mirror of https://gitee.com/openkylin/linux.git
177 lines
4.9 KiB
C
177 lines
4.9 KiB
C
/*
|
|
* MMC definitions for OMAP2
|
|
*
|
|
* Copyright (C) 2006 Nokia Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __OMAP2_MMC_H
|
|
#define __OMAP2_MMC_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/device.h>
|
|
#include <linux/mmc/host.h>
|
|
|
|
#include <plat/board.h>
|
|
|
|
#define OMAP15XX_NR_MMC 1
|
|
#define OMAP16XX_NR_MMC 2
|
|
#define OMAP1_MMC_SIZE 0x080
|
|
#define OMAP1_MMC1_BASE 0xfffb7800
|
|
#define OMAP1_MMC2_BASE 0xfffb7c00 /* omap16xx only */
|
|
|
|
#define OMAP24XX_NR_MMC 2
|
|
#define OMAP34XX_NR_MMC 3
|
|
#define OMAP44XX_NR_MMC 5
|
|
#define OMAP2420_MMC_SIZE OMAP1_MMC_SIZE
|
|
#define OMAP3_HSMMC_SIZE 0x200
|
|
#define OMAP4_HSMMC_SIZE 0x1000
|
|
#define OMAP2_MMC1_BASE 0x4809c000
|
|
#define OMAP2_MMC2_BASE 0x480b4000
|
|
#define OMAP3_MMC3_BASE 0x480ad000
|
|
#define OMAP4_MMC4_BASE 0x480d1000
|
|
#define OMAP4_MMC5_BASE 0x480d5000
|
|
#define OMAP4_MMC_REG_OFFSET 0x100
|
|
#define HSMMC5 (1 << 4)
|
|
#define HSMMC4 (1 << 3)
|
|
#define HSMMC3 (1 << 2)
|
|
#define HSMMC2 (1 << 1)
|
|
#define HSMMC1 (1 << 0)
|
|
|
|
#define OMAP_MMC_MAX_SLOTS 2
|
|
|
|
struct omap_mmc_platform_data {
|
|
/* back-link to device */
|
|
struct device *dev;
|
|
|
|
/* number of slots per controller */
|
|
unsigned nr_slots:2;
|
|
|
|
/* set if your board has components or wiring that limits the
|
|
* maximum frequency on the MMC bus */
|
|
unsigned int max_freq;
|
|
|
|
/* switch the bus to a new slot */
|
|
int (*switch_slot)(struct device *dev, int slot);
|
|
/* initialize board-specific MMC functionality, can be NULL if
|
|
* not supported */
|
|
int (*init)(struct device *dev);
|
|
void (*cleanup)(struct device *dev);
|
|
void (*shutdown)(struct device *dev);
|
|
|
|
/* To handle board related suspend/resume functionality for MMC */
|
|
int (*suspend)(struct device *dev, int slot);
|
|
int (*resume)(struct device *dev, int slot);
|
|
|
|
/* Return context loss count due to PM states changing */
|
|
int (*get_context_loss_count)(struct device *dev);
|
|
|
|
u64 dma_mask;
|
|
|
|
struct omap_mmc_slot_data {
|
|
|
|
/* 4 wire signaling is optional, and is used for SD/SDIO/HSMMC;
|
|
* 8 wire signaling is also optional, and is used with HSMMC
|
|
*/
|
|
u8 wires;
|
|
|
|
/*
|
|
* nomux means "standard" muxing is wrong on this board, and
|
|
* that board-specific code handled it before common init logic.
|
|
*/
|
|
unsigned nomux:1;
|
|
|
|
/* switch pin can be for card detect (default) or card cover */
|
|
unsigned cover:1;
|
|
|
|
/* use the internal clock */
|
|
unsigned internal_clock:1;
|
|
|
|
/* nonremovable e.g. eMMC */
|
|
unsigned nonremovable:1;
|
|
|
|
/* Try to sleep or power off when possible */
|
|
unsigned power_saving:1;
|
|
|
|
/* If using power_saving and the MMC power is not to go off */
|
|
unsigned no_off:1;
|
|
|
|
/* Regulator off remapped to sleep */
|
|
unsigned vcc_aux_disable_is_sleep:1;
|
|
|
|
/* we can put the features above into this variable */
|
|
#define HSMMC_HAS_PBIAS (1 << 0)
|
|
unsigned features;
|
|
|
|
int switch_pin; /* gpio (card detect) */
|
|
int gpio_wp; /* gpio (write protect) */
|
|
|
|
int (*set_bus_mode)(struct device *dev, int slot, int bus_mode);
|
|
int (*set_power)(struct device *dev, int slot,
|
|
int power_on, int vdd);
|
|
int (*get_ro)(struct device *dev, int slot);
|
|
int (*set_sleep)(struct device *dev, int slot, int sleep,
|
|
int vdd, int cardsleep);
|
|
void (*remux)(struct device *dev, int slot, int power_on);
|
|
/* Call back before enabling / disabling regulators */
|
|
void (*before_set_reg)(struct device *dev, int slot,
|
|
int power_on, int vdd);
|
|
/* Call back after enabling / disabling regulators */
|
|
void (*after_set_reg)(struct device *dev, int slot,
|
|
int power_on, int vdd);
|
|
|
|
/* return MMC cover switch state, can be NULL if not supported.
|
|
*
|
|
* possible return values:
|
|
* 0 - closed
|
|
* 1 - open
|
|
*/
|
|
int (*get_cover_state)(struct device *dev, int slot);
|
|
|
|
const char *name;
|
|
u32 ocr_mask;
|
|
|
|
/* Card detection IRQs */
|
|
int card_detect_irq;
|
|
int (*card_detect)(struct device *dev, int slot);
|
|
|
|
unsigned int ban_openended:1;
|
|
|
|
} slots[OMAP_MMC_MAX_SLOTS];
|
|
};
|
|
|
|
/* called from board-specific card detection service routine */
|
|
extern void omap_mmc_notify_cover_event(struct device *dev, int slot,
|
|
int is_closed);
|
|
|
|
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
|
|
defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
|
|
void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
|
|
int nr_controllers);
|
|
void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
|
|
int nr_controllers);
|
|
int omap_mmc_add(const char *name, int id, unsigned long base,
|
|
unsigned long size, unsigned int irq,
|
|
struct omap_mmc_platform_data *data);
|
|
#else
|
|
static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
|
|
int nr_controllers)
|
|
{
|
|
}
|
|
static inline void omap2_init_mmc(struct omap_mmc_platform_data **mmc_data,
|
|
int nr_controllers)
|
|
{
|
|
}
|
|
static inline int omap_mmc_add(const char *name, int id, unsigned long base,
|
|
unsigned long size, unsigned int irq,
|
|
struct omap_mmc_platform_data *data)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
#endif
|