uint tran_speed;
uint legacy_speed; /* speed for the legacy mode provided by the card */
uint read_bl_len;
+#if CONFIG_IS_ENABLED(MMC_WRITE)
uint write_bl_len;
uint erase_grp_size; /* in 512-byte sectors */
+#endif
uint hc_wp_grp_size; /* in 512-byte sectors */
#if CONFIG_IS_ENABLED(MMC_WRITE)
struct sd_ssr ssr; /* SD status register */