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-rw-r--r--common/cmd_mem.c71
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",