Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / arm / plat-omap / include / plat / mmc.h
blobc7b874186c27017d58a38bc4209e1c225752d3f5
1 /*
2 * MMC definitions for OMAP2
4 * Copyright (C) 2006 Nokia Corporation
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 */
11 #ifndef __OMAP2_MMC_H
12 #define __OMAP2_MMC_H
14 #include <linux/types.h>
15 #include <linux/device.h>
16 #include <linux/mmc/host.h>
18 #include <plat/board.h>
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 */
26 #define OMAP24XX_NR_MMC 2
27 #define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
28 #define OMAP2_MMC1_BASE 0x4809c000
30 #define OMAP4_MMC_REG_OFFSET 0x100
32 #define OMAP_MMC_MAX_SLOTS 2
34 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(1)
36 struct omap_mmc_dev_attr {
37 u8 flags;
40 struct omap_mmc_platform_data {
41 /* back-link to device */
42 struct device *dev;
44 /* number of slots per controller */
45 unsigned nr_slots:2;
47 /* set if your board has components or wiring that limits the
48 * maximum frequency on the MMC bus */
49 unsigned int max_freq;
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);
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);
63 /* Return context loss count due to PM states changing */
64 int (*get_context_loss_count)(struct device *dev);
66 u64 dma_mask;
68 /* Integrating attributes from the omap_hwmod layer */
69 u8 controller_flags;
71 /* Register offset deviation */
72 u16 reg_offset;
74 struct omap_mmc_slot_data {
77 * 4/8 wires and any additional host capabilities
78 * need to OR'd all capabilities (ref. linux/mmc/host.h)
80 u8 wires; /* Used for the MMC driver on omap1 and 2420 */
81 u32 caps; /* Used for the MMC driver on 2430 and later */
84 * nomux means "standard" muxing is wrong on this board, and
85 * that board-specific code handled it before common init logic.
87 unsigned nomux:1;
89 /* switch pin can be for card detect (default) or card cover */
90 unsigned cover:1;
92 /* use the internal clock */
93 unsigned internal_clock:1;
95 /* nonremovable e.g. eMMC */
96 unsigned nonremovable:1;
98 /* Try to sleep or power off when possible */
99 unsigned power_saving:1;
101 /* If using power_saving and the MMC power is not to go off */
102 unsigned no_off:1;
104 /* eMMC does not handle power off when not in sleep state */
105 unsigned no_regulator_off_init:1;
107 /* Regulator off remapped to sleep */
108 unsigned vcc_aux_disable_is_sleep:1;
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;
115 int switch_pin; /* gpio (card detect) */
116 int gpio_wp; /* gpio (write protect) */
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);
134 /* return MMC cover switch state, can be NULL if not supported.
136 * possible return values:
137 * 0 - closed
138 * 1 - open
140 int (*get_cover_state)(struct device *dev, int slot);
142 const char *name;
143 u32 ocr_mask;
145 /* Card detection IRQs */
146 int card_detect_irq;
147 int (*card_detect)(struct device *dev, int slot);
149 unsigned int ban_openended:1;
151 } slots[OMAP_MMC_MAX_SLOTS];
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);
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)
171 static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
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)
178 return 0;
181 #endif
182 #endif