| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright 2010 Wolfram Sang <kernel@pengutronix.de> |
| */ |
| |
| #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_type: type of write_protect method (see wp_types enum above) |
| * @cd_type: type of card_detect method (see cd_types enum above) |
| */ |
| |
| struct esdhc_platform_data { |
| enum wp_types wp_type; |
| enum cd_types cd_type; |
| int max_bus_width; |
| 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 */ |
| unsigned int strobe_dll_delay_target; /* The delay cell for strobe pad (read clock) */ |
| }; |
| #endif /* __ASM_ARCH_IMX_ESDHC_H */ |
