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linux-next/arch/arm/plat-samsung/include/plat/sdhci.h
Yauhen Kharuzhy c29cfa6d3e ARM: S3C2416: Add platform helpers for setup SDHCI 
Samsung S3C2416 has two SDHCI controllers compatible with other
Samsung's SoCs (S3C64XX, S5PC100 etc...).

Add required platform setup code that the devices can be used with
sdhci-s3c driver.

Signed-off-by: Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
[kgene.kim@samsung.com: change to __raw_{readl,writel} from {readl,writel}]
[kgene.kim@samsung.com: build error fixes]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2011-01-06 14:09:18 +09:00

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/* 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.
*/
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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