Normalize how motoi2c controllers are attached.

Move I2C node adjustment stuff to autoconf.c from iic_eumb.c for
the ease of maintainance.

make sure to have the correct I2C TOD attached for KURO-BOX/T4.

Configure pcf8563rtc for nhnas models.

branches: 1.16.2; 1.16.6;
#include <sys/bus.h> instead of <machine/bus.h>.

struct device * -> device_t
struct cfdata * -> cfdata_t
use device accessors, use device_private.
some softc/device_t splits (macppc needs a bunch more)
aprint*_dev used considerably more

branches: 1.14.2;
Add Iomega Storcenter dsrtc device (DS1337).

Minor format knots; sort a model list in alphabetical order and adjust
spacing.

Add more known I2C devices:
dlink: strtc
qnap: s390rtc

Build and use "i2c-child-devices" property to choose the correct RTC
chip among various models.

branches: 1.10.2;
Rewritten to take advantage of the new MI motoi2c code.

Update copyright notice. This code was completely replaced with
Frank Wille's effort and has no substance made by me anymore.

Rewrote most of the code to make the 8245 I2C module finally work.
Tested with a RICOH RS5C372 RTC on a Synology DS-101g+ and Kurobox.
Reviewed by <nisimura>.

branches: 1.7.2; 1.7.4;
Ansify function definitions w/o arguments. Generated with sed.

branches: 1.6.2;
Add support for i2c quick_{read,write} protocols.

OK'd by nisimura@

branches: 1.5.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.4.2;
bootinfo usage and porting guide.
- Kernel expects a ptr to bootinfo structure in arg3.
- The bootinfo definition is in include/bootinfo.h
- CLOCK and CONSOLE designations are important during initial bringup
efforts. machdep.c consults memory controller parameters when no
MEMORY was specified.
- autoconf.c determines ROOTDEVICE and BOOTPATH.
- target differences

branches: 1.3.2;
add a prelimary implementation of MPC8245 EUMB I2C.

branches: 1.2.2; 1.2.4; 1.2.8; 1.2.22;
Merge the ppcoea-renovation branch to HEAD.

This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.

TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.

NOTES:
pmppc was removed as an arch, and moved to a evbppc target.

branches: 1.1.2; 1.1.6; 1.1.8; 1.1.10;
file iic_eumb.c was initially added on branch ppcoea-renovation.