uboot/drivers/clk/renesas/r8a7794-cpg-mssr.c
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   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * r8a7794 Clock Pulse Generator / Module Standby and Software Reset
   4 *
   5 * Copyright (C) 2017 Glider bvba
   6 *
   7 * Based on clk-rcar-gen2.c
   8 *
   9 * Copyright (C) 2013 Ideas On Board SPRL
  10 */
  11
  12#include <common.h>
  13#include <clk-uclass.h>
  14#include <dm.h>
  15#include <linux/bitops.h>
  16
  17#include <dt-bindings/clock/r8a7794-cpg-mssr.h>
  18
  19#include "renesas-cpg-mssr.h"
  20#include "rcar-gen2-cpg.h"
  21
  22enum clk_ids {
  23        /* Core Clock Outputs exported to DT */
  24        LAST_DT_CORE_CLK = R8A7794_CLK_OSC,
  25
  26        /* External Input Clocks */
  27        CLK_EXTAL,
  28        CLK_USB_EXTAL,
  29
  30        /* Internal Core Clocks */
  31        CLK_MAIN,
  32        CLK_PLL0,
  33        CLK_PLL1,
  34        CLK_PLL3,
  35        CLK_PLL1_DIV2,
  36
  37        /* Module Clocks */
  38        MOD_CLK_BASE
  39};
  40
  41static const struct cpg_core_clk r8a7794_core_clks[] = {
  42        /* External Clock Inputs */
  43        DEF_INPUT("extal",     CLK_EXTAL),
  44        DEF_INPUT("usb_extal", CLK_USB_EXTAL),
  45
  46        /* Internal Core Clocks */
  47        DEF_BASE(".main",       CLK_MAIN, CLK_TYPE_GEN2_MAIN, CLK_EXTAL),
  48        DEF_BASE(".pll0",       CLK_PLL0, CLK_TYPE_GEN2_PLL0, CLK_MAIN),
  49        DEF_BASE(".pll1",       CLK_PLL1, CLK_TYPE_GEN2_PLL1, CLK_MAIN),
  50        DEF_BASE(".pll3",       CLK_PLL3, CLK_TYPE_GEN2_PLL3, CLK_MAIN),
  51
  52        DEF_FIXED(".pll1_div2", CLK_PLL1_DIV2, CLK_PLL1, 2, 1),
  53
  54        /* Core Clock Outputs */
  55        DEF_BASE("adsp", R8A7794_CLK_ADSP, CLK_TYPE_GEN2_ADSP, CLK_PLL1),
  56        DEF_BASE("sdh",  R8A7794_CLK_SDH,  CLK_TYPE_GEN2_SDH,  CLK_PLL1),
  57        DEF_BASE("sd0",  R8A7794_CLK_SD0,  CLK_TYPE_GEN2_SD0,  CLK_PLL1),
  58        DEF_BASE("qspi", R8A7794_CLK_QSPI, CLK_TYPE_GEN2_QSPI, CLK_PLL1_DIV2),
  59        DEF_BASE("rcan", R8A7794_CLK_RCAN, CLK_TYPE_GEN2_RCAN, CLK_USB_EXTAL),
  60
  61        DEF_FIXED("z2",     R8A7794_CLK_Z2,    CLK_PLL0,          1, 1),
  62        DEF_FIXED("zg",     R8A7794_CLK_ZG,    CLK_PLL1,          6, 1),
  63        DEF_FIXED("zx",     R8A7794_CLK_ZX,    CLK_PLL1,          3, 1),
  64        DEF_FIXED("zs",     R8A7794_CLK_ZS,    CLK_PLL1,          6, 1),
  65        DEF_FIXED("hp",     R8A7794_CLK_HP,    CLK_PLL1,         12, 1),
  66        DEF_FIXED("i",      R8A7794_CLK_I,     CLK_PLL1,          2, 1),
  67        DEF_FIXED("b",      R8A7794_CLK_B,     CLK_PLL1,         12, 1),
  68        DEF_FIXED("lb",     R8A7794_CLK_LB,    CLK_PLL1,         24, 1),
  69        DEF_FIXED("p",      R8A7794_CLK_P,     CLK_PLL1,         24, 1),
  70        DEF_FIXED("cl",     R8A7794_CLK_CL,    CLK_PLL1,         48, 1),
  71        DEF_FIXED("cp",     R8A7794_CLK_CP,    CLK_PLL1,         48, 1),
  72        DEF_FIXED("m2",     R8A7794_CLK_M2,    CLK_PLL1,          8, 1),
  73        DEF_FIXED("zb3",    R8A7794_CLK_ZB3,   CLK_PLL3,          4, 1),
  74        DEF_FIXED("zb3d2",  R8A7794_CLK_ZB3D2, CLK_PLL3,          8, 1),
  75        DEF_FIXED("ddr",    R8A7794_CLK_DDR,   CLK_PLL3,          8, 1),
  76        DEF_FIXED("mp",     R8A7794_CLK_MP,    CLK_PLL1_DIV2,    15, 1),
  77        DEF_FIXED("cpex",   R8A7794_CLK_CPEX,  CLK_EXTAL,         2, 1),
  78        DEF_FIXED("r",      R8A7794_CLK_R,     CLK_PLL1,      49152, 1),
  79        DEF_FIXED("osc",    R8A7794_CLK_OSC,   CLK_PLL1,      12288, 1),
  80
  81        DEF_DIV6P1("sd2",   R8A7794_CLK_SD2,   CLK_PLL1_DIV2, 0x078),
  82        DEF_DIV6P1("sd3",   R8A7794_CLK_SD3,   CLK_PLL1_DIV2, 0x26c),
  83        DEF_DIV6P1("mmc0",  R8A7794_CLK_MMC0,  CLK_PLL1_DIV2, 0x240),
  84};
  85
  86static const struct mssr_mod_clk r8a7794_mod_clks[] = {
  87        DEF_MOD("msiof0",                  0,   R8A7794_CLK_MP),
  88        DEF_MOD("vcp0",                  101,   R8A7794_CLK_ZS),
  89        DEF_MOD("vpc0",                  103,   R8A7794_CLK_ZS),
  90        DEF_MOD("jpu",                   106,   R8A7794_CLK_M2),
  91        DEF_MOD("tmu1",                  111,   R8A7794_CLK_P),
  92        DEF_MOD("3dg",                   112,   R8A7794_CLK_ZG),
  93        DEF_MOD("2d-dmac",               115,   R8A7794_CLK_ZS),
  94        DEF_MOD("fdp1-0",                119,   R8A7794_CLK_ZS),
  95        DEF_MOD("tmu3",                  121,   R8A7794_CLK_P),
  96        DEF_MOD("tmu2",                  122,   R8A7794_CLK_P),
  97        DEF_MOD("cmt0",                  124,   R8A7794_CLK_R),
  98        DEF_MOD("tmu0",                  125,   R8A7794_CLK_CP),
  99        DEF_MOD("vsp1du0",               128,   R8A7794_CLK_ZS),
 100        DEF_MOD("vsps",                  131,   R8A7794_CLK_ZS),
 101        DEF_MOD("scifa2",                202,   R8A7794_CLK_MP),
 102        DEF_MOD("scifa1",                203,   R8A7794_CLK_MP),
 103        DEF_MOD("scifa0",                204,   R8A7794_CLK_MP),
 104        DEF_MOD("msiof2",                205,   R8A7794_CLK_MP),
 105        DEF_MOD("scifb0",                206,   R8A7794_CLK_MP),
 106        DEF_MOD("scifb1",                207,   R8A7794_CLK_MP),
 107        DEF_MOD("msiof1",                208,   R8A7794_CLK_MP),
 108        DEF_MOD("scifb2",                216,   R8A7794_CLK_MP),
 109        DEF_MOD("sys-dmac1",             218,   R8A7794_CLK_ZS),
 110        DEF_MOD("sys-dmac0",             219,   R8A7794_CLK_ZS),
 111        DEF_MOD("tpu0",                  304,   R8A7794_CLK_CP),
 112        DEF_MOD("sdhi3",                 311,   R8A7794_CLK_SD3),
 113        DEF_MOD("sdhi2",                 312,   R8A7794_CLK_SD2),
 114        DEF_MOD("sdhi0",                 314,   R8A7794_CLK_SD0),
 115        DEF_MOD("mmcif0",                315,   R8A7794_CLK_MMC0),
 116        DEF_MOD("iic0",                  318,   R8A7794_CLK_HP),
 117        DEF_MOD("iic1",                  323,   R8A7794_CLK_HP),
 118        DEF_MOD("cmt1",                  329,   R8A7794_CLK_R),
 119        DEF_MOD("usbhs-dmac0",           330,   R8A7794_CLK_HP),
 120        DEF_MOD("usbhs-dmac1",           331,   R8A7794_CLK_HP),
 121        DEF_MOD("rwdt",                  402,   R8A7794_CLK_R),
 122        DEF_MOD("irqc",                  407,   R8A7794_CLK_CP),
 123        DEF_MOD("intc-sys",              408,   R8A7794_CLK_ZS),
 124        DEF_MOD("audio-dmac0",           502,   R8A7794_CLK_HP),
 125        DEF_MOD("adsp_mod",              506,   R8A7794_CLK_ADSP),
 126        DEF_MOD("pwm",                   523,   R8A7794_CLK_P),
 127        DEF_MOD("usb-ehci",              703,   R8A7794_CLK_MP),
 128        DEF_MOD("usbhs",                 704,   R8A7794_CLK_HP),
 129        DEF_MOD("hscif2",                713,   R8A7794_CLK_ZS),
 130        DEF_MOD("scif5",                 714,   R8A7794_CLK_P),
 131        DEF_MOD("scif4",                 715,   R8A7794_CLK_P),
 132        DEF_MOD("hscif1",                716,   R8A7794_CLK_ZS),
 133        DEF_MOD("hscif0",                717,   R8A7794_CLK_ZS),
 134        DEF_MOD("scif3",                 718,   R8A7794_CLK_P),
 135        DEF_MOD("scif2",                 719,   R8A7794_CLK_P),
 136        DEF_MOD("scif1",                 720,   R8A7794_CLK_P),
 137        DEF_MOD("scif0",                 721,   R8A7794_CLK_P),
 138        DEF_MOD("du1",                   723,   R8A7794_CLK_ZX),
 139        DEF_MOD("du0",                   724,   R8A7794_CLK_ZX),
 140        DEF_MOD("ipmmu-sgx",             800,   R8A7794_CLK_ZX),
 141        DEF_MOD("mlb",                   802,   R8A7794_CLK_HP),
 142        DEF_MOD("vin1",                  810,   R8A7794_CLK_ZG),
 143        DEF_MOD("vin0",                  811,   R8A7794_CLK_ZG),
 144        DEF_MOD("etheravb",              812,   R8A7794_CLK_HP),
 145        DEF_MOD("ether",                 813,   R8A7794_CLK_P),
 146        DEF_MOD("gyro-adc",              901,   R8A7794_CLK_P),
 147        DEF_MOD("gpio6",                 905,   R8A7794_CLK_CP),
 148        DEF_MOD("gpio5",                 907,   R8A7794_CLK_CP),
 149        DEF_MOD("gpio4",                 908,   R8A7794_CLK_CP),
 150        DEF_MOD("gpio3",                 909,   R8A7794_CLK_CP),
 151        DEF_MOD("gpio2",                 910,   R8A7794_CLK_CP),
 152        DEF_MOD("gpio1",                 911,   R8A7794_CLK_CP),
 153        DEF_MOD("gpio0",                 912,   R8A7794_CLK_CP),
 154        DEF_MOD("can1",                  915,   R8A7794_CLK_P),
 155        DEF_MOD("can0",                  916,   R8A7794_CLK_P),
 156        DEF_MOD("qspi_mod",              917,   R8A7794_CLK_QSPI),
 157        DEF_MOD("i2c5",                  925,   R8A7794_CLK_HP),
 158        DEF_MOD("i2c4",                  927,   R8A7794_CLK_HP),
 159        DEF_MOD("i2c3",                  928,   R8A7794_CLK_HP),
 160        DEF_MOD("i2c2",                  929,   R8A7794_CLK_HP),
 161        DEF_MOD("i2c1",                  930,   R8A7794_CLK_HP),
 162        DEF_MOD("i2c0",                  931,   R8A7794_CLK_HP),
 163        DEF_MOD("ssi-all",              1005,   R8A7794_CLK_P),
 164        DEF_MOD("ssi9",                 1006,   MOD_CLK_ID(1005)),
 165        DEF_MOD("ssi8",                 1007,   MOD_CLK_ID(1005)),
 166        DEF_MOD("ssi7",                 1008,   MOD_CLK_ID(1005)),
 167        DEF_MOD("ssi6",                 1009,   MOD_CLK_ID(1005)),
 168        DEF_MOD("ssi5",                 1010,   MOD_CLK_ID(1005)),
 169        DEF_MOD("ssi4",                 1011,   MOD_CLK_ID(1005)),
 170        DEF_MOD("ssi3",                 1012,   MOD_CLK_ID(1005)),
 171        DEF_MOD("ssi2",                 1013,   MOD_CLK_ID(1005)),
 172        DEF_MOD("ssi1",                 1014,   MOD_CLK_ID(1005)),
 173        DEF_MOD("ssi0",                 1015,   MOD_CLK_ID(1005)),
 174        DEF_MOD("scu-all",              1017,   R8A7794_CLK_P),
 175        DEF_MOD("scu-dvc1",             1018,   MOD_CLK_ID(1017)),
 176        DEF_MOD("scu-dvc0",             1019,   MOD_CLK_ID(1017)),
 177        DEF_MOD("scu-ctu1-mix1",        1020,   MOD_CLK_ID(1017)),
 178        DEF_MOD("scu-ctu0-mix0",        1021,   MOD_CLK_ID(1017)),
 179        DEF_MOD("scu-src6",             1025,   MOD_CLK_ID(1017)),
 180        DEF_MOD("scu-src5",             1026,   MOD_CLK_ID(1017)),
 181        DEF_MOD("scu-src4",             1027,   MOD_CLK_ID(1017)),
 182        DEF_MOD("scu-src3",             1028,   MOD_CLK_ID(1017)),
 183        DEF_MOD("scu-src2",             1029,   MOD_CLK_ID(1017)),
 184        DEF_MOD("scu-src1",             1030,   MOD_CLK_ID(1017)),
 185        DEF_MOD("scifa3",               1106,   R8A7794_CLK_MP),
 186        DEF_MOD("scifa4",               1107,   R8A7794_CLK_MP),
 187        DEF_MOD("scifa5",               1108,   R8A7794_CLK_MP),
 188};
 189
 190/*
 191 * CPG Clock Data
 192 */
 193
 194/*
 195 *   MD         EXTAL           PLL0    PLL1    PLL3
 196 * 14 13 19     (MHz)           *1      *2
 197 *---------------------------------------------------
 198 * 0  0  1      15              x200/3  x208/2  x88
 199 * 0  1  1      20              x150/3  x156/2  x66
 200 * 1  0  1      26 / 2          x230/3  x240/2  x102
 201 * 1  1  1      30 / 2          x200/3  x208/2  x88
 202 *
 203 * *1 : Table 7.5c indicates VCO output (PLL0 = VCO/3)
 204 * *2 : Table 7.5c indicates VCO output (PLL1 = VCO/2)
 205 */
 206#define CPG_PLL_CONFIG_INDEX(md)        ((((md) & BIT(14)) >> 13) | \
 207                                         (((md) & BIT(13)) >> 13))
 208static const struct rcar_gen2_cpg_pll_config cpg_pll_configs[4] = {
 209        { 1, 208,  88, 200 },
 210        { 1, 156,  66, 150 },
 211        { 2, 240, 102, 230 },
 212        { 2, 208,  88, 200 },
 213};
 214
 215static const struct mstp_stop_table r8a7794_mstp_table[] = {
 216        { 0x00440801, 0x400000, 0x00440801, 0x0 },
 217        { 0x936899DA, 0x0, 0x936899DA, 0x0 },
 218        { 0x100D21FC, 0x2000, 0x100D21FC, 0x0 },
 219        { 0xE084D810, 0x0, 0xE084D810, 0x0 },
 220        { 0x800001C4, 0x180, 0x800001C4, 0x0 },
 221        { 0x40800044, 0x0, 0x40800044, 0x0 },
 222        { 0x0, 0x0, 0x0, 0x0 }, /* SMSTP6 is not present on Gen2 */
 223        { 0x21BFE618, 0x80000, 0x21BFE618, 0x0 },
 224        { 0x40803C05, 0x0, 0x40803C05, 0x0 },
 225        { 0xFB879FEE, 0x0, 0xFB879FEE, 0x0 },
 226        { 0x7E3EFFE0, 0x0, 0x7E3EFFE0, 0x0 },
 227        { 0x000001C0, 0x0, 0x000001C0, 0x0 },
 228};
 229
 230static const void *r8a7794_get_pll_config(const u32 cpg_mode)
 231{
 232        return &cpg_pll_configs[CPG_PLL_CONFIG_INDEX(cpg_mode)];
 233}
 234
 235static const struct cpg_mssr_info r8a7794_cpg_mssr_info = {
 236        .core_clk               = r8a7794_core_clks,
 237        .core_clk_size          = ARRAY_SIZE(r8a7794_core_clks),
 238        .mod_clk                = r8a7794_mod_clks,
 239        .mod_clk_size           = ARRAY_SIZE(r8a7794_mod_clks),
 240        .mstp_table             = r8a7794_mstp_table,
 241        .mstp_table_size        = ARRAY_SIZE(r8a7794_mstp_table),
 242        .reset_node             = "renesas,r8a7794-rst",
 243        .reset_modemr_offset    = CPG_RST_MODEMR,
 244        .extal_usb_node         = "usb_extal",
 245        .mod_clk_base           = MOD_CLK_BASE,
 246        .clk_extal_id           = CLK_EXTAL,
 247        .clk_extal_usb_id       = CLK_USB_EXTAL,
 248        .pll0_div               = 2,
 249        .get_pll_config         = r8a7794_get_pll_config,
 250};
 251
 252static const struct udevice_id r8a7794_clk_ids[] = {
 253        {
 254                .compatible     = "renesas,r8a7794-cpg-mssr",
 255                .data           = (ulong)&r8a7794_cpg_mssr_info
 256        },
 257        {
 258                .compatible     = "renesas,r8a7793-cpg-mssr",
 259                .data           = (ulong)&r8a7794_cpg_mssr_info
 260        },
 261        { }
 262};
 263
 264U_BOOT_DRIVER(clk_r8a7794) = {
 265        .name           = "clk_r8a7794",
 266        .id             = UCLASS_CLK,
 267        .of_match       = r8a7794_clk_ids,
 268        .priv_auto      = sizeof(struct gen2_clk_priv),
 269        .ops            = &gen2_clk_ops,
 270        .probe          = gen2_clk_probe,
 271        .remove         = gen2_clk_remove,
 272};
 273