Delay FIT format check on sector based devices

Global FIT image operations like format check cannot be performed on
a first sector data, defer them to the point when whole FIT image was
uploaded to a system RAM.

Signed-off-by: Marian Balakowicz <m8@semihalf.com>
Partial ('cmd_nand' case) Acked-by: Grant Erickson <gerickson@nuovations.com>
NAND and DOC bits Acked-by: Scott Wood <scottwood@freescale.com>
diff --git a/common/cmd_scsi.c b/common/cmd_scsi.c
index 69028f3..e648f7d 100644
--- a/common/cmd_scsi.c
+++ b/common/cmd_scsi.c
@@ -212,7 +212,7 @@
 	image_header_t *hdr;
 	int rcode = 0;
 #if defined(CONFIG_FIT)
-	const void *fit_hdr;
+	const void *fit_hdr = NULL;
 #endif
 
 	switch (argc) {
@@ -291,10 +291,6 @@
 #if defined(CONFIG_FIT)
 	case IMAGE_FORMAT_FIT:
 		fit_hdr = (const void *)addr;
-		if (!fit_check_format (fit_hdr)) {
-			puts ("** Bad FIT image format\n");
-			return 1;
-		}
 		puts ("Fit image detected...\n");
 
 		cnt = fit_get_size (fit_hdr);
@@ -317,8 +313,13 @@
 
 #if defined(CONFIG_FIT)
 	/* This cannot be done earlier, we need complete FIT image in RAM first */
-	if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT)
-		fit_print_contents ((const void *)addr);
+	if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
+		if (!fit_check_format (fit_hdr)) {
+			puts ("** Bad FIT image format\n");
+			return 1;
+		}
+		fit_print_contents (fit_hdr);
+	}
 #endif
 
 	/* Loading ok, update default load address */