drivers/clk/ingenic/jz4780-cgu.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Ingenic JZ4780 SoC CGU driver
   4  *
   5  * Copyright (c) 2013-2015 Imagination Technologies
   6  * Author: Paul Burton <paul.burton@mips.com>
   7  * Copyright (c) 2020 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
   8  */
   9
  10 #include <linux/clk-provider.h>
  11 #include <linux/delay.h>
  12 #include <linux/io.h>
  13 #include <linux/iopoll.h>
  14 #include <linux/of.h>
  15
  16 #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
  17
  18 #include "cgu.h"
  19 #include "pm.h"
  20
  21 /* CGU register offsets */
  22 #define CGU_REG_CLOCKCONTROL    0x00
  23 #define CGU_REG_LCR                             0x04
  24 #define CGU_REG_APLL                    0x10
  25 #define CGU_REG_MPLL                    0x14
  26 #define CGU_REG_EPLL                    0x18
  27 #define CGU_REG_VPLL                    0x1c
  28 #define CGU_REG_CLKGR0                  0x20
  29 #define CGU_REG_OPCR                    0x24
  30 #define CGU_REG_CLKGR1                  0x28
  31 #define CGU_REG_DDRCDR                  0x2c
  32 #define CGU_REG_VPUCDR                  0x30
  33 #define CGU_REG_USBPCR                  0x3c
  34 #define CGU_REG_USBRDT                  0x40
  35 #define CGU_REG_USBVBFIL                0x44
  36 #define CGU_REG_USBPCR1                 0x48
  37 #define CGU_REG_LP0CDR                  0x54
  38 #define CGU_REG_I2SCDR                  0x60
  39 #define CGU_REG_LP1CDR                  0x64
  40 #define CGU_REG_MSC0CDR                 0x68
  41 #define CGU_REG_UHCCDR                  0x6c
  42 #define CGU_REG_SSICDR                  0x74
  43 #define CGU_REG_CIMCDR                  0x7c
  44 #define CGU_REG_PCMCDR                  0x84
  45 #define CGU_REG_GPUCDR                  0x88
  46 #define CGU_REG_HDMICDR                 0x8c
  47 #define CGU_REG_MSC1CDR                 0xa4
  48 #define CGU_REG_MSC2CDR                 0xa8
  49 #define CGU_REG_BCHCDR                  0xac
  50 #define CGU_REG_CLOCKSTATUS             0xd4
  51
  52 /* bits within the OPCR register */
  53 #define OPCR_SPENDN0                    BIT(7)
  54 #define OPCR_SPENDN1                    BIT(6)
  55
  56 /* bits within the USBPCR register */
  57 #define USBPCR_USB_MODE                 BIT(31)
  58 #define USBPCR_IDPULLUP_MASK    (0x3 << 28)
  59 #define USBPCR_COMMONONN                BIT(25)
  60 #define USBPCR_VBUSVLDEXT               BIT(24)
  61 #define USBPCR_VBUSVLDEXTSEL    BIT(23)
  62 #define USBPCR_POR                              BIT(22)
  63 #define USBPCR_SIDDQ                    BIT(21)
  64 #define USBPCR_OTG_DISABLE              BIT(20)
  65 #define USBPCR_COMPDISTUNE_MASK (0x7 << 17)
  66 #define USBPCR_OTGTUNE_MASK             (0x7 << 14)
  67 #define USBPCR_SQRXTUNE_MASK    (0x7 << 11)
  68 #define USBPCR_TXFSLSTUNE_MASK  (0xf << 7)
  69 #define USBPCR_TXPREEMPHTUNE    BIT(6)
  70 #define USBPCR_TXHSXVTUNE_MASK  (0x3 << 4)
  71 #define USBPCR_TXVREFTUNE_MASK  0xf
  72
  73 /* bits within the USBPCR1 register */
  74 #define USBPCR1_REFCLKSEL_SHIFT 26
  75 #define USBPCR1_REFCLKSEL_MASK  (0x3 << USBPCR1_REFCLKSEL_SHIFT)
  76 #define USBPCR1_REFCLKSEL_CORE  (0x2 << USBPCR1_REFCLKSEL_SHIFT)
  77 #define USBPCR1_REFCLKDIV_SHIFT 24
  78 #define USBPCR1_REFCLKDIV_MASK  (0x3 << USBPCR1_REFCLKDIV_SHIFT)
  79 #define USBPCR1_REFCLKDIV_19_2  (0x3 << USBPCR1_REFCLKDIV_SHIFT)
  80 #define USBPCR1_REFCLKDIV_48    (0x2 << USBPCR1_REFCLKDIV_SHIFT)
  81 #define USBPCR1_REFCLKDIV_24    (0x1 << USBPCR1_REFCLKDIV_SHIFT)
  82 #define USBPCR1_REFCLKDIV_12    (0x0 << USBPCR1_REFCLKDIV_SHIFT)
  83 #define USBPCR1_USB_SEL                 BIT(28)
  84 #define USBPCR1_WORD_IF0                BIT(19)
  85 #define USBPCR1_WORD_IF1                BIT(18)
  86
  87 /* bits within the USBRDT register */
  88 #define USBRDT_VBFIL_LD_EN              BIT(25)
  89 #define USBRDT_USBRDT_MASK              0x7fffff
  90
  91 /* bits within the USBVBFIL register */
  92 #define USBVBFIL_IDDIGFIL_SHIFT 16
  93 #define USBVBFIL_IDDIGFIL_MASK  (0xffff << USBVBFIL_IDDIGFIL_SHIFT)
  94 #define USBVBFIL_USBVBFIL_MASK  (0xffff)
  95
  96 /* bits within the LCR register */
  97 #define LCR_PD_SCPU                             BIT(31)
  98 #define LCR_SCPUS                               BIT(27)
  99
 100 /* bits within the CLKGR1 register */
 101 #define CLKGR1_CORE1                    BIT(15)
 102
 103 static struct ingenic_cgu *cgu;
 104
 105 static unsigned long jz4780_otg_phy_recalc_rate(struct clk_hw *hw,
 106                                                 unsigned long parent_rate)
 107 {
 108         u32 usbpcr1;
 109         unsigned refclk_div;
 110
 111         usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
 112         refclk_div = usbpcr1 & USBPCR1_REFCLKDIV_MASK;
 113
 114         switch (refclk_div) {
 115         case USBPCR1_REFCLKDIV_12:
 116                 return 12000000;
 117
 118         case USBPCR1_REFCLKDIV_24:
 119                 return 24000000;
 120
 121         case USBPCR1_REFCLKDIV_48:
 122                 return 48000000;
 123
 124         case USBPCR1_REFCLKDIV_19_2:
 125                 return 19200000;
 126         }
 127
 128         return parent_rate;
 129 }
 130
 131 static long jz4780_otg_phy_round_rate(struct clk_hw *hw, unsigned long req_rate,
 132                                       unsigned long *parent_rate)
 133 {
 134         if (req_rate < 15600000)
 135                 return 12000000;
 136
 137         if (req_rate < 21600000)
 138                 return 19200000;
 139
 140         if (req_rate < 36000000)
 141                 return 24000000;
 142
 143         return 48000000;
 144 }
 145
 146 static int jz4780_otg_phy_set_rate(struct clk_hw *hw, unsigned long req_rate,
 147                                    unsigned long parent_rate)
 148 {
 149         unsigned long flags;
 150         u32 usbpcr1, div_bits;
 151
 152         switch (req_rate) {
 153         case 12000000:
 154                 div_bits = USBPCR1_REFCLKDIV_12;
 155                 break;
 156
 157         case 19200000:
 158                 div_bits = USBPCR1_REFCLKDIV_19_2;
 159                 break;
 160
 161         case 24000000:
 162                 div_bits = USBPCR1_REFCLKDIV_24;
 163                 break;
 164
 165         case 48000000:
 166                 div_bits = USBPCR1_REFCLKDIV_48;
 167                 break;
 168
 169         default:
 170                 return -EINVAL;
 171         }
 172
 173         spin_lock_irqsave(&cgu->lock, flags);
 174
 175         usbpcr1 = readl(cgu->base + CGU_REG_USBPCR1);
 176         usbpcr1 &= ~USBPCR1_REFCLKDIV_MASK;
 177         usbpcr1 |= div_bits;
 178         writel(usbpcr1, cgu->base + CGU_REG_USBPCR1);
 179
 180         spin_unlock_irqrestore(&cgu->lock, flags);
 181         return 0;
 182 }
 183
 184 static int jz4780_otg_phy_enable(struct clk_hw *hw)
 185 {
 186         void __iomem *reg_opcr          = cgu->base + CGU_REG_OPCR;
 187         void __iomem *reg_usbpcr        = cgu->base + CGU_REG_USBPCR;
 188
 189         writel(readl(reg_opcr) | OPCR_SPENDN0, reg_opcr);
 190         writel(readl(reg_usbpcr) & ~USBPCR_OTG_DISABLE & ~USBPCR_SIDDQ, reg_usbpcr);
 191         return 0;
 192 }
 193
 194 static void jz4780_otg_phy_disable(struct clk_hw *hw)
 195 {
 196         void __iomem *reg_opcr          = cgu->base + CGU_REG_OPCR;
 197         void __iomem *reg_usbpcr        = cgu->base + CGU_REG_USBPCR;
 198
 199         writel(readl(reg_opcr) & ~OPCR_SPENDN0, reg_opcr);
 200         writel(readl(reg_usbpcr) | USBPCR_OTG_DISABLE | USBPCR_SIDDQ, reg_usbpcr);
 201 }
 202
 203 static int jz4780_otg_phy_is_enabled(struct clk_hw *hw)
 204 {
 205         void __iomem *reg_opcr          = cgu->base + CGU_REG_OPCR;
 206         void __iomem *reg_usbpcr        = cgu->base + CGU_REG_USBPCR;
 207
 208         return (readl(reg_opcr) & OPCR_SPENDN0) &&
 209                 !(readl(reg_usbpcr) & USBPCR_SIDDQ) &&
 210                 !(readl(reg_usbpcr) & USBPCR_OTG_DISABLE);
 211 }
 212
 213 static const struct clk_ops jz4780_otg_phy_ops = {
 214         .recalc_rate = jz4780_otg_phy_recalc_rate,
 215         .round_rate = jz4780_otg_phy_round_rate,
 216         .set_rate = jz4780_otg_phy_set_rate,
 217
 218         .enable         = jz4780_otg_phy_enable,
 219         .disable        = jz4780_otg_phy_disable,
 220         .is_enabled     = jz4780_otg_phy_is_enabled,
 221 };
 222
 223 static int jz4780_core1_enable(struct clk_hw *hw)
 224 {
 225         struct ingenic_clk *ingenic_clk = to_ingenic_clk(hw);
 226         struct ingenic_cgu *cgu = ingenic_clk->cgu;
 227         const unsigned int timeout = 5000;
 228         unsigned long flags;
 229         int retval;
 230         u32 lcr, clkgr1;
 231
 232         spin_lock_irqsave(&cgu->lock, flags);
 233
 234         lcr = readl(cgu->base + CGU_REG_LCR);
 235         lcr &= ~LCR_PD_SCPU;
 236         writel(lcr, cgu->base + CGU_REG_LCR);
 237
 238         clkgr1 = readl(cgu->base + CGU_REG_CLKGR1);
 239         clkgr1 &= ~CLKGR1_CORE1;
 240         writel(clkgr1, cgu->base + CGU_REG_CLKGR1);
 241
 242         spin_unlock_irqrestore(&cgu->lock, flags);
 243
 244         /* wait for the CPU to be powered up */
 245         retval = readl_poll_timeout(cgu->base + CGU_REG_LCR, lcr,
 246                                  !(lcr & LCR_SCPUS), 10, timeout);
 247         if (retval == -ETIMEDOUT) {
 248                 pr_err("%s: Wait for power up core1 timeout\n", __func__);
 249                 return retval;
 250         }
 251
 252         return 0;
 253 }
 254
 255 static const struct clk_ops jz4780_core1_ops = {
 256         .enable = jz4780_core1_enable,
 257 };
 258
 259 static const s8 pll_od_encoding[16] = {
 260         0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
 261         0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
 262 };
 263
 264 static const struct ingenic_cgu_clk_info jz4780_cgu_clocks[] = {
 265
 266         /* External clocks */
 267
 268         [JZ4780_CLK_EXCLK] = { "ext", CGU_CLK_EXT },
 269         [JZ4780_CLK_RTCLK] = { "rtc", CGU_CLK_EXT },
 270
 271         /* PLLs */
 272
 273 #define DEF_PLL(name) { \
 274         .reg = CGU_REG_ ## name, \
 275         .rate_multiplier = 1, \
 276         .m_shift = 19, \
 277         .m_bits = 13, \
 278         .m_offset = 1, \
 279         .n_shift = 13, \
 280         .n_bits = 6, \
 281         .n_offset = 1, \
 282         .od_shift = 9, \
 283         .od_bits = 4, \
 284         .od_max = 16, \
 285         .od_encoding = pll_od_encoding, \
 286         .stable_bit = 6, \
 287         .bypass_reg = CGU_REG_ ## name, \
 288         .bypass_bit = 1, \
 289         .enable_bit = 0, \
 290 }
 291
 292         [JZ4780_CLK_APLL] = {
 293                 "apll", CGU_CLK_PLL,
 294                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 295                 .pll = DEF_PLL(APLL),
 296         },
 297
 298         [JZ4780_CLK_MPLL] = {
 299                 "mpll", CGU_CLK_PLL,
 300                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 301                 .pll = DEF_PLL(MPLL),
 302         },
 303
 304         [JZ4780_CLK_EPLL] = {
 305                 "epll", CGU_CLK_PLL,
 306                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 307                 .pll = DEF_PLL(EPLL),
 308         },
 309
 310         [JZ4780_CLK_VPLL] = {
 311                 "vpll", CGU_CLK_PLL,
 312                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 313                 .pll = DEF_PLL(VPLL),
 314         },
 315
 316 #undef DEF_PLL
 317
 318         /* Custom (SoC-specific) OTG PHY */
 319
 320         [JZ4780_CLK_OTGPHY] = {
 321                 "otg_phy", CGU_CLK_CUSTOM,
 322                 .parents = { -1, -1, JZ4780_CLK_EXCLK, -1 },
 323                 .custom = { &jz4780_otg_phy_ops },
 324         },
 325
 326         /* Muxes & dividers */
 327
 328         [JZ4780_CLK_SCLKA] = {
 329                 "sclk_a", CGU_CLK_MUX,
 330                 .parents = { -1, JZ4780_CLK_APLL, JZ4780_CLK_EXCLK,
 331                              JZ4780_CLK_RTCLK },
 332                 .mux = { CGU_REG_CLOCKCONTROL, 30, 2 },
 333         },
 334
 335         [JZ4780_CLK_CPUMUX] = {
 336                 "cpumux", CGU_CLK_MUX,
 337                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 338                              JZ4780_CLK_EPLL },
 339                 .mux = { CGU_REG_CLOCKCONTROL, 28, 2 },
 340         },
 341
 342         [JZ4780_CLK_CPU] = {
 343                 "cpu", CGU_CLK_DIV,
 344                 /*
 345                  * Disabling the CPU clock or any parent clocks will hang the
 346                  * system; mark it critical.
 347                  */
 348                 .flags = CLK_IS_CRITICAL,
 349                 .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
 350                 .div = { CGU_REG_CLOCKCONTROL, 0, 1, 4, 22, -1, -1 },
 351         },
 352
 353         [JZ4780_CLK_L2CACHE] = {
 354                 "l2cache", CGU_CLK_DIV,
 355                 /*
 356                  * The L2 cache clock is critical if caches are enabled and
 357                  * disabling it or any parent clocks will hang the system.
 358                  */
 359                 .flags = CLK_IS_CRITICAL,
 360                 .parents = { JZ4780_CLK_CPUMUX, -1, -1, -1 },
 361                 .div = { CGU_REG_CLOCKCONTROL, 4, 1, 4, -1, -1, -1 },
 362         },
 363
 364         [JZ4780_CLK_AHB0] = {
 365                 "ahb0", CGU_CLK_MUX | CGU_CLK_DIV,
 366                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 367                              JZ4780_CLK_EPLL },
 368                 .mux = { CGU_REG_CLOCKCONTROL, 26, 2 },
 369                 .div = { CGU_REG_CLOCKCONTROL, 8, 1, 4, 21, -1, -1 },
 370         },
 371
 372         [JZ4780_CLK_AHB2PMUX] = {
 373                 "ahb2_apb_mux", CGU_CLK_MUX,
 374                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 375                              JZ4780_CLK_RTCLK },
 376                 .mux = { CGU_REG_CLOCKCONTROL, 24, 2 },
 377         },
 378
 379         [JZ4780_CLK_AHB2] = {
 380                 "ahb2", CGU_CLK_DIV,
 381                 .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
 382                 .div = { CGU_REG_CLOCKCONTROL, 12, 1, 4, 20, -1, -1 },
 383         },
 384
 385         [JZ4780_CLK_PCLK] = {
 386                 "pclk", CGU_CLK_DIV,
 387                 .parents = { JZ4780_CLK_AHB2PMUX, -1, -1, -1 },
 388                 .div = { CGU_REG_CLOCKCONTROL, 16, 1, 4, 20, -1, -1 },
 389         },
 390
 391         [JZ4780_CLK_DDR] = {
 392                 "ddr", CGU_CLK_MUX | CGU_CLK_DIV,
 393                 /*
 394                  * Disabling DDR clock or its parents will render DRAM
 395                  * inaccessible; mark it critical.
 396                  */
 397                 .flags = CLK_IS_CRITICAL,
 398                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
 399                 .mux = { CGU_REG_DDRCDR, 30, 2 },
 400                 .div = { CGU_REG_DDRCDR, 0, 1, 4, 29, 28, 27 },
 401         },
 402
 403         [JZ4780_CLK_VPU] = {
 404                 "vpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 405                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 406                              JZ4780_CLK_EPLL, -1 },
 407                 .mux = { CGU_REG_VPUCDR, 30, 2 },
 408                 .div = { CGU_REG_VPUCDR, 0, 1, 4, 29, 28, 27 },
 409                 .gate = { CGU_REG_CLKGR1, 2 },
 410         },
 411
 412         [JZ4780_CLK_I2SPLL] = {
 413                 "i2s_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 414                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_EPLL, -1, -1 },
 415                 .mux = { CGU_REG_I2SCDR, 30, 1 },
 416                 .div = { CGU_REG_I2SCDR, 0, 1, 8, 29, 28, 27 },
 417         },
 418
 419         [JZ4780_CLK_I2S] = {
 420                 "i2s", CGU_CLK_MUX,
 421                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_I2SPLL, -1, -1 },
 422                 .mux = { CGU_REG_I2SCDR, 31, 1 },
 423         },
 424
 425         [JZ4780_CLK_LCD0PIXCLK] = {
 426                 "lcd0pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
 427                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 428                              JZ4780_CLK_VPLL, -1 },
 429                 .mux = { CGU_REG_LP0CDR, 30, 2 },
 430                 .div = { CGU_REG_LP0CDR, 0, 1, 8, 28, 27, 26 },
 431         },
 432
 433         [JZ4780_CLK_LCD1PIXCLK] = {
 434                 "lcd1pixclk", CGU_CLK_MUX | CGU_CLK_DIV,
 435                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 436                              JZ4780_CLK_VPLL, -1 },
 437                 .mux = { CGU_REG_LP1CDR, 30, 2 },
 438                 .div = { CGU_REG_LP1CDR, 0, 1, 8, 28, 27, 26 },
 439         },
 440
 441         [JZ4780_CLK_MSCMUX] = {
 442                 "msc_mux", CGU_CLK_MUX,
 443                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1 },
 444                 .mux = { CGU_REG_MSC0CDR, 30, 2 },
 445         },
 446
 447         [JZ4780_CLK_MSC0] = {
 448                 "msc0", CGU_CLK_DIV | CGU_CLK_GATE,
 449                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 450                 .div = { CGU_REG_MSC0CDR, 0, 2, 8, 29, 28, 27 },
 451                 .gate = { CGU_REG_CLKGR0, 3 },
 452         },
 453
 454         [JZ4780_CLK_MSC1] = {
 455                 "msc1", CGU_CLK_DIV | CGU_CLK_GATE,
 456                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 457                 .div = { CGU_REG_MSC1CDR, 0, 2, 8, 29, 28, 27 },
 458                 .gate = { CGU_REG_CLKGR0, 11 },
 459         },
 460
 461         [JZ4780_CLK_MSC2] = {
 462                 "msc2", CGU_CLK_DIV | CGU_CLK_GATE,
 463                 .parents = { JZ4780_CLK_MSCMUX, -1, -1, -1 },
 464                 .div = { CGU_REG_MSC2CDR, 0, 2, 8, 29, 28, 27 },
 465                 .gate = { CGU_REG_CLKGR0, 12 },
 466         },
 467
 468         [JZ4780_CLK_UHC] = {
 469                 "uhc", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 470                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 471                              JZ4780_CLK_EPLL, JZ4780_CLK_OTGPHY },
 472                 .mux = { CGU_REG_UHCCDR, 30, 2 },
 473                 .div = { CGU_REG_UHCCDR, 0, 1, 8, 29, 28, 27 },
 474                 .gate = { CGU_REG_CLKGR0, 24 },
 475         },
 476
 477         [JZ4780_CLK_SSIPLL] = {
 478                 "ssi_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 479                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
 480                 .mux = { CGU_REG_SSICDR, 30, 1 },
 481                 .div = { CGU_REG_SSICDR, 0, 1, 8, 29, 28, 27 },
 482         },
 483
 484         [JZ4780_CLK_SSI] = {
 485                 "ssi", CGU_CLK_MUX,
 486                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_SSIPLL, -1, -1 },
 487                 .mux = { CGU_REG_SSICDR, 31, 1 },
 488         },
 489
 490         [JZ4780_CLK_CIMMCLK] = {
 491                 "cim_mclk", CGU_CLK_MUX | CGU_CLK_DIV,
 492                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL, -1, -1 },
 493                 .mux = { CGU_REG_CIMCDR, 31, 1 },
 494                 .div = { CGU_REG_CIMCDR, 0, 1, 8, 30, 29, 28 },
 495         },
 496
 497         [JZ4780_CLK_PCMPLL] = {
 498                 "pcm_pll", CGU_CLK_MUX | CGU_CLK_DIV,
 499                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 500                              JZ4780_CLK_EPLL, JZ4780_CLK_VPLL },
 501                 .mux = { CGU_REG_PCMCDR, 29, 2 },
 502                 .div = { CGU_REG_PCMCDR, 0, 1, 8, 28, 27, 26 },
 503         },
 504
 505         [JZ4780_CLK_PCM] = {
 506                 "pcm", CGU_CLK_MUX | CGU_CLK_GATE,
 507                 .parents = { JZ4780_CLK_EXCLK, JZ4780_CLK_PCMPLL, -1, -1 },
 508                 .mux = { CGU_REG_PCMCDR, 31, 1 },
 509                 .gate = { CGU_REG_CLKGR1, 3 },
 510         },
 511
 512         [JZ4780_CLK_GPU] = {
 513                 "gpu", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 514                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 515                              JZ4780_CLK_EPLL },
 516                 .mux = { CGU_REG_GPUCDR, 30, 2 },
 517                 .div = { CGU_REG_GPUCDR, 0, 1, 4, 29, 28, 27 },
 518                 .gate = { CGU_REG_CLKGR1, 4 },
 519         },
 520
 521         [JZ4780_CLK_HDMI] = {
 522                 "hdmi", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 523                 .parents = { JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 524                              JZ4780_CLK_VPLL, -1 },
 525                 .mux = { CGU_REG_HDMICDR, 30, 2 },
 526                 .div = { CGU_REG_HDMICDR, 0, 1, 8, 29, 28, 26 },
 527                 .gate = { CGU_REG_CLKGR1, 9 },
 528         },
 529
 530         [JZ4780_CLK_BCH] = {
 531                 "bch", CGU_CLK_MUX | CGU_CLK_DIV | CGU_CLK_GATE,
 532                 .parents = { -1, JZ4780_CLK_SCLKA, JZ4780_CLK_MPLL,
 533                              JZ4780_CLK_EPLL },
 534                 .mux = { CGU_REG_BCHCDR, 30, 2 },
 535                 .div = { CGU_REG_BCHCDR, 0, 1, 4, 29, 28, 27 },
 536                 .gate = { CGU_REG_CLKGR0, 1 },
 537         },
 538
 539         [JZ4780_CLK_EXCLK_DIV512] = {
 540                 "exclk_div512", CGU_CLK_FIXDIV,
 541                 .parents = { JZ4780_CLK_EXCLK },
 542                 .fixdiv = { 512 },
 543         },
 544
 545         [JZ4780_CLK_RTC] = {
 546                 "rtc_ercs", CGU_CLK_MUX | CGU_CLK_GATE,
 547                 .parents = { JZ4780_CLK_EXCLK_DIV512, JZ4780_CLK_RTCLK },
 548                 .mux = { CGU_REG_OPCR, 2, 1},
 549         },
 550
 551         /* Gate-only clocks */
 552
 553         [JZ4780_CLK_NEMC] = {
 554                 "nemc", CGU_CLK_GATE,
 555                 .parents = { JZ4780_CLK_AHB2, -1, -1, -1 },
 556                 .gate = { CGU_REG_CLKGR0, 0 },
 557         },
 558
 559         [JZ4780_CLK_OTG0] = {
 560                 "otg0", CGU_CLK_GATE,
 561                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 562                 .gate = { CGU_REG_CLKGR0, 2 },
 563         },
 564
 565         [JZ4780_CLK_SSI0] = {
 566                 "ssi0", CGU_CLK_GATE,
 567                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 568                 .gate = { CGU_REG_CLKGR0, 4 },
 569         },
 570
 571         [JZ4780_CLK_SMB0] = {
 572                 "smb0", CGU_CLK_GATE,
 573                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 574                 .gate = { CGU_REG_CLKGR0, 5 },
 575         },
 576
 577         [JZ4780_CLK_SMB1] = {
 578                 "smb1", CGU_CLK_GATE,
 579                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 580                 .gate = { CGU_REG_CLKGR0, 6 },
 581         },
 582
 583         [JZ4780_CLK_SCC] = {
 584                 "scc", CGU_CLK_GATE,
 585                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 586                 .gate = { CGU_REG_CLKGR0, 7 },
 587         },
 588
 589         [JZ4780_CLK_AIC] = {
 590                 "aic", CGU_CLK_GATE,
 591                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 592                 .gate = { CGU_REG_CLKGR0, 8 },
 593         },
 594
 595         [JZ4780_CLK_TSSI0] = {
 596                 "tssi0", CGU_CLK_GATE,
 597                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 598                 .gate = { CGU_REG_CLKGR0, 9 },
 599         },
 600
 601         [JZ4780_CLK_OWI] = {
 602                 "owi", CGU_CLK_GATE,
 603                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 604                 .gate = { CGU_REG_CLKGR0, 10 },
 605         },
 606
 607         [JZ4780_CLK_KBC] = {
 608                 "kbc", CGU_CLK_GATE,
 609                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 610                 .gate = { CGU_REG_CLKGR0, 13 },
 611         },
 612
 613         [JZ4780_CLK_SADC] = {
 614                 "sadc", CGU_CLK_GATE,
 615                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 616                 .gate = { CGU_REG_CLKGR0, 14 },
 617         },
 618
 619         [JZ4780_CLK_UART0] = {
 620                 "uart0", CGU_CLK_GATE,
 621                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 622                 .gate = { CGU_REG_CLKGR0, 15 },
 623         },
 624
 625         [JZ4780_CLK_UART1] = {
 626                 "uart1", CGU_CLK_GATE,
 627                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 628                 .gate = { CGU_REG_CLKGR0, 16 },
 629         },
 630
 631         [JZ4780_CLK_UART2] = {
 632                 "uart2", CGU_CLK_GATE,
 633                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 634                 .gate = { CGU_REG_CLKGR0, 17 },
 635         },
 636
 637         [JZ4780_CLK_UART3] = {
 638                 "uart3", CGU_CLK_GATE,
 639                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 640                 .gate = { CGU_REG_CLKGR0, 18 },
 641         },
 642
 643         [JZ4780_CLK_SSI1] = {
 644                 "ssi1", CGU_CLK_GATE,
 645                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 646                 .gate = { CGU_REG_CLKGR0, 19 },
 647         },
 648
 649         [JZ4780_CLK_SSI2] = {
 650                 "ssi2", CGU_CLK_GATE,
 651                 .parents = { JZ4780_CLK_SSI, -1, -1, -1 },
 652                 .gate = { CGU_REG_CLKGR0, 20 },
 653         },
 654
 655         [JZ4780_CLK_PDMA] = {
 656                 "pdma", CGU_CLK_GATE,
 657                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 658                 .gate = { CGU_REG_CLKGR0, 21 },
 659         },
 660
 661         [JZ4780_CLK_GPS] = {
 662                 "gps", CGU_CLK_GATE,
 663                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 664                 .gate = { CGU_REG_CLKGR0, 22 },
 665         },
 666
 667         [JZ4780_CLK_MAC] = {
 668                 "mac", CGU_CLK_GATE,
 669                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 670                 .gate = { CGU_REG_CLKGR0, 23 },
 671         },
 672
 673         [JZ4780_CLK_SMB2] = {
 674                 "smb2", CGU_CLK_GATE,
 675                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 676                 .gate = { CGU_REG_CLKGR0, 24 },
 677         },
 678
 679         [JZ4780_CLK_CIM] = {
 680                 "cim", CGU_CLK_GATE,
 681                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 682                 .gate = { CGU_REG_CLKGR0, 26 },
 683         },
 684
 685         [JZ4780_CLK_LCD] = {
 686                 "lcd", CGU_CLK_GATE,
 687                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 688                 .gate = { CGU_REG_CLKGR0, 28 },
 689         },
 690
 691         [JZ4780_CLK_TVE] = {
 692                 "tve", CGU_CLK_GATE,
 693                 .parents = { JZ4780_CLK_LCD, -1, -1, -1 },
 694                 .gate = { CGU_REG_CLKGR0, 27 },
 695         },
 696
 697         [JZ4780_CLK_IPU] = {
 698                 "ipu", CGU_CLK_GATE,
 699                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 700                 .gate = { CGU_REG_CLKGR0, 29 },
 701         },
 702
 703         [JZ4780_CLK_DDR0] = {
 704                 "ddr0", CGU_CLK_GATE,
 705                 .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
 706                 .gate = { CGU_REG_CLKGR0, 30 },
 707         },
 708
 709         [JZ4780_CLK_DDR1] = {
 710                 "ddr1", CGU_CLK_GATE,
 711                 .parents = { JZ4780_CLK_DDR, -1, -1, -1 },
 712                 .gate = { CGU_REG_CLKGR0, 31 },
 713         },
 714
 715         [JZ4780_CLK_SMB3] = {
 716                 "smb3", CGU_CLK_GATE,
 717                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 718                 .gate = { CGU_REG_CLKGR1, 0 },
 719         },
 720
 721         [JZ4780_CLK_TSSI1] = {
 722                 "tssi1", CGU_CLK_GATE,
 723                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 724                 .gate = { CGU_REG_CLKGR1, 1 },
 725         },
 726
 727         [JZ4780_CLK_COMPRESS] = {
 728                 "compress", CGU_CLK_GATE,
 729                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 730                 .gate = { CGU_REG_CLKGR1, 5 },
 731         },
 732
 733         [JZ4780_CLK_AIC1] = {
 734                 "aic1", CGU_CLK_GATE,
 735                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 736                 .gate = { CGU_REG_CLKGR1, 6 },
 737         },
 738
 739         [JZ4780_CLK_GPVLC] = {
 740                 "gpvlc", CGU_CLK_GATE,
 741                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 742                 .gate = { CGU_REG_CLKGR1, 7 },
 743         },
 744
 745         [JZ4780_CLK_OTG1] = {
 746                 "otg1", CGU_CLK_GATE,
 747                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 748                 .gate = { CGU_REG_CLKGR1, 8 },
 749         },
 750
 751         [JZ4780_CLK_UART4] = {
 752                 "uart4", CGU_CLK_GATE,
 753                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 754                 .gate = { CGU_REG_CLKGR1, 10 },
 755         },
 756
 757         [JZ4780_CLK_AHBMON] = {
 758                 "ahb_mon", CGU_CLK_GATE,
 759                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 760                 .gate = { CGU_REG_CLKGR1, 11 },
 761         },
 762
 763         [JZ4780_CLK_SMB4] = {
 764                 "smb4", CGU_CLK_GATE,
 765                 .parents = { JZ4780_CLK_PCLK, -1, -1, -1 },
 766                 .gate = { CGU_REG_CLKGR1, 12 },
 767         },
 768
 769         [JZ4780_CLK_DES] = {
 770                 "des", CGU_CLK_GATE,
 771                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 772                 .gate = { CGU_REG_CLKGR1, 13 },
 773         },
 774
 775         [JZ4780_CLK_X2D] = {
 776                 "x2d", CGU_CLK_GATE,
 777                 .parents = { JZ4780_CLK_EXCLK, -1, -1, -1 },
 778                 .gate = { CGU_REG_CLKGR1, 14 },
 779         },
 780
 781         [JZ4780_CLK_CORE1] = {
 782                 "core1", CGU_CLK_CUSTOM,
 783                 .parents = { JZ4780_CLK_CPU, -1, -1, -1 },
 784                 .custom = { &jz4780_core1_ops },
 785         },
 786
 787 };
 788
 789 static void __init jz4780_cgu_init(struct device_node *np)
 790 {
 791         int retval;
 792
 793         cgu = ingenic_cgu_new(jz4780_cgu_clocks,
 794                               ARRAY_SIZE(jz4780_cgu_clocks), np);
 795         if (!cgu) {
 796                 pr_err("%s: failed to initialise CGU\n", __func__);
 797                 return;
 798         }
 799
 800         retval = ingenic_cgu_register_clocks(cgu);
 801         if (retval) {
 802                 pr_err("%s: failed to register CGU Clocks\n", __func__);
 803                 return;
 804         }
 805
 806         ingenic_cgu_register_syscore_ops(cgu);
 807 }
 808 CLK_OF_DECLARE_DRIVER(jz4780_cgu, "ingenic,jz4780-cgu", jz4780_cgu_init);