Re-Implement the DCD v2 processing.
Processing for the DCD write command went into a separate function enabling
the over-all DCD processing to handle check, nop and unlock commands as well.
The trivial NOP command is supported right away.
Further changes: put in some data consistancy checks and error handling, do
structured member access and proper endianess handling and direct error
messages to stderr.
Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The i.MX SoCs support setting bits and clearing bits in their DCD table.
This adds commands for these in the imx-image tool.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This patch allows to call CST directly from imx-image to create signed
images. CST is called whenever the config file contains the hab <str>
commands which means a CSF is generated.
Calling CST requires some quirks. First of all CST returns successfully
whenever a CSF exists, no matter is the CSF actually contains something
sensible or not. So to detect if CST has been called successfully we
have to check if it generated output, not if it returned successfully.
Then CST uses csfsig.bin as a temporary file which breaks when the tool
is called multiple times at once, something which often happens in
parallel builds. We therefore have to lock accesses to this file using
flock().
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This is the first step to support creating signed images directly
with the imx-image tool. i.MX images must be signed using the Freescale
CST tool. CST needs informations already present in the imx-image tool,
so it's convenient to call CST directly from imx-image.
CST takes CSF files (Command Sequence Files) as input. This patch
supports generating CSF files from the imx-image configuration file.
This adds three new commands to the config file:
hab <str>: All options to the hab command are directly passed through to
the CSF.
hab_blocks: This generates the "Blocks =" line in the CSF. This is the
place where the CSF needs information which is contained in
the imx-image tool: The image size, the image filename and
the load address.
super_root_key <file>: For HABv3 the super root key hash is needed in
the i.MX flash header. This command is used to
specify the path to the super root key. Needed
for HABv3 only.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Both imx-image and imx-usb-loader use their own variants of the
i.MX flash header definitions. Consolidate them to avoid code
duplication.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Alexander Kurz
Sascha Hauer