diff options
Diffstat (limited to 'arch/arm/plat-omap/include/plat/mmc.h')
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mmc.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h new file mode 100644 index 000000000000..29937137bf3e --- /dev/null +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -0,0 +1,157 @@ +/* + * MMC definitions for OMAP2 + * + * Copyright (C) 2006 Nokia Corporation + * + * 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 __OMAP2_MMC_H +#define __OMAP2_MMC_H + +#include <linux/types.h> +#include <linux/device.h> +#include <linux/mmc/host.h> + +#include <plat/board.h> + +#define OMAP15XX_NR_MMC 1 +#define OMAP16XX_NR_MMC 2 +#define OMAP1_MMC_SIZE 0x080 +#define OMAP1_MMC1_BASE 0xfffb7800 +#define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */ + +#define OMAP24XX_NR_MMC 2 +#define OMAP34XX_NR_MMC 3 +#define OMAP44XX_NR_MMC 5 +#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE +#define OMAP3_HSMMC_SIZE 0x200 +#define OMAP4_HSMMC_SIZE 0x1000 +#define OMAP2_MMC1_BASE 0x4809c000 +#define OMAP2_MMC2_BASE 0x480b4000 +#define OMAP3_MMC3_BASE 0x480ad000 +#define OMAP4_MMC4_BASE 0x480d1000 +#define OMAP4_MMC5_BASE 0x480d5000 +#define OMAP4_MMC_REG_OFFSET 0x100 +#define HSMMC5 (1 << 4) +#define HSMMC4 (1 << 3) +#define HSMMC3 (1 << 2) +#define HSMMC2 (1 << 1) +#define HSMMC1 (1 << 0) + +#define OMAP_MMC_MAX_SLOTS 2 + +struct omap_mmc_platform_data { + /* back-link to device */ + struct device *dev; + + /* number of slots per controller */ + unsigned nr_slots:2; + + /* set if your board has components or wiring that limits the + * maximum frequency on the MMC bus */ + unsigned int max_freq; + + /* switch the bus to a new slot */ + int (* switch_slot)(struct device *dev, int slot); + /* initialize board-specific MMC functionality, can be NULL if + * not supported */ + int (* init)(struct device *dev); + void (* cleanup)(struct device *dev); + void (* shutdown)(struct device *dev); + + /* To handle board related suspend/resume functionality for MMC */ + int (*suspend)(struct device *dev, int slot); + int (*resume)(struct device *dev, int slot); + + /* Return context loss count due to PM states changing */ + int (*get_context_loss_count)(struct device *dev); + + u64 dma_mask; + + struct omap_mmc_slot_data { + + /* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC; + * 8 wire signaling is also optional, and is used with HSMMC + */ + u8 wires; + + /* + * nomux means "standard" muxing is wrong on this board, and + * that board-specific code handled it before common init logic. + */ + unsigned nomux:1; + + /* switch pin can be for card detect (default) or card cover */ + unsigned cover:1; + + /* use the internal clock */ + unsigned internal_clock:1; + + /* nonremovable e.g. eMMC */ + unsigned nonremovable:1; + + /* Try to sleep or power off when possible */ + unsigned power_saving:1; + + int switch_pin; /* gpio (card detect) */ + int gpio_wp; /* gpio (write protect) */ + + int (* set_bus_mode)(struct device *dev, int slot, int bus_mode); + int (* set_power)(struct device *dev, int slot, int power_on, int vdd); + int (* get_ro)(struct device *dev, int slot); + int (*set_sleep)(struct device *dev, int slot, int sleep, + int vdd, int cardsleep); + + /* return MMC cover switch state, can be NULL if not supported. + * + * possible return values: + * 0 - closed + * 1 - open + */ + int (* get_cover_state)(struct device *dev, int slot); + + const char *name; + u32 ocr_mask; + + /* Card detection IRQs */ + int card_detect_irq; + int (* card_detect)(int irq); + + unsigned int ban_openended:1; + + } slots[OMAP_MMC_MAX_SLOTS]; +}; + +/* called from board-specific card detection service routine */ +extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed); + +#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ + defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) +void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, + int nr_controllers); +void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data, + int nr_controllers); +int omap_mmc_add(const char *name, int id, unsigned long base, + unsigned long size, unsigned int irq, + struct omap_mmc_platform_data *data); +#else +static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, + int nr_controllers) +{ +} +static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data, + int nr_controllers) +{ +} +static inline int omap_mmc_add(const char *name, int id, unsigned long base, + unsigned long size, unsigned int irq, + struct omap_mmc_platform_data *data) +{ + return 0; +} + +#endif +#endif |
