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.
14 #include <linux/types.h>
15 #include <linux/device.h>
16 #include <linux/mmc/host.h>
18 #include <plat/omap_hwmod.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
35 * struct omap_mmc_dev_attr.flags possibilities
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).
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).
50 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
51 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
53 struct omap_mmc_dev_attr {
57 struct omap_mmc_platform_data {
58 /* back-link to device */
61 /* number of slots per controller */
64 /* set if your board has components or wiring that limits the
65 * maximum frequency on the MMC bus */
66 unsigned int max_freq;
68 /* switch the bus to a new slot */
69 int (*switch_slot)(struct device *dev, int slot);
70 /* initialize board-specific MMC functionality, can be NULL if
72 int (*init)(struct device *dev);
73 void (*cleanup)(struct device *dev);
74 void (*shutdown)(struct device *dev);
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);
80 /* Return context loss count due to PM states changing */
81 int (*get_context_loss_count)(struct device *dev);
83 /* Integrating attributes from the omap_hwmod layer */
86 /* Register offset deviation */
89 struct omap_mmc_slot_data {
92 * 4/8 wires and any additional host capabilities
93 * need to OR'd all capabilities (ref. linux/mmc/host.h)
95 u8 wires; /* Used for the MMC driver on omap1 and 2420 */
96 u32 caps; /* Used for the MMC driver on 2430 and later */
97 u32 pm_caps; /* PM capabilities of the mmc */
100 * nomux means "standard" muxing is wrong on this board, and
101 * that board-specific code handled it before common init logic.
105 /* switch pin can be for card detect (default) or card cover */
108 /* use the internal clock */
109 unsigned internal_clock:1;
111 /* nonremovable e.g. eMMC */
112 unsigned nonremovable:1;
114 /* Try to sleep or power off when possible */
115 unsigned power_saving:1;
117 /* If using power_saving and the MMC power is not to go off */
120 /* eMMC does not handle power off when not in sleep state */
121 unsigned no_regulator_off_init:1;
123 /* Regulator off remapped to sleep */
124 unsigned vcc_aux_disable_is_sleep:1;
126 /* we can put the features above into this variable */
127 #define HSMMC_HAS_PBIAS (1 << 0)
128 #define HSMMC_HAS_UPDATED_RESET (1 << 1)
131 int switch_pin; /* gpio (card detect) */
132 int gpio_wp; /* gpio (write protect) */
134 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
135 int (*set_power)(struct device *dev, int slot,
136 int power_on, int vdd);
137 int (*get_ro)(struct device *dev, int slot);
138 void (*remux)(struct device *dev, int slot, int power_on);
139 /* Call back before enabling / disabling regulators */
140 void (*before_set_reg)(struct device *dev, int slot,
141 int power_on, int vdd);
142 /* Call back after enabling / disabling regulators */
143 void (*after_set_reg)(struct device *dev, int slot,
144 int power_on, int vdd);
145 /* if we have special card, init it using this callback */
146 void (*init_card)(struct mmc_card *card);
148 /* return MMC cover switch state, can be NULL if not supported.
150 * possible return values:
154 int (*get_cover_state)(struct device *dev, int slot);
159 /* Card detection IRQs */
161 int (*card_detect)(struct device *dev, int slot);
163 unsigned int ban_openended:1;
165 } slots[OMAP_MMC_MAX_SLOTS];
168 /* called from board-specific card detection service routine */
169 extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
172 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
173 void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
175 void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
177 static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
181 static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
186 extern int omap_msdi_reset(struct omap_hwmod *oh);