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  *
  59  * Initialisation data specific to either the machine or the platform
  60  * for the device driver to use or call-back when configuring gpio or
  61  * card speed information.
  62 */
  63 struct s3c_sdhci_platdata {
  64         unsigned int    max_width;
  65         unsigned int    host_caps;
  66         unsigned int    pm_caps;
  67         enum cd_types   cd_type;
  68         enum clk_types  clk_type;
  69
  70         int             ext_cd_gpio;
  71         bool            ext_cd_gpio_invert;
  72         int     (*ext_cd_init)(void (*notify_func)(struct platform_device *,
  73                                                    int state));
  74         int     (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
  75                                                       int state));
  76
  77         void    (*cfg_gpio)(struct platform_device *dev, int width);
  78 };
  79
  80 /* s3c_sdhci_set_platdata() - common helper for setting SDHCI platform data
  81  * @pd: The default platform data for this device.
  82  * @set: Pointer to the platform data to fill in.
  83  */
  84 extern void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd,
  85                                     struct s3c_sdhci_platdata *set);
  86
  87 /**
  88  * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
  89  * @pd: Platform data to register to device.
  90  *
  91  * Register the given platform data for use withe S3C SDHCI device.
  92  * The call will copy the platform data, so the board definitions can
  93  * make the structure itself __initdata.
  94  */
  95 extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
  96 extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
  97 extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
  98 extern void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd);
  99
 100 /* Default platform data, exported so that per-cpu initialisation can
 101  * set the correct one when there are more than one cpu type selected.
 102 */
 103
 104 extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
 105 extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
 106 extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
 107 extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;
 108
 109 /* Helper function availability */
 110
 111 extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 112 extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 113 extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 114 extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 115 extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 116 extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 117 extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 118 extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 119 extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 120 extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 121 extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 122 extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 123 extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 124 extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 125 extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 126 extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
 127 extern void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 128 extern void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 129 extern void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 130 extern void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 131
 132 /* S3C2416 SDHCI setup */
 133
 134 #ifdef CONFIG_S3C2416_SETUP_SDHCI
 135 static inline void s3c2416_default_sdhci0(void)
 136 {
 137 #ifdef CONFIG_S3C_DEV_HSMMC
 138         s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio;
 139 #endif /* CONFIG_S3C_DEV_HSMMC */
 140 }
 141
 142 static inline void s3c2416_default_sdhci1(void)
 143 {
 144 #ifdef CONFIG_S3C_DEV_HSMMC1
 145         s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio;
 146 #endif /* CONFIG_S3C_DEV_HSMMC1 */
 147 }
 148
 149 #else
 150 static inline void s3c2416_default_sdhci0(void) { }
 151 static inline void s3c2416_default_sdhci1(void) { }
 152
 153 #endif /* CONFIG_S3C2416_SETUP_SDHCI */
 154
 155 /* S3C64XX SDHCI setup */
 156
 157 #ifdef CONFIG_S3C64XX_SETUP_SDHCI
 158 static inline void s3c6400_default_sdhci0(void)
 159 {
 160 #ifdef CONFIG_S3C_DEV_HSMMC
 161         s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 162 #endif
 163 }
 164
 165 static inline void s3c6400_default_sdhci1(void)
 166 {
 167 #ifdef CONFIG_S3C_DEV_HSMMC1
 168         s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 169 #endif
 170 }
 171
 172 static inline void s3c6400_default_sdhci2(void)
 173 {
 174 #ifdef CONFIG_S3C_DEV_HSMMC2
 175         s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 176 #endif
 177 }
 178
 179 static inline void s3c6410_default_sdhci0(void)
 180 {
 181 #ifdef CONFIG_S3C_DEV_HSMMC
 182         s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 183 #endif
 184 }
 185
 186 static inline void s3c6410_default_sdhci1(void)
 187 {
 188 #ifdef CONFIG_S3C_DEV_HSMMC1
 189         s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 190 #endif
 191 }
 192
 193 static inline void s3c6410_default_sdhci2(void)
 194 {
 195 #ifdef CONFIG_S3C_DEV_HSMMC2
 196         s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 197 #endif
 198 }
 199
 200 #else
 201 static inline void s3c6410_default_sdhci0(void) { }
 202 static inline void s3c6410_default_sdhci1(void) { }
 203 static inline void s3c6410_default_sdhci2(void) { }
 204 static inline void s3c6400_default_sdhci0(void) { }
 205 static inline void s3c6400_default_sdhci1(void) { }
 206 static inline void s3c6400_default_sdhci2(void) { }
 207
 208 #endif /* CONFIG_S3C64XX_SETUP_SDHCI */
 209
 210 /* S5P64X0 SDHCI setup */
 211
 212 #ifdef CONFIG_S5P64X0_SETUP_SDHCI
 213 static inline void s5p64x0_default_sdhci0(void)
 214 {
 215 #ifdef CONFIG_S3C_DEV_HSMMC
 216         s3c_hsmmc0_def_platdata.cfg_gpio = s5p64x0_setup_sdhci0_cfg_gpio;
 217 #endif
 218 }
 219
 220 static inline void s5p64x0_default_sdhci1(void)
 221 {
 222 #ifdef CONFIG_S3C_DEV_HSMMC1
 223         s3c_hsmmc1_def_platdata.cfg_gpio = s5p64x0_setup_sdhci1_cfg_gpio;
 224 #endif
 225 }
 226
 227 static inline void s5p6440_default_sdhci2(void)
 228 {
 229 #ifdef CONFIG_S3C_DEV_HSMMC2
 230         s3c_hsmmc2_def_platdata.cfg_gpio = s5p6440_setup_sdhci2_cfg_gpio;
 231 #endif
 232 }
 233
 234 static inline void s5p6450_default_sdhci2(void)
 235 {
 236 #ifdef CONFIG_S3C_DEV_HSMMC2
 237         s3c_hsmmc2_def_platdata.cfg_gpio = s5p6450_setup_sdhci2_cfg_gpio;
 238 #endif
 239 }
 240
 241 #else
 242 static inline void s5p64x0_default_sdhci0(void) { }
 243 static inline void s5p64x0_default_sdhci1(void) { }
 244 static inline void s5p6440_default_sdhci2(void) { }
 245 static inline void s5p6450_default_sdhci2(void) { }
 246
 247 #endif /* CONFIG_S5P64X0_SETUP_SDHCI */
 248
 249 /* S5PC100 SDHCI setup */
 250
 251 #ifdef CONFIG_S5PC100_SETUP_SDHCI
 252 static inline void s5pc100_default_sdhci0(void)
 253 {
 254 #ifdef CONFIG_S3C_DEV_HSMMC
 255         s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio;
 256 #endif
 257 }
 258
 259 static inline void s5pc100_default_sdhci1(void)
 260 {
 261 #ifdef CONFIG_S3C_DEV_HSMMC1
 262         s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio;
 263 #endif
 264 }
 265
 266 static inline void s5pc100_default_sdhci2(void)
 267 {
 268 #ifdef CONFIG_S3C_DEV_HSMMC2
 269         s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio;
 270 #endif
 271 }
 272
 273 #else
 274 static inline void s5pc100_default_sdhci0(void) { }
 275 static inline void s5pc100_default_sdhci1(void) { }
 276 static inline void s5pc100_default_sdhci2(void) { }
 277
 278 #endif /* CONFIG_S5PC100_SETUP_SDHCI */
 279
 280 /* S5PV210 SDHCI setup */
 281
 282 #ifdef CONFIG_S5PV210_SETUP_SDHCI
 283 static inline void s5pv210_default_sdhci0(void)
 284 {
 285 #ifdef CONFIG_S3C_DEV_HSMMC
 286         s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
 287 #endif
 288 }
 289
 290 static inline void s5pv210_default_sdhci1(void)
 291 {
 292 #ifdef CONFIG_S3C_DEV_HSMMC1
 293         s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
 294 #endif
 295 }
 296
 297 static inline void s5pv210_default_sdhci2(void)
 298 {
 299 #ifdef CONFIG_S3C_DEV_HSMMC2
 300         s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
 301 #endif
 302 }
 303
 304 static inline void s5pv210_default_sdhci3(void)
 305 {
 306 #ifdef CONFIG_S3C_DEV_HSMMC3
 307         s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
 308 #endif
 309 }
 310
 311 #else
 312 static inline void s5pv210_default_sdhci0(void) { }
 313 static inline void s5pv210_default_sdhci1(void) { }
 314 static inline void s5pv210_default_sdhci2(void) { }
 315 static inline void s5pv210_default_sdhci3(void) { }
 316
 317 #endif /* CONFIG_S5PV210_SETUP_SDHCI */
 318
 319 /* EXYNOS4 SDHCI setup */
 320 #ifdef CONFIG_EXYNOS4_SETUP_SDHCI
 321 static inline void exynos4_default_sdhci0(void)
 322 {
 323 #ifdef CONFIG_S3C_DEV_HSMMC
 324         s3c_hsmmc0_def_platdata.cfg_gpio = exynos4_setup_sdhci0_cfg_gpio;
 325 #endif
 326 }
 327
 328 static inline void exynos4_default_sdhci1(void)
 329 {
 330 #ifdef CONFIG_S3C_DEV_HSMMC1
 331         s3c_hsmmc1_def_platdata.cfg_gpio = exynos4_setup_sdhci1_cfg_gpio;
 332 #endif
 333 }
 334
 335 static inline void exynos4_default_sdhci2(void)
 336 {
 337 #ifdef CONFIG_S3C_DEV_HSMMC2
 338         s3c_hsmmc2_def_platdata.cfg_gpio = exynos4_setup_sdhci2_cfg_gpio;
 339 #endif
 340 }
 341
 342 static inline void exynos4_default_sdhci3(void)
 343 {
 344 #ifdef CONFIG_S3C_DEV_HSMMC3
 345         s3c_hsmmc3_def_platdata.cfg_gpio = exynos4_setup_sdhci3_cfg_gpio;
 346 #endif
 347 }
 348
 349 #else
 350 static inline void exynos4_default_sdhci0(void) { }
 351 static inline void exynos4_default_sdhci1(void) { }
 352 static inline void exynos4_default_sdhci2(void) { }
 353 static inline void exynos4_default_sdhci3(void) { }
 354
 355 #endif /* CONFIG_EXYNOS4_SETUP_SDHCI */
 356
 357 #endif /* __PLAT_S3C_SDHCI_H */