Commit Graph

5 Commits

Author SHA1 Message Date
Andrew Boie 738dec483e nios2: add static interrupt handling code
Supports Internal Interrupt Controller only for now; EIC
supoort tracked in ZEP-258.

Change-Id: I2d9c5180e61c06b377fce4bda8a59042b68d58f2
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-22 16:42:21 +00:00
Andrew Boie e2ff2fdd91 nios2: add base exception handling code
Change-Id: I56b0ec1a3576a77ca7bd6f2c0217de8053406927
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-22 16:42:20 +00:00
Andrew Boie 2d5645e57a nios2: add minimal crt0.S
At the moment this just jumps into prep_c, with comments left
on other things that need to be done. Having this here ensures that
the early boot code isn't discarded by gc-sections.

vector_table.c removed, it isn't the right approach for this CPU.
Proper method for initializing reset and exception vectors still
being investigated.

Change-Id: Id7965c671f1a55c42ecfb65119497405a646bec4
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-09 18:09:26 +00:00
Andrew Boie f6cf65d57c nios2: add prep_c to zero BSS and copy XIP data
Copied verbatim from arch/arc/core

Change-Id: I00c920064f75455010806951ad052289d0290654
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-03 23:18:46 +00:00
Andrew Boie 9433895954 nios2: basic build, non-functional
Basic build framework for Nios2. Everything is stubbed out,
we just want to have a build going so that we can start to
parallelize implementation tasks.

This patch is not intended to be functional, but should be
able to produce a binary for all the nanokernel-based
sanity checks.

Change-Id: I12dd8ca4a2273f7662bee46175822c9bbd99202a
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-05-03 23:18:45 +00:00