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 /* 14 * struct omap_mmc_dev_attr.flags possibilities 15 * 16 * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can 17 * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag 18 * should be set if this is the case. See for example Section 22.5.3 19 * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia 20 * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R). 21 * 22 * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers 23 * don't work correctly on some MMC controller instances on some 24 * OMAP3 SoCs; this flag should be set if this is the case. See 25 * for example Advisory 2.1.1.128 "MMC: Multiple Block Read 26 * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_ 27 * Revision F (October 2010) (SPRZ278F). 28 */ 29 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0) 30 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1) 31 32 struct mmc_card; 33 34 struct omap_mmc_dev_attr { 35 u8 flags; 36 }; 37 38 struct omap_mmc_platform_data { 39 /* back-link to device */ 40 struct device *dev; 41 42 /* number of slots per controller */ 43 unsigned nr_slots:2; 44 45 /* set if your board has components or wiring that limits the 46 * maximum frequency on the MMC bus */ 47 unsigned int max_freq; 48 49 /* switch the bus to a new slot */ 50 int (*switch_slot)(struct device *dev, int slot); 51 /* initialize board-specific MMC functionality, can be NULL if 52 * not supported */ 53 int (*init)(struct device *dev); 54 void (*cleanup)(struct device *dev); 55 void (*shutdown)(struct device *dev); 56 57 /* To handle board related suspend/resume functionality for MMC */ 58 int (*suspend)(struct device *dev, int slot); 59 int (*resume)(struct device *dev, int slot); 60 61 /* Return context loss count due to PM states changing */ 62 int (*get_context_loss_count)(struct device *dev); 63 64 /* Integrating attributes from the omap_hwmod layer */ 65 u8 controller_flags; 66 67 /* Register offset deviation */ 68 u16 reg_offset; 69 70 struct omap_mmc_slot_data { 71 72 /* 73 * 4/8 wires and any additional host capabilities 74 * need to OR'd all capabilities (ref. linux/mmc/host.h) 75 */ 76 u8 wires; /* Used for the MMC driver on omap1 and 2420 */ 77 u32 caps; /* Used for the MMC driver on 2430 and later */ 78 u32 pm_caps; /* PM capabilities of the mmc */ 79 80 /* 81 * nomux means "standard" muxing is wrong on this board, and 82 * that board-specific code handled it before common init logic. 83 */ 84 unsigned nomux:1; 85 86 /* switch pin can be for card detect (default) or card cover */ 87 unsigned cover:1; 88 89 /* use the internal clock */ 90 unsigned internal_clock:1; 91 92 /* nonremovable e.g. eMMC */ 93 unsigned nonremovable:1; 94 95 /* Try to sleep or power off when possible */ 96 unsigned power_saving:1; 97 98 /* If using power_saving and the MMC power is not to go off */ 99 unsigned no_off:1; 100 101 /* eMMC does not handle power off when not in sleep state */ 102 unsigned no_regulator_off_init:1; 103 104 /* Regulator off remapped to sleep */ 105 unsigned vcc_aux_disable_is_sleep:1; 106 107 /* we can put the features above into this variable */ 108 #define HSMMC_HAS_PBIAS (1 << 0) 109 #define HSMMC_HAS_UPDATED_RESET (1 << 1) 110 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) 111 #define MMC_OMAP7XX (1 << 3) 112 #define MMC_OMAP15XX (1 << 4) 113 #define MMC_OMAP16XX (1 << 5) 114 unsigned features; 115 116 int switch_pin; /* gpio (card detect) */ 117 int gpio_wp; /* gpio (write protect) */ 118 119 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); 120 int (*set_power)(struct device *dev, int slot, 121 int power_on, int vdd); 122 int (*get_ro)(struct device *dev, int slot); 123 void (*remux)(struct device *dev, int slot, int power_on); 124 /* Call back before enabling / disabling regulators */ 125 void (*before_set_reg)(struct device *dev, int slot, 126 int power_on, int vdd); 127 /* Call back after enabling / disabling regulators */ 128 void (*after_set_reg)(struct device *dev, int slot, 129 int power_on, int vdd); 130 /* if we have special card, init it using this callback */ 131 void (*init_card)(struct mmc_card *card); 132 133 /* return MMC cover switch state, can be NULL if not supported. 134 * 135 * possible return values: 136 * 0 - closed 137 * 1 - open 138 */ 139 int (*get_cover_state)(struct device *dev, int slot); 140 141 const char *name; 142 u32 ocr_mask; 143 144 /* Card detection IRQs */ 145 int card_detect_irq; 146 int (*card_detect)(struct device *dev, int slot); 147 148 unsigned int ban_openended:1; 149 150 } slots[OMAP_MMC_MAX_SLOTS]; 151 }; 152