Remove unnecessary <sys/malloc.h>.

- Use todr_gettime_ymdhms / todr_settime_ymdhms.
- Allocate the todr_handle with the softc, not separately.

in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

convert the remaining sparc drivers to CFATTACH_DECL_NEW/cfdata_t/device_t.
(cgsix_obio.c was only partially converted with the rest of the cgsix code
when it was changed some time ago.)

#include <sys/bus.h> instead of <machine/bus.h>.

Remove `volatile' qualifier from argument types of
struct timeval passed to todr_gettime(9) and todr_settime(9).
We no longer have an ancient and volatile struct timeval `time'
global since we have s

Remove `volatile' qualifier from argument types of
struct timeval passed to todr_gettime(9) and todr_settime(9).
We no longer have an ancient and volatile struct timeval `time'
global since we have switched to MI timercounter(9) on all port.

XXX1: some of these RTC drivers still assume 32bit time_t
XXX2: some of these should be rewritten to use todr_[gs]ettime_ymdhms()
XXX3: todr(9) man page doesn't mention todr_[gs]ettime_ymdhms()

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- use device_t and cfdriver_t
- use device_private() and device_xname()
- use proper types or variables for device_t/softc

Remove unused todr_setcal/todr_getcal and all the assorted stub
implementations.

Catch up with __HAVE_GENERIC_TODR changes.
Compile-tested only.

ANSIify. Declare as static everything we don't need to export.

Add volatile to make rtc_{g|s}ettime match todr_chip_handle_t.

__KERNEL_RCSID()

The chip treats weekday 1 == Sunday, correct dt_wday adjustment logic
appropriately. NB: the old code would never write weekday zero that,
I've been told, might cause the RTC to reset.
Pointed out b

The chip treats weekday 1 == Sunday, correct dt_wday adjustment logic
appropriately. NB: the old code would never write weekday zero that,
I've been told, might cause the RTC to reset.
Pointed out by kenh.

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Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Fix error message.

Drop ebus_bus_map(), use plain bus_space_map() instead.

Switch to shared EBus headers in dev/ebus.

rtc (ds1287a) time of day clock at ebus.