Re: [PATCH v2 00/21] FDT clean-ups and libfdt support

[Michal Simek]

On 04/23/2014 03:18 AM, Rob Herring wrote:
> From: Rob Herring <robh@xxxxxxxxxx>
> 
> This is a series of clean-ups of architecture FDT code and converts the
> core FDT code over to using libfdt functions. This is in preparation
> to add FDT based address translation parsing functions for early
> console support. This series removes direct access to FDT data from all
> arches except powerpc.
> 
> The current MIPS lantiq and xlp DT code is buggy as built-in DTBs need
> to be copied out of init section. Patches 2 and 3 should be applied to
> 3.15.
> 
> Changes in v2 are relatively minor. There was a bug in the unflattening
> code where walking up the tree was not being handled correctly (thanks
> to Michal Simek). I re-worked things a bit to avoid globally adding
> libfdt include paths.
> 
> A branch is available here[1], and I plan to put into linux-next in a few
> days. Please test! I've compiled on arm, arm64, mips, microblaze, xtensa,
> and powerpc and booted on arm and arm64.
> 
> Rob
> 
> [1] git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git libfdt
> 
> Rob Herring (21):
>   mips: octeon: convert to use unflatten_and_copy_device_tree
>   mips: lantiq: copy built-in DTB out of init section
>   mips: xlp: copy built-in DTB out of init section
>   mips: ralink: convert to use unflatten_and_copy_device_tree
>   ARM: dt: use default early_init_dt_alloc_memory_arch
>   c6x: convert fdt pointers to opaque pointers
>   mips: convert fdt pointers to opaque pointers
>   of/fdt: consolidate built-in dtb section variables
>   of/fdt: remove some unneeded includes
>   of/fdt: remove unused of_scan_flat_dt_by_path
>   of/fdt: update of_get_flat_dt_prop in prep for libfdt
>   of/fdt: Convert FDT functions to use libfdt
>   of/fdt: use libfdt accessors for header data
>   of/fdt: create common debugfs
>   of/fdt: move memreserve and dtb memory reservations into core
>   of/fdt: fix phys_addr_t related print size warnings
>   of/fdt: introduce of_get_flat_dt_size
>   powerpc: use libfdt accessors for header data
>   x86: use FDT accessors for FDT blob header data
>   of/fdt: convert initial_boot_params to opaque pointer
>   of: push struct boot_param_header and defines into powerpc
> 
>  arch/arc/include/asm/sections.h             |   1 -
>  arch/arc/kernel/devtree.c                   |   2 +-
>  arch/arm/include/asm/prom.h                 |   2 -
>  arch/arm/kernel/devtree.c                   |  34 +--
>  arch/arm/mach-exynos/exynos.c               |   2 +-
>  arch/arm/mach-vexpress/platsmp.c            |   2 +-
>  arch/arm/mm/init.c                          |   1 -
>  arch/arm/plat-samsung/s5p-dev-mfc.c         |   4 +-
>  arch/arm64/mm/init.c                        |  21 --
>  arch/c6x/kernel/setup.c                     |   4 +-
>  arch/metag/kernel/setup.c                   |   4 -
>  arch/microblaze/kernel/prom.c               |  39 +--
>  arch/mips/cavium-octeon/setup.c             |  20 +-
>  arch/mips/include/asm/mips-boards/generic.h |   4 -
>  arch/mips/include/asm/prom.h                |   6 +-
>  arch/mips/kernel/prom.c                     |   2 +-
>  arch/mips/lantiq/prom.c                     |  15 +-
>  arch/mips/lantiq/prom.h                     |   2 -
>  arch/mips/mti-sead3/sead3-setup.c           |   8 +-
>  arch/mips/netlogic/xlp/dt.c                 |  19 +-
>  arch/mips/ralink/of.c                       |  29 +-
>  arch/openrisc/kernel/vmlinux.h              |   2 -
>  arch/powerpc/include/asm/prom.h             |  39 +++
>  arch/powerpc/kernel/Makefile                |   1 +
>  arch/powerpc/kernel/epapr_paravirt.c        |   2 +-
>  arch/powerpc/kernel/fadump.c                |   4 +-
>  arch/powerpc/kernel/prom.c                  |  78 ++----
>  arch/powerpc/kernel/rtas.c                  |   2 +-
>  arch/powerpc/mm/hash_utils_64.c             |  22 +-
>  arch/powerpc/platforms/52xx/efika.c         |   4 +-
>  arch/powerpc/platforms/chrp/setup.c         |   4 +-
>  arch/powerpc/platforms/powernv/opal.c       |  12 +-
>  arch/powerpc/platforms/pseries/setup.c      |   4 +-
>  arch/x86/kernel/devicetree.c                |  12 +-
>  arch/xtensa/kernel/setup.c                  |   3 +-
>  drivers/of/Kconfig                          |   1 +
>  drivers/of/Makefile                         |   2 +
>  drivers/of/fdt.c                            | 398 ++++++++++------------------
>  drivers/of/of_reserved_mem.c                |   4 +-
>  include/linux/of_fdt.h                      |  63 +----
>  40 files changed, 280 insertions(+), 598 deletions(-)
> 

For Microblaze and generic changes:
Tested-by: Michal Simek <monstr@xxxxxxxxx>

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Microblaze cpu - http://www.monstr.eu/fdt/
Maintainer of Linux kernel - Xilinx Zynq ARM architecture
Microblaze U-BOOT custodian and responsible for u-boot arm zynq platform

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