diff options
author | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
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committer | Jonathan Herman <hermanjl@cs.unc.edu> | 2013-01-22 10:38:37 -0500 |
commit | fcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch) | |
tree | a57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/plat-omap/include/plat/mmc.h | |
parent | 8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff) |
Diffstat (limited to 'arch/arm/plat-omap/include/plat/mmc.h')
-rw-r--r-- | arch/arm/plat-omap/include/plat/mmc.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h new file mode 100644 index 00000000000..c7b874186c2 --- /dev/null +++ b/arch/arm/plat-omap/include/plat/mmc.h | |||
@@ -0,0 +1,182 @@ | |||
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 | |||
18 | #include <plat/board.h> | ||
19 | |||
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 | ||
27 | #define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE | ||
28 | #define OMAP2_MMC1_BASE 0x4809c000 | ||
29 | |||
30 | #define OMAP4_MMC_REG_OFFSET 0x100 | ||
31 | |||
32 | #define OMAP_MMC_MAX_SLOTS 2 | ||
33 | |||
34 | #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(1) | ||
35 | |||
36 | struct omap_mmc_dev_attr { | ||
37 | u8 flags; | ||
38 | }; | ||
39 | |||
40 | struct omap_mmc_platform_data { | ||
41 | /* back-link to device */ | ||
42 | struct device *dev; | ||
43 | |||
44 | /* number of slots per controller */ | ||
45 | unsigned nr_slots:2; | ||
46 | |||
47 | /* set if your board has components or wiring that limits the | ||
48 | * maximum frequency on the MMC bus */ | ||
49 | unsigned int max_freq; | ||
50 | |||
51 | /* switch the bus to a new slot */ | ||
52 | int (*switch_slot)(struct device *dev, int slot); | ||
53 | /* initialize board-specific MMC functionality, can be NULL if | ||
54 | * not supported */ | ||
55 | int (*init)(struct device *dev); | ||
56 | void (*cleanup)(struct device *dev); | ||
57 | void (*shutdown)(struct device *dev); | ||
58 | |||
59 | /* To handle board related suspend/resume functionality for MMC */ | ||
60 | int (*suspend)(struct device *dev, int slot); | ||
61 | int (*resume)(struct device *dev, int slot); | ||
62 | |||
63 | /* Return context loss count due to PM states changing */ | ||
64 | int (*get_context_loss_count)(struct device *dev); | ||
65 | |||
66 | u64 dma_mask; | ||
67 | |||
68 | /* Integrating attributes from the omap_hwmod layer */ | ||
69 | u8 controller_flags; | ||
70 | |||
71 | /* Register offset deviation */ | ||
72 | u16 reg_offset; | ||
73 | |||
74 | struct omap_mmc_slot_data { | ||
75 | |||
76 | /* | ||
77 | * 4/8 wires and any additional host capabilities | ||
78 | * need to OR'd all capabilities (ref. linux/mmc/host.h) | ||
79 | */ | ||
80 | u8 wires; /* Used for the MMC driver on omap1 and 2420 */ | ||
81 | u32 caps; /* Used for the MMC driver on 2430 and later */ | ||
82 | |||
83 | /* | ||
84 | * nomux means "standard" muxing is wrong on this board, and | ||
85 | * that board-specific code handled it before common init logic. | ||
86 | */ | ||
87 | unsigned nomux:1; | ||
88 | |||
89 | /* switch pin can be for card detect (default) or card cover */ | ||
90 | unsigned cover:1; | ||
91 | |||
92 | /* use the internal clock */ | ||
93 | unsigned internal_clock:1; | ||
94 | |||
95 | /* nonremovable e.g. eMMC */ | ||
96 | unsigned nonremovable:1; | ||
97 | |||
98 | /* Try to sleep or power off when possible */ | ||
99 | unsigned power_saving:1; | ||
100 | |||
101 | /* If using power_saving and the MMC power is not to go off */ | ||
102 | unsigned no_off:1; | ||
103 | |||
104 | /* eMMC does not handle power off when not in sleep state */ | ||
105 | unsigned no_regulator_off_init:1; | ||
106 | |||
107 | /* Regulator off remapped to sleep */ | ||
108 | unsigned vcc_aux_disable_is_sleep:1; | ||
109 | |||
110 | /* we can put the features above into this variable */ | ||
111 | #define HSMMC_HAS_PBIAS (1 << 0) | ||
112 | #define HSMMC_HAS_UPDATED_RESET (1 << 1) | ||
113 | unsigned features; | ||
114 | |||
115 | int switch_pin; /* gpio (card detect) */ | ||
116 | int gpio_wp; /* gpio (write protect) */ | ||
117 | |||
118 | int (*set_bus_mode)(struct device *dev, int slot, int bus_mode); | ||
119 | int (*set_power)(struct device *dev, int slot, | ||
120 | int power_on, int vdd); | ||
121 | int (*get_ro)(struct device *dev, int slot); | ||
122 | int (*set_sleep)(struct device *dev, int slot, int sleep, | ||
123 | int vdd, int cardsleep); | ||
124 | void (*remux)(struct device *dev, int slot, int power_on); | ||
125 | /* Call back before enabling / disabling regulators */ | ||
126 | void (*before_set_reg)(struct device *dev, int slot, | ||
127 | int power_on, int vdd); | ||
128 | /* Call back after enabling / disabling regulators */ | ||
129 | void (*after_set_reg)(struct device *dev, int slot, | ||
130 | int power_on, int vdd); | ||
131 | /* if we have special card, init it using this callback */ | ||
132 | void (*init_card)(struct mmc_card *card); | ||
133 | |||
134 | /* return MMC cover switch state, can be NULL if not supported. | ||
135 | * | ||
136 | * possible return values: | ||
137 | * 0 - closed | ||
138 | * 1 - open | ||
139 | */ | ||
140 | int (*get_cover_state)(struct device *dev, int slot); | ||
141 | |||
142 | const char *name; | ||
143 | u32 ocr_mask; | ||
144 | |||
145 | /* Card detection IRQs */ | ||
146 | int card_detect_irq; | ||
147 | int (*card_detect)(struct device *dev, int slot); | ||
148 | |||
149 | unsigned int ban_openended:1; | ||
150 | |||
151 | } slots[OMAP_MMC_MAX_SLOTS]; | ||
152 | }; | ||
153 | |||
154 | /* called from board-specific card detection service routine */ | ||
155 | extern void omap_mmc_notify_cover_event(struct device *dev, int slot, | ||
156 | int is_closed); | ||
157 | |||
158 | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ | ||
159 | defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) | ||
160 | void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, | ||
161 | int nr_controllers); | ||
162 | void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data); | ||
163 | int omap_mmc_add(const char *name, int id, unsigned long base, | ||
164 | unsigned long size, unsigned int irq, | ||
165 | struct omap_mmc_platform_data *data); | ||
166 | #else | ||
167 | static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, | ||
168 | int nr_controllers) | ||
169 | { | ||
170 | } | ||
171 | static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data) | ||
172 | { | ||
173 | } | ||
174 | static inline int omap_mmc_add(const char *name, int id, unsigned long base, | ||
175 | unsigned long size, unsigned int irq, | ||
176 | struct omap_mmc_platform_data *data) | ||
177 | { | ||
178 | return 0; | ||
179 | } | ||
180 | |||
181 | #endif | ||
182 | #endif | ||