linux-toradex.git/arch/arc/kernel/vmlinux.lds.S, branch v3.10.2

ARC: [Review] Multi-platform image #4: Isolate platform headers

2013-02-15T17:46:14+00:00

-Top level ARC makefile removes -I for platform headers
-asm/irq.h no longer includes plat/irq.h

-platform makefile adds -I for it's specfic platform headers
-platform code to directly include it's plat/irq.h

-Linker script needed plat/memmap.h for CCM info, already in .config

Signed-off-by: Vineet Gupta 
Cc: Arnd Bergmann 
Acked-by: Arnd Bergmann

ARC: [Review] Multi-platform image #2: Board callback Infrastructure

2013-02-15T17:46:13+00:00

The orig platform code orgnaization was singleton design pattern - only
one platform (and board thereof) would build at a time.

Thus any platform/board specific code (e.g. irq init, early init ...)
expected by ARC common code was exported as well defined set of APIs,
with only ONE instance building ever.

Now with multiple-platform build requirement, that design of code no
longer holds - multiple board specific calls need to build at the same
time - so ARC common code can't use the API approach, it needs a
callback based design where each board registers it's specific set of
functions, and at runtime, depending on board detection, the callbacks
are used from the registry.

This commit adds all the infrastructure, where board specific callbacks
are specified as a "maThine description".

All the hooks are placed in right spots, no board callbacks registered
yet (with MACHINE_STARt/END constructs) so the hooks will not run.

Next commit will actually convert the platform to this infrastructure.

Signed-off-by: Vineet Gupta 
Cc: Arnd Bergmann 
Acked-by: Arnd Bergmann

ARC: Support for single cycle Close Coupled Mem (CCM)

2013-02-15T17:46:10+00:00

* Includes mapping of CCMs in address space
* Annotations to move arbitrary code/data into CCM
* Moving some of the critical code/data into CCM
* Runtime detection/reporting

Signed-off-by: Vineet Gupta

ARC: DWARF2 .debug_frame based stack unwinder

2013-02-15T17:46:03+00:00

-Originally written by Rajeshwar Ranga
-Derived off of generic unwinder in 2.6.19 and adapted to ARC

Signed-off-by: Vineet Gupta 
Cc: Rajeshwar Ranga

ARC: Build system: Makefiles, Kconfig, Linker script

2013-02-11T14:30:25+00:00

Arnd in his review pointed out that arch Kconfig organisation has several
deficiencies:

* Build time entries for things which can be runtime extracted from DT
  (e.g. SDRAM size, core clk frequency..)
* Not multi-platform-image-build friendly (choice .. endchoice constructs)
* cpu variants support (750/770) is exclusive.

The first 2 have been fixed in subsequent patches.
Due to the nature of the 750 and 770, it is not possible to build for
both together, w/o special runtime glue code which would hurt
performance.

Signed-off-by: Vineet Gupta 
Cc: Arnd Bergmann 
Cc: Sam Ravnborg 
Acked-by: Sam Ravnborg