drivers/clk/ingenic/jz4780-cgu.c

   1 /*
   2  * Ingenic JZ4780 SoC CGU driver
   3  *
   4  * Copyright (c) 2013-2015 Imagination Technologies
   5  * Author: Paul Burton <paul.burton@mips.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  */
  17
  18 #include <linux/clk-provider.h>
  19 #include <linux/delay.h>
  20 #include <linux/of.h>
  21 #include <dt-bindings/clock/jz4780-cgu.h>
  22 #include "cgu.h"
  23
  24 /* CGU register offsets */
  25 #define CGU_REG_CLOCKCONTROL    0x00
  26 #define CGU_REG_PLLCONTROL      0x0c
  27 #define CGU_REG_APLL            0x10
  28 #define CGU_REG_MPLL            0x14
  29 #define CGU_REG_EPLL            0x18
  30 #define CGU_REG_VPLL            0x1c
  31 #define CGU_REG_CLKGR0          0x20
  32 #define CGU_REG_OPCR            0x24
  33 #define CGU_REG_CLKGR1          0x28
  34 #define CGU_REG_DDRCDR          0x2c
  35 #define CGU_REG_VPUCDR          0x30
  36 #define CGU_REG_USBPCR          0x3c
  37 #define CGU_REG_USBRDT          0x40
  38 #define CGU_REG_USBVBFIL        0x44
  39 #define CGU_REG_USBPCR1         0x48
  40 #define CGU_REG_LP0CDR          0x54
  41 #define CGU_REG_I2SCDR          0x60
  42 #define CGU_REG_LP1CDR          0x64
  43 #define CGU_REG_MSC0CDR         0x68
  44 #define CGU_REG_UHCCDR          0x6c
  45 #define CGU_REG_SSICDR          0x74
  46 #define CGU_REG_CIMCDR          0x7c
  47 #define CGU_REG_PCMCDR          0x84
  48 #define CGU_REG_GPUCDR          0x88
  49 #define CGU_REG_HDMICDR         0x8c
  50 #define CGU_REG_MSC1CDR         0xa4
  51 #define CGU_REG_MSC2CDR         0xa8
  52 #define CGU_REG_BCHCDR          0xac
  53 #define CGU_REG_CLOCKSTATUS     0xd4
  54
  55 /* bits within the OPCR register */
  56 #define OPCR_SPENDN0            (1 << 7)
  57 #define OPCR_SPENDN1            (1 << 6)
  58
  59 /* bits within the USBPCR register */
  60 #define USBPCR_USB_MODE         BIT(31)
  61 #define USBPCR_IDPULLUP_MASK    (0x3 << 28)
  62 #define USBPCR_COMMONONN        BIT(25)
  63 #define USBPCR_VBUSVLDEXT       BIT(24)
  64 #define USBPCR_VBUSVLDEXTSEL    BIT(23)
  65 #define USBPCR_POR              BIT(22)
  66 #define USBPCR_OTG_DISABLE      BIT(20)
  67 #define USBPCR_COMPDISTUNE_MASK (0x7 << 17)
  68 #define USBPCR_OTGTUNE_MASK     (0x7 << 14)
  69 #define USBPCR_SQRXTUNE_MASK    (0x7 << 11)
  70 #define USBPCR_TXFSLSTUNE_MASK  (0xf << 7)
  71 #define USBPCR_TXPREEMPHTUNE    BIT(6)
  72 #define USBPCR_TXHSXVTUNE_MASK  (0x3 << 4)
  73 #define USBPCR_TXVREFTUNE_MASK  0xf
  74
  75 /* bits within the USBPCR1 register */
  76 #define USBPCR1_REFCLKSEL_SHIFT 26
  77 #define USBPCR1_REFCLKSEL_MASK  (0x3 << USBPCR1_REFCLKSEL_SHIFT)
  78 #define USBPCR1_REFCLKSEL_CORE  (0x2 << USBPCR1_REFCLKSEL_SHIFT)
  79 #define USBPCR1_REFCLKDIV_SHIFT 24
  80 #define USBPCR1_REFCLKDIV_MASK  (0x3 << USBPCR1_REFCLKDIV_SHIFT)
  81 #define USBPCR1_REFCLKDIV_19_2  (0x3 << USBPCR1_REFCLKDIV_SHIFT)
  82 #define USBPCR1_REFCLKDIV_48    (0x2 << USBPCR1_REFCLKDIV_SHIFT)
  83 #define USBPCR1_REFCLKDIV_24    (0x1 << USBPCR1_REFCLKDIV_SHIFT)
  84 #define USBPCR1_REFCLKDIV_12    (0x0 << USBPCR1_REFCLKDIV_SHIFT)
  85 #define USBPCR1_USB_SEL         BIT(28)
  86 #define USBPCR1_WORD_IF0        BIT(19)
  87 #define USBPCR1_WORD_IF1        BIT(18)
  88
  89 /* bits within the USBRDT register */
  90 #define USBRDT_VBFIL_LD_EN      BIT(25)
  91 #define USBRDT_USBRDT_MASK      0x7fffff
  92
  93 /* bits within the USBVBFIL register */
  94 #define USBVBFIL_IDDIGFIL_SHIFT 16
  95 #define USBVBFIL_IDDIGFIL_MASK  (0xffff << USBVBFIL_IDDIGFIL_SHIFT)
  96 #define USBVBFIL_USBVBFIL_MASK  (0xffff)
  97
  98 static struct ingenic_cgu *cgu;
  99
 100 static u8 jz4780_otg_phy_get_parent(struct clk_hw *hw)
 101 {
 102         /* we only use CLKCORE, revisit if that ever changes */
 103         return 0;
 104 }
 105
 106 static int jz4780_otg_phy_set_parent(struct clk_hw *hw, u8 idx)
 107 {
 108         unsigned long flags;
 109         u32 usbpcr1;
 110
 111         if (idx > 0)
 112                 return -EINVAL;
 113
 114         spin_lock_irqsave(&cgu->lock, flags);
 115
 116         usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
 117         usbpcr1 &= ~USBPCR1_REFCLKSEL_MASK;
 118         /* we only use CLKCORE */
 119         usbpcr1 |= USBPCR1_REFCLKSEL_CORE;
 120         writel(usbpcr1, cgu->base + CGU_REG_USBPCR1);
 121
 122         spin_unlock_irqrestore(&cgu->lock, flags);
 123         return 0;
 124 }
 125
 126 static unsigned long jz4780_otg_phy_recalc_rate(struct clk_hw *hw,
 127                                                 unsigned long parent_rate)
 128 {
 129         u32 usbpcr1;
 130         unsigned refclk_div;
 131
 132         usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
 133         refclk_div = usbpcr1 & USBPCR1_REFCLKDIV_MASK;
 134
 135         switch (refclk_div) {
 136         case USBPCR1_REFCLKDIV_12:
 137                 return 12000000;
 138
 139         case USBPCR1_REFCLKDIV_24:
 140                 return 24000000;
 141
 142         case USBPCR1_REFCLKDIV_48:
 143                 return 48000000;
 144
 145         case USBPCR1_REFCLKDIV_19_2:
 146                 return 19200000;
 147         }
 148
 149         BUG();
 150         return parent_rate;
 151 }
 152
 153 static long jz4780_otg_phy_round_rate(struct clk_hw *hw, unsigned long req_rate,
 154                                       unsigned long *parent_rate)
 155 {
 156         if (req_rate < 15600000)
 157                 return 12000000;
 158
 159         if (req_rate < 21600000)
 160                 return 19200000;
 161
 162         if (req_rate < 36000000)
 163                 return 24000000;
 164
 165         return 48000000;
 166 }
 167
 168 static int jz4780_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate,
 169                                    unsigned long parent_rate)
 170 {
 171         unsigned long flags;
 172         u32 usbpcr1, div_bits;
 173
 174         switch (req_rate) {
 175         case 12000000:
 176                 div_bits = USBPCR1_REFCLKDIV_12;
 177                 break;
 178
 179         case 19200000:
 180                 div_bits = USBPCR1_REFCLKDIV_19_2;
 181                 break;
 182
 183         case 24000000:
 184                 div_bits = USBPCR1_REFCLKDIV_24;
 185                 break;
 186
 187         case 48000000:
 188                 div_bits = USBPCR1_REFCLKDIV_48;
 189                 break;
 190
 191         default:
 192                 return -EINVAL;
 193         }
 194
 195         spin_lock_irqsave(&cgu->lock, flags);
 196
 197         usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
 198         usbpcr1 &= ~USBPCR1_REFCLKDIV_MASK;
 199         usbpcr1 |= div_bits;
 200         writel(usbpcr1, cgu->base + CGU_REG_USBPCR1);
 201
 202         spin_unlock_irqrestore(&cgu->lock, flags);
 203         return 0;
 204 }
 205
 206 static struct clk_ops jz4780_otg_phy_ops = {
 207         .get_parent = jz4780_otg_phy_get_parent,
 208         .set_parent = jz4780_otg_phy_set_parent,
 209
 210         .recalc_rate = jz4780_otg_phy_recalc_rate,
 211         .round_rate = jz4780_otg_phy_round_rate,
 212         .set_rate = jz4780_otg_phy_set_rate,
 213 };
 214
 215 static const s8 pll_od_encoding[16] = {
 216         0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
 217         0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
 218 };
 219
 220 static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = {
 221
 222         /* External clocks */
 223
 224         [JZ4780_CLK_EXCLK] = { "ext", CGU_CLK_EXT },
 225         [JZ4780_CLK_RTCLK] = { "rtc", CGU_CLK_EXT },
 226
 227         /* PLLs */
 228
 229 #define DEF_PLL(name) { \
 230         .reg = CGU_REG_ ## name, \
 231         .m_shift = 19, \
 232         .m_bits = 13, \
 233         .m_offset = 1, \
 234         .n_shift = 13, \
 235         .n_bits = 6, \
 236         .n_offset = 1, \
 237         .od_shift = 9, \
 238         .od_bits = 4, \
 239         .od_max = 16, \
 240         .od_encoding = pll_od_encoding, \
 241         .stable_bit = 6, \
 242         .bypass_bit = 1, \
 243         .enable_bit = 0, \
 244 }
 245
 246         [JZ4780_CLK_APLL] = {
 247                 "apll", CGU_CLK_PLL,
 248                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 249                 .pll = DEF_PLL(APLL),
 250         },
 251
 252         [JZ4780_CLK_MPLL] = {
 253                 "mpll", CGU_CLK_PLL,
 254                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 255                 .pll = DEF_PLL(MPLL),
 256         },
 257
 258         [JZ4780_CLK_EPLL] = {
 259                 "epll", CGU_CLK_PLL,
 260                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 261                 .pll = DEF_PLL(EPLL),
 262         },
 263
 264         [JZ4780_CLK_VPLL] = {
 265                 "vpll", CGU_CLK_PLL,
 266                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 267                 .pll = DEF_PLL(VPLL),
 268         },
 269
 270 #undef DEF_PLL
 271
 272         /* Custom (SoC-specific) OTG PHY */
 273
 274         [JZ4780_CLK_OTGPHY] = {
 275                 "otg_phy", CGU_CLK_CUSTOM,
 276                 .parents = { -1, -1, JZ4780_CLK_EXCLK, -1 },
 277                 .custom = { &jz4780_otg_phy_ops },
 278         },
 279
 280         /* Muxes & dividers */
 281
 282         [JZ4780_CLK_SCLKA] = {
 283                 "sclk_a", CGU_CLK_MUX,
 284                 .parents = { -1, JZ4780_CLK_APLL, JZ4780_CLK_EXCLK,
 285                              JZ4780_CLK_RTCLK },
 286                 .mux = { CGU_REG_CLOCKCONTROL, 30, 2 },
 287         },
 288
 289         [JZ4780_CLK_CPUMUX] = {
 290                 "cpumux", CGU_CLK_MUX,
 291                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 292                              JZ4780_CLK_EPLL },
 293                 .mux = { CGU_REG_CLOCKCONTROL, 28, 2 },
 294         },
 295
 296         [JZ4780_CLK_CPU] = {
 297                 "cpu", CGU_CLK_DIV,
 298                 .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
 299                 .div = { CGU_REG_CLOCKCONTROL, 0, 1, 4, 22, -1, -1 },
 300         },
 301
 302         [JZ4780_CLK_L2CACHE] = {
 303                 "l2cache", CGU_CLK_DIV,
 304                 .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
 305                 .div = { CGU_REG_CLOCKCONTROL, 4, 1, 4, -1, -1, -1 },
 306         },
 307
 308         [JZ4780_CLK_AHB0] = {
 309                 "ahb0", CGU_CLK_MUX | CGU_CLK_DIV,
 310                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 311                              JZ4780_CLK_EPLL },
 312                 .mux = { CGU_REG_CLOCKCONTROL, 26, 2 },
 313                 .div = { CGU_REG_CLOCKCONTROL, 8, 1, 4, 21, -1, -1 },
 314         },
 315
 316         [JZ4780_CLK_AHB2PMUX] = {
 317                 "ahb2_apb_mux", CGU_CLK_MUX,
 318                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 319                              JZ4780_CLK_RTCLK },
 320                 .mux = { CGU_REG_CLOCKCONTROL, 24, 2 },
 321         },
 322
 323         [JZ4780_CLK_AHB2] = {
 324                 "ahb2", CGU_CLK_DIV,
 325                 .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
 326                 .div = { CGU_REG_CLOCKCONTROL, 12, 1, 4, 20, -1, -1 },
 327         },
 328
 329         [JZ4780_CLK_PCLK] = {
 330                 "pclk", CGU_CLK_DIV,
 331                 .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
 332                 .div = { CGU_REG_CLOCKCONTROL, 16, 1, 4, 20, -1, -1 },
 333         },
 334
 335         [JZ4780_CLK_DDR] = {
 336                 "ddr", CGU_CLK_MUX | CGU_CLK_DIV,
 337                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
 338                 .mux = { CGU_REG_DDRCDR, 30, 2 },
 339                 .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 },
 340         },
 341
 342         [JZ4780_CLK_VPU] = {
 343                 "vpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 344                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 345                              JZ4780_CLK_EPLL, -1 },
 346                 .mux = { CGU_REG_VPUCDR, 30, 2 },
 347                 .div = { CGU_REG_VPUCDR, 0, 1, 4, 29, 28, 27 },
 348                 .gate = { CGU_REG_CLKGR1, 2 },
 349         },
 350
 351         [JZ4780_CLK_I2SPLL] = {
 352                 "i2s_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 353                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_EPLL, -1, -1 },
 354                 .mux = { CGU_REG_I2SCDR, 30, 1 },
 355                 .div = { CGU_REG_I2SCDR, 0, 1, 8, 29, 28, 27 },
 356         },
 357
 358         [JZ4780_CLK_I2S] = {
 359                 "i2s", CGU_CLK_MUX,
 360                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_I2SPLL, -1, -1 },
 361                 .mux = { CGU_REG_I2SCDR, 31, 1 },
 362         },
 363
 364         [JZ4780_CLK_LCD0PIXCLK] = {
 365                 "lcd0pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
 366                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 367                              JZ4780_CLK_VPLL, -1 },
 368                 .mux = { CGU_REG_LP0CDR, 30, 2 },
 369                 .div = { CGU_REG_LP0CDR, 0, 1, 8, 28, 27, 26 },
 370         },
 371
 372         [JZ4780_CLK_LCD1PIXCLK] = {
 373                 "lcd1pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
 374                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 375                              JZ4780_CLK_VPLL, -1 },
 376                 .mux = { CGU_REG_LP1CDR, 30, 2 },
 377                 .div = { CGU_REG_LP1CDR, 0, 1, 8, 28, 27, 26 },
 378         },
 379
 380         [JZ4780_CLK_MSCMUX] = {
 381                 "msc_mux", CGU_CLK_MUX,
 382                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
 383                 .mux = { CGU_REG_MSC0CDR, 30, 2 },
 384         },
 385
 386         [JZ4780_CLK_MSC0] = {
 387                 "msc0", CGU_CLK_DIV | CGU_CLK_GATE,
 388                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 389                 .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 },
 390                 .gate = { CGU_REG_CLKGR0, 3 },
 391         },
 392
 393         [JZ4780_CLK_MSC1] = {
 394                 "msc1", CGU_CLK_DIV | CGU_CLK_GATE,
 395                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 396                 .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 },
 397                 .gate = { CGU_REG_CLKGR0, 11 },
 398         },
 399
 400         [JZ4780_CLK_MSC2] = {
 401                 "msc2", CGU_CLK_DIV | CGU_CLK_GATE,
 402                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 403                 .div = { CGU_REG_MSC2CDR, 0, 2, 8, 29, 28, 27 },
 404                 .gate = { CGU_REG_CLKGR0, 12 },
 405         },
 406
 407         [JZ4780_CLK_UHC] = {
 408                 "uhc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 409                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 410                              JZ4780_CLK_EPLL, JZ4780_CLK_OTGPHY },
 411                 .mux = { CGU_REG_UHCCDR, 30, 2 },
 412                 .div = { CGU_REG_UHCCDR, 0, 1, 8, 29, 28, 27 },
 413                 .gate = { CGU_REG_CLKGR0, 24 },
 414         },
 415
 416         [JZ4780_CLK_SSIPLL] = {
 417                 "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 418                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
 419                 .mux = { CGU_REG_SSICDR, 30, 1 },
 420                 .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 },
 421         },
 422
 423         [JZ4780_CLK_SSI] = {
 424                 "ssi", CGU_CLK_MUX,
 425                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_SSIPLL, -1, -1 },
 426                 .mux = { CGU_REG_SSICDR, 31, 1 },
 427         },
 428
 429         [JZ4780_CLK_CIMMCLK] = {
 430                 "cim_mclk", CGU_CLK_MUX | CGU_CLK_DIV,
 431                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
 432                 .mux = { CGU_REG_CIMCDR, 31, 1 },
 433                 .div = { CGU_REG_CIMCDR, 0, 1, 8, 30, 29, 28 },
 434         },
 435
 436         [JZ4780_CLK_PCMPLL] = {
 437                 "pcm_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 438                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 439                              JZ4780_CLK_EPLL, JZ4780_CLK_VPLL },
 440                 .mux = { CGU_REG_PCMCDR, 29, 2 },
 441                 .div = { CGU_REG_PCMCDR, 0, 1, 8, 28, 27, 26 },
 442         },
 443
 444         [JZ4780_CLK_PCM] = {
 445                 "pcm", CGU_CLK_MUX | CGU_CLK_GATE,
 446                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_PCMPLL, -1, -1 },
 447                 .mux = { CGU_REG_PCMCDR, 31, 1 },
 448                 .gate = { CGU_REG_CLKGR1, 3 },
 449         },
 450
 451         [JZ4780_CLK_GPU] = {
 452                 "gpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 453                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 454                              JZ4780_CLK_EPLL },
 455                 .mux = { CGU_REG_GPUCDR, 30, 2 },
 456                 .div = { CGU_REG_GPUCDR, 0, 1, 4, 29, 28, 27 },
 457                 .gate = { CGU_REG_CLKGR1, 4 },
 458         },
 459
 460         [JZ4780_CLK_HDMI] = {
 461                 "hdmi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 462                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 463                              JZ4780_CLK_VPLL, -1 },
 464                 .mux = { CGU_REG_HDMICDR, 30, 2 },
 465                 .div = { CGU_REG_HDMICDR, 0, 1, 8, 29, 28, 26 },
 466                 .gate = { CGU_REG_CLKGR1, 9 },
 467         },
 468
 469         [JZ4780_CLK_BCH] = {
 470                 "bch", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 471                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 472                              JZ4780_CLK_EPLL },
 473                 .mux = { CGU_REG_BCHCDR, 30, 2 },
 474                 .div = { CGU_REG_BCHCDR, 0, 1, 4, 29, 28, 27 },
 475                 .gate = { CGU_REG_CLKGR0, 1 },
 476         },
 477
 478         /* Gate-only clocks */
 479
 480         [JZ4780_CLK_NEMC] = {
 481                 "nemc", CGU_CLK_GATE,
 482                 .parents = { JZ4780_CLK_AHB2, -1, -1, -1 },
 483                 .gate = { CGU_REG_CLKGR0, 0 },
 484         },
 485
 486         [JZ4780_CLK_OTG0] = {
 487                 "otg0", CGU_CLK_GATE,
 488                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 489                 .gate = { CGU_REG_CLKGR0, 2 },
 490         },
 491
 492         [JZ4780_CLK_SSI0] = {
 493                 "ssi0", CGU_CLK_GATE,
 494                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 495                 .gate = { CGU_REG_CLKGR0, 4 },
 496         },
 497
 498         [JZ4780_CLK_SMB0] = {
 499                 "smb0", CGU_CLK_GATE,
 500                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 501                 .gate = { CGU_REG_CLKGR0, 5 },
 502         },
 503
 504         [JZ4780_CLK_SMB1] = {
 505                 "smb1", CGU_CLK_GATE,
 506                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 507                 .gate = { CGU_REG_CLKGR0, 6 },
 508         },
 509
 510         [JZ4780_CLK_SCC] = {
 511                 "scc", CGU_CLK_GATE,
 512                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 513                 .gate = { CGU_REG_CLKGR0, 7 },
 514         },
 515
 516         [JZ4780_CLK_AIC] = {
 517                 "aic", CGU_CLK_GATE,
 518                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 519                 .gate = { CGU_REG_CLKGR0, 8 },
 520         },
 521
 522         [JZ4780_CLK_TSSI0] = {
 523                 "tssi0", CGU_CLK_GATE,
 524                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 525                 .gate = { CGU_REG_CLKGR0, 9 },
 526         },
 527
 528         [JZ4780_CLK_OWI] = {
 529                 "owi", CGU_CLK_GATE,
 530                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 531                 .gate = { CGU_REG_CLKGR0, 10 },
 532         },
 533
 534         [JZ4780_CLK_KBC] = {
 535                 "kbc", CGU_CLK_GATE,
 536                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 537                 .gate = { CGU_REG_CLKGR0, 13 },
 538         },
 539
 540         [JZ4780_CLK_SADC] = {
 541                 "sadc", CGU_CLK_GATE,
 542                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 543                 .gate = { CGU_REG_CLKGR0, 14 },
 544         },
 545
 546         [JZ4780_CLK_UART0] = {
 547                 "uart0", CGU_CLK_GATE,
 548                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 549                 .gate = { CGU_REG_CLKGR0, 15 },
 550         },
 551
 552         [JZ4780_CLK_UART1] = {
 553                 "uart1", CGU_CLK_GATE,
 554                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 555                 .gate = { CGU_REG_CLKGR0, 16 },
 556         },
 557
 558         [JZ4780_CLK_UART2] = {
 559                 "uart2", CGU_CLK_GATE,
 560                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 561                 .gate = { CGU_REG_CLKGR0, 17 },
 562         },
 563
 564         [JZ4780_CLK_UART3] = {
 565                 "uart3", CGU_CLK_GATE,
 566                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 567                 .gate = { CGU_REG_CLKGR0, 18 },
 568         },
 569
 570         [JZ4780_CLK_SSI1] = {
 571                 "ssi1", CGU_CLK_GATE,
 572                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 573                 .gate = { CGU_REG_CLKGR0, 19 },
 574         },
 575
 576         [JZ4780_CLK_SSI2] = {
 577                 "ssi2", CGU_CLK_GATE,
 578                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 579                 .gate = { CGU_REG_CLKGR0, 20 },
 580         },
 581
 582         [JZ4780_CLK_PDMA] = {
 583                 "pdma", CGU_CLK_GATE,
 584                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 585                 .gate = { CGU_REG_CLKGR0, 21 },
 586         },
 587
 588         [JZ4780_CLK_GPS] = {
 589                 "gps", CGU_CLK_GATE,
 590                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 591                 .gate = { CGU_REG_CLKGR0, 22 },
 592         },
 593
 594         [JZ4780_CLK_MAC] = {
 595                 "mac", CGU_CLK_GATE,
 596                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 597                 .gate = { CGU_REG_CLKGR0, 23 },
 598         },
 599
 600         [JZ4780_CLK_SMB2] = {
 601                 "smb2", CGU_CLK_GATE,
 602                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 603                 .gate = { CGU_REG_CLKGR0, 24 },
 604         },
 605
 606         [JZ4780_CLK_CIM] = {
 607                 "cim", CGU_CLK_GATE,
 608                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 609                 .gate = { CGU_REG_CLKGR0, 26 },
 610         },
 611
 612         [JZ4780_CLK_LCD] = {
 613                 "lcd", CGU_CLK_GATE,
 614                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 615                 .gate = { CGU_REG_CLKGR0, 28 },
 616         },
 617
 618         [JZ4780_CLK_TVE] = {
 619                 "tve", CGU_CLK_GATE,
 620                 .parents = { JZ4780_CLK_LCD, -1, -1, -1 },
 621                 .gate = { CGU_REG_CLKGR0, 27 },
 622         },
 623
 624         [JZ4780_CLK_IPU] = {
 625                 "ipu", CGU_CLK_GATE,
 626                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 627                 .gate = { CGU_REG_CLKGR0, 29 },
 628         },
 629
 630         [JZ4780_CLK_DDR0] = {
 631                 "ddr0", CGU_CLK_GATE,
 632                 .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
 633                 .gate = { CGU_REG_CLKGR0, 30 },
 634         },
 635
 636         [JZ4780_CLK_DDR1] = {
 637                 "ddr1", CGU_CLK_GATE,
 638                 .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
 639                 .gate = { CGU_REG_CLKGR0, 31 },
 640         },
 641
 642         [JZ4780_CLK_SMB3] = {
 643                 "smb3", CGU_CLK_GATE,
 644                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 645                 .gate = { CGU_REG_CLKGR1, 0 },
 646         },
 647
 648         [JZ4780_CLK_TSSI1] = {
 649                 "tssi1", CGU_CLK_GATE,
 650                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 651                 .gate = { CGU_REG_CLKGR1, 1 },
 652         },
 653
 654         [JZ4780_CLK_COMPRESS] = {
 655                 "compress", CGU_CLK_GATE,
 656                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 657                 .gate = { CGU_REG_CLKGR1, 5 },
 658         },
 659
 660         [JZ4780_CLK_AIC1] = {
 661                 "aic1", CGU_CLK_GATE,
 662                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 663                 .gate = { CGU_REG_CLKGR1, 6 },
 664         },
 665
 666         [JZ4780_CLK_GPVLC] = {
 667                 "gpvlc", CGU_CLK_GATE,
 668                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 669                 .gate = { CGU_REG_CLKGR1, 7 },
 670         },
 671
 672         [JZ4780_CLK_OTG1] = {
 673                 "otg1", CGU_CLK_GATE,
 674                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 675                 .gate = { CGU_REG_CLKGR1, 8 },
 676         },
 677
 678         [JZ4780_CLK_UART4] = {
 679                 "uart4", CGU_CLK_GATE,
 680                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 681                 .gate = { CGU_REG_CLKGR1, 10 },
 682         },
 683
 684         [JZ4780_CLK_AHBMON] = {
 685                 "ahb_mon", CGU_CLK_GATE,
 686                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 687                 .gate = { CGU_REG_CLKGR1, 11 },
 688         },
 689
 690         [JZ4780_CLK_SMB4] = {
 691                 "smb4", CGU_CLK_GATE,
 692                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 693                 .gate = { CGU_REG_CLKGR1, 12 },
 694         },
 695
 696         [JZ4780_CLK_DES] = {
 697                 "des", CGU_CLK_GATE,
 698                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 699                 .gate = { CGU_REG_CLKGR1, 13 },
 700         },
 701
 702         [JZ4780_CLK_X2D] = {
 703                 "x2d", CGU_CLK_GATE,
 704                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 705                 .gate = { CGU_REG_CLKGR1, 14 },
 706         },
 707
 708         [JZ4780_CLK_CORE1] = {
 709                 "core1", CGU_CLK_GATE,
 710                 .parents = { JZ4780_CLK_CPU, -1, -1, -1 },
 711                 .gate = { CGU_REG_CLKGR1, 15 },
 712         },
 713
 714 };
 715
 716 static void __init jz4780_cgu_init(struct device_node *np)
 717 {
 718         int retval;
 719
 720         cgu = ingenic_cgu_new(jz4780_cgu_clocks,
 721                               ARRAY_SIZE(jz4780_cgu_clocks), np);
 722         if (!cgu) {
 723                 pr_err("%s: failed to initialise CGU\n", __func__);
 724                 return;
 725         }
 726
 727         retval = ingenic_cgu_register_clocks(cgu);
 728         if (retval) {
 729                 pr_err("%s: failed to register CGU Clocks\n", __func__);
 730                 return;
 731         }
 732 }
 733 CLK_OF_DECLARE(jz4780_cgu, "ingenic,jz4780-cgu", jz4780_cgu_init);