diff options
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/sdhci.h')
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/sdhci.h | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h new file mode 100644 index 00000000..e834c5ef --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/sdhci.h @@ -0,0 +1,387 @@ +/* linux/arch/arm/plat-samsung/include/plat/sdhci.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * 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__ + +#include <plat/devs.h> + +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. + * @host_caps2: The second 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 + * + * 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; + unsigned int host_caps2; + unsigned int pm_caps; + enum cd_types cd_type; + enum clk_types clk_type; + + 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); +}; + +/* s3c_sdhci_set_platdata() - common helper for setting SDHCI platform data + * @pd: The default platform data for this device. + * @set: Pointer to the platform data to fill in. + */ +extern void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd, + struct s3c_sdhci_platdata *set); + +/** + * 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 availability */ + +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 exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w); +extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w); +extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w); +extern void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *, int w); +extern void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *, int w); +extern void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *, int w); +extern void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *, int w); + +/* S3C2416 SDHCI setup */ + +#ifdef CONFIG_S3C2416_SETUP_SDHCI +static inline void s3c2416_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio; +#endif /* CONFIG_S3C_DEV_HSMMC */ +} + +static inline void s3c2416_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio; +#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 +static inline void s3c6400_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void s3c6400_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void s3c6400_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio; +#endif +} + +static inline void s3c6410_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void s3c6410_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void s3c6410_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio; +#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 */ + +/* S5P64X0 SDHCI setup */ + +#ifdef CONFIG_S5P64X0_SETUP_SDHCI +static inline void s5p64x0_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s5p64x0_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void s5p64x0_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s5p64x0_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void s5p6440_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s5p6440_setup_sdhci2_cfg_gpio; +#endif +} + +static inline void s5p6450_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s5p6450_setup_sdhci2_cfg_gpio; +#endif +} + +#else +static inline void s5p64x0_default_sdhci0(void) { } +static inline void s5p64x0_default_sdhci1(void) { } +static inline void s5p6440_default_sdhci2(void) { } +static inline void s5p6450_default_sdhci2(void) { } + +#endif /* CONFIG_S5P64X0_SETUP_SDHCI */ + +/* S5PC100 SDHCI setup */ + +#ifdef CONFIG_S5PC100_SETUP_SDHCI +static inline void s5pc100_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void s5pc100_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void s5pc100_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio; +#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 +static inline void s5pv210_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void s5pv210_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void s5pv210_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio; +#endif +} + +static inline void s5pv210_default_sdhci3(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC3 + s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio; +#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 */ + +/* EXYNOS4 SDHCI setup */ +#ifdef CONFIG_EXYNOS4_SETUP_SDHCI +static inline void exynos4_default_sdhci0(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC + s3c_hsmmc0_def_platdata.cfg_gpio = exynos4_setup_sdhci0_cfg_gpio; +#endif +} + +static inline void exynos4_default_sdhci1(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC1 + s3c_hsmmc1_def_platdata.cfg_gpio = exynos4_setup_sdhci1_cfg_gpio; +#endif +} + +static inline void exynos4_default_sdhci2(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC2 + s3c_hsmmc2_def_platdata.cfg_gpio = exynos4_setup_sdhci2_cfg_gpio; +#endif +} + +static inline void exynos4_default_sdhci3(void) +{ +#ifdef CONFIG_S3C_DEV_HSMMC3 + s3c_hsmmc3_def_platdata.cfg_gpio = exynos4_setup_sdhci3_cfg_gpio; +#endif +} + +#else +static inline void exynos4_default_sdhci0(void) { } +static inline void exynos4_default_sdhci1(void) { } +static inline void exynos4_default_sdhci2(void) { } +static inline void exynos4_default_sdhci3(void) { } + +#endif /* CONFIG_EXYNOS4_SETUP_SDHCI */ + +static inline void s3c_sdhci_setname(int id, char *name) +{ + switch (id) { +#ifdef CONFIG_S3C_DEV_HSMMC + case 0: + s3c_device_hsmmc0.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC1 + case 1: + s3c_device_hsmmc1.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC2 + case 2: + s3c_device_hsmmc2.name = name; + break; +#endif +#ifdef CONFIG_S3C_DEV_HSMMC3 + case 3: + s3c_device_hsmmc3.name = name; + break; +#endif + } +} + +#endif /* __PLAT_S3C_SDHCI_H */ |