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mkimage: Allow updating the FIT timestamp

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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>
This commit is contained in:
Simon Glass
2020-07-09 18:39:43 -06:00
parent b3295fd4e3
commit 152b246298
4 changed files with 15 additions and 2 deletions
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doc/mkimage.1
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@@ -167,6 +167,15 @@ Specifies that keys used to sign the FIT are required. This means that they
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: