/* linux/arch/arm/plat-s3c/include/plat/sdhci.h * * Copyright 2008 Openmoko, Inc. * Copyright 2008 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks * * 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 */ }; /** * 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) * @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. */ struct s3c_sdhci_platdata { unsigned int max_width; unsigned int host_caps; enum cd_types cd_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 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); /* 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 } #else static inline void s5pv210_default_sdhci0(void) { } static inline void s5pv210_default_sdhci1(void) { } static inline void s5pv210_default_sdhci2(void) { } #endif /* CONFIG_S5PV210_SETUP_SDHCI */ #endif /* __PLAT_S3C_SDHCI_H */