drivers/clk/renesas/clk-rcar-gen3.c

   1 /*
   2  * Renesas RCar Gen3 R8A7795/R8A7796 CPG MSSR driver
   3  *
   4  * Copyright (C) 2017 Marek Vasut <marek.vasut@gmail.com>
   5  *
   6  * Based on the following driver from Linux kernel:
   7  * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
   8  *
   9  * Copyright (C) 2016 Glider bvba
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 #include <common.h>
  15 #include <clk-uclass.h>
  16 #include <dm.h>
  17 #include <errno.h>
  18 #include <wait_bit.h>
  19 #include <asm/io.h>
  20
  21 #include <dt-bindings/clock/r8a7795-cpg-mssr.h>
  22 #include <dt-bindings/clock/r8a7796-cpg-mssr.h>
  23
  24 #define CPG_RST_MODEMR          0x0060
  25
  26 #define CPG_PLL0CR              0x00d8
  27 #define CPG_PLL2CR              0x002c
  28 #define CPG_PLL4CR              0x01f4
  29
  30 #define CPG_RPC_PREDIV_MASK     0x3
  31 #define CPG_RPC_PREDIV_OFFSET   3
  32 #define CPG_RPC_POSTDIV_MASK    0x7
  33 #define CPG_RPC_POSTDIV_OFFSET  0
  34
  35 /*
  36  * Module Standby and Software Reset register offets.
  37  *
  38  * If the registers exist, these are valid for SH-Mobile, R-Mobile,
  39  * R-Car Gen2, R-Car Gen3, and RZ/G1.
  40  * These are NOT valid for R-Car Gen1 and RZ/A1!
  41  */
  42
  43 /*
  44  * Module Stop Status Register offsets
  45  */
  46
  47 static const u16 mstpsr[] = {
  48         0x030, 0x038, 0x040, 0x048, 0x04C, 0x03C, 0x1C0, 0x1C4,
  49         0x9A0, 0x9A4, 0x9A8, 0x9AC,
  50 };
  51
  52 #define MSTPSR(i)       mstpsr[i]
  53
  54
  55 /*
  56  * System Module Stop Control Register offsets
  57  */
  58
  59 static const u16 smstpcr[] = {
  60         0x130, 0x134, 0x138, 0x13C, 0x140, 0x144, 0x148, 0x14C,
  61         0x990, 0x994, 0x998, 0x99C,
  62 };
  63
  64 #define SMSTPCR(i)      smstpcr[i]
  65
  66
  67 /* Realtime Module Stop Control Register offsets */
  68 #define RMSTPCR(i)      (smstpcr[i] - 0x20)
  69
  70 /* Modem Module Stop Control Register offsets (r8a73a4) */
  71 #define MMSTPCR(i)      (smstpcr[i] + 0x20)
  72
  73 /* Software Reset Clearing Register offsets */
  74 #define SRSTCLR(i)      (0x940 + (i) * 4)
  75
  76 struct gen3_clk_priv {
  77         void __iomem    *base;
  78         struct clk      clk_extal;
  79         struct clk      clk_extalr;
  80         const struct rcar_gen3_cpg_pll_config *cpg_pll_config;
  81         const struct cpg_core_clk *core_clk;
  82         u32             core_clk_size;
  83         const struct mssr_mod_clk *mod_clk;
  84         u32             mod_clk_size;
  85 };
  86
  87 /*
  88  * Definitions of CPG Core Clocks
  89  *
  90  * These include:
  91  *   - Clock outputs exported to DT
  92  *   - External input clocks
  93  *   - Internal CPG clocks
  94  */
  95 struct cpg_core_clk {
  96         /* Common */
  97         const char *name;
  98         unsigned int id;
  99         unsigned int type;
 100         /* Depending on type */
 101         unsigned int parent;    /* Core Clocks only */
 102         unsigned int div;
 103         unsigned int mult;
 104         unsigned int offset;
 105 };
 106
 107 enum clk_types {
 108         /* Generic */
 109         CLK_TYPE_IN,            /* External Clock Input */
 110         CLK_TYPE_FF,            /* Fixed Factor Clock */
 111
 112         /* Custom definitions start here */
 113         CLK_TYPE_CUSTOM,
 114 };
 115
 116 #define DEF_TYPE(_name, _id, _type...)  \
 117         { .name = _name, .id = _id, .type = _type }
 118 #define DEF_BASE(_name, _id, _type, _parent...) \
 119         DEF_TYPE(_name, _id, _type, .parent = _parent)
 120
 121 #define DEF_INPUT(_name, _id) \
 122         DEF_TYPE(_name, _id, CLK_TYPE_IN)
 123 #define DEF_FIXED(_name, _id, _parent, _div, _mult)     \
 124         DEF_BASE(_name, _id, CLK_TYPE_FF, _parent, .div = _div, .mult = _mult)
 125 #define DEF_GEN3_SD(_name, _id, _parent, _offset)       \
 126         DEF_BASE(_name, _id, CLK_TYPE_GEN3_SD, _parent, .offset = _offset)
 127 #define DEF_GEN3_RPC(_name, _id, _parent, _offset)      \
 128         DEF_BASE(_name, _id, CLK_TYPE_GEN3_RPC, _parent, .offset = _offset)
 129
 130 /*
 131  * Definitions of Module Clocks
 132  */
 133 struct mssr_mod_clk {
 134         const char *name;
 135         unsigned int id;
 136         unsigned int parent;    /* Add MOD_CLK_BASE for Module Clocks */
 137 };
 138
 139 /* Convert from sparse base-100 to packed index space */
 140 #define MOD_CLK_PACK(x) ((x) - ((x) / 100) * (100 - 32))
 141
 142 #define MOD_CLK_ID(x)   (MOD_CLK_BASE + MOD_CLK_PACK(x))
 143
 144 #define DEF_MOD(_name, _mod, _parent...)        \
 145         { .name = _name, .id = MOD_CLK_ID(_mod), .parent = _parent }
 146
 147 enum rcar_gen3_clk_types {
 148         CLK_TYPE_GEN3_MAIN = CLK_TYPE_CUSTOM,
 149         CLK_TYPE_GEN3_PLL0,
 150         CLK_TYPE_GEN3_PLL1,
 151         CLK_TYPE_GEN3_PLL2,
 152         CLK_TYPE_GEN3_PLL3,
 153         CLK_TYPE_GEN3_PLL4,
 154         CLK_TYPE_GEN3_SD,
 155         CLK_TYPE_GEN3_RPC,
 156         CLK_TYPE_GEN3_R,
 157 };
 158
 159 struct rcar_gen3_cpg_pll_config {
 160         unsigned int extal_div;
 161         unsigned int pll1_mult;
 162         unsigned int pll3_mult;
 163 };
 164
 165 enum clk_ids {
 166         /* Core Clock Outputs exported to DT */
 167         LAST_DT_CORE_CLK = R8A7796_CLK_OSC,
 168
 169         /* External Input Clocks */
 170         CLK_EXTAL,
 171         CLK_EXTALR,
 172
 173         /* Internal Core Clocks */
 174         CLK_MAIN,
 175         CLK_PLL0,
 176         CLK_PLL1,
 177         CLK_PLL2,
 178         CLK_PLL3,
 179         CLK_PLL4,
 180         CLK_PLL1_DIV2,
 181         CLK_PLL1_DIV4,
 182         CLK_S0,
 183         CLK_S1,
 184         CLK_S2,
 185         CLK_S3,
 186         CLK_SDSRC,
 187         CLK_RPCSRC,
 188         CLK_SSPSRC,
 189         CLK_RINT,
 190
 191         /* Module Clocks */
 192         MOD_CLK_BASE
 193 };
 194
 195 static const struct cpg_core_clk r8a7795_core_clks[] = {
 196         /* External Clock Inputs */
 197         DEF_INPUT("extal",      CLK_EXTAL),
 198         DEF_INPUT("extalr",     CLK_EXTALR),
 199
 200         /* Internal Core Clocks */
 201         DEF_BASE(".main",       CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
 202         DEF_BASE(".pll0",       CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
 203         DEF_BASE(".pll1",       CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
 204         DEF_BASE(".pll2",       CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
 205         DEF_BASE(".pll3",       CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
 206         DEF_BASE(".pll4",       CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
 207
 208         DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2,     CLK_PLL1,       2, 1),
 209         DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4,     CLK_PLL1_DIV2,  2, 1),
 210         DEF_FIXED(".s0",        CLK_S0,            CLK_PLL1_DIV2,  2, 1),
 211         DEF_FIXED(".s1",        CLK_S1,            CLK_PLL1_DIV2,  3, 1),
 212         DEF_FIXED(".s2",        CLK_S2,            CLK_PLL1_DIV2,  4, 1),
 213         DEF_FIXED(".s3",        CLK_S3,            CLK_PLL1_DIV2,  6, 1),
 214         DEF_FIXED(".sdsrc",     CLK_SDSRC,         CLK_PLL1_DIV2,  2, 1),
 215         DEF_FIXED(".rpcsrc",    CLK_RPCSRC,        CLK_PLL1,       2, 1),
 216
 217         /* Core Clock Outputs */
 218         DEF_FIXED("ztr",        R8A7795_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 219         DEF_FIXED("ztrd2",      R8A7795_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 220         DEF_FIXED("zt",         R8A7795_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
 221         DEF_FIXED("zx",         R8A7795_CLK_ZX,    CLK_PLL1_DIV2,  2, 1),
 222         DEF_FIXED("s0d1",       R8A7795_CLK_S0D1,  CLK_S0,         1, 1),
 223         DEF_FIXED("s0d2",       R8A7795_CLK_S0D2,  CLK_S0,         2, 1),
 224         DEF_FIXED("s0d3",       R8A7795_CLK_S0D3,  CLK_S0,         3, 1),
 225         DEF_FIXED("s0d4",       R8A7795_CLK_S0D4,  CLK_S0,         4, 1),
 226         DEF_FIXED("s0d6",       R8A7795_CLK_S0D6,  CLK_S0,         6, 1),
 227         DEF_FIXED("s0d8",       R8A7795_CLK_S0D8,  CLK_S0,         8, 1),
 228         DEF_FIXED("s0d12",      R8A7795_CLK_S0D12, CLK_S0,        12, 1),
 229         DEF_FIXED("s1d1",       R8A7795_CLK_S1D1,  CLK_S1,         1, 1),
 230         DEF_FIXED("s1d2",       R8A7795_CLK_S1D2,  CLK_S1,         2, 1),
 231         DEF_FIXED("s1d4",       R8A7795_CLK_S1D4,  CLK_S1,         4, 1),
 232         DEF_FIXED("s2d1",       R8A7795_CLK_S2D1,  CLK_S2,         1, 1),
 233         DEF_FIXED("s2d2",       R8A7795_CLK_S2D2,  CLK_S2,         2, 1),
 234         DEF_FIXED("s2d4",       R8A7795_CLK_S2D4,  CLK_S2,         4, 1),
 235         DEF_FIXED("s3d1",       R8A7795_CLK_S3D1,  CLK_S3,         1, 1),
 236         DEF_FIXED("s3d2",       R8A7795_CLK_S3D2,  CLK_S3,         2, 1),
 237         DEF_FIXED("s3d4",       R8A7795_CLK_S3D4,  CLK_S3,         4, 1),
 238
 239         DEF_GEN3_SD("sd0",      R8A7795_CLK_SD0,   CLK_SDSRC,     0x074),
 240         DEF_GEN3_SD("sd1",      R8A7795_CLK_SD1,   CLK_SDSRC,     0x078),
 241         DEF_GEN3_SD("sd2",      R8A7795_CLK_SD2,   CLK_SDSRC,     0x268),
 242         DEF_GEN3_SD("sd3",      R8A7795_CLK_SD3,   CLK_SDSRC,     0x26c),
 243
 244         DEF_GEN3_RPC("rpc",     R8A7795_CLK_RPC,   CLK_RPCSRC,    0x238),
 245
 246         DEF_FIXED("cl",         R8A7795_CLK_CL,    CLK_PLL1_DIV2, 48, 1),
 247         DEF_FIXED("cp",         R8A7795_CLK_CP,    CLK_EXTAL,      2, 1),
 248
 249         /* NOTE: HDMI, CSI, CAN etc. clock are missing */
 250
 251         DEF_BASE("r",           R8A7795_CLK_R,     CLK_TYPE_GEN3_R, CLK_RINT),
 252 };
 253
 254 static const struct mssr_mod_clk r8a7795_mod_clks[] = {
 255         DEF_MOD("fdp1-2",                117,   R8A7795_CLK_S2D1), /* ES1.x */
 256         DEF_MOD("fdp1-1",                118,   R8A7795_CLK_S0D1),
 257         DEF_MOD("fdp1-0",                119,   R8A7795_CLK_S0D1),
 258         DEF_MOD("scif5",                 202,   R8A7795_CLK_S3D4),
 259         DEF_MOD("scif4",                 203,   R8A7795_CLK_S3D4),
 260         DEF_MOD("scif3",                 204,   R8A7795_CLK_S3D4),
 261         DEF_MOD("scif1",                 206,   R8A7795_CLK_S3D4),
 262         DEF_MOD("scif0",                 207,   R8A7795_CLK_S3D4),
 263         DEF_MOD("msiof3",                208,   R8A7795_CLK_MSO),
 264         DEF_MOD("msiof2",                209,   R8A7795_CLK_MSO),
 265         DEF_MOD("msiof1",                210,   R8A7795_CLK_MSO),
 266         DEF_MOD("msiof0",                211,   R8A7795_CLK_MSO),
 267         DEF_MOD("sys-dmac2",             217,   R8A7795_CLK_S0D3),
 268         DEF_MOD("sys-dmac1",             218,   R8A7795_CLK_S0D3),
 269         DEF_MOD("sys-dmac0",             219,   R8A7795_CLK_S0D3),
 270         DEF_MOD("cmt3",                  300,   R8A7795_CLK_R),
 271         DEF_MOD("cmt2",                  301,   R8A7795_CLK_R),
 272         DEF_MOD("cmt1",                  302,   R8A7795_CLK_R),
 273         DEF_MOD("cmt0",                  303,   R8A7795_CLK_R),
 274         DEF_MOD("scif2",                 310,   R8A7795_CLK_S3D4),
 275         DEF_MOD("sdif3",                 311,   R8A7795_CLK_SD3),
 276         DEF_MOD("sdif2",                 312,   R8A7795_CLK_SD2),
 277         DEF_MOD("sdif1",                 313,   R8A7795_CLK_SD1),
 278         DEF_MOD("sdif0",                 314,   R8A7795_CLK_SD0),
 279         DEF_MOD("pcie1",                 318,   R8A7795_CLK_S3D1),
 280         DEF_MOD("pcie0",                 319,   R8A7795_CLK_S3D1),
 281         DEF_MOD("usb-dmac30",            326,   R8A7795_CLK_S3D1),
 282         DEF_MOD("usb3-if1",              327,   R8A7795_CLK_S3D1), /* ES1.x */
 283         DEF_MOD("usb3-if0",              328,   R8A7795_CLK_S3D1),
 284         DEF_MOD("usb-dmac31",            329,   R8A7795_CLK_S3D1),
 285         DEF_MOD("usb-dmac0",             330,   R8A7795_CLK_S3D1),
 286         DEF_MOD("usb-dmac1",             331,   R8A7795_CLK_S3D1),
 287         DEF_MOD("rwdt",                  402,   R8A7795_CLK_R),
 288         DEF_MOD("intc-ex",               407,   R8A7795_CLK_CP),
 289         DEF_MOD("intc-ap",               408,   R8A7795_CLK_S3D1),
 290         DEF_MOD("audmac1",               501,   R8A7795_CLK_S0D3),
 291         DEF_MOD("audmac0",               502,   R8A7795_CLK_S0D3),
 292         DEF_MOD("drif7",                 508,   R8A7795_CLK_S3D2),
 293         DEF_MOD("drif6",                 509,   R8A7795_CLK_S3D2),
 294         DEF_MOD("drif5",                 510,   R8A7795_CLK_S3D2),
 295         DEF_MOD("drif4",                 511,   R8A7795_CLK_S3D2),
 296         DEF_MOD("drif3",                 512,   R8A7795_CLK_S3D2),
 297         DEF_MOD("drif2",                 513,   R8A7795_CLK_S3D2),
 298         DEF_MOD("drif1",                 514,   R8A7795_CLK_S3D2),
 299         DEF_MOD("drif0",                 515,   R8A7795_CLK_S3D2),
 300         DEF_MOD("hscif4",                516,   R8A7795_CLK_S3D1),
 301         DEF_MOD("hscif3",                517,   R8A7795_CLK_S3D1),
 302         DEF_MOD("hscif2",                518,   R8A7795_CLK_S3D1),
 303         DEF_MOD("hscif1",                519,   R8A7795_CLK_S3D1),
 304         DEF_MOD("hscif0",                520,   R8A7795_CLK_S3D1),
 305         DEF_MOD("thermal",               522,   R8A7795_CLK_CP),
 306         DEF_MOD("pwm",                   523,   R8A7795_CLK_S0D12),
 307         DEF_MOD("fcpvd3",                600,   R8A7795_CLK_S2D1), /* ES1.x */
 308         DEF_MOD("fcpvd2",                601,   R8A7795_CLK_S0D2),
 309         DEF_MOD("fcpvd1",                602,   R8A7795_CLK_S0D2),
 310         DEF_MOD("fcpvd0",                603,   R8A7795_CLK_S0D2),
 311         DEF_MOD("fcpvb1",                606,   R8A7795_CLK_S0D1),
 312         DEF_MOD("fcpvb0",                607,   R8A7795_CLK_S0D1),
 313         DEF_MOD("fcpvi2",                609,   R8A7795_CLK_S2D1), /* ES1.x */
 314         DEF_MOD("fcpvi1",                610,   R8A7795_CLK_S0D1),
 315         DEF_MOD("fcpvi0",                611,   R8A7795_CLK_S0D1),
 316         DEF_MOD("fcpf2",                 613,   R8A7795_CLK_S2D1), /* ES1.x */
 317         DEF_MOD("fcpf1",                 614,   R8A7795_CLK_S0D1),
 318         DEF_MOD("fcpf0",                 615,   R8A7795_CLK_S0D1),
 319         DEF_MOD("fcpci1",                616,   R8A7795_CLK_S2D1), /* ES1.x */
 320         DEF_MOD("fcpci0",                617,   R8A7795_CLK_S2D1), /* ES1.x */
 321         DEF_MOD("fcpcs",                 619,   R8A7795_CLK_S0D1),
 322         DEF_MOD("vspd3",                 620,   R8A7795_CLK_S2D1), /* ES1.x */
 323         DEF_MOD("vspd2",                 621,   R8A7795_CLK_S0D2),
 324         DEF_MOD("vspd1",                 622,   R8A7795_CLK_S0D2),
 325         DEF_MOD("vspd0",                 623,   R8A7795_CLK_S0D2),
 326         DEF_MOD("vspbc",                 624,   R8A7795_CLK_S0D1),
 327         DEF_MOD("vspbd",                 626,   R8A7795_CLK_S0D1),
 328         DEF_MOD("vspi2",                 629,   R8A7795_CLK_S2D1), /* ES1.x */
 329         DEF_MOD("vspi1",                 630,   R8A7795_CLK_S0D1),
 330         DEF_MOD("vspi0",                 631,   R8A7795_CLK_S0D1),
 331         DEF_MOD("ehci3",                 700,   R8A7795_CLK_S3D4),
 332         DEF_MOD("ehci2",                 701,   R8A7795_CLK_S3D4),
 333         DEF_MOD("ehci1",                 702,   R8A7795_CLK_S3D4),
 334         DEF_MOD("ehci0",                 703,   R8A7795_CLK_S3D4),
 335         DEF_MOD("hsusb",                 704,   R8A7795_CLK_S3D4),
 336         DEF_MOD("hsusb3",                705,   R8A7795_CLK_S3D4),
 337         DEF_MOD("csi21",                 713,   R8A7795_CLK_CSI0), /* ES1.x */
 338         DEF_MOD("csi20",                 714,   R8A7795_CLK_CSI0),
 339         DEF_MOD("csi41",                 715,   R8A7795_CLK_CSI0),
 340         DEF_MOD("csi40",                 716,   R8A7795_CLK_CSI0),
 341         DEF_MOD("du3",                   721,   R8A7795_CLK_S2D1),
 342         DEF_MOD("du2",                   722,   R8A7795_CLK_S2D1),
 343         DEF_MOD("du1",                   723,   R8A7795_CLK_S2D1),
 344         DEF_MOD("du0",                   724,   R8A7795_CLK_S2D1),
 345         DEF_MOD("lvds",                  727,   R8A7795_CLK_S0D4),
 346         DEF_MOD("hdmi1",                 728,   R8A7795_CLK_HDMI),
 347         DEF_MOD("hdmi0",                 729,   R8A7795_CLK_HDMI),
 348         DEF_MOD("vin7",                  804,   R8A7795_CLK_S0D2),
 349         DEF_MOD("vin6",                  805,   R8A7795_CLK_S0D2),
 350         DEF_MOD("vin5",                  806,   R8A7795_CLK_S0D2),
 351         DEF_MOD("vin4",                  807,   R8A7795_CLK_S0D2),
 352         DEF_MOD("vin3",                  808,   R8A7795_CLK_S0D2),
 353         DEF_MOD("vin2",                  809,   R8A7795_CLK_S0D2),
 354         DEF_MOD("vin1",                  810,   R8A7795_CLK_S0D2),
 355         DEF_MOD("vin0",                  811,   R8A7795_CLK_S0D2),
 356         DEF_MOD("etheravb",              812,   R8A7795_CLK_S0D6),
 357         DEF_MOD("sata0",                 815,   R8A7795_CLK_S3D2),
 358         DEF_MOD("imr3",                  820,   R8A7795_CLK_S0D2),
 359         DEF_MOD("imr2",                  821,   R8A7795_CLK_S0D2),
 360         DEF_MOD("imr1",                  822,   R8A7795_CLK_S0D2),
 361         DEF_MOD("imr0",                  823,   R8A7795_CLK_S0D2),
 362         DEF_MOD("gpio7",                 905,   R8A7795_CLK_S3D4),
 363         DEF_MOD("gpio6",                 906,   R8A7795_CLK_S3D4),
 364         DEF_MOD("gpio5",                 907,   R8A7795_CLK_S3D4),
 365         DEF_MOD("gpio4",                 908,   R8A7795_CLK_S3D4),
 366         DEF_MOD("gpio3",                 909,   R8A7795_CLK_S3D4),
 367         DEF_MOD("gpio2",                 910,   R8A7795_CLK_S3D4),
 368         DEF_MOD("gpio1",                 911,   R8A7795_CLK_S3D4),
 369         DEF_MOD("gpio0",                 912,   R8A7795_CLK_S3D4),
 370         DEF_MOD("can-fd",                914,   R8A7795_CLK_S3D2),
 371         DEF_MOD("can-if1",               915,   R8A7795_CLK_S3D4),
 372         DEF_MOD("can-if0",               916,   R8A7795_CLK_S3D4),
 373         DEF_MOD("rpc",                   917,   R8A7795_CLK_RPC),
 374         DEF_MOD("i2c6",                  918,   R8A7795_CLK_S0D6),
 375         DEF_MOD("i2c5",                  919,   R8A7795_CLK_S0D6),
 376         DEF_MOD("i2c-dvfs",              926,   R8A7795_CLK_CP),
 377         DEF_MOD("i2c4",                  927,   R8A7795_CLK_S0D6),
 378         DEF_MOD("i2c3",                  928,   R8A7795_CLK_S0D6),
 379         DEF_MOD("i2c2",                  929,   R8A7795_CLK_S3D2),
 380         DEF_MOD("i2c1",                  930,   R8A7795_CLK_S3D2),
 381         DEF_MOD("i2c0",                  931,   R8A7795_CLK_S3D2),
 382         DEF_MOD("ssi-all",              1005,   R8A7795_CLK_S3D4),
 383         DEF_MOD("ssi9",                 1006,   MOD_CLK_ID(1005)),
 384         DEF_MOD("ssi8",                 1007,   MOD_CLK_ID(1005)),
 385         DEF_MOD("ssi7",                 1008,   MOD_CLK_ID(1005)),
 386         DEF_MOD("ssi6",                 1009,   MOD_CLK_ID(1005)),
 387         DEF_MOD("ssi5",                 1010,   MOD_CLK_ID(1005)),
 388         DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 389         DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 390         DEF_MOD("ssi2",                 1013,   MOD_CLK_ID(1005)),
 391         DEF_MOD("ssi1",                 1014,   MOD_CLK_ID(1005)),
 392         DEF_MOD("ssi0",                 1015,   MOD_CLK_ID(1005)),
 393         DEF_MOD("scu-all",              1017,   R8A7795_CLK_S3D4),
 394         DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 395         DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 396         DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 397         DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 398         DEF_MOD("scu-src9",             1022,   MOD_CLK_ID(1017)),
 399         DEF_MOD("scu-src8",             1023,   MOD_CLK_ID(1017)),
 400         DEF_MOD("scu-src7",             1024,   MOD_CLK_ID(1017)),
 401         DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 402         DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 403         DEF_MOD("scu-src4",             1027,   MOD_CLK_ID(1017)),
 404         DEF_MOD("scu-src3",             1028,   MOD_CLK_ID(1017)),
 405         DEF_MOD("scu-src2",             1029,   MOD_CLK_ID(1017)),
 406         DEF_MOD("scu-src1",             1030,   MOD_CLK_ID(1017)),
 407         DEF_MOD("scu-src0",             1031,   MOD_CLK_ID(1017)),
 408 };
 409
 410 static const struct cpg_core_clk r8a7796_core_clks[] = {
 411         /* External Clock Inputs */
 412         DEF_INPUT("extal",      CLK_EXTAL),
 413         DEF_INPUT("extalr",     CLK_EXTALR),
 414
 415         /* Internal Core Clocks */
 416         DEF_BASE(".main",       CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
 417         DEF_BASE(".pll0",       CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
 418         DEF_BASE(".pll1",       CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
 419         DEF_BASE(".pll2",       CLK_PLL2, CLK_TYPE_GEN3_PLL2, CLK_MAIN),
 420         DEF_BASE(".pll3",       CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
 421         DEF_BASE(".pll4",       CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
 422
 423         DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2,     CLK_PLL1,       2, 1),
 424         DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4,     CLK_PLL1_DIV2,  2, 1),
 425         DEF_FIXED(".s0",        CLK_S0,            CLK_PLL1_DIV2,  2, 1),
 426         DEF_FIXED(".s1",        CLK_S1,            CLK_PLL1_DIV2,  3, 1),
 427         DEF_FIXED(".s2",        CLK_S2,            CLK_PLL1_DIV2,  4, 1),
 428         DEF_FIXED(".s3",        CLK_S3,            CLK_PLL1_DIV2,  6, 1),
 429         DEF_FIXED(".sdsrc",     CLK_SDSRC,         CLK_PLL1_DIV2,  2, 1),
 430         DEF_FIXED(".rpcsrc",    CLK_RPCSRC,        CLK_PLL1,       2, 1),
 431
 432         /* Core Clock Outputs */
 433         DEF_FIXED("ztr",        R8A7796_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
 434         DEF_FIXED("ztrd2",      R8A7796_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
 435         DEF_FIXED("zt",         R8A7796_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
 436         DEF_FIXED("zx",         R8A7796_CLK_ZX,    CLK_PLL1_DIV2,  2, 1),
 437         DEF_FIXED("s0d1",       R8A7796_CLK_S0D1,  CLK_S0,         1, 1),
 438         DEF_FIXED("s0d2",       R8A7796_CLK_S0D2,  CLK_S0,         2, 1),
 439         DEF_FIXED("s0d3",       R8A7796_CLK_S0D3,  CLK_S0,         3, 1),
 440         DEF_FIXED("s0d4",       R8A7796_CLK_S0D4,  CLK_S0,         4, 1),
 441         DEF_FIXED("s0d6",       R8A7796_CLK_S0D6,  CLK_S0,         6, 1),
 442         DEF_FIXED("s0d8",       R8A7796_CLK_S0D8,  CLK_S0,         8, 1),
 443         DEF_FIXED("s0d12",      R8A7796_CLK_S0D12, CLK_S0,        12, 1),
 444         DEF_FIXED("s1d1",       R8A7796_CLK_S1D1,  CLK_S1,         1, 1),
 445         DEF_FIXED("s1d2",       R8A7796_CLK_S1D2,  CLK_S1,         2, 1),
 446         DEF_FIXED("s1d4",       R8A7796_CLK_S1D4,  CLK_S1,         4, 1),
 447         DEF_FIXED("s2d1",       R8A7796_CLK_S2D1,  CLK_S2,         1, 1),
 448         DEF_FIXED("s2d2",       R8A7796_CLK_S2D2,  CLK_S2,         2, 1),
 449         DEF_FIXED("s2d4",       R8A7796_CLK_S2D4,  CLK_S2,         4, 1),
 450         DEF_FIXED("s3d1",       R8A7796_CLK_S3D1,  CLK_S3,         1, 1),
 451         DEF_FIXED("s3d2",       R8A7796_CLK_S3D2,  CLK_S3,         2, 1),
 452         DEF_FIXED("s3d4",       R8A7796_CLK_S3D4,  CLK_S3,         4, 1),
 453
 454         DEF_GEN3_SD("sd0",      R8A7796_CLK_SD0,   CLK_SDSRC,     0x074),
 455         DEF_GEN3_SD("sd1",      R8A7796_CLK_SD1,   CLK_SDSRC,     0x078),
 456         DEF_GEN3_SD("sd2",      R8A7796_CLK_SD2,   CLK_SDSRC,     0x268),
 457         DEF_GEN3_SD("sd3",      R8A7796_CLK_SD3,   CLK_SDSRC,     0x26c),
 458
 459         DEF_GEN3_RPC("rpc",     R8A7796_CLK_RPC,   CLK_RPCSRC,    0x238),
 460
 461         DEF_FIXED("cl",         R8A7796_CLK_CL,    CLK_PLL1_DIV2, 48, 1),
 462         DEF_FIXED("cp",         R8A7796_CLK_CP,    CLK_EXTAL,      2, 1),
 463
 464         /* NOTE: HDMI, CSI, CAN etc. clock are missing */
 465
 466         DEF_BASE("r",           R8A7796_CLK_R,     CLK_TYPE_GEN3_R, CLK_RINT),
 467 };
 468
 469 static const struct mssr_mod_clk r8a7796_mod_clks[] = {
 470         DEF_MOD("scif5",                 202,   R8A7796_CLK_S3D4),
 471         DEF_MOD("scif4",                 203,   R8A7796_CLK_S3D4),
 472         DEF_MOD("scif3",                 204,   R8A7796_CLK_S3D4),
 473         DEF_MOD("scif1",                 206,   R8A7796_CLK_S3D4),
 474         DEF_MOD("scif0",                 207,   R8A7796_CLK_S3D4),
 475         DEF_MOD("msiof3",                208,   R8A7796_CLK_MSO),
 476         DEF_MOD("msiof2",                209,   R8A7796_CLK_MSO),
 477         DEF_MOD("msiof1",                210,   R8A7796_CLK_MSO),
 478         DEF_MOD("msiof0",                211,   R8A7796_CLK_MSO),
 479         DEF_MOD("sys-dmac2",             217,   R8A7796_CLK_S0D3),
 480         DEF_MOD("sys-dmac1",             218,   R8A7796_CLK_S0D3),
 481         DEF_MOD("sys-dmac0",             219,   R8A7796_CLK_S0D3),
 482         DEF_MOD("cmt3",                  300,   R8A7796_CLK_R),
 483         DEF_MOD("cmt2",                  301,   R8A7796_CLK_R),
 484         DEF_MOD("cmt1",                  302,   R8A7796_CLK_R),
 485         DEF_MOD("cmt0",                  303,   R8A7796_CLK_R),
 486         DEF_MOD("scif2",                 310,   R8A7796_CLK_S3D4),
 487         DEF_MOD("sdif3",                 311,   R8A7796_CLK_SD3),
 488         DEF_MOD("sdif2",                 312,   R8A7796_CLK_SD2),
 489         DEF_MOD("sdif1",                 313,   R8A7796_CLK_SD1),
 490         DEF_MOD("sdif0",                 314,   R8A7796_CLK_SD0),
 491         DEF_MOD("pcie1",                 318,   R8A7796_CLK_S3D1),
 492         DEF_MOD("pcie0",                 319,   R8A7796_CLK_S3D1),
 493         DEF_MOD("usb-dmac0",             330,   R8A7796_CLK_S3D1),
 494         DEF_MOD("usb-dmac1",             331,   R8A7796_CLK_S3D1),
 495         DEF_MOD("rwdt",                  402,   R8A7796_CLK_R),
 496         DEF_MOD("intc-ex",               407,   R8A7796_CLK_CP),
 497         DEF_MOD("intc-ap",               408,   R8A7796_CLK_S3D1),
 498         DEF_MOD("audmac1",               501,   R8A7796_CLK_S0D3),
 499         DEF_MOD("audmac0",               502,   R8A7796_CLK_S0D3),
 500         DEF_MOD("drif7",                 508,   R8A7796_CLK_S3D2),
 501         DEF_MOD("drif6",                 509,   R8A7796_CLK_S3D2),
 502         DEF_MOD("drif5",                 510,   R8A7796_CLK_S3D2),
 503         DEF_MOD("drif4",                 511,   R8A7796_CLK_S3D2),
 504         DEF_MOD("drif3",                 512,   R8A7796_CLK_S3D2),
 505         DEF_MOD("drif2",                 513,   R8A7796_CLK_S3D2),
 506         DEF_MOD("drif1",                 514,   R8A7796_CLK_S3D2),
 507         DEF_MOD("drif0",                 515,   R8A7796_CLK_S3D2),
 508         DEF_MOD("hscif4",                516,   R8A7796_CLK_S3D1),
 509         DEF_MOD("hscif3",                517,   R8A7796_CLK_S3D1),
 510         DEF_MOD("hscif2",                518,   R8A7796_CLK_S3D1),
 511         DEF_MOD("hscif1",                519,   R8A7796_CLK_S3D1),
 512         DEF_MOD("hscif0",                520,   R8A7796_CLK_S3D1),
 513         DEF_MOD("thermal",               522,   R8A7796_CLK_CP),
 514         DEF_MOD("pwm",                   523,   R8A7796_CLK_S0D12),
 515         DEF_MOD("fcpvd2",                601,   R8A7796_CLK_S0D2),
 516         DEF_MOD("fcpvd1",                602,   R8A7796_CLK_S0D2),
 517         DEF_MOD("fcpvd0",                603,   R8A7796_CLK_S0D2),
 518         DEF_MOD("fcpvb0",                607,   R8A7796_CLK_S0D1),
 519         DEF_MOD("fcpvi0",                611,   R8A7796_CLK_S0D1),
 520         DEF_MOD("fcpf0",                 615,   R8A7796_CLK_S0D1),
 521         DEF_MOD("fcpci0",                617,   R8A7796_CLK_S0D2),
 522         DEF_MOD("fcpcs",                 619,   R8A7796_CLK_S0D2),
 523         DEF_MOD("vspd2",                 621,   R8A7796_CLK_S0D2),
 524         DEF_MOD("vspd1",                 622,   R8A7796_CLK_S0D2),
 525         DEF_MOD("vspd0",                 623,   R8A7796_CLK_S0D2),
 526         DEF_MOD("vspb",                  626,   R8A7796_CLK_S0D1),
 527         DEF_MOD("vspi0",                 631,   R8A7796_CLK_S0D1),
 528         DEF_MOD("ehci1",                 702,   R8A7796_CLK_S3D4),
 529         DEF_MOD("ehci0",                 703,   R8A7796_CLK_S3D4),
 530         DEF_MOD("hsusb",                 704,   R8A7796_CLK_S3D4),
 531         DEF_MOD("csi20",                 714,   R8A7796_CLK_CSI0),
 532         DEF_MOD("csi40",                 716,   R8A7796_CLK_CSI0),
 533         DEF_MOD("du2",                   722,   R8A7796_CLK_S2D1),
 534         DEF_MOD("du1",                   723,   R8A7796_CLK_S2D1),
 535         DEF_MOD("du0",                   724,   R8A7796_CLK_S2D1),
 536         DEF_MOD("lvds",                  727,   R8A7796_CLK_S2D1),
 537         DEF_MOD("hdmi0",                 729,   R8A7796_CLK_HDMI),
 538         DEF_MOD("vin7",                  804,   R8A7796_CLK_S0D2),
 539         DEF_MOD("vin6",                  805,   R8A7796_CLK_S0D2),
 540         DEF_MOD("vin5",                  806,   R8A7796_CLK_S0D2),
 541         DEF_MOD("vin4",                  807,   R8A7796_CLK_S0D2),
 542         DEF_MOD("vin3",                  808,   R8A7796_CLK_S0D2),
 543         DEF_MOD("vin2",                  809,   R8A7796_CLK_S0D2),
 544         DEF_MOD("vin1",                  810,   R8A7796_CLK_S0D2),
 545         DEF_MOD("vin0",                  811,   R8A7796_CLK_S0D2),
 546         DEF_MOD("etheravb",              812,   R8A7796_CLK_S0D6),
 547         DEF_MOD("imr1",                  822,   R8A7796_CLK_S0D2),
 548         DEF_MOD("imr0",                  823,   R8A7796_CLK_S0D2),
 549         DEF_MOD("gpio7",                 905,   R8A7796_CLK_S3D4),
 550         DEF_MOD("gpio6",                 906,   R8A7796_CLK_S3D4),
 551         DEF_MOD("gpio5",                 907,   R8A7796_CLK_S3D4),
 552         DEF_MOD("gpio4",                 908,   R8A7796_CLK_S3D4),
 553         DEF_MOD("gpio3",                 909,   R8A7796_CLK_S3D4),
 554         DEF_MOD("gpio2",                 910,   R8A7796_CLK_S3D4),
 555         DEF_MOD("gpio1",                 911,   R8A7796_CLK_S3D4),
 556         DEF_MOD("gpio0",                 912,   R8A7796_CLK_S3D4),
 557         DEF_MOD("can-fd",                914,   R8A7796_CLK_S3D2),
 558         DEF_MOD("can-if1",               915,   R8A7796_CLK_S3D4),
 559         DEF_MOD("can-if0",               916,   R8A7796_CLK_S3D4),
 560         DEF_MOD("rpc",                   917,   R8A7795_CLK_RPC),
 561         DEF_MOD("i2c6",                  918,   R8A7796_CLK_S0D6),
 562         DEF_MOD("i2c5",                  919,   R8A7796_CLK_S0D6),
 563         DEF_MOD("i2c-dvfs",              926,   R8A7796_CLK_CP),
 564         DEF_MOD("i2c4",                  927,   R8A7796_CLK_S0D6),
 565         DEF_MOD("i2c3",                  928,   R8A7796_CLK_S0D6),
 566         DEF_MOD("i2c2",                  929,   R8A7796_CLK_S3D2),
 567         DEF_MOD("i2c1",                  930,   R8A7796_CLK_S3D2),
 568         DEF_MOD("i2c0",                  931,   R8A7796_CLK_S3D2),
 569         DEF_MOD("ssi-all",              1005,   R8A7796_CLK_S3D4),
 570         DEF_MOD("ssi9",                 1006,   MOD_CLK_ID(1005)),
 571         DEF_MOD("ssi8",                 1007,   MOD_CLK_ID(1005)),
 572         DEF_MOD("ssi7",                 1008,   MOD_CLK_ID(1005)),
 573         DEF_MOD("ssi6",                 1009,   MOD_CLK_ID(1005)),
 574         DEF_MOD("ssi5",                 1010,   MOD_CLK_ID(1005)),
 575         DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 576         DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 577         DEF_MOD("ssi2",                 1013,   MOD_CLK_ID(1005)),
 578         DEF_MOD("ssi1",                 1014,   MOD_CLK_ID(1005)),
 579         DEF_MOD("ssi0",                 1015,   MOD_CLK_ID(1005)),
 580         DEF_MOD("scu-all",              1017,   R8A7796_CLK_S3D4),
 581         DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 582         DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 583         DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 584         DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 585         DEF_MOD("scu-src9",             1022,   MOD_CLK_ID(1017)),
 586         DEF_MOD("scu-src8",             1023,   MOD_CLK_ID(1017)),
 587         DEF_MOD("scu-src7",             1024,   MOD_CLK_ID(1017)),
 588         DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 589         DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 590         DEF_MOD("scu-src4",             1027,   MOD_CLK_ID(1017)),
 591         DEF_MOD("scu-src3",             1028,   MOD_CLK_ID(1017)),
 592         DEF_MOD("scu-src2",             1029,   MOD_CLK_ID(1017)),
 593         DEF_MOD("scu-src1",             1030,   MOD_CLK_ID(1017)),
 594         DEF_MOD("scu-src0",             1031,   MOD_CLK_ID(1017)),
 595 };
 596
 597 /*
 598  * CPG Clock Data
 599  */
 600
 601 /*
 602  *   MD         EXTAL           PLL0    PLL1    PLL2    PLL3    PLL4
 603  * 14 13 19 17  (MHz)
 604  *-------------------------------------------------------------------
 605  * 0  0  0  0   16.66 x 1       x180    x192    x144    x192    x144
 606  * 0  0  0  1   16.66 x 1       x180    x192    x144    x128    x144
 607  * 0  0  1  0   Prohibited setting
 608  * 0  0  1  1   16.66 x 1       x180    x192    x144    x192    x144
 609  * 0  1  0  0   20    x 1       x150    x160    x120    x160    x120
 610  * 0  1  0  1   20    x 1       x150    x160    x120    x106    x120
 611  * 0  1  1  0   Prohibited setting
 612  * 0  1  1  1   20    x 1       x150    x160    x120    x160    x120
 613  * 1  0  0  0   25    x 1       x120    x128    x96     x128    x96
 614  * 1  0  0  1   25    x 1       x120    x128    x96     x84     x96
 615  * 1  0  1  0   Prohibited setting
 616  * 1  0  1  1   25    x 1       x120    x128    x96     x128    x96
 617  * 1  1  0  0   33.33 / 2       x180    x192    x144    x192    x144
 618  * 1  1  0  1   33.33 / 2       x180    x192    x144    x128    x144
 619  * 1  1  1  0   Prohibited setting
 620  * 1  1  1  1   33.33 / 2       x180    x192    x144    x192    x144
 621  */
 622 #define CPG_PLL_CONFIG_INDEX(md)        ((((md) & BIT(14)) >> 11) | \
 623                                          (((md) & BIT(13)) >> 11) | \
 624                                          (((md) & BIT(19)) >> 18) | \
 625                                          (((md) & BIT(17)) >> 17))
 626
 627 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] = {
 628         /* EXTAL div    PLL1 mult       PLL3 mult */
 629         { 1,            192,            192,    },
 630         { 1,            192,            128,    },
 631         { 0, /* Prohibited setting */           },
 632         { 1,            192,            192,    },
 633         { 1,            160,            160,    },
 634         { 1,            160,            106,    },
 635         { 0, /* Prohibited setting */           },
 636         { 1,            160,            160,    },
 637         { 1,            128,            128,    },
 638         { 1,            128,            84,     },
 639         { 0, /* Prohibited setting */           },
 640         { 1,            128,            128,    },
 641         { 2,            192,            192,    },
 642         { 2,            192,            128,    },
 643         { 0, /* Prohibited setting */           },
 644         { 2,            192,            192,    },
 645 };
 646
 647 /*
 648  * SDn Clock
 649  */
 650 #define CPG_SD_STP_HCK          BIT(9)
 651 #define CPG_SD_STP_CK           BIT(8)
 652
 653 #define CPG_SD_STP_MASK         (CPG_SD_STP_HCK | CPG_SD_STP_CK)
 654 #define CPG_SD_FC_MASK          (0x7 << 2 | 0x3 << 0)
 655
 656 #define CPG_SD_DIV_TABLE_DATA(stp_hck, stp_ck, sd_srcfc, sd_fc, sd_div) \
 657 { \
 658         .val = ((stp_hck) ? CPG_SD_STP_HCK : 0) | \
 659                ((stp_ck) ? CPG_SD_STP_CK : 0) | \
 660                ((sd_srcfc) << 2) | \
 661                ((sd_fc) << 0), \
 662         .div = (sd_div), \
 663 }
 664
 665 struct sd_div_table {
 666         u32 val;
 667         unsigned int div;
 668 };
 669
 670 /* SDn divider
 671  *                     sd_srcfc   sd_fc   div
 672  * stp_hck   stp_ck    (div)      (div)     = sd_srcfc x sd_fc
 673  *-------------------------------------------------------------------
 674  *  0         0         0 (1)      1 (4)      4
 675  *  0         0         1 (2)      1 (4)      8
 676  *  1         0         2 (4)      1 (4)     16
 677  *  1         0         3 (8)      1 (4)     32
 678  *  1         0         4 (16)     1 (4)     64
 679  *  0         0         0 (1)      0 (2)      2
 680  *  0         0         1 (2)      0 (2)      4
 681  *  1         0         2 (4)      0 (2)      8
 682  *  1         0         3 (8)      0 (2)     16
 683  *  1         0         4 (16)     0 (2)     32
 684  */
 685 static const struct sd_div_table cpg_sd_div_table[] = {
 686 /*      CPG_SD_DIV_TABLE_DATA(stp_hck,  stp_ck,   sd_srcfc,   sd_fc,  sd_div) */
 687         CPG_SD_DIV_TABLE_DATA(0,        0,        0,          1,        4),
 688         CPG_SD_DIV_TABLE_DATA(0,        0,        1,          1,        8),
 689         CPG_SD_DIV_TABLE_DATA(1,        0,        2,          1,       16),
 690         CPG_SD_DIV_TABLE_DATA(1,        0,        3,          1,       32),
 691         CPG_SD_DIV_TABLE_DATA(1,        0,        4,          1,       64),
 692         CPG_SD_DIV_TABLE_DATA(0,        0,        0,          0,        2),
 693         CPG_SD_DIV_TABLE_DATA(0,        0,        1,          0,        4),
 694         CPG_SD_DIV_TABLE_DATA(1,        0,        2,          0,        8),
 695         CPG_SD_DIV_TABLE_DATA(1,        0,        3,          0,       16),
 696         CPG_SD_DIV_TABLE_DATA(1,        0,        4,          0,       32),
 697 };
 698
 699 static bool gen3_clk_is_mod(struct clk *clk)
 700 {
 701         return (clk->id >> 16) == CPG_MOD;
 702 }
 703
 704 static int gen3_clk_get_mod(struct clk *clk, const struct mssr_mod_clk **mssr)
 705 {
 706         struct gen3_clk_priv *priv = dev_get_priv(clk->dev);
 707         const unsigned long clkid = clk->id & 0xffff;
 708         int i;
 709
 710         if (!gen3_clk_is_mod(clk))
 711                 return -EINVAL;
 712
 713         for (i = 0; i < priv->mod_clk_size; i++) {
 714                 if (priv->mod_clk[i].id != MOD_CLK_ID(clkid))
 715                         continue;
 716
 717                 *mssr = &priv->mod_clk[i];
 718                 return 0;
 719         }
 720
 721         return -ENODEV;
 722 }
 723
 724 static int gen3_clk_get_core(struct clk *clk, const struct cpg_core_clk **core)
 725 {
 726         struct gen3_clk_priv *priv = dev_get_priv(clk->dev);
 727         const unsigned long clkid = clk->id & 0xffff;
 728         int i;
 729
 730         if (gen3_clk_is_mod(clk))
 731                 return -EINVAL;
 732
 733         for (i = 0; i < priv->core_clk_size; i++) {
 734                 if (priv->core_clk[i].id != clkid)
 735                         continue;
 736
 737                 *core = &priv->core_clk[i];
 738                 return 0;
 739         }
 740
 741         return -ENODEV;
 742 }
 743
 744 static int gen3_clk_get_parent(struct clk *clk, struct clk *parent)
 745 {
 746         const struct cpg_core_clk *core;
 747         const struct mssr_mod_clk *mssr;
 748         int ret;
 749
 750         if (gen3_clk_is_mod(clk)) {
 751                 ret = gen3_clk_get_mod(clk, &mssr);
 752                 if (ret)
 753                         return ret;
 754
 755                 parent->id = mssr->parent;
 756         } else {
 757                 ret = gen3_clk_get_core(clk, &core);
 758                 if (ret)
 759                         return ret;
 760
 761                 if (core->type == CLK_TYPE_IN)
 762                         parent->id = ~0;        /* Top-level clock */
 763                 else
 764                         parent->id = core->parent;
 765         }
 766
 767         parent->dev = clk->dev;
 768
 769         return 0;
 770 }
 771
 772 static int gen3_clk_setup_sdif_div(struct clk *clk)
 773 {
 774         struct gen3_clk_priv *priv = dev_get_priv(clk->dev);
 775         const struct cpg_core_clk *core;
 776         struct clk parent;
 777         int ret;
 778
 779         ret = gen3_clk_get_parent(clk, &parent);
 780         if (ret) {
 781                 printf("%s[%i] parent fail, ret=%i\n", __func__, __LINE__, ret);
 782                 return ret;
 783         }
 784
 785         if (gen3_clk_is_mod(&parent))
 786                 return 0;
 787
 788         ret = gen3_clk_get_core(&parent, &core);
 789         if (ret)
 790                 return ret;
 791
 792         if (core->type != CLK_TYPE_GEN3_SD)
 793                 return 0;
 794
 795         debug("%s[%i] SDIF offset=%x\n", __func__, __LINE__, core->offset);
 796
 797         writel(1, priv->base + core->offset);
 798
 799         return 0;
 800 }
 801
 802 static int gen3_clk_endisable(struct clk *clk, bool enable)
 803 {
 804         struct gen3_clk_priv *priv = dev_get_priv(clk->dev);
 805         const unsigned long clkid = clk->id & 0xffff;
 806         const unsigned int reg = clkid / 100;
 807         const unsigned int bit = clkid % 100;
 808         const u32 bitmask = BIT(bit);
 809         int ret;
 810
 811         if (!gen3_clk_is_mod(clk))
 812                 return -EINVAL;
 813
 814         debug("%s[%i] MSTP %lu=%02u/%02u %s\n", __func__, __LINE__,
 815               clkid, reg, bit, enable ? "ON" : "OFF");
 816
 817         if (enable) {
 818                 ret = gen3_clk_setup_sdif_div(clk);
 819                 if (ret)
 820                         return ret;
 821                 clrbits_le32(priv->base + SMSTPCR(reg), bitmask);
 822                 return wait_for_bit("MSTP", priv->base + MSTPSR(reg),
 823                                     bitmask, 0, 100, 0);
 824         } else {
 825                 setbits_le32(priv->base + SMSTPCR(reg), bitmask);
 826                 return 0;
 827         }
 828 }
 829
 830 static int gen3_clk_enable(struct clk *clk)
 831 {
 832         return gen3_clk_endisable(clk, true);
 833 }
 834
 835 static int gen3_clk_disable(struct clk *clk)
 836 {
 837         return gen3_clk_endisable(clk, false);
 838 }
 839
 840 static ulong gen3_clk_get_rate(struct clk *clk)
 841 {
 842         struct gen3_clk_priv *priv = dev_get_priv(clk->dev);
 843         struct clk parent;
 844         const struct cpg_core_clk *core;
 845         const struct rcar_gen3_cpg_pll_config *pll_config =
 846                                         priv->cpg_pll_config;
 847         u32 value, mult, prediv, postdiv, rate = 0;
 848         int i, ret;
 849
 850         debug("%s[%i] Clock: id=%lu\n", __func__, __LINE__, clk->id);
 851
 852         ret = gen3_clk_get_parent(clk, &parent);
 853         if (ret) {
 854                 printf("%s[%i] parent fail, ret=%i\n", __func__, __LINE__, ret);
 855                 return ret;
 856         }
 857
 858         if (gen3_clk_is_mod(clk)) {
 859                 rate = gen3_clk_get_rate(&parent);
 860                 debug("%s[%i] MOD clk: parent=%lu => rate=%u\n",
 861                       __func__, __LINE__, parent.id, rate);
 862                 return rate;
 863         }
 864
 865         ret = gen3_clk_get_core(clk, &core);
 866         if (ret)
 867                 return ret;
 868
 869         switch (core->type) {
 870         case CLK_TYPE_IN:
 871                 if (core->id == CLK_EXTAL) {
 872                         rate = clk_get_rate(&priv->clk_extal);
 873                         debug("%s[%i] EXTAL clk: rate=%u\n",
 874                               __func__, __LINE__, rate);
 875                         return rate;
 876                 }
 877
 878                 if (core->id == CLK_EXTALR) {
 879                         rate = clk_get_rate(&priv->clk_extalr);
 880                         debug("%s[%i] EXTALR clk: rate=%u\n",
 881                               __func__, __LINE__, rate);
 882                         return rate;
 883                 }
 884
 885                 return -EINVAL;
 886
 887         case CLK_TYPE_GEN3_MAIN:
 888                 rate = gen3_clk_get_rate(&parent) / pll_config->extal_div;
 889                 debug("%s[%i] MAIN clk: parent=%i extal_div=%i => rate=%u\n",
 890                       __func__, __LINE__,
 891                       core->parent, pll_config->extal_div, rate);
 892                 return rate;
 893
 894         case CLK_TYPE_GEN3_PLL0:
 895                 value = readl(priv->base + CPG_PLL0CR);
 896                 mult = (((value >> 24) & 0x7f) + 1) * 2;
 897                 rate = gen3_clk_get_rate(&parent) * mult;
 898                 debug("%s[%i] PLL0 clk: parent=%i mult=%u => rate=%u\n",
 899                       __func__, __LINE__, core->parent, mult, rate);
 900                 return rate;
 901
 902         case CLK_TYPE_GEN3_PLL1:
 903                 rate = gen3_clk_get_rate(&parent) * pll_config->pll1_mult;
 904                 debug("%s[%i] PLL1 clk: parent=%i mul=%i => rate=%u\n",
 905                       __func__, __LINE__,
 906                       core->parent, pll_config->pll1_mult, rate);
 907                 return rate;
 908
 909         case CLK_TYPE_GEN3_PLL2:
 910                 value = readl(priv->base + CPG_PLL2CR);
 911                 mult = (((value >> 24) & 0x7f) + 1) * 2;
 912                 rate = gen3_clk_get_rate(&parent) * mult;
 913                 debug("%s[%i] PLL2 clk: parent=%i mult=%u => rate=%u\n",
 914                       __func__, __LINE__, core->parent, mult, rate);
 915                 return rate;
 916
 917         case CLK_TYPE_GEN3_PLL3:
 918                 rate = gen3_clk_get_rate(&parent) * pll_config->pll3_mult;
 919                 debug("%s[%i] PLL3 clk: parent=%i mul=%i => rate=%u\n",
 920                       __func__, __LINE__,
 921                       core->parent, pll_config->pll3_mult, rate);
 922                 return rate;
 923
 924         case CLK_TYPE_GEN3_PLL4:
 925                 value = readl(priv->base + CPG_PLL4CR);
 926                 mult = (((value >> 24) & 0x7f) + 1) * 2;
 927                 rate = gen3_clk_get_rate(&parent) * mult;
 928                 debug("%s[%i] PLL4 clk: parent=%i mult=%u => rate=%u\n",
 929                       __func__, __LINE__, core->parent, mult, rate);
 930                 return rate;
 931
 932         case CLK_TYPE_FF:
 933                 rate = (gen3_clk_get_rate(&parent) * core->mult) / core->div;
 934                 debug("%s[%i] FIXED clk: parent=%i div=%i mul=%i => rate=%u\n",
 935                       __func__, __LINE__,
 936                       core->parent, core->mult, core->div, rate);
 937                 return rate;
 938
 939         case CLK_TYPE_GEN3_SD:          /* FIXME */
 940                 value = readl(priv->base + core->offset);
 941                 value &= CPG_SD_STP_MASK | CPG_SD_FC_MASK;
 942
 943                 for (i = 0; i < ARRAY_SIZE(cpg_sd_div_table); i++) {
 944                         if (cpg_sd_div_table[i].val != value)
 945                                 continue;
 946
 947                         rate = gen3_clk_get_rate(&parent) /
 948                                cpg_sd_div_table[i].div;
 949                         debug("%s[%i] SD clk: parent=%i div=%i => rate=%u\n",
 950                               __func__, __LINE__,
 951                               core->parent, cpg_sd_div_table[i].div, rate);
 952
 953                         return rate;
 954                 }
 955
 956                 return -EINVAL;
 957
 958         case CLK_TYPE_GEN3_RPC:
 959                 rate = gen3_clk_get_rate(&parent);
 960
 961                 value = readl(priv->base + core->offset);
 962
 963                 prediv = (value >> CPG_RPC_PREDIV_OFFSET) &
 964                          CPG_RPC_PREDIV_MASK;
 965                 if (prediv == 2)
 966                         rate /= 5;
 967                 else if (prediv == 3)
 968                         rate /= 6;
 969                 else
 970                         return -EINVAL;
 971
 972                 postdiv = (value >> CPG_RPC_POSTDIV_OFFSET) &
 973                           CPG_RPC_POSTDIV_MASK;
 974                 rate /= postdiv + 1;
 975
 976                 debug("%s[%i] RPC clk: parent=%i prediv=%i postdiv=%i => rate=%u\n",
 977                       __func__, __LINE__,
 978                       core->parent, prediv, postdiv, rate);
 979
 980                 return -EINVAL;
 981
 982         }
 983
 984         printf("%s[%i] unknown fail\n", __func__, __LINE__);
 985
 986         return -ENOENT;
 987 }
 988
 989 static ulong gen3_clk_set_rate(struct clk *clk, ulong rate)
 990 {
 991         return gen3_clk_get_rate(clk);
 992 }
 993
 994 static int gen3_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args)
 995 {
 996         if (args->args_count != 2) {
 997                 debug("Invaild args_count: %d\n", args->args_count);
 998                 return -EINVAL;
 999         }
1000
1001         clk->id = (args->args[0] << 16) | args->args[1];
1002
1003         return 0;
1004 }
1005
1006 static const struct clk_ops gen3_clk_ops = {
1007         .enable         = gen3_clk_enable,
1008         .disable        = gen3_clk_disable,
1009         .get_rate       = gen3_clk_get_rate,
1010         .set_rate       = gen3_clk_set_rate,
1011         .of_xlate       = gen3_clk_of_xlate,
1012 };
1013
1014 enum gen3_clk_model {
1015         CLK_R8A7795,
1016         CLK_R8A7796,
1017 };
1018
1019 static int gen3_clk_probe(struct udevice *dev)
1020 {
1021         struct gen3_clk_priv *priv = dev_get_priv(dev);
1022         enum gen3_clk_model model = dev_get_driver_data(dev);
1023         fdt_addr_t rst_base;
1024         u32 cpg_mode;
1025         int ret;
1026
1027         priv->base = (struct gen3_base *)devfdt_get_addr(dev);
1028         if (!priv->base)
1029                 return -EINVAL;
1030
1031         switch (model) {
1032         case CLK_R8A7795:
1033                 priv->core_clk = r8a7795_core_clks;
1034                 priv->core_clk_size = ARRAY_SIZE(r8a7795_core_clks);
1035                 priv->mod_clk = r8a7795_mod_clks;
1036                 priv->mod_clk_size = ARRAY_SIZE(r8a7795_mod_clks);
1037                 ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
1038                                                     "renesas,r8a7795-rst");
1039                 if (ret < 0)
1040                         return ret;
1041                 break;
1042         case CLK_R8A7796:
1043                 priv->core_clk = r8a7796_core_clks;
1044                 priv->core_clk_size = ARRAY_SIZE(r8a7796_core_clks);
1045                 priv->mod_clk = r8a7796_mod_clks;
1046                 priv->mod_clk_size = ARRAY_SIZE(r8a7796_mod_clks);
1047                 ret = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
1048                                                     "renesas,r8a7796-rst");
1049                 if (ret < 0)
1050                         return ret;
1051                 break;
1052         default:
1053                 return -EINVAL;
1054         }
1055
1056         rst_base = fdtdec_get_addr(gd->fdt_blob, ret, "reg");
1057         if (rst_base == FDT_ADDR_T_NONE)
1058                 return -EINVAL;
1059
1060         cpg_mode = readl(rst_base + CPG_RST_MODEMR);
1061
1062         priv->cpg_pll_config = &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
1063         if (!priv->cpg_pll_config->extal_div)
1064                 return -EINVAL;
1065
1066         ret = clk_get_by_name(dev, "extal", &priv->clk_extal);
1067         if (ret < 0)
1068                 return ret;
1069
1070         ret = clk_get_by_name(dev, "extalr", &priv->clk_extalr);
1071         if (ret < 0)
1072                 return ret;
1073
1074         return 0;
1075 }
1076
1077 static const struct udevice_id gen3_clk_ids[] = {
1078         { .compatible = "renesas,r8a7795-cpg-mssr", .data = CLK_R8A7795 },
1079         { .compatible = "renesas,r8a7796-cpg-mssr", .data = CLK_R8A7796 },
1080         { }
1081 };
1082
1083 U_BOOT_DRIVER(clk_gen3) = {
1084         .name           = "clk_gen3",
1085         .id             = UCLASS_CLK,
1086         .of_match       = gen3_clk_ids,
1087         .priv_auto_alloc_size = sizeof(struct gen3_clk_priv),
1088         .ops            = &gen3_clk_ops,
1089         .probe          = gen3_clk_probe,
1090 };