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