bdinfo: xtensa: Create a generic do_bdinfo for xtensa

This arch uses only the generic function. It would be nice if all the
archs did the same. As a first step, create a new generic function for the
'bd' command and make xtensa use it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

cmd/bdinfo.c

@@ -476,16 +476,22 @@ int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 
 #elif defined(CONFIG_XTENSA)
 
-int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+#define USE_GENERIC
-{
-	print_std_bdinfo(gd->bd);
-	return 0;
-}
 
 #else
  #error "a case for this architecture does not exist!"
 #endif
 
+/* Temporary check for archs that use generic bdinfo. Eventually all will */
+#ifdef USE_GENERIC
+int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+	print_std_bdinfo(gd->bd);
+
+	return 0;
+}
+#endif
+
 /* -------------------------------------------------------------------- */
 
 U_BOOT_CMD(