The FW loader reports and manages exactly two slots:
- slot 0: this is the slot for the application code to update
- slot 1: this is the slot, in which the FW loader is placed
The slot 1 is reported, so tools can fetch metadata about the
FW loader installed on the device.
Unfortunately, currently SMP-based FW loader allows to issue slot erase
command for the slot 1, effectively erasing the FW loader code that is
being executed.
This change correctly identifies the slot 1 as an active one, marking it
as used and blocking erase operation on that slot.
Signed-off-by: Tomasz Chyrowicz <tomasz.chyrowicz@nordicsemi.no>
26128ab73d