I have not looked at the change in binary size but it seems to
be fine and still works on the device.
nandboot.c:61:3: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
magicNum = *((uint32_t *) nand_header);
^
nand.c:800:5: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
uart_send_hexnum(*((uint32_t *) &read_buf[k]), 8);
Before doing the NAND boot the 'I_ME' message will be sent and the
ubl will wait up to a second for a response. This interruption mode
can be disabled, e.g. when deploying the system in a publically
accessible system. Right now the possibility of easy recovery is
more important.
Holger Hans Peter Freyther