| /* |
| * 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 */ |
