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 */ 473