90 lines
1.9 KiB
Plaintext
90 lines
1.9 KiB
Plaintext
# Kconfig - ARM core configuration options
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#
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# Copyright (c) 2015 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config CPU_CORTEX
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bool
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# Omit prompt to signify "hidden" option
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default n
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help
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This option signifies the use of a CPU of the Cortex family.
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config CPU_CORTEX_M
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bool
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# Omit prompt to signify "hidden" option
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default n
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select CPU_CORTEX
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select ARCH_HAS_CUSTOM_SWAP_TO_MAIN
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help
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This option signifies the use of a CPU of the Cortex-M family.
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config CPU_HAS_SYSTICK
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bool
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# Omit prompt to signify "hidden" option
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default n
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help
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This option is enabled when the CPU has systick timer implemented.
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config CPU_HAS_FPU
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# Hidden config selected by CPU family
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bool
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default n
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help
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This option is enabled when the CPU has a hardware floating point
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unit.
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menu "Floating Point Options"
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depends on CPU_HAS_FPU
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config FLOAT
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bool
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prompt "Floating point registers"
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default n
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help
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This option allows tasks and fibers to use the floating point registers.
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By default, only a single task or fiber may use the registers.
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Disabling this option means that any task or fiber that uses a
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floating point register will get a fatal exception.
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config FP_SHARING
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bool
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prompt "Floating point register sharing"
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depends on FLOAT
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default n
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help
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This option allows multiple tasks and fibers to use the floating point
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registers.
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choice
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prompt "Floating point ABI"
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default FP_HARDABI
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depends on FLOAT
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config FP_HARDABI
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bool "Floating point Hard ABI"
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depends on FLOAT
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help
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This option selects the Floating point ABI in which hardware floating
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point instructions are generated and uses FPU-specific calling
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conventions
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config FP_SOFTABI
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bool "Floating point Soft ABI"
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depends on FLOAT
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help
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This option selects the Floating point ABI in which hardware floating
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point instructions are generated but soft-float calling conventions.
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endchoice
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endmenu
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if CPU_CORTEX_M
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source "arch/arm/core/cortex_m/Kconfig"
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endif
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