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 /* 12 * struct omap_hsmmc_dev_attr.flags possibilities 13 * 14 * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can 15 * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag 16 * should be set if this is the case. See for example Section 22.5.3 17 * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia 18 * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R). 19 * 20 * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers 21 * don't work correctly on some MMC controller instances on some 22 * OMAP3 SoCs; this flag should be set if this is the case. See 23 * for example Advisory 2.1.1.128 "MMC: Multiple Block Read 24 * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_ 25 * Revision F (October 2010) (SPRZ278F). 26 */ 27 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0) 28 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1) 29 #define OMAP_HSMMC_SWAKEUP_MISSING BIT(2) 30 31 struct omap_hsmmc_dev_attr { 32 u8 flags; 33 }; 34 35 struct mmc_card; 36 37 struct omap_hsmmc_platform_data { 38 /* back-link to device */ 39 struct device *dev; 40 41 /* set if your board has components or wiring that limits the 42 * maximum frequency on the MMC bus */ 43 unsigned int max_freq; 44 45 /* Integrating attributes from the omap_hwmod layer */ 46 u8 controller_flags; 47 48 /* Register offset deviation */ 49 u16 reg_offset; 50 51 /* 52 * 4/8 wires and any additional host capabilities 53 * need to OR'd all capabilities (ref. linux/mmc/host.h) 54 */ 55 u32 caps; /* Used for the MMC driver on 2430 and later */ 56 u32 pm_caps; /* PM capabilities of the mmc */ 57 58 /* nonremovable e.g. eMMC */ 59 unsigned nonremovable:1; 60 61 /* eMMC does not handle power off when not in sleep state */ 62 unsigned no_regulator_off_init:1; 63 64 /* we can put the features above into this variable */ 65 #define HSMMC_HAS_PBIAS (1 << 0) 66 #define HSMMC_HAS_UPDATED_RESET (1 << 1) 67 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) 68 unsigned features; 69 70 /* string specifying a particular variant of hardware */ 71 char *version; 72 73 int gpio_cd; /* gpio (card detect) */ 74 int gpio_cod; /* gpio (cover detect) */ 75 int gpio_wp; /* gpio (write protect) */ 76 /* if we have special card, init it using this callback */ 77 void (*init_card)(struct mmc_card *card); 78 79 const char *name; 80 u32 ocr_mask; 81 }; 82
