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8777297b KS |
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 | #ifndef __OMAP2_MMC_H | |
12 | #define __OMAP2_MMC_H | |
13 | ||
14 | #include <linux/types.h> | |
15 | #include <linux/device.h> | |
16 | #include <linux/mmc/host.h> | |
17 | ||
ad1b6662 | 18 | #include <plat/omap_hwmod.h> |
0a4b53a2 | 19 | |
d8874665 TL |
20 | #define OMAP15XX_NR_MMC 1 |
21 | #define OMAP16XX_NR_MMC 2 | |
22 | #define OMAP1_MMC_SIZE 0x080 | |
23 | #define OMAP1_MMC1_BASE 0xfffb7800 | |
24 | #define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */ | |
25 | ||
26 | #define OMAP24XX_NR_MMC 2 | |
d8874665 | 27 | #define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE |
d8874665 | 28 | #define OMAP2_MMC1_BASE 0x4809c000 |
4621d5f8 | 29 | |
82cf818d | 30 | #define OMAP4_MMC_REG_OFFSET 0x100 |
d8874665 | 31 | |
8777297b KS |
32 | #define OMAP_MMC_MAX_SLOTS 2 |
33 | ||
9b68256c PW |
34 | /* |
35 | * struct omap_mmc_dev_attr.flags possibilities | |
36 | * | |
37 | * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can | |
38 | * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag | |
39 | * should be set if this is the case. See for example Section 22.5.3 | |
40 | * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia | |
41 | * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R). | |
42 | * | |
43 | * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers | |
44 | * don't work correctly on some MMC controller instances on some | |
45 | * OMAP3 SoCs; this flag should be set if this is the case. See | |
46 | * for example Advisory 2.1.1.128 "MMC: Multiple Block Read | |
47 | * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_ | |
48 | * Revision F (October 2010) (SPRZ278F). | |
49 | */ | |
50 | #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0) | |
51 | #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1) | |
6ab8946f KK |
52 | |
53 | struct omap_mmc_dev_attr { | |
54 | u8 flags; | |
55 | }; | |
56 | ||
8777297b | 57 | struct omap_mmc_platform_data { |
01971f65 DB |
58 | /* back-link to device */ |
59 | struct device *dev; | |
abfbe5f7 | 60 | |
d8874665 | 61 | /* number of slots per controller */ |
8777297b | 62 | unsigned nr_slots:2; |
0a4b53a2 | 63 | |
8777297b KS |
64 | /* set if your board has components or wiring that limits the |
65 | * maximum frequency on the MMC bus */ | |
66 | unsigned int max_freq; | |
67 | ||
68 | /* switch the bus to a new slot */ | |
db0fefc5 | 69 | int (*switch_slot)(struct device *dev, int slot); |
8777297b KS |
70 | /* initialize board-specific MMC functionality, can be NULL if |
71 | * not supported */ | |
db0fefc5 AH |
72 | int (*init)(struct device *dev); |
73 | void (*cleanup)(struct device *dev); | |
74 | void (*shutdown)(struct device *dev); | |
0a4b53a2 TL |
75 | |
76 | /* To handle board related suspend/resume functionality for MMC */ | |
77 | int (*suspend)(struct device *dev, int slot); | |
78 | int (*resume)(struct device *dev, int slot); | |
8777297b | 79 | |
1887bde3 DK |
80 | /* Return context loss count due to PM states changing */ |
81 | int (*get_context_loss_count)(struct device *dev); | |
82 | ||
6ab8946f KK |
83 | /* Integrating attributes from the omap_hwmod layer */ |
84 | u8 controller_flags; | |
85 | ||
91a0b089 | 86 | /* Register offset deviation */ |
87 | u16 reg_offset; | |
88 | ||
8777297b | 89 | struct omap_mmc_slot_data { |
d8874665 | 90 | |
63509e3c TL |
91 | /* |
92 | * 4/8 wires and any additional host capabilities | |
93 | * need to OR'd all capabilities (ref. linux/mmc/host.h) | |
94 | */ | |
95 | u8 wires; /* Used for the MMC driver on omap1 and 2420 */ | |
96 | u32 caps; /* Used for the MMC driver on 2430 and later */ | |
6fdc75de | 97 | u32 pm_caps; /* PM capabilities of the mmc */ |
90c62bf0 | 98 | |
d8874665 TL |
99 | /* |
100 | * nomux means "standard" muxing is wrong on this board, and | |
101 | * that board-specific code handled it before common init logic. | |
102 | */ | |
103 | unsigned nomux:1; | |
104 | ||
105 | /* switch pin can be for card detect (default) or card cover */ | |
106 | unsigned cover:1; | |
107 | ||
d8874665 TL |
108 | /* use the internal clock */ |
109 | unsigned internal_clock:1; | |
90c62bf0 | 110 | |
23d99bb9 AH |
111 | /* nonremovable e.g. eMMC */ |
112 | unsigned nonremovable:1; | |
113 | ||
dd498eff DK |
114 | /* Try to sleep or power off when possible */ |
115 | unsigned power_saving:1; | |
116 | ||
1df58db8 AH |
117 | /* If using power_saving and the MMC power is not to go off */ |
118 | unsigned no_off:1; | |
119 | ||
b1c1df7a B |
120 | /* eMMC does not handle power off when not in sleep state */ |
121 | unsigned no_regulator_off_init:1; | |
122 | ||
e0eb2424 AH |
123 | /* Regulator off remapped to sleep */ |
124 | unsigned vcc_aux_disable_is_sleep:1; | |
125 | ||
03e7e170 | 126 | /* we can put the features above into this variable */ |
127 | #define HSMMC_HAS_PBIAS (1 << 0) | |
07ad64b6 | 128 | #define HSMMC_HAS_UPDATED_RESET (1 << 1) |
cd587096 | 129 | #define HSMMC_HAS_HSPE_SUPPORT (1 << 2) |
03e7e170 | 130 | unsigned features; |
131 | ||
90c62bf0 TL |
132 | int switch_pin; /* gpio (card detect) */ |
133 | int gpio_wp; /* gpio (write protect) */ | |
d8874665 | 134 | |
db0fefc5 AH |
135 | int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); |
136 | int (*set_power)(struct device *dev, int slot, | |
137 | int power_on, int vdd); | |
138 | int (*get_ro)(struct device *dev, int slot); | |
ce6f0016 | 139 | void (*remux)(struct device *dev, int slot, int power_on); |
db0fefc5 AH |
140 | /* Call back before enabling / disabling regulators */ |
141 | void (*before_set_reg)(struct device *dev, int slot, | |
142 | int power_on, int vdd); | |
143 | /* Call back after enabling / disabling regulators */ | |
144 | void (*after_set_reg)(struct device *dev, int slot, | |
145 | int power_on, int vdd); | |
4816858c GI |
146 | /* if we have special card, init it using this callback */ |
147 | void (*init_card)(struct mmc_card *card); | |
8777297b KS |
148 | |
149 | /* return MMC cover switch state, can be NULL if not supported. | |
150 | * | |
151 | * possible return values: | |
d8874665 TL |
152 | * 0 - closed |
153 | * 1 - open | |
8777297b | 154 | */ |
db0fefc5 | 155 | int (*get_cover_state)(struct device *dev, int slot); |
8777297b KS |
156 | |
157 | const char *name; | |
158 | u32 ocr_mask; | |
0a4b53a2 TL |
159 | |
160 | /* Card detection IRQs */ | |
161 | int card_detect_irq; | |
db0fefc5 | 162 | int (*card_detect)(struct device *dev, int slot); |
0a4b53a2 TL |
163 | |
164 | unsigned int ban_openended:1; | |
165 | ||
8777297b KS |
166 | } slots[OMAP_MMC_MAX_SLOTS]; |
167 | }; | |
168 | ||
8777297b | 169 | /* called from board-specific card detection service routine */ |
db0fefc5 AH |
170 | extern void omap_mmc_notify_cover_event(struct device *dev, int slot, |
171 | int is_closed); | |
8777297b | 172 | |
f968cabc | 173 | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) |
d8874665 TL |
174 | void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, |
175 | int nr_controllers); | |
e08016d0 | 176 | void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data); |
d8874665 TL |
177 | #else |
178 | static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, | |
179 | int nr_controllers) | |
180 | { | |
181 | } | |
e08016d0 AG |
182 | static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data) |
183 | { | |
184 | } | |
d8874665 | 185 | #endif |
ad1b6662 TL |
186 | |
187 | extern int omap_msdi_reset(struct omap_hwmod *oh); | |
188 | ||
8777297b | 189 | #endif |