Pass the sb_image_ctx context into the cryptographic functions
instead of passing the standalone cryptographic structures. This
makes the code a little cleaner.
Signed-off-by: Marek Vasut <marex@denx.de>

Swap the malloc upwards as it can now no longer depends on SB header
crypto init which filled the SB header with additional data. Now
the SB header crypto operation and malloc of the image are truly
separate entities. This also groups the SB header crypto operation
together nicely.
Signed-off-by: Marek Vasut <marex@denx.de>

Calculate the size of the section block while reading it. This
value can be later reused when calculating the placement of the
final image blocks.
Signed-off-by: Marek Vasut <marex@denx.de>

This patch loads a file associated with a LOAD command and puts
it correctly into the tree-like structure representing the SB image.
Note that the loading operation is now done twice, but this will be
fixed shortly.
Signed-off-by: Marek Vasut <marex@denx.de>

Rework the mechanism behind generating the SB image header generation.
This also puts down the groundwork for further rework of the mechanism
for contructing the image.

The basic idea here is to parse the whole image, construct a tree-like
structure in RAM that represents the image and operate with it throughout
the whole life-cycle of the program. Right now, this only serves the
purpose of filling the SB image header, but this will change in subsequent
patches.

NOTE that this patch introduces a lot of FIXMEs, since this is a huge
rework of the whole tool. This patch revealed a lot of weak spots too.
Signed-off-by: Marek Vasut <marex@denx.de>

There is only one SB image header, so make it part of the image
context instead of having separate variable for this purpose.
Moreover, it's now possible to constify the SB header template.
Signed-off-by: Marek Vasut <marex@denx.de>

The program uses many variables throughout it's operation, implement
a program context structure to hold these variables.
Signed-off-by: Marek Vasut <marex@denx.de>

Do not abuse the start of image directly as the CBC-MAC IV, but
create separate overlaid field for this purpose.
Signed-off-by: Marek Vasut <marex@denx.de>

Implement a function that allocates space for an instructions
and fills in the fields on a per-command basis. Note that some
commands are still not implemented.
Signed-off-by: Marek Vasut <marex@denx.de>

Certain fields of the SB header are only available since v1.1
of the SB file format, document that.
Signed-off-by: Marek Vasut <marex@denx.de>

This patch adds all possible command flags that can be used with the
SB file format.
Signed-off-by: Marek Vasut <marex@denx.de>

Add details about the fields for all the commands, moreover align
the names of the fields with the documentation where it was not
confusing.
Signed-off-by: Marek Vasut <marex@denx.de>

Fill in the full table of SB command tags as they are listed in the
SB image specification.
Signed-off-by: Marek Vasut <marex@denx.de>

The SB image format specification calls the command identifier
a tag, so align the source this way. Also rename the commands
so they match the SB format specification.
Signed-off-by: Marek Vasut <marex@denx.de>

This will allow GCC to lint the sources even more.
Signed-off-by: Marek Vasut <marex@denx.de>

The type must be unsigned int, otherwise gcc -Wextra produces a warning.
Signed-off-by: Marek Vasut <marex@denx.de>

Markus Hubig authored Jun 05, 2013 and Marek Vasut committed Jun 05, 2013

According to http://webpages.charter.net/ppluzhnikov/linker.html

 , the
order of the libraries linked with the resulting executable on the linker
command line does matter and can cause linker to be unable to resolve
symbols if incorrect.
Signed-off-by: Markus Hubig <mhubig@imko.de>

Add support for i.MX23 u-boot.sb generation.
Signed-off-by: Marek Vasut <marex@denx.de>

Parse command line options so the input files from which u-boot.sb
is generated can be configured at runtime using these options.
Signed-off-by: Marek Vasut <marex@denx.de>

Add missing return value check for sb_load_binary() call.
Signed-off-by: Marek Vasut <marex@denx.de>

Add MX28 u-boot.sb SB image generator.

Tested on DENX M28EVK by generating u-boot.sb and then loading it
via mxsldr.
Signed-off-by: Marek Vasut <marex@denx.de>