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Andreas Fenkart551434382014-11-08 15:33:09 +01001/*
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
Andreas Fenkart551434382014-11-08 15:33:09 +010011/*
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 /* number of slots per controller */
42 unsigned nr_slots:2;
43
44 /* set if your board has components or wiring that limits the
45 * maximum frequency on the MMC bus */
46 unsigned int max_freq;
47
Andreas Fenkart551434382014-11-08 15:33:09 +010048 /* To handle board related suspend/resume functionality for MMC */
49 int (*suspend)(struct device *dev, int slot);
50 int (*resume)(struct device *dev, int slot);
51
Andreas Fenkart551434382014-11-08 15:33:09 +010052 /* Integrating attributes from the omap_hwmod layer */
53 u8 controller_flags;
54
55 /* Register offset deviation */
56 u16 reg_offset;
57
Andreas Fenkart326119c2014-11-08 15:33:14 +010058 /*
59 * 4/8 wires and any additional host capabilities
60 * need to OR'd all capabilities (ref. linux/mmc/host.h)
61 */
62 u32 caps; /* Used for the MMC driver on 2430 and later */
63 u32 pm_caps; /* PM capabilities of the mmc */
Andreas Fenkart551434382014-11-08 15:33:09 +010064
Andreas Fenkart326119c2014-11-08 15:33:14 +010065 /* switch pin can be for card detect (default) or card cover */
66 unsigned cover:1;
Andreas Fenkart551434382014-11-08 15:33:09 +010067
Andreas Fenkart326119c2014-11-08 15:33:14 +010068 /* use the internal clock */
69 unsigned internal_clock:1;
Andreas Fenkart551434382014-11-08 15:33:09 +010070
Andreas Fenkart326119c2014-11-08 15:33:14 +010071 /* nonremovable e.g. eMMC */
72 unsigned nonremovable:1;
Andreas Fenkart551434382014-11-08 15:33:09 +010073
Andreas Fenkart326119c2014-11-08 15:33:14 +010074 /* eMMC does not handle power off when not in sleep state */
75 unsigned no_regulator_off_init:1;
Andreas Fenkart551434382014-11-08 15:33:09 +010076
Andreas Fenkart326119c2014-11-08 15:33:14 +010077 /* we can put the features above into this variable */
Andreas Fenkart551434382014-11-08 15:33:09 +010078#define HSMMC_HAS_PBIAS (1 << 0)
79#define HSMMC_HAS_UPDATED_RESET (1 << 1)
80#define HSMMC_HAS_HSPE_SUPPORT (1 << 2)
Andreas Fenkart326119c2014-11-08 15:33:14 +010081 unsigned features;
Andreas Fenkart551434382014-11-08 15:33:09 +010082
Andreas Fenkart326119c2014-11-08 15:33:14 +010083 int switch_pin; /* gpio (card detect) */
84 int gpio_wp; /* gpio (write protect) */
Andreas Fenkart551434382014-11-08 15:33:09 +010085
Andreas Fenkart326119c2014-11-08 15:33:14 +010086 int (*set_power)(struct device *dev, int slot,
87 int power_on, int vdd);
88 int (*get_ro)(struct device *dev, int slot);
89 void (*remux)(struct device *dev, int slot, int power_on);
90 /* Call back before enabling / disabling regulators */
91 void (*before_set_reg)(struct device *dev, int slot,
92 int power_on, int vdd);
93 /* Call back after enabling / disabling regulators */
94 void (*after_set_reg)(struct device *dev, int slot,
95 int power_on, int vdd);
96 /* if we have special card, init it using this callback */
97 void (*init_card)(struct mmc_card *card);
Andreas Fenkart551434382014-11-08 15:33:09 +010098
Andreas Fenkart326119c2014-11-08 15:33:14 +010099 /* return MMC cover switch state, can be NULL if not supported.
100 *
101 * possible return values:
102 * 0 - closed
103 * 1 - open
104 */
105 int (*get_cover_state)(struct device *dev, int slot);
Andreas Fenkart551434382014-11-08 15:33:09 +0100106
Andreas Fenkart326119c2014-11-08 15:33:14 +0100107 const char *name;
108 u32 ocr_mask;
Andreas Fenkart551434382014-11-08 15:33:09 +0100109
Andreas Fenkart326119c2014-11-08 15:33:14 +0100110 /* Card detection IRQs */
111 int card_detect_irq;
Andreas Fenkart551434382014-11-08 15:33:09 +0100112
Andreas Fenkart326119c2014-11-08 15:33:14 +0100113 int (*card_detect)(struct device *dev, int slot);
Andreas Fenkart551434382014-11-08 15:33:09 +0100114};