diff options
Diffstat (limited to 'common/cmd_mem.c')
| -rw-r--r-- | common/cmd_mem.c | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/common/cmd_mem.c b/common/cmd_mem.c index f18bfde..8430298 100644 --- a/common/cmd_mem.c +++ b/common/cmd_mem.c @@ -963,6 +963,8 @@ mod_mem(cmd_tbl_t *cmdtp, int incrflag, int flag, int argc, char *argv[]) return 0; } +#ifndef CONFIG_CRC32_VERIFY + int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) { ulong addr, length; @@ -992,6 +994,62 @@ int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) return 0; } +#else /* CONFIG_CRC32_VERIFY */ + +int do_mem_crc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + 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; + } + + av = argv + 1; + ac = argc - 1; + if (strcmp(*av, "-v") == 0) { + verify = 1; + av++; + ac--; + if (ac < 3) + goto usage; + } else + verify = 0; + + addr = simple_strtoul(*av++, NULL, 16); + addr += base_address; + length = simple_strtoul(*av++, NULL, 16); + + crc = crc32(0, (const uchar *) addr, length); + + if (!verify) { + printf ("CRC32 for %08lx ... %08lx ==> %08lx\n", + addr, addr + length - 1, crc); + 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; + +} +#endif /* CONFIG_CRC32_VERIFY */ + /**************************************************/ #if (CONFIG_COMMANDS & CFG_CMD_MEMORY) U_BOOT_CMD( @@ -1032,12 +1090,25 @@ U_BOOT_CMD( "[.b, .w, .l] addr1 addr2 count\n - compare memory\n" ); +#ifndef CONFIG_CRC32_VERIFY + U_BOOT_CMD( crc32, 4, 1, do_mem_crc, "crc32 - checksum calculation\n", "address count [addr]\n - compute CRC32 checksum [save at addr]\n" ); +#else /* CONFIG_CRC32_VERIFY */ + +U_BOOT_CMD( + crc32, 5, 1, do_mem_crc, + "crc32 - checksum calculation\n", + "address count [addr]\n - compute CRC32 checksum [save at addr]\n" + "-v address count crc\n - verify crc of memory area\n" +); + +#endif /* CONFIG_CRC32_VERIFY */ + U_BOOT_CMD( base, 2, 1, do_mem_base, "base - print or set address offset\n", |