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 /* Return context loss count due to PM states changing */ 35 int (*get_context_loss_count)(struct device *dev); 36 37 /* Integrating attributes from the omap_hwmod layer */ 38 u8 controller_flags; 39 40 /* Register offset deviation */ 41 u16 reg_offset; 42 43 struct omap_mmc_slot_data { 44 45 /* 46 * 4/8 wires and any additional host capabilities 47 * need to OR'd all capabilities (ref. linux/mmc/host.h) 48 */ 49 u8 wires; /* Used for the MMC driver on omap1 and 2420 */ 50 u32 caps; /* Used for the MMC driver on 2430 and later */ 51 u32 pm_caps; /* PM capabilities of the mmc */ 52 53 /* 54 * nomux means "standard" muxing is wrong on this board, and 55 * that board-specific code handled it before common init logic. 56 */ 57 unsigned nomux:1; 58 59 /* switch pin can be for card detect (default) or card cover */ 60 unsigned cover:1; 61 62 /* use the internal clock */ 63 unsigned internal_clock:1; 64 65 /* nonremovable e.g. eMMC */ 66 unsigned nonremovable:1; 67 68 /* Try to sleep or power off when possible */ 69 unsigned power_saving:1; 70 71 /* If using power_saving and the MMC power is not to go off */ 72 unsigned no_off:1; 73 74 /* eMMC does not handle power off when not in sleep state */ 75 unsigned no_regulator_off_init:1; 76 77 /* Regulator off remapped to sleep */ 78 unsigned vcc_aux_disable_is_sleep:1; 79 80 /* we can put the features above into this variable */ 81 #define MMC_OMAP7XX (1 << 3) 82 #define MMC_OMAP15XX (1 << 4) 83 #define MMC_OMAP16XX (1 << 5) 84 unsigned features; 85 86 int switch_pin; /* gpio (card detect) */ 87 int gpio_wp; /* gpio (write protect) */ 88 89 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); 90 int (*set_power)(struct device *dev, int slot, 91 int power_on, int vdd); 92 int (*get_ro)(struct device *dev, int slot); 93 void (*remux)(struct device *dev, int slot, int power_on); 94 /* Call back before enabling / disabling regulators */ 95 void (*before_set_reg)(struct device *dev, int slot, 96 int power_on, int vdd); 97 /* Call back after enabling / disabling regulators */ 98 void (*after_set_reg)(struct device *dev, int slot, 99 int power_on, int vdd); 100 /* if we have special card, init it using this callback */ 101 void (*init_card)(struct mmc_card *card); 102 103 /* return MMC cover switch state, can be NULL if not supported. 104 * 105 * possible return values: 106 * 0 - closed 107 * 1 - open 108 */ 109 int (*get_cover_state)(struct device *dev, int slot); 110 111 const char *name; 112 u32 ocr_mask; 113 114 /* Card detection IRQs */ 115 int card_detect_irq; 116 int (*card_detect)(struct device *dev, int slot); 117 118 unsigned int ban_openended:1; 119 120 } slots[OMAP_MMC_MAX_SLOTS]; 121 }; 122
