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

   1 /*
   2  * linux/include/asm-arm/arch-pxa/mfp.h
   3  *
   4  * 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_ARCH_MFP_H
  17 #define __ASM_ARCH_MFP_H
  18
  19 #define mfp_to_gpio(m)  ((m) % 128)
  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         MFP_PIN_GPIO0_2,
 154         MFP_PIN_GPIO1_2,
 155         MFP_PIN_GPIO2_2,
 156         MFP_PIN_GPIO3_2,
 157         MFP_PIN_GPIO4_2,
 158         MFP_PIN_GPIO5_2,
 159         MFP_PIN_GPIO6_2,
 160         MFP_PIN_GPIO7_2,
 161         MFP_PIN_GPIO8_2,
 162         MFP_PIN_GPIO9_2,
 163         MFP_PIN_GPIO10_2,
 164         MFP_PIN_GPIO11_2,
 165         MFP_PIN_GPIO12_2,
 166         MFP_PIN_GPIO13_2,
 167         MFP_PIN_GPIO14_2,
 168         MFP_PIN_GPIO15_2,
 169         MFP_PIN_GPIO16_2,
 170         MFP_PIN_GPIO17_2,
 171
 172         MFP_PIN_ULPI_STP,
 173         MFP_PIN_ULPI_NXT,
 174         MFP_PIN_ULPI_DIR,
 175
 176         MFP_PIN_nXCVREN,
 177         MFP_PIN_DF_CLE_nOE,
 178         MFP_PIN_DF_nADV1_ALE,
 179         MFP_PIN_DF_SCLK_E,
 180         MFP_PIN_DF_SCLK_S,
 181         MFP_PIN_nBE0,
 182         MFP_PIN_nBE1,
 183         MFP_PIN_DF_nADV2_ALE,
 184         MFP_PIN_DF_INT_RnB,
 185         MFP_PIN_DF_nCS0,
 186         MFP_PIN_DF_nCS1,
 187         MFP_PIN_nLUA,
 188         MFP_PIN_nLLA,
 189         MFP_PIN_DF_nWE,
 190         MFP_PIN_DF_ALE_nWE,
 191         MFP_PIN_DF_nRE_nOE,
 192         MFP_PIN_DF_ADDR0,
 193         MFP_PIN_DF_ADDR1,
 194         MFP_PIN_DF_ADDR2,
 195         MFP_PIN_DF_ADDR3,
 196         MFP_PIN_DF_IO0,
 197         MFP_PIN_DF_IO1,
 198         MFP_PIN_DF_IO2,
 199         MFP_PIN_DF_IO3,
 200         MFP_PIN_DF_IO4,
 201         MFP_PIN_DF_IO5,
 202         MFP_PIN_DF_IO6,
 203         MFP_PIN_DF_IO7,
 204         MFP_PIN_DF_IO8,
 205         MFP_PIN_DF_IO9,
 206         MFP_PIN_DF_IO10,
 207         MFP_PIN_DF_IO11,
 208         MFP_PIN_DF_IO12,
 209         MFP_PIN_DF_IO13,
 210         MFP_PIN_DF_IO14,
 211         MFP_PIN_DF_IO15,
 212
 213         MFP_PIN_MAX,
 214 };
 215
 216 /*
 217  * a possible MFP configuration is represented by a 32-bit integer
 218  *
 219  * bit  0.. 9 - MFP Pin Number (1024 Pins Maximum)
 220  * bit 10..12 - Alternate Function Selection
 221  * bit 13..15 - Drive Strength
 222  * bit 16..18 - Low Power Mode State
 223  * bit 19..20 - Low Power Mode Edge Detection
 224  * bit 21..22 - Run Mode Pull State
 225  *
 226  * to facilitate the definition, the following macros are provided
 227  *
 228  * MFP_CFG_DEFAULT - default MFP configuration value, with
 229  *                alternate function = 0,
 230  *                drive strength = fast 3mA (MFP_DS03X)
 231  *                low power mode = default
 232  *                edge detection = none
 233  *
 234  * MFP_CFG      - default MFPR value with alternate function
 235  * MFP_CFG_DRV  - default MFPR value with alternate function and
 236  *                pin drive strength
 237  * MFP_CFG_LPM  - default MFPR value with alternate function and
 238  *                low power mode
 239  * MFP_CFG_X    - default MFPR value with alternate function,
 240  *                pin drive strength and low power mode
 241  */
 242
 243 typedef unsigned long mfp_cfg_t;
 244
 245 #define MFP_PIN(x)              ((x) & 0x3ff)
 246
 247 #define MFP_AF0                 (0x0 << 10)
 248 #define MFP_AF1                 (0x1 << 10)
 249 #define MFP_AF2                 (0x2 << 10)
 250 #define MFP_AF3                 (0x3 << 10)
 251 #define MFP_AF4                 (0x4 << 10)
 252 #define MFP_AF5                 (0x5 << 10)
 253 #define MFP_AF6                 (0x6 << 10)
 254 #define MFP_AF7                 (0x7 << 10)
 255 #define MFP_AF_MASK             (0x7 << 10)
 256 #define MFP_AF(x)               (((x) >> 10) & 0x7)
 257
 258 #define MFP_DS01X               (0x0 << 13)
 259 #define MFP_DS02X               (0x1 << 13)
 260 #define MFP_DS03X               (0x2 << 13)
 261 #define MFP_DS04X               (0x3 << 13)
 262 #define MFP_DS06X               (0x4 << 13)
 263 #define MFP_DS08X               (0x5 << 13)
 264 #define MFP_DS10X               (0x6 << 13)
 265 #define MFP_DS13X               (0x7 << 13)
 266 #define MFP_DS_MASK             (0x7 << 13)
 267 #define MFP_DS(x)               (((x) >> 13) & 0x7)
 268
 269 #define MFP_LPM_INPUT           (0x0 << 16)
 270 #define MFP_LPM_DRIVE_LOW       (0x1 << 16)
 271 #define MFP_LPM_DRIVE_HIGH      (0x2 << 16)
 272 #define MFP_LPM_PULL_LOW        (0x3 << 16)
 273 #define MFP_LPM_PULL_HIGH       (0x4 << 16)
 274 #define MFP_LPM_FLOAT           (0x5 << 16)
 275 #define MFP_LPM_STATE_MASK      (0x7 << 16)
 276 #define MFP_LPM_STATE(x)        (((x) >> 16) & 0x7)
 277
 278 #define MFP_LPM_EDGE_NONE       (0x0 << 19)
 279 #define MFP_LPM_EDGE_RISE       (0x1 << 19)
 280 #define MFP_LPM_EDGE_FALL       (0x2 << 19)
 281 #define MFP_LPM_EDGE_BOTH       (0x3 << 19)
 282 #define MFP_LPM_EDGE_MASK       (0x3 << 19)
 283 #define MFP_LPM_EDGE(x)         (((x) >> 19) & 0x3)
 284
 285 #define MFP_PULL_NONE           (0x0 << 21)
 286 #define MFP_PULL_LOW            (0x1 << 21)
 287 #define MFP_PULL_HIGH           (0x2 << 21)
 288 #define MFP_PULL_BOTH           (0x3 << 21)
 289 #define MFP_PULL_MASK           (0x3 << 21)
 290 #define MFP_PULL(x)             (((x) >> 21) & 0x3)
 291
 292 #define MFP_CFG_DEFAULT         (MFP_AF0 | MFP_DS03X | MFP_LPM_INPUT |\
 293                                  MFP_LPM_EDGE_NONE | MFP_PULL_NONE)
 294
 295 #define MFP_CFG(pin, af)                \
 296         ((MFP_CFG_DEFAULT & ~MFP_AF_MASK) |\
 297          (MFP_PIN(MFP_PIN_##pin) | MFP_##af))
 298
 299 #define MFP_CFG_DRV(pin, af, drv)       \
 300         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK)) |\
 301          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv))
 302
 303 #define MFP_CFG_LPM(pin, af, lpm)       \
 304         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_LPM_STATE_MASK)) |\
 305          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_LPM_##lpm))
 306
 307 #define MFP_CFG_X(pin, af, drv, lpm)    \
 308         ((MFP_CFG_DEFAULT & ~(MFP_AF_MASK | MFP_DS_MASK | MFP_LPM_STATE_MASK)) |\
 309          (MFP_PIN(MFP_PIN_##pin) | MFP_##af | MFP_##drv | MFP_LPM_##lpm))
 310
 311 #endif /* __ASM_ARCH_MFP_H */