mkimage: Allow updating the FIT timestamp
Normally the FIT timestamp is created the first time mkimage is run on a
FIT, when converting the source .its to the binary .fit file. This
corresponds to using the -f flag. But if the original input to mkimage is
a binary file (already compiled) then the timestamp is assumed to have
been set previously.
Add a -t flag to allow setting the timestamp in this case.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/doc/mkimage.1 b/doc/mkimage.1
index 3dcdced..fea5288 100644
--- a/doc/mkimage.1
+++ b/doc/mkimage.1
@@ -167,6 +167,15 @@
must be verified for the image to boot. Without this option, the verification
will be optional (useful for testing but not for release).
+.TP
+.BI "\-t
+Update the timestamp in the FIT.
+
+Normally the FIT timestamp is created the first time mkimage is run on a FIT,
+when converting the source .its to the binary .fit file. This corresponds to
+using the -f flag. But if the original input to mkimage is a binary file
+(already compiled) then the timestamp is assumed to have been set previously.
+
.SH EXAMPLES
List image information:
diff --git a/tools/fit_image.c b/tools/fit_image.c
index a082d93..df310b5 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -53,7 +53,7 @@
}
/* for first image creation, add a timestamp at offset 0 i.e., root */
- if (params->datafile) {
+ if (params->datafile || params->reset_timestamp) {
time_t time = imagetool_get_source_date(params->cmdname,
sbuf.st_mtime);
ret = fit_set_timestamp(ptr, 0, time);
diff --git a/tools/imagetool.h b/tools/imagetool.h
index f54809c..acbc48e 100644
--- a/tools/imagetool.h
+++ b/tools/imagetool.h
@@ -81,6 +81,7 @@
unsigned int external_offset; /* Add padding to external data */
int bl_len; /* Block length in byte for external data */
const char *engine_id; /* Engine to use for signing */
+ bool reset_timestamp; /* Reset the timestamp on an existing image */
};
/*
diff --git a/tools/mkimage.c b/tools/mkimage.c
index 7cb666d..43078d0 100644
--- a/tools/mkimage.c
+++ b/tools/mkimage.c
@@ -145,7 +145,7 @@
int opt;
while ((opt = getopt(argc, argv,
- "a:A:b:B:c:C:d:D:e:Ef:Fk:i:K:ln:N:p:O:rR:qsT:vVx")) != -1) {
+ "a:A:b:B:c:C:d:D:e:Ef:Fk:i:K:ln:N:p:O:rR:qstT:vVx")) != -1) {
switch (opt) {
case 'a':
params.addr = strtoull(optarg, &ptr, 16);
@@ -269,6 +269,9 @@
case 's':
params.skipcpy = 1;
break;
+ case 't':
+ params.reset_timestamp = 1;
+ break;
case 'T':
if (strcmp(optarg, "list") == 0) {
show_valid_options(IH_TYPE);