4c4cb17105
eMMC voltage change not required for 1.8V. 3.3V and 1.8V vcc are capable of doing DDR. vccq of 1.8v is not required. Signed-off-by: Philip Rakity <prakity@marvell.com> Reviewed-by: Arindam Nath <arindam.nath@amd.com> Signed-off-by: Chris Ball <cjb@laptop.org>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/*
|
|
* linux/drivers/mmc/core/core.h
|
|
*
|
|
* Copyright (C) 2003 Russell King, All Rights Reserved.
|
|
* Copyright 2007 Pierre Ossman
|
|
*
|
|
* 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 _MMC_CORE_CORE_H
|
|
#define _MMC_CORE_CORE_H
|
|
|
|
#include <linux/delay.h>
|
|
|
|
#define MMC_CMD_RETRIES 3
|
|
|
|
struct mmc_bus_ops {
|
|
int (*awake)(struct mmc_host *);
|
|
int (*sleep)(struct mmc_host *);
|
|
void (*remove)(struct mmc_host *);
|
|
void (*detect)(struct mmc_host *);
|
|
int (*suspend)(struct mmc_host *);
|
|
int (*resume)(struct mmc_host *);
|
|
int (*power_save)(struct mmc_host *);
|
|
int (*power_restore)(struct mmc_host *);
|
|
};
|
|
|
|
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
|
|
void mmc_detach_bus(struct mmc_host *host);
|
|
|
|
void mmc_init_erase(struct mmc_card *card);
|
|
|
|
void mmc_set_chip_select(struct mmc_host *host, int mode);
|
|
void mmc_set_clock(struct mmc_host *host, unsigned int hz);
|
|
void mmc_gate_clock(struct mmc_host *host);
|
|
void mmc_ungate_clock(struct mmc_host *host);
|
|
void mmc_set_ungated(struct mmc_host *host);
|
|
void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
|
|
void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
|
|
u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
|
|
int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage,
|
|
bool cmd11);
|
|
void mmc_set_timing(struct mmc_host *host, unsigned int timing);
|
|
void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
|
|
|
|
static inline void mmc_delay(unsigned int ms)
|
|
{
|
|
if (ms < 1000 / HZ) {
|
|
cond_resched();
|
|
mdelay(ms);
|
|
} else {
|
|
msleep(ms);
|
|
}
|
|
}
|
|
|
|
void mmc_rescan(struct work_struct *work);
|
|
void mmc_start_host(struct mmc_host *host);
|
|
void mmc_stop_host(struct mmc_host *host);
|
|
|
|
int mmc_attach_mmc(struct mmc_host *host);
|
|
int mmc_attach_sd(struct mmc_host *host);
|
|
int mmc_attach_sdio(struct mmc_host *host);
|
|
|
|
/* Module parameters */
|
|
extern int use_spi_crc;
|
|
|
|
/* Debugfs information for hosts and cards */
|
|
void mmc_add_host_debugfs(struct mmc_host *host);
|
|
void mmc_remove_host_debugfs(struct mmc_host *host);
|
|
|
|
void mmc_add_card_debugfs(struct mmc_card *card);
|
|
void mmc_remove_card_debugfs(struct mmc_card *card);
|
|
|
|
#endif
|
|
|