linux.git/arch/metag/kernel/setup.c, branch v3.14.41

Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2013-11-12T07:52:17+00:00

Pull devicetree updates from Rob Herring:
"DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.

- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for
deferred probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates"

* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
powerpc: add missing explicit OF includes for ppc
dt/irq: add empty of_irq_count for !OF_IRQ
dt: disable self-tests for !OF_IRQ
of: irq: Fix interrupt-map entry matching
MIPS: Netlogic: replace early_init_devtree() call
of: Add Panasonic Corporation vendor prefix
of: Add Chunghwa Picture Tubes Ltd. vendor prefix
of: Add AU Optronics Corporation vendor prefix
of/irq: Fix potential buffer overflow
of/irq: Fix bug in interrupt parsing refactor.
of: set dma_mask to point to coherent_dma_mask
of: add vendor prefix for PHYTEC Messtechnik GmbH
DT: sort vendor-prefixes.txt
of: Add vendor prefix for Cadence
of: Add empty for_each_available_child_of_node() macro definition
arm/versatile: Fix versatile irq specifications.
of/irq: create interrupts-extended property
microblaze/pci: Drop PowerPC-ism from irq parsing
of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
of/irq: Use irq_of_parse_and_map()
...

metag: handle low level kicks directly

2013-11-06T10:40:02+00:00

Kick interrupts trigger the LWK (low level kick) signal, usually handled
by the __TBIDoStdLWK() function which is the only handler inherited from
the bootloader. The LWK signal is converted either to a SWK (plain
software kick) or a SWS (software kick with an attached message).

Linux has kick_handler() to handle SWK and call registered kick handlers
(IPIs and inter-thread comms), but SWS is as far as I'm aware unused
with Linux.

Therefore remove that abstraction and have Linux handle LWK directly.
This will reduce kick latency slightly, and reduce our dependence on the
bootloader, which makes it easier to directly boot a kernel in QEMU
(particularly for SMP).

Signed-off-by: James Hogan

metag: move setup_machine_fdt declaration from prom.h

2013-10-10T01:04:03+00:00

Move setup_machine_fdt out of prom.h and into asm/setup.h in preparation
to remove prom.h.

Signed-off-by: Rob Herring 
Acked-by: Grant Likely 
Cc: James Hogan 
Cc: linux-metag@vger.kernel.org

metag: use common of_flat_dt_match_machine

2013-10-10T01:03:57+00:00

Convert metag to use the common of_flat_dt_get_machine_name function.

Signed-off-by: Rob Herring 
[james.hogan: fix missing arch_get_next_mach and const mismatch]
Reported-by: Guenter Roeck 
Signed-off-by: James Hogan

metag: use unflatten_and_copy_device_tree

2013-10-09T16:38:06+00:00

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring 
Cc: James Hogan

metag/setup: Restrict scope for the capabilities variable

2013-06-13T11:55:29+00:00

Signed-off-by: Markos Chandras 
Signed-off-by: James Hogan

metag: of_platform_populate from arch generic code

2013-06-13T11:14:06+00:00

If no init_machine callback is provided, call of_platform_populate()
instead. This allows a board/SoC that only needs to call
of_platform_populate to omit the callback altogether.

Signed-off-by: James Hogan 
Cc: Grant Likely 
Cc: Rob Herring 
Cc: Arnd Bergmann 
Cc: devicetree-discuss@lists.ozlabs.org

metag: export _metag_da_present and cpu_2_hwthread_id

2013-03-27T14:37:52+00:00

Export the symbols _metag_da_present and cpu_2_hwthread_id to modules
(GPL only) to allow the imgdafs file system to be built as a module.

Signed-off-by: James Hogan

metag: copy devicetree to non-init memory

2013-03-02T20:11:17+00:00

Make a copy of the device tree blob in non-init memory. It is required
when using built-in device tree files that the platform code copies the
blob to non-init memory prior to calling unflatten_device_tree(),
otherwise the strings that the device tree refer to will get poisoned
and potentially reused, breaking later reading of the device tree
post-init (such as compatible matching in modules, debugfs, and the
procfs interface).

Signed-off-by: James Hogan 
Reviewed-by: Vineet Gupta

metag: move setup.c exports out of metag_ksyms.c

2013-03-02T20:11:15+00:00

It's less error prone to have function symbols exported immediately
after the function rather than in metag_ksyms.c. Move each EXPORT_SYMBOL
in metag_ksyms.c for symbols defined in setup.c into setup.c

Signed-off-by: James Hogan