arch/arm/plat-samsung/include/plat/sdhci.h

   1 /* linux/arch/arm/plat-samsung/include/plat/sdhci.h
   2  *
   3  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * Copyright 2008 Openmoko, Inc.
   7  * Copyright 2008 Simtec Electronics
   8  *      http://armlinux.simtec.co.uk/
   9  *      Ben Dooks <ben@simtec.co.uk>
  10  *
  11  * S3C Platform - SDHCI (HSMMC) platform data definitions
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16 */
  17
  18 #ifndef __PLAT_S3C_SDHCI_H
  19 #define __PLAT_S3C_SDHCI_H __FILE__
  20
  21 struct platform_device;
  22 struct mmc_host;
  23 struct mmc_card;
  24 struct mmc_ios;
  25
  26 enum cd_types {
  27         S3C_SDHCI_CD_INTERNAL,  /* use mmc internal CD line */
  28         S3C_SDHCI_CD_EXTERNAL,  /* use external callback */
  29         S3C_SDHCI_CD_GPIO,      /* use external gpio pin for CD line */
  30         S3C_SDHCI_CD_NONE,      /* no CD line, use polling to detect card */
  31         S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
  32 };
  33
  34 enum clk_types {
  35         S3C_SDHCI_CLK_DIV_INTERNAL,     /* use mmc internal clock divider */
  36         S3C_SDHCI_CLK_DIV_EXTERNAL,     /* use external clock divider */
  37 };
  38
  39 /**
  40  * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
  41  * @max_width: The maximum number of data bits supported.
  42  * @host_caps: Standard MMC host capabilities bit field.
  43  * @cd_type: Type of Card Detection method (see cd_types enum above)
  44  * @clk_type: Type of clock divider method (see clk_types enum above)
  45  * @ext_cd_init: Initialize external card detect subsystem. Called on
  46  *               sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
  47  *               notify_func argument is a callback to the sdhci-s3c driver
  48  *               that triggers the card detection event. Callback arguments:
  49  *               dev is pointer to platform device of the host controller,
  50  *               state is new state of the card (0 - removed, 1 - inserted).
  51  * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
  52  *               sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
  53  *               notify_func argument is the same callback as for ext_cd_init.
  54  * @ext_cd_gpio: gpio pin used for external CD line, valid only if
  55  *               cd_type == S3C_SDHCI_CD_GPIO
  56  * @ext_cd_gpio_invert: invert values for external CD gpio line
  57  * @cfg_gpio: Configure the GPIO for a specific card bit-width
  58  * @cfg_card: Configure the interface for a specific card and speed. This
  59  *            is necessary the controllers and/or GPIO blocks require the
  60  *            changing of driver-strength and other controls dependent on
  61  *            the card and speed of operation.
  62  *
  63  * Initialisation data specific to either the machine or the platform
  64  * for the device driver to use or call-back when configuring gpio or
  65  * card speed information.
  66 */
  67 struct s3c_sdhci_platdata {
  68         unsigned int    max_width;
  69         unsigned int    host_caps;
  70         enum cd_types   cd_type;
  71         enum clk_types  clk_type;
  72
  73         char            **clocks;       /* set of clock sources */
  74
  75         int             ext_cd_gpio;
  76         bool            ext_cd_gpio_invert;
  77         int     (*ext_cd_init)(void (*notify_func)(struct platform_device *,
  78                                                    int state));
  79         int     (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
  80                                                       int state));
  81
  82         void    (*cfg_gpio)(struct platform_device *dev, int width);
  83         void    (*cfg_card)(struct platform_device *dev,
  84                             void __iomem *regbase,
  85                             struct mmc_ios *ios,
  86                             struct mmc_card *card);
  87 };
  88
  89 /**
  90  * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
  91  * @pd: Platform data to register to device.
  92  *
  93  * Register the given platform data for use withe S3C SDHCI device.
  94  * The call will copy the platform data, so the board definitions can
  95  * make the structure itself __initdata.
  96  */
  97 extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
  98 extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
  99 extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
 100 extern void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd);
 101
 102 /* Default platform data, exported so that per-cpu initialisation can
 103  * set the correct one when there are more than one cpu type selected.
 104 */
 105
 106 extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
 107 extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
 108 extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
 109 extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
 110
 111 /* Helper function availability */
 112
 113 extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 114 extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 115 extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 116 extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 117 extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 118 extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 119 extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 120 extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 121 extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 122 extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 123 extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 124 extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 125 extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 126 extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 127 extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 128 extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 129
 130 /* S3C2416 SDHCI setup */
 131
 132 #ifdef CONFIG_S3C2416_SETUP_SDHCI
 133 extern char *s3c2416_hsmmc_clksrcs[4];
 134
 135 extern void s3c2416_setup_sdhci_cfg_card(struct platform_device *dev,
 136                                            void __iomem *r,
 137                                            struct mmc_ios *ios,
 138                                            struct mmc_card *card);
 139
 140 static inline void s3c2416_default_sdhci0(void)
 141 {
 142 #ifdef CONFIG_S3C_DEV_HSMMC
 143         s3c_hsmmc0_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
 144         s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio;
 145         s3c_hsmmc0_def_platdata.cfg_card = s3c2416_setup_sdhci_cfg_card;
 146 #endif /* CONFIG_S3C_DEV_HSMMC */
 147 }
 148
 149 static inline void s3c2416_default_sdhci1(void)
 150 {
 151 #ifdef CONFIG_S3C_DEV_HSMMC1
 152         s3c_hsmmc1_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
 153         s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio;
 154         s3c_hsmmc1_def_platdata.cfg_card = s3c2416_setup_sdhci_cfg_card;
 155 #endif /* CONFIG_S3C_DEV_HSMMC1 */
 156 }
 157
 158 #else
 159 static inline void s3c2416_default_sdhci0(void) { }
 160 static inline void s3c2416_default_sdhci1(void) { }
 161
 162 #endif /* CONFIG_S3C2416_SETUP_SDHCI */
 163 /* S3C64XX SDHCI setup */
 164
 165 #ifdef CONFIG_S3C64XX_SETUP_SDHCI
 166 extern char *s3c64xx_hsmmc_clksrcs[4];
 167
 168 extern void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev,
 169                                          void __iomem *r,
 170                                          struct mmc_ios *ios,
 171                                          struct mmc_card *card);
 172
 173 static inline void s3c6400_default_sdhci0(void)
 174 {
 175 #ifdef CONFIG_S3C_DEV_HSMMC
 176         s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 177         s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 178         s3c_hsmmc0_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
 179 #endif
 180 }
 181
 182 static inline void s3c6400_default_sdhci1(void)
 183 {
 184 #ifdef CONFIG_S3C_DEV_HSMMC1
 185         s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 186         s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 187         s3c_hsmmc1_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
 188 #endif
 189 }
 190
 191 static inline void s3c6400_default_sdhci2(void)
 192 {
 193 #ifdef CONFIG_S3C_DEV_HSMMC2
 194         s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 195         s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 196         s3c_hsmmc2_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
 197 #endif
 198 }
 199
 200 extern void s3c6410_setup_sdhci_cfg_card(struct platform_device *dev,
 201                                          void __iomem *r,
 202                                          struct mmc_ios *ios,
 203                                          struct mmc_card *card);
 204
 205 static inline void s3c6410_default_sdhci0(void)
 206 {
 207 #ifdef CONFIG_S3C_DEV_HSMMC
 208         s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 209         s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 210         s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
 211 #endif
 212 }
 213
 214 static inline void s3c6410_default_sdhci1(void)
 215 {
 216 #ifdef CONFIG_S3C_DEV_HSMMC1
 217         s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 218         s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 219         s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
 220 #endif
 221 }
 222
 223 static inline void s3c6410_default_sdhci2(void)
 224 {
 225 #ifdef CONFIG_S3C_DEV_HSMMC2
 226         s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 227         s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 228         s3c_hsmmc2_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
 229 #endif
 230 }
 231
 232 #else
 233 static inline void s3c6410_default_sdhci0(void) { }
 234 static inline void s3c6410_default_sdhci1(void) { }
 235 static inline void s3c6410_default_sdhci2(void) { }
 236 static inline void s3c6400_default_sdhci0(void) { }
 237 static inline void s3c6400_default_sdhci1(void) { }
 238 static inline void s3c6400_default_sdhci2(void) { }
 239
 240 #endif /* CONFIG_S3C64XX_SETUP_SDHCI */
 241
 242 /* S5PC100 SDHCI setup */
 243
 244 #ifdef CONFIG_S5PC100_SETUP_SDHCI
 245 extern char *s5pc100_hsmmc_clksrcs[4];
 246
 247 extern void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev,
 248                                            void __iomem *r,
 249                                            struct mmc_ios *ios,
 250                                            struct mmc_card *card);
 251
 252 static inline void s5pc100_default_sdhci0(void)
 253 {
 254 #ifdef CONFIG_S3C_DEV_HSMMC
 255         s3c_hsmmc0_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 256         s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio;
 257         s3c_hsmmc0_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
 258 #endif
 259 }
 260
 261 static inline void s5pc100_default_sdhci1(void)
 262 {
 263 #ifdef CONFIG_S3C_DEV_HSMMC1
 264         s3c_hsmmc1_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 265         s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio;
 266         s3c_hsmmc1_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
 267 #endif
 268 }
 269
 270 static inline void s5pc100_default_sdhci2(void)
 271 {
 272 #ifdef CONFIG_S3C_DEV_HSMMC2
 273         s3c_hsmmc2_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 274         s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio;
 275         s3c_hsmmc2_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
 276 #endif
 277 }
 278
 279 #else
 280 static inline void s5pc100_default_sdhci0(void) { }
 281 static inline void s5pc100_default_sdhci1(void) { }
 282 static inline void s5pc100_default_sdhci2(void) { }
 283
 284 #endif /* CONFIG_S5PC100_SETUP_SDHCI */
 285
 286 /* S5PV210 SDHCI setup */
 287
 288 #ifdef CONFIG_S5PV210_SETUP_SDHCI
 289 extern char *s5pv210_hsmmc_clksrcs[4];
 290
 291 extern void s5pv210_setup_sdhci_cfg_card(struct platform_device *dev,
 292                                            void __iomem *r,
 293                                            struct mmc_ios *ios,
 294                                            struct mmc_card *card);
 295
 296 static inline void s5pv210_default_sdhci0(void)
 297 {
 298 #ifdef CONFIG_S3C_DEV_HSMMC
 299         s3c_hsmmc0_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 300         s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
 301         s3c_hsmmc0_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
 302 #endif
 303 }
 304
 305 static inline void s5pv210_default_sdhci1(void)
 306 {
 307 #ifdef CONFIG_S3C_DEV_HSMMC1
 308         s3c_hsmmc1_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 309         s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
 310         s3c_hsmmc1_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
 311 #endif
 312 }
 313
 314 static inline void s5pv210_default_sdhci2(void)
 315 {
 316 #ifdef CONFIG_S3C_DEV_HSMMC2
 317         s3c_hsmmc2_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 318         s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
 319         s3c_hsmmc2_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
 320 #endif
 321 }
 322
 323 static inline void s5pv210_default_sdhci3(void)
 324 {
 325 #ifdef CONFIG_S3C_DEV_HSMMC3
 326         s3c_hsmmc3_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 327         s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
 328         s3c_hsmmc3_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
 329 #endif
 330 }
 331
 332 #else
 333 static inline void s5pv210_default_sdhci0(void) { }
 334 static inline void s5pv210_default_sdhci1(void) { }
 335 static inline void s5pv210_default_sdhci2(void) { }
 336 static inline void s5pv210_default_sdhci3(void) { }
 337
 338 #endif /* CONFIG_S5PV210_SETUP_SDHCI */
 339
 340 /* EXYNOS4 SDHCI setup */
 341 #ifdef CONFIG_EXYNOS4_SETUP_SDHCI
 342 extern char *exynos4_hsmmc_clksrcs[4];
 343
 344 extern void exynos4_setup_sdhci_cfg_card(struct platform_device *dev,
 345                                            void __iomem *r,
 346                                            struct mmc_ios *ios,
 347                                            struct mmc_card *card);
 348
 349 static inline void exynos4_default_sdhci0(void)
 350 {
 351 #ifdef CONFIG_S3C_DEV_HSMMC
 352         s3c_hsmmc0_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 353         s3c_hsmmc0_def_platdata.cfg_gpio = exynos4_setup_sdhci0_cfg_gpio;
 354         s3c_hsmmc0_def_platdata.cfg_card = exynos4_setup_sdhci_cfg_card;
 355 #endif
 356 }
 357
 358 static inline void exynos4_default_sdhci1(void)
 359 {
 360 #ifdef CONFIG_S3C_DEV_HSMMC1
 361         s3c_hsmmc1_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 362         s3c_hsmmc1_def_platdata.cfg_gpio = exynos4_setup_sdhci1_cfg_gpio;
 363         s3c_hsmmc1_def_platdata.cfg_card = exynos4_setup_sdhci_cfg_card;
 364 #endif
 365 }
 366
 367 static inline void exynos4_default_sdhci2(void)
 368 {
 369 #ifdef CONFIG_S3C_DEV_HSMMC2
 370         s3c_hsmmc2_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 371         s3c_hsmmc2_def_platdata.cfg_gpio = exynos4_setup_sdhci2_cfg_gpio;
 372         s3c_hsmmc2_def_platdata.cfg_card = exynos4_setup_sdhci_cfg_card;
 373 #endif
 374 }
 375
 376 static inline void exynos4_default_sdhci3(void)
 377 {
 378 #ifdef CONFIG_S3C_DEV_HSMMC3
 379         s3c_hsmmc3_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 380         s3c_hsmmc3_def_platdata.cfg_gpio = exynos4_setup_sdhci3_cfg_gpio;
 381         s3c_hsmmc3_def_platdata.cfg_card = exynos4_setup_sdhci_cfg_card;
 382 #endif
 383 }
 384
 385 #else
 386 static inline void exynos4_default_sdhci0(void) { }
 387 static inline void exynos4_default_sdhci1(void) { }
 388 static inline void exynos4_default_sdhci2(void) { }
 389 static inline void exynos4_default_sdhci3(void) { }
 390
 391 #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
 392
 393 #endif /* __PLAT_S3C_SDHCI_H */