[PATCH v3 0/12] Add basic support for arm64

[Raphael Poggi]

Change since v2:
	PATCH 1/14	add PHYS_ADDR_T_64BIT config

	PATCH 3/14	remove modules.c and clean atags functions in armlinux.c,
			and fix also parameters passed to linux kernel.

	PATCH 12/14	move lowlevel file from mach-qemu/ to boards/ (like others boards)
			split dram and flash init
			increase dram/flash size

	PATCH 13/14	new patch, in case of armv8, swab need to be done on 32-bit wide register
			otherwise swapping the value: "0xAAAABBBB" will become "0xAAAABBBB00000000"
			and see as a null value in uint32_t variable.

	PATCH 14/14	new patch, add define to handle arm64 uimage format


Change since v1:
	PATCH 2/12:	remove hunk which belongs to patch adding mach-qemu

	PATCH 3/12:	remove unused files

	PATCH 4/12:	create lowlevel64

	PATCH 11/12:	create pgtables64 (nothing in common with the arm32 version)

	PATCH 12/12:	rename "mach-virt" => "mach-qemu"
			rename board "qemu_virt64"
			remove board env files


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                           |  28 ++
 arch/arm/Makefile                          |  30 +-
 arch/arm/boards/Makefile                   |   1 +
 arch/arm/boards/qemu-virt64/Kconfig        |   8 +
 arch/arm/boards/qemu-virt64/Makefile       |   2 +
 arch/arm/boards/qemu-virt64/env/config     |   8 +
 arch/arm/boards/qemu-virt64/init.c         |  72 ++++
 arch/arm/boards/qemu-virt64/lowlevel.c     |  19 +
 arch/arm/configs/qemu_virt64_defconfig     |  52 +++
 arch/arm/cpu/Kconfig                       |  33 +-
 arch/arm/cpu/Makefile                      |  26 +-
 arch/arm/cpu/cache-armv8.S                 | 168 +++++++++
 arch/arm/cpu/cache.c                       |  19 +
 arch/arm/cpu/cpu.c                         |   7 +
 arch/arm/cpu/cpuinfo.c                     |  58 ++-
 arch/arm/cpu/exceptions_64.S               | 127 +++++++
 arch/arm/cpu/interrupts.c                  |  47 +++
 arch/arm/cpu/lowlevel_64.S                 |  40 ++
 arch/arm/cpu/mmu.h                         |  54 +++
 arch/arm/cpu/mmu_64.c                      | 333 +++++++++++++++++
 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                 |  14 +-
 arch/arm/include/asm/pgtable64.h           | 140 +++++++
 arch/arm/include/asm/swab.h                |   4 +
 arch/arm/include/asm/system.h              |  46 ++-
 arch/arm/include/asm/system_info.h         |  38 ++
 arch/arm/lib64/Makefile                    |  10 +
 arch/arm/lib64/armlinux.c                  | 104 ++++++
 arch/arm/lib64/asm-offsets.c               |  16 +
 arch/arm/lib64/barebox.lds.S               | 125 +++++++
 arch/arm/lib64/bootm.c                     | 572 +++++++++++++++++++++++++++++
 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/mach-qemu/Kconfig                 |  18 +
 arch/arm/mach-qemu/Makefile                |   1 +
 arch/arm/mach-qemu/include/mach/debug_ll.h |  24 ++
 arch/arm/mach-qemu/include/mach/devices.h  |  13 +
 arch/arm/mach-qemu/virt_devices.c          |  30 ++
 common/image.c                             |   1 +
 include/image.h                            |   5 +
 44 files changed, 2801 insertions(+), 16 deletions(-)