uboot/drivers/clk/renesas/r8a77995-cpg-mssr.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * r8a77995 Clock Pulse Generator / Module Standby and Software Reset
   4 *
   5 * Copyright (C) 2017 Glider bvba
   6 *
   7 * Based on r8a7795-cpg-mssr.c
   8 *
   9 * Copyright (C) 2015 Glider bvba
  10 * Copyright (C) 2015 Renesas Electronics Corp.
  11 */
  12
  13#include <common.h>
  14#include <clk-uclass.h>
  15#include <dm.h>
  16#include <linux/bitops.h>
  17
  18#include <dt-bindings/clock/r8a77995-cpg-mssr.h>
  19
  20#include "renesas-cpg-mssr.h"
  21#include "rcar-gen3-cpg.h"
  22
  23enum clk_ids {
  24        /* Core Clock Outputs exported to DT */
  25        LAST_DT_CORE_CLK = R8A77995_CLK_CPEX,
  26
  27        /* External Input Clocks */
  28        CLK_EXTAL,
  29
  30        /* Internal Core Clocks */
  31        CLK_MAIN,
  32        CLK_PLL0,
  33        CLK_PLL1,
  34        CLK_PLL3,
  35        CLK_PLL0D2,
  36        CLK_PLL0D3,
  37        CLK_PLL0D5,
  38        CLK_PLL1D2,
  39        CLK_PE,
  40        CLK_S0,
  41        CLK_S1,
  42        CLK_S2,
  43        CLK_S3,
  44        CLK_SDSRC,
  45        CLK_RPCSRC,
  46        CLK_RINT,
  47        CLK_OCO,
  48
  49        /* Module Clocks */
  50        MOD_CLK_BASE
  51};
  52
  53static const struct cpg_core_clk r8a77995_core_clks[] = {
  54        /* External Clock Inputs */
  55        DEF_INPUT("extal",     CLK_EXTAL),
  56
  57        /* Internal Core Clocks */
  58        DEF_BASE(".main",      CLK_MAIN, CLK_TYPE_GEN3_MAIN,       CLK_EXTAL),
  59        DEF_BASE(".pll1",      CLK_PLL1, CLK_TYPE_GEN3_PLL1,       CLK_MAIN),
  60        DEF_BASE(".pll3",      CLK_PLL3, CLK_TYPE_GEN3_PLL3,       CLK_MAIN),
  61
  62        DEF_FIXED(".pll0",     CLK_PLL0,           CLK_MAIN,       4, 250),
  63        DEF_FIXED(".pll0d2",   CLK_PLL0D2,         CLK_PLL0,       2, 1),
  64        DEF_FIXED(".pll0d3",   CLK_PLL0D3,         CLK_PLL0,       3, 1),
  65        DEF_FIXED(".pll0d5",   CLK_PLL0D5,         CLK_PLL0,       5, 1),
  66        DEF_FIXED(".pll1d2",   CLK_PLL1D2,         CLK_PLL1,       2, 1),
  67        DEF_FIXED(".pe",       CLK_PE,             CLK_PLL0D3,     4, 1),
  68        DEF_FIXED(".s0",       CLK_S0,             CLK_PLL1,       2, 1),
  69        DEF_FIXED(".s1",       CLK_S1,             CLK_PLL1,       3, 1),
  70        DEF_FIXED(".s2",       CLK_S2,             CLK_PLL1,       4, 1),
  71        DEF_FIXED(".s3",       CLK_S3,             CLK_PLL1,       6, 1),
  72        DEF_FIXED(".sdsrc",    CLK_SDSRC,          CLK_PLL1,       2, 1),
  73
  74        DEF_FIXED_RPCSRC_E3(".rpcsrc", CLK_RPCSRC, CLK_PLL0, CLK_PLL1),
  75
  76        DEF_BASE("rpc",         R8A77995_CLK_RPC, CLK_TYPE_GEN3_RPC,
  77                 CLK_RPCSRC),
  78        DEF_BASE("rpcd2",       R8A77995_CLK_RPCD2, CLK_TYPE_GEN3_RPCD2,
  79                 R8A77995_CLK_RPC),
  80
  81        DEF_DIV6_RO(".r",      CLK_RINT,           CLK_EXTAL, CPG_RCKCR, 32),
  82
  83        DEF_RATE(".oco",       CLK_OCO,            8 * 1000 * 1000),
  84
  85        /* Core Clock Outputs */
  86        DEF_FIXED("z2",        R8A77995_CLK_Z2,    CLK_PLL0D3,     1, 1),
  87        DEF_FIXED("ztr",       R8A77995_CLK_ZTR,   CLK_PLL1,       6, 1),
  88        DEF_FIXED("zt",        R8A77995_CLK_ZT,    CLK_PLL1,       4, 1),
  89        DEF_FIXED("zx",        R8A77995_CLK_ZX,    CLK_PLL1,       3, 1),
  90        DEF_FIXED("s0d1",      R8A77995_CLK_S0D1,  CLK_S0,         1, 1),
  91        DEF_FIXED("s1d1",      R8A77995_CLK_S1D1,  CLK_S1,         1, 1),
  92        DEF_FIXED("s1d2",      R8A77995_CLK_S1D2,  CLK_S1,         2, 1),
  93        DEF_FIXED("s1d4",      R8A77995_CLK_S1D4,  CLK_S1,         4, 1),
  94        DEF_FIXED("s2d1",      R8A77995_CLK_S2D1,  CLK_S2,         1, 1),
  95        DEF_FIXED("s2d2",      R8A77995_CLK_S2D2,  CLK_S2,         2, 1),
  96        DEF_FIXED("s2d4",      R8A77995_CLK_S2D4,  CLK_S2,         4, 1),
  97        DEF_FIXED("s3d1",      R8A77995_CLK_S3D1,  CLK_S3,         1, 1),
  98        DEF_FIXED("s3d2",      R8A77995_CLK_S3D2,  CLK_S3,         2, 1),
  99        DEF_FIXED("s3d4",      R8A77995_CLK_S3D4,  CLK_S3,         4, 1),
 100
 101        DEF_FIXED("cl",        R8A77995_CLK_CL,    CLK_PLL1,      48, 1),
 102        DEF_FIXED("cr",        R8A77995_CLK_CR,    CLK_PLL1D2,     2, 1),
 103        DEF_FIXED("cp",        R8A77995_CLK_CP,    CLK_EXTAL,      2, 1),
 104        DEF_FIXED("cpex",      R8A77995_CLK_CPEX,  CLK_EXTAL,      4, 1),
 105
 106        DEF_DIV6_RO("osc",     R8A77995_CLK_OSC,   CLK_EXTAL, CPG_RCKCR,  8),
 107
 108        DEF_GEN3_PE("s1d4c",   R8A77995_CLK_S1D4C, CLK_S1, 4, CLK_PE, 2),
 109        DEF_GEN3_PE("s3d1c",   R8A77995_CLK_S3D1C, CLK_S3, 1, CLK_PE, 1),
 110        DEF_GEN3_PE("s3d2c",   R8A77995_CLK_S3D2C, CLK_S3, 2, CLK_PE, 2),
 111        DEF_GEN3_PE("s3d4c",   R8A77995_CLK_S3D4C, CLK_S3, 4, CLK_PE, 4),
 112
 113        DEF_GEN3_SD("sd0",     R8A77995_CLK_SD0,   CLK_SDSRC,     0x268),
 114
 115        DEF_DIV6P1("canfd",    R8A77995_CLK_CANFD, CLK_PLL0D3,    0x244),
 116        DEF_DIV6P1("mso",      R8A77995_CLK_MSO,   CLK_PLL1D2,    0x014),
 117
 118        DEF_GEN3_RCKSEL("r",   R8A77995_CLK_R, CLK_RINT, 1, CLK_OCO, 61 * 4),
 119};
 120
 121static const struct mssr_mod_clk r8a77995_mod_clks[] = {
 122        DEF_MOD("tmu4",                  121,   R8A77995_CLK_S1D4C),
 123        DEF_MOD("tmu3",                  122,   R8A77995_CLK_S3D2C),
 124        DEF_MOD("tmu2",                  123,   R8A77995_CLK_S3D2C),
 125        DEF_MOD("tmu1",                  124,   R8A77995_CLK_S3D2C),
 126        DEF_MOD("tmu0",                  125,   R8A77995_CLK_CP),
 127        DEF_MOD("scif5",                 202,   R8A77995_CLK_S3D4C),
 128        DEF_MOD("scif4",                 203,   R8A77995_CLK_S3D4C),
 129        DEF_MOD("scif3",                 204,   R8A77995_CLK_S3D4C),
 130        DEF_MOD("scif1",                 206,   R8A77995_CLK_S3D4C),
 131        DEF_MOD("scif0",                 207,   R8A77995_CLK_S3D4C),
 132        DEF_MOD("msiof3",                208,   R8A77995_CLK_MSO),
 133        DEF_MOD("msiof2",                209,   R8A77995_CLK_MSO),
 134        DEF_MOD("msiof1",                210,   R8A77995_CLK_MSO),
 135        DEF_MOD("msiof0",                211,   R8A77995_CLK_MSO),
 136        DEF_MOD("sys-dmac2",             217,   R8A77995_CLK_S3D1),
 137        DEF_MOD("sys-dmac1",             218,   R8A77995_CLK_S3D1),
 138        DEF_MOD("sys-dmac0",             219,   R8A77995_CLK_S3D1),
 139        DEF_MOD("sceg-pub",              229,   R8A77995_CLK_CR),
 140        DEF_MOD("cmt3",                  300,   R8A77995_CLK_R),
 141        DEF_MOD("cmt2",                  301,   R8A77995_CLK_R),
 142        DEF_MOD("cmt1",                  302,   R8A77995_CLK_R),
 143        DEF_MOD("cmt0",                  303,   R8A77995_CLK_R),
 144        DEF_MOD("scif2",                 310,   R8A77995_CLK_S3D4C),
 145        DEF_MOD("emmc0",                 312,   R8A77995_CLK_SD0),
 146        DEF_MOD("usb-dmac0",             330,   R8A77995_CLK_S3D1),
 147        DEF_MOD("usb-dmac1",             331,   R8A77995_CLK_S3D1),
 148        DEF_MOD("rwdt",                  402,   R8A77995_CLK_R),
 149        DEF_MOD("intc-ex",               407,   R8A77995_CLK_CP),
 150        DEF_MOD("intc-ap",               408,   R8A77995_CLK_S1D2),
 151        DEF_MOD("audmac0",               502,   R8A77995_CLK_S1D2),
 152        DEF_MOD("hscif3",                517,   R8A77995_CLK_S3D1C),
 153        DEF_MOD("hscif0",                520,   R8A77995_CLK_S3D1C),
 154        DEF_MOD("thermal",               522,   R8A77995_CLK_CP),
 155        DEF_MOD("pwm",                   523,   R8A77995_CLK_S3D4C),
 156        DEF_MOD("fcpvd1",                602,   R8A77995_CLK_S1D2),
 157        DEF_MOD("fcpvd0",                603,   R8A77995_CLK_S1D2),
 158        DEF_MOD("fcpvbs",                607,   R8A77995_CLK_S0D1),
 159        DEF_MOD("vspd1",                 622,   R8A77995_CLK_S1D2),
 160        DEF_MOD("vspd0",                 623,   R8A77995_CLK_S1D2),
 161        DEF_MOD("vspbs",                 627,   R8A77995_CLK_S0D1),
 162        DEF_MOD("ehci0",                 703,   R8A77995_CLK_S3D2),
 163        DEF_MOD("hsusb",                 704,   R8A77995_CLK_S3D2),
 164        DEF_MOD("cmm1",                  710,   R8A77995_CLK_S1D1),
 165        DEF_MOD("cmm0",                  711,   R8A77995_CLK_S1D1),
 166        DEF_MOD("du1",                   723,   R8A77995_CLK_S1D1),
 167        DEF_MOD("du0",                   724,   R8A77995_CLK_S1D1),
 168        DEF_MOD("lvds",                  727,   R8A77995_CLK_S2D1),
 169        DEF_MOD("vin4",                  807,   R8A77995_CLK_S1D2),
 170        DEF_MOD("etheravb",              812,   R8A77995_CLK_S3D2),
 171        DEF_MOD("imr0",                  823,   R8A77995_CLK_S1D2),
 172        DEF_MOD("gpio6",                 906,   R8A77995_CLK_S3D4),
 173        DEF_MOD("gpio5",                 907,   R8A77995_CLK_S3D4),
 174        DEF_MOD("gpio4",                 908,   R8A77995_CLK_S3D4),
 175        DEF_MOD("gpio3",                 909,   R8A77995_CLK_S3D4),
 176        DEF_MOD("gpio2",                 910,   R8A77995_CLK_S3D4),
 177        DEF_MOD("gpio1",                 911,   R8A77995_CLK_S3D4),
 178        DEF_MOD("gpio0",                 912,   R8A77995_CLK_S3D4),
 179        DEF_MOD("can-fd",                914,   R8A77995_CLK_S3D2),
 180        DEF_MOD("can-if1",               915,   R8A77995_CLK_S3D4),
 181        DEF_MOD("can-if0",               916,   R8A77995_CLK_S3D4),
 182        DEF_MOD("rpc",                   917,   R8A77995_CLK_RPC),
 183        DEF_MOD("i2c3",                  928,   R8A77995_CLK_S3D2),
 184        DEF_MOD("i2c2",                  929,   R8A77995_CLK_S3D2),
 185        DEF_MOD("i2c1",                  930,   R8A77995_CLK_S3D2),
 186        DEF_MOD("i2c0",                  931,   R8A77995_CLK_S3D2),
 187        DEF_MOD("ssi-all",              1005,   R8A77995_CLK_S3D4),
 188        DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 189        DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 190        DEF_MOD("scu-all",              1017,   R8A77995_CLK_S3D4),
 191        DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 192        DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 193        DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 194        DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 195        DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 196        DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 197};
 198
 199/*
 200 * CPG Clock Data
 201 */
 202
 203/*
 204 * MD19         EXTAL (MHz)     PLL0            PLL1            PLL3
 205 *--------------------------------------------------------------------
 206 * 0            48 x 1          x250/4          x100/3          x100/3
 207 * 1            48 x 1          x250/4          x100/3          x58/3
 208 */
 209#define CPG_PLL_CONFIG_INDEX(md)        (((md) & BIT(19)) >> 19)
 210
 211static const struct rcar_gen3_cpg_pll_config cpg_pll_configs[2] = {
 212        /* EXTAL div    PLL1 mult/div   PLL3 mult/div */
 213        { 1,            100,    3,      100,    3,      },
 214        { 1,            100,    3,      58,     3,      },
 215};
 216
 217static const struct mstp_stop_table r8a77995_mstp_table[] = {
 218        { 0x00210000, 0x0, 0x00210000, 0 },
 219        { 0x03e01000, 0x0, 0x03e01000, 0 },
 220        { 0x000e2fdc, 0x2000, 0x000e2fd8, 0 },
 221        { 0xc00014df, 0x400, 0xc00014df, 0 },
 222        { 0x80000004, 0x180, 0x80000004, 0 },
 223        { 0x40d20004, 0x0, 0x40d20004, 0 },
 224        { 0x08c0008c, 0x0, 0x08c0008c, 0 },
 225        { 0x09941c18, 0x0, 0x09941c18, 0 },
 226        { 0x00801087, 0x0, 0x00801087, 0 },
 227        { 0xf143dfc0, 0x0, 0xf143dfc0, 0 },
 228        { 0x063e1820, 0x0, 0x063e1820, 0 },
 229        { 0x00000000, 0x0, 0x00000000, 0 },
 230};
 231
 232static const void *r8a77995_get_pll_config(const u32 cpg_mode)
 233{
 234        return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
 235}
 236
 237static const struct cpg_mssr_info r8a77995_cpg_mssr_info = {
 238        .core_clk               = r8a77995_core_clks,
 239        .core_clk_size          = ARRAY_SIZE(r8a77995_core_clks),
 240        .mod_clk                = r8a77995_mod_clks,
 241        .mod_clk_size           = ARRAY_SIZE(r8a77995_mod_clks),
 242        .mstp_table             = r8a77995_mstp_table,
 243        .mstp_table_size        = ARRAY_SIZE(r8a77995_mstp_table),
 244        .reset_node             = "renesas,r8a77995-rst",
 245        .reset_modemr_offset    = CPG_RST_MODEMR,
 246        .mod_clk_base           = MOD_CLK_BASE,
 247        .clk_extal_id           = CLK_EXTAL,
 248        .clk_extalr_id          = ~0,
 249        .get_pll_config         = r8a77995_get_pll_config,
 250};
 251
 252static const struct udevice_id r8a77995_clk_ids[] = {
 253        {
 254                .compatible     = "renesas,r8a77995-cpg-mssr",
 255                .data           = (ulong)&r8a77995_cpg_mssr_info
 256        },
 257        { }
 258};
 259
 260U_BOOT_DRIVER(clk_r8a77995) = {
 261        .name           = "clk_r8a77995",
 262        .id             = UCLASS_CLK,
 263        .of_match       = r8a77995_clk_ids,
 264        .priv_auto      = sizeof(struct gen3_clk_priv),
 265        .ops            = &gen3_clk_ops,
 266        .probe          = gen3_clk_probe,
 267        .remove         = gen3_clk_remove,
 268};
 269