drivers/clk/renesas/r8a774b1-cpg-mssr.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * r8a774b1 Clock Pulse Generator / Module Standby and Software Reset
   4  *
   5  * Copyright (C) 2020 Renesas Electronics Corp.
   6  *
   7  * Based on r8a7796-cpg-mssr.c
   8  *
   9  * Copyright (C) 2016 Glider bvba
  10  */
  11
  12 #include <common.h>
  13 #include <clk-uclass.h>
  14 #include <dm.h>
  15
  16 #include <dt-bindings/clock/r8a774b1-cpg-mssr.h>
  17
  18 #include "renesas-cpg-mssr.h"
  19 #include "rcar-gen3-cpg.h"
  20
  21 enum clk_ids {
  22         /* Core Clock Outputs exported to DT */
  23         LAST_DT_CORE_CLK = R8A774B1_CLK_CANFD,
  24
  25         /* External Input Clocks */
  26         CLK_EXTAL,
  27         CLK_EXTALR,
  28
  29         /* Internal Core Clocks */
  30         CLK_MAIN,
  31         CLK_PLL0,
  32         CLK_PLL1,
  33         CLK_PLL3,
  34         CLK_PLL4,
  35         CLK_PLL1_DIV2,
  36         CLK_PLL1_DIV4,
  37         CLK_S0,
  38         CLK_S1,
  39         CLK_S2,
  40         CLK_S3,
  41         CLK_SDSRC,
  42         CLK_RINT,
  43
  44         /* Module Clocks */
  45         MOD_CLK_BASE
  46 };
  47
  48 static const struct cpg_core_clk r8a774b1_core_clks[] = {
  49         /* External Clock Inputs */
  50         DEF_INPUT("extal",      CLK_EXTAL),
  51         DEF_INPUT("extalr",     CLK_EXTALR),
  52
  53         /* Internal Core Clocks */
  54         DEF_BASE(".main",       CLK_MAIN, CLK_TYPE_GEN3_MAIN, CLK_EXTAL),
  55         DEF_BASE(".pll0",       CLK_PLL0, CLK_TYPE_GEN3_PLL0, CLK_MAIN),
  56         DEF_BASE(".pll1",       CLK_PLL1, CLK_TYPE_GEN3_PLL1, CLK_MAIN),
  57         DEF_BASE(".pll3",       CLK_PLL3, CLK_TYPE_GEN3_PLL3, CLK_MAIN),
  58         DEF_BASE(".pll4",       CLK_PLL4, CLK_TYPE_GEN3_PLL4, CLK_MAIN),
  59
  60         DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2,     CLK_PLL1,       2, 1),
  61         DEF_FIXED(".pll1_div4", CLK_PLL1_DIV4,     CLK_PLL1_DIV2,  2, 1),
  62         DEF_FIXED(".s0",        CLK_S0,            CLK_PLL1_DIV2,  2, 1),
  63         DEF_FIXED(".s1",        CLK_S1,            CLK_PLL1_DIV2,  3, 1),
  64         DEF_FIXED(".s2",        CLK_S2,            CLK_PLL1_DIV2,  4, 1),
  65         DEF_FIXED(".s3",        CLK_S3,            CLK_PLL1_DIV2,  6, 1),
  66         DEF_FIXED(".sdsrc",     CLK_SDSRC,         CLK_PLL1_DIV2,  2, 1),
  67
  68         DEF_GEN3_OSC(".r",      CLK_RINT,          CLK_EXTAL,      32),
  69
  70         /* Core Clock Outputs */
  71         DEF_GEN3_Z("z",         R8A774B1_CLK_Z,     CLK_TYPE_GEN3_Z,  CLK_PLL0, 2, 8),
  72         DEF_FIXED("ztr",        R8A774B1_CLK_ZTR,   CLK_PLL1_DIV2,  6, 1),
  73         DEF_FIXED("ztrd2",      R8A774B1_CLK_ZTRD2, CLK_PLL1_DIV2, 12, 1),
  74         DEF_FIXED("zt",         R8A774B1_CLK_ZT,    CLK_PLL1_DIV2,  4, 1),
  75         DEF_FIXED("zx",         R8A774B1_CLK_ZX,    CLK_PLL1_DIV2,  2, 1),
  76         DEF_FIXED("s0d1",       R8A774B1_CLK_S0D1,  CLK_S0,         1, 1),
  77         DEF_FIXED("s0d2",       R8A774B1_CLK_S0D2,  CLK_S0,         2, 1),
  78         DEF_FIXED("s0d3",       R8A774B1_CLK_S0D3,  CLK_S0,         3, 1),
  79         DEF_FIXED("s0d4",       R8A774B1_CLK_S0D4,  CLK_S0,         4, 1),
  80         DEF_FIXED("s0d6",       R8A774B1_CLK_S0D6,  CLK_S0,         6, 1),
  81         DEF_FIXED("s0d8",       R8A774B1_CLK_S0D8,  CLK_S0,         8, 1),
  82         DEF_FIXED("s0d12",      R8A774B1_CLK_S0D12, CLK_S0,        12, 1),
  83         DEF_FIXED("s1d2",       R8A774B1_CLK_S1D2,  CLK_S1,         2, 1),
  84         DEF_FIXED("s1d4",       R8A774B1_CLK_S1D4,  CLK_S1,         4, 1),
  85         DEF_FIXED("s2d1",       R8A774B1_CLK_S2D1,  CLK_S2,         1, 1),
  86         DEF_FIXED("s2d2",       R8A774B1_CLK_S2D2,  CLK_S2,         2, 1),
  87         DEF_FIXED("s2d4",       R8A774B1_CLK_S2D4,  CLK_S2,         4, 1),
  88         DEF_FIXED("s3d1",       R8A774B1_CLK_S3D1,  CLK_S3,         1, 1),
  89         DEF_FIXED("s3d2",       R8A774B1_CLK_S3D2,  CLK_S3,         2, 1),
  90         DEF_FIXED("s3d4",       R8A774B1_CLK_S3D4,  CLK_S3,         4, 1),
  91
  92         DEF_GEN3_SD("sd0",      R8A774B1_CLK_SD0,   CLK_SDSRC,     0x074),
  93         DEF_GEN3_SD("sd1",      R8A774B1_CLK_SD1,   CLK_SDSRC,     0x078),
  94         DEF_GEN3_SD("sd2",      R8A774B1_CLK_SD2,   CLK_SDSRC,     0x268),
  95         DEF_GEN3_SD("sd3",      R8A774B1_CLK_SD3,   CLK_SDSRC,     0x26c),
  96
  97         DEF_FIXED("cl",         R8A774B1_CLK_CL,    CLK_PLL1_DIV2, 48, 1),
  98         DEF_FIXED("cp",         R8A774B1_CLK_CP,    CLK_EXTAL,      2, 1),
  99         DEF_FIXED("cpex",       R8A774B1_CLK_CPEX,  CLK_EXTAL,      2, 1),
 100
 101         DEF_DIV6P1("canfd",     R8A774B1_CLK_CANFD, CLK_PLL1_DIV4, 0x244),
 102         DEF_DIV6P1("csi0",      R8A774B1_CLK_CSI0,  CLK_PLL1_DIV4, 0x00c),
 103         DEF_DIV6P1("mso",       R8A774B1_CLK_MSO,   CLK_PLL1_DIV4, 0x014),
 104         DEF_DIV6P1("hdmi",      R8A774B1_CLK_HDMI,  CLK_PLL1_DIV4, 0x250),
 105
 106         DEF_GEN3_OSC("osc",     R8A774B1_CLK_OSC,   CLK_EXTAL,     8),
 107
 108         DEF_BASE("r",           R8A774B1_CLK_R,     CLK_TYPE_GEN3_R, CLK_RINT),
 109 };
 110
 111 static const struct mssr_mod_clk r8a774b1_mod_clks[] = {
 112         DEF_MOD("tmu4",                  121,   R8A774B1_CLK_S0D6),
 113         DEF_MOD("tmu3",                  122,   R8A774B1_CLK_S3D2),
 114         DEF_MOD("tmu2",                  123,   R8A774B1_CLK_S3D2),
 115         DEF_MOD("tmu1",                  124,   R8A774B1_CLK_S3D2),
 116         DEF_MOD("tmu0",                  125,   R8A774B1_CLK_CP),
 117         DEF_MOD("fdp1-0",                119,   R8A774B1_CLK_S0D1),
 118         DEF_MOD("scif5",                 202,   R8A774B1_CLK_S3D4),
 119         DEF_MOD("scif4",                 203,   R8A774B1_CLK_S3D4),
 120         DEF_MOD("scif3",                 204,   R8A774B1_CLK_S3D4),
 121         DEF_MOD("scif1",                 206,   R8A774B1_CLK_S3D4),
 122         DEF_MOD("scif0",                 207,   R8A774B1_CLK_S3D4),
 123         DEF_MOD("msiof3",                208,   R8A774B1_CLK_MSO),
 124         DEF_MOD("msiof2",                209,   R8A774B1_CLK_MSO),
 125         DEF_MOD("msiof1",                210,   R8A774B1_CLK_MSO),
 126         DEF_MOD("msiof0",                211,   R8A774B1_CLK_MSO),
 127         DEF_MOD("sys-dmac2",             217,   R8A774B1_CLK_S3D1),
 128         DEF_MOD("sys-dmac1",             218,   R8A774B1_CLK_S3D1),
 129         DEF_MOD("sys-dmac0",             219,   R8A774B1_CLK_S0D3),
 130         DEF_MOD("cmt3",                  300,   R8A774B1_CLK_R),
 131         DEF_MOD("cmt2",                  301,   R8A774B1_CLK_R),
 132         DEF_MOD("cmt1",                  302,   R8A774B1_CLK_R),
 133         DEF_MOD("cmt0",                  303,   R8A774B1_CLK_R),
 134         DEF_MOD("tpu0",                  304,   R8A774B1_CLK_S3D4),
 135         DEF_MOD("scif2",                 310,   R8A774B1_CLK_S3D4),
 136         DEF_MOD("sdif3",                 311,   R8A774B1_CLK_SD3),
 137         DEF_MOD("sdif2",                 312,   R8A774B1_CLK_SD2),
 138         DEF_MOD("sdif1",                 313,   R8A774B1_CLK_SD1),
 139         DEF_MOD("sdif0",                 314,   R8A774B1_CLK_SD0),
 140         DEF_MOD("pcie1",                 318,   R8A774B1_CLK_S3D1),
 141         DEF_MOD("pcie0",                 319,   R8A774B1_CLK_S3D1),
 142         DEF_MOD("usb3-if0",              328,   R8A774B1_CLK_S3D1),
 143         DEF_MOD("usb-dmac0",             330,   R8A774B1_CLK_S3D1),
 144         DEF_MOD("usb-dmac1",             331,   R8A774B1_CLK_S3D1),
 145         DEF_MOD("rwdt",                  402,   R8A774B1_CLK_R),
 146         DEF_MOD("intc-ex",               407,   R8A774B1_CLK_CP),
 147         DEF_MOD("intc-ap",               408,   R8A774B1_CLK_S0D3),
 148         DEF_MOD("audmac1",               501,   R8A774B1_CLK_S1D2),
 149         DEF_MOD("audmac0",               502,   R8A774B1_CLK_S1D2),
 150         DEF_MOD("hscif4",                516,   R8A774B1_CLK_S3D1),
 151         DEF_MOD("hscif3",                517,   R8A774B1_CLK_S3D1),
 152         DEF_MOD("hscif2",                518,   R8A774B1_CLK_S3D1),
 153         DEF_MOD("hscif1",                519,   R8A774B1_CLK_S3D1),
 154         DEF_MOD("hscif0",                520,   R8A774B1_CLK_S3D1),
 155         DEF_MOD("thermal",               522,   R8A774B1_CLK_CP),
 156         DEF_MOD("pwm",                   523,   R8A774B1_CLK_S0D12),
 157         DEF_MOD("fcpvd1",                602,   R8A774B1_CLK_S0D2),
 158         DEF_MOD("fcpvd0",                603,   R8A774B1_CLK_S0D2),
 159         DEF_MOD("fcpvb0",                607,   R8A774B1_CLK_S0D1),
 160         DEF_MOD("fcpvi0",                611,   R8A774B1_CLK_S0D1),
 161         DEF_MOD("fcpf0",                 615,   R8A774B1_CLK_S0D1),
 162         DEF_MOD("fcpcs",                 619,   R8A774B1_CLK_S0D2),
 163         DEF_MOD("vspd1",                 622,   R8A774B1_CLK_S0D2),
 164         DEF_MOD("vspd0",                 623,   R8A774B1_CLK_S0D2),
 165         DEF_MOD("vspb",                  626,   R8A774B1_CLK_S0D1),
 166         DEF_MOD("vspi0",                 631,   R8A774B1_CLK_S0D1),
 167         DEF_MOD("ehci1",                 702,   R8A774B1_CLK_S3D2),
 168         DEF_MOD("ehci0",                 703,   R8A774B1_CLK_S3D2),
 169         DEF_MOD("hsusb",                 704,   R8A774B1_CLK_S3D2),
 170         DEF_MOD("csi20",                 714,   R8A774B1_CLK_CSI0),
 171         DEF_MOD("csi40",                 716,   R8A774B1_CLK_CSI0),
 172         DEF_MOD("du3",                   721,   R8A774B1_CLK_S2D1),
 173         DEF_MOD("du1",                   723,   R8A774B1_CLK_S2D1),
 174         DEF_MOD("du0",                   724,   R8A774B1_CLK_S2D1),
 175         DEF_MOD("lvds",                  727,   R8A774B1_CLK_S2D1),
 176         DEF_MOD("hdmi0",                 729,   R8A774B1_CLK_HDMI),
 177         DEF_MOD("vin7",                  804,   R8A774B1_CLK_S0D2),
 178         DEF_MOD("vin6",                  805,   R8A774B1_CLK_S0D2),
 179         DEF_MOD("vin5",                  806,   R8A774B1_CLK_S0D2),
 180         DEF_MOD("vin4",                  807,   R8A774B1_CLK_S0D2),
 181         DEF_MOD("vin3",                  808,   R8A774B1_CLK_S0D2),
 182         DEF_MOD("vin2",                  809,   R8A774B1_CLK_S0D2),
 183         DEF_MOD("vin1",                  810,   R8A774B1_CLK_S0D2),
 184         DEF_MOD("vin0",                  811,   R8A774B1_CLK_S0D2),
 185         DEF_MOD("etheravb",              812,   R8A774B1_CLK_S0D6),
 186         DEF_MOD("sata0",                 815,   R8A774B1_CLK_S3D2),
 187         DEF_MOD("gpio7",                 905,   R8A774B1_CLK_S3D4),
 188         DEF_MOD("gpio6",                 906,   R8A774B1_CLK_S3D4),
 189         DEF_MOD("gpio5",                 907,   R8A774B1_CLK_S3D4),
 190         DEF_MOD("gpio4",                 908,   R8A774B1_CLK_S3D4),
 191         DEF_MOD("gpio3",                 909,   R8A774B1_CLK_S3D4),
 192         DEF_MOD("gpio2",                 910,   R8A774B1_CLK_S3D4),
 193         DEF_MOD("gpio1",                 911,   R8A774B1_CLK_S3D4),
 194         DEF_MOD("gpio0",                 912,   R8A774B1_CLK_S3D4),
 195         DEF_MOD("can-fd",                914,   R8A774B1_CLK_S3D2),
 196         DEF_MOD("can-if1",               915,   R8A774B1_CLK_S3D4),
 197         DEF_MOD("can-if0",               916,   R8A774B1_CLK_S3D4),
 198         DEF_MOD("i2c6",                  918,   R8A774B1_CLK_S0D6),
 199         DEF_MOD("i2c5",                  919,   R8A774B1_CLK_S0D6),
 200         DEF_MOD("i2c-dvfs",              926,   R8A774B1_CLK_CP),
 201         DEF_MOD("i2c4",                  927,   R8A774B1_CLK_S0D6),
 202         DEF_MOD("i2c3",                  928,   R8A774B1_CLK_S0D6),
 203         DEF_MOD("i2c2",                  929,   R8A774B1_CLK_S3D2),
 204         DEF_MOD("i2c1",                  930,   R8A774B1_CLK_S3D2),
 205         DEF_MOD("i2c0",                  931,   R8A774B1_CLK_S3D2),
 206         DEF_MOD("ssi-all",              1005,   R8A774B1_CLK_S3D4),
 207         DEF_MOD("ssi9",                 1006,   MOD_CLK_ID(1005)),
 208         DEF_MOD("ssi8",                 1007,   MOD_CLK_ID(1005)),
 209         DEF_MOD("ssi7",                 1008,   MOD_CLK_ID(1005)),
 210         DEF_MOD("ssi6",                 1009,   MOD_CLK_ID(1005)),
 211         DEF_MOD("ssi5",                 1010,   MOD_CLK_ID(1005)),
 212         DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 213         DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 214         DEF_MOD("ssi2",                 1013,   MOD_CLK_ID(1005)),
 215         DEF_MOD("ssi1",                 1014,   MOD_CLK_ID(1005)),
 216         DEF_MOD("ssi0",                 1015,   MOD_CLK_ID(1005)),
 217         DEF_MOD("scu-all",              1017,   R8A774B1_CLK_S3D4),
 218         DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 219         DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 220         DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 221         DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 222         DEF_MOD("scu-src9",             1022,   MOD_CLK_ID(1017)),
 223         DEF_MOD("scu-src8",             1023,   MOD_CLK_ID(1017)),
 224         DEF_MOD("scu-src7",             1024,   MOD_CLK_ID(1017)),
 225         DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 226         DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 227         DEF_MOD("scu-src4",             1027,   MOD_CLK_ID(1017)),
 228         DEF_MOD("scu-src3",             1028,   MOD_CLK_ID(1017)),
 229         DEF_MOD("scu-src2",             1029,   MOD_CLK_ID(1017)),
 230         DEF_MOD("scu-src1",             1030,   MOD_CLK_ID(1017)),
 231         DEF_MOD("scu-src0",             1031,   MOD_CLK_ID(1017)),
 232 };
 233
 234 /*
 235  * CPG Clock Data
 236  */
 237
 238 /*
 239  *   MD         EXTAL           PLL0    PLL1    PLL3    PLL4    OSC
 240  * 14 13 19 17  (MHz)
 241  *-----------------------------------------------------------------
 242  * 0  0  0  0   16.66 x 1       x180    x192    x192    x144    /16
 243  * 0  0  0  1   16.66 x 1       x180    x192    x128    x144    /16
 244  * 0  0  1  0   Prohibited setting
 245  * 0  0  1  1   16.66 x 1       x180    x192    x192    x144    /16
 246  * 0  1  0  0   20    x 1       x150    x160    x160    x120    /19
 247  * 0  1  0  1   20    x 1       x150    x160    x106    x120    /19
 248  * 0  1  1  0   Prohibited setting
 249  * 0  1  1  1   20    x 1       x150    x160    x160    x120    /19
 250  * 1  0  0  0   25    x 1       x120    x128    x128    x96     /24
 251  * 1  0  0  1   25    x 1       x120    x128    x84     x96     /24
 252  * 1  0  1  0   Prohibited setting
 253  * 1  0  1  1   25    x 1       x120    x128    x128    x96     /24
 254  * 1  1  0  0   33.33 / 2       x180    x192    x192    x144    /32
 255  * 1  1  0  1   33.33 / 2       x180    x192    x128    x144    /32
 256  * 1  1  1  0   Prohibited setting
 257  * 1  1  1  1   33.33 / 2       x180    x192    x192    x144    /32
 258  */
 259 #define CPG_PLL_CONFIG_INDEX(md)        ((((md) & BIT(14)) >> 11) | \
 260                                          (((md) & BIT(13)) >> 11) | \
 261                                          (((md) & BIT(19)) >> 18) | \
 262                                          (((md) & BIT(17)) >> 17))
 263
 264 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[16] = {
 265         /* EXTAL div    PLL1 mult/div   PLL3 mult/div   OSC prediv */
 266         { 1,            192,    1,      192,    1,      16,     },
 267         { 1,            192,    1,      128,    1,      16,     },
 268         { 0, /* Prohibited setting */                           },
 269         { 1,            192,    1,      192,    1,      16,     },
 270         { 1,            160,    1,      160,    1,      19,     },
 271         { 1,            160,    1,      106,    1,      19,     },
 272         { 0, /* Prohibited setting */                           },
 273         { 1,            160,    1,      160,    1,      19,     },
 274         { 1,            128,    1,      128,    1,      24,     },
 275         { 1,            128,    1,      84,     1,      24,     },
 276         { 0, /* Prohibited setting */                           },
 277         { 1,            128,    1,      128,    1,      24,     },
 278         { 2,            192,    1,      192,    1,      32,     },
 279         { 2,            192,    1,      128,    1,      32,     },
 280         { 0, /* Prohibited setting */                           },
 281         { 2,            192,    1,      192,    1,      32,     },
 282 };
 283
 284 /* RMSTPCR[0-11] is not present on RZ/G2N */
 285 static const struct mstp_stop_table r8a774b1_mstp_table[] = {
 286         { 0x00200000, 0x0, 0x0, 0 },
 287         { 0xFFFFFFFF, 0x0, 0x0, 0 },
 288         { 0x340E2FDC, 0x2040, 0x0, 0 },
 289         { 0xFFFFFFDF, 0x400, 0x0, 0 },
 290         { 0x80000184, 0x180, 0x0, 0 },
 291         { 0xC3FFFFFF, 0x0, 0x0, 0 },
 292         { 0xFFFFFFFF, 0x0, 0x0, 0 },
 293         { 0xFFFFFFFF, 0x0, 0x0, 0 },
 294         { 0x01F1FFF7, 0x0, 0x0, 0 },
 295         { 0xFFFFFFFE, 0x0, 0x0, 0 },
 296         { 0xFFFEFFE0, 0x0, 0x0, 0 },
 297         { 0x000000B7, 0x0, 0x0, 0 },
 298 };
 299
 300 static const void *r8a774b1_get_pll_config(const u32 cpg_mode)
 301 {
 302         return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
 303 }
 304
 305 static const struct cpg_mssr_info r8a774b1_cpg_mssr_info = {
 306         .core_clk               = r8a774b1_core_clks,
 307         .core_clk_size          = ARRAY_SIZE(r8a774b1_core_clks),
 308         .mod_clk                = r8a774b1_mod_clks,
 309         .mod_clk_size           = ARRAY_SIZE(r8a774b1_mod_clks),
 310         .mstp_table             = r8a774b1_mstp_table,
 311         .mstp_table_size        = ARRAY_SIZE(r8a774b1_mstp_table),
 312         .reset_node             = "renesas,r8a774b1-rst",
 313         .extalr_node            = "extalr",
 314         .mod_clk_base           = MOD_CLK_BASE,
 315         .clk_extal_id           = CLK_EXTAL,
 316         .clk_extalr_id          = CLK_EXTALR,
 317         .get_pll_config         = r8a774b1_get_pll_config,
 318 };
 319
 320 static const struct udevice_id r8a774b1_clk_ids[] = {
 321         {
 322                 .compatible     = "renesas,r8a774b1-cpg-mssr",
 323                 .data           = (ulong)&r8a774b1_cpg_mssr_info,
 324         },
 325         { }
 326 };
 327
 328 U_BOOT_DRIVER(clk_r8a774b1) = {
 329         .name           = "clk_r8a774b1",
 330         .id             = UCLASS_CLK,
 331         .of_match       = r8a774b1_clk_ids,
 332         .priv_auto_alloc_size = sizeof(struct gen3_clk_priv),
 333         .ops            = &gen3_clk_ops,
 334         .probe          = gen3_clk_probe,
 335         .remove         = gen3_clk_remove,
 336 };