As a starting point, add support for providing random data, if requested
by the OS. Also add ASLR, as a placeholder for now.
Signed-off-by: Simon Glass <sjg@chromium.org>
(fixed up to use uclass_first_device_err() instead)
Add support for VBE simple, which permits firmware update of a single
image stored in MMC or another block device.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present there is a confusing array of functions that handle the
device tree fix-ups needed for booting an OS. We should be able to switch
to using events to clean this up.
As a first step, create a new event type and call it from the standard
place.
Note that this event uses the ofnode interface only, since this can
support live tree which is more efficient when making lots of updates.
Signed-off-by: Simon Glass <sjg@chromium.org>
For debugging and dicoverability it is useful to be able to see a list of
each event spy in a U-Boot ELF file. Add a script which shows this, along
with the event type and the source location. This makes events a little
easier to use than weak functions, for example.
Add a basic sandbox test as well. We could provide a test for other
boards, but for now, few use events.
Signed-off-by: Simon Glass <sjg@chromium.org>
