root/arch/arm/plat-pxa/include/plat/mfp.h

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   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * arch/arm/plat-pxa/include/plat/mfp.h
   4  *
   5  *   Common Multi-Function Pin Definitions
   6  *
   7  * Copyright (C) 2007 Marvell International Ltd.
   8  *
   9  * 2007-8-21: eric miao <eric.miao@marvell.com>
  10  *            initial version
  11  */
  12 
  13 #ifndef __ASM_PLAT_MFP_H
  14 #define __ASM_PLAT_MFP_H
  15 
  16 #define mfp_to_gpio(m)  ((m) % 256)
  17 
  18 /* list of all the configurable MFP pins */
  19 enum {
  20         MFP_PIN_INVALID = -1,
  21 
  22         MFP_PIN_GPIO0 = 0,
  23         MFP_PIN_GPIO1,
  24         MFP_PIN_GPIO2,
  25         MFP_PIN_GPIO3,
  26         MFP_PIN_GPIO4,
  27         MFP_PIN_GPIO5,
  28         MFP_PIN_GPIO6,
  29         MFP_PIN_GPIO7,
  30         MFP_PIN_GPIO8,
  31         MFP_PIN_GPIO9,
  32         MFP_PIN_GPIO10,
  33         MFP_PIN_GPIO11,
  34         MFP_PIN_GPIO12,
  35         MFP_PIN_GPIO13,
  36         MFP_PIN_GPIO14,
  37         MFP_PIN_GPIO15,
  38         MFP_PIN_GPIO16,
  39         MFP_PIN_GPIO17,
  40         MFP_PIN_GPIO18,
  41         MFP_PIN_GPIO19,
  42         MFP_PIN_GPIO20,
  43         MFP_PIN_GPIO21,
  44         MFP_PIN_GPIO22,
  45         MFP_PIN_GPIO23,
  46         MFP_PIN_GPIO24,
  47         MFP_PIN_GPIO25,
  48         MFP_PIN_GPIO26,
  49         MFP_PIN_GPIO27,
  50         MFP_PIN_GPIO28,
  51         MFP_PIN_GPIO29,
  52         MFP_PIN_GPIO30,
  53         MFP_PIN_GPIO31,
  54         MFP_PIN_GPIO32,
  55         MFP_PIN_GPIO33,
  56         MFP_PIN_GPIO34,
  57         MFP_PIN_GPIO35,
  58         MFP_PIN_GPIO36,
  59         MFP_PIN_GPIO37,
  60         MFP_PIN_GPIO38,
  61         MFP_PIN_GPIO39,
  62         MFP_PIN_GPIO40,
  63         MFP_PIN_GPIO41,
  64         MFP_PIN_GPIO42,
  65         MFP_PIN_GPIO43,
  66         MFP_PIN_GPIO44,
  67         MFP_PIN_GPIO45,
  68         MFP_PIN_GPIO46,
  69         MFP_PIN_GPIO47,
  70         MFP_PIN_GPIO48,
  71         MFP_PIN_GPIO49,
  72         MFP_PIN_GPIO50,
  73         MFP_PIN_GPIO51,
  74         MFP_PIN_GPIO52,
  75         MFP_PIN_GPIO53,
  76         MFP_PIN_GPIO54,
  77         MFP_PIN_GPIO55,
  78         MFP_PIN_GPIO56,
  79         MFP_PIN_GPIO57,
  80         MFP_PIN_GPIO58,
  81         MFP_PIN_GPIO59,
  82         MFP_PIN_GPIO60,
  83         MFP_PIN_GPIO61,
  84         MFP_PIN_GPIO62,
  85         MFP_PIN_GPIO63,
  86         MFP_PIN_GPIO64,
  87         MFP_PIN_GPIO65,
  88         MFP_PIN_GPIO66,
  89         MFP_PIN_GPIO67,
  90         MFP_PIN_GPIO68,
  91         MFP_PIN_GPIO69,
  92         MFP_PIN_GPIO70,
  93         MFP_PIN_GPIO71,
  94         MFP_PIN_GPIO72,
  95         MFP_PIN_GPIO73,
  96         MFP_PIN_GPIO74,
  97         MFP_PIN_GPIO75,
  98         MFP_PIN_GPIO76,
  99         MFP_PIN_GPIO77,
 100         MFP_PIN_GPIO78,
 101         MFP_PIN_GPIO79,
 102         MFP_PIN_GPIO80,
 103         MFP_PIN_GPIO81,
 104         MFP_PIN_GPIO82,
 105         MFP_PIN_GPIO83,
 106         MFP_PIN_GPIO84,
 107         MFP_PIN_GPIO85,
 108         MFP_PIN_GPIO86,
 109         MFP_PIN_GPIO87,
 110         MFP_PIN_GPIO88,
 111         MFP_PIN_GPIO89,
 112         MFP_PIN_GPIO90,
 113         MFP_PIN_GPIO91,
 114         MFP_PIN_GPIO92,
 115         MFP_PIN_GPIO93,
 116         MFP_PIN_GPIO94,
 117         MFP_PIN_GPIO95,
 118         MFP_PIN_GPIO96,
 119         MFP_PIN_GPIO97,
 120         MFP_PIN_GPIO98,
 121         MFP_PIN_GPIO99,
 122         MFP_PIN_GPIO100,
 123         MFP_PIN_GPIO101,
 124         MFP_PIN_GPIO102,
 125         MFP_PIN_GPIO103,
 126         MFP_PIN_GPIO104,
 127         MFP_PIN_GPIO105,
 128         MFP_PIN_GPIO106,
 129         MFP_PIN_GPIO107,
 130         MFP_PIN_GPIO108,
 131         MFP_PIN_GPIO109,
 132         MFP_PIN_GPIO110,
 133         MFP_PIN_GPIO111,
 134         MFP_PIN_GPIO112,
 135         MFP_PIN_GPIO113,
 136         MFP_PIN_GPIO114,
 137         MFP_PIN_GPIO115,
 138         MFP_PIN_GPIO116,
 139         MFP_PIN_GPIO117,
 140         MFP_PIN_GPIO118,
 141         MFP_PIN_GPIO119,
 142         MFP_PIN_GPIO120,
 143         MFP_PIN_GPIO121,
 144         MFP_PIN_GPIO122,
 145         MFP_PIN_GPIO123,
 146         MFP_PIN_GPIO124,
 147         MFP_PIN_GPIO125,
 148         MFP_PIN_GPIO126,
 149         MFP_PIN_GPIO127,
 150 
 151         MFP_PIN_GPIO128,
 152         MFP_PIN_GPIO129,
 153         MFP_PIN_GPIO130,
 154         MFP_PIN_GPIO131,
 155         MFP_PIN_GPIO132,
 156         MFP_PIN_GPIO133,
 157         MFP_PIN_GPIO134,
 158         MFP_PIN_GPIO135,
 159         MFP_PIN_GPIO136,
 160         MFP_PIN_GPIO137,
 161         MFP_PIN_GPIO138,
 162         MFP_PIN_GPIO139,
 163         MFP_PIN_GPIO140,
 164         MFP_PIN_GPIO141,
 165         MFP_PIN_GPIO142,
 166         MFP_PIN_GPIO143,
 167         MFP_PIN_GPIO144,
 168         MFP_PIN_GPIO145,
 169         MFP_PIN_GPIO146,
 170         MFP_PIN_GPIO147,
 171         MFP_PIN_GPIO148,
 172         MFP_PIN_GPIO149,
 173         MFP_PIN_GPIO150,
 174         MFP_PIN_GPIO151,
 175         MFP_PIN_GPIO152,
 176         MFP_PIN_GPIO153,
 177         MFP_PIN_GPIO154,
 178         MFP_PIN_GPIO155,
 179         MFP_PIN_GPIO156,
 180         MFP_PIN_GPIO157,
 181         MFP_PIN_GPIO158,
 182         MFP_PIN_GPIO159,
 183         MFP_PIN_GPIO160,
 184         MFP_PIN_GPIO161,
 185         MFP_PIN_GPIO162,
 186         MFP_PIN_GPIO163,
 187         MFP_PIN_GPIO164,
 188         MFP_PIN_GPIO165,
 189         MFP_PIN_GPIO166,
 190         MFP_PIN_GPIO167,
 191         MFP_PIN_GPIO168,
 192         MFP_PIN_GPIO169,
 193         MFP_PIN_GPIO170,
 194         MFP_PIN_GPIO171,
 195         MFP_PIN_GPIO172,
 196         MFP_PIN_GPIO173,
 197         MFP_PIN_GPIO174,
 198         MFP_PIN_GPIO175,
 199         MFP_PIN_GPIO176,
 200         MFP_PIN_GPIO177,
 201         MFP_PIN_GPIO178,
 202         MFP_PIN_GPIO179,
 203         MFP_PIN_GPIO180,
 204         MFP_PIN_GPIO181,
 205         MFP_PIN_GPIO182,
 206         MFP_PIN_GPIO183,
 207         MFP_PIN_GPIO184,
 208         MFP_PIN_GPIO185,
 209         MFP_PIN_GPIO186,
 210         MFP_PIN_GPIO187,
 211         MFP_PIN_GPIO188,
 212         MFP_PIN_GPIO189,
 213         MFP_PIN_GPIO190,
 214         MFP_PIN_GPIO191,
 215 
 216         MFP_PIN_GPIO255 = 255,
 217 
 218         MFP_PIN_GPIO0_2,
 219         MFP_PIN_GPIO1_2,
 220         MFP_PIN_GPIO2_2,
 221         MFP_PIN_GPIO3_2,
 222         MFP_PIN_GPIO4_2,
 223         MFP_PIN_GPIO5_2,
 224         MFP_PIN_GPIO6_2,
 225         MFP_PIN_GPIO7_2,
 226         MFP_PIN_GPIO8_2,
 227         MFP_PIN_GPIO9_2,
 228         MFP_PIN_GPIO10_2,
 229         MFP_PIN_GPIO11_2,
 230         MFP_PIN_GPIO12_2,
 231         MFP_PIN_GPIO13_2,
 232         MFP_PIN_GPIO14_2,
 233         MFP_PIN_GPIO15_2,
 234         MFP_PIN_GPIO16_2,
 235         MFP_PIN_GPIO17_2,
 236 
 237         MFP_PIN_ULPI_STP,
 238         MFP_PIN_ULPI_NXT,
 239         MFP_PIN_ULPI_DIR,
 240 
 241         MFP_PIN_nXCVREN,
 242         MFP_PIN_DF_CLE_nOE,
 243         MFP_PIN_DF_nADV1_ALE,
 244         MFP_PIN_DF_SCLK_E,
 245         MFP_PIN_DF_SCLK_S,
 246         MFP_PIN_nBE0,
 247         MFP_PIN_nBE1,
 248         MFP_PIN_DF_nADV2_ALE,
 249         MFP_PIN_DF_INT_RnB,
 250         MFP_PIN_DF_nCS0,
 251         MFP_PIN_DF_nCS1,
 252         MFP_PIN_nLUA,
 253         MFP_PIN_nLLA,
 254         MFP_PIN_DF_nWE,
 255         MFP_PIN_DF_ALE_nWE,
 256         MFP_PIN_DF_nRE_nOE,
 257         MFP_PIN_DF_ADDR0,
 258         MFP_PIN_DF_ADDR1,
 259         MFP_PIN_DF_ADDR2,
 260         MFP_PIN_DF_ADDR3,
 261         MFP_PIN_DF_IO0,
 262         MFP_PIN_DF_IO1,
 263         MFP_PIN_DF_IO2,
 264         MFP_PIN_DF_IO3,
 265         MFP_PIN_DF_IO4,
 266         MFP_PIN_DF_IO5,
 267         MFP_PIN_DF_IO6,
 268         MFP_PIN_DF_IO7,
 269         MFP_PIN_DF_IO8,
 270         MFP_PIN_DF_IO9,
 271         MFP_PIN_DF_IO10,
 272         MFP_PIN_DF_IO11,
 273         MFP_PIN_DF_IO12,
 274         MFP_PIN_DF_IO13,
 275         MFP_PIN_DF_IO14,
 276         MFP_PIN_DF_IO15,
 277         MFP_PIN_DF_nCS0_SM_nCS2,
 278         MFP_PIN_DF_nCS1_SM_nCS3,
 279         MFP_PIN_SM_nCS0,
 280         MFP_PIN_SM_nCS1,
 281         MFP_PIN_DF_WEn,
 282         MFP_PIN_DF_REn,
 283         MFP_PIN_DF_CLE_SM_OEn,
 284         MFP_PIN_DF_ALE_SM_WEn,
 285         MFP_PIN_DF_RDY0,
 286         MFP_PIN_DF_RDY1,
 287 
 288         MFP_PIN_SM_SCLK,
 289         MFP_PIN_SM_BE0,
 290         MFP_PIN_SM_BE1,
 291         MFP_PIN_SM_ADV,
 292         MFP_PIN_SM_ADVMUX,
 293         MFP_PIN_SM_RDY,
 294 
 295         MFP_PIN_MMC1_DAT7,
 296         MFP_PIN_MMC1_DAT6,
 297         MFP_PIN_MMC1_DAT5,
 298         MFP_PIN_MMC1_DAT4,
 299         MFP_PIN_MMC1_DAT3,
 300         MFP_PIN_MMC1_DAT2,
 301         MFP_PIN_MMC1_DAT1,
 302         MFP_PIN_MMC1_DAT0,
 303         MFP_PIN_MMC1_CMD,
 304         MFP_PIN_MMC1_CLK,
 305         MFP_PIN_MMC1_CD,
 306         MFP_PIN_MMC1_WP,
 307 
 308         /* additional pins on PXA930 */
 309         MFP_PIN_GSIM_UIO,
 310         MFP_PIN_GSIM_UCLK,
 311         MFP_PIN_GSIM_UDET,
 312         MFP_PIN_GSIM_nURST,
 313         MFP_PIN_PMIC_INT,
 314         MFP_PIN_RDY,
 315 
 316         /* additional pins on MMP2 */
 317         MFP_PIN_TWSI1_SCL,
 318         MFP_PIN_TWSI1_SDA,
 319         MFP_PIN_TWSI4_SCL,
 320         MFP_PIN_TWSI4_SDA,
 321         MFP_PIN_CLK_REQ,
 322 
 323         MFP_PIN_MAX,
 324 };
 325 
 326 /*
 327  * a possible MFP configuration is represented by a 32-bit integer
 328  *
 329  * bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
 330  * bit 10..12 - Alternate Function Selection
 331  * bit 13..15 - Drive Strength
 332  * bit 16..18 - Low Power Mode State
 333  * bit 19..20 - Low Power Mode Edge Detection
 334  * bit 21..22 - Run Mode Pull State
 335  *
 336  * to facilitate the definition, the following macros are provided
 337  *
 338  * MFP_CFG_DEFAULT - default MFP configuration value, with
 339  *                alternate function = 0,
 340  *                drive strength = fast 3mA (MFP_DS03X)
 341  *                low power mode = default
 342  *                edge detection = none
 343  *
 344  * MFP_CFG      - default MFPR value with alternate function
 345  * MFP_CFG_DRV  - default MFPR value with alternate function and
 346  *                pin drive strength
 347  * MFP_CFG_LPM  - default MFPR value with alternate function and
 348  *                low power mode
 349  * MFP_CFG_X    - default MFPR value with alternate function,
 350  *                pin drive strength and low power mode
 351  */
 352 
 353 typedef unsigned long mfp_cfg_t;
 354 
 355 #define MFP_PIN(x)              ((x) & 0x3ff)
 356 
 357 #define MFP_AF0                 (0x0 << 10)
 358 #define MFP_AF1                 (0x1 << 10)
 359 #define MFP_AF2                 (0x2 << 10)
 360 #define MFP_AF3                 (0x3 << 10)
 361 #define MFP_AF4                 (0x4 << 10)
 362 #define MFP_AF5                 (0x5 << 10)
 363 #define MFP_AF6                 (0x6 << 10)
 364 #define MFP_AF7                 (0x7 << 10)
 365 #define MFP_AF_MASK             (0x7 << 10)
 366 #define MFP_AF(x)               (((x) >> 10) & 0x7)
 367 
 368 #define MFP_DS01X               (0x0 << 13)
 369 #define MFP_DS02X               (0x1 << 13)
 370 #define MFP_DS03X               (0x2 << 13)
 371 #define MFP_DS04X               (0x3 << 13)
 372 #define MFP_DS06X               (0x4 << 13)
 373 #define MFP_DS08X               (0x5 << 13)
 374 #define MFP_DS10X               (0x6 << 13)
 375 #define MFP_DS13X               (0x7 << 13)
 376 #define MFP_DS_MASK             (0x7 << 13)
 377 #define MFP_DS(x)               (((x) >> 13) & 0x7)
 378 
 379 #define MFP_LPM_DEFAULT         (0x0 << 16)
 380 #define MFP_LPM_DRIVE_LOW       (0x1 << 16)
 381 #define MFP_LPM_DRIVE_HIGH      (0x2 << 16)
 382 #define MFP_LPM_PULL_LOW        (0x3 << 16)
 383 #define MFP_LPM_PULL_HIGH       (0x4 << 16)
 384 #define MFP_LPM_FLOAT           (0x5 << 16)
 385 #define MFP_LPM_INPUT           (0x6 << 16)
 386 #define MFP_LPM_STATE_MASK      (0x7 << 16)
 387 #define MFP_LPM_STATE(x)        (((x) >> 16) & 0x7)
 388 
 389 #define MFP_LPM_EDGE_NONE       (0x0 << 19)
 390 #define MFP_LPM_EDGE_RISE       (0x1 << 19)
 391 #define MFP_LPM_EDGE_FALL       (0x2 << 19)
 392 #define MFP_LPM_EDGE_BOTH       (0x3 << 19)
 393 #define MFP_LPM_EDGE_MASK       (0x3 << 19)
 394 #define MFP_LPM_EDGE(x)         (((x) >> 19) & 0x3)
 395 
 396 #define MFP_PULL_NONE           (0x0 << 21)
 397 #define MFP_PULL_LOW            (0x1 << 21)
 398 #define MFP_PULL_HIGH           (0x2 << 21)
 399 #define MFP_PULL_BOTH           (0x3 << 21)
 400 #define MFP_PULL_FLOAT          (0x4 << 21)
 401 #define MFP_PULL_MASK           (0x7 << 21)
 402 #define MFP_PULL(x)             (((x) >> 21) & 0x7)
 403 
 404 #define MFP_CFG_DEFAULT         (MFP_AF0 | MFP_DS03X | MFP_LPM_DEFAULT |\
 405                                  MFP_LPM_EDGE_NONE | MFP_PULL_NONE)
 406 
 407 #define MFP_CFG(pin, af)                \
 408         ((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\
 409          (MFP_PIN(MFP_PIN_##pin) | MFP_##af))
 410 
 411 #define MFP_CFG_DRV(pin, af, drv)       \
 412         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\
 413          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv))
 414 
 415 #define MFP_CFG_LPM(pin, af, lpm)       \
 416         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\
 417          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm))
 418 
 419 #define MFP_CFG_X(pin, af, drv, lpm)    \
 420         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\
 421          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
 422 
 423 #if defined(CONFIG_PXA3xx) || defined(CONFIG_ARCH_MMP)
 424 /*
 425  * each MFP pin will have a MFPR register, since the offset of the
 426  * register varies between processors, the processor specific code
 427  * should initialize the pin offsets by mfp_init()
 428  *
 429  * mfp_init_base() - accepts a virtual base for all MFPR registers and
 430  * initialize the MFP table to a default state
 431  *
 432  * mfp_init_addr() - accepts a table of "mfp_addr_map" structure, which
 433  * represents a range of MFP pins from "start" to "end", with the offset
 434  * beginning at "offset", to define a single pin, let "end" = -1.
 435  *
 436  * use
 437  *
 438  * MFP_ADDR_X() to define a range of pins
 439  * MFP_ADDR()   to define a single pin
 440  * MFP_ADDR_END to signal the end of pin offset definitions
 441  */
 442 struct mfp_addr_map {
 443         unsigned int    start;
 444         unsigned int    end;
 445         unsigned long   offset;
 446 };
 447 
 448 #define MFP_ADDR_X(start, end, offset) \
 449         { MFP_PIN_##start, MFP_PIN_##end, offset }
 450 
 451 #define MFP_ADDR(pin, offset) \
 452         { MFP_PIN_##pin, -1, offset }
 453 
 454 #define MFP_ADDR_END    { MFP_PIN_INVALID, 0 }
 455 
 456 void __init mfp_init_base(void __iomem *mfpr_base);
 457 void __init mfp_init_addr(struct mfp_addr_map *map);
 458 
 459 /*
 460  * mfp_{read, write}()  - for direct read/write access to the MFPR register
 461  * mfp_config()         - for configuring a group of MFPR registers
 462  * mfp_config_lpm()     - configuring all low power MFPR registers for suspend
 463  * mfp_config_run()     - configuring all run time  MFPR registers after resume
 464  */
 465 unsigned long mfp_read(int mfp);
 466 void mfp_write(int mfp, unsigned long mfpr_val);
 467 void mfp_config(unsigned long *mfp_cfgs, int num);
 468 void mfp_config_run(void);
 469 void mfp_config_lpm(void);
 470 #endif /* CONFIG_PXA3xx || CONFIG_ARCH_MMP */
 471 
 472 #endif /* __ASM_PLAT_MFP_H */
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