1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * MMC definitions for OMAP2 |
4 | * |
5 | * Copyright (C) 2006 Nokia Corporation |
6 | */ |
7 | |
8 | #define OMAP_MMC_MAX_SLOTS 2 |
9 | |
10 | struct mmc_card; |
11 | |
12 | struct omap_mmc_platform_data { |
13 | /* back-link to device */ |
14 | struct device *dev; |
15 | |
16 | /* number of slots per controller */ |
17 | unsigned nr_slots:2; |
18 | |
19 | /* set if your board has components or wiring that limits the |
20 | * maximum frequency on the MMC bus */ |
21 | unsigned int max_freq; |
22 | |
23 | /* initialize board-specific MMC functionality, can be NULL if |
24 | * not supported */ |
25 | int (*init)(struct device *dev); |
26 | void (*cleanup)(struct device *dev); |
27 | void (*shutdown)(struct device *dev); |
28 | |
29 | /* Return context loss count due to PM states changing */ |
30 | int (*get_context_loss_count)(struct device *dev); |
31 | |
32 | /* Integrating attributes from the omap_hwmod layer */ |
33 | u8 controller_flags; |
34 | |
35 | /* Register offset deviation */ |
36 | u16 reg_offset; |
37 | |
38 | struct omap_mmc_slot_data { |
39 | |
40 | /* |
41 | * 4/8 wires and any additional host capabilities |
42 | * need to OR'd all capabilities (ref. linux/mmc/host.h) |
43 | */ |
44 | u8 wires; /* Used for the MMC driver on omap1 and 2420 */ |
45 | u32 caps; /* Used for the MMC driver on 2430 and later */ |
46 | u32 pm_caps; /* PM capabilities of the mmc */ |
47 | |
48 | /* |
49 | * nomux means "standard" muxing is wrong on this board, and |
50 | * that board-specific code handled it before common init logic. |
51 | */ |
52 | unsigned nomux:1; |
53 | |
54 | /* switch pin can be for card detect (default) or card cover */ |
55 | unsigned cover:1; |
56 | |
57 | /* use the internal clock */ |
58 | unsigned internal_clock:1; |
59 | |
60 | /* nonremovable e.g. eMMC */ |
61 | unsigned nonremovable:1; |
62 | |
63 | /* Try to sleep or power off when possible */ |
64 | unsigned power_saving:1; |
65 | |
66 | /* If using power_saving and the MMC power is not to go off */ |
67 | unsigned no_off:1; |
68 | |
69 | /* eMMC does not handle power off when not in sleep state */ |
70 | unsigned no_regulator_off_init:1; |
71 | |
72 | /* Regulator off remapped to sleep */ |
73 | unsigned vcc_aux_disable_is_sleep:1; |
74 | |
75 | /* we can put the features above into this variable */ |
76 | #define MMC_OMAP7XX (1 << 3) |
77 | #define MMC_OMAP15XX (1 << 4) |
78 | #define MMC_OMAP16XX (1 << 5) |
79 | unsigned features; |
80 | |
81 | int switch_pin; /* gpio (card detect) */ |
82 | int gpio_wp; /* gpio (write protect) */ |
83 | |
84 | int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); |
85 | int (*set_power)(struct device *dev, int slot, |
86 | int power_on, int vdd); |
87 | int (*get_ro)(struct device *dev, int slot); |
88 | void (*remux)(struct device *dev, int slot, int power_on); |
89 | /* Call back before enabling / disabling regulators */ |
90 | void (*before_set_reg)(struct device *dev, int slot, |
91 | int power_on, int vdd); |
92 | /* Call back after enabling / disabling regulators */ |
93 | void (*after_set_reg)(struct device *dev, int slot, |
94 | int power_on, int vdd); |
95 | /* if we have special card, init it using this callback */ |
96 | void (*init_card)(struct mmc_card *card); |
97 | |
98 | /* return MMC cover switch state, can be NULL if not supported. |
99 | * |
100 | * possible return values: |
101 | * 0 - closed |
102 | * 1 - open |
103 | */ |
104 | int (*get_cover_state)(struct device *dev, int slot); |
105 | |
106 | const char *name; |
107 | u32 ocr_mask; |
108 | |
109 | /* Card detection */ |
110 | int (*card_detect)(struct device *dev, int slot); |
111 | |
112 | unsigned int ban_openended:1; |
113 | |
114 | } slots[OMAP_MMC_MAX_SLOTS]; |
115 | }; |
116 | |
117 | extern void omap_mmc_notify_cover_event(struct device *dev, int slot, |
118 | int is_closed); |
119 | |