Add a test for the dm drivers command. Also fix a null pointer dereference
revealed by said test.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

We don't need 5KB to test things out. A smaller size makes it easier to
look at the FIT with fdtdump.

Signed-off-by: Simon Glass <sjg@chromium.org>

This code is repeated so move it into a function with a parameter.

Signed-off-by: Simon Glass <sjg@chromium.org>

Fix various minor things noticed by pylint.

Signed-off-by: Simon Glass <sjg@chromium.org>

Fix some long lines and comments. Use a distinct name for the
'required key' test.

Signed-off-by: Simon Glass <sjg@chromium.org>

This test is actually made up of five separate tests. Split them out so
that they appear as separate tests.

Unfortunately this restarts U-Boot multiple times which adds about a
second to the already-long vboot test, about 8 seconds total on my
machine. We could add a special 'teardown' test afterwards but if the
tests are executed out of order that would not work.

Changing test_vboot into a class causes it not to be discovered and makes
it different from all other tests.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add a check to make sure that it is not possible to add a new
configuration and use the hashed nodes and hash of another configuration.

Signed-off-by: Simon Glass <sjg@chromium.org>

This tool only uses the last -k parameter provided. Drop the earlier one
since it has no effect.

Signed-off-by: Simon Glass <sjg@chromium.org>

With CONFIG_OF_CONTROL environment variable $fdtcontroladdr is not defined
and test_efi_grub_net() fails.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

With CONFIG_OF_CONTROL environment variable $fdtcontroladdr is not defined
and test_efi_helloworld_net() fails.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>