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zephyr/arch/nios2/Kconfig

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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>
2016-04-22 05:47:09 +08:00
#
# Copyright (c) 2016 Intel Corporation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
choice
prompt "Nios II configuration selection"
depends on NIOS2
source "arch/nios2/soc/*/Kconfig.soc"
endchoice
menu "Nios II Options"
depends on NIOS2
config ARCH
string
default "nios2"
config ARCH_DEFCONFIG
string
default "arch/nios2/defconfig"
menu "Nios II Gen 2 Processor Options"
config CPU_NIOS2_GEN2
bool
default y
help
This option signifies the use of a Nios II Gen 2 CPU
endmenu
menu "Nios II Family Options"
config XIP
bool
nios2: enable XIP by default Change-Id: I930cbb61cf72de7c68b9a4289554004b4b2f8e21 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-07 03:54:19 +08:00
default y
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>
2016-04-22 05:47:09 +08:00
config IRQ_OFFLOAD
bool "Enable IRQ offload"
default n
help
Enable irq_offload() API which allows functions to be synchronously
run in interrupt context. Mainly useful for test cases.
nios2: set appropriate compiler flags for math support Nios II CPUs vary in configuration on whether they support 'mul', 'mulx', and 'div' family of instructions. The compiler can be told to use GCC integer library routines instead if needed. Ideally we would just pull the configuration out of system.h, but pulling include file #defines into the Make environment will involve some build system work that is best left to a later improvement. We've decided to take this build-time approach rather than handle unimplemented instruction exceptions, so remove the hook in exception.S Change-Id: I05be0d5ed4c1a49b23dca1550ee66fd5891044d2 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-25 02:27:39 +08:00
config HAS_MUL_INSTRUCTION
bool
default n
config HAS_DIV_INSTRUCTION
bool
default n
config HAS_MULX_INSTRUCTION
bool
default n
nios2: add config option to include reset vector Change-Id: I0e6257f30eb2ca778c094c0faa3721dc62e18d86 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-06-29 04:33:14 +08:00
config INCLUDE_RESET_VECTOR
bool "Include Reset vector"
default y
help
Include the reset vector stub, which enables instruction/data caches
and then jumps to __start. This code is typically located at the very
beginning of flash memory. You may need to omit this if using the
nios2-download tool since it refuses to load data anywhere other than
RAM.
nios2: optionally print cause code reason This is at the expense of code size. The QEMU and MAX10 targets have plenty of space so enable it for these boards, but leave off by default for others. Change-Id: I93fdb7db14232727e9953b22490d8869ff3b60e7 Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-07 05:35:26 +08:00
config EXTRA_EXCEPTION_INFO
bool "Extra exception debug information"
default n
help
Have exceptions print additional useful debugging information in
human-readable form, at the expense of code size. For example,
the cause code for an exception will be supplemented by a string
describing what that cause code means.
nios2: support more global pointer scenarios We now allow use of -mgpopt=global and -mgpopt=data. The 'global' option is now the default instead of compiler-default local, expanding global pointer usage to all small data in the system. For systems where all RAM is less than 64K, the 'data' option may be appropriate. Some fixes had to be made to the system in order to get around some issues: * prep_c.c no longer uses fake linker variables to figure out the size of data or BSS, as these gave the linker fits as it tried to compute relative addresses to them. * _k_task_ptr_idle is create by sysgen and placed in a special section. Any small data in a special section needs to be declared extern with __attribute__((section)) else the compiler will assume it's in .sdata. * same situation with extern references to k_pipe_t (fixed pipe_priv test) For legacy applications being ported to Nios II which do things that freak out global pointer calculation, it can be disabled entirely. Change-Id: I5eb86ee8aefb8e2fac49c5cdd104ee19cea23f6f Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-01 07:45:08 +08:00
choice
prompt "Global Pointer options"
default GP_GLOBAL
config GP_NONE
bool "No global pointer"
help
Do not use global pointer relative offsets at all
config GP_LOCAL
bool "Local data global pointer references"
help
Use global pointer relative offsets for small globals declared in the
same C file as the code that uses it.
config GP_GLOBAL
bool "Global data global pointer references"
help
Use global pointer relative offsets for small globals declared
anywhere in the executable. Note that if any small globals that are put
drivers: eliminate nano/micro kernel usage Jira: ZEP-1415 Change-Id: I4a009ff57edb799750175aef574a865589f96c14 Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-20 07:41:17 +08:00
in alternate sections (such as _k_task_list_ptr) they must be declared
in headers with proper __attribute__((section)) or the linker will
error out.
nios2: support more global pointer scenarios We now allow use of -mgpopt=global and -mgpopt=data. The 'global' option is now the default instead of compiler-default local, expanding global pointer usage to all small data in the system. For systems where all RAM is less than 64K, the 'data' option may be appropriate. Some fixes had to be made to the system in order to get around some issues: * prep_c.c no longer uses fake linker variables to figure out the size of data or BSS, as these gave the linker fits as it tried to compute relative addresses to them. * _k_task_ptr_idle is create by sysgen and placed in a special section. Any small data in a special section needs to be declared extern with __attribute__((section)) else the compiler will assume it's in .sdata. * same situation with extern references to k_pipe_t (fixed pipe_priv test) For legacy applications being ported to Nios II which do things that freak out global pointer calculation, it can be disabled entirely. Change-Id: I5eb86ee8aefb8e2fac49c5cdd104ee19cea23f6f Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-01 07:45:08 +08:00
config GP_ALL_DATA
bool "All data global pointer references"
help
Use GP relative access for all data in the program, not just
doc: Fix terminology in Kconfig files for 'platform' Completing the terminology change started with change 4008 by updating the Kconfig files processed to produce the online documentation, plus header files processed by doxygen. References to 'platform' are change to 'board' Change-Id: Id0ed3dc1439a0ea0a4bd19d4904889cf79bec33e Jira: ZEP-534 Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
2016-08-18 07:33:08 +08:00
small data. Use this if your board has 64K or less of RAM.
nios2: support more global pointer scenarios We now allow use of -mgpopt=global and -mgpopt=data. The 'global' option is now the default instead of compiler-default local, expanding global pointer usage to all small data in the system. For systems where all RAM is less than 64K, the 'data' option may be appropriate. Some fixes had to be made to the system in order to get around some issues: * prep_c.c no longer uses fake linker variables to figure out the size of data or BSS, as these gave the linker fits as it tried to compute relative addresses to them. * _k_task_ptr_idle is create by sysgen and placed in a special section. Any small data in a special section needs to be declared extern with __attribute__((section)) else the compiler will assume it's in .sdata. * same situation with extern references to k_pipe_t (fixed pipe_priv test) For legacy applications being ported to Nios II which do things that freak out global pointer calculation, it can be disabled entirely. Change-Id: I5eb86ee8aefb8e2fac49c5cdd104ee19cea23f6f Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2016-07-01 07:45:08 +08:00
endchoice
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>
2016-04-22 05:47:09 +08:00
endmenu
source "arch/nios2/soc/*/Kconfig"
endmenu