK], 0);
 541         if (IS_ERR(clk))
 542                 goto bg2_fail;
 543
 544         if (of_device_is_compatible(np, "marvell,berlin2-global-register"))
 545                 avpll_flags |= BERLIN2_AVPLL_SCRAMBLE_QUIRK;
 546
 547         /* audio/video VCOs */
 548         clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL0, "avpll_vcoA",
 549                          clk_names[REFCLK], avpll_flags, 0);
 550         if (IS_ERR(clk))
 551                 goto bg2_fail;
 552
 553         for (n = 0; n < 8; n++) {
 554                 clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL0,
 555                              clk_names[AVPLL_A1 + n], n, "avpll_vcoA",
 556                              avpll_flags, 0);
 557                 if (IS_ERR(clk))
 558                         goto bg2_fail;
 559         }
 560
 561         clk = berlin2_avpll_vco_register(gbase + REG_AVPLLCTL31, "avpll_vcoB",
 562                                  clk_names[REFCLK], BERLIN2_AVPLL_BIT_QUIRK |
 563                                  avpll_flags, 0);
 564         if (IS_ERR(clk))
 565                 goto bg2_fail;
 566
 567         for (n = 0; n < 8; n++) {
 568                 clk = berlin2_avpll_channel_register(gbase + REG_AVPLLCTL31,
 569                              clk_names[AVPLL_B1 + n], n, "avpll_vcoB",
 570                              BERLIN2_AVPLL_BIT_QUIRK | avpll_flags, 0);
 571                 if (IS_ERR(clk))
 572                         goto bg2_fail;
 573         }
 574
 575         /* reference clock bypass switches */
 576         parent_names[0] = clk_names[SYSPLL];
 577         parent_names[1] = clk_names[REFCLK];
 578         clk = clk_register_mux(NULL, "syspll_byp", parent_names, 2,
 579                                0, gbase + REG_CLKSWITCH0, 0, 1, 0, &lock);
 580         if (IS_ERR(clk))
 581                 goto bg2_fail;
 582         clk_names[SYSPLL] = __clk_get_name(clk);
 583
 584         parent_names[0] = clk_names[MEMPLL];
 585         parent_names[1] = clk_names[REFCLK];
 586         clk = clk_register_mux(NULL, "mempll_byp", parent_names, 2,
 587                                0, gbase + REG_CLKSWITCH0, 1, 1, 0, &lock);
 588         if (IS_ERR(clk))
 589                 goto bg2_fail;
 590         clk_names[MEMPLL] = __clk_get_name(clk);
 591
 592         parent_names[0] = clk_names[CPUPLL];
 593         parent_names[1] = clk_names[REFCLK];
 594         clk = clk_register_mux(NULL, "cpupll_byp", parent_names, 2,
 595                                0, gbase + REG_CLKSWITCH0, 2, 1, 0, &lock);
 596         if (IS_ERR(clk))
 597                 goto bg2_fail;
 598         clk_names[CPUPLL] = __clk_get_name(clk);
 599
 600         /* clock muxes */
 601         parent_names[0] = clk_names[AVPLL_B3];
 602         parent_names[1] = clk_names[AVPLL_A3];
 603         clk = clk_register_mux(NULL, clk_names[AUDIO1_PLL], parent_names, 2,
 604                                0, gbase + REG_CLKSELECT2, 29, 1, 0, &lock);
 605         if (IS_ERR(clk))
 606                 goto bg2_fail;
 607
 608         parent_names[0] = clk_names[VIDEO0_PLL];
 609         parent_names[1] = clk_names[VIDEO_EXT0];
 610         clk = clk_register_mux(NULL, clk_names[VIDEO0_IN], parent_names, 2,
 611                                0, gbase + REG_CLKSELECT3, 4, 1, 0, &lock);
 612         if (IS_ERR(clk))
 613                 goto bg2_fail;
 614
 615         parent_names[0] = clk_names[VIDEO1_PLL];
 616         parent_names[1] = clk_names[VIDEO_EXT0];
 617         clk = clk_register_mux(NULL, clk_names[VIDEO1_IN], parent_names, 2,
 618                                0, gbase + REG_CLKSELECT3, 6, 1, 0, &lock);
 619         if (IS_ERR(clk))
 620                 goto bg2_fail;
 621
 622         parent_names[0] = clk_names[AVPLL_A2];
 623         parent_names[1] = clk_names[AVPLL_B2];
 624         clk = clk_register_mux(NULL, clk_names[VIDEO1_PLL], parent_names, 2,
 625                                0, gbase + REG_CLKSELECT3, 7, 1, 0, &lock);
 626         if (IS_ERR(clk))
 627                 goto bg2_fail;
 628
 629         parent_names[0] = clk_names[VIDEO2_PLL];
 630         parent_names[1] = clk_names[VIDEO_EXT0];
 631         clk = clk_register_mux(NULL, clk_names[VIDEO2_IN], parent_names, 2,
 632                                0, gbase + REG_CLKSELECT3, 9, 1, 0, &lock);
 633         if (IS_ERR(clk))
 634                 goto bg2_fail;
 635
 636         parent_names[0] = clk_names[AVPLL_B1];
 637         parent_names[1] = clk_names[AVPLL_A5];
 638         clk = clk_register_mux(NULL, clk_names[VIDEO2_PLL], parent_names, 2,
 639                                0, gbase + REG_CLKSELECT3, 10, 1, 0, &lock);
 640         if (IS_ERR(clk))
 641                 goto bg2_fail;
 642
 643         /* clock divider cells */
 644         for (n = 0; n < ARRAY_SIZE(bg2_divs); n++) {
 645                 const struct berlin2_div_data *dd = &bg2_divs[n];
 646                 int k;
 647
 648                 for (k = 0; k < dd->num_parents; k++)
 649                         parent_names[k] = clk_names[dd->parent_ids[k]];
 650
 651                 clks[CLKID_SYS + n] = berlin2_div_register(&dd->map, gbase,
 652                                 dd->name, dd->div_flags, parent_names,
 653                                 dd->num_parents, dd->flags, &lock);
 654         }
 655
 656         /* clock gate cells */
 657         for (n = 0; n < ARRAY_SIZE(bg2_gates); n++) {
 658                 const struct berlin2_gate_data *gd = &bg2_gates[n];
 659
 660                 clks[CLKID_GETH0 + n] = clk_register_gate(NULL, gd->name,
 661                             gd->parent_name, gd->flags, gbase + REG_CLKENABLE,
 662                             gd->bit_idx, 0, &lock);
 663         }
 664
 665         /* twdclk is derived from cpu/3 */
 666         clks[CLKID_TWD] =
 667                 clk_register_fixed_factor(NULL, "twd", "cpu", 0, 1, 3);
 668
 669         /* check for errors on leaf clocks */
 670         for (n = 0; n < MAX_CLKS; n++) {
 671                 if (!IS_ERR(clks[n]))
 672                         continue;
 673
 674                 pr_err("%s: Unable to register leaf clock %d\n",
 675                        np->full_name, n);
 676                 goto bg2_fail;
 677         }
 678
 679         /* register clk-provider */
 680         clk_data.clks = clks;
 681         clk_data.clk_num = MAX_CLKS;
 682         of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 683
 684         return;
 685
 686 bg2_fail:
 687         iounmap(gbase);
 688 }
 689 CLK_OF_DECLARE(berlin2_clk, "marvell,berlin2-clk",
 690                berlin2_clock_setup);