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 /* additional pins on MMP2 */ 320 MFP_PIN_TWSI1_SCL, 321 MFP_PIN_TWSI1_SDA, 322 MFP_PIN_TWSI4_SCL, 323 MFP_PIN_TWSI4_SDA, 324 MFP_PIN_CLK_REQ, 325 326 MFP_PIN_MAX, 327 }; 328 329 /* 330 * a possible MFP configuration is represented by a 32-bit integer 331 * 332 * bit 0.. 9 - MFP Pin Number (1024 Pins Maximum) 333 * bit 10..12 - Alternate Function Selection 334 * bit 13..15 - Drive Strength 335 * bit 16..18 - Low Power Mode State 336 * bit 19..20 - Low Power Mode Edge Detection 337 * bit 21..22 - Run Mode Pull State 338 * 339 * to facilitate the definition, the following macros are provided 340 * 341 * MFP_CFG_DEFAULT - default MFP configuration value, with 342 * alternate function = 0, 343 * drive strength = fast 3mA (MFP_DS03X) 344 * low power mode = default 345 * edge detection = none 346 * 347 * MFP_CFG - default MFPR value with alternate function 348 * MFP_CFG_DRV - default MFPR value with alternate function and 349 * pin drive strength 350 * MFP_CFG_LPM - default MFPR value with alternate function and 351 * low power mode 352 * MFP_CFG_X - default MFPR value with alternate function, 353 * pin drive strength and low power mode 354 */ 355 356 typedef unsigned long mfp_cfg_t; 357 358 #define MFP_PIN(x) ((x) & 0x3ff) 359 360 #define MFP_AF0 (0x0 << 10) 361 #define MFP_AF1 (0x1 << 10) 362 #define MFP_AF2 (0x2 << 10) 363 #define MFP_AF3 (0x3 << 10) 364 #define MFP_AF4 (0x4 << 10) 365 #define MFP_AF5 (0x5 << 10) 366 #define MFP_AF6 (0x6 << 10) 367 #define MFP_AF7 (0x7 << 10) 368 #define MFP_AF_MASK (0x7 << 10) 369 #define MFP_AF(x) (((x) >> 10) & 0x7) 370 371 #define MFP_DS01X (0x0 << 13) 372 #define MFP_DS02X (0x1 << 13) 373 #define MFP_DS03X (0x2 << 13) 374 #define MFP_DS04X (0x3 << 13) 375 #define MFP_DS06X (0x4 << 13) 376 #define MFP_DS08X (0x5 << 13) 377 #define MFP_DS10X (0x6 << 13) 378 #define MFP_DS13X (0x7 << 13) 379 #define MFP_DS_MASK (0x7 << 13) 380 #define MFP_DS(x) (((x) >> 13) & 0x7) 381 382 #define MFP_LPM_DEFAULT (0x0 << 16) 383 #define MFP_LPM_DRIVE_LOW (0x1 << 16) 384 #define MFP_LPM_DRIVE_HIGH (0x2 << 16) 385 #define MFP_LPM_PULL_LOW (0x3 << 16) 386 #define MFP_LPM_PULL_HIGH (0x4 << 16) 387 #define MFP_LPM_FLOAT (0x5 << 16) 388 #define MFP_LPM_INPUT (0x6 << 16) 389 #define MFP_LPM_STATE_MASK (0x7 << 16) 390 #define MFP_LPM_STATE(x) (((x) >> 16) & 0x7) 391 392 #define MFP_LPM_EDGE_NONE (0x0 << 19) 393 #define MFP_LPM_EDGE_RISE (0x1 << 19) 394 #define MFP_LPM_EDGE_FALL (0x2 << 19) 395 #define MFP_LPM_EDGE_BOTH (0x3 << 19) 396 #define MFP_LPM_EDGE_MASK (0x3 << 19) 397 #define MFP_LPM_EDGE(x) (((x) >> 19) & 0x3) 398 399 #define MFP_PULL_NONE (0x0 << 21) 400 #define MFP_PULL_LOW (0x1 << 21) 401 #define MFP_PULL_HIGH (0x2 << 21) 402 #define MFP_PULL_BOTH (0x3 << 21) 403 #define MFP_PULL_FLOAT (0x4 << 21) 404 #define MFP_PULL_MASK (0x7 << 21) 405 #define MFP_PULL(x) (((x) >> 21) & 0x7) 406 407 #define MFP_CFG_DEFAULT (MFP_AF0 | MFP_DS03X | MFP_LPM_DEFAULT |\ 408 MFP_LPM_EDGE_NONE | MFP_PULL_NONE) 409 410 #define MFP_CFG(pin, af) \ 411 ((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\ 412 (MFP_PIN(MFP_PIN_##pin) | MFP_##af)) 413 414 #define MFP_CFG_DRV(pin, af, drv) \ 415 ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\ 416 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv)) 417 418 #define MFP_CFG_LPM(pin, af, lpm) \ 419 ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\ 420 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm)) 421 422 #define MFP_CFG_X(pin, af, drv, lpm) \ 423 ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\ 424 (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm)) 425 426 #if defined(CONFIG_PXA3xx) || defined(CONFIG_PXA95x) || defined(CONFIG_ARCH_MMP) 427 /* 428 * each MFP pin will have a MFPR register, since the offset of the 429 * register varies between processors, the processor specific code 430 * should initialize the pin offsets by mfp_init() 431 * 432 * mfp_init_base() - accepts a virtual base for all MFPR registers and 433 * initialize the MFP table to a default state 434 * 435 * mfp_init_addr() - accepts a table of "mfp_addr_map" structure, which 436 * represents a range of MFP pins from "start" to "end", with the offset 437 * beginning at "offset", to define a single pin, let "end" = -1. 438 * 439 * use 440 * 441 * MFP_ADDR_X() to define a range of pins 442 * MFP_ADDR() to define a single pin 443 * MFP_ADDR_END to signal the end of pin offset definitions 444 */ 445 struct mfp_addr_map { 446 unsigned int start; 447 unsigned int end; 448 unsigned long offset; 449 }; 450 451 #define MFP_ADDR_X(start, end, offset) \ 452 { MFP_PIN_##start, MFP_PIN_##end, offset } 453 454 #define MFP_ADDR(pin, offset) \ 455 { MFP_PIN_##pin, -1, offset } 456 457 #define MFP_ADDR_END { MFP_PIN_INVALID, 0 } 458 459 void __init mfp_init_base(unsigned long mfpr_base); 460 void __init mfp_init_addr(struct mfp_addr_map *map); 461 462 /* 463 * mfp_{read, write}() - for direct read/write access to the MFPR register 464 * mfp_config() - for configuring a group of MFPR registers 465 * mfp_config_lpm() - configuring all low power MFPR registers for suspend 466 * mfp_config_run() - configuring all run time MFPR registers after resume 467 */ 468 unsigned long mfp_read(int mfp); 469 void mfp_write(int mfp, unsigned long mfpr_val); 470 void mfp_config(unsigned long *mfp_cfgs, int num); 471 void mfp_config_run(void); 472 void mfp_config_lpm(void); 473 #endif /* CONFIG_PXA3xx || CONFIG_PXA95x || CONFIG_ARCH_MMP */ 474 475 #endif /* __ASM_PLAT_MFP_H */ 476