mkimage: Document misc options

Over the years, several options have not made it into the help message.
Document them. Do the same for the man page.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
This commit is contained in:
Sean Anderson 2022-04-08 16:08:39 -04:00 committed by Heinrich Schuchardt
parent ecd4e5cf18
commit deb2638aa0
2 changed files with 46 additions and 5 deletions

View file

@ -53,6 +53,10 @@ Parse image file as type.
Pass \-h as the image to see the list of supported image type.
Without this option image type is autodetected.
.TP
.BI "\-q"
Quiet. Don't print the image header on successful verification.
.P
.B Create old legacy image:
@ -91,6 +95,11 @@ List the contents of an image.
.BI "\-n [" "image name" "]"
Set image name to 'image name'.
.TP
.BI "\-R [" "secondary image name" "]"
Some image types support a second image for additional data. For these types,
use \-R to specify this second image.
.TP
.BI "\-d [" "image data file" "]"
Use image data from 'image data file'.
@ -99,6 +108,15 @@ Use image data from 'image data file'.
.BI "\-x"
Set XIP (execute in place) flag.
.TP
.BI "\-s"
Create an image with no data. The header will be created, but the image itself
will not contain data (such as U-Boot or any specified kernel).
.TP
.BI "\-v"
Verbose. Print file names as they are added to the image.
.P
.B Create FIT image:
@ -126,6 +144,11 @@ in each image will be replaced with 'data-offset' and 'data-size' properties.
A 'data-offset' of 0 indicates that it starts in the first (4-byte aligned)
byte after the FIT.
.TP
.BI "\-B [" "alignment" "]"
The alignment, in hexadecimal, that external data will be aligned to. This
option only has an effect when \-E is specified.
.TP
.BI "\-f [" "image tree source file" " | " "auto" "]"
Image tree source file that describes the structure and contents of the
@ -161,6 +184,11 @@ the corresponding public key is written into this file for for run-time
verification. Typically the file here is the device tree binary used by
CONFIG_OF_CONTROL in U-Boot.
.TP
.BI "\-G [" "key_file" "]"
Specifies the private key file to use when signing. This option may be used
instead of \-k.
.TP
.BI "\-o [" "signing algorithm" "]"
Specifies the algorithm to be used for signing a FIT image. The default is
@ -173,11 +201,17 @@ a 'data-offset' property defining the offset from the end of the FIT, \-p will
use 'data-position' as the absolute position from the base of the FIT.
.TP
.BI "\-r
.BI "\-r"
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 "\-N [" "engine" "]"
The openssl engine to use when signing and verifying the image. For a complete list of
available engines, refer to
.BR engine (1).
.TP
.BI "\-t
Update the timestamp in the FIT.

View file

@ -84,7 +84,8 @@ static void usage(const char *msg)
fprintf(stderr, "Error: %s\n", msg);
fprintf(stderr, "Usage: %s [-T type] -l image\n"
" -l ==> list image header information\n"
" -T ==> parse image file as 'type'\n",
" -T ==> parse image file as 'type'\n"
" -q ==> quiet\n",
params.cmdname);
fprintf(stderr,
" %s [-x] -A arch -O os -T type -C comp -a addr -e ep -n name -d data_file[:data_file...] image\n"
@ -95,8 +96,11 @@ static void usage(const char *msg)
" -a ==> set load address to 'addr' (hex)\n"
" -e ==> set entry point to 'ep' (hex)\n"
" -n ==> set image name to 'name'\n"
" -R ==> set second image name to 'name'\n"
" -d ==> use image data from 'datafile'\n"
" -x ==> set XIP (execute in place)\n",
" -x ==> set XIP (execute in place)\n"
" -s ==> create an image with no data\n"
" -v ==> verbose\n",
params.cmdname);
fprintf(stderr,
" %s [-D dtc_options] [-f fit-image.its|-f auto|-F] [-b <dtb> [-b <dtb>]] [-E] [-B size] [-i <ramdisk.cpio.gz>] fit-image\n"
@ -107,7 +111,9 @@ static void usage(const char *msg)
" -f => input filename for FIT source\n"
" -i => input filename for ramdisk file\n"
" -E => place data outside of the FIT structure\n"
" -B => align size in hex for FIT structure and header\n");
" -B => align size in hex for FIT structure and header\n"
" -b => append the device tree binary to the FIT\n"
" -t => update the timestamp in the FIT\n");
#ifdef CONFIG_FIT_SIGNATURE
fprintf(stderr,
"Signing / verified boot options: [-k keydir] [-K dtb] [ -c <comment>] [-p addr] [-r] [-N engine]\n"
@ -118,7 +124,8 @@ static void usage(const char *msg)
" -F => re-sign existing FIT image\n"
" -p => place external data at a static position\n"
" -r => mark keys used as 'required' in dtb\n"
" -N => openssl engine to use for signing\n");
" -N => openssl engine to use for signing\n"
" -o => algorithm to use for signing\n");
#else
fprintf(stderr,
"Signing / verified boot not supported (CONFIG_FIT_SIGNATURE undefined)\n");