1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * MMC definitions for OMAP2 4 * 5 * Copyright (C) 2006 Nokia Corporation 6 */ 7 8 #define OMAP_MMC_MAX_SLOTS 2 9 10 struct mmc_card; 11 12 struct omap_mmc_platform_data { 13 /* back-link to device */ 14 struct device *dev; 15 16 /* number of slots per controller */ 17 unsigned nr_slots:2; 18 19 /* set if your board has components or wiring that limits the 20 * maximum frequency on the MMC bus */ 21 unsigned int max_freq; 22 23 /* switch the bus to a new slot */ 24 int (*switch_slot)(struct device *dev, int slot); 25 /* initialize board-specific MMC functionality, can be NULL if 26 * not supported */ 27 int (*init)(struct device *dev); 28 void (*cleanup)(struct device *dev); 29 void (*shutdown)(struct device *dev); 30 31 /* Return context loss count due to PM states changing */ 32 int (*get_context_loss_count)(struct device *dev); 33 34 /* Integrating attributes from the omap_hwmod layer */ 35 u8 controller_flags; 36 37 /* Register offset deviation */ 38 u16 reg_offset; 39 40 struct omap_mmc_slot_data { 41 42 /* 43 * 4/8 wires and any additional host capabilities 44 * need to OR'd all capabilities (ref. linux/mmc/host.h) 45 */ 46 u8 wires; /* Used for the MMC driver on omap1 and 2420 */ 47 u32 caps; /* Used for the MMC driver on 2430 and later */ 48 u32 pm_caps; /* PM capabilities of the mmc */ 49 50 /* 51 * nomux means "standard" muxing is wrong on this board, and 52 * that board-specific code handled it before common init logic. 53 */ 54 unsigned nomux:1; 55 56 /* switch pin can be for card detect (default) or card cover */ 57 unsigned cover:1; 58 59 /* use the internal clock */ 60 unsigned internal_clock:1; 61 62 /* nonremovable e.g. eMMC */ 63 unsigned nonremovable:1; 64 65 /* Try to sleep or power off when possible */ 66 unsigned power_saving:1; 67 68 /* If using power_saving and the MMC power is not to go off */ 69 unsigned no_off:1; 70 71 /* eMMC does not handle power off when not in sleep state */ 72 unsigned no_regulator_off_init:1; 73 74 /* Regulator off remapped to sleep */ 75 unsigned vcc_aux_disable_is_sleep:1; 76 77 /* we can put the features above into this variable */ 78 #define MMC_OMAP7XX (1 << 3) 79 #define MMC_OMAP15XX (1 << 4) 80 #define MMC_OMAP16XX (1 << 5) 81 unsigned features; 82 83 int switch_pin; /* gpio (card detect) */ 84 int gpio_wp; /* gpio (write protect) */ 85 86 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); 87 int (*set_power)(struct device *dev, int slot, 88 int power_on, int vdd); 89 int (*get_ro)(struct device *dev, int slot); 90 void (*remux)(struct device *dev, int slot, int power_on); 91 /* Call back before enabling / disabling regulators */ 92 void (*before_set_reg)(struct device *dev, int slot, 93 int power_on, int vdd); 94 /* Call back after enabling / disabling regulators */ 95 void (*after_set_reg)(struct device *dev, int slot, 96 int power_on, int vdd); 97 /* if we have special card, init it using this callback */ 98 void (*init_card)(struct mmc_card *card); 99 100 /* return MMC cover switch state, can be NULL if not supported. 101 * 102 * possible return values: 103 * 0 - closed 104 * 1 - open 105 */ 106 int (*get_cover_state)(struct device *dev, int slot); 107 108 const char *name; 109 u32 ocr_mask; 110 111 /* Card detection IRQs */ 112 int card_detect_irq; 113 int (*card_detect)(struct device *dev, int slot); 114 115 unsigned int ban_openended:1; 116 117 } slots[OMAP_MMC_MAX_SLOTS]; 118 }; 119
