Peripheral registers on MPC83xx-series chips are declared in
immap_83xx.h as a set of structs that ultimately fill the entire MMIO
space of 1 MiB. This patch introduces a compile-time check of the size
of each peripheral struct. The purpose of these checks is two-fold:
1. To quickly tell readers of the code the total size of each struct
2. To verify that the size does not change when a struct is edited
If the size of a peripheral struct were to change by a few bytes due
to an editing error, the result would be mayhem for all following
peripherals, because all offsets would shift by the amount of the error.
All new checks have been compile-tested.
Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
0b97991fa0