89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
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/*
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* MMC definitions for OMAP2
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*
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* Copyright (C) 2006 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* struct omap_hsmmc_dev_attr.flags possibilities
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*
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* OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
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* operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
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* should be set if this is the case. See for example Section 22.5.3
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* "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
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* Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
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*
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* OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
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* don't work correctly on some MMC controller instances on some
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* OMAP3 SoCs; this flag should be set if this is the case. See
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* for example Advisory 2.1.1.128 "MMC: Multiple Block Read
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* Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
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* Revision F (October 2010) (SPRZ278F).
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*/
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#define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
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#define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
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#define OMAP_HSMMC_SWAKEUP_MISSING BIT(2)
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struct omap_hsmmc_dev_attr {
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u8 flags;
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};
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struct mmc_card;
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struct omap_hsmmc_platform_data {
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/* back-link to device */
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struct device *dev;
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/* set if your board has components or wiring that limits the
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* maximum frequency on the MMC bus */
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unsigned int max_freq;
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/* Integrating attributes from the omap_hwmod layer */
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u8 controller_flags;
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/* Register offset deviation */
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u16 reg_offset;
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/*
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* 4/8 wires and any additional host capabilities
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* need to OR'd all capabilities (ref. linux/mmc/host.h)
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*/
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u32 caps; /* Used for the MMC driver on 2430 and later */
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u32 pm_caps; /* PM capabilities of the mmc */
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/* use the internal clock */
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unsigned internal_clock:1;
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/* nonremovable e.g. eMMC */
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unsigned nonremovable:1;
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/* eMMC does not handle power off when not in sleep state */
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unsigned no_regulator_off_init:1;
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/* we can put the features above into this variable */
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#define HSMMC_HAS_PBIAS (1 << 0)
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#define HSMMC_HAS_UPDATED_RESET (1 << 1)
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#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
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unsigned features;
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int gpio_cd; /* gpio (card detect) */
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int gpio_cod; /* gpio (cover detect) */
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int gpio_wp; /* gpio (write protect) */
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int (*set_power)(struct device *dev, int power_on, int vdd);
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void (*remux)(struct device *dev, int power_on);
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/* Call back before enabling / disabling regulators */
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void (*before_set_reg)(struct device *dev, int power_on, int vdd);
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/* Call back after enabling / disabling regulators */
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void (*after_set_reg)(struct device *dev, int power_on, int vdd);
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/* if we have special card, init it using this callback */
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void (*init_card)(struct mmc_card *card);
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const char *name;
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u32 ocr_mask;
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};
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