LXR linux/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
  21struct platform_device;
  22struct mmc_host;
  23struct mmc_card;
  24struct mmc_ios;
  25
  26enum 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
  34enum 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*/
  67struct 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 */
  97extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
  98extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
  99extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
 100extern 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
 106extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
 107extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
 108extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
 109extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
 110
 111/* Helper function availability */
 112
 113extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 114extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 115extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 116extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 117extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 118extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 119extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 120extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 121extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 122extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 123extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 124extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 125extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 126extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 127extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 128extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 129
 130/* S3C2416 SDHCI setup */
 131
 132#ifdef CONFIG_S3C2416_SETUP_SDHCI
 133extern char *s3c2416_hsmmc_clksrcs[4];
 134
 135extern 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
 140static 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
 149static 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
 159static inline void s3c2416_default_sdhci0(void) { }
 160static inline void s3c2416_default_sdhci1(void) { }
 161
 162#endif /* CONFIG_S3C2416_SETUP_SDHCI */
 163/* S3C64XX SDHCI setup */
 164
 165#ifdef CONFIG_S3C64XX_SETUP_SDHCI
 166extern char *s3c64xx_hsmmc_clksrcs[4];
 167
 168extern 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
 173static 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
 182static 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
 191static 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
 200extern 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
 205static 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
 214static 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
 223static 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
 233static inline void s3c6410_default_sdhci0(void) { }
 234static inline void s3c6410_default_sdhci1(void) { }
 235static inline void s3c6410_default_sdhci2(void) { }
 236static inline void s3c6400_default_sdhci0(void) { }
 237static inline void s3c6400_default_sdhci1(void) { }
 238static 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
 245extern char *s5pc100_hsmmc_clksrcs[4];
 246
 247extern 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
 252static 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
 261static 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
 270static 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
 280static inline void s5pc100_default_sdhci0(void) { }
 281static inline void s5pc100_default_sdhci1(void) { }
 282static 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
 289extern char *s5pv210_hsmmc_clksrcs[4];
 290
 291extern 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
 296static 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
 305static 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
 314static 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
 323static 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
 333static inline void s5pv210_default_sdhci0(void) { }
 334static inline void s5pv210_default_sdhci1(void) { }
 335static inline void s5pv210_default_sdhci2(void) { }
 336static inline void s5pv210_default_sdhci3(void) { }
 337
 338#endif /* CONFIG_S5PV210_SETUP_SDHCI */
 339
 340/* EXYNOS4 SDHCI setup */
 341#ifdef CONFIG_EXYNOS4_SETUP_SDHCI
 342extern char *exynos4_hsmmc_clksrcs[4];
 343
 344extern 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
 349static 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
 358static 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
 367static 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
 376static 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
 386static inline void exynos4_default_sdhci0(void) { }
 387static inline void exynos4_default_sdhci1(void) { }
 388static inline void exynos4_default_sdhci2(void) { }
 389static inline void exynos4_default_sdhci3(void) { }
 390
 391#endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
 392
 393#endif /* __PLAT_S3C_SDHCI_H */
 394