[PATCH 00/11] powerpc: Add support for Microwatt soft-core

[Paul Mackerras]

This series of patches adds support for the Microwatt soft-core.
Microwatt is an open-source 64-bit Power ISA processor written in VHDL
which targets medium-sized FPGAs such as the Xilinx Artix-7 or the
Lattice ECP5.  Microwatt currently implements the scalar fixed plus
floating-point subset of Power ISA v3.0B plus the radix MMU, but not
logical partitioning (i.e. it does not have hypervisor mode, the
partition table or nested radix translation).

Paul.

 arch/powerpc/Kconfig                      |   2 +-
 arch/powerpc/boot/Makefile                |   4 +
 arch/powerpc/boot/devtree.c               |  59 ++++---
 arch/powerpc/boot/dts/microwatt.dts       | 145 +++++++++++++++++
 arch/powerpc/boot/microwatt.c             |  19 +++
 arch/powerpc/boot/ns16550.c               |   9 +-
 arch/powerpc/boot/wrapper                 |   5 +
 arch/powerpc/configs/microwatt_defconfig  |  98 ++++++++++++
 arch/powerpc/include/asm/archrandom.h     |  12 +-
 arch/powerpc/include/asm/reg.h            |   1 +
 arch/powerpc/kernel/udbg_16550.c          |  39 +++++
 arch/powerpc/mm/book3s64/radix_pgtable.c  |  13 +-
 arch/powerpc/platforms/Kconfig            |   1 +
 arch/powerpc/platforms/Makefile           |   1 +
 arch/powerpc/platforms/microwatt/Kconfig  |  13 ++
 arch/powerpc/platforms/microwatt/Makefile |   1 +
 arch/powerpc/platforms/microwatt/rng.c    |  48 ++++++
 arch/powerpc/platforms/microwatt/setup.c  |  41 +++++
 arch/powerpc/sysdev/xics/Kconfig          |   3 +
 arch/powerpc/sysdev/xics/Makefile         |   1 +
 arch/powerpc/sysdev/xics/ics-native.c     | 257 ++++++++++++++++++++++++++++++
 arch/powerpc/sysdev/xics/xics-common.c    |   2 +
 22 files changed, 741 insertions(+), 33 deletions(-)