uboot/arch/arm/mach-tegra/tegra210/clock.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * (C) Copyright 2013-2015
   4 * NVIDIA Corporation <www.nvidia.com>
   5 */
   6
   7/* Tegra210 Clock control functions */
   8
   9#include <common.h>
  10#include <errno.h>
  11#include <asm/io.h>
  12#include <asm/arch/clock.h>
  13#include <asm/arch/sysctr.h>
  14#include <asm/arch/tegra.h>
  15#include <asm/arch-tegra/clk_rst.h>
  16#include <asm/arch-tegra/timer.h>
  17#include <div64.h>
  18#include <fdtdec.h>
  19
  20/*
  21 * Clock types that we can use as a source. The Tegra210 has muxes for the
  22 * peripheral clocks, and in most cases there are four options for the clock
  23 * source. This gives us a clock 'type' and exploits what commonality exists
  24 * in the device.
  25 *
  26 * Letters are obvious, except for T which means CLK_M, and S which means the
  27 * clock derived from 32KHz. Beware that CLK_M (also called OSC in the
  28 * datasheet) and PLL_M are different things. The former is the basic
  29 * clock supplied to the SOC from an external oscillator. The latter is the
  30 * memory clock PLL.
  31 *
  32 * See definitions in clock_id in the header file.
  33 */
  34enum clock_type_id {
  35        CLOCK_TYPE_AXPT,        /* PLL_A, PLL_X, PLL_P, CLK_M */
  36        CLOCK_TYPE_MCPA,        /* and so on */
  37        CLOCK_TYPE_MCPT,
  38        CLOCK_TYPE_PCM,
  39        CLOCK_TYPE_PCMT,
  40        CLOCK_TYPE_PDCT,
  41        CLOCK_TYPE_ACPT,
  42        CLOCK_TYPE_ASPTE,
  43        CLOCK_TYPE_PDD2T,
  44        CLOCK_TYPE_PCST,
  45        CLOCK_TYPE_DP,
  46
  47        CLOCK_TYPE_PC2CC3M,
  48        CLOCK_TYPE_PC2CC3S_T,
  49        CLOCK_TYPE_PC2CC3M_T,
  50        CLOCK_TYPE_PC2CC3M_T16, /* PC2CC3M_T, but w/16-bit divisor (I2C) */
  51        CLOCK_TYPE_MC2CC3P_A,
  52        CLOCK_TYPE_M,
  53        CLOCK_TYPE_MCPTM2C2C3,
  54        CLOCK_TYPE_PC2CC3T_S,
  55        CLOCK_TYPE_AC2CC3P_TS2,
  56        CLOCK_TYPE_PC01C00_C42C41TC40,
  57
  58        CLOCK_TYPE_COUNT,
  59        CLOCK_TYPE_NONE = -1,   /* invalid clock type */
  60};
  61
  62enum {
  63        CLOCK_MAX_MUX   = 8     /* number of source options for each clock */
  64};
  65
  66/*
  67 * Clock source mux for each clock type. This just converts our enum into
  68 * a list of mux sources for use by the code.
  69 *
  70 * Note:
  71 *  The extra column in each clock source array is used to store the mask
  72 *  bits in its register for the source.
  73 */
  74#define CLK(x) CLOCK_ID_ ## x
  75static enum clock_id clock_source[CLOCK_TYPE_COUNT][CLOCK_MAX_MUX+1] = {
  76        { CLK(AUDIO),   CLK(XCPU),      CLK(PERIPH),    CLK(OSC),
  77                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  78                MASK_BITS_31_30},
  79        { CLK(MEMORY),  CLK(CGENERAL),  CLK(PERIPH),    CLK(AUDIO),
  80                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  81                MASK_BITS_31_30},
  82        { CLK(MEMORY),  CLK(CGENERAL),  CLK(PERIPH),    CLK(OSC),
  83                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  84                MASK_BITS_31_30},
  85        { CLK(PERIPH),  CLK(CGENERAL),  CLK(MEMORY),    CLK(NONE),
  86                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  87                MASK_BITS_31_30},
  88        { CLK(PERIPH),  CLK(CGENERAL),  CLK(MEMORY),    CLK(OSC),
  89                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  90                MASK_BITS_31_30},
  91        { CLK(PERIPH),  CLK(DISPLAY),   CLK(CGENERAL),  CLK(OSC),
  92                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  93                MASK_BITS_31_30},
  94        { CLK(AUDIO),   CLK(CGENERAL),  CLK(PERIPH),    CLK(OSC),
  95                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  96                MASK_BITS_31_30},
  97        { CLK(AUDIO),   CLK(SFROM32KHZ),        CLK(PERIPH),    CLK(OSC),
  98                CLK(EPCI),      CLK(NONE),      CLK(NONE),      CLK(NONE),
  99                MASK_BITS_31_29},
 100        { CLK(PERIPH),  CLK(NONE),      CLK(DISPLAY),   CLK(NONE),
 101                CLK(NONE),      CLK(DISPLAY2),  CLK(OSC),       CLK(NONE),
 102                MASK_BITS_31_29},
 103        { CLK(PERIPH),  CLK(CGENERAL),  CLK(SFROM32KHZ),        CLK(OSC),
 104                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
 105                MASK_BITS_31_28},
 106        /* CLOCK_TYPE_DP */
 107        { CLK(NONE),    CLK(NONE),      CLK(NONE),      CLK(NONE),
 108                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
 109                MASK_BITS_31_28},
 110
 111        /* Additional clock types on Tegra114+ */
 112        /* CLOCK_TYPE_PC2CC3M */
 113        { CLK(PERIPH),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 114                CLK(MEMORY),    CLK(NONE),      CLK(NONE),      CLK(NONE),
 115                MASK_BITS_31_29},
 116        /* CLOCK_TYPE_PC2CC3S_T */
 117        { CLK(PERIPH),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 118                CLK(SFROM32KHZ), CLK(NONE),     CLK(OSC),       CLK(NONE),
 119                MASK_BITS_31_29},
 120        /* CLOCK_TYPE_PC2CC3M_T */
 121        { CLK(PERIPH),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 122                CLK(MEMORY),    CLK(NONE),      CLK(OSC),       CLK(NONE),
 123                MASK_BITS_31_29},
 124        /* CLOCK_TYPE_PC2CC3M_T, w/16-bit divisor (I2C) */
 125        { CLK(PERIPH),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 126                CLK(MEMORY),    CLK(NONE),      CLK(OSC),       CLK(NONE),
 127                MASK_BITS_31_29},
 128        /* CLOCK_TYPE_MC2CC3P_A */
 129        { CLK(MEMORY),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 130                CLK(PERIPH),    CLK(NONE),      CLK(AUDIO),     CLK(NONE),
 131                MASK_BITS_31_29},
 132        /* CLOCK_TYPE_M */
 133        { CLK(MEMORY),          CLK(NONE),      CLK(NONE),      CLK(NONE),
 134                CLK(NONE),      CLK(NONE),      CLK(NONE),      CLK(NONE),
 135                MASK_BITS_31_30},
 136        /* CLOCK_TYPE_MCPTM2C2C3 */
 137        { CLK(MEMORY),  CLK(CGENERAL),  CLK(PERIPH),    CLK(OSC),
 138                CLK(MEMORY2),   CLK(CGENERAL2), CLK(CGENERAL3), CLK(NONE),
 139                MASK_BITS_31_29},
 140        /* CLOCK_TYPE_PC2CC3T_S */
 141        { CLK(PERIPH),  CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 142                CLK(OSC),       CLK(NONE),      CLK(SFROM32KHZ), CLK(NONE),
 143                MASK_BITS_31_29},
 144        /* CLOCK_TYPE_AC2CC3P_TS2 */
 145        { CLK(AUDIO),   CLK(CGENERAL2), CLK(CGENERAL),  CLK(CGENERAL3),
 146                CLK(PERIPH),    CLK(NONE),      CLK(OSC),       CLK(SRC2),
 147                MASK_BITS_31_29},
 148        /* CLOCK_TYPE_PC01C00_C42C41TC40 */
 149        { CLK(PERIPH),  CLK(CGENERAL_1), CLK(CGENERAL_0), CLK(NONE),
 150                CLK(CGENERAL4_2), CLK(CGENERAL4_1), CLK(OSC), CLK(CGENERAL4_0),
 151                MASK_BITS_31_29},
 152};
 153
 154/*
 155 * Clock type for each peripheral clock source. We put the name in each
 156 * record just so it is easy to match things up
 157 */
 158#define TYPE(name, type) type
 159static enum clock_type_id clock_periph_type[PERIPHC_COUNT] = {
 160        /* 0x00 */
 161        TYPE(PERIPHC_I2S2,      CLOCK_TYPE_AXPT),
 162        TYPE(PERIPHC_I2S3,      CLOCK_TYPE_AXPT),
 163        TYPE(PERIPHC_SPDIF_OUT, CLOCK_TYPE_AXPT),
 164        TYPE(PERIPHC_SPDIF_IN,  CLOCK_TYPE_PC2CC3M),
 165        TYPE(PERIPHC_PWM,       CLOCK_TYPE_PC2CC3S_T),
 166        TYPE(PERIPHC_05h,       CLOCK_TYPE_NONE),
 167        TYPE(PERIPHC_SBC2,      CLOCK_TYPE_PC2CC3M_T),
 168        TYPE(PERIPHC_SBC3,      CLOCK_TYPE_PC2CC3M_T),
 169
 170        /* 0x08 */
 171        TYPE(PERIPHC_08h,       CLOCK_TYPE_NONE),
 172        TYPE(PERIPHC_I2C1,      CLOCK_TYPE_PC2CC3M_T16),
 173        TYPE(PERIPHC_I2C5,      CLOCK_TYPE_PC2CC3M_T16),
 174        TYPE(PERIPHC_0bh,       CLOCK_TYPE_NONE),
 175        TYPE(PERIPHC_0ch,       CLOCK_TYPE_NONE),
 176        TYPE(PERIPHC_SBC1,      CLOCK_TYPE_PC2CC3M_T),
 177        TYPE(PERIPHC_DISP1,     CLOCK_TYPE_PDD2T),
 178        TYPE(PERIPHC_DISP2,     CLOCK_TYPE_PDD2T),
 179
 180        /* 0x10 */
 181        TYPE(PERIPHC_10h,       CLOCK_TYPE_NONE),
 182        TYPE(PERIPHC_11h,       CLOCK_TYPE_NONE),
 183        TYPE(PERIPHC_VI,        CLOCK_TYPE_MC2CC3P_A),
 184        TYPE(PERIPHC_13h,       CLOCK_TYPE_NONE),
 185        TYPE(PERIPHC_SDMMC1,    CLOCK_TYPE_PC2CC3M_T),
 186        TYPE(PERIPHC_SDMMC2,    CLOCK_TYPE_PC2CC3M_T),
 187        TYPE(PERIPHC_16h,       CLOCK_TYPE_NONE),
 188        TYPE(PERIPHC_17h,       CLOCK_TYPE_NONE),
 189
 190        /* 0x18 */
 191        TYPE(PERIPHC_18h,       CLOCK_TYPE_NONE),
 192        TYPE(PERIPHC_SDMMC4,    CLOCK_TYPE_PC2CC3M_T),
 193        TYPE(PERIPHC_VFIR,      CLOCK_TYPE_PC2CC3M_T),
 194        TYPE(PERIPHC_1Bh,       CLOCK_TYPE_NONE),
 195        TYPE(PERIPHC_1Ch,       CLOCK_TYPE_NONE),
 196        TYPE(PERIPHC_HSI,       CLOCK_TYPE_PC2CC3M_T),
 197        TYPE(PERIPHC_UART1,     CLOCK_TYPE_PC2CC3M_T),
 198        TYPE(PERIPHC_UART2,     CLOCK_TYPE_PC2CC3M_T),
 199
 200        /* 0x20 */
 201        TYPE(PERIPHC_HOST1X,    CLOCK_TYPE_MC2CC3P_A),
 202        TYPE(PERIPHC_21h,       CLOCK_TYPE_NONE),
 203        TYPE(PERIPHC_22h,       CLOCK_TYPE_NONE),
 204        TYPE(PERIPHC_23h,       CLOCK_TYPE_NONE),
 205        TYPE(PERIPHC_24h,       CLOCK_TYPE_NONE),
 206        TYPE(PERIPHC_25h,       CLOCK_TYPE_NONE),
 207        TYPE(PERIPHC_I2C2,      CLOCK_TYPE_PC2CC3M_T16),
 208        TYPE(PERIPHC_EMC,       CLOCK_TYPE_MCPTM2C2C3),
 209
 210        /* 0x28 */
 211        TYPE(PERIPHC_UART3,     CLOCK_TYPE_PC2CC3M_T),
 212        TYPE(PERIPHC_29h,       CLOCK_TYPE_NONE),
 213        TYPE(PERIPHC_VI_SENSOR, CLOCK_TYPE_MC2CC3P_A),
 214        TYPE(PERIPHC_2bh,       CLOCK_TYPE_NONE),
 215        TYPE(PERIPHC_2ch,       CLOCK_TYPE_NONE),
 216        TYPE(PERIPHC_SBC4,      CLOCK_TYPE_PC2CC3M_T),
 217        TYPE(PERIPHC_I2C3,      CLOCK_TYPE_PC2CC3M_T16),
 218        TYPE(PERIPHC_SDMMC3,    CLOCK_TYPE_PC2CC3M_T),
 219
 220        /* 0x30 */
 221        TYPE(PERIPHC_UART4,     CLOCK_TYPE_PC2CC3M_T),
 222        TYPE(PERIPHC_UART5,     CLOCK_TYPE_PC2CC3M_T),
 223        TYPE(PERIPHC_VDE,       CLOCK_TYPE_PC2CC3M_T),
 224        TYPE(PERIPHC_OWR,       CLOCK_TYPE_PC2CC3M_T),
 225        TYPE(PERIPHC_NOR,       CLOCK_TYPE_PC2CC3M_T),
 226        TYPE(PERIPHC_CSITE,     CLOCK_TYPE_PC2CC3M_T),
 227        TYPE(PERIPHC_I2S1,      CLOCK_TYPE_AXPT),
 228        TYPE(PERIPHC_DTV,       CLOCK_TYPE_NONE),
 229
 230        /* 0x38 */
 231        TYPE(PERIPHC_38h,       CLOCK_TYPE_NONE),
 232        TYPE(PERIPHC_39h,       CLOCK_TYPE_NONE),
 233        TYPE(PERIPHC_3ah,       CLOCK_TYPE_NONE),
 234        TYPE(PERIPHC_3bh,       CLOCK_TYPE_NONE),
 235        TYPE(PERIPHC_MSENC,     CLOCK_TYPE_MC2CC3P_A),
 236        TYPE(PERIPHC_TSEC,      CLOCK_TYPE_PC2CC3M_T),
 237        TYPE(PERIPHC_3eh,       CLOCK_TYPE_NONE),
 238        TYPE(PERIPHC_OSC,       CLOCK_TYPE_NONE),
 239
 240        /* 0x40 */
 241        TYPE(PERIPHC_40h,       CLOCK_TYPE_NONE),       /* start with 0x3b0 */
 242        TYPE(PERIPHC_MSELECT,   CLOCK_TYPE_PC2CC3M_T),
 243        TYPE(PERIPHC_TSENSOR,   CLOCK_TYPE_PC2CC3T_S),
 244        TYPE(PERIPHC_I2S4,      CLOCK_TYPE_AXPT),
 245        TYPE(PERIPHC_I2S5,      CLOCK_TYPE_AXPT),
 246        TYPE(PERIPHC_I2C4,      CLOCK_TYPE_PC2CC3M_T16),
 247        TYPE(PERIPHC_SBC5,      CLOCK_TYPE_PC2CC3M_T),
 248        TYPE(PERIPHC_SBC6,      CLOCK_TYPE_PC2CC3M_T),
 249
 250        /* 0x48 */
 251        TYPE(PERIPHC_AUDIO,     CLOCK_TYPE_AC2CC3P_TS2),
 252        TYPE(PERIPHC_49h,       CLOCK_TYPE_NONE),
 253        TYPE(PERIPHC_4ah,       CLOCK_TYPE_NONE),
 254        TYPE(PERIPHC_4bh,       CLOCK_TYPE_NONE),
 255        TYPE(PERIPHC_4ch,       CLOCK_TYPE_NONE),
 256        TYPE(PERIPHC_HDA2CODEC2X, CLOCK_TYPE_PC2CC3M_T),
 257        TYPE(PERIPHC_ACTMON,    CLOCK_TYPE_PC2CC3S_T),
 258        TYPE(PERIPHC_EXTPERIPH1, CLOCK_TYPE_ASPTE),
 259
 260        /* 0x50 */
 261        TYPE(PERIPHC_EXTPERIPH2, CLOCK_TYPE_ASPTE),
 262        TYPE(PERIPHC_EXTPERIPH3, CLOCK_TYPE_ASPTE),
 263        TYPE(PERIPHC_52h,       CLOCK_TYPE_NONE),
 264        TYPE(PERIPHC_I2CSLOW,   CLOCK_TYPE_PC2CC3S_T),
 265        TYPE(PERIPHC_SYS,       CLOCK_TYPE_NONE),
 266        TYPE(PERIPHC_55h,       CLOCK_TYPE_NONE),
 267        TYPE(PERIPHC_56h,       CLOCK_TYPE_NONE),
 268        TYPE(PERIPHC_57h,       CLOCK_TYPE_NONE),
 269
 270        /* 0x58 */
 271        TYPE(PERIPHC_58h,       CLOCK_TYPE_NONE),
 272        TYPE(PERIPHC_59h,       CLOCK_TYPE_NONE),
 273        TYPE(PERIPHC_5ah,       CLOCK_TYPE_NONE),
 274        TYPE(PERIPHC_5bh,       CLOCK_TYPE_NONE),
 275        TYPE(PERIPHC_SATAOOB,   CLOCK_TYPE_PCMT),
 276        TYPE(PERIPHC_SATA,      CLOCK_TYPE_PCMT),
 277        TYPE(PERIPHC_HDA,       CLOCK_TYPE_PC2CC3M_T),
 278        TYPE(PERIPHC_5fh,       CLOCK_TYPE_NONE),
 279
 280        /* 0x60 */
 281        TYPE(PERIPHC_XUSB_CORE_HOST, CLOCK_TYPE_NONE),
 282        TYPE(PERIPHC_XUSB_FALCON, CLOCK_TYPE_NONE),
 283        TYPE(PERIPHC_XUSB_FS,   CLOCK_TYPE_NONE),
 284        TYPE(PERIPHC_XUSB_CORE_DEV, CLOCK_TYPE_NONE),
 285        TYPE(PERIPHC_XUSB_SS,   CLOCK_TYPE_NONE),
 286        TYPE(PERIPHC_CILAB,     CLOCK_TYPE_NONE),
 287        TYPE(PERIPHC_CILCD,     CLOCK_TYPE_NONE),
 288        TYPE(PERIPHC_CILE,      CLOCK_TYPE_NONE),
 289
 290        /* 0x68 */
 291        TYPE(PERIPHC_DSIA_LP,   CLOCK_TYPE_NONE),
 292        TYPE(PERIPHC_DSIB_LP,   CLOCK_TYPE_NONE),
 293        TYPE(PERIPHC_ENTROPY,   CLOCK_TYPE_NONE),
 294        TYPE(PERIPHC_DVFS_REF,  CLOCK_TYPE_NONE),
 295        TYPE(PERIPHC_DVFS_SOC,  CLOCK_TYPE_NONE),
 296        TYPE(PERIPHC_TRACECLKIN, CLOCK_TYPE_NONE),
 297        TYPE(PERIPHC_6eh,       CLOCK_TYPE_NONE),
 298        TYPE(PERIPHC_6fh,       CLOCK_TYPE_NONE),
 299
 300        /* 0x70 */
 301        TYPE(PERIPHC_EMC_LATENCY, CLOCK_TYPE_NONE),
 302        TYPE(PERIPHC_SOC_THERM, CLOCK_TYPE_NONE),
 303        TYPE(PERIPHC_72h,       CLOCK_TYPE_NONE),
 304        TYPE(PERIPHC_73h,       CLOCK_TYPE_NONE),
 305        TYPE(PERIPHC_74h,       CLOCK_TYPE_NONE),
 306        TYPE(PERIPHC_75h,       CLOCK_TYPE_NONE),
 307        TYPE(PERIPHC_VI_SENSOR2, CLOCK_TYPE_NONE),
 308        TYPE(PERIPHC_I2C6,      CLOCK_TYPE_PC2CC3M_T16),
 309
 310        /* 0x78 */
 311        TYPE(PERIPHC_78h,       CLOCK_TYPE_NONE),
 312        TYPE(PERIPHC_EMC_DLL,   CLOCK_TYPE_MCPTM2C2C3),
 313        TYPE(PERIPHC_7ah,       CLOCK_TYPE_NONE),
 314        TYPE(PERIPHC_CLK72MHZ,  CLOCK_TYPE_NONE),
 315        TYPE(PERIPHC_7ch,       CLOCK_TYPE_NONE),
 316        TYPE(PERIPHC_7dh,       CLOCK_TYPE_NONE),
 317        TYPE(PERIPHC_VIC,       CLOCK_TYPE_NONE),
 318        TYPE(PERIPHC_7Fh,       CLOCK_TYPE_NONE),
 319
 320        /* 0x80 */
 321        TYPE(PERIPHC_SDMMC_LEGACY_TM,   CLOCK_TYPE_NONE),
 322        TYPE(PERIPHC_NVDEC,     CLOCK_TYPE_NONE),
 323        TYPE(PERIPHC_NVJPG,     CLOCK_TYPE_NONE),
 324        TYPE(PERIPHC_NVENC,     CLOCK_TYPE_NONE),
 325        TYPE(PERIPHC_84h,       CLOCK_TYPE_NONE),
 326        TYPE(PERIPHC_85h,       CLOCK_TYPE_NONE),
 327        TYPE(PERIPHC_86h,       CLOCK_TYPE_NONE),
 328        TYPE(PERIPHC_87h,       CLOCK_TYPE_NONE),
 329
 330        /* 0x88 */
 331        TYPE(PERIPHC_88h,       CLOCK_TYPE_NONE),
 332        TYPE(PERIPHC_89h,       CLOCK_TYPE_NONE),
 333        TYPE(PERIPHC_DMIC3,     CLOCK_TYPE_NONE),
 334        TYPE(PERIPHC_APE,       CLOCK_TYPE_NONE),
 335        TYPE(PERIPHC_QSPI,      CLOCK_TYPE_PC01C00_C42C41TC40),
 336        TYPE(PERIPHC_VI_I2C,    CLOCK_TYPE_NONE),
 337        TYPE(PERIPHC_USB2_HSIC_TRK, CLOCK_TYPE_NONE),
 338        TYPE(PERIPHC_PEX_SATA_USB_RX_BYP, CLOCK_TYPE_NONE),
 339
 340        /* 0x90 */
 341        TYPE(PERIPHC_MAUD,      CLOCK_TYPE_NONE),
 342        TYPE(PERIPHC_TSECB,     CLOCK_TYPE_NONE),
 343};
 344
 345/*
 346 * This array translates a periph_id to a periphc_internal_id
 347 *
 348 * Not present/matched up:
 349 *      uint vi_sensor;  _VI_SENSOR_0,          0x1A8
 350 *      SPDIF - which is both 0x08 and 0x0c
 351 *
 352 */
 353#define NONE(name) (-1)
 354#define OFFSET(name, value) PERIPHC_ ## name
 355#define INTERNAL_ID(id) (id & 0x000000ff)
 356static s8 periph_id_to_internal_id[PERIPH_ID_COUNT] = {
 357        /* Low word: 31:0 */
 358        NONE(CPU),
 359        NONE(COP),
 360        NONE(TRIGSYS),
 361        NONE(ISPB),
 362        NONE(RESERVED4),
 363        NONE(TMR),
 364        PERIPHC_UART1,
 365        PERIPHC_UART2,  /* and vfir 0x68 */
 366
 367        /* 8 */
 368        NONE(GPIO),
 369        PERIPHC_SDMMC2,
 370        PERIPHC_SPDIF_IN,
 371        PERIPHC_I2S2,
 372        PERIPHC_I2C1,
 373        NONE(RESERVED13),
 374        PERIPHC_SDMMC1,
 375        PERIPHC_SDMMC4,
 376
 377        /* 16 */
 378        NONE(TCW),
 379        PERIPHC_PWM,
 380        PERIPHC_I2S3,
 381        NONE(RESERVED19),
 382        PERIPHC_VI,
 383        NONE(RESERVED21),
 384        NONE(USBD),
 385        NONE(ISP),
 386
 387        /* 24 */
 388        NONE(RESERVED24),
 389        NONE(RESERVED25),
 390        PERIPHC_DISP2,
 391        PERIPHC_DISP1,
 392        PERIPHC_HOST1X,
 393        NONE(VCP),
 394        PERIPHC_I2S1,
 395        NONE(CACHE2),
 396
 397        /* Middle word: 63:32 */
 398        NONE(MEM),
 399        NONE(AHBDMA),
 400        NONE(APBDMA),
 401        NONE(RESERVED35),
 402        NONE(RESERVED36),
 403        NONE(STAT_MON),
 404        NONE(RESERVED38),
 405        NONE(FUSE),
 406
 407        /* 40 */
 408        NONE(KFUSE),
 409        PERIPHC_SBC1,           /* SBCx = SPIx */
 410        PERIPHC_NOR,
 411        NONE(RESERVED43),
 412        PERIPHC_SBC2,
 413        NONE(XIO),
 414        PERIPHC_SBC3,
 415        PERIPHC_I2C5,
 416
 417        /* 48 */
 418        NONE(DSI),
 419        NONE(RESERVED49),
 420        PERIPHC_HSI,
 421        NONE(RESERVED51),
 422        NONE(CSI),
 423        NONE(RESERVED53),
 424        PERIPHC_I2C2,
 425        PERIPHC_UART3,
 426
 427        /* 56 */
 428        NONE(MIPI_CAL),
 429        PERIPHC_EMC,
 430        NONE(USB2),
 431        NONE(USB3),
 432        NONE(RESERVED60),
 433        PERIPHC_VDE,
 434        NONE(BSEA),
 435        NONE(BSEV),
 436
 437        /* Upper word 95:64 */
 438        NONE(RESERVED64),
 439        PERIPHC_UART4,
 440        PERIPHC_UART5,
 441        PERIPHC_I2C3,
 442        PERIPHC_SBC4,
 443        PERIPHC_SDMMC3,
 444        NONE(PCIE),
 445        PERIPHC_OWR,
 446
 447        /* 72 */
 448        NONE(AFI),
 449        PERIPHC_CSITE,
 450        NONE(PCIEXCLK),
 451        NONE(AVPUCQ),
 452        NONE(LA),
 453        NONE(TRACECLKIN),
 454        NONE(SOC_THERM),
 455        NONE(DTV),
 456
 457        /* 80 */
 458        NONE(RESERVED80),
 459        PERIPHC_I2CSLOW,
 460        NONE(DSIB),
 461        PERIPHC_TSEC,
 462        NONE(RESERVED84),
 463        NONE(RESERVED85),
 464        NONE(RESERVED86),
 465        NONE(EMUCIF),
 466
 467        /* 88 */
 468        NONE(RESERVED88),
 469        NONE(XUSB_HOST),
 470        NONE(RESERVED90),
 471        PERIPHC_MSENC,
 472        NONE(RESERVED92),
 473        NONE(RESERVED93),
 474        NONE(RESERVED94),
 475        NONE(XUSB_DEV),
 476
 477        /* V word: 31:0 */
 478        NONE(CPUG),
 479        NONE(CPULP),
 480        NONE(V_RESERVED2),
 481        PERIPHC_MSELECT,
 482        NONE(V_RESERVED4),
 483        PERIPHC_I2S4,
 484        PERIPHC_I2S5,
 485        PERIPHC_I2C4,
 486
 487        /* 104 */
 488        PERIPHC_SBC5,
 489        PERIPHC_SBC6,
 490        PERIPHC_AUDIO,
 491        NONE(APBIF),
 492        NONE(V_RESERVED12),
 493        NONE(V_RESERVED13),
 494        NONE(V_RESERVED14),
 495        PERIPHC_HDA2CODEC2X,
 496
 497        /* 112 */
 498        NONE(ATOMICS),
 499        NONE(V_RESERVED17),
 500        NONE(V_RESERVED18),
 501        NONE(V_RESERVED19),
 502        NONE(V_RESERVED20),
 503        NONE(V_RESERVED21),
 504        NONE(V_RESERVED22),
 505        PERIPHC_ACTMON,
 506
 507        /* 120 */
 508        NONE(EXTPERIPH1),
 509        NONE(EXTPERIPH2),
 510        NONE(EXTPERIPH3),
 511        NONE(OOB),
 512        PERIPHC_SATA,
 513        PERIPHC_HDA,
 514        NONE(TZRAM),
 515        NONE(SE),
 516
 517        /* W word: 31:0 */
 518        NONE(HDA2HDMICODEC),
 519        NONE(SATACOLD),
 520        NONE(W_RESERVED2),
 521        NONE(W_RESERVED3),
 522        NONE(W_RESERVED4),
 523        NONE(W_RESERVED5),
 524        NONE(W_RESERVED6),
 525        NONE(W_RESERVED7),
 526
 527        /* 136 */
 528        NONE(CEC),
 529        NONE(W_RESERVED9),
 530        NONE(W_RESERVED10),
 531        NONE(W_RESERVED11),
 532        NONE(W_RESERVED12),
 533        NONE(W_RESERVED13),
 534        NONE(XUSB_PADCTL),
 535        NONE(W_RESERVED15),
 536
 537        /* 144 */
 538        NONE(W_RESERVED16),
 539        NONE(W_RESERVED17),
 540        NONE(W_RESERVED18),
 541        NONE(W_RESERVED19),
 542        NONE(W_RESERVED20),
 543        NONE(ENTROPY),
 544        NONE(DDS),
 545        NONE(W_RESERVED23),
 546
 547        /* 152 */
 548        NONE(W_RESERVED24),
 549        NONE(W_RESERVED25),
 550        NONE(W_RESERVED26),
 551        NONE(DVFS),
 552        NONE(XUSB_SS),
 553        NONE(W_RESERVED29),
 554        NONE(W_RESERVED30),
 555        NONE(W_RESERVED31),
 556
 557        /* X word: 31:0 */
 558        NONE(SPARE),
 559        NONE(X_RESERVED1),
 560        NONE(X_RESERVED2),
 561        NONE(X_RESERVED3),
 562        NONE(CAM_MCLK),
 563        NONE(CAM_MCLK2),
 564        PERIPHC_I2C6,
 565        NONE(X_RESERVED7),
 566
 567        /* 168 */
 568        NONE(X_RESERVED8),
 569        NONE(X_RESERVED9),
 570        NONE(X_RESERVED10),
 571        NONE(VIM2_CLK),
 572        NONE(X_RESERVED12),
 573        NONE(X_RESERVED13),
 574        NONE(EMC_DLL),
 575        NONE(X_RESERVED15),
 576
 577        /* 176 */
 578        NONE(X_RESERVED16),
 579        NONE(CLK72MHZ),
 580        NONE(VIC),
 581        NONE(X_RESERVED19),
 582        NONE(X_RESERVED20),
 583        NONE(DPAUX),
 584        NONE(SOR0),
 585        NONE(X_RESERVED23),
 586
 587        /* 184 */
 588        NONE(GPU),
 589        NONE(X_RESERVED25),
 590        NONE(X_RESERVED26),
 591        NONE(X_RESERVED27),
 592        NONE(X_RESERVED28),
 593        NONE(X_RESERVED29),
 594        NONE(X_RESERVED30),
 595        NONE(X_RESERVED31),
 596
 597        /* Y: 192 (192 - 223) */
 598        NONE(Y_RESERVED0),
 599        PERIPHC_SDMMC_LEGACY_TM,
 600        PERIPHC_NVDEC,
 601        PERIPHC_NVJPG,
 602        NONE(Y_RESERVED4),
 603        PERIPHC_DMIC3,          /* 197 */
 604        PERIPHC_APE,            /* 198 */
 605        NONE(Y_RESERVED7),
 606
 607        /* 200 */
 608        NONE(Y_RESERVED8),
 609        NONE(Y_RESERVED9),
 610        NONE(Y_RESERVED10),
 611        NONE(Y_RESERVED11),
 612        NONE(Y_RESERVED12),
 613        NONE(Y_RESERVED13),
 614        NONE(Y_RESERVED14),
 615        NONE(Y_RESERVED15),
 616
 617        /* 208 */
 618        PERIPHC_VI_I2C,         /* 208 */
 619        NONE(Y_RESERVED17),
 620        NONE(Y_RESERVED18),
 621        PERIPHC_QSPI,           /* 211 */
 622        NONE(Y_RESERVED20),
 623        NONE(Y_RESERVED21),
 624        NONE(Y_RESERVED22),
 625        NONE(Y_RESERVED23),
 626
 627        /* 216 */
 628        NONE(Y_RESERVED24),
 629        NONE(Y_RESERVED25),
 630        NONE(Y_RESERVED26),
 631        PERIPHC_NVENC,          /* 219 */
 632        NONE(Y_RESERVED28),
 633        NONE(Y_RESERVED29),
 634        NONE(Y_RESERVED30),
 635        NONE(Y_RESERVED31),
 636};
 637
 638/*
 639 * PLL divider shift/mask tables for all PLL IDs.
 640 */
 641struct clk_pll_info tegra_pll_info_table[CLOCK_ID_PLL_COUNT] = {
 642        /*
 643         * NOTE: If kcp_mask/kvco_mask == 0, they're not used in that PLL (PLLC, etc.)
 644         *       If lock_ena or lock_det are >31, they're not used in that PLL (PLLC, etc.)
 645         */
 646        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
 647          .lock_ena = 32,  .lock_det = 27, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 },    /* PLLC */
 648        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8,  .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
 649          .lock_ena = 4,  .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 },     /* PLLM */
 650        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 10, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
 651          .lock_ena = 18, .lock_det = 27, .kcp_shift = 0, .kcp_mask = 3, .kvco_shift = 2, .kvco_mask = 1 },     /* PLLP */
 652        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8,  .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
 653          .lock_ena = 28, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 },   /* PLLA */
 654        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8,  .n_mask = 0xFF, .p_shift = 16, .p_mask = 0x1F,
 655          .lock_ena = 29, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 },   /* PLLU */
 656        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 11, .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x07,
 657          .lock_ena = 18, .lock_det = 27, .kcp_shift = 23, .kcp_mask = 3, .kvco_shift = 22, .kvco_mask = 1 },   /* PLLD */
 658        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8,  .n_mask = 0xFF, .p_shift = 20, .p_mask = 0x1F,
 659          .lock_ena = 18, .lock_det = 27, .kcp_shift = 1, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 },     /* PLLX */
 660        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8,  .n_mask = 0xFF, .p_shift = 0,  .p_mask = 0,
 661          .lock_ena = 9,  .lock_det = 11, .kcp_shift = 6, .kcp_mask = 3, .kvco_shift = 0, .kvco_mask = 1 },     /* PLLE */
 662        { .m_shift = 0, .m_mask = 0, .n_shift = 0, .n_mask = 0, .p_shift = 0, .p_mask = 0,
 663          .lock_ena = 0, .lock_det = 0, .kcp_shift = 0, .kcp_mask = 0, .kvco_shift = 0, .kvco_mask = 0 },       /* PLLS (gone)*/
 664        { .m_shift = 0, .m_mask = 0xFF, .n_shift = 8, .n_mask = 0xFF,  .p_shift = 19,  .p_mask = 0x1F,
 665          .lock_ena = 30, .lock_det = 27, .kcp_shift = 25, .kcp_mask = 3, .kvco_shift = 24, .kvco_mask = 1 },   /* PLLDP */
 666};
 667
 668/*
 669 * Get the oscillator frequency, from the corresponding hardware configuration
 670 * field. Note that Tegra30+ support 3 new higher freqs, but we map back
 671 * to the old T20 freqs. Support for the higher oscillators is TBD.
 672 */
 673enum clock_osc_freq clock_get_osc_freq(void)
 674{
 675        struct clk_rst_ctlr *clkrst =
 676                        (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 677        u32 reg;
 678
 679        reg = readl(&clkrst->crc_osc_ctrl);
 680        reg = (reg & OSC_FREQ_MASK) >> OSC_FREQ_SHIFT;
 681        /*
 682         * 0 = 13MHz, 1 = 16.8MHz, 4 = 19.2MHz, 5 = 38.4MHz,
 683         * 8 = 12MHz, 9 = 48MHz,  12 = 26MHz
 684         */
 685        if (reg == 5) {
 686                debug("OSC_FREQ is 38.4MHz (%d) ...\n", reg);
 687                /* Map it to the 5th CLOCK_OSC_ enum, i.e. 4 */
 688                return 4;
 689        }
 690
 691        /*
 692         * Map to most common (T20) freqs (except 38.4, handled above):
 693         *  13/16.8 = 0, 19.2 = 1, 12/48 = 2, 26 = 3
 694         */
 695        return reg >> 2;
 696}
 697
 698/* Returns a pointer to the clock source register for a peripheral */
 699u32 *get_periph_source_reg(enum periph_id periph_id)
 700{
 701        struct clk_rst_ctlr *clkrst =
 702                (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 703        enum periphc_internal_id internal_id;
 704
 705        /* Coresight is a special case */
 706        if (periph_id == PERIPH_ID_CSI)
 707                return &clkrst->crc_clk_src[PERIPH_ID_CSI+1];
 708
 709        assert(periph_id >= PERIPH_ID_FIRST && periph_id < PERIPH_ID_COUNT);
 710        internal_id = INTERNAL_ID(periph_id_to_internal_id[periph_id]);
 711        assert(internal_id != -1);
 712
 713        if (internal_id < PERIPHC_VW_FIRST)
 714                /* L, H, U */
 715                return &clkrst->crc_clk_src[internal_id];
 716
 717        if (internal_id < PERIPHC_X_FIRST) {
 718                /* VW */
 719                internal_id -= PERIPHC_VW_FIRST;
 720                return &clkrst->crc_clk_src_vw[internal_id];
 721        }
 722
 723        if (internal_id < PERIPHC_Y_FIRST) {
 724                /* X */
 725                internal_id -= PERIPHC_X_FIRST;
 726                return &clkrst->crc_clk_src_x[internal_id];
 727        }
 728
 729        /* Y */
 730        internal_id -= PERIPHC_Y_FIRST;
 731        return &clkrst->crc_clk_src_y[internal_id];
 732}
 733
 734int get_periph_clock_info(enum periph_id periph_id, int *mux_bits,
 735                          int *divider_bits, int *type)
 736{
 737        enum periphc_internal_id internal_id;
 738
 739        if (!clock_periph_id_isvalid(periph_id))
 740                return -1;
 741
 742        internal_id = periph_id_to_internal_id[periph_id];
 743        if (!periphc_internal_id_isvalid(internal_id))
 744                return -1;
 745
 746        *type = clock_periph_type[internal_id];
 747        if (!clock_type_id_isvalid(*type))
 748                return -1;
 749
 750        *mux_bits = clock_source[*type][CLOCK_MAX_MUX];
 751
 752        if (*type == CLOCK_TYPE_PC2CC3M_T16)
 753                *divider_bits = 16;
 754        else
 755                *divider_bits = 8;
 756
 757        return 0;
 758}
 759
 760enum clock_id get_periph_clock_id(enum periph_id periph_id, int source)
 761{
 762        enum periphc_internal_id internal_id;
 763        int type;
 764
 765        if (!clock_periph_id_isvalid(periph_id))
 766                return CLOCK_ID_NONE;
 767
 768        internal_id = periph_id_to_internal_id[periph_id];
 769        if (!periphc_internal_id_isvalid(internal_id))
 770                return CLOCK_ID_NONE;
 771
 772        type = clock_periph_type[internal_id];
 773        if (!clock_type_id_isvalid(type))
 774                return CLOCK_ID_NONE;
 775
 776        return clock_source[type][source];
 777}
 778
 779/**
 780 * Given a peripheral ID and the required source clock, this returns which
 781 * value should be programmed into the source mux for that peripheral.
 782 *
 783 * There is special code here to handle the one source type with 5 sources.
 784 *
 785 * @param periph_id     peripheral to start
 786 * @param source        PLL id of required parent clock
 787 * @param mux_bits      Set to number of bits in mux register: 2 or 4
 788 * @param divider_bits Set to number of divider bits (8 or 16)
 789 * @return mux value (0-4, or -1 if not found)
 790 */
 791int get_periph_clock_source(enum periph_id periph_id,
 792        enum clock_id parent, int *mux_bits, int *divider_bits)
 793{
 794        enum clock_type_id type;
 795        int mux, err;
 796
 797        err = get_periph_clock_info(periph_id, mux_bits, divider_bits, &type);
 798        assert(!err);
 799
 800        for (mux = 0; mux < CLOCK_MAX_MUX; mux++)
 801                if (clock_source[type][mux] == parent)
 802                        return mux;
 803
 804        /* if we get here, either us or the caller has made a mistake */
 805        printf("Caller requested bad clock: periph=%d, parent=%d\n", periph_id,
 806               parent);
 807        return -1;
 808}
 809
 810void clock_set_enable(enum periph_id periph_id, int enable)
 811{
 812        struct clk_rst_ctlr *clkrst =
 813                (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 814        u32 *clk;
 815        u32 reg;
 816
 817        /* Enable/disable the clock to this peripheral */
 818        assert(clock_periph_id_isvalid(periph_id));
 819        if ((int)periph_id < (int)PERIPH_ID_VW_FIRST)
 820                clk = &clkrst->crc_clk_out_enb[PERIPH_REG(periph_id)];
 821        else if ((int)periph_id < (int)PERIPH_ID_X_FIRST)
 822                clk = &clkrst->crc_clk_out_enb_vw[PERIPH_REG(periph_id)];
 823        else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST)
 824                clk = &clkrst->crc_clk_out_enb_x;
 825        else
 826                clk = &clkrst->crc_clk_out_enb_y;
 827
 828        reg = readl(clk);
 829        if (enable)
 830                reg |= PERIPH_MASK(periph_id);
 831        else
 832                reg &= ~PERIPH_MASK(periph_id);
 833        writel(reg, clk);
 834}
 835
 836void reset_set_enable(enum periph_id periph_id, int enable)
 837{
 838        struct clk_rst_ctlr *clkrst =
 839                (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 840        u32 *reset;
 841        u32 reg;
 842
 843        /* Enable/disable reset to the peripheral */
 844        assert(clock_periph_id_isvalid(periph_id));
 845        if (periph_id < PERIPH_ID_VW_FIRST)
 846                reset = &clkrst->crc_rst_dev[PERIPH_REG(periph_id)];
 847        else if ((int)periph_id < (int)PERIPH_ID_X_FIRST)
 848                reset = &clkrst->crc_rst_dev_vw[PERIPH_REG(periph_id)];
 849        else if ((int)periph_id < (int)PERIPH_ID_Y_FIRST)
 850                reset = &clkrst->crc_rst_devices_x;
 851        else
 852                reset = &clkrst->crc_rst_devices_y;
 853
 854        reg = readl(reset);
 855        if (enable)
 856                reg |= PERIPH_MASK(periph_id);
 857        else
 858                reg &= ~PERIPH_MASK(periph_id);
 859        writel(reg, reset);
 860}
 861
 862#ifdef CONFIG_OF_CONTROL
 863/*
 864 * Convert a device tree clock ID to our peripheral ID. They are mostly
 865 * the same but we are very cautious so we check that a valid clock ID is
 866 * provided.
 867 *
 868 * @param clk_id    Clock ID according to tegra210 device tree binding
 869 * @return peripheral ID, or PERIPH_ID_NONE if the clock ID is invalid
 870 */
 871enum periph_id clk_id_to_periph_id(int clk_id)
 872{
 873        if (clk_id > PERIPH_ID_COUNT)
 874                return PERIPH_ID_NONE;
 875
 876        switch (clk_id) {
 877        case PERIPH_ID_RESERVED4:
 878        case PERIPH_ID_RESERVED25:
 879        case PERIPH_ID_RESERVED35:
 880        case PERIPH_ID_RESERVED36:
 881        case PERIPH_ID_RESERVED38:
 882        case PERIPH_ID_RESERVED43:
 883        case PERIPH_ID_RESERVED49:
 884        case PERIPH_ID_RESERVED53:
 885        case PERIPH_ID_RESERVED64:
 886        case PERIPH_ID_RESERVED84:
 887        case PERIPH_ID_RESERVED85:
 888        case PERIPH_ID_RESERVED86:
 889        case PERIPH_ID_RESERVED88:
 890        case PERIPH_ID_RESERVED90:
 891        case PERIPH_ID_RESERVED92:
 892        case PERIPH_ID_RESERVED93:
 893        case PERIPH_ID_RESERVED94:
 894        case PERIPH_ID_V_RESERVED2:
 895        case PERIPH_ID_V_RESERVED4:
 896        case PERIPH_ID_V_RESERVED17:
 897        case PERIPH_ID_V_RESERVED18:
 898        case PERIPH_ID_V_RESERVED19:
 899        case PERIPH_ID_V_RESERVED20:
 900        case PERIPH_ID_V_RESERVED21:
 901        case PERIPH_ID_V_RESERVED22:
 902        case PERIPH_ID_W_RESERVED2:
 903        case PERIPH_ID_W_RESERVED3:
 904        case PERIPH_ID_W_RESERVED4:
 905        case PERIPH_ID_W_RESERVED5:
 906        case PERIPH_ID_W_RESERVED6:
 907        case PERIPH_ID_W_RESERVED7:
 908        case PERIPH_ID_W_RESERVED9:
 909        case PERIPH_ID_W_RESERVED10:
 910        case PERIPH_ID_W_RESERVED11:
 911        case PERIPH_ID_W_RESERVED12:
 912        case PERIPH_ID_W_RESERVED13:
 913        case PERIPH_ID_W_RESERVED15:
 914        case PERIPH_ID_W_RESERVED16:
 915        case PERIPH_ID_W_RESERVED17:
 916        case PERIPH_ID_W_RESERVED18:
 917        case PERIPH_ID_W_RESERVED19:
 918        case PERIPH_ID_W_RESERVED20:
 919        case PERIPH_ID_W_RESERVED23:
 920        case PERIPH_ID_W_RESERVED29:
 921        case PERIPH_ID_W_RESERVED30:
 922        case PERIPH_ID_W_RESERVED31:
 923                return PERIPH_ID_NONE;
 924        default:
 925                return clk_id;
 926        }
 927}
 928#endif /* CONFIG_OF_CONTROL */
 929
 930/*
 931 * T210 redefines PLLP_OUT2 as PLLP_VCO/DIVP, so do different OUT1-4 setup here.
 932 * PLLP_BASE/MISC/etc. is already set up for 408MHz in the BootROM.
 933 */
 934void tegra210_setup_pllp(void)
 935{
 936        struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 937        u32 reg;
 938
 939        /* Set PLLP_OUT1, 3 & 4 freqs to 9.6, 102 & 204MHz */
 940
 941        /* OUT1 */
 942        /* Assert RSTN before enable */
 943        reg = PLLP_OUT1_RSTN_EN;
 944        writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]);
 945        /* Set divisor and reenable */
 946        reg = (IN_408_OUT_9_6_DIVISOR << PLLP_OUT1_RATIO)
 947                | PLLP_OUT1_OVR | PLLP_OUT1_CLKEN | PLLP_OUT1_RSTN_DIS;
 948        writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[0]);
 949
 950        /* OUT3, 4 */
 951        /* Assert RSTN before enable */
 952        reg = PLLP_OUT4_RSTN_EN | PLLP_OUT3_RSTN_EN;
 953        writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]);
 954        /* Set divisor and reenable */
 955        reg = (IN_408_OUT_204_DIVISOR << PLLP_OUT4_RATIO)
 956                | PLLP_OUT4_OVR | PLLP_OUT4_CLKEN | PLLP_OUT4_RSTN_DIS
 957                | (IN_408_OUT_102_DIVISOR << PLLP_OUT3_RATIO)
 958                | PLLP_OUT3_OVR | PLLP_OUT3_CLKEN | PLLP_OUT3_RSTN_DIS;
 959        writel(reg, &clkrst->crc_pll[CLOCK_ID_PERIPH].pll_out[1]);
 960
 961        /*
 962         * NOTE: If you want to change PLLP_OUT2 away from 204MHz,
 963         * you can change PLLP_BASE DIVP here. Currently defaults
 964         * to 1, which is 2^1, or 2, so PLLP_OUT2 is 204MHz.
 965         * See Table 13 in section 5.1.4 in T210 TRM for more info.
 966         */
 967}
 968
 969void clock_early_init(void)
 970{
 971        struct clk_rst_ctlr *clkrst =
 972                (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
 973        struct clk_pll_info *pllinfo = &tegra_pll_info_table[CLOCK_ID_DISPLAY];
 974        u32 data;
 975
 976        tegra210_setup_pllp();
 977
 978        /*
 979         * PLLC output frequency set to 600Mhz
 980         * PLLD output frequency set to 925Mhz
 981         */
 982        switch (clock_get_osc_freq()) {
 983        case CLOCK_OSC_FREQ_12_0: /* OSC is 12Mhz */
 984                clock_set_rate(CLOCK_ID_CGENERAL, 600, 12, 0, 8);
 985                clock_set_rate(CLOCK_ID_DISPLAY, 925, 12, 0, 12);
 986                break;
 987
 988        case CLOCK_OSC_FREQ_26_0: /* OSC is 26Mhz */
 989                clock_set_rate(CLOCK_ID_CGENERAL, 600, 26, 0, 8);
 990                clock_set_rate(CLOCK_ID_DISPLAY, 925, 26, 0, 12);
 991                break;
 992
 993        case CLOCK_OSC_FREQ_13_0: /* OSC is 13Mhz */
 994                clock_set_rate(CLOCK_ID_CGENERAL, 600, 13, 0, 8);
 995                clock_set_rate(CLOCK_ID_DISPLAY, 925, 13, 0, 12);
 996                break;
 997        case CLOCK_OSC_FREQ_19_2:
 998                clock_set_rate(CLOCK_ID_CGENERAL, 125, 4, 0, 0);
 999                clock_set_rate(CLOCK_ID_DISPLAY, 96, 2, 0, 12);
1000                break;
1001        case CLOCK_OSC_FREQ_38_4:
1002                clock_set_rate(CLOCK_ID_CGENERAL, 125, 8, 0, 0);
1003                clock_set_rate(CLOCK_ID_DISPLAY, 96, 4, 0, 0);
1004                break;
1005        default:
1006                /*
1007                 * These are not supported. It is too early to print a
1008                 * message and the UART likely won't work anyway due to the
1009                 * oscillator being wrong.
1010                 */
1011                break;
1012        }
1013
1014        /* PLLC_MISC1: Turn IDDQ off. NOTE: T210 PLLC_MISC_1 maps to pll_misc */
1015        clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_misc,
1016                     (1 << PLLC_IDDQ));
1017        udelay(2);
1018
1019        /*
1020         * PLLC_MISC: Take PLLC out of reset. NOTE: T210 PLLC_MISC maps
1021         * to pll_out[1]
1022         */
1023        clrbits_le32(&clkrst->crc_pll[CLOCK_ID_CGENERAL].pll_out[1],
1024                     (1 << PLLC_RESET));
1025        udelay(2);
1026
1027        /* PLLD_MISC: Set CLKENABLE and LOCK_DETECT bits */
1028        data = (1 << PLLD_ENABLE_CLK) | (1 << pllinfo->lock_ena);
1029        writel(data, &clkrst->crc_pll[CLOCK_ID_DISPLAY].pll_misc);
1030        udelay(2);
1031}
1032
1033unsigned int clk_m_get_rate(unsigned parent_rate)
1034{
1035        struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
1036        u32 value, div;
1037
1038        value = readl(&clkrst->crc_spare_reg0);
1039        div = ((value >> 2) & 0x3) + 1;
1040
1041        return parent_rate / div;
1042}
1043
1044void arch_timer_init(void)
1045{
1046        struct sysctr_ctlr *sysctr = (struct sysctr_ctlr *)NV_PA_TSC_BASE;
1047        u32 freq, val;
1048
1049        freq = clock_get_rate(CLOCK_ID_CLK_M);
1050        debug("%s: clk_m freq is %dHz [0x%08X]\n", __func__, freq, freq);
1051
1052        if (current_el() == 3)
1053                asm("msr cntfrq_el0, %0\n" : : "r" (freq));
1054
1055        /* Only Tegra114+ has the System Counter regs */
1056        debug("%s: setting CNTFID0 to 0x%08X\n", __func__, freq);
1057        writel(freq, &sysctr->cntfid0);
1058
1059        val = readl(&sysctr->cntcr);
1060        val |= TSC_CNTCR_ENABLE | TSC_CNTCR_HDBG;
1061        writel(val, &sysctr->cntcr);
1062        debug("%s: TSC CNTCR = 0x%08X\n", __func__, val);
1063}
1064
1065#define PLLREFE_MISC                    0x4c8
1066#define  PLLREFE_MISC_LOCK              BIT(27)
1067#define  PLLREFE_MISC_IDDQ              BIT(24)
1068
1069#define PLLREFE_BASE                    0x4c4
1070#define  PLLREFE_BASE_BYPASS            BIT(31)
1071#define  PLLREFE_BASE_ENABLE            BIT(30)
1072#define  PLLREFE_BASE_REF_DIS           BIT(29)
1073#define  PLLREFE_BASE_KCP(kcp)          (((kcp) & 0x3) << 27)
1074#define  PLLREFE_BASE_KVCO              BIT(26)
1075#define  PLLREFE_BASE_DIVP(p)           (((p) & 0x1f) << 16)
1076#define  PLLREFE_BASE_DIVN(n)           (((n) & 0xff) << 8)
1077#define  PLLREFE_BASE_DIVM(m)           (((m) & 0xff) << 0)
1078
1079static int tegra_pllref_enable(void)
1080{
1081        u32 value;
1082        unsigned long start;
1083
1084        /*
1085         * This sequence comes from Tegra X1 TRM section "Cold Boot, with no
1086         * Recovery Mode or Boot from USB", sub-section "PLLREFE".
1087         */
1088
1089        value = readl(NV_PA_CLK_RST_BASE + PLLREFE_MISC);
1090        value &= ~PLLREFE_MISC_IDDQ;
1091        writel(value, NV_PA_CLK_RST_BASE + PLLREFE_MISC);
1092
1093        udelay(5);
1094
1095        value = PLLREFE_BASE_ENABLE |
1096                PLLREFE_BASE_KCP(0) |
1097                PLLREFE_BASE_DIVP(0) |
1098                PLLREFE_BASE_DIVN(0x41) |
1099                PLLREFE_BASE_DIVM(4);
1100        writel(value, NV_PA_CLK_RST_BASE + PLLREFE_BASE);
1101
1102        debug("waiting for pllrefe lock\n");
1103        start = get_timer(0);
1104        while (get_timer(start) < 250) {
1105                value = readl(NV_PA_CLK_RST_BASE + PLLREFE_MISC);
1106                if (value & PLLREFE_MISC_LOCK)
1107                        break;
1108        }
1109        if (!(value & PLLREFE_MISC_LOCK)) {
1110                debug("  timeout\n");
1111                return -ETIMEDOUT;
1112        }
1113        debug("  done\n");
1114
1115        return 0;
1116}
1117
1118#define PLLE_SS_CNTL 0x68
1119#define  PLLE_SS_CNTL_SSCINCINTR(x) (((x) & 0x3f) << 24)
1120#define  PLLE_SS_CNTL_SSCINC(x) (((x) & 0xff) << 16)
1121#define  PLLE_SS_CNTL_SSCINVERT (1 << 15)
1122#define  PLLE_SS_CNTL_SSCCENTER (1 << 14)
1123#define  PLLE_SS_CNTL_SSCBYP (1 << 12)
1124#define  PLLE_SS_CNTL_INTERP_RESET (1 << 11)
1125#define  PLLE_SS_CNTL_BYPASS_SS (1 << 10)
1126#define  PLLE_SS_CNTL_SSCMAX(x) (((x) & 0x1ff) << 0)
1127
1128#define PLLE_BASE 0x0e8
1129#define  PLLE_BASE_ENABLE (1 << 31)
1130#define  PLLE_BASE_PLDIV_CML(x) (((x) & 0x1f) << 24)
1131#define  PLLE_BASE_NDIV(x) (((x) & 0xff) << 8)
1132#define  PLLE_BASE_MDIV(x) (((x) & 0xff) << 0)
1133
1134#define PLLE_MISC 0x0ec
1135#define  PLLE_MISC_IDDQ_SWCTL (1 << 14)
1136#define  PLLE_MISC_IDDQ_OVERRIDE_VALUE (1 << 13)
1137#define  PLLE_MISC_LOCK (1 << 11)
1138#define  PLLE_PTS (1 << 8)
1139#define  PLLE_MISC_KCP(x) (((x) & 0x3) << 6)
1140#define  PLLE_MISC_VREG_CTRL(x) (((x) & 0x3) << 2)
1141#define  PLLE_MISC_KVCO (1 << 0)
1142
1143#define PLLE_AUX 0x48c
1144#define  PLLE_AUX_SS_SEQ_INCLUDE (1 << 31)
1145#define  PLLE_AUX_REF_SEL_PLLREFE (1 << 28)
1146#define  PLLE_AUX_SEQ_ENABLE (1 << 24)
1147#define  PLLE_AUX_SS_SWCTL (1 << 6)
1148#define  PLLE_AUX_ENABLE_SWCTL (1 << 4)
1149#define  PLLE_AUX_USE_LOCKDET (1 << 3)
1150
1151int tegra_plle_enable(void)
1152{
1153        u32 value;
1154        unsigned long start;
1155
1156        /* PLLREF feeds PLLE */
1157        tegra_pllref_enable();
1158
1159        /*
1160         * This sequence comes from Tegra X1 TRM section "Cold Boot, with no
1161         * Recovery Mode or Boot from USB", sub-section "PLLEs".
1162         */
1163
1164        /* 1. Select XTAL as the source */
1165
1166        value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX);
1167        value &= ~PLLE_AUX_REF_SEL_PLLREFE;
1168        writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX);
1169
1170        value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
1171        value &= ~PLLE_MISC_IDDQ_OVERRIDE_VALUE;
1172        writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
1173
1174        /* 2. Wait 5 us */
1175        udelay(5);
1176
1177        /*
1178         * 3. Program the following registers to generate a low jitter 100MHz
1179         * clock.
1180         */
1181
1182        value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
1183        value &= ~PLLE_BASE_PLDIV_CML(0x1f);
1184        value &= ~PLLE_BASE_NDIV(0xff);
1185        value &= ~PLLE_BASE_MDIV(0xff);
1186        value |= PLLE_BASE_PLDIV_CML(0xe);
1187        value |= PLLE_BASE_NDIV(0x7d);
1188        value |= PLLE_BASE_MDIV(2);
1189        writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
1190
1191        value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
1192        value |= PLLE_PTS;
1193        value &= ~PLLE_MISC_KCP(3);
1194        value &= ~PLLE_MISC_VREG_CTRL(3);
1195        value &= ~PLLE_MISC_KVCO;
1196        writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
1197
1198        value = readl(NV_PA_CLK_RST_BASE + PLLE_BASE);
1199        value |= PLLE_BASE_ENABLE;
1200        writel(value, NV_PA_CLK_RST_BASE + PLLE_BASE);
1201
1202        /* 4. Wait for LOCK */
1203
1204        debug("waiting for plle lock\n");
1205        start = get_timer(0);
1206        while (get_timer(start) < 250) {
1207                value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
1208                if (value & PLLE_MISC_LOCK)
1209                        break;
1210        }
1211        if (!(value & PLLE_MISC_LOCK)) {
1212                debug("  timeout\n");
1213                return -ETIMEDOUT;
1214        }
1215        debug("  done\n");
1216
1217        /* 5. Enable SSA */
1218
1219        value = readl(NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1220        value &= ~PLLE_SS_CNTL_SSCINC(0xff);
1221        value |= PLLE_SS_CNTL_SSCINC(1);
1222        value &= ~PLLE_SS_CNTL_SSCINCINTR(0x3f);
1223        value |= PLLE_SS_CNTL_SSCINCINTR(0x23);
1224        value &= ~PLLE_SS_CNTL_SSCMAX(0x1fff);
1225        value |= PLLE_SS_CNTL_SSCMAX(0x21);
1226        value &= ~PLLE_SS_CNTL_SSCINVERT;
1227        value &= ~PLLE_SS_CNTL_SSCCENTER;
1228        value &= ~PLLE_SS_CNTL_BYPASS_SS;
1229        value &= ~PLLE_SS_CNTL_SSCBYP;
1230        writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1231
1232        /* 6. Wait 300 ns */
1233
1234        udelay(1);
1235        value &= ~PLLE_SS_CNTL_INTERP_RESET;
1236        writel(value, NV_PA_CLK_RST_BASE + PLLE_SS_CNTL);
1237
1238        /* 7. Enable HW power sequencer for PLLE */
1239
1240        value = readl(NV_PA_CLK_RST_BASE + PLLE_MISC);
1241        value &= ~PLLE_MISC_IDDQ_SWCTL;
1242        writel(value, NV_PA_CLK_RST_BASE + PLLE_MISC);
1243
1244        value = readl(NV_PA_CLK_RST_BASE + PLLE_AUX);
1245        value &= ~PLLE_AUX_SS_SWCTL;
1246        value &= ~PLLE_AUX_ENABLE_SWCTL;
1247        value |= PLLE_AUX_SS_SEQ_INCLUDE;
1248        value |= PLLE_AUX_USE_LOCKDET;
1249        writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX);
1250
1251        /* 8. Wait 1 us */
1252
1253        udelay(1);
1254        value |= PLLE_AUX_SEQ_ENABLE;
1255        writel(value, NV_PA_CLK_RST_BASE + PLLE_AUX);
1256
1257        return 0;
1258}
1259
1260struct periph_clk_init periph_clk_init_table[] = {
1261        { PERIPH_ID_SBC1, CLOCK_ID_PERIPH },
1262        { PERIPH_ID_SBC2, CLOCK_ID_PERIPH },
1263        { PERIPH_ID_SBC3, CLOCK_ID_PERIPH },
1264        { PERIPH_ID_SBC4, CLOCK_ID_PERIPH },
1265        { PERIPH_ID_SBC5, CLOCK_ID_PERIPH },
1266        { PERIPH_ID_SBC6, CLOCK_ID_PERIPH },
1267        { PERIPH_ID_HOST1X, CLOCK_ID_PERIPH },
1268        { PERIPH_ID_SDMMC1, CLOCK_ID_PERIPH },
1269        { PERIPH_ID_SDMMC2, CLOCK_ID_PERIPH },
1270        { PERIPH_ID_SDMMC3, CLOCK_ID_PERIPH },
1271        { PERIPH_ID_SDMMC4, CLOCK_ID_PERIPH },
1272        { PERIPH_ID_PWM, CLOCK_ID_SFROM32KHZ },
1273        { PERIPH_ID_I2C1, CLOCK_ID_PERIPH },
1274        { PERIPH_ID_I2C2, CLOCK_ID_PERIPH },
1275        { PERIPH_ID_I2C3, CLOCK_ID_PERIPH },
1276        { PERIPH_ID_I2C4, CLOCK_ID_PERIPH },
1277        { PERIPH_ID_I2C5, CLOCK_ID_PERIPH },
1278        { PERIPH_ID_I2C6, CLOCK_ID_PERIPH },
1279        { -1, },
1280};
1281