treewide: remove references to CREDITS ...

The CREDITS file was removed from barebox in 2015 by commit 6570288f2d97
("Remove the CREDITS file"). Remove references to it from several files.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-usb-loader: Fix i.MX8MM ...

Most things valid for the i.MX8MQ are needed for the i.MX8MM as well, so
add a common macro which returns true for both SoCs and use it where
appropriate. Also we have to search for the i.MX header in a bigger area
as it is at offset 33KiB.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-image: Add i.MX8MM support ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: Remove unused variable ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

habv4: imx change signing area from full to the executed image ...

the whole barebox with mbr and partition table were be signed by default.
change the signing to the executed image without signing the mbr,
partition table and header_gap by imx8mq
additional delete option full, from-dcdofs and skip-mbr

Signed-off-by: Maik Otto <m.otto@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: report file where error occurred ...

Especially when using #include directives in imxcfg files, error
messages can be hard to follow because line numbers differ between
preprocessor and source files. Teach the imx image generation tool about
preprocessing line number / file name directive, so it can give more
useful error messages. Instead of:

  error in line 11: Invalid argument

It now says:

  $barebox/arch/arm/boards/$som/flash-header-$board.imxcfg:5: Invalid argument

No change in compiled barebox binaries.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/imx8-hab'

IMX: do_hab calls strcat on uninitialised memory

scripts: imx: support signing for i.MX8MQ ...

Implement signing of the PBL for i.MX8MQ.
The imagesize is also modified to i.MX8MQ to only contain the PBL.
This obsoletes the max_load_size, which is kept for other boards
currently using it.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-image: Add support for max_load_size option ...

When an image is loaded to SRAM we can normally only load a part of the
full image, limited by the available space in SRAM. We currently load
the pblb image which is the executable part of the PBL without the
compressed barebox payload. We are going to link the compressed barebox
image into the pbl image though, so we can't see the desired load size
from outside the image anymore.

This adds a max_load_size option to set this size explicitly.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-image: fix first instruction in i.MX8MQ header ...

The instruction being patched in was a branch to 0x24000, instead of
the intended 0x9000. This doesn't matter when starting the image from
a regular boot source, but breaks starting the image via bootm, as we
rely on the jump in the first header instruction taking us to the
actual code.

As the code offset changes depending on the presence of the signed
HDMI firmware, compute the offet dynamically while building the image.

Fixes: 6d2132a9ded7 (scripts: imx-image: Add i.MX8MQ support)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/imx-hab'

scripts: imx: Support encrypted boot with HABv4 ...

.imxcfg configuration files support few more commands, all starting
with "hab_encrypt" string. That way it is possible to easily ignore
these commands, when image encryption was not requested. Hence, we can
use single .imxcfg file to generate signed and encrypted images in the
same build.

Images are encrypted in place by Freescale Code Signing Tool (cst),
using Data Encryption Key (DEK). This key needs to be encapsulated
by processor's hardware encryption engine to produce DEK blob, which
is unique for each device. DEK blob needs to be part of CSF area,
so we make enough space on the end of image to simply append it later,
e.g. during device flash procedure.

Introduced code was developed and tested on NXP i.MX6UL platform.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: add optional argument to hab_blocks command ...

hab_blocks command is used to specify image authentication blocks for
HAB. Currently it was configured to authenticate full barebox
image. However in case of booting from SD card and adding MBR
partition table, HAB authentication fails, as final boot image is
modified.

Add an optional argument to hab_blocks command, to select between
3 types of authentication areas:
 - full: whole barebox image will be authenticated (this is default to
   keep compatibility),
 - from-dcdofs: image area up to dcdofs is not authenticated, so any
   changes up to dcdofs are possible,
 - skip-mbr: image area from 440 to 512 bytes is excluded from beeing
   authenticated, which allows to add / modify MBR partition table
   after building barebox image.

Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: Add support for signed HDMI firmware ...

Boot header on i.MX8MQ SoC allows embedding signed HDMI firmware
images that are used by mask ROM code during the very early stages of
boot. Since providing that firmware appear to be necessary to enable
SoC's HDMI/DP functionality extend imx-image tool to support this
feature. To do that add code implementing "signed_hdmi_firmware"
keyword, which allows users to specify a path to a binary blob
containing all of the necessary headers and footers as well firmware
data and code sections (this is how such images are provieded by NXP)

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-image: Add i.MX8MQ support ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

i.MX/DCD compiler and interpreter: logic is different ...

Reading the manual more carefully discovers a different logic for the
DCD 'check' command. They use the term "until". In order to get the
manual and the software in sync, this change switches to the term
"until" as well. Changing must happen at compiler and interpreter level
to make it work.

Signed-off-by: Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: Add i.MX7 base architecture support ...

Signed-off-by Juergen Borleis <jbe@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/vybrid'

i.MX: scripts: Add "vf610" soc to imx-image ...

Needed in order to support Vybrid SoCs.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts imx-image: add DCD NOP command support ...

The DCD NOP command is available for all flash header v2 devices (i.MX28,
50, 53, 6 and 7).

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: add support for i.MX50 ...

Add imximg support for i.MX50 processors which use the i.MX flash
header v2 format.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ARM: i.MX: central SOC type definition ...

Move the definition of iMX CPU types to an individual file to allow
on-purpose inclusion. Eliminate magic number CPU type encoding in the
scripts/imx subdir using the new include file.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx-image: super_root_key command depends on header_version 1 ...

The Super Root Key pointer exclusively exists in flash header version 1
which is used for i.MX25, i.MX35 and i.MX51 SOC as described in freescales
AN4547 document. Simplify the code a little bit.

Signed-off-by: Alexander Kurz <akurz@blala.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/imx'

scripts: imx: support set_bits/clear_bits ...

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>

scripts: imx-image: Fix image size in flash header for i.MX35 ...

The i.MX35 needs additional 0x1000 byte. This quirk moved to the wrong
location during refactoring of imx-image for v2016.03.0.

Fixes: adade597593442 ""scripts: imx: Allow to create signed images")
Signed-off-by: Daniel Krueger <daniel.krueger@systec-electronic.com>
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

scripts: imx: Allow to create signed images ...

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>

scripts: imx: Create CSF files from imx config file ...

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>

scripts: imx: Drop double check ...

We have the same "if (*line == '\0')" check twice. Remove one of them.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>