Hello
The following patch add a -v (verify) flag to the crc32 command.
Regards
Pantelis
cmd_mem.c | 40 ++++++++++++++++++++++++++++++++-------- 1 files changed, 32 insertions(+), 8 deletions(-)
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" );