Move mfokclock(4) from loongson to sys/dev/i2c so that it be used by more
platforms than just loongson. Rename it to mfokrtc(4) for consistency with
other RTC drivers. Make it match on st,m41t83, since that was the chip for
which the driver was written for. More compatible strings can be added for
each chip of the series verified to behave the same.

Discussed with kettenis@
Compile tested on loongson by kn@
Tested on loongson by and ok visa@

Split early startup code out of locore.S into locore0.S. Adjust link
run so that this locore0.o is always at the start of the executable.
But randomize the link order of all other .o files in the kernel, so
that their exec/rodata/data/bss segments land all over the place.

Late during kernel boot, smash the startup code with traps so that
it does not point to the other randomly placed code. It has be smashed,
because loongson runs in the kseg0 space.

As a result, the internal layout of every newly build bsd kernel is
different from past kernels. Internal relative offsets are not known
to an outside attacker.

Ramdisk kernels cannot be compiled like this, because they are gzip'd.
When the internal pointer references change, the compression dictionary
bloats and results in poorer compression.

Add drivers for PCI host bridge and built-in UARTs on Loongson 3A,
and put the pieces together by platform glue.

Feedback from miod@

Add interrupt handling routines for Loongson 3A.

Feedback from miod@

include files.hid before files.i2c

Move HID support files out of dev/usb into new dev/hid directory

These files aren't USB-specific and were used by the previous
Bluetooth implementation, and will be used by the upcoming
HID-over-i2C implementation

ok deraadt
previous version ok kettenis and mpi

Some bits for Loongson 3A support.

unify the mutex implementations on all the mips64 platforms.

this basically copies the sgi implementation to mips64 and removes
it from the rest. this way they get an optimised UP mutex implementation
and correct asserts on all platforms.

ok miod@ jmatthew@

"It's not the years, honey; it's the mileage."

bluetooth support doesn't work and isn't going anywhere. the current
design is a dead end, and should not be the basis for any future support.
general consensus says to whack it so as to not mislead the unwary.

remove iop(4) driver. it is entirely unmaintained and supports something
which basically doesn't exist at all.
reminded about it by brad

Include files.agp and files.drm from files.pci. Makes sure "drm.h" gets
generated on all architectures that support pci, making alpha and loongson
compile again.

ok todd@, miod@ seemed to agree with the idea

Start working on hibernate support for Loongson

This is work in progress. Nothing to test or play with for now.
Commiting it now so that I can work on it in-tree.

Okay miod@

Loongson: Replace the system clock provided by the CPU with a GLX MFGPT.

CPU throttling was not possible due to the fact that the system clock
was the CPU clock. So slowing down the CPU would also slow down the
passing of time.

This commit adds a driver for the MFGPT1 clock from the AMD companion
chip found on lemote and hooks it up as the system clock.

It also changes the frequency value of hz from the default, which was
100, to 128. That's because the scaling on MFGPT clocks is represented
by powers of two.

Okay miod@.

Move glxpcib(4) to MI land unifying the two MD drivers.

Specific features of the companion chip will be handled in MD land.

Okay deraadt@.

Let non-ykbec kernels link again.

Huge work-in-progress commit to support Loongson 2E-based evaluation boards
with a VIA 686 southbridge.

Features:
- 686 setup code (no thanks to PMON for not initializing the beast).
- work in progress ISA interrupt handling code.
- support for vga(4) compatible devices as console, in PC-compatible text mode.
- move legacy (ISA) support code out of bonito(4) to make things clearer.
- support more than 256MB on 2E-based systems.

Tested on a generic 2E-based evaluation board by someone who wishes to remain
anonymous; you know who you are, thank you very much for testing.

- add and enable bluetooth

ok miod@ otto@

Minimal frame buffer driver for the SiS 315 found on Lemote Fuloong systems.
Currently unable to change video modes or provide any form of acceleration,
so you are stuck in a 640x400x8 mode, but at least people scared of serial
consoles will get a chance to use their Fuloongs now.

Tested by otto@ (early developments) and jasper@ (final version)

Basic apm(4), providing battery/power status and events. apm(4) is the
generic part, ykbec(4) provides the device specific parts. Other
battery/power status drivers can easily hook to adb(4). With help
from miod@; ok matthieu@ miod@ jasper@

Subdevice interrupt dispatcher for voyager(4) and ohci@voyager device, only
allowed to match on old gdium artwork, as newer artwork have nothing
connected to the usb pins, and this causes the empty bus probe to stall the
boot a few seconds.

Minimal support for the ST7 chip found on Gdium Liberty, brings us battery
information and a few other things not yet wired.

ykbec(4), a driver to read fan, temperature and battery status using
the kb3310b embedded controller chip on the yeeloong. With help & ok miod@

Add a driver for the M41T8x time-of-day clock chips, such as the M41T83
found on the Gdium Liberty. These machines finally no longer complain about
a missing todclock.

Add a master driver for the VoyagerGX SM502 chip found on the Gdium, which is
not only a framebuffer. Allow smfb to attach either at pci or at voyager.

Add gpio@voyager and gdiumiic@gpio, a derivative of the MI gpioiic driver.
This allows us to get lmtemp@iic on the Lemote; the next step being to
write a driver for the i2c todclock chip found on the same bus.

Blind support for the EMTEC Gdium Liberty netbook. Per-platform configuration
is moved to specific files, and a pointer to the key configuration structure
is now kept in struct sys_config.
bonito(4) interrupt handling is split, to allow PCI+Legacy interrupt systems
(Lemote Yeelong) and PCI-only Legacy-free systems (Gdium) to coexist
peacefully.

branches: 1.1.1;
Initial revision

Split early startup code out of locore.S into locore0.S. Adjust link
run so that this locore0.o is always at the start of the executable.
But randomize the link order of all other .o files in the kernel, so
that their exec/rodata/data/bss segments land all over the place.

Late during kernel boot, smash the startup code with traps so that
it does not point to the other randomly placed code. It has be smashed,
because loongson runs in the kseg0 space.

As a result, the internal layout of every newly build bsd kernel is
different from past kernels. Internal relative offsets are not known
to an outside attacker.

Ramdisk kernels cannot be compiled like this, because they are gzip'd.
When the internal pointer references change, the compression dictionary
bloats and results in poorer compression.

Add drivers for PCI host bridge and built-in UARTs on Loongson 3A,
and put the pieces together by platform glue.

Feedback from miod@

Add interrupt handling routines for Loongson 3A.

Feedback from miod@

include files.hid before files.i2c

Move HID support files out of dev/usb into new dev/hid directory

These files aren't USB-specific and were used by the previous
Bluetooth implementation, and will be used by the upcoming
HID-over-i2C implementation

ok deraadt
previous version ok kettenis and mpi

Some bits for Loongson 3A support.

unify the mutex implementations on all the mips64 platforms.

this basically copies the sgi implementation to mips64 and removes
it from the rest. this way they get an optimised UP mutex implementation
and correct asserts on all platforms.

ok miod@ jmatthew@

"It's not the years, honey; it's the mileage."

bluetooth support doesn't work and isn't going anywhere. the current
design is a dead end, and should not be the basis for any future support.
general consensus says to whack it so as to not mislead the unwary.

remove iop(4) driver. it is entirely unmaintained and supports something
which basically doesn't exist at all.
reminded about it by brad

Include files.agp and files.drm from files.pci. Makes sure "drm.h" gets
generated on all architectures that support pci, making alpha and loongson
compile again.

ok todd@, miod@ seemed to agree with the idea

Start working on hibernate support for Loongson

This is work in progress. Nothing to test or play with for now.
Commiting it now so that I can work on it in-tree.

Okay miod@

Loongson: Replace the system clock provided by the CPU with a GLX MFGPT.

CPU throttling was not possible due to the fact that the system clock
was the CPU clock. So slowing down the CPU would also slow down the
passing of time.

This commit adds a driver for the MFGPT1 clock from the AMD companion
chip found on lemote and hooks it up as the system clock.

It also changes the frequency value of hz from the default, which was
100, to 128. That's because the scaling on MFGPT clocks is represented
by powers of two.

Okay miod@.

Move glxpcib(4) to MI land unifying the two MD drivers.

Specific features of the companion chip will be handled in MD land.

Okay deraadt@.

Let non-ykbec kernels link again.

Huge work-in-progress commit to support Loongson 2E-based evaluation boards
with a VIA 686 southbridge.

Features:
- 686 setup code (no thanks to PMON for not initializing the beast).
- work in progress ISA interrupt handling code.
- support for vga(4) compatible devices as console, in PC-compatible text mode.
- move legacy (ISA) support code out of bonito(4) to make things clearer.
- support more than 256MB on 2E-based systems.

Tested on a generic 2E-based evaluation board by someone who wishes to remain
anonymous; you know who you are, thank you very much for testing.

- add and enable bluetooth

ok miod@ otto@

Minimal frame buffer driver for the SiS 315 found on Lemote Fuloong systems.
Currently unable to change video modes or provide any form of acceleration,
so you are stuck in a 640x400x8 mode, but at least people scared of serial
consoles will get a chance to use their Fuloongs now.

Tested by otto@ (early developments) and jasper@ (final version)

Basic apm(4), providing battery/power status and events. apm(4) is the
generic part, ykbec(4) provides the device specific parts. Other
battery/power status drivers can easily hook to adb(4). With help
from miod@; ok matthieu@ miod@ jasper@

Subdevice interrupt dispatcher for voyager(4) and ohci@voyager device, only
allowed to match on old gdium artwork, as newer artwork have nothing
connected to the usb pins, and this causes the empty bus probe to stall the
boot a few seconds.

Minimal support for the ST7 chip found on Gdium Liberty, brings us battery
information and a few other things not yet wired.

ykbec(4), a driver to read fan, temperature and battery status using
the kb3310b embedded controller chip on the yeeloong. With help & ok miod@

Add a driver for the M41T8x time-of-day clock chips, such as the M41T83
found on the Gdium Liberty. These machines finally no longer complain about
a missing todclock.

Add a master driver for the VoyagerGX SM502 chip found on the Gdium, which is
not only a framebuffer. Allow smfb to attach either at pci or at voyager.

Add gpio@voyager and gdiumiic@gpio, a derivative of the MI gpioiic driver.
This allows us to get lmtemp@iic on the Lemote; the next step being to
write a driver for the i2c todclock chip found on the same bus.

Blind support for the EMTEC Gdium Liberty netbook. Per-platform configuration
is moved to specific files, and a pointer to the key configuration structure
is now kept in struct sys_config.
bonito(4) interrupt handling is split, to allow PCI+Legacy interrupt systems
(Lemote Yeelong) and PCI-only Legacy-free systems (Gdium) to coexist
peacefully.

branches: 1.1.1;
Initial revision