43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2010 Wolfram Sang <kernel@pengutronix.de>
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*/
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#ifndef __ASM_ARCH_IMX_ESDHC_H
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#define __ASM_ARCH_IMX_ESDHC_H
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#include <linux/types.h>
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enum wp_types {
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ESDHC_WP_NONE, /* no WP, neither controller nor gpio */
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ESDHC_WP_CONTROLLER, /* mmc controller internal WP */
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ESDHC_WP_GPIO, /* external gpio pin for WP */
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};
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enum cd_types {
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ESDHC_CD_NONE, /* no CD, neither controller nor gpio */
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ESDHC_CD_CONTROLLER, /* mmc controller internal CD */
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ESDHC_CD_GPIO, /* external gpio pin for CD */
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ESDHC_CD_PERMANENT, /* no CD, card permanently wired to host */
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};
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/**
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* struct esdhc_platform_data - platform data for esdhc on i.MX
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*
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* ESDHC_WP(CD)_CONTROLLER type is not available on i.MX25/35.
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*
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* @wp_type: type of write_protect method (see wp_types enum above)
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* @cd_type: type of card_detect method (see cd_types enum above)
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*/
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struct esdhc_platform_data {
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enum wp_types wp_type;
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enum cd_types cd_type;
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int max_bus_width;
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unsigned int delay_line;
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unsigned int tuning_step; /* The delay cell steps in tuning procedure */
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unsigned int tuning_start_tap; /* The start delay cell point in tuning procedure */
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unsigned int strobe_dll_delay_target; /* The delay cell for strobe pad (read clock) */
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};
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#endif /* __ASM_ARCH_IMX_ESDHC_H */
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