linux-toradex.git/arch/xtensa/Makefile, branch v3.10.41

xtensa: add support for oprofile

2013-02-24T03:22:54+00:00

Support call graph profiling.
Keep upper two bits of PC unchanged through backtrace rather than take
them from sp (a1). The stack pointer is usually in the same GB (same
upper 2 bits) as PC, but technically doesn't always have to be (and
might not in the future, when taking full advantage of MMU v3).

Signed-off-by: Dan Nicolaescu 
Signed-off-by: Pete Delaney 
Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: Add config files for Diamond 233L - Rev C processor variant

2013-02-24T03:12:52+00:00

The Diamond 233L processor is a pre-configured Xtensa processor tailored
for Linux application.

Signed-off-by: Pete Delaney 
Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: use new common dtc rule

2013-02-24T03:12:52+00:00

The current rules have the .dtb files build in a different directory
from the .dts files. This patch changes xtensa to use the generic dtb
rule which builds .dtb files in the same directory as the source .dts.

This requires moving parts of arch/xtensa/boot/Makefile into newly
created arch/xtensa/boot/dts/Makefile, and updating arch/xtensa/Makefile
to call the new Makefile.

Signed-off-by: Stephen Warren 
Signed-off-by: Chris Zankel

xtensa: don't try to build DTB when OF is disabled

2012-12-19T05:10:26+00:00

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: clean up files to make them code-style compliant

2012-12-19T05:10:25+00:00

Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel

xtensa: provide endianness macro for sparse

2012-12-19T05:10:25+00:00

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: add support for the XTFPGA boards

2012-12-19T05:10:24+00:00

The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with
an Xtensa processor and an OpenCores Ethernet device.

Signed-off-by: Chris Zankel 
Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: add device trees support

2012-12-19T05:10:23+00:00

Device trees allow specification of hardware topology and device
parameters at runtime instead of hard-coding them in platform setup
code. This allows running single binary kernel on a range of compatible
boards.

New boot parameters tag BP_TAG_FDT is allocated and a pointer to flat
device tree is passed in it.

Note that current interrupt mapping scheme uses single cell for
interrupt identification. That means that IRQ numbers used in DTS must
be CPU internal IRQ numbers, not external. It is possible to extend
interrupt identification to two cells, and use second cell to tell
external IRQ numbers form internal. That would allow to use single DTS
on multiple boards with different mapping of external IRQ numbers.

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: add config option to disable linker relaxation

2012-12-19T05:10:20+00:00

The default linker behavior is to optimize identical literal values and
remove unnecessary overhead from assembler-generated "longcall" sequences
to reduce code size. Provide an option to disable this behavior to improve
compile time.

Signed-off-by: Chris Zankel

xtensa: Setup CROSS_COMPILE at the top

2012-10-04T19:16:20+00:00

CROSS_COMPILE must be setup before using e.g. cc-option (and a few other
as-*, cc-*, ld-* macros), else they will check against the wrong compiler
when cross-compiling, and may invoke the cross compiler with wrong or
suboptimal compiler options.

Signed-off-by: Geert Uytterhoeven 
Signed-off-by: Chris Zankel