+#ifdef CONFIG_MMC_TRACE
+void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd);
+void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd, int ret);
+void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd);
+#else
+static inline void mmmc_trace_before_send(struct mmc *mmc, struct mmc_cmd *cmd)
+{
+}
+
+static inline void mmmc_trace_after_send(struct mmc *mmc, struct mmc_cmd *cmd,
+ int ret)
+{
+}
+
+static inline void mmc_trace_state(struct mmc *mmc, struct mmc_cmd *cmd)
+{
+}
+#endif
+
+/**
+ * mmc_get_next_devnum() - Get the next available MMC device number
+ *
+ * @return next available device number (0 = first), or -ve on error
+ */
+int mmc_get_next_devnum(void);
+
+/**
+ * mmc_do_preinit() - Get an MMC device ready for use
+ */
+void mmc_do_preinit(void);
+
+/**
+ * mmc_list_init() - Set up the list of MMC devices
+ */
+void mmc_list_init(void);
+
+/**
+ * mmc_list_add() - Add a new MMC device to the list of devices
+ *
+ * @mmc: Device to add
+ */
+void mmc_list_add(struct mmc *mmc);
+
+/**
+ * mmc_switch_part() - Switch to a new MMC hardware partition
+ *
+ * @mmc: MMC device
+ * @part_num: Hardware partition number
+ * @return 0 if OK, -ve on error
+ */
+int mmc_switch_part(struct mmc *mmc, unsigned int part_num);
+
+/**
+ * mmc_switch() - Issue and MMC switch mode command
+ *
+ * @mmc: MMC device
+ * @set: Unused
+ * @index: Cmdarg index
+ * @value: Cmdarg value
+ * @return 0 if OK, -ve on error
+ */
+int mmc_switch(struct mmc *mmc, u8 set, u8 index, u8 value);
+