mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-30 08:02:30 +00:00
d87fc96636
The delay cells of some SoCs may have less delay per one cell, for such SoCs, user could set the start delay cell point to bypass the first a few meaningless tuning commands. Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/*
|
|
* Copyright 2010 Wolfram Sang <w.sang@pengutronix.de>
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; version 2
|
|
* of the License.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_IMX_ESDHC_H
|
|
#define __ASM_ARCH_IMX_ESDHC_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
enum wp_types {
|
|
ESDHC_WP_NONE, /* no WP, neither controller nor gpio */
|
|
ESDHC_WP_CONTROLLER, /* mmc controller internal WP */
|
|
ESDHC_WP_GPIO, /* external gpio pin for WP */
|
|
};
|
|
|
|
enum cd_types {
|
|
ESDHC_CD_NONE, /* no CD, neither controller nor gpio */
|
|
ESDHC_CD_CONTROLLER, /* mmc controller internal CD */
|
|
ESDHC_CD_GPIO, /* external gpio pin for CD */
|
|
ESDHC_CD_PERMANENT, /* no CD, card permanently wired to host */
|
|
};
|
|
|
|
/**
|
|
* struct esdhc_platform_data - platform data for esdhc on i.MX
|
|
*
|
|
* ESDHC_WP(CD)_CONTROLLER type is not available on i.MX25/35.
|
|
*
|
|
* @wp_gpio: gpio for write_protect
|
|
* @cd_gpio: gpio for card_detect interrupt
|
|
* @wp_type: type of write_protect method (see wp_types enum above)
|
|
* @cd_type: type of card_detect method (see cd_types enum above)
|
|
* @support_vsel: indicate it supports 1.8v switching
|
|
*/
|
|
|
|
struct esdhc_platform_data {
|
|
unsigned int wp_gpio;
|
|
unsigned int cd_gpio;
|
|
enum wp_types wp_type;
|
|
enum cd_types cd_type;
|
|
int max_bus_width;
|
|
bool support_vsel;
|
|
unsigned int delay_line;
|
|
unsigned int tuning_step; /* The delay cell steps in tuning procedure */
|
|
unsigned int tuning_start_tap; /* The start delay cell point in tuning procedure */
|
|
};
|
|
#endif /* __ASM_ARCH_IMX_ESDHC_H */
|