#ifndef __ASM_ARCH_IMX_ESDHC_H
#define __ASM_ARCH_IMX_ESDHC_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 - optional platform data for esdhc on i.MX
+ * struct esdhc_platform_data - platform data for esdhc on i.MX
*
- * strongly recommended for i.MX25/35, not needed for other variants
+ * ESDHC_WP(CD)_CONTROLLER type is not available on i.MX25/35.
*
- * @wp_gpio: gpio for write_protect (-EINVAL if unused)
- * @cd_gpio: gpio for card_detect interrupt (-EINVAL if unused)
+ * @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)
*/
struct esdhc_platform_data {
unsigned int wp_gpio;
unsigned int cd_gpio;
+ enum wp_types wp_type;
+ enum cd_types cd_type;
};
#endif /* __ASM_ARCH_IMX_ESDHC_H */