Is the address of memory mapped io programable ?
I Know it's hard-wired by hardware in old days.
on morden pc, is it can programable?
《Understanding linux kernel》said:
bios establishes the mapping during bootstraping, and report to the os kernel its initial memory address?
i am not sure what it means:
option 1: it's address is programable.
option 2: it's address is hardcode by hardware, it's just be reported to os by bios; because only bios know where it had be hard-wired.
So, is the address programable