arch/arm/mach-shmobile/clock-sh7372.c

   1 /*
   2  * SH7372 clock framework support
   3  *
   4  * Copyright (C) 2010 Magnus Damm
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19 #include <linux/init.h>
  20 #include <linux/kernel.h>
  21 #include <linux/io.h>
  22 #include <linux/sh_clk.h>
  23 #include <linux/clkdev.h>
  24 #include <mach/common.h>
  25
  26 /* SH7372 registers */
  27 #define FRQCRA          0xe6150000
  28 #define FRQCRB          0xe6150004
  29 #define FRQCRC          0xe61500e0
  30 #define FRQCRD          0xe61500e4
  31 #define VCLKCR1         0xe6150008
  32 #define VCLKCR2         0xe615000c
  33 #define VCLKCR3         0xe615001c
  34 #define FMSICKCR        0xe6150010
  35 #define FMSOCKCR        0xe6150014
  36 #define FSIACKCR        0xe6150018
  37 #define FSIBCKCR        0xe6150090
  38 #define SUBCKCR         0xe6150080
  39 #define SPUCKCR         0xe6150084
  40 #define VOUCKCR         0xe6150088
  41 #define HDMICKCR        0xe6150094
  42 #define DSITCKCR        0xe6150060
  43 #define DSI0PCKCR       0xe6150064
  44 #define DSI1PCKCR       0xe6150098
  45 #define PLLC01CR        0xe6150028
  46 #define PLLC2CR         0xe615002c
  47 #define RMSTPCR0        0xe6150110
  48 #define RMSTPCR1        0xe6150114
  49 #define RMSTPCR2        0xe6150118
  50 #define RMSTPCR3        0xe615011c
  51 #define RMSTPCR4        0xe6150120
  52 #define SMSTPCR0        0xe6150130
  53 #define SMSTPCR1        0xe6150134
  54 #define SMSTPCR2        0xe6150138
  55 #define SMSTPCR3        0xe615013c
  56 #define SMSTPCR4        0xe6150140
  57
  58 #define FSIDIVA         0xFE1F8000
  59 #define FSIDIVB         0xFE1F8008
  60
  61 /* Platforms must set frequency on their DV_CLKI pin */
  62 struct clk sh7372_dv_clki_clk = {
  63 };
  64
  65 /* Fixed 32 KHz root clock from EXTALR pin */
  66 static struct clk r_clk = {
  67         .rate           = 32768,
  68 };
  69
  70 /*
  71  * 26MHz default rate for the EXTAL1 root input clock.
  72  * If needed, reset this with clk_set_rate() from the platform code.
  73  */
  74 struct clk sh7372_extal1_clk = {
  75         .rate           = 26000000,
  76 };
  77
  78 /*
  79  * 48MHz default rate for the EXTAL2 root input clock.
  80  * If needed, reset this with clk_set_rate() from the platform code.
  81  */
  82 struct clk sh7372_extal2_clk = {
  83         .rate           = 48000000,
  84 };
  85
  86 /* A fixed divide-by-2 block */
  87 static unsigned long div2_recalc(struct clk *clk)
  88 {
  89         return clk->parent->rate / 2;
  90 }
  91
  92 static struct clk_ops div2_clk_ops = {
  93         .recalc         = div2_recalc,
  94 };
  95
  96 /* Divide dv_clki by two */
  97 struct clk sh7372_dv_clki_div2_clk = {
  98         .ops            = &div2_clk_ops,
  99         .parent         = &sh7372_dv_clki_clk,
 100 };
 101
 102 /* Divide extal1 by two */
 103 static struct clk extal1_div2_clk = {
 104         .ops            = &div2_clk_ops,
 105         .parent         = &sh7372_extal1_clk,
 106 };
 107
 108 /* Divide extal2 by two */
 109 static struct clk extal2_div2_clk = {
 110         .ops            = &div2_clk_ops,
 111         .parent         = &sh7372_extal2_clk,
 112 };
 113
 114 /* Divide extal2 by four */
 115 static struct clk extal2_div4_clk = {
 116         .ops            = &div2_clk_ops,
 117         .parent         = &extal2_div2_clk,
 118 };
 119
 120 /* PLLC0 and PLLC1 */
 121 static unsigned long pllc01_recalc(struct clk *clk)
 122 {
 123         unsigned long mult = 1;
 124
 125         if (__raw_readl(PLLC01CR) & (1 << 14))
 126                 mult = (((__raw_readl(clk->enable_reg) >> 24) & 0x3f) + 1) * 2;
 127
 128         return clk->parent->rate * mult;
 129 }
 130
 131 static struct clk_ops pllc01_clk_ops = {
 132         .recalc         = pllc01_recalc,
 133 };
 134
 135 static struct clk pllc0_clk = {
 136         .ops            = &pllc01_clk_ops,
 137         .flags          = CLK_ENABLE_ON_INIT,
 138         .parent         = &extal1_div2_clk,
 139         .enable_reg     = (void __iomem *)FRQCRC,
 140 };
 141
 142 static struct clk pllc1_clk = {
 143         .ops            = &pllc01_clk_ops,
 144         .flags          = CLK_ENABLE_ON_INIT,
 145         .parent         = &extal1_div2_clk,
 146         .enable_reg     = (void __iomem *)FRQCRA,
 147 };
 148
 149 /* Divide PLLC1 by two */
 150 static struct clk pllc1_div2_clk = {
 151         .ops            = &div2_clk_ops,
 152         .parent         = &pllc1_clk,
 153 };
 154
 155 /* PLLC2 */
 156
 157 /* Indices are important - they are the actual src selecting values */
 158 static struct clk *pllc2_parent[] = {
 159         [0] = &extal1_div2_clk,
 160         [1] = &extal2_div2_clk,
 161         [2] = &sh7372_dv_clki_div2_clk,
 162 };
 163
 164 /* Only multipliers 20 * 2 to 46 * 2 are valid, last entry for CPUFREQ_TABLE_END */
 165 static struct cpufreq_frequency_table pllc2_freq_table[29];
 166
 167 static void pllc2_table_rebuild(struct clk *clk)
 168 {
 169         int i;
 170
 171         /* Initialise PLLC2 frequency table */
 172         for (i = 0; i < ARRAY_SIZE(pllc2_freq_table) - 2; i++) {
 173                 pllc2_freq_table[i].frequency = clk->parent->rate * (i + 20) * 2;
 174                 pllc2_freq_table[i].index = i;
 175         }
 176
 177         /* This is a special entry - switching PLL off makes it a repeater */
 178         pllc2_freq_table[i].frequency = clk->parent->rate;
 179         pllc2_freq_table[i].index = i;
 180
 181         pllc2_freq_table[++i].frequency = CPUFREQ_TABLE_END;
 182         pllc2_freq_table[i].index = i;
 183 }
 184
 185 static unsigned long pllc2_recalc(struct clk *clk)
 186 {
 187         unsigned long mult = 1;
 188
 189         pllc2_table_rebuild(clk);
 190
 191         /*
 192          * If the PLL is off, mult == 1, clk->rate will be updated in
 193          * pllc2_enable().
 194          */
 195         if (__raw_readl(PLLC2CR) & (1 << 31))
 196                 mult = (((__raw_readl(PLLC2CR) >> 24) & 0x3f) + 1) * 2;
 197
 198         return clk->parent->rate * mult;
 199 }
 200
 201 static long pllc2_round_rate(struct clk *clk, unsigned long rate)
 202 {
 203         return clk_rate_table_round(clk, clk->freq_table, rate);
 204 }
 205
 206 static int pllc2_enable(struct clk *clk)
 207 {
 208         int i;
 209
 210         __raw_writel(__raw_readl(PLLC2CR) | 0x80000000, PLLC2CR);
 211
 212         for (i = 0; i < 100; i++)
 213                 if (__raw_readl(PLLC2CR) & 0x80000000) {
 214                         clk->rate = pllc2_recalc(clk);
 215                         return 0;
 216                 }
 217
 218         pr_err("%s(): timeout!\n", __func__);
 219
 220         return -ETIMEDOUT;
 221 }
 222
 223 static void pllc2_disable(struct clk *clk)
 224 {
 225         __raw_writel(__raw_readl(PLLC2CR) & ~0x80000000, PLLC2CR);
 226 }
 227
 228 static int pllc2_set_rate(struct clk *clk, unsigned long rate)
 229 {
 230         unsigned long value;
 231         int idx;
 232
 233         idx = clk_rate_table_find(clk, clk->freq_table, rate);
 234         if (idx < 0)
 235                 return idx;
 236
 237         if (rate == clk->parent->rate)
 238                 return -EINVAL;
 239
 240         value = __raw_readl(PLLC2CR) & ~(0x3f << 24);
 241
 242         __raw_writel(value | ((idx + 19) << 24), PLLC2CR);
 243
 244         clk->rate = clk->freq_table[idx].frequency;
 245
 246         return 0;
 247 }
 248
 249 static int pllc2_set_parent(struct clk *clk, struct clk *parent)
 250 {
 251         u32 value;
 252         int ret, i;
 253
 254         if (!clk->parent_table || !clk->parent_num)
 255                 return -EINVAL;
 256
 257         /* Search the parent */
 258         for (i = 0; i < clk->parent_num; i++)
 259                 if (clk->parent_table[i] == parent)
 260                         break;
 261
 262         if (i == clk->parent_num)
 263                 return -ENODEV;
 264
 265         ret = clk_reparent(clk, parent);
 266         if (ret < 0)
 267                 return ret;
 268
 269         value = __raw_readl(PLLC2CR) & ~(3 << 6);
 270
 271         __raw_writel(value | (i << 6), PLLC2CR);
 272
 273         /* Rebiuld the frequency table */
 274         pllc2_table_rebuild(clk);
 275
 276         return 0;
 277 }
 278
 279 static struct clk_ops pllc2_clk_ops = {
 280         .recalc         = pllc2_recalc,
 281         .round_rate     = pllc2_round_rate,
 282         .set_rate       = pllc2_set_rate,
 283         .enable         = pllc2_enable,
 284         .disable        = pllc2_disable,
 285         .set_parent     = pllc2_set_parent,
 286 };
 287
 288 struct clk sh7372_pllc2_clk = {
 289         .ops            = &pllc2_clk_ops,
 290         .parent         = &extal1_div2_clk,
 291         .freq_table     = pllc2_freq_table,
 292         .nr_freqs       = ARRAY_SIZE(pllc2_freq_table) - 1,
 293         .parent_table   = pllc2_parent,
 294         .parent_num     = ARRAY_SIZE(pllc2_parent),
 295 };
 296
 297 /* External input clock (pin name: FSIACK/FSIBCK ) */
 298 struct clk sh7372_fsiack_clk = {
 299 };
 300
 301 struct clk sh7372_fsibck_clk = {
 302 };
 303
 304 static struct clk *main_clks[] = {
 305         &sh7372_dv_clki_clk,
 306         &r_clk,
 307         &sh7372_extal1_clk,
 308         &sh7372_extal2_clk,
 309         &sh7372_dv_clki_div2_clk,
 310         &extal1_div2_clk,
 311         &extal2_div2_clk,
 312         &extal2_div4_clk,
 313         &pllc0_clk,
 314         &pllc1_clk,
 315         &pllc1_div2_clk,
 316         &sh7372_pllc2_clk,
 317         &sh7372_fsiack_clk,
 318         &sh7372_fsibck_clk,
 319 };
 320
 321 static void div4_kick(struct clk *clk)
 322 {
 323         unsigned long value;
 324
 325         /* set KICK bit in FRQCRB to update hardware setting */
 326         value = __raw_readl(FRQCRB);
 327         value |= (1 << 31);
 328         __raw_writel(value, FRQCRB);
 329 }
 330
 331 static int divisors[] = { 2, 3, 4, 6, 8, 12, 16, 18,
 332                           24, 32, 36, 48, 0, 72, 96, 0 };
 333
 334 static struct clk_div_mult_table div4_div_mult_table = {
 335         .divisors = divisors,
 336         .nr_divisors = ARRAY_SIZE(divisors),
 337 };
 338
 339 static struct clk_div4_table div4_table = {
 340         .div_mult_table = &div4_div_mult_table,
 341         .kick = div4_kick,
 342 };
 343
 344 enum { DIV4_I, DIV4_ZG, DIV4_B, DIV4_M1, DIV4_CSIR,
 345        DIV4_ZTR, DIV4_ZT, DIV4_ZX, DIV4_HP,
 346        DIV4_ISPB, DIV4_S, DIV4_ZB, DIV4_ZB3, DIV4_CP,
 347        DIV4_DDRP, DIV4_NR };
 348
 349 #define DIV4(_reg, _bit, _mask, _flags) \
 350   SH_CLK_DIV4(&pllc1_clk, _reg, _bit, _mask, _flags)
 351
 352 static struct clk div4_clks[DIV4_NR] = {
 353         [DIV4_I] = DIV4(FRQCRA, 20, 0x6fff, CLK_ENABLE_ON_INIT),
 354         [DIV4_ZG] = DIV4(FRQCRA, 16, 0x6fff, CLK_ENABLE_ON_INIT),
 355         [DIV4_B] = DIV4(FRQCRA, 8, 0x6fff, CLK_ENABLE_ON_INIT),
 356         [DIV4_M1] = DIV4(FRQCRA, 4, 0x6fff, CLK_ENABLE_ON_INIT),
 357         [DIV4_CSIR] = DIV4(FRQCRA, 0, 0x6fff, 0),
 358         [DIV4_ZTR] = DIV4(FRQCRB, 20, 0x6fff, 0),
 359         [DIV4_ZT] = DIV4(FRQCRB, 16, 0x6fff, 0),
 360         [DIV4_ZX] = DIV4(FRQCRB, 12, 0x6fff, 0),
 361         [DIV4_HP] = DIV4(FRQCRB, 4, 0x6fff, 0),
 362         [DIV4_ISPB] = DIV4(FRQCRC, 20, 0x6fff, 0),
 363         [DIV4_S] = DIV4(FRQCRC, 12, 0x6fff, 0),
 364         [DIV4_ZB] = DIV4(FRQCRC, 8, 0x6fff, 0),
 365         [DIV4_ZB3] = DIV4(FRQCRC, 4, 0x6fff, 0),
 366         [DIV4_CP] = DIV4(FRQCRC, 0, 0x6fff, 0),
 367         [DIV4_DDRP] = DIV4(FRQCRD, 0, 0x677c, 0),
 368 };
 369
 370 enum { DIV6_VCK1, DIV6_VCK2, DIV6_VCK3, DIV6_FMSI, DIV6_FMSO,
 371        DIV6_SUB, DIV6_SPU,
 372        DIV6_VOU, DIV6_DSIT, DIV6_DSI0P, DIV6_DSI1P,
 373        DIV6_NR };
 374
 375 static struct clk div6_clks[DIV6_NR] = {
 376         [DIV6_VCK1] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR1, 0),
 377         [DIV6_VCK2] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR2, 0),
 378         [DIV6_VCK3] = SH_CLK_DIV6(&pllc1_div2_clk, VCLKCR3, 0),
 379         [DIV6_FMSI] = SH_CLK_DIV6(&pllc1_div2_clk, FMSICKCR, 0),
 380         [DIV6_FMSO] = SH_CLK_DIV6(&pllc1_div2_clk, FMSOCKCR, 0),
 381         [DIV6_SUB] = SH_CLK_DIV6(&sh7372_extal2_clk, SUBCKCR, 0),
 382         [DIV6_SPU] = SH_CLK_DIV6(&pllc1_div2_clk, SPUCKCR, 0),
 383         [DIV6_VOU] = SH_CLK_DIV6(&pllc1_div2_clk, VOUCKCR, 0),
 384         [DIV6_DSIT] = SH_CLK_DIV6(&pllc1_div2_clk, DSITCKCR, 0),
 385         [DIV6_DSI0P] = SH_CLK_DIV6(&pllc1_div2_clk, DSI0PCKCR, 0),
 386         [DIV6_DSI1P] = SH_CLK_DIV6(&pllc1_div2_clk, DSI1PCKCR, 0),
 387 };
 388
 389 enum { DIV6_HDMI, DIV6_FSIA, DIV6_FSIB, DIV6_REPARENT_NR };
 390
 391 /* Indices are important - they are the actual src selecting values */
 392 static struct clk *hdmi_parent[] = {
 393         [0] = &pllc1_div2_clk,
 394         [1] = &sh7372_pllc2_clk,
 395         [2] = &sh7372_dv_clki_clk,
 396         [3] = NULL,     /* pllc2_div4 not implemented yet */
 397 };
 398
 399 static struct clk *fsiackcr_parent[] = {
 400         [0] = &pllc1_div2_clk,
 401         [1] = &sh7372_pllc2_clk,
 402         [2] = &sh7372_fsiack_clk, /* external input for FSI A */
 403         [3] = NULL,     /* setting prohibited */
 404 };
 405
 406 static struct clk *fsibckcr_parent[] = {
 407         [0] = &pllc1_div2_clk,
 408         [1] = &sh7372_pllc2_clk,
 409         [2] = &sh7372_fsibck_clk, /* external input for FSI B */
 410         [3] = NULL,     /* setting prohibited */
 411 };
 412
 413 static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
 414         [DIV6_HDMI] = SH_CLK_DIV6_EXT(HDMICKCR, 0,
 415                                       hdmi_parent, ARRAY_SIZE(hdmi_parent), 6, 2),
 416         [DIV6_FSIA] = SH_CLK_DIV6_EXT(FSIACKCR, 0,
 417                                       fsiackcr_parent, ARRAY_SIZE(fsiackcr_parent), 6, 2),
 418         [DIV6_FSIB] = SH_CLK_DIV6_EXT(FSIBCKCR, 0,
 419                                       fsibckcr_parent, ARRAY_SIZE(fsibckcr_parent), 6, 2),
 420 };
 421
 422 /* FSI DIV */
 423 static unsigned long fsidiv_recalc(struct clk *clk)
 424 {
 425         unsigned long value;
 426
 427         value = __raw_readl(clk->mapping->base);
 428
 429         value >>= 16;
 430         if (value < 2)
 431                 return 0;
 432
 433         return clk->parent->rate / value;
 434 }
 435
 436 static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
 437 {
 438         return clk_rate_div_range_round(clk, 2, 0xffff, rate);
 439 }
 440
 441 static void fsidiv_disable(struct clk *clk)
 442 {
 443         __raw_writel(0, clk->mapping->base);
 444 }
 445
 446 static int fsidiv_enable(struct clk *clk)
 447 {
 448         unsigned long value;
 449
 450         value  = __raw_readl(clk->mapping->base) >> 16;
 451         if (value < 2)
 452                 return -EIO;
 453
 454         __raw_writel((value << 16) | 0x3, clk->mapping->base);
 455
 456         return 0;
 457 }
 458
 459 static int fsidiv_set_rate(struct clk *clk, unsigned long rate)
 460 {
 461         int idx;
 462
 463         idx = (clk->parent->rate / rate) & 0xffff;
 464         if (idx < 2)
 465                 return -EINVAL;
 466
 467         __raw_writel(idx << 16, clk->mapping->base);
 468         return 0;
 469 }
 470
 471 static struct clk_ops fsidiv_clk_ops = {
 472         .recalc         = fsidiv_recalc,
 473         .round_rate     = fsidiv_round_rate,
 474         .set_rate       = fsidiv_set_rate,
 475         .enable         = fsidiv_enable,
 476         .disable        = fsidiv_disable,
 477 };
 478
 479 static struct clk_mapping fsidiva_clk_mapping = {
 480         .phys   = FSIDIVA,
 481         .len    = 8,
 482 };
 483
 484 struct clk sh7372_fsidiva_clk = {
 485         .ops            = &fsidiv_clk_ops,
 486         .parent         = &div6_reparent_clks[DIV6_FSIA], /* late install */
 487         .mapping        = &fsidiva_clk_mapping,
 488 };
 489
 490 static struct clk_mapping fsidivb_clk_mapping = {
 491         .phys   = FSIDIVB,
 492         .len    = 8,
 493 };
 494
 495 struct clk sh7372_fsidivb_clk = {
 496         .ops            = &fsidiv_clk_ops,
 497         .parent         = &div6_reparent_clks[DIV6_FSIB],  /* late install */
 498         .mapping        = &fsidivb_clk_mapping,
 499 };
 500
 501 static struct clk *late_main_clks[] = {
 502         &sh7372_fsidiva_clk,
 503         &sh7372_fsidivb_clk,
 504 };
 505
 506 enum { MSTP001, MSTP000,
 507        MSTP131, MSTP130,
 508        MSTP129, MSTP128, MSTP127, MSTP126, MSTP125,
 509        MSTP118, MSTP117, MSTP116, MSTP113,
 510        MSTP106, MSTP101, MSTP100,
 511        MSTP223,
 512        MSTP218, MSTP217, MSTP216, MSTP214, MSTP208, MSTP207,
 513        MSTP206, MSTP205, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200,
 514        MSTP328, MSTP323, MSTP322, MSTP314, MSTP313, MSTP312,
 515        MSTP423, MSTP415, MSTP413, MSTP411, MSTP410, MSTP407, MSTP406,
 516        MSTP405, MSTP404, MSTP403, MSTP400,
 517        MSTP_NR };
 518
 519 #define MSTP(_parent, _reg, _bit, _flags) \
 520   SH_CLK_MSTP32(_parent, _reg, _bit, _flags)
 521
 522 static struct clk mstp_clks[MSTP_NR] = {
 523         [MSTP001] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 1, 0), /* IIC2 */
 524         [MSTP000] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR0, 0, 0), /* MSIOF0 */
 525         [MSTP131] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 31, 0), /* VEU3 */
 526         [MSTP130] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 30, 0), /* VEU2 */
 527         [MSTP129] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 29, 0), /* VEU1 */
 528         [MSTP128] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 28, 0), /* VEU0 */
 529         [MSTP127] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 27, 0), /* CEU */
 530         [MSTP126] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 26, 0), /* CSI2 */
 531         [MSTP125] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 25, 0), /* TMU0 */
 532         [MSTP118] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 18, 0), /* DSITX */
 533         [MSTP117] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 17, 0), /* LCDC1 */
 534         [MSTP116] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 16, 0), /* IIC0 */
 535         [MSTP113] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR1, 13, 0), /* MERAM */
 536         [MSTP106] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 6, 0), /* JPU */
 537         [MSTP101] = MSTP(&div4_clks[DIV4_M1], SMSTPCR1, 1, 0), /* VPU */
 538         [MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */
 539         [MSTP223] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR2, 23, 0), /* SPU2 */
 540         [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* DMAC1 */
 541         [MSTP217] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 17, 0), /* DMAC2 */
 542         [MSTP216] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 16, 0), /* DMAC3 */
 543         [MSTP214] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 14, 0), /* USBDMAC */
 544         [MSTP208] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 8, 0), /* MSIOF1 */
 545         [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */
 546         [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */
 547         [MSTP205] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 5, 0), /* MSIOF2 */
 548         [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */
 549         [MSTP203] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 3, 0), /* SCIFA1 */
 550         [MSTP202] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 2, 0), /* SCIFA2 */
 551         [MSTP201] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 1, 0), /* SCIFA3 */
 552         [MSTP200] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 0, 0), /* SCIFA4 */
 553         [MSTP328] = MSTP(&div6_clks[DIV6_SPU], SMSTPCR3, 28, 0), /* FSI2 */
 554         [MSTP323] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 23, 0), /* IIC1 */
 555         [MSTP322] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 22, 0), /* USB0 */
 556         [MSTP314] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 14, 0), /* SDHI0 */
 557         [MSTP313] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 13, 0), /* SDHI1 */
 558         [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMC */
 559         [MSTP423] = MSTP(&div4_clks[DIV4_B], SMSTPCR4, 23, 0), /* DSITX1 */
 560         [MSTP415] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 15, 0), /* SDHI2 */
 561         [MSTP413] = MSTP(&pllc1_div2_clk, SMSTPCR4, 13, 0), /* HDMI */
 562         [MSTP411] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 11, 0), /* IIC3 */
 563         [MSTP410] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 10, 0), /* IIC4 */
 564         [MSTP407] = MSTP(&div4_clks[DIV4_HP], SMSTPCR4, 7, 0), /* USB-DMAC1 */
 565         [MSTP406] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR4, 6, 0), /* USB1 */
 566         [MSTP405] = MSTP(&r_clk, SMSTPCR4, 5, 0), /* CMT4 */
 567         [MSTP404] = MSTP(&r_clk, SMSTPCR4, 4, 0), /* CMT3 */
 568         [MSTP403] = MSTP(&r_clk, SMSTPCR4, 3, 0), /* KEYSC */
 569         [MSTP400] = MSTP(&r_clk, SMSTPCR4, 0, 0), /* CMT2 */
 570 };
 571
 572 static struct clk_lookup lookups[] = {
 573         /* main clocks */
 574         CLKDEV_CON_ID("dv_clki_div2_clk", &sh7372_dv_clki_div2_clk),
 575         CLKDEV_CON_ID("r_clk", &r_clk),
 576         CLKDEV_CON_ID("extal1", &sh7372_extal1_clk),
 577         CLKDEV_CON_ID("extal2", &sh7372_extal2_clk),
 578         CLKDEV_CON_ID("extal1_div2_clk", &extal1_div2_clk),
 579         CLKDEV_CON_ID("extal2_div2_clk", &extal2_div2_clk),
 580         CLKDEV_CON_ID("extal2_div4_clk", &extal2_div4_clk),
 581         CLKDEV_CON_ID("pllc0_clk", &pllc0_clk),
 582         CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
 583         CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
 584         CLKDEV_CON_ID("pllc2_clk", &sh7372_pllc2_clk),
 585
 586         /* DIV4 clocks */
 587         CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
 588         CLKDEV_CON_ID("zg_clk", &div4_clks[DIV4_ZG]),
 589         CLKDEV_CON_ID("b_clk", &div4_clks[DIV4_B]),
 590         CLKDEV_CON_ID("m1_clk", &div4_clks[DIV4_M1]),
 591         CLKDEV_CON_ID("csir_clk", &div4_clks[DIV4_CSIR]),
 592         CLKDEV_CON_ID("ztr_clk", &div4_clks[DIV4_ZTR]),
 593         CLKDEV_CON_ID("zt_clk", &div4_clks[DIV4_ZT]),
 594         CLKDEV_CON_ID("zx_clk", &div4_clks[DIV4_ZX]),
 595         CLKDEV_CON_ID("hp_clk", &div4_clks[DIV4_HP]),
 596         CLKDEV_CON_ID("ispb_clk", &div4_clks[DIV4_ISPB]),
 597         CLKDEV_CON_ID("s_clk", &div4_clks[DIV4_S]),
 598         CLKDEV_CON_ID("zb_clk", &div4_clks[DIV4_ZB]),
 599         CLKDEV_CON_ID("zb3_clk", &div4_clks[DIV4_ZB3]),
 600         CLKDEV_CON_ID("cp_clk", &div4_clks[DIV4_CP]),
 601         CLKDEV_CON_ID("ddrp_clk", &div4_clks[DIV4_DDRP]),
 602
 603         /* DIV6 clocks */
 604         CLKDEV_CON_ID("vck1_clk", &div6_clks[DIV6_VCK1]),
 605         CLKDEV_CON_ID("vck2_clk", &div6_clks[DIV6_VCK2]),
 606         CLKDEV_CON_ID("vck3_clk", &div6_clks[DIV6_VCK3]),
 607         CLKDEV_CON_ID("fmsi_clk", &div6_clks[DIV6_FMSI]),
 608         CLKDEV_CON_ID("fmso_clk", &div6_clks[DIV6_FMSO]),
 609         CLKDEV_CON_ID("sub_clk", &div6_clks[DIV6_SUB]),
 610         CLKDEV_CON_ID("spu_clk", &div6_clks[DIV6_SPU]),
 611         CLKDEV_CON_ID("vou_clk", &div6_clks[DIV6_VOU]),
 612         CLKDEV_CON_ID("hdmi_clk", &div6_reparent_clks[DIV6_HDMI]),
 613         CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSIT]),
 614         CLKDEV_ICK_ID("dsit_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSIT]),
 615         CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.0", &div6_clks[DIV6_DSI0P]),
 616         CLKDEV_ICK_ID("dsip_clk", "sh-mipi-dsi.1", &div6_clks[DIV6_DSI1P]),
 617
 618         /* MSTP32 clocks */
 619         CLKDEV_DEV_ID("i2c-sh_mobile.2", &mstp_clks[MSTP001]), /* IIC2 */
 620         CLKDEV_DEV_ID("spi_sh_msiof.0", &mstp_clks[MSTP000]), /* MSIOF0 */
 621         CLKDEV_DEV_ID("uio_pdrv_genirq.4", &mstp_clks[MSTP131]), /* VEU3 */
 622         CLKDEV_DEV_ID("uio_pdrv_genirq.3", &mstp_clks[MSTP130]), /* VEU2 */
 623         CLKDEV_DEV_ID("uio_pdrv_genirq.2", &mstp_clks[MSTP129]), /* VEU1 */
 624         CLKDEV_DEV_ID("uio_pdrv_genirq.1", &mstp_clks[MSTP128]), /* VEU0 */
 625         CLKDEV_DEV_ID("sh_mobile_ceu.0", &mstp_clks[MSTP127]), /* CEU */
 626         CLKDEV_DEV_ID("sh-mobile-csi2.0", &mstp_clks[MSTP126]), /* CSI2 */
 627         CLKDEV_DEV_ID("sh_tmu.0", &mstp_clks[MSTP125]), /* TMU00 */
 628         CLKDEV_DEV_ID("sh_tmu.1", &mstp_clks[MSTP125]), /* TMU01 */
 629         CLKDEV_DEV_ID("sh-mipi-dsi.0", &mstp_clks[MSTP118]), /* DSITX0 */
 630         CLKDEV_DEV_ID("sh_mobile_lcdc_fb.1", &mstp_clks[MSTP117]), /* LCDC1 */
 631         CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* IIC0 */
 632         CLKDEV_DEV_ID("sh_mobile_meram.0", &mstp_clks[MSTP113]), /* MERAM */
 633         CLKDEV_DEV_ID("uio_pdrv_genirq.5", &mstp_clks[MSTP106]), /* JPU */
 634         CLKDEV_DEV_ID("uio_pdrv_genirq.0", &mstp_clks[MSTP101]), /* VPU */
 635         CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */
 636         CLKDEV_DEV_ID("uio_pdrv_genirq.6", &mstp_clks[MSTP223]), /* SPU2DSP0 */
 637         CLKDEV_DEV_ID("uio_pdrv_genirq.7", &mstp_clks[MSTP223]), /* SPU2DSP1 */
 638         CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* DMAC1 */
 639         CLKDEV_DEV_ID("sh-dma-engine.1", &mstp_clks[MSTP217]), /* DMAC2 */
 640         CLKDEV_DEV_ID("sh-dma-engine.2", &mstp_clks[MSTP216]), /* DMAC3 */
 641         CLKDEV_DEV_ID("sh-dma-engine.3", &mstp_clks[MSTP214]), /* USB-DMAC0 */
 642         CLKDEV_DEV_ID("spi_sh_msiof.1", &mstp_clks[MSTP208]), /* MSIOF1 */
 643         CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */
 644         CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP206]), /* SCIFB */
 645         CLKDEV_DEV_ID("spi_sh_msiof.2", &mstp_clks[MSTP205]), /* MSIOF2 */
 646         CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
 647         CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
 648         CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP202]), /* SCIFA2 */
 649         CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP201]), /* SCIFA3 */
 650         CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP200]), /* SCIFA4 */
 651         CLKDEV_DEV_ID("sh_fsi2", &mstp_clks[MSTP328]), /* FSI2 */
 652         CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* IIC1 */
 653         CLKDEV_DEV_ID("r8a66597_hcd.0", &mstp_clks[MSTP322]), /* USB0 */
 654         CLKDEV_DEV_ID("r8a66597_udc.0", &mstp_clks[MSTP322]), /* USB0 */
 655         CLKDEV_DEV_ID("renesas_usbhs.0", &mstp_clks[MSTP322]), /* USB0 */
 656         CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */
 657         CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */
 658         CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMC */
 659         CLKDEV_DEV_ID("sh-mipi-dsi.1", &mstp_clks[MSTP423]), /* DSITX1 */
 660         CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP415]), /* SDHI2 */
 661         CLKDEV_DEV_ID("sh-mobile-hdmi", &mstp_clks[MSTP413]), /* HDMI */
 662         CLKDEV_DEV_ID("i2c-sh_mobile.3", &mstp_clks[MSTP411]), /* IIC3 */
 663         CLKDEV_DEV_ID("i2c-sh_mobile.4", &mstp_clks[MSTP410]), /* IIC4 */
 664         CLKDEV_DEV_ID("sh-dma-engine.4", &mstp_clks[MSTP407]), /* USB-DMAC1 */
 665         CLKDEV_DEV_ID("r8a66597_hcd.1", &mstp_clks[MSTP406]), /* USB1 */
 666         CLKDEV_DEV_ID("r8a66597_udc.1", &mstp_clks[MSTP406]), /* USB1 */
 667         CLKDEV_DEV_ID("renesas_usbhs.1", &mstp_clks[MSTP406]), /* USB1 */
 668         CLKDEV_DEV_ID("sh_cmt.4", &mstp_clks[MSTP405]), /* CMT4 */
 669         CLKDEV_DEV_ID("sh_cmt.3", &mstp_clks[MSTP404]), /* CMT3 */
 670         CLKDEV_DEV_ID("sh_keysc.0", &mstp_clks[MSTP403]), /* KEYSC */
 671         CLKDEV_DEV_ID("sh_cmt.2", &mstp_clks[MSTP400]), /* CMT2 */
 672
 673         CLKDEV_ICK_ID("hdmi", "sh_mobile_lcdc_fb.1",
 674                       &div6_reparent_clks[DIV6_HDMI]),
 675         CLKDEV_ICK_ID("ick", "sh-mobile-hdmi", &div6_reparent_clks[DIV6_HDMI]),
 676         CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]),
 677         CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]),
 678         CLKDEV_ICK_ID("spu2", "sh_fsi2", &mstp_clks[MSTP223]),
 679 };
 680
 681 void __init sh7372_clock_init(void)
 682 {
 683         int k, ret = 0;
 684
 685         /* make sure MSTP bits on the RT/SH4AL-DSP side are off */
 686         __raw_writel(0xe4ef8087, RMSTPCR0);
 687         __raw_writel(0xffffffff, RMSTPCR1);
 688         __raw_writel(0x37c7f7ff, RMSTPCR2);
 689         __raw_writel(0xffffffff, RMSTPCR3);
 690         __raw_writel(0xffe0fffd, RMSTPCR4);
 691
 692         for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
 693                 ret = clk_register(main_clks[k]);
 694
 695         if (!ret)
 696                 ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
 697
 698         if (!ret)
 699                 ret = sh_clk_div6_register(div6_clks, DIV6_NR);
 700
 701         if (!ret)
 702                 ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR);
 703
 704         if (!ret)
 705                 ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
 706
 707         for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
 708                 ret = clk_register(late_main_clks[k]);
 709
 710         clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 711
 712         if (!ret)
 713                 clk_init();
 714         else
 715                 panic("failed to setup sh7372 clocks\n");
 716
 717 }