Commit Graph

8 Commits

Author SHA1 Message Date
b85d459479 xtensa: xtfpga: fix integer overflow in TASK_SIZE
This fixes the following warning when default memory region crosses
0x80000000:

  arch/xtensa/include/asm/processor.h:40:47: warning:
    integer overflow in expression [-Woverflow]
    #define TASK_SIZE (PLATFORM_DEFAULT_MEM_START + PLATFORM_DEFAULT_MEM_SIZE)
                                               ^
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-11-02 18:02:55 +03:00
2ba9268dd6 Merge tag 'xtensa-for-next-20150413' of git://github.com/jcmvbkbc/linux-xtensa into for_next
Xtensa improvements for 4.1:

- fix locking issues in ISS network driver;
- document PIC and MX interrupt distributor device tree bindings;
- add CY7C67300 USB controller support to XTFPGA.

Signed-off-by: Chris Zankel <chris@zankel.net>
2015-04-14 04:47:53 +00:00
e0bf6c5ca2 xtensa: xtfpga: add CY7C67300 USB controller support
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-04-13 09:34:37 +03:00
4949009eb8 xtensa: xtfpga: fix hardware lockup caused by LCD driver
LCD driver is always built for the XTFPGA platform, but its base address
is not configurable, and is wrong for ML605/KC705. Its initialization
locks up KC705 board hardware.

Make the whole driver optional, and its base address and bus width
configurable. Implement 4-bit bus access method.

Cc: stable@vger.kernel.org
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-02-27 07:55:29 +03:00
3932b9ca55 xtensa: make PLATFORM_DEFAULT_MEM parameters configurable
This allows using xtfpga platform with both MMU and noMMU cores.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21 13:28:59 +04:00
f615136c06 xtensa: add SMP support
This is largely based on SMP code from the xtensa-2.6.29-smp tree by
Piet Delaney, Marc Gauthier, Joe Taylor, Christian Zankel (and possibly
other Tensilica folks).

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
2014-01-14 10:19:58 -08:00
c4ee0af3fa xtensa: remove NO_IRQ definitions
These definitions (-1) were correct when used as a hardware IRQ number,
but are incorrect as a mapped IRQ number.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
2014-01-14 10:19:52 -08:00
0d456bad36 xtensa: add support for the XTFPGA boards
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 <chris@zankel.net>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-18 21:10:24 -08:00