drivers/clk/renesas/r8a77990-cpg-mssr.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Renesas R8A77990 CPG MSSR driver
   4  *
   5  * Copyright (C) 2017-2018 Marek Vasut <marek.vasut@gmail.com>
   6  *
   7  * Based on the following driver from Linux kernel:
   8  * r8a7796 Clock Pulse Generator / Module Standby and Software Reset
   9  *
  10  * Copyright (C) 2016 Glider bvba
  11  */
  12
  13 #include <common.h>
  14 #include <clk-uclass.h>
  15 #include <dm.h>
  16
  17 #include <dt-bindings/clock/r8a77990-cpg-mssr.h>
  18
  19 #include "renesas-cpg-mssr.h"
  20 #include "rcar-gen3-cpg.h"
  21
  22 enum clk_ids {
  23         /* Core Clock Outputs exported to DT */
  24         LAST_DT_CORE_CLK = R8A77990_CLK_CPEX,
  25
  26         /* External Input Clocks */
  27         CLK_EXTAL,
  28
  29         /* Internal Core Clocks */
  30         CLK_MAIN,
  31         CLK_PLL0,
  32         CLK_PLL1,
  33         CLK_PLL3,
  34         CLK_PLL0D4,
  35         CLK_PLL0D6,
  36         CLK_PLL0D8,
  37         CLK_PLL0D20,
  38         CLK_PLL0D24,
  39         CLK_PLL1D2,
  40         CLK_PE,
  41         CLK_S0,
  42         CLK_S1,
  43         CLK_S2,
  44         CLK_S3,
  45         CLK_SDSRC,
  46         CLK_RPCSRC,
  47
  48         /* Module Clocks */
  49         MOD_CLK_BASE
  50 };
  51
  52 static const struct cpg_core_clk r8a77990_core_clks[] = {
  53         /* External Clock Inputs */
  54         DEF_INPUT("extal",     CLK_EXTAL),
  55
  56         /* Internal Core Clocks */
  57         DEF_BASE(".main",      CLK_MAIN, CLK_TYPE_GEN3_MAIN,       CLK_EXTAL),
  58         DEF_BASE(".pll1",      CLK_PLL1, CLK_TYPE_GEN3_PLL1,       CLK_MAIN),
  59         DEF_BASE(".pll3",      CLK_PLL3, CLK_TYPE_GEN3_PLL3,       CLK_MAIN),
  60
  61         DEF_FIXED(".pll0",     CLK_PLL0,           CLK_MAIN,       1, 100),
  62         DEF_FIXED(".pll0d4",   CLK_PLL0D4,         CLK_PLL0,       4, 1),
  63         DEF_FIXED(".pll0d6",   CLK_PLL0D6,         CLK_PLL0,       6, 1),
  64         DEF_FIXED(".pll0d8",   CLK_PLL0D8,         CLK_PLL0,       8, 1),
  65         DEF_FIXED(".pll0d20",  CLK_PLL0D20,        CLK_PLL0,      20, 1),
  66         DEF_FIXED(".pll0d24",  CLK_PLL0D24,        CLK_PLL0,      24, 1),
  67         DEF_FIXED(".pll1d2",   CLK_PLL1D2,         CLK_PLL1,       2, 1),
  68         DEF_FIXED(".pe",       CLK_PE,             CLK_PLL0D20,    1, 1),
  69         DEF_FIXED(".s0",       CLK_S0,             CLK_PLL1,       2, 1),
  70         DEF_FIXED(".s1",       CLK_S1,             CLK_PLL1,       3, 1),
  71         DEF_FIXED(".s2",       CLK_S2,             CLK_PLL1,       4, 1),
  72         DEF_FIXED(".s3",       CLK_S3,             CLK_PLL1,       6, 1),
  73         DEF_FIXED(".sdsrc",    CLK_SDSRC,          CLK_PLL1,       2, 1),
  74         DEF_FIXED(".rpcsrc",   CLK_RPCSRC,         CLK_PLL1,       2, 1),
  75
  76         /* Core Clock Outputs */
  77         DEF_FIXED("za2",       R8A77990_CLK_ZA2,   CLK_PLL0D24,    1, 1),
  78         DEF_FIXED("za8",       R8A77990_CLK_ZA8,   CLK_PLL0D8,     1, 1),
  79         DEF_FIXED("ztr",       R8A77990_CLK_ZTR,   CLK_PLL1,       6, 1),
  80         DEF_FIXED("zt",        R8A77990_CLK_ZT,    CLK_PLL1,       4, 1),
  81         DEF_FIXED("zx",        R8A77990_CLK_ZX,    CLK_PLL1,       3, 1),
  82         DEF_FIXED("s0d1",      R8A77990_CLK_S0D1,  CLK_S0,         1, 1),
  83         DEF_FIXED("s0d3",      R8A77990_CLK_S0D3,  CLK_S0,         3, 1),
  84         DEF_FIXED("s0d6",      R8A77990_CLK_S0D6,  CLK_S0,         6, 1),
  85         DEF_FIXED("s0d12",     R8A77990_CLK_S0D12, CLK_S0,        12, 1),
  86         DEF_FIXED("s0d24",     R8A77990_CLK_S0D24, CLK_S0,        24, 1),
  87         DEF_FIXED("s1d1",      R8A77990_CLK_S1D1,  CLK_S1,         1, 1),
  88         DEF_FIXED("s1d2",      R8A77990_CLK_S1D2,  CLK_S1,         2, 1),
  89         DEF_FIXED("s1d4",      R8A77990_CLK_S1D4,  CLK_S1,         4, 1),
  90         DEF_FIXED("s2d1",      R8A77990_CLK_S2D1,  CLK_S2,         1, 1),
  91         DEF_FIXED("s2d2",      R8A77990_CLK_S2D2,  CLK_S2,         2, 1),
  92         DEF_FIXED("s2d4",      R8A77990_CLK_S2D4,  CLK_S2,         4, 1),
  93         DEF_FIXED("s3d1",      R8A77990_CLK_S3D1,  CLK_S3,         1, 1),
  94         DEF_FIXED("s3d2",      R8A77990_CLK_S3D2,  CLK_S3,         2, 1),
  95         DEF_FIXED("s3d4",      R8A77990_CLK_S3D4,  CLK_S3,         4, 1),
  96
  97         DEF_GEN3_SD("sd0",     R8A77990_CLK_SD0,   CLK_SDSRC,     0x0074),
  98         DEF_GEN3_SD("sd1",     R8A77990_CLK_SD1,   CLK_SDSRC,     0x0078),
  99         DEF_GEN3_SD("sd3",     R8A77990_CLK_SD3,   CLK_SDSRC,     0x026c),
 100
 101         DEF_GEN3_RPC("rpc",    R8A77990_CLK_RPC,   CLK_RPCSRC,    0x238),
 102
 103         DEF_FIXED("cl",        R8A77990_CLK_CL,    CLK_PLL1,      48, 1),
 104         DEF_FIXED("cp",        R8A77990_CLK_CP,    CLK_EXTAL,      2, 1),
 105         DEF_FIXED("cpex",      R8A77990_CLK_CPEX,  CLK_EXTAL,      4, 1),
 106         DEF_FIXED("osc",       R8A77990_CLK_OSC,   CLK_EXTAL,    384, 1),
 107         DEF_FIXED("r",         R8A77990_CLK_R,     CLK_EXTAL,   1536, 1),
 108
 109         DEF_GEN3_PE("s0d6c",   R8A77990_CLK_S0D6C, CLK_S0, 6, CLK_PE, 6),
 110         DEF_GEN3_PE("s3d1c",   R8A77990_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
 111         DEF_GEN3_PE("s3d2c",   R8A77990_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
 112         DEF_GEN3_PE("s3d4c",   R8A77990_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
 113
 114         DEF_DIV6P1("canfd",    R8A77990_CLK_CANFD, CLK_PLL0D6, 0x244),
 115         DEF_DIV6P1("csi0",     R8A77990_CLK_CSI0,  CLK_PLL1D2, 0x00c),
 116         DEF_DIV6P1("mso",      R8A77990_CLK_MSO,   CLK_PLL1D2, 0x014),
 117 };
 118
 119 static const struct mssr_mod_clk r8a77990_mod_clks[] = {
 120         DEF_MOD("scif5",                 202,   R8A77990_CLK_S3D4C),
 121         DEF_MOD("scif4",                 203,   R8A77990_CLK_S3D4C),
 122         DEF_MOD("scif3",                 204,   R8A77990_CLK_S3D4C),
 123         DEF_MOD("scif1",                 206,   R8A77990_CLK_S3D4C),
 124         DEF_MOD("scif0",                 207,   R8A77990_CLK_S3D4C),
 125         DEF_MOD("msiof3",                208,   R8A77990_CLK_MSO),
 126         DEF_MOD("msiof2",                209,   R8A77990_CLK_MSO),
 127         DEF_MOD("msiof1",                210,   R8A77990_CLK_MSO),
 128         DEF_MOD("msiof0",                211,   R8A77990_CLK_MSO),
 129         DEF_MOD("sys-dmac2",             217,   R8A77990_CLK_S3D1),
 130         DEF_MOD("sys-dmac1",             218,   R8A77990_CLK_S3D1),
 131         DEF_MOD("sys-dmac0",             219,   R8A77990_CLK_S3D1),
 132
 133         DEF_MOD("cmt3",                  300,   R8A77990_CLK_R),
 134         DEF_MOD("cmt2",                  301,   R8A77990_CLK_R),
 135         DEF_MOD("cmt1",                  302,   R8A77990_CLK_R),
 136         DEF_MOD("cmt0",                  303,   R8A77990_CLK_R),
 137         DEF_MOD("scif2",                 310,   R8A77990_CLK_S3D4C),
 138         DEF_MOD("sdif3",                 311,   R8A77990_CLK_SD3),
 139         DEF_MOD("sdif1",                 313,   R8A77990_CLK_SD1),
 140         DEF_MOD("sdif0",                 314,   R8A77990_CLK_SD0),
 141         DEF_MOD("pcie0",                 319,   R8A77990_CLK_S3D1),
 142         DEF_MOD("usb3-if0",              328,   R8A77990_CLK_S3D1),
 143         DEF_MOD("usb-dmac0",             330,   R8A77990_CLK_S3D1),
 144         DEF_MOD("usb-dmac1",             331,   R8A77990_CLK_S3D1),
 145
 146         DEF_MOD("rwdt",                  402,   R8A77990_CLK_R),
 147         DEF_MOD("intc-ex",               407,   R8A77990_CLK_CP),
 148         DEF_MOD("intc-ap",               408,   R8A77990_CLK_S0D3),
 149
 150         DEF_MOD("audmac0",               502,   R8A77990_CLK_S3D4),
 151         DEF_MOD("drif7",                 508,   R8A77990_CLK_S3D2),
 152         DEF_MOD("drif6",                 509,   R8A77990_CLK_S3D2),
 153         DEF_MOD("drif5",                 510,   R8A77990_CLK_S3D2),
 154         DEF_MOD("drif4",                 511,   R8A77990_CLK_S3D2),
 155         DEF_MOD("drif3",                 512,   R8A77990_CLK_S3D2),
 156         DEF_MOD("drif2",                 513,   R8A77990_CLK_S3D2),
 157         DEF_MOD("drif1",                 514,   R8A77990_CLK_S3D2),
 158         DEF_MOD("drif0",                 515,   R8A77990_CLK_S3D2),
 159         DEF_MOD("hscif4",                516,   R8A77990_CLK_S3D1C),
 160         DEF_MOD("hscif3",                517,   R8A77990_CLK_S3D1C),
 161         DEF_MOD("hscif2",                518,   R8A77990_CLK_S3D1C),
 162         DEF_MOD("hscif1",                519,   R8A77990_CLK_S3D1C),
 163         DEF_MOD("hscif0",                520,   R8A77990_CLK_S3D1C),
 164         DEF_MOD("thermal",               522,   R8A77990_CLK_CP),
 165         DEF_MOD("pwm",                   523,   R8A77990_CLK_S3D4C),
 166
 167         DEF_MOD("fcpvd1",                602,   R8A77990_CLK_S1D2),
 168         DEF_MOD("fcpvd0",                603,   R8A77990_CLK_S1D2),
 169         DEF_MOD("fcpvb0",                607,   R8A77990_CLK_S0D1),
 170         DEF_MOD("fcpvi0",                611,   R8A77990_CLK_S0D1),
 171         DEF_MOD("fcpf0",                 615,   R8A77990_CLK_S0D1),
 172         DEF_MOD("fcpcs",                 619,   R8A77990_CLK_S0D1),
 173         DEF_MOD("vspd1",                 622,   R8A77990_CLK_S1D2),
 174         DEF_MOD("vspd0",                 623,   R8A77990_CLK_S1D2),
 175         DEF_MOD("vspb",                  626,   R8A77990_CLK_S0D1),
 176         DEF_MOD("vspi0",                 631,   R8A77990_CLK_S0D1),
 177
 178         DEF_MOD("ehci0",                 703,   R8A77990_CLK_S3D4),
 179         DEF_MOD("hsusb",                 704,   R8A77990_CLK_S3D4),
 180         DEF_MOD("csi40",                 716,   R8A77990_CLK_CSI0),
 181         DEF_MOD("du1",                   723,   R8A77990_CLK_S2D1),
 182         DEF_MOD("du0",                   724,   R8A77990_CLK_S2D1),
 183         DEF_MOD("lvds",                  727,   R8A77990_CLK_S2D1),
 184
 185         DEF_MOD("vin7",                  804,   R8A77990_CLK_S1D2),
 186         DEF_MOD("vin6",                  805,   R8A77990_CLK_S1D2),
 187         DEF_MOD("vin5",                  806,   R8A77990_CLK_S1D2),
 188         DEF_MOD("vin4",                  807,   R8A77990_CLK_S1D2),
 189         DEF_MOD("etheravb",              812,   R8A77990_CLK_S3D2),
 190
 191         DEF_MOD("gpio6",                 906,   R8A77990_CLK_S3D4),
 192         DEF_MOD("gpio5",                 907,   R8A77990_CLK_S3D4),
 193         DEF_MOD("gpio4",                 908,   R8A77990_CLK_S3D4),
 194         DEF_MOD("gpio3",                 909,   R8A77990_CLK_S3D4),
 195         DEF_MOD("gpio2",                 910,   R8A77990_CLK_S3D4),
 196         DEF_MOD("gpio1",                 911,   R8A77990_CLK_S3D4),
 197         DEF_MOD("gpio0",                 912,   R8A77990_CLK_S3D4),
 198         DEF_MOD("can-fd",                914,   R8A77990_CLK_S3D2),
 199         DEF_MOD("can-if1",               915,   R8A77990_CLK_S3D4),
 200         DEF_MOD("can-if0",               916,   R8A77990_CLK_S3D4),
 201         DEF_MOD("rpc",                   917,   R8A77990_CLK_RPC),
 202         DEF_MOD("i2c6",                  918,   R8A77990_CLK_S3D2),
 203         DEF_MOD("i2c5",                  919,   R8A77990_CLK_S3D2),
 204         DEF_MOD("i2c-dvfs",              926,   R8A77990_CLK_CP),
 205         DEF_MOD("i2c4",                  927,   R8A77990_CLK_S3D2),
 206         DEF_MOD("i2c3",                  928,   R8A77990_CLK_S3D2),
 207         DEF_MOD("i2c2",                  929,   R8A77990_CLK_S3D2),
 208         DEF_MOD("i2c1",                  930,   R8A77990_CLK_S3D2),
 209         DEF_MOD("i2c0",                  931,   R8A77990_CLK_S3D2),
 210
 211         DEF_MOD("ssi-all",              1005,   R8A77990_CLK_S3D4),
 212         DEF_MOD("ssi9",                 1006,   MOD_CLK_ID(1005)),
 213         DEF_MOD("ssi8",                 1007,   MOD_CLK_ID(1005)),
 214         DEF_MOD("ssi7",                 1008,   MOD_CLK_ID(1005)),
 215         DEF_MOD("ssi6",                 1009,   MOD_CLK_ID(1005)),
 216         DEF_MOD("ssi5",                 1010,   MOD_CLK_ID(1005)),
 217         DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 218         DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 219         DEF_MOD("ssi2",                 1013,   MOD_CLK_ID(1005)),
 220         DEF_MOD("ssi1",                 1014,   MOD_CLK_ID(1005)),
 221         DEF_MOD("ssi0",                 1015,   MOD_CLK_ID(1005)),
 222         DEF_MOD("scu-all",              1017,   R8A77990_CLK_S3D4),
 223         DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 224         DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 225         DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 226         DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 227         DEF_MOD("scu-src9",             1022,   MOD_CLK_ID(1017)),
 228         DEF_MOD("scu-src8",             1023,   MOD_CLK_ID(1017)),
 229         DEF_MOD("scu-src7",             1024,   MOD_CLK_ID(1017)),
 230         DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 231         DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 232         DEF_MOD("scu-src4",             1027,   MOD_CLK_ID(1017)),
 233         DEF_MOD("scu-src3",             1028,   MOD_CLK_ID(1017)),
 234         DEF_MOD("scu-src2",             1029,   MOD_CLK_ID(1017)),
 235         DEF_MOD("scu-src1",             1030,   MOD_CLK_ID(1017)),
 236         DEF_MOD("scu-src0",             1031,   MOD_CLK_ID(1017)),
 237 };
 238
 239 /*
 240  * CPG Clock Data
 241  */
 242
 243 /*
 244  * MD19         EXTAL (MHz)     PLL0            PLL1            PLL3
 245  *--------------------------------------------------------------------
 246  * 0            48 x 1          x100/4          x100/3          x100/3
 247  * 1            48 x 1          x100/4          x100/3           x58/3
 248  */
 249 #define CPG_PLL_CONFIG_INDEX(md)        (((md) & BIT(19)) >> 19)
 250
 251 static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] = {
 252         /* EXTAL div    PLL1 mult/div   PLL3 mult/div */
 253         { 1,            100,    3,      100,    3,      },
 254         { 1,            100,    3,       58,    3,      },
 255 };
 256
 257 static const struct mstp_stop_table r8a77990_mstp_table[] = {
 258         { 0x00200000, 0x0, 0x00200000, 0 },
 259         { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
 260         { 0x340E2FDC, 0x2040, 0x340E2FDC, 0 },
 261         { 0xFFFFFFDF, 0x400, 0xFFFFFFDF, 0 },
 262         { 0x80000184, 0x180, 0x80000184, 0 },
 263         { 0xC3FFFFFF, 0x0, 0xC3FFFFFF, 0 },
 264         { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
 265         { 0xFFFFFFFF, 0x0, 0xFFFFFFFF, 0 },
 266         { 0x01F1FFF7, 0x0, 0x01F1FFF7, 0 },
 267         { 0xFFFFFFFE, 0x0, 0xFFFFFFFE, 0 },
 268         { 0xFFFEFFE0, 0x0, 0xFFFEFFE0, 0 },
 269         { 0x000000B7, 0x0, 0x000000B7, 0 },
 270 };
 271
 272 static const void *r8a77990_get_pll_config(const u32 cpg_mode)
 273 {
 274         return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
 275 }
 276
 277 static const struct cpg_mssr_info r8a77990_cpg_mssr_info = {
 278         .core_clk               = r8a77990_core_clks,
 279         .core_clk_size          = ARRAY_SIZE(r8a77990_core_clks),
 280         .mod_clk                = r8a77990_mod_clks,
 281         .mod_clk_size           = ARRAY_SIZE(r8a77990_mod_clks),
 282         .mstp_table             = r8a77990_mstp_table,
 283         .mstp_table_size        = ARRAY_SIZE(r8a77990_mstp_table),
 284         .reset_node             = "renesas,r8a77990-rst",
 285         .mod_clk_base           = MOD_CLK_BASE,
 286         .clk_extal_id           = CLK_EXTAL,
 287         .clk_extalr_id          = ~0,
 288         .get_pll_config         = r8a77990_get_pll_config,
 289 };
 290
 291 static const struct udevice_id r8a77990_clk_ids[] = {
 292         {
 293                 .compatible     = "renesas,r8a77990-cpg-mssr",
 294                 .data           = (ulong)&r8a77990_cpg_mssr_info
 295         },
 296         { }
 297 };
 298
 299 U_BOOT_DRIVER(clk_r8a77990) = {
 300         .name           = "clk_r8a77990",
 301         .id             = UCLASS_CLK,
 302         .of_match       = r8a77990_clk_ids,
 303         .priv_auto_alloc_size = sizeof(struct gen3_clk_priv),
 304         .ops            = &gen3_clk_ops,
 305         .probe          = gen3_clk_probe,
 306         .remove         = gen3_clk_remove,
 307 };