diff -ruNb u-boot-original/common/cmd_mem.c u-boot-mem/common/cmd_mem.c
--- u-boot-original/common/cmd_mem.c	2004-03-30 14:37:28.663931328 +0300
+++ u-boot-mem/common/cmd_mem.c	2004-03-30 15:37:08.092775432 +0300
@@ -968,28 +968,52 @@
 	ulong addr, length;
 	ulong crc;
 	ulong *ptr;
+	ulong vcrc; 
+	int verify;
+	int ac;
+	char **av;
 
 	if (argc < 3) {
+  usage:
 		printf ("Usage:\n%s\n", cmdtp->usage);
 		return 1;
 	}
 
-	addr = simple_strtoul (argv[1], NULL, 16);
-	addr += base_address;
+	av = argv + 1;
+	ac = argc - 1;
+	if (strcmp(*av, "-v") == 0) {
+		verify = 1;
+		av++;
+		ac--;
+		if (ac < 3)
+			goto usage;
+	} else
+		verify = 0;
 
-	length = simple_strtoul (argv[2], NULL, 16);
+	addr = simple_strtoul(*av++, NULL, 16);
+	addr += base_address;
+	length = simple_strtoul(*av++, NULL, 16);
 
-	crc = crc32 (0, (const uchar *) addr, length);
+	crc = crc32(0, (const uchar *) addr, length);
 
+	if (!verify) {
 	printf ("CRC32 for %08lx ... %08lx ==> %08lx\n",
 			addr, addr + length - 1, crc);
-
-	if (argc > 3) {
-		ptr = (ulong *) simple_strtoul (argv[3], NULL, 16);
+		if (ac > 2) {
+			ptr = (ulong *) simple_strtoul (*av++, NULL, 16);
 		*ptr = crc;
 	}
+	} else {
+		vcrc = simple_strtoul(*av++, NULL, 16);
+		if (vcrc != crc) {
+			printf ("CRC32 for %08lx ... %08lx ==> %08lx != %08lx ** ERROR **\n",
+					addr, addr + length - 1, crc, vcrc);
+			return 1;
+		}
+	}
 
 	return 0;
+
 }
 
 /**************************************************/
@@ -1033,7 +1057,7 @@
 );
 
 U_BOOT_CMD(
-	crc32,    4,    1,     do_mem_crc,
+	crc32,    5,    1,     do_mem_crc,
 	"crc32   - checksum calculation\n",
 	"address count [addr]\n    - compute CRC32 checksum [save at addr]\n"
 );