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 #define OMAP_HSMMC_SWAKEUP_MISSING BIT(2) 32 33 struct mmc_card; 34 35 struct omap_mmc_dev_attr { 36 u8 flags; 37 }; 38 39 struct omap_mmc_platform_data { 40 /* back-link to device */ 41 struct device *dev; 42 43 /* number of slots per controller */ 44 unsigned nr_slots:2; 45 46 /* set if your board has components or wiring that limits the 47 * maximum frequency on the MMC bus */ 48 unsigned int max_freq; 49 50 /* switch the bus to a new slot */ 51 int (*switch_slot)(struct device *dev, int slot); 52 /* initialize board-specific MMC functionality, can be NULL if 53 * not supported */ 54 int (*init)(struct device *dev); 55 void (*cleanup)(struct device *dev); 56 void (*shutdown)(struct device *dev); 57 58 /* To handle board related suspend/resume functionality for MMC */ 59 int (*suspend)(struct device *dev, int slot); 60 int (*resume)(struct device *dev, int slot); 61 62 /* Return context loss count due to PM states changing */ 63 int (*get_context_loss_count)(struct device *dev); 64 65 /* Integrating attributes from the omap_hwmod layer */ 66 u8 controller_flags; 67 68 /* Register offset deviation */ 69 u16 reg_offset; 70 71 struct omap_mmc_slot_data { 72 73 /* 74 * 4/8 wires and any additional host capabilities 75 * need to OR'd all capabilities (ref. linux/mmc/host.h) 76 */ 77 u8 wires; /* Used for the MMC driver on omap1 and 2420 */ 78 u32 caps; /* Used for the MMC driver on 2430 and later */ 79 u32 pm_caps; /* PM capabilities of the mmc */ 80 81 /* 82 * nomux means "standard" muxing is wrong on this board, and 83 * that board-specific code handled it before common init logic. 84 */ 85 unsigned nomux:1; 86 87 /* switch pin can be for card detect (default) or card cover */ 88 unsigned cover:1; 89 90 /* use the internal clock */ 91 unsigned internal_clock:1; 92 93 /* nonremovable e.g. eMMC */ 94 unsigned nonremovable:1; 95 96 /* Try to sleep or power off when possible */ 97 unsigned power_saving:1; 98 99 /* If using power_saving and the MMC power is not to go off */ 100 unsigned no_off:1; 101 102 /* eMMC does not handle power off when not in sleep state */ 103 unsigned no_regulator_off_init:1; 104 105 /* Regulator off remapped to sleep */ 106 unsigned vcc_aux_disable_is_sleep:1; 107 108 /* we can put the features above into this variable */ 109 #define HSMMC_HAS_PBIAS (1 << 0) 110 #define HSMMC_HAS_UPDATED_RESET (1 << 1) 111 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) 112 #define MMC_OMAP7XX (1 << 3) 113 #define MMC_OMAP15XX (1 << 4) 114 #define MMC_OMAP16XX (1 << 5) 115 unsigned features; 116 117 int switch_pin; /* gpio (card detect) */ 118 int gpio_wp; /* gpio (write protect) */ 119 120 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); 121 int (*set_power)(struct device *dev, int slot, 122 int power_on, int vdd); 123 int (*get_ro)(struct device *dev, int slot); 124 void (*remux)(struct device *dev, int slot, int power_on); 125 /* Call back before enabling / disabling regulators */ 126 void (*before_set_reg)(struct device *dev, int slot, 127 int power_on, int vdd); 128 /* Call back after enabling / disabling regulators */ 129 void (*after_set_reg)(struct device *dev, int slot, 130 int power_on, int vdd); 131 /* if we have special card, init it using this callback */ 132 void (*init_card)(struct mmc_card *card); 133 134 /* return MMC cover switch state, can be NULL if not supported. 135 * 136 * possible return values: 137 * 0 - closed 138 * 1 - open 139 */ 140 int (*get_cover_state)(struct device *dev, int slot); 141 142 const char *name; 143 u32 ocr_mask; 144 145 /* Card detection IRQs */ 146 int card_detect_irq; 147 int (*card_detect)(struct device *dev, int slot); 148 149 unsigned int ban_openended:1; 150 151 } slots[OMAP_MMC_MAX_SLOTS]; 152 }; 153