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

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