1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * MMC definitions for OMAP2 4 * 5 * Copyright (C) 2006 Nokia Corporation 6 */ 7 8 /* 9 * struct omap_hsmmc_dev_attr.flags possibilities 10 * 11 * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can 12 * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag 13 * should be set if this is the case. See for example Section 22.5.3 14 * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia 15 * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R). 16 * 17 * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers 18 * don't work correctly on some MMC controller instances on some 19 * OMAP3 SoCs; this flag should be set if this is the case. See 20 * for example Advisory 2.1.1.128 "MMC: Multiple Block Read 21 * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_ 22 * Revision F (October 2010) (SPRZ278F). 23 */ 24 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0) 25 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1) 26 #define OMAP_HSMMC_SWAKEUP_MISSING BIT(2) 27 28 struct omap_hsmmc_dev_attr { 29 u8 flags; 30 }; 31 32 struct mmc_card; 33 34 struct omap_hsmmc_platform_data { 35 /* back-link to device */ 36 struct device *dev; 37 38 /* set if your board has components or wiring that limits the 39 * maximum frequency on the MMC bus */ 40 unsigned int max_freq; 41 42 /* Integrating attributes from the omap_hwmod layer */ 43 u8 controller_flags; 44 45 /* Register offset deviation */ 46 u16 reg_offset; 47 48 /* 49 * 4/8 wires and any additional host capabilities 50 * need to OR'd all capabilities (ref. linux/mmc/host.h) 51 */ 52 u32 caps; /* Used for the MMC driver on 2430 and later */ 53 u32 pm_caps; /* PM capabilities of the mmc */ 54 55 /* nonremovable e.g. eMMC */ 56 unsigned nonremovable:1; 57 58 /* eMMC does not handle power off when not in sleep state */ 59 unsigned no_regulator_off_init:1; 60 61 /* we can put the features above into this variable */ 62 #define HSMMC_HAS_PBIAS (1 << 0) 63 #define HSMMC_HAS_UPDATED_RESET (1 << 1) 64 #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) 65 unsigned features; 66 67 /* string specifying a particular variant of hardware */ 68 char *version; 69 70 /* if we have special card, init it using this callback */ 71 void (*init_card)(struct mmc_card *card); 72 73 const char *name; 74 u32 ocr_mask; 75 }; 76
