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
31struct omap_hsmmc_dev_attr {
32	u8 flags;
33};
34
35struct mmc_card;
36
37struct 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	/* use the internal clock */
59	unsigned internal_clock:1;
60
61	/* nonremovable e.g. eMMC */
62	unsigned nonremovable:1;
63
64	/* eMMC does not handle power off when not in sleep state */
65	unsigned no_regulator_off_init:1;
66
67	/* we can put the features above into this variable */
68#define HSMMC_HAS_PBIAS		(1 << 0)
69#define HSMMC_HAS_UPDATED_RESET	(1 << 1)
70#define HSMMC_HAS_HSPE_SUPPORT	(1 << 2)
71	unsigned features;
72
73	int gpio_cd;			/* gpio (card detect) */
74	int gpio_cod;			/* gpio (cover detect) */
75	int gpio_wp;			/* gpio (write protect) */
76
77	int (*set_power)(struct device *dev, int power_on, int vdd);
78	void (*remux)(struct device *dev, int power_on);
79	/* Call back before enabling / disabling regulators */
80	void (*before_set_reg)(struct device *dev, int power_on, int vdd);
81	/* Call back after enabling / disabling regulators */
82	void (*after_set_reg)(struct device *dev, int power_on, int vdd);
83	/* if we have special card, init it using this callback */
84	void (*init_card)(struct mmc_card *card);
85
86	const char *name;
87	u32 ocr_mask;
88};
89