RE: [PATCH v4 0/5] ARM: EXYNOS: Add secure firmware support

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Tomasz Figa wrote:
> 
> Some Exynos-based boards are running with secure firmware running in
> TrustZone secure world, which changes the way some things have to be
> initialized.
> 
> This series adds support for specifying firmware operations, implements
> some firmware operations for Exynos secure firmware and adds a method of
> enabling secure firmware operations on Exynos-based boards through board
> file and device tree.
> 
> Depends on:
>   - ARM: EXYNOS: Add support for secondary CPU bring-up on Exynos4412
> 
> Changes since v3
> ( http://thread.gmane.org/gmane.linux.kernel.samsung-soc/13442 )
>   - Replaced cpu_boot_reg call with cpu_set_boot_addr
>   - Added interface documentation
>   - Separated from Exynos4x12 secondary CPU bring-up patch
> 
> Changes since v2
> ( http://thread.gmane.org/gmane.linux.kernel.samsung-soc/12848 )
>   - Made Exynos firmware binding require address
>   - Minor style fixes
> 
> Changes since v1
> ( http://thread.gmane.org/gmane.linux.kernel.samsung-
> soc/12583/focus=12820 )
>   - Changed return types of all operations to int
>   - Defined all operations to return 0 on success, -ENOSYS when not
>     implemented or appropriate error code on error
> 
> Tomasz Figa (5):
>   ARM: Add interface for registering and calling firmware-specific
>     operations
>   ARM: EXYNOS: Add support for secure monitor calls
>   ARM: EXYNOS: Add support for Exynos secure firmware
>   ARM: EXYNOS: Add IO mapping for non-secure SYSRAM.
>   ARM: EXYNOS: Add secure firmware support to secondary CPU bring-up
> 
>  Documentation/arm/firmware.txt                     | 88 ++++++++++++++++++++++
>  .../devicetree/bindings/arm/samsung-boards.txt     | 10 +++
>  arch/arm/common/Makefile                           |  2 +
>  arch/arm/common/firmware.c                         | 18 +++++
>  arch/arm/include/asm/firmware.h                    | 66 ++++++++++++++++
>  arch/arm/mach-exynos/Makefile                      |  6 ++
>  arch/arm/mach-exynos/common.c                      | 35 +++++++++
>  arch/arm/mach-exynos/common.h                      |  2 +
>  arch/arm/mach-exynos/exynos-smc.S                  | 22 ++++++
>  arch/arm/mach-exynos/firmware.c                    | 70 +++++++++++++++++
>  arch/arm/mach-exynos/include/mach/map.h            |  3 +
>  arch/arm/mach-exynos/mach-exynos4-dt.c             |  1 +
>  arch/arm/mach-exynos/platsmp.c                     | 32 ++++++--
>  arch/arm/mach-exynos/smc.h                         | 31 ++++++++
>  arch/arm/plat-samsung/include/plat/map-s5p.h       |  1 +
>  15 files changed, 382 insertions(+), 5 deletions(-)
>  create mode 100644 Documentation/arm/firmware.txt
>  create mode 100644 arch/arm/common/firmware.c
>  create mode 100644 arch/arm/include/asm/firmware.h
>  create mode 100644 arch/arm/mach-exynos/exynos-smc.S
>  create mode 100644 arch/arm/mach-exynos/firmware.c
>  create mode 100644 arch/arm/mach-exynos/smc.h
> 
> --
> 1.8.0

Russell, I think, Tomasz addressed comments from you.

If you're ok on this, please ack so that I can pick this up in my tree for v3.8...

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@xxxxxxxxxxx>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.


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