# ARM Architecture

#
# ARM has 32-bit(Aarch32) and 64-bit(Aarch64) implementations
#
config ARCH_ARM_AARCH32
    bool
    select ARCH_ARM
    help
      32-bit ARM architecture implementations, Except the M-profile.
      It is not limited to ARMv7-A but also ARMv7-R, ARMv8-A 32-bit and etc.

#
# Architecture Versions
#
config ARCH_ARM_V7M
    bool

config ARCH_ARM_V8M
    bool

config ARCH_ARM_V5TE
    bool

config ARCH_ARM_VER
    string
    default "armv7-m" if ARCH_ARM_V7M
    default "armv8-m" if ARCH_ARM_V8M
    default "armv5te" if ARCH_ARM_V5TE

#
# VFP Hardware
#
choice
    prompt "Choose FPU type"
    depends on !ARCH_FPU_DISABLE

    choice
        prompt "Choose FPU version"
        default ARCH_FPU_VFP_V4
        depends on !ARCH_FPU_DISABLE
        help
            Choose FPU version.
        
    config ARCH_FPU_VFP_V3
        bool "VFP_V3"
        help
        An optional extension to the Arm, Thumb, and ThumbEE instruction sets in the ARMv7-A and ARMv7-R profiles.
        VFPv3U is a variant of VFPv3 that supports the trapping of floating-point exceptions to support code.

    config ARCH_FPU_VFP_V4
        bool "VFP_V4"
        help
        An optional extension to the Arm, Thumb, and ThumbEE instruction sets in the ARMv7-A and ARMv7-R profiles.
        VFPv4U is a variant of VFPv4 that supports the trapping of floating-point exceptions to support code.
        VFPv4 and VFPv4U add both the Half-precision Extension and the fused multiply-add instructions to the features of VFPv3.
    endchoice

    choice
        prompt "Choose num of FPU doubleword registers"
        default ARCH_FPU_VFP_D32
        depends on !ARCH_FPU_DISABLE
        help
            Choose num of FPU doubleword registers.

    config ARCH_FPU_VFP_D16
        bool "FPU_VFP_D16"
        depends on ARCH_ARM_AARCH32
        help
        VPU implemented with 16 doubleword registers (16 x 64-bit).

    config ARCH_FPU_VFP_D32
        bool "FPU_VFP_D32"
        depends on ARCH_ARM_AARCH32
        help
        VPU implemented with 32 doubleword registers (32 x 64-bit).
    endchoice
endchoice
config ARCH_FPU
    string
    default "vfpv3"       if ARCH_FPU_VFP_V3 && ARCH_FPU_VFP_D32 && !COMPILER_ICCARM
    default "vfpv3-d16"   if ARCH_FPU_VFP_V3 && ARCH_FPU_VFP_D16 && !COMPILER_ICCARM
    default "vfpv4"       if ARCH_FPU_VFP_V4 && ARCH_FPU_VFP_D32 && !COMPILER_ICCARM
    default "vfpv4-d16"   if ARCH_FPU_VFP_V4 && ARCH_FPU_VFP_D16 && !COMPILER_ICCARM
    default "VFPv3"       if ARCH_FPU_VFP_V3 && ARCH_FPU_VFP_D32 && COMPILER_ICCARM
    default "VFPv3_D16"   if ARCH_FPU_VFP_V3 && ARCH_FPU_VFP_D16 && COMPILER_ICCARM
    default "VFPv4"       if ARCH_FPU_VFP_V4 && ARCH_FPU_VFP_D32 && COMPILER_ICCARM
    default "VFPv4_D16"   if ARCH_FPU_VFP_V4 && ARCH_FPU_VFP_D16 && COMPILER_ICCARM

#
# Supported Processor Cores
#
config ARCH_CORTEX_M3
    bool
    select ARCH_ARM_V7M
    select ARCH_ARM_AARCH32

config ARCH_CORTEX_M4
    bool
    select ARCH_ARM_V7M
    select ARCH_ARM_AARCH32

config ARCH_CORTEX_M7
    bool
    select ARCH_ARM_V7M
    select ARCH_ARM_AARCH32

config ARCH_CORTEX_M33
    bool
    select ARCH_ARM_V8M
    select ARCH_ARM_AARCH32

config ARCH_CORTEX_M55
    bool
    select ARCH_ARM_V8M
    select ARCH_ARM_AARCH32

config ARCH_ARM9
    bool
    select ARCH_ARM_V5TE
    select ARCH_ARM_AARCH32

config ARCH_CPU
    string
    default "cortex-m3" if ARCH_CORTEX_M3 && !COMPILER_ICCARM
    default "cortex-m4" if ARCH_CORTEX_M4 && !COMPILER_ICCARM
    default "cortex-m7" if ARCH_CORTEX_M7 && !COMPILER_ICCARM
    default "cortex-m33" if ARCH_CORTEX_M33 && !COMPILER_ICCARM
    default "cortex-m55" if ARCH_CORTEX_M55 && !COMPILER_ICCARM
    default "Cortex-M3" if ARCH_CORTEX_M3 && COMPILER_ICCARM
    default "Cortex-M4" if ARCH_CORTEX_M4 && COMPILER_ICCARM
    default "Cortex-M7" if ARCH_CORTEX_M7 && COMPILER_ICCARM
    default "Cortex-M33" if ARCH_CORTEX_M33 && COMPILER_ICCARM
    default "Cortex-M55" if ARCH_CORTEX_M55 && COMPILER_ICCARM
    default "arm9" if ARCH_ARM9