kgdb_data;
/* these functions are provided by the generic kgdb support */
-extern void kgdb_init(void);
+/**
+ * kgdb_init()
+ *
+ * Perform initializations to allow debugging U-Boot with gdb over a serial
+ * link. It is called during the generic board init sequence.
+ *
+ * Return: 0 if OK
+ */
+int kgdb_init(void);
+
extern void kgdb_error(int);
extern int kgdb_output_string(const char *, unsigned int);
extern void breakpoint(void);
extern void kgdb_putreg(struct pt_regs *, int, char *, int);
extern void kgdb_putregs(struct pt_regs *, char *, int);
extern int kgdb_trap(struct pt_regs *);
-extern void kgdb_breakpoint(int argc, char * const argv[]);
+void kgdb_breakpoint(int argc, char *const argv[]);
/* these functions are provided by the platform serial driver */
extern void kgdb_serial_init(void);