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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /arch/arm/plat-omap/include/plat/mmc.h
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'arch/arm/plat-omap/include/plat/mmc.h')
-rw-r--r--arch/arm/plat-omap/include/plat/mmc.h182
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
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+++ 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
36struct omap_mmc_dev_attr {
37 u8 flags;
38};
39
40struct 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 */
155extern 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)
160void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
161 int nr_controllers);
162void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
163int 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
167static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
168 int nr_controllers)
169{
170}
171static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
172{
173}
174static 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