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/board.h>
19 #include <plat/omap_hwmod.h>
21 #define OMAP15XX_NR_MMC 1
22 #define OMAP16XX_NR_MMC 2
23 #define OMAP1_MMC_SIZE 0x080
24 #define OMAP1_MMC1_BASE 0xfffb7800
25 #define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */
27 #define OMAP24XX_NR_MMC 2
28 #define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
29 #define OMAP2_MMC1_BASE 0x4809c000
31 #define OMAP4_MMC_REG_OFFSET 0x100
33 #define OMAP_MMC_MAX_SLOTS 2
36 * struct omap_mmc_dev_attr.flags possibilities
38 * OMAP_HSMMC_SUPPORTS_DUAL_VOLT: Some HSMMC controller instances can
39 * operate with either 1.8Vdc or 3.0Vdc card voltages; this flag
40 * should be set if this is the case. See for example Section 22.5.3
41 * "MMC/SD/SDIO1 Bus Voltage Selection" of the OMAP34xx Multimedia
42 * Device Silicon Revision 3.1.x Revision ZR (July 2011) (SWPU223R).
44 * OMAP_HSMMC_BROKEN_MULTIBLOCK_READ: Multiple-block read transfers
45 * don't work correctly on some MMC controller instances on some
46 * OMAP3 SoCs; this flag should be set if this is the case. See
47 * for example Advisory 2.1.1.128 "MMC: Multiple Block Read
48 * Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
49 * Revision F (October 2010) (SPRZ278F).
51 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
52 #define OMAP_HSMMC_BROKEN_MULTIBLOCK_READ BIT(1)
54 struct omap_mmc_dev_attr {
58 struct omap_mmc_platform_data {
59 /* back-link to device */
62 /* number of slots per controller */
65 /* set if your board has components or wiring that limits the
66 * maximum frequency on the MMC bus */
67 unsigned int max_freq;
69 /* switch the bus to a new slot */
70 int (*switch_slot)(struct device *dev, int slot);
71 /* initialize board-specific MMC functionality, can be NULL if
73 int (*init)(struct device *dev);
74 void (*cleanup)(struct device *dev);
75 void (*shutdown)(struct device *dev);
77 /* To handle board related suspend/resume functionality for MMC */
78 int (*suspend)(struct device *dev, int slot);
79 int (*resume)(struct device *dev, int slot);
81 /* Return context loss count due to PM states changing */
82 int (*get_context_loss_count)(struct device *dev);
86 /* Integrating attributes from the omap_hwmod layer */
89 /* Register offset deviation */
92 struct omap_mmc_slot_data {
95 * 4/8 wires and any additional host capabilities
96 * need to OR'd all capabilities (ref. linux/mmc/host.h)
98 u8 wires; /* Used for the MMC driver on omap1 and 2420 */
99 u32 caps; /* Used for the MMC driver on 2430 and later */
100 u32 pm_caps; /* PM capabilities of the mmc */
103 * nomux means "standard" muxing is wrong on this board, and
104 * that board-specific code handled it before common init logic.
108 /* switch pin can be for card detect (default) or card cover */
111 /* use the internal clock */
112 unsigned internal_clock:1;
114 /* nonremovable e.g. eMMC */
115 unsigned nonremovable:1;
117 /* Try to sleep or power off when possible */
118 unsigned power_saving:1;
120 /* If using power_saving and the MMC power is not to go off */
123 /* eMMC does not handle power off when not in sleep state */
124 unsigned no_regulator_off_init:1;
126 /* Regulator off remapped to sleep */
127 unsigned vcc_aux_disable_is_sleep:1;
129 /* we can put the features above into this variable */
130 #define HSMMC_HAS_PBIAS (1 << 0)
131 #define HSMMC_HAS_UPDATED_RESET (1 << 1)
134 int switch_pin; /* gpio (card detect) */
135 int gpio_wp; /* gpio (write protect) */
137 int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
138 int (*set_power)(struct device *dev, int slot,
139 int power_on, int vdd);
140 int (*get_ro)(struct device *dev, int slot);
141 void (*remux)(struct device *dev, int slot, int power_on);
142 /* Call back before enabling / disabling regulators */
143 void (*before_set_reg)(struct device *dev, int slot,
144 int power_on, int vdd);
145 /* Call back after enabling / disabling regulators */
146 void (*after_set_reg)(struct device *dev, int slot,
147 int power_on, int vdd);
148 /* if we have special card, init it using this callback */
149 void (*init_card)(struct mmc_card *card);
151 /* return MMC cover switch state, can be NULL if not supported.
153 * possible return values:
157 int (*get_cover_state)(struct device *dev, int slot);
162 /* Card detection IRQs */
164 int (*card_detect)(struct device *dev, int slot);
166 unsigned int ban_openended:1;
168 } slots[OMAP_MMC_MAX_SLOTS];
171 /* called from board-specific card detection service routine */
172 extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
175 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
176 void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
178 void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data);
180 static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
184 static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data)
189 extern int omap_msdi_reset(struct omap_hwmod *oh);