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_HSMMC_MAX_SLOTS 1 12 13 /* 14 * struct omap_hsmmc_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 omap_hsmmc_dev_attr { 34 u8 flags; 35 }; 36 37 struct mmc_card; 38 39 struct omap_hsmmc_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 /* To handle board related suspend/resume functionality for MMC */ 51 int (*suspend)(struct device *dev, int slot); 52 int (*resume)(struct device *dev, int slot); 53 54 /* Return context loss count due to PM states changing */ 55 int (*get_context_loss_count)(struct device *dev); 56 57 /* Integrating attributes from the omap_hwmod layer */ 58 u8 controller_flags; 59 60 /* Register offset deviation */ 61 u16 reg_offset; 62 63 struct omap_hsmmc_slot_data { 64 /* 65 * 4/8 wires and any additional host capabilities 66 * need to OR'd all capabilities (ref. linux/mmc/host.h) 67 */ 68 u32 caps; /* Used for the MMC driver on 2430 and later */ 69 u32 pm_caps; /* PM capabilities of the mmc */ 70 71 /* switch pin can be for card detect (default) or card cover */ 72 unsigned cover:1; 73 74 /* use the internal clock */ 75 unsigned internal_clock:1; 76 77 /* nonremovable e.g. eMMC */ 78 unsigned nonremovable:1; 79 80 /* eMMC does not handle power off when not in sleep state */ 81 unsigned no_regulator_off_init:1; 82 83 /* we can put the features above into this variable */ 84 #define HSMMC_HAS_PBIAS (1 << 0) 85 #define HSMMC_HAS_UPDATED_RESET (1 << 1) 86 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) 87 unsigned features; 88 89 int switch_pin; /* gpio (card detect) */ 90 int gpio_wp; /* gpio (write protect) */ 91 92 int (*set_power)(struct device *dev, int slot, 93 int power_on, int vdd); 94 int (*get_ro)(struct device *dev, int slot); 95 void (*remux)(struct device *dev, int slot, int power_on); 96 /* Call back before enabling / disabling regulators */ 97 void (*before_set_reg)(struct device *dev, int slot, 98 int power_on, int vdd); 99 /* Call back after enabling / disabling regulators */ 100 void (*after_set_reg)(struct device *dev, int slot, 101 int power_on, int vdd); 102 /* if we have special card, init it using this callback */ 103 void (*init_card)(struct mmc_card *card); 104 105 /* return MMC cover switch state, can be NULL if not supported. 106 * 107 * possible return values: 108 * 0 - closed 109 * 1 - open 110 */ 111 int (*get_cover_state)(struct device *dev, int slot); 112 113 const char *name; 114 u32 ocr_mask; 115 116 /* Card detection IRQs */ 117 int card_detect_irq; 118 119 int (*card_detect)(struct device *dev, int slot); 120 } slots[OMAP_HSMMC_MAX_SLOTS]; 121 }; 122