generic_board: do not set gd->fdt_blob unless CONFIG_OF_CONTROL=y

gd->fdt_blob is used for FDT control of U-Boot.
If CONFIG_OF_CONTROL is not defined, it is useless.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>

diff --git a/common/board_f.c b/common/board_f.c
index 5f33bce..e6aa298 100644 (file)
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -341,21 +341,23 @@ static int setup_ram_buf(void)
 
 static int setup_fdt(void)
 {
-#ifdef CONFIG_OF_EMBED
+#ifdef CONFIG_OF_CONTROL
+# ifdef CONFIG_OF_EMBED
        /* Get a pointer to the FDT */
        gd->fdt_blob = __dtb_dt_begin;
-#elif defined CONFIG_OF_SEPARATE
+# elif defined CONFIG_OF_SEPARATE
        /* FDT is at end of image */
        gd->fdt_blob = (ulong *)&_end;
-#elif defined(CONFIG_OF_HOSTFILE)
+# elif defined(CONFIG_OF_HOSTFILE)
        if (read_fdt_from_file()) {
                puts("Failed to read control FDT\n");
                return -1;
        }
-#endif
+# endif
        /* Allow the early environment to override the fdt address */
        gd->fdt_blob = (void *)getenv_ulong("fdtcontroladdr", 16,
                                                (uintptr_t)gd->fdt_blob);
+#endif
        return 0;
 }