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sdhci.h

/* linux/arch/arm/plat-s3c/include/plat/sdhci.h
 *
 * Copyright 2008 Openmoko, Inc.
 * Copyright 2008 Simtec Electronics
 *    http://armlinux.simtec.co.uk/
 *    Ben Dooks <ben@simtec.co.uk>
 *
 * S3C Platform - SDHCI (HSMMC) platform data definitions
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#ifndef __PLAT_S3C_SDHCI_H
#define __PLAT_S3C_SDHCI_H __FILE__

struct platform_device;
struct mmc_host;
struct mmc_card;
struct mmc_ios;

enum cd_types {
      S3C_SDHCI_CD_INTERNAL,  /* use mmc internal CD line */
      S3C_SDHCI_CD_EXTERNAL,  /* use external callback */
      S3C_SDHCI_CD_GPIO,      /* use external gpio pin for CD line */
      S3C_SDHCI_CD_NONE,      /* no CD line, use polling to detect card */
      S3C_SDHCI_CD_PERMANENT, /* no CD line, card permanently wired to host */
};

enum clk_types {
      S3C_SDHCI_CLK_DIV_INTERNAL,   /* use mmc internal clock divider */
      S3C_SDHCI_CLK_DIV_EXTERNAL,   /* use external clock divider */
};

/**
 * struct s3c_sdhci_platdata() - Platform device data for Samsung SDHCI
 * @max_width: The maximum number of data bits supported.
 * @host_caps: Standard MMC host capabilities bit field.
 * @cd_type: Type of Card Detection method (see cd_types enum above)
 * @clk_type: Type of clock divider method (see clk_types enum above)
 * @ext_cd_init: Initialize external card detect subsystem. Called on
 *           sdhci-s3c driver probe when cd_type == S3C_SDHCI_CD_EXTERNAL.
 *           notify_func argument is a callback to the sdhci-s3c driver
 *           that triggers the card detection event. Callback arguments:
 *           dev is pointer to platform device of the host controller,
 *           state is new state of the card (0 - removed, 1 - inserted).
 * @ext_cd_cleanup: Cleanup external card detect subsystem. Called on
 *           sdhci-s3c driver remove when cd_type == S3C_SDHCI_CD_EXTERNAL.
 *           notify_func argument is the same callback as for ext_cd_init.
 * @ext_cd_gpio: gpio pin used for external CD line, valid only if
 *           cd_type == S3C_SDHCI_CD_GPIO
 * @ext_cd_gpio_invert: invert values for external CD gpio line
 * @cfg_gpio: Configure the GPIO for a specific card bit-width
 * @cfg_card: Configure the interface for a specific card and speed. This
 *            is necessary the controllers and/or GPIO blocks require the
 *          changing of driver-strength and other controls dependant on
 *          the card and speed of operation.
 *
 * Initialisation data specific to either the machine or the platform
 * for the device driver to use or call-back when configuring gpio or
 * card speed information.
*/
00064 struct s3c_sdhci_platdata {
      unsigned int      max_width;
      unsigned int      host_caps;
      enum cd_types     cd_type;
      enum clk_types    clk_type;

      char        **clocks;   /* set of clock sources */

      int         ext_cd_gpio;
      bool        ext_cd_gpio_invert;
      int   (*ext_cd_init)(void (*notify_func)(struct platform_device *,
                                       int state));
      int   (*ext_cd_cleanup)(void (*notify_func)(struct platform_device *,
                                          int state));

      void  (*cfg_gpio)(struct platform_device *dev, int width);
      void  (*cfg_card)(struct platform_device *dev,
                      void __iomem *regbase,
                      struct mmc_ios *ios,
                      struct mmc_card *card);
};

/**
 * s3c_sdhci0_set_platdata - Set platform data for S3C SDHCI device.
 * @pd: Platform data to register to device.
 *
 * Register the given platform data for use withe S3C SDHCI device.
 * The call will copy the platform data, so the board definitions can
 * make the structure itself __initdata.
 */
extern void s3c_sdhci0_set_platdata(struct s3c_sdhci_platdata *pd);
extern void s3c_sdhci1_set_platdata(struct s3c_sdhci_platdata *pd);
extern void s3c_sdhci2_set_platdata(struct s3c_sdhci_platdata *pd);
extern void s3c_sdhci3_set_platdata(struct s3c_sdhci_platdata *pd);

/* Default platform data, exported so that per-cpu initialisation can
 * set the correct one when there are more than one cpu type selected.
*/

extern struct s3c_sdhci_platdata s3c_hsmmc0_def_platdata;
extern struct s3c_sdhci_platdata s3c_hsmmc1_def_platdata;
extern struct s3c_sdhci_platdata s3c_hsmmc2_def_platdata;
extern struct s3c_sdhci_platdata s3c_hsmmc3_def_platdata;

/* Helper function availablity */

extern void s3c2416_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s3c2416_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pc100_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5pc100_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pc100_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s3c64xx_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s5pv210_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
extern void s5pv310_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
extern void s5pv310_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
extern void s5pv310_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
extern void s5pv310_setup_sdhci3_cfg_gpio(struct platform_device *, int w);

/* S3C2416 SDHCI setup */

#ifdef CONFIG_S3C2416_SETUP_SDHCI
extern char *s3c2416_hsmmc_clksrcs[4];

extern void s3c2416_setup_sdhci_cfg_card(struct platform_device *dev,
                                 void __iomem *r,
                                 struct mmc_ios *ios,
                                 struct mmc_card *card);

static inline void s3c2416_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s3c2416_setup_sdhci_cfg_card;
#endif /* CONFIG_S3C_DEV_HSMMC */
}

static inline void s3c2416_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s3c2416_setup_sdhci_cfg_card;
#endif /* CONFIG_S3C_DEV_HSMMC1 */
}

#else
static inline void s3c2416_default_sdhci0(void) { }
static inline void s3c2416_default_sdhci1(void) { }

#endif /* CONFIG_S3C2416_SETUP_SDHCI */
/* S3C64XX SDHCI setup */

#ifdef CONFIG_S3C64XX_SETUP_SDHCI
extern char *s3c64xx_hsmmc_clksrcs[4];

extern void s3c6400_setup_sdhci_cfg_card(struct platform_device *dev,
                               void __iomem *r,
                               struct mmc_ios *ios,
                               struct mmc_card *card);

static inline void s3c6400_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
#endif
}

static inline void s3c6400_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
#endif
}

static inline void s3c6400_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
      s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
      s3c_hsmmc2_def_platdata.cfg_card = s3c6400_setup_sdhci_cfg_card;
#endif
}

extern void s3c6410_setup_sdhci_cfg_card(struct platform_device *dev,
                               void __iomem *r,
                               struct mmc_ios *ios,
                               struct mmc_card *card);

static inline void s3c6410_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
#endif
}

static inline void s3c6410_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
#endif
}

static inline void s3c6410_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
      s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
      s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
      s3c_hsmmc2_def_platdata.cfg_card = s3c6410_setup_sdhci_cfg_card;
#endif
}

#else
static inline void s3c6410_default_sdhci0(void) { }
static inline void s3c6410_default_sdhci1(void) { }
static inline void s3c6410_default_sdhci2(void) { }
static inline void s3c6400_default_sdhci0(void) { }
static inline void s3c6400_default_sdhci1(void) { }
static inline void s3c6400_default_sdhci2(void) { }

#endif /* CONFIG_S3C64XX_SETUP_SDHCI */

/* S5PC100 SDHCI setup */

#ifdef CONFIG_S5PC100_SETUP_SDHCI
extern char *s5pc100_hsmmc_clksrcs[4];

extern void s5pc100_setup_sdhci0_cfg_card(struct platform_device *dev,
                                 void __iomem *r,
                                 struct mmc_ios *ios,
                                 struct mmc_card *card);

static inline void s5pc100_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
#endif
}

static inline void s5pc100_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
#endif
}

static inline void s5pc100_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
      s3c_hsmmc2_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
      s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio;
      s3c_hsmmc2_def_platdata.cfg_card = s5pc100_setup_sdhci0_cfg_card;
#endif
}

#else
static inline void s5pc100_default_sdhci0(void) { }
static inline void s5pc100_default_sdhci1(void) { }
static inline void s5pc100_default_sdhci2(void) { }

#endif /* CONFIG_S5PC100_SETUP_SDHCI */

/* S5PV210 SDHCI setup */

#ifdef CONFIG_S5PV210_SETUP_SDHCI
extern char *s5pv210_hsmmc_clksrcs[4];

extern void s5pv210_setup_sdhci_cfg_card(struct platform_device *dev,
                                 void __iomem *r,
                                 struct mmc_ios *ios,
                                 struct mmc_card *card);

static inline void s5pv210_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv210_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv210_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
      s3c_hsmmc2_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
      s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
      s3c_hsmmc2_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv210_default_sdhci3(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC3
      s3c_hsmmc3_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
      s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
      s3c_hsmmc3_def_platdata.cfg_card = s5pv210_setup_sdhci_cfg_card;
#endif
}

#else
static inline void s5pv210_default_sdhci0(void) { }
static inline void s5pv210_default_sdhci1(void) { }
static inline void s5pv210_default_sdhci2(void) { }
static inline void s5pv210_default_sdhci3(void) { }

#endif /* CONFIG_S5PV210_SETUP_SDHCI */

/* S5PV310 SDHCI setup */
#ifdef CONFIG_S5PV310_SETUP_SDHCI
extern char *s5pv310_hsmmc_clksrcs[4];

extern void s5pv310_setup_sdhci_cfg_card(struct platform_device *dev,
                                 void __iomem *r,
                                 struct mmc_ios *ios,
                                 struct mmc_card *card);

static inline void s5pv310_default_sdhci0(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC
      s3c_hsmmc0_def_platdata.clocks = s5pv310_hsmmc_clksrcs;
      s3c_hsmmc0_def_platdata.cfg_gpio = s5pv310_setup_sdhci0_cfg_gpio;
      s3c_hsmmc0_def_platdata.cfg_card = s5pv310_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv310_default_sdhci1(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC1
      s3c_hsmmc1_def_platdata.clocks = s5pv310_hsmmc_clksrcs;
      s3c_hsmmc1_def_platdata.cfg_gpio = s5pv310_setup_sdhci1_cfg_gpio;
      s3c_hsmmc1_def_platdata.cfg_card = s5pv310_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv310_default_sdhci2(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC2
      s3c_hsmmc2_def_platdata.clocks = s5pv310_hsmmc_clksrcs;
      s3c_hsmmc2_def_platdata.cfg_gpio = s5pv310_setup_sdhci2_cfg_gpio;
      s3c_hsmmc2_def_platdata.cfg_card = s5pv310_setup_sdhci_cfg_card;
#endif
}

static inline void s5pv310_default_sdhci3(void)
{
#ifdef CONFIG_S3C_DEV_HSMMC3
      s3c_hsmmc3_def_platdata.clocks = s5pv310_hsmmc_clksrcs;
      s3c_hsmmc3_def_platdata.cfg_gpio = s5pv310_setup_sdhci3_cfg_gpio;
      s3c_hsmmc3_def_platdata.cfg_card = s5pv310_setup_sdhci_cfg_card;
#endif
}

#else
static inline void s5pv310_default_sdhci0(void) { }
static inline void s5pv310_default_sdhci1(void) { }
static inline void s5pv310_default_sdhci2(void) { }
static inline void s5pv310_default_sdhci3(void) { }

#endif /* CONFIG_S5PV310_SETUP_SDHCI */

#endif /* __PLAT_S3C_SDHCI_H */

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