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 <mach/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 OMAP34XX_NR_MMC 3
28 #define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
29 #define HSMMC_SIZE 0x200
30 #define OMAP2_MMC1_BASE 0x4809c000
31 #define OMAP2_MMC2_BASE 0x480b4000
32 #define OMAP3_MMC3_BASE 0x480ad000
33 #define HSMMC3 (1 << 2)
34 #define HSMMC2 (1 << 1)
35 #define HSMMC1 (1 << 0)
36
37 #define OMAP_MMC_MAX_SLOTS 2
38
39 struct omap_mmc_platform_data {
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
48 /* switch the bus to a new slot */
49 int (* switch_slot)(struct device *dev, int slot);
50 /* initialize board-specific MMC functionality, can be NULL if
51 * not supported */
52 int (* init)(struct device *dev);
53 void (* cleanup)(struct device *dev);
54 void (* shutdown)(struct device *dev);
55
56 /* To handle board related suspend/resume functionality for MMC */
57 int (*suspend)(struct device *dev, int slot);
58 int (*resume)(struct device *dev, int slot);
59
60 u64 dma_mask;
61
62 struct omap_mmc_slot_data {
63
64 /* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC;
65 * 8 wire signaling is also optional, and is used with HSMMC
66 */
67 u8 wires;
68
69 /*
70 * nomux means "standard" muxing is wrong on this board, and
71 * that board-specific code handled it before common init logic.
72 */
73 unsigned nomux:1;
74
75 /* switch pin can be for card detect (default) or card cover */
76 unsigned cover:1;
77
78 /* use the internal clock */
79 unsigned internal_clock:1;
80 s16 power_pin;
81
82 int switch_pin; /* gpio (card detect) */
83 int gpio_wp; /* gpio (write protect) */
84
85 int (* set_bus_mode)(struct device *dev, int slot, int bus_mode);
86 int (* set_power)(struct device *dev, int slot, int power_on, int vdd);
87 int (* get_ro)(struct device *dev, int slot);
88
89 /* return MMC cover switch state, can be NULL if not supported.
90 *
91 * possible return values:
92 * 0 - closed
93 * 1 - open
94 */
95 int (* get_cover_state)(struct device *dev, int slot);
96
97 const char *name;
98 u32 ocr_mask;
99
100 /* Card detection IRQs */
101 int card_detect_irq;
102 int (* card_detect)(int irq);
103
104 unsigned int ban_openended:1;
105
106 } slots[OMAP_MMC_MAX_SLOTS];
107 };
108
109 /* called from board-specific card detection service routine */
110 extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed);
111
112 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
113 defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
114 void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
115 int nr_controllers);
116 void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
117 int nr_controllers);
118 int omap_mmc_add(const char *name, int id, unsigned long base,
119 unsigned long size, unsigned int irq,
120 struct omap_mmc_platform_data *data);
121 #else
omap1_init_mmc(struct omap_mmc_platform_data ** mmc_data,int nr_controllers)122 static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
123 int nr_controllers)
124 {
125 }
omap2_init_mmc(struct omap_mmc_platform_data ** mmc_data,int nr_controllers)126 static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
127 int nr_controllers)
128 {
129 }
omap_mmc_add(const char * name,int id,unsigned long base,unsigned long size,unsigned int irq,struct omap_mmc_platform_data * data)130 static inline int omap_mmc_add(const char *name, int id, unsigned long base,
131 unsigned long size, unsigned int irq,
132 struct omap_mmc_platform_data *data)
133 {
134 return 0;
135 }
136
137 #endif
138 #endif
139