mkimage: Add -c option to specify a comment for key signing

[karo-tx-uboot.git] / tools / mkimage.c

diff --git a/tools/mkimage.c b/tools/mkimage.c
index e2b82d0c5c360af0b2fc9751db4f1ee85c46986e..b3b45a47a3f14e79c9f5213ad57e9d800ec19965 100644 (file)
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -183,6 +183,11 @@ main (int argc, char **argv)
                                        genimg_get_arch_id (*++argv)) < 0)
                                        usage ();
                                goto NXTARG;
+                       case 'c':
+                               if (--argc <= 0)
+                                       usage();
+                               params.comment = *++argv;
+                               goto NXTARG;
                        case 'C':
                                if ((--argc <= 0) ||
                                        (params.comp =
@@ -640,9 +645,10 @@ usage ()
        fprintf(stderr, "          -D => set options for device tree compiler\n"
                        "          -f => input filename for FIT source\n");
 #ifdef CONFIG_FIT_SIGNATURE
-       fprintf(stderr, "Signing / verified boot options: [-k keydir] [-K dtb]\n"
+       fprintf(stderr, "Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>]\n"
                        "          -k => set directory containing private keys\n"
                        "          -K => write public keys to this .dtb file\n"
+                       "          -c => add comment in signature node\n"
                        "          -F => re-sign existing FIT image\n");
 #else
        fprintf(stderr, "Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");