diff options
Diffstat (limited to 'kernel/include/linux/platform_data/mmc-omap.h')
-rw-r--r-- | kernel/include/linux/platform_data/mmc-omap.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/kernel/include/linux/platform_data/mmc-omap.h b/kernel/include/linux/platform_data/mmc-omap.h new file mode 100644 index 000000000..929469291 --- /dev/null +++ b/kernel/include/linux/platform_data/mmc-omap.h @@ -0,0 +1,121 @@ +/* + * 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. + */ + +#define OMAP_MMC_MAX_SLOTS 2 + +struct mmc_card; + +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); + + /* Return context loss count due to PM states changing */ + int (*get_context_loss_count)(struct device *dev); + + /* Integrating attributes from the omap_hwmod layer */ + u8 controller_flags; + + /* Register offset deviation */ + u16 reg_offset; + + struct omap_mmc_slot_data { + + /* + * 4/8 wires and any additional host capabilities + * need to OR'd all capabilities (ref. linux/mmc/host.h) + */ + u8 wires; /* Used for the MMC driver on omap1 and 2420 */ + u32 caps; /* Used for the MMC driver on 2430 and later */ + u32 pm_caps; /* PM capabilities of the mmc */ + + /* + * 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; + + /* If using power_saving and the MMC power is not to go off */ + unsigned no_off:1; + + /* eMMC does not handle power off when not in sleep state */ + unsigned no_regulator_off_init:1; + + /* Regulator off remapped to sleep */ + unsigned vcc_aux_disable_is_sleep:1; + + /* we can put the features above into this variable */ +#define MMC_OMAP7XX (1 << 3) +#define MMC_OMAP15XX (1 << 4) +#define MMC_OMAP16XX (1 << 5) + unsigned features; + + 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); + void (*remux)(struct device *dev, int slot, int power_on); + /* Call back before enabling / disabling regulators */ + void (*before_set_reg)(struct device *dev, int slot, + int power_on, int vdd); + /* Call back after enabling / disabling regulators */ + void (*after_set_reg)(struct device *dev, int slot, + int power_on, int vdd); + /* if we have special card, init it using this callback */ + void (*init_card)(struct mmc_card *card); + + /* 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)(struct device *dev, int slot); + + unsigned int ban_openended:1; + + } slots[OMAP_MMC_MAX_SLOTS]; +}; |