bootm: Reduce the unnecessary memmove

Although load address and image start address are same address, bootm command always does memmove. That is unnecessary memmove and can be taken few milliseconds (about 500 msec to 1000 msec). If skip this memmove, we can reduce the boot time. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

bootm: Reduce the unnecessary memmove
Although load address and image start address are same address, bootm command always does memmove. That is unnecessary memmove and can be taken few milliseconds (about 500 msec to 1000 msec). If skip this memmove, we can reduce the boot time. Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Minkyu Kang · Wolfgang Denk
1 parent 670cbde8da
Showing 1 changed file with 4 additions and 2 deletions Side-by-side Diff
common/cmd_bootm.c
@@ -340,8 +340,10 @@
 		} else {
 			printf ("   Loading %s ... ", type_name);
  
-			memmove_wd ((void *)load,
-				   (void *)image_start, image_len, CHUNKSZ);
+			if (load != image_start) {
+				memmove_wd ((void *)load,
+						(void *)image_start, image_len, CHUNKSZ);
+			}
 		}
 		*load_end = load + image_len;
 		puts("OK\n");
...	...	@@ -340,8 +340,10 @@
340	340	} else {
341	341	printf (" Loading %s ... ", type_name);
342	342
343		- memmove_wd ((void *)load,
344		- (void *)image_start, image_len, CHUNKSZ);
	343	+ if (load != image_start) {
	344	+ memmove_wd ((void *)load,
	345	+ (void *)image_start, image_len, CHUNKSZ);
	346	+ }
345	347	}
346	348	*load_end = load + image_len;
347	349	puts("OK\n");