MFP(4) | Device Drivers Manual (x68k) | MFP(4) |
mfp
— X68K
Multi-function Peripherals
mfp0 at intio0 addr 0xe88000 size 0x2000 intr
64
mfp
drives Motorola MC68901 MFP
(Multi-function Peripheral). mfp
driver is always
required to run the NetBSD/x68k kernel, because it
is connected to important devices such as the display controller, and
provides fundamental functions like the system clock tick and interrupt
controller. Since mfp
provides many functions, most
of the jobs as a device driver is done by its child drivers such as
kbd(4) and
clock(4).
mfp
driver itself only provides the common way to
access its registers and a few utility functions for other non-child
drivers.
Machine-dependent part and machine-independent part should be split.
February 17, 2017 | NetBSD 10.99 |