arch/arm/mach-s5p64x0/clock-s5p6450.c

   1 /* linux/arch/arm/mach-s5p64x0/clock-s5p6450.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * S5P6450 - Clock support
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11 */
  12
  13 #include <linux/init.h>
  14 #include <linux/module.h>
  15 #include <linux/kernel.h>
  16 #include <linux/list.h>
  17 #include <linux/errno.h>
  18 #include <linux/err.h>
  19 #include <linux/clk.h>
  20 #include <linux/device.h>
  21 #include <linux/io.h>
  22
  23 #include <mach/hardware.h>
  24 #include <mach/map.h>
  25 #include <mach/regs-clock.h>
  26 #include <mach/s5p64x0-clock.h>
  27
  28 #include <plat/cpu-freq.h>
  29 #include <plat/clock.h>
  30 #include <plat/cpu.h>
  31 #include <plat/pll.h>
  32 #include <plat/s5p-clock.h>
  33 #include <plat/clock-clksrc.h>
  34
  35 #include "common.h"
  36
  37 static struct clksrc_clk clk_mout_dpll = {
  38         .clk    = {
  39                 .name           = "mout_dpll",
  40         },
  41         .sources        = &clk_src_dpll,
  42         .reg_src        = { .reg = S5P64X0_CLK_SRC0, .shift = 5, .size = 1 },
  43 };
  44
  45 static u32 epll_div[][5] = {
  46         { 133000000,    27307,  55, 2, 2 },
  47         { 100000000,    43691,  41, 2, 2 },
  48         { 480000000,    0,      80, 2, 0 },
  49 };
  50
  51 static int s5p6450_epll_set_rate(struct clk *clk, unsigned long rate)
  52 {
  53         unsigned int epll_con, epll_con_k;
  54         unsigned int i;
  55
  56         if (clk->rate == rate)  /* Return if nothing changed */
  57                 return 0;
  58
  59         epll_con = __raw_readl(S5P64X0_EPLL_CON);
  60         epll_con_k = __raw_readl(S5P64X0_EPLL_CON_K);
  61
  62         epll_con_k &= ~(PLL90XX_KDIV_MASK);
  63         epll_con &= ~(PLL90XX_MDIV_MASK | PLL90XX_PDIV_MASK | PLL90XX_SDIV_MASK);
  64
  65         for (i = 0; i < ARRAY_SIZE(epll_div); i++) {
  66                  if (epll_div[i][0] == rate) {
  67                         epll_con_k |= (epll_div[i][1] << PLL90XX_KDIV_SHIFT);
  68                         epll_con |= (epll_div[i][2] << PLL90XX_MDIV_SHIFT) |
  69                                     (epll_div[i][3] << PLL90XX_PDIV_SHIFT) |
  70                                     (epll_div[i][4] << PLL90XX_SDIV_SHIFT);
  71                         break;
  72                 }
  73         }
  74
  75         if (i == ARRAY_SIZE(epll_div)) {
  76                 printk(KERN_ERR "%s: Invalid Clock EPLL Frequency\n", __func__);
  77                 return -EINVAL;
  78         }
  79
  80         __raw_writel(epll_con, S5P64X0_EPLL_CON);
  81         __raw_writel(epll_con_k, S5P64X0_EPLL_CON_K);
  82
  83         printk(KERN_WARNING "EPLL Rate changes from %lu to %lu\n",
  84                         clk->rate, rate);
  85
  86         clk->rate = rate;
  87
  88         return 0;
  89 }
  90
  91 static struct clk_ops s5p6450_epll_ops = {
  92         .get_rate = s5p_epll_get_rate,
  93         .set_rate = s5p6450_epll_set_rate,
  94 };
  95
  96 static struct clksrc_clk clk_dout_epll = {
  97         .clk    = {
  98                 .name           = "dout_epll",
  99                 .parent         = &clk_mout_epll.clk,
 100         },
 101         .reg_div        = { .reg = S5P64X0_CLK_DIV1, .shift = 24, .size = 4 },
 102 };
 103
 104 static struct clksrc_clk clk_mout_hclk_sel = {
 105         .clk    = {
 106                 .name           = "mout_hclk_sel",
 107         },
 108         .sources        = &clkset_hclk_low,
 109         .reg_src        = { .reg = S5P64X0_OTHERS, .shift = 15, .size = 1 },
 110 };
 111
 112 static struct clk *clkset_hclk_list[] = {
 113         &clk_mout_hclk_sel.clk,
 114         &clk_armclk.clk,
 115 };
 116
 117 static struct clksrc_sources clkset_hclk = {
 118         .sources        = clkset_hclk_list,
 119         .nr_sources     = ARRAY_SIZE(clkset_hclk_list),
 120 };
 121
 122 static struct clksrc_clk clk_hclk = {
 123         .clk    = {
 124                 .name           = "clk_hclk",
 125         },
 126         .sources        = &clkset_hclk,
 127         .reg_src        = { .reg = S5P64X0_OTHERS, .shift = 14, .size = 1 },
 128         .reg_div        = { .reg = S5P64X0_CLK_DIV0, .shift = 8, .size = 4 },
 129 };
 130
 131 static struct clksrc_clk clk_pclk = {
 132         .clk    = {
 133                 .name           = "clk_pclk",
 134                 .parent         = &clk_hclk.clk,
 135         },
 136         .reg_div = { .reg = S5P64X0_CLK_DIV0, .shift = 12, .size = 4 },
 137 };
 138 static struct clksrc_clk clk_dout_pwm_ratio0 = {
 139         .clk    = {
 140                 .name           = "clk_dout_pwm_ratio0",
 141                 .parent         = &clk_mout_hclk_sel.clk,
 142         },
 143         .reg_div        = { .reg = S5P64X0_CLK_DIV3, .shift = 16, .size = 4 },
 144 };
 145
 146 static struct clksrc_clk clk_pclk_to_wdt_pwm = {
 147         .clk    = {
 148                 .name           = "clk_pclk_to_wdt_pwm",
 149                 .parent         = &clk_dout_pwm_ratio0.clk,
 150         },
 151         .reg_div        = { .reg = S5P64X0_CLK_DIV3, .shift = 20, .size = 4 },
 152 };
 153
 154 static struct clksrc_clk clk_hclk_low = {
 155         .clk    = {
 156                 .name           = "clk_hclk_low",
 157         },
 158         .sources        = &clkset_hclk_low,
 159         .reg_src        = { .reg = S5P64X0_OTHERS, .shift = 6, .size = 1 },
 160         .reg_div        = { .reg = S5P64X0_CLK_DIV3, .shift = 8, .size = 4 },
 161 };
 162
 163 static struct clksrc_clk clk_pclk_low = {
 164         .clk    = {
 165                 .name           = "clk_pclk_low",
 166                 .parent         = &clk_hclk_low.clk,
 167         },
 168         .reg_div        = { .reg = S5P64X0_CLK_DIV3, .shift = 12, .size = 4 },
 169 };
 170
 171 /*
 172  * The following clocks will be disabled during clock initialization. It is
 173  * recommended to keep the following clocks disabled until the driver requests
 174  * for enabling the clock.
 175  */
 176 static struct clk init_clocks_off[] = {
 177         {
 178                 .name           = "usbhost",
 179                 .parent         = &clk_hclk_low.clk,
 180                 .enable         = s5p64x0_hclk0_ctrl,
 181                 .ctrlbit        = (1 << 3),
 182         }, {
 183                 .name           = "dma",
 184                 .devname        = "dma-pl330",
 185                 .parent         = &clk_hclk_low.clk,
 186                 .enable         = s5p64x0_hclk0_ctrl,
 187                 .ctrlbit        = (1 << 12),
 188         }, {
 189                 .name           = "hsmmc",
 190                 .devname        = "s3c-sdhci.0",
 191                 .parent         = &clk_hclk_low.clk,
 192                 .enable         = s5p64x0_hclk0_ctrl,
 193                 .ctrlbit        = (1 << 17),
 194         }, {
 195                 .name           = "hsmmc",
 196                 .devname        = "s3c-sdhci.1",
 197                 .parent         = &clk_hclk_low.clk,
 198                 .enable         = s5p64x0_hclk0_ctrl,
 199                 .ctrlbit        = (1 << 18),
 200         }, {
 201                 .name           = "hsmmc",
 202                 .devname        = "s3c-sdhci.2",
 203                 .parent         = &clk_hclk_low.clk,
 204                 .enable         = s5p64x0_hclk0_ctrl,
 205                 .ctrlbit        = (1 << 19),
 206         }, {
 207                 .name           = "usbotg",
 208                 .parent         = &clk_hclk_low.clk,
 209                 .enable         = s5p64x0_hclk0_ctrl,
 210                 .ctrlbit        = (1 << 20),
 211         }, {
 212                 .name           = "lcd",
 213                 .parent         = &clk_h,
 214                 .enable         = s5p64x0_hclk1_ctrl,
 215                 .ctrlbit        = (1 << 1),
 216         }, {
 217                 .name           = "watchdog",
 218                 .parent         = &clk_pclk_low.clk,
 219                 .enable         = s5p64x0_pclk_ctrl,
 220                 .ctrlbit        = (1 << 5),
 221         }, {
 222                 .name           = "rtc",
 223                 .parent         = &clk_pclk_low.clk,
 224                 .enable         = s5p64x0_pclk_ctrl,
 225                 .ctrlbit        = (1 << 6),
 226         }, {
 227                 .name           = "adc",
 228                 .parent         = &clk_pclk_low.clk,
 229                 .enable         = s5p64x0_pclk_ctrl,
 230                 .ctrlbit        = (1 << 12),
 231         }, {
 232                 .name           = "i2c",
 233                 .devname        = "s3c2440-i2c.0",
 234                 .parent         = &clk_pclk_low.clk,
 235                 .enable         = s5p64x0_pclk_ctrl,
 236                 .ctrlbit        = (1 << 17),
 237         }, {
 238                 .name           = "spi",
 239                 .devname        = "s5p64x0-spi.0",
 240                 .parent         = &clk_pclk_low.clk,
 241                 .enable         = s5p64x0_pclk_ctrl,
 242                 .ctrlbit        = (1 << 21),
 243         }, {
 244                 .name           = "spi",
 245                 .devname        = "s5p64x0-spi.1",
 246                 .parent         = &clk_pclk_low.clk,
 247                 .enable         = s5p64x0_pclk_ctrl,
 248                 .ctrlbit        = (1 << 22),
 249         }, {
 250                 .name           = "iis",
 251                 .devname        = "samsung-i2s.0",
 252                 .parent         = &clk_pclk_low.clk,
 253                 .enable         = s5p64x0_pclk_ctrl,
 254                 .ctrlbit        = (1 << 26),
 255         }, {
 256                 .name           = "iis",
 257                 .devname        = "samsung-i2s.1",
 258                 .parent         = &clk_pclk_low.clk,
 259                 .enable         = s5p64x0_pclk_ctrl,
 260                 .ctrlbit        = (1 << 15),
 261         }, {
 262                 .name           = "iis",
 263                 .devname        = "samsung-i2s.2",
 264                 .parent         = &clk_pclk_low.clk,
 265                 .enable         = s5p64x0_pclk_ctrl,
 266                 .ctrlbit        = (1 << 16),
 267         }, {
 268                 .name           = "i2c",
 269                 .devname        = "s3c2440-i2c.1",
 270                 .parent         = &clk_pclk_low.clk,
 271                 .enable         = s5p64x0_pclk_ctrl,
 272                 .ctrlbit        = (1 << 27),
 273         }, {
 274                 .name           = "dmc0",
 275                 .parent         = &clk_pclk.clk,
 276                 .enable         = s5p64x0_pclk_ctrl,
 277                 .ctrlbit        = (1 << 30),
 278         }
 279 };
 280
 281 /*
 282  * The following clocks will be enabled during clock initialization.
 283  */
 284 static struct clk init_clocks[] = {
 285         {
 286                 .name           = "intc",
 287                 .parent         = &clk_hclk.clk,
 288                 .enable         = s5p64x0_hclk0_ctrl,
 289                 .ctrlbit        = (1 << 1),
 290         }, {
 291                 .name           = "mem",
 292                 .parent         = &clk_hclk.clk,
 293                 .enable         = s5p64x0_hclk0_ctrl,
 294                 .ctrlbit        = (1 << 21),
 295         }, {
 296                 .name           = "uart",
 297                 .devname        = "s3c6400-uart.0",
 298                 .parent         = &clk_pclk_low.clk,
 299                 .enable         = s5p64x0_pclk_ctrl,
 300                 .ctrlbit        = (1 << 1),
 301         }, {
 302                 .name           = "uart",
 303                 .devname        = "s3c6400-uart.1",
 304                 .parent         = &clk_pclk_low.clk,
 305                 .enable         = s5p64x0_pclk_ctrl,
 306                 .ctrlbit        = (1 << 2),
 307         }, {
 308                 .name           = "uart",
 309                 .devname        = "s3c6400-uart.2",
 310                 .parent         = &clk_pclk_low.clk,
 311                 .enable         = s5p64x0_pclk_ctrl,
 312                 .ctrlbit        = (1 << 3),
 313         }, {
 314                 .name           = "uart",
 315                 .devname        = "s3c6400-uart.3",
 316                 .parent         = &clk_pclk_low.clk,
 317                 .enable         = s5p64x0_pclk_ctrl,
 318                 .ctrlbit        = (1 << 4),
 319         }, {
 320                 .name           = "timers",
 321                 .parent         = &clk_pclk_to_wdt_pwm.clk,
 322                 .enable         = s5p64x0_pclk_ctrl,
 323                 .ctrlbit        = (1 << 7),
 324         }, {
 325                 .name           = "gpio",
 326                 .parent         = &clk_pclk_low.clk,
 327                 .enable         = s5p64x0_pclk_ctrl,
 328                 .ctrlbit        = (1 << 18),
 329         },
 330 };
 331
 332 static struct clk *clkset_uart_list[] = {
 333         &clk_dout_epll.clk,
 334         &clk_dout_mpll.clk,
 335 };
 336
 337 static struct clksrc_sources clkset_uart = {
 338         .sources        = clkset_uart_list,
 339         .nr_sources     = ARRAY_SIZE(clkset_uart_list),
 340 };
 341
 342 static struct clk *clkset_mali_list[] = {
 343         &clk_mout_epll.clk,
 344         &clk_mout_apll.clk,
 345         &clk_mout_mpll.clk,
 346 };
 347
 348 static struct clksrc_sources clkset_mali = {
 349         .sources        = clkset_mali_list,
 350         .nr_sources     = ARRAY_SIZE(clkset_mali_list),
 351 };
 352
 353 static struct clk *clkset_group2_list[] = {
 354         &clk_dout_epll.clk,
 355         &clk_dout_mpll.clk,
 356         &clk_ext_xtal_mux,
 357 };
 358
 359 static struct clksrc_sources clkset_group2 = {
 360         .sources        = clkset_group2_list,
 361         .nr_sources     = ARRAY_SIZE(clkset_group2_list),
 362 };
 363
 364 static struct clk *clkset_dispcon_list[] = {
 365         &clk_dout_epll.clk,
 366         &clk_dout_mpll.clk,
 367         &clk_ext_xtal_mux,
 368         &clk_mout_dpll.clk,
 369 };
 370
 371 static struct clksrc_sources clkset_dispcon = {
 372         .sources        = clkset_dispcon_list,
 373         .nr_sources     = ARRAY_SIZE(clkset_dispcon_list),
 374 };
 375
 376 static struct clk *clkset_hsmmc44_list[] = {
 377         &clk_dout_epll.clk,
 378         &clk_dout_mpll.clk,
 379         &clk_ext_xtal_mux,
 380         &s5p_clk_27m,
 381         &clk_48m,
 382 };
 383
 384 static struct clksrc_sources clkset_hsmmc44 = {
 385         .sources        = clkset_hsmmc44_list,
 386         .nr_sources     = ARRAY_SIZE(clkset_hsmmc44_list),
 387 };
 388
 389 static struct clk *clkset_sclk_audio0_list[] = {
 390         [0] = &clk_dout_epll.clk,
 391         [1] = &clk_dout_mpll.clk,
 392         [2] = &clk_ext_xtal_mux,
 393         [3] = NULL,
 394         [4] = NULL,
 395 };
 396
 397 static struct clksrc_sources clkset_sclk_audio0 = {
 398         .sources        = clkset_sclk_audio0_list,
 399         .nr_sources     = ARRAY_SIZE(clkset_sclk_audio0_list),
 400 };
 401
 402 static struct clksrc_clk clk_sclk_audio0 = {
 403         .clk            = {
 404                 .name           = "audio-bus",
 405                 .enable         = s5p64x0_sclk_ctrl,
 406                 .ctrlbit        = (1 << 8),
 407                 .parent         = &clk_dout_epll.clk,
 408         },
 409         .sources        = &clkset_sclk_audio0,
 410         .reg_src        = { .reg = S5P64X0_CLK_SRC1, .shift = 10, .size = 3 },
 411         .reg_div        = { .reg = S5P64X0_CLK_DIV2, .shift = 8, .size = 4 },
 412 };
 413
 414 static struct clksrc_clk clksrcs[] = {
 415         {
 416                 .clk    = {
 417                         .name           = "sclk_fimc",
 418                         .ctrlbit        = (1 << 10),
 419                         .enable         = s5p64x0_sclk_ctrl,
 420                 },
 421                 .sources = &clkset_group2,
 422                 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 26, .size = 2 },
 423                 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 12, .size = 4 },
 424         }, {
 425                 .clk    = {
 426                         .name           = "aclk_mali",
 427                         .ctrlbit        = (1 << 2),
 428                         .enable         = s5p64x0_sclk1_ctrl,
 429                 },
 430                 .sources = &clkset_mali,
 431                 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 8, .size = 2 },
 432                 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 4, .size = 4 },
 433         }, {
 434                 .clk    = {
 435                         .name           = "sclk_2d",
 436                         .ctrlbit        = (1 << 12),
 437                         .enable         = s5p64x0_sclk_ctrl,
 438                 },
 439                 .sources = &clkset_mali,
 440                 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 30, .size = 2 },
 441                 .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 20, .size = 4 },
 442         }, {
 443                 .clk    = {
 444                         .name           = "sclk_usi",
 445                         .ctrlbit        = (1 << 7),
 446                         .enable         = s5p64x0_sclk_ctrl,
 447                 },
 448                 .sources = &clkset_group2,
 449                 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 10, .size = 2 },
 450                 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 16, .size = 4 },
 451         }, {
 452                 .clk    = {
 453                         .name           = "sclk_camif",
 454                         .ctrlbit        = (1 << 6),
 455                         .enable         = s5p64x0_sclk_ctrl,
 456                 },
 457                 .sources = &clkset_group2,
 458                 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 28, .size = 2 },
 459                 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 20, .size = 4 },
 460         }, {
 461                 .clk    = {
 462                         .name           = "sclk_dispcon",
 463                         .ctrlbit        = (1 << 1),
 464                         .enable         = s5p64x0_sclk1_ctrl,
 465                 },
 466                 .sources = &clkset_dispcon,
 467                 .reg_src = { .reg = S5P64X0_CLK_SRC1, .shift = 4, .size = 2 },
 468                 .reg_div = { .reg = S5P64X0_CLK_DIV3, .shift = 0, .size = 4 },
 469         }, {
 470                 .clk    = {
 471                         .name           = "sclk_hsmmc44",
 472                         .ctrlbit        = (1 << 30),
 473                         .enable         = s5p64x0_sclk_ctrl,
 474                 },
 475                 .sources = &clkset_hsmmc44,
 476                 .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 6, .size = 3 },
 477                 .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 28, .size = 4 },
 478         },
 479 };
 480
 481 static struct clksrc_clk clk_sclk_mmc0 = {
 482         .clk    = {
 483                 .name           = "sclk_mmc",
 484                 .devname        = "s3c-sdhci.0",
 485                 .ctrlbit        = (1 << 24),
 486                 .enable         = s5p64x0_sclk_ctrl,
 487         },
 488         .sources = &clkset_group2,
 489         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
 490         .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
 491 };
 492
 493 static struct clksrc_clk clk_sclk_mmc1 = {
 494         .clk    = {
 495                 .name           = "sclk_mmc",
 496                 .devname        = "s3c-sdhci.1",
 497                 .ctrlbit        = (1 << 25),
 498                 .enable         = s5p64x0_sclk_ctrl,
 499         },
 500         .sources = &clkset_group2,
 501         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
 502         .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
 503 };
 504
 505 static struct clksrc_clk clk_sclk_mmc2 = {
 506         .clk    = {
 507                 .name           = "sclk_mmc",
 508                 .devname        = "s3c-sdhci.2",
 509                 .ctrlbit        = (1 << 26),
 510                 .enable         = s5p64x0_sclk_ctrl,
 511         },
 512         .sources = &clkset_group2,
 513         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
 514         .reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
 515 };
 516
 517 static struct clksrc_clk clk_sclk_uclk = {
 518         .clk    = {
 519                 .name           = "uclk1",
 520                 .ctrlbit        = (1 << 5),
 521                 .enable         = s5p64x0_sclk_ctrl,
 522         },
 523         .sources = &clkset_uart,
 524         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
 525         .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
 526 };
 527
 528 static struct clksrc_clk clk_sclk_spi0 = {
 529         .clk    = {
 530                 .name           = "sclk_spi",
 531                 .devname        = "s5p64x0-spi.0",
 532                 .ctrlbit        = (1 << 20),
 533                 .enable         = s5p64x0_sclk_ctrl,
 534         },
 535         .sources = &clkset_group2,
 536         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
 537         .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
 538 };
 539
 540 static struct clksrc_clk clk_sclk_spi1 = {
 541         .clk    = {
 542                 .name           = "sclk_spi",
 543                 .devname        = "s5p64x0-spi.1",
 544                 .ctrlbit        = (1 << 21),
 545                 .enable         = s5p64x0_sclk_ctrl,
 546         },
 547         .sources = &clkset_group2,
 548         .reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
 549         .reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
 550 };
 551
 552 static struct clksrc_clk *clksrc_cdev[] = {
 553         &clk_sclk_uclk,
 554         &clk_sclk_spi0,
 555         &clk_sclk_spi1,
 556         &clk_sclk_mmc0,
 557         &clk_sclk_mmc1,
 558         &clk_sclk_mmc2,
 559 };
 560
 561 static struct clk_lookup s5p6450_clk_lookup[] = {
 562         CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_pclk_low.clk),
 563         CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
 564         CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
 565         CLKDEV_INIT("s5p64x0-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
 566         CLKDEV_INIT("s5p64x0-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
 567         CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
 568         CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
 569         CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
 570 };
 571
 572 /* Clock initialization code */
 573 static struct clksrc_clk *sysclks[] = {
 574         &clk_mout_apll,
 575         &clk_mout_epll,
 576         &clk_dout_epll,
 577         &clk_mout_mpll,
 578         &clk_dout_mpll,
 579         &clk_armclk,
 580         &clk_mout_hclk_sel,
 581         &clk_dout_pwm_ratio0,
 582         &clk_pclk_to_wdt_pwm,
 583         &clk_hclk,
 584         &clk_pclk,
 585         &clk_hclk_low,
 586         &clk_pclk_low,
 587         &clk_sclk_audio0,
 588 };
 589
 590 static struct clk dummy_apb_pclk = {
 591         .name           = "apb_pclk",
 592         .id             = -1,
 593 };
 594
 595 void __init_or_cpufreq s5p6450_setup_clocks(void)
 596 {
 597         struct clk *xtal_clk;
 598
 599         unsigned long xtal;
 600         unsigned long fclk;
 601         unsigned long hclk;
 602         unsigned long hclk_low;
 603         unsigned long pclk;
 604         unsigned long pclk_low;
 605
 606         unsigned long apll;
 607         unsigned long mpll;
 608         unsigned long epll;
 609         unsigned long dpll;
 610         unsigned int ptr;
 611
 612         /* Set S5P6450 functions for clk_fout_epll */
 613
 614         clk_fout_epll.enable = s5p_epll_enable;
 615         clk_fout_epll.ops = &s5p6450_epll_ops;
 616
 617         clk_48m.enable = s5p64x0_clk48m_ctrl;
 618
 619         xtal_clk = clk_get(NULL, "ext_xtal");
 620         BUG_ON(IS_ERR(xtal_clk));
 621
 622         xtal = clk_get_rate(xtal_clk);
 623         clk_put(xtal_clk);
 624
 625         apll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_APLL_CON), pll_4502);
 626         mpll = s5p_get_pll45xx(xtal, __raw_readl(S5P64X0_MPLL_CON), pll_4502);
 627         epll = s5p_get_pll90xx(xtal, __raw_readl(S5P64X0_EPLL_CON),
 628                                 __raw_readl(S5P64X0_EPLL_CON_K));
 629         dpll = s5p_get_pll46xx(xtal, __raw_readl(S5P6450_DPLL_CON),
 630                                 __raw_readl(S5P6450_DPLL_CON_K), pll_4650c);
 631
 632         clk_fout_apll.rate = apll;
 633         clk_fout_mpll.rate = mpll;
 634         clk_fout_epll.rate = epll;
 635         clk_fout_dpll.rate = dpll;
 636
 637         printk(KERN_INFO "S5P6450: PLL settings, A=%ld.%ldMHz, M=%ld.%ldMHz," \
 638                         " E=%ld.%ldMHz, D=%ld.%ldMHz\n",
 639                         print_mhz(apll), print_mhz(mpll), print_mhz(epll),
 640                         print_mhz(dpll));
 641
 642         fclk = clk_get_rate(&clk_armclk.clk);
 643         hclk = clk_get_rate(&clk_hclk.clk);
 644         pclk = clk_get_rate(&clk_pclk.clk);
 645         hclk_low = clk_get_rate(&clk_hclk_low.clk);
 646         pclk_low = clk_get_rate(&clk_pclk_low.clk);
 647
 648         printk(KERN_INFO "S5P6450: HCLK=%ld.%ldMHz, HCLK_LOW=%ld.%ldMHz," \
 649                         " PCLK=%ld.%ldMHz, PCLK_LOW=%ld.%ldMHz\n",
 650                         print_mhz(hclk), print_mhz(hclk_low),
 651                         print_mhz(pclk), print_mhz(pclk_low));
 652
 653         clk_f.rate = fclk;
 654         clk_h.rate = hclk;
 655         clk_p.rate = pclk;
 656
 657         for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
 658                 s3c_set_clksrc(&clksrcs[ptr], true);
 659 }
 660
 661 void __init s5p6450_register_clocks(void)
 662 {
 663         int ptr;
 664
 665         for (ptr = 0; ptr < ARRAY_SIZE(sysclks); ptr++)
 666                 s3c_register_clksrc(sysclks[ptr], 1);
 667
 668         s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 669         s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
 670         for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
 671                 s3c_register_clksrc(clksrc_cdev[ptr], 1);
 672
 673         s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 674         s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 675         clkdev_add_table(s5p6450_clk_lookup, ARRAY_SIZE(s5p6450_clk_lookup));
 676
 677         s3c24xx_register_clock(&dummy_apb_pclk);
 678
 679         s3c_pwmclk_init();
 680 }