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https://github.com/zephyrproject-rtos/zephyr
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259b3d0095
Add initial support for the Cortex-M85 Core which is an implementation of the Armv8.1-M mainline architecture. The support is based on the Cortex-M55 support that already exists in Zephyr. Signed-off-by: Duy Nguyen <duy.nguyen.xa@renesas.com>
52 lines
1.6 KiB
CMake
52 lines
1.6 KiB
CMake
# SPDX-License-Identifier: Apache-2.0
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# Determines what argument to give to -mfpu= based on the
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# KConfig'uration and sets this to GCC_M_FPU
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if(CONFIG_FPU)
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if("${ARCH}" STREQUAL "arm")
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if(CONFIG_CPU_AARCH32_CORTEX_R)
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if(CONFIG_CPU_CORTEX_R4 OR CONFIG_CPU_CORTEX_R5) # VFPv3
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if(CONFIG_VFP_FEATURE_DOUBLE_PRECISION)
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set(GCC_M_FPU vfpv3-d16)
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elseif(CONFIG_VFP_FEATURE_SINGLE_PRECISION)
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set(GCC_M_FPU vfpv3xd)
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endif()
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if(CONFIG_VFP_FEATURE_HALF_PRECISION)
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set(GCC_M_FPU ${GCC_M_FPU}-fp16)
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endif()
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elseif(CONFIG_CPU_CORTEX_R52)
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if(CONFIG_VFP_FEATURE_DOUBLE_PRECISION)
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set(GCC_M_FPU neon-fp-armv8)
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elseif(CONFIG_VFP_FEATURE_SINGLE_PRECISION)
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set(GCC_M_FPU fpv5-sp-d16)
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endif()
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endif()
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elseif(CONFIG_CPU_CORTEX_M)
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# Defines a mapping from GCC_M_CPU to FPU
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if(CONFIG_CPU_HAS_FPU_DOUBLE_PRECISION)
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set(PRECISION_TOKEN)
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else()
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set(PRECISION_TOKEN sp-)
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endif()
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set(FPU_FOR_cortex-m4 fpv4-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m7 fpv5-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m33 fpv5-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m33+nodsp fpv5-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m55 auto)
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set(FPU_FOR_cortex-m55+nomve.fp auto)
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set(FPU_FOR_cortex-m55+nomve auto)
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set(FPU_FOR_cortex-m55+nodsp auto)
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set(FPU_FOR_cortex-m85 auto)
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set(FPU_FOR_cortex-m85+nomve.fp auto)
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set(FPU_FOR_cortex-m85+nomve auto)
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set(FPU_FOR_cortex-m85+nodsp auto)
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set(GCC_M_FPU ${FPU_FOR_${GCC_M_CPU}})
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endif()
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endif()
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endif() #CONFIG_FPU
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