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
  21#include <plat/devs.h>
  22
  23struct platform_device;
  24struct mmc_host;
  25struct mmc_card;
  26struct mmc_ios;
  27
  28enum cd_types {
  29        S3C_SDHCI_CD_INTERNAL,  /* use mmc internal CD line */
  30        S3C_SDHCI_CD_EXTERNAL,  /* use external callback */
  31        S3C_SDHCI_CD_GPIO,      /* use external gpio pin for CD line */
  32        S3C_SDHCI_CD_NONE,      /* no CD line, use polling to detect card */
  33        S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
  34};
  35
  36/**
  37 * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
  38 * @max_width: The maximum number of data bits supported.
  39 * @host_caps: Standard MMC host capabilities bit field.
  40 * @host_caps2: The second standard MMC host capabilities bit field.
  41 * @cd_type: Type of Card Detection method (see cd_types enum above)
  42 * @ext_cd_init: Initialize external card detect subsystem. Called on
  43 *               sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
  44 *               notify_func argument is a callback to the sdhci-s3c driver
  45 *               that triggers the card detection event. Callback arguments:
  46 *               dev is pointer to platform device of the host controller,
  47 *               state is new state of the card (0 - removed, 1 - inserted).
  48 * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
  49 *               sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
  50 *               notify_func argument is the same callback as for ext_cd_init.
  51 * @ext_cd_gpio: gpio pin used for external CD line, valid only if
  52 *               cd_type == S3C_SDHCI_CD_GPIO
  53 * @ext_cd_gpio_invert: invert values for external CD gpio line
  54 * @cfg_gpio: Configure the GPIO for a specific card bit-width
  55 *
  56 * Initialisation data specific to either the machine or the platform
  57 * for the device driver to use or call-back when configuring gpio or
  58 * card speed information.
  59*/
  60struct s3c_sdhci_platdata {
  61        unsigned int    max_width;
  62        unsigned int    host_caps;
  63        unsigned int    host_caps2;
  64        unsigned int    pm_caps;
  65        enum cd_types   cd_type;
  66
  67        int             ext_cd_gpio;
  68        bool            ext_cd_gpio_invert;
  69        int     (*ext_cd_init)(void (*notify_func)(struct platform_device *,
  70                                                   int state));
  71        int     (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
  72                                                      int state));
  73
  74        void    (*cfg_gpio)(struct platform_device *dev, int width);
  75};
  76
  77/* s3c_sdhci_set_platdata() - common helper for setting SDHCI platform data
  78 * @pd: The default platform data for this device.
  79 * @set: Pointer to the platform data to fill in.
  80 */
  81extern void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd,
  82                                    struct s3c_sdhci_platdata *set);
  83
  84/**
  85 * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
  86 * @pd: Platform data to register to device.
  87 *
  88 * Register the given platform data for use withe S3C SDHCI device.
  89 * The call will copy the platform data, so the board definitions can
  90 * make the structure itself __initdata.
  91 */
  92extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
  93extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
  94extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
  95extern void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd);
  96
  97/* Default platform data, exported so that per-cpu initialisation can
  98 * set the correct one when there are more than one cpu type selected.
  99*/
 100
 101extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
 102extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
 103extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
 104extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
 105
 106/* Helper function availability */
 107
 108extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 109extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 110extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 111extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 112extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 113extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 114extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 115extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 116extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 117extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 118extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 119extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 120extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 121extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 122extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 123extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 124extern void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 125extern void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 126extern void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 127extern void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 128
 129/* S3C2416 SDHCI setup */
 130
 131#ifdef CONFIG_S3C2416_SETUP_SDHCI
 132static inline void s3c2416_default_sdhci0(void)
 133{
 134#ifdef CONFIG_S3C_DEV_HSMMC
 135        s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio;
 136#endif /* CONFIG_S3C_DEV_HSMMC */
 137}
 138
 139static inline void s3c2416_default_sdhci1(void)
 140{
 141#ifdef CONFIG_S3C_DEV_HSMMC1
 142        s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio;
 143#endif /* CONFIG_S3C_DEV_HSMMC1 */
 144}
 145
 146#else
 147static inline void s3c2416_default_sdhci0(void) { }
 148static inline void s3c2416_default_sdhci1(void) { }
 149
 150#endif /* CONFIG_S3C2416_SETUP_SDHCI */
 151
 152/* S3C64XX SDHCI setup */
 153
 154#ifdef CONFIG_S3C64XX_SETUP_SDHCI
 155static inline void s3c6400_default_sdhci0(void)
 156{
 157#ifdef CONFIG_S3C_DEV_HSMMC
 158        s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 159#endif
 160}
 161
 162static inline void s3c6400_default_sdhci1(void)
 163{
 164#ifdef CONFIG_S3C_DEV_HSMMC1
 165        s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 166#endif
 167}
 168
 169static inline void s3c6400_default_sdhci2(void)
 170{
 171#ifdef CONFIG_S3C_DEV_HSMMC2
 172        s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 173#endif
 174}
 175
 176static inline void s3c6410_default_sdhci0(void)
 177{
 178#ifdef CONFIG_S3C_DEV_HSMMC
 179        s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 180#endif
 181}
 182
 183static inline void s3c6410_default_sdhci1(void)
 184{
 185#ifdef CONFIG_S3C_DEV_HSMMC1
 186        s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 187#endif
 188}
 189
 190static inline void s3c6410_default_sdhci2(void)
 191{
 192#ifdef CONFIG_S3C_DEV_HSMMC2
 193        s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 194#endif
 195}
 196
 197#else
 198static inline void s3c6410_default_sdhci0(void) { }
 199static inline void s3c6410_default_sdhci1(void) { }
 200static inline void s3c6410_default_sdhci2(void) { }
 201static inline void s3c6400_default_sdhci0(void) { }
 202static inline void s3c6400_default_sdhci1(void) { }
 203static inline void s3c6400_default_sdhci2(void) { }
 204
 205#endif /* CONFIG_S3C64XX_SETUP_SDHCI */
 206
 207/* S5P64X0 SDHCI setup */
 208
 209#ifdef CONFIG_S5P64X0_SETUP_SDHCI
 210static inline void s5p64x0_default_sdhci0(void)
 211{
 212#ifdef CONFIG_S3C_DEV_HSMMC
 213        s3c_hsmmc0_def_platdata.cfg_gpio = s5p64x0_setup_sdhci0_cfg_gpio;
 214#endif
 215}
 216
 217static inline void s5p64x0_default_sdhci1(void)
 218{
 219#ifdef CONFIG_S3C_DEV_HSMMC1
 220        s3c_hsmmc1_def_platdata.cfg_gpio = s5p64x0_setup_sdhci1_cfg_gpio;
 221#endif
 222}
 223
 224static inline void s5p6440_default_sdhci2(void)
 225{
 226#ifdef CONFIG_S3C_DEV_HSMMC2
 227        s3c_hsmmc2_def_platdata.cfg_gpio = s5p6440_setup_sdhci2_cfg_gpio;
 228#endif
 229}
 230
 231static inline void s5p6450_default_sdhci2(void)
 232{
 233#ifdef CONFIG_S3C_DEV_HSMMC2
 234        s3c_hsmmc2_def_platdata.cfg_gpio = s5p6450_setup_sdhci2_cfg_gpio;
 235#endif
 236}
 237
 238#else
 239static inline void s5p64x0_default_sdhci0(void) { }
 240static inline void s5p64x0_default_sdhci1(void) { }
 241static inline void s5p6440_default_sdhci2(void) { }
 242static inline void s5p6450_default_sdhci2(void) { }
 243
 244#endif /* CONFIG_S5P64X0_SETUP_SDHCI */
 245
 246/* S5PC100 SDHCI setup */
 247
 248#ifdef CONFIG_S5PC100_SETUP_SDHCI
 249static inline void s5pc100_default_sdhci0(void)
 250{
 251#ifdef CONFIG_S3C_DEV_HSMMC
 252        s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio;
 253#endif
 254}
 255
 256static inline void s5pc100_default_sdhci1(void)
 257{
 258#ifdef CONFIG_S3C_DEV_HSMMC1
 259        s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio;
 260#endif
 261}
 262
 263static inline void s5pc100_default_sdhci2(void)
 264{
 265#ifdef CONFIG_S3C_DEV_HSMMC2
 266        s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio;
 267#endif
 268}
 269
 270#else
 271static inline void s5pc100_default_sdhci0(void) { }
 272static inline void s5pc100_default_sdhci1(void) { }
 273static inline void s5pc100_default_sdhci2(void) { }
 274
 275#endif /* CONFIG_S5PC100_SETUP_SDHCI */
 276
 277/* S5PV210 SDHCI setup */
 278
 279#ifdef CONFIG_S5PV210_SETUP_SDHCI
 280static inline void s5pv210_default_sdhci0(void)
 281{
 282#ifdef CONFIG_S3C_DEV_HSMMC
 283        s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
 284#endif
 285}
 286
 287static inline void s5pv210_default_sdhci1(void)
 288{
 289#ifdef CONFIG_S3C_DEV_HSMMC1
 290        s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
 291#endif
 292}
 293
 294static inline void s5pv210_default_sdhci2(void)
 295{
 296#ifdef CONFIG_S3C_DEV_HSMMC2
 297        s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
 298#endif
 299}
 300
 301static inline void s5pv210_default_sdhci3(void)
 302{
 303#ifdef CONFIG_S3C_DEV_HSMMC3
 304        s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
 305#endif
 306}
 307
 308#else
 309static inline void s5pv210_default_sdhci0(void) { }
 310static inline void s5pv210_default_sdhci1(void) { }
 311static inline void s5pv210_default_sdhci2(void) { }
 312static inline void s5pv210_default_sdhci3(void) { }
 313
 314#endif /* CONFIG_S5PV210_SETUP_SDHCI */
 315
 316/* EXYNOS4 SDHCI setup */
 317#ifdef CONFIG_EXYNOS4_SETUP_SDHCI
 318static inline void exynos4_default_sdhci0(void)
 319{
 320#ifdef CONFIG_S3C_DEV_HSMMC
 321        s3c_hsmmc0_def_platdata.cfg_gpio = exynos4_setup_sdhci0_cfg_gpio;
 322#endif
 323}
 324
 325static inline void exynos4_default_sdhci1(void)
 326{
 327#ifdef CONFIG_S3C_DEV_HSMMC1
 328        s3c_hsmmc1_def_platdata.cfg_gpio = exynos4_setup_sdhci1_cfg_gpio;
 329#endif
 330}
 331
 332static inline void exynos4_default_sdhci2(void)
 333{
 334#ifdef CONFIG_S3C_DEV_HSMMC2
 335        s3c_hsmmc2_def_platdata.cfg_gpio = exynos4_setup_sdhci2_cfg_gpio;
 336#endif
 337}
 338
 339static inline void exynos4_default_sdhci3(void)
 340{
 341#ifdef CONFIG_S3C_DEV_HSMMC3
 342        s3c_hsmmc3_def_platdata.cfg_gpio = exynos4_setup_sdhci3_cfg_gpio;
 343#endif
 344}
 345
 346#else
 347static inline void exynos4_default_sdhci0(void) { }
 348static inline void exynos4_default_sdhci1(void) { }
 349static inline void exynos4_default_sdhci2(void) { }
 350static inline void exynos4_default_sdhci3(void) { }
 351
 352#endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
 353
 354static inline void s3c_sdhci_setname(int id, char *name)
 355{
 356        switch (id) {
 357#ifdef CONFIG_S3C_DEV_HSMMC
 358        case 0:
 359                s3c_device_hsmmc0.name = name;
 360                break;
 361#endif
 362#ifdef CONFIG_S3C_DEV_HSMMC1
 363        case 1:
 364                s3c_device_hsmmc1.name = name;
 365                break;
 366#endif
 367#ifdef CONFIG_S3C_DEV_HSMMC2
 368        case 2:
 369                s3c_device_hsmmc2.name = name;
 370                break;
 371#endif
 372#ifdef CONFIG_S3C_DEV_HSMMC3
 373        case 3:
 374                s3c_device_hsmmc3.name = name;
 375                break;
 376#endif
 377        }
 378}
 379
 380#endif /* __PLAT_S3C_SDHCI_H */
 381