Some SoCs allow to store multiple boot images on a device in order to
improve robustness. This adds a -r option to barebox_update to indicate
we do not want to make an update but instead repair/refresh an existing
image. Handlers which want to support this feature must set the
BBU_HANDLER_CAN_REFRESH flag during registration.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
With imd we can store metadata in barebox images. Let's use this
information to further verify that the image that is to be flashed
is the correct one. This patch extracts the device tree compatible
from the image and compares it with the one from the currently
running barebox. If it doesn't match the update is aborted with a
warning.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This adds a function to check for the existence of an update handler
based on the supplied bbu_data.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
bbu_data includes a devicefile information. Add the possibility to make
an update based on the given devicefile. This is in addition to the
normal search for a barebox update handler by its name.
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
The most standard update handler will simply copy a file to a device.
This can be shared across several users, so add a standard handler for
this operation.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It is a lot more user friendly if we give a bit more feedback.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
It was not possible to register another handler when already
a default handler is registered. Fix this.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Currently in-system update means to write an arbitrary file to
an arbitrary device. There is no sanity check if the flashed image
is of the right type or will fit onto the device. Furthermore some
SoCs need a special preparation step for their images before
flashing them.
This adds a barebox in-system update infrastructure. Boards can
register update handlers which know how to make the board bootable.
The available handlers can be listed to be able to select one,
different force levels give the user the chance to know it better.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
