- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r260281, r260282, r260283, r260285

Implement OFW_BUS_MAP_INTR() in terms of the FDT PIC table

Reimplement fdt_intr_to_rl() in terms of OFW_BUS_MAP_INTR() and
OFW_BUS_CONFIG_INTR().

Use bus_space_map() rather than pmap_mapdev() in nexus_activate_resource(),
when running on FDT systems. Unmap memory in nexus_deactivate_resource().

Remove fdt_pic_table code from MIPS, PowerPC, and x86, as it is no longer
used by anything.

MFC r256911, r256936

MFP4: 223121 (PIC portion), 225861, 227822, 229692 (PIC only), 229693,
230523, 1123614

Implement a driver for Robert Norton's PIC as an FDT interrupt
controller. Devices whose interrupt-parent property points to a beripic

device will have their interrupt allocation, activation, and setup
operations routed through the IC rather than down the traditional bus
hierarchy.

This driver largely abstracts the underlying CPU away allowing the
PIC to be implemented on CPU's other than BERI. Due to insufficient
abstractions a small amount of MIPS specific code is currently required
in fdt_mips.c and to implement counters.

Sponsored by: DARPA/AFRL
Approved by: re (gjb)

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Merge Perforce changeset 219933 and portions of 219962 (omits changes to
unmerged BERI DTS files) to head:

Use the OFW compatible string "mips,mips4k" rather than
"mips4k,cp0" for interrupt control using MIPS4k CP0.

Suggested by: thompsa

Implement a MIPS FDT PIC decode routine to use when no PIC has been
configured, which assumes a cascade back to the nexus bus (e.g.,
the on-board CP0 interrupt management parts on the MIPS). If the
soc bus in a MIPS DTS file is declared as "mips4k,cp0"-compatible,
then this will be enabled. This is sufficient to allow IRQs to be
configured on BERI.

Sponsored by: DARPA, AFRL

FDT support for MIPS.

Add architecture specific files needed to compile MIPS with
flattened device tree support.