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# Copyright (c) 2016 Intel Corporation
# SPDX-License-Identifier: Apache-2.0
menu "Nios II Options"
depends on NIOS2
config ARCH
string
default "nios2"
menu "Nios II Gen 2 Processor Options"
config CPU_NIOS2_GEN2
bool
default y
select BUILD_OUTPUT_HEX
select ARCH_HAS_EXTRA_EXCEPTION_INFO
help
This option signifies the use of a Nios II Gen 2 CPU
endmenu
menu "Nios II Family Options"
config GEN_ISR_TABLES
default y
config GEN_IRQ_VECTOR_TABLE
default n
config NUM_IRQS
int
default 32
config HAS_MUL_INSTRUCTION
bool
config HAS_DIV_INSTRUCTION
bool
config HAS_MULX_INSTRUCTION
bool
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.
config EXTRA_EXCEPTION_INFO
bool "Extra exception debug information"
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.
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
in alternate sections they must be declared
in headers with proper __attribute__((section)) or the linker will
error out.
config GP_ALL_DATA
bool "All data global pointer references"
help
Use GP relative access for all data in the program, not just
small data. Use this if your board has 64K or less of RAM.
endchoice
endmenu
endmenu