[PATCH 0/12] Add basic support for arm64

[Raphael Poggi]

Hello,

This patch series introduces a basic support for arm64.

The arm64 code is merged in the current arch/arm directory.
I try to be iterative in the merge process, and find correct solutions
to handle both architecture at some places.

I test the patch series by compiling arm64 virt machine and arm32 vexpress-a9 and test it
in qemu, everything seems to work.

Thanks,
Raphaël

 arch/arm/Kconfig                           |  32 ++
 arch/arm/Makefile                          |  30 +-
 arch/arm/boards/Makefile                   |   1 +
 arch/arm/boards/virt/Kconfig               |   8 +
 arch/arm/boards/virt/Makefile              |   1 +
 arch/arm/boards/virt/env/bin/_update       |  36 ++
 arch/arm/boards/virt/env/bin/boot          |  38 ++
 arch/arm/boards/virt/env/bin/init          |  20 +
 arch/arm/boards/virt/env/bin/update_kernel |   8 +
 arch/arm/boards/virt/env/bin/update_root   |   8 +
 arch/arm/boards/virt/env/config            |  38 ++
 arch/arm/boards/virt/env/init/mtdparts-nor |  11 +
 arch/arm/boards/virt/init.c                |  67 ++++
 arch/arm/configs/virt_defconfig            |  55 +++
 arch/arm/cpu/Kconfig                       |  29 +-
 arch/arm/cpu/Makefile                      |  22 +-
 arch/arm/cpu/cache-armv8.S                 | 168 +++++++++
 arch/arm/cpu/cache.c                       |  19 +
 arch/arm/cpu/cpu.c                         |   5 +
 arch/arm/cpu/cpuinfo.c                     |  58 ++-
 arch/arm/cpu/exceptions_64.S               | 127 +++++++
 arch/arm/cpu/interrupts.c                  |  47 +++
 arch/arm/cpu/lowlevel.S                    |  38 ++
 arch/arm/cpu/mmu.h                         | 160 ++++++++
 arch/arm/cpu/mmu_64.c                      | 335 +++++++++++++++++
 arch/arm/cpu/start.c                       |   2 +
 arch/arm/include/asm/bitops.h              |   5 +
 arch/arm/include/asm/cache.h               |   9 +
 arch/arm/include/asm/mmu.h                 |   4 +-
 arch/arm/include/asm/pgtable.h             |   8 +
 arch/arm/include/asm/system.h              |  46 ++-
 arch/arm/include/asm/system_info.h         |  38 ++
 arch/arm/lib64/Makefile                    |  16 +
 arch/arm/lib64/armlinux.c                  | 275 ++++++++++++++
 arch/arm/lib64/asm-offsets.c               |  16 +
 arch/arm/lib64/barebox.lds                 | 125 +++++++
 arch/arm/lib64/barebox.lds.S               | 125 +++++++
 arch/arm/lib64/bootm.c                     | 572 +++++++++++++++++++++++++++++
 arch/arm/lib64/bootu.c                     |  44 +++
 arch/arm/lib64/bootz.c                     | 136 +++++++
 arch/arm/lib64/copy_template.S             | 192 ++++++++++
 arch/arm/lib64/div0.c                      |  27 ++
 arch/arm/lib64/memcpy.S                    |  74 ++++
 arch/arm/lib64/memset.S                    | 215 +++++++++++
 arch/arm/lib64/module.c                    |  98 +++++
 arch/arm/lib64/pbl.lds.S                   |  96 +++++
 arch/arm/lib64/runtime-offset.S            |  52 +++
 arch/arm/lib64/unwind.c                    | 349 ++++++++++++++++++
 arch/arm/mach-virt/Kconfig                 |  15 +
 arch/arm/mach-virt/Makefile                |   3 +
 arch/arm/mach-virt/devices.c               |  30 ++
 arch/arm/mach-virt/include/mach/debug_ll.h |  24 ++
 arch/arm/mach-virt/include/mach/devices.h  |  13 +
 arch/arm/mach-virt/lowlevel.c              |  19 +
 arch/arm/mach-virt/reset.c                 |  24 ++
 55 files changed, 3999 insertions(+), 14 deletions(-)