J-core J2 cpu and SoC peripherals support

The following patchset adds support for the J-core J2, an open-source VHDL reimplementation of the SH-2 ISA, and drivers for the associated SoC devices (interrupt controller, clocksource, and SPI).

As arch/sh co-maintainer my intent is to include as much as possible in my pull request for the linux-sh tree. If there are parts outside of arch/sh that can be included in this, please let me know. I'm not clear yet on what the right path to upstream is for the clocksource and irq drivers that are currently only useful/interesting for one arch, or for the DT binding patches. Even if some drivers are delayed going upstream, I would really like to get DT bindings acked and ideally merged, because we want to go ahead with moving the DTB into J2 boot rom where it belongs, and that should only happen with stable bindings.

Rich Felker (12):
of: add vendor prefix for J-Core
of: add J-Core cpu bindings
of: add J-Core interrupt controller bindings
of: add J-Core timer bindings
of: add J-Core SPI master bindings
sh: add support for J-Core J2 processor
sh: add AT_HWCAP flag for J-Core cas.l instruction
irqchip: add J-Core AIC driver
clocksource: add J-Core timer/clocksource driver
spi: add driver for J-Core SPI controller
sh: add defconfig for J-Core J2
sh: add device tree source for J2 FPGA on Mimas v2 board

 .../bindings/interrupt-controller/jcore,aic.txt    |  29 +++
 Documentation/devicetree/bindings/jcore/cpus.txt   |  92 +++++++
 .../devicetree/bindings/spi/jcore,spi.txt          |  23 ++
 .../devicetree/bindings/timer/jcore,pit.txt        |  28 ++
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 arch/sh/Kconfig                                    |   8 +
 arch/sh/Makefile                                   |   1 +
 arch/sh/boot/dts/j2_mimas_v2.dts                   |  87 +++++++
 arch/sh/configs/j2_defconfig                       |  38 +++
 arch/sh/include/asm/processor.h                    |   2 +-
 arch/sh/include/uapi/asm/cpu-features.h            |   1 +
 arch/sh/kernel/cpu/init.c                          |   2 +-
 arch/sh/kernel/cpu/proc.c                          |   1 +
 arch/sh/kernel/cpu/sh2/entry.S                     |   5 +
 arch/sh/kernel/cpu/sh2/probe.c                     |  36 ++-
 arch/sh/mm/Makefile                                |   3 +-
 arch/sh/mm/cache-j2.c                              |  58 +++++
 arch/sh/mm/cache.c                                 |   6 +-
 drivers/clocksource/Kconfig                        |   8 +
 drivers/clocksource/Makefile                       |   1 +
 drivers/clocksource/jcore-pit.c                    | 282 +++++++++++++++++++++
 drivers/irqchip/Kconfig                            |   6 +
 drivers/irqchip/Makefile                           |   1 +
 drivers/irqchip/irq-jcore-aic.c                    |  95 +++++++
 drivers/spi/Kconfig                                |   4 +
 drivers/spi/Makefile                               |   1 +
 drivers/spi/spi-jcore.c                            | 209 +++++++++++++++
 27 files changed, 1023 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/jcore,aic.txt
 create mode 100644 Documentation/devicetree/bindings/jcore/cpus.txt
 create mode 100644 Documentation/devicetree/bindings/spi/jcore,spi.txt
 create mode 100644 Documentation/devicetree/bindings/timer/jcore,pit.txt
 create mode 100755 arch/sh/boot/dts/j2_mimas_v2.dts
 create mode 100644 arch/sh/configs/j2_defconfig
 create mode 100644 arch/sh/mm/cache-j2.c
 create mode 100644 drivers/clocksource/jcore-pit.c
 create mode 100644 drivers/irqchip/irq-jcore-aic.c
 create mode 100644 drivers/spi/spi-jcore.c

2.8.1

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