1 /* 2 * MMC definitions for OMAP2 3 * 4 * Copyright (C) 2006 Nokia Corporation 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 11 #define OMAP_MMC_MAX_SLOTS 2 12 13 struct mmc_card; 14 15 struct omap_mmc_platform_data { 16 /* back-link to device */ 17 struct device *dev; 18 19 /* number of slots per controller */ 20 unsigned nr_slots:2; 21 22 /* set if your board has components or wiring that limits the 23 * maximum frequency on the MMC bus */ 24 unsigned int max_freq; 25 26 /* switch the bus to a new slot */ 27 int (*switch_slot)(struct device *dev, int slot); 28 /* initialize board-specific MMC functionality, can be NULL if 29 * not supported */ 30 int (*init)(struct device *dev); 31 void (*cleanup)(struct device *dev); 32 void (*shutdown)(struct device *dev); 33 34 /* To handle board related suspend/resume functionality for MMC */ 35 int (*suspend)(struct device *dev, int slot); 36 int (*resume)(struct device *dev, int slot); 37 38 /* Return context loss count due to PM states changing */ 39 int (*get_context_loss_count)(struct device *dev); 40 41 /* Integrating attributes from the omap_hwmod layer */ 42 u8 controller_flags; 43 44 /* Register offset deviation */ 45 u16 reg_offset; 46 47 struct omap_mmc_slot_data { 48 49 /* 50 * 4/8 wires and any additional host capabilities 51 * need to OR'd all capabilities (ref. linux/mmc/host.h) 52 */ 53 u8 wires; /* Used for the MMC driver on omap1 and 2420 */ 54 u32 caps; /* Used for the MMC driver on 2430 and later */ 55 u32 pm_caps; /* PM capabilities of the mmc */ 56 57 /* 58 * nomux means "standard" muxing is wrong on this board, and 59 * that board-specific code handled it before common init logic. 60 */ 61 unsigned nomux:1; 62 63 /* switch pin can be for card detect (default) or card cover */ 64 unsigned cover:1; 65 66 /* use the internal clock */ 67 unsigned internal_clock:1; 68 69 /* nonremovable e.g. eMMC */ 70 unsigned nonremovable:1; 71 72 /* Try to sleep or power off when possible */ 73 unsigned power_saving:1; 74 75 /* If using power_saving and the MMC power is not to go off */ 76 unsigned no_off:1; 77 78 /* eMMC does not handle power off when not in sleep state */ 79 unsigned no_regulator_off_init:1; 80 81 /* Regulator off remapped to sleep */ 82 unsigned vcc_aux_disable_is_sleep:1; 83 84 /* we can put the features above into this variable */ 85 #define MMC_OMAP7XX (1 << 3) 86 #define MMC_OMAP15XX (1 << 4) 87 #define MMC_OMAP16XX (1 << 5) 88 unsigned features; 89 90 int switch_pin; /* gpio (card detect) */ 91 int gpio_wp; /* gpio (write protect) */ 92 93 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); 94 int (*set_power)(struct device *dev, int slot, 95 int power_on, int vdd); 96 int (*get_ro)(struct device *dev, int slot); 97 void (*remux)(struct device *dev, int slot, int power_on); 98 /* Call back before enabling / disabling regulators */ 99 void (*before_set_reg)(struct device *dev, int slot, 100 int power_on, int vdd); 101 /* Call back after enabling / disabling regulators */ 102 void (*after_set_reg)(struct device *dev, int slot, 103 int power_on, int vdd); 104 /* if we have special card, init it using this callback */ 105 void (*init_card)(struct mmc_card *card); 106 107 /* return MMC cover switch state, can be NULL if not supported. 108 * 109 * possible return values: 110 * 0 - closed 111 * 1 - open 112 */ 113 int (*get_cover_state)(struct device *dev, int slot); 114 115 const char *name; 116 u32 ocr_mask; 117 118 /* Card detection IRQs */ 119 int card_detect_irq; 120 int (*card_detect)(struct device *dev, int slot); 121 122 unsigned int ban_openended:1; 123 124 } slots[OMAP_MMC_MAX_SLOTS]; 125 }; 126