diff options
Diffstat (limited to 'arch/Config.in.riscv')
-rw-r--r-- | arch/Config.in.riscv | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/Config.in.riscv b/arch/Config.in.riscv new file mode 100644 index 0000000000..4361890bf4 --- /dev/null +++ b/arch/Config.in.riscv @@ -0,0 +1,102 @@ +# RISC-V CPU ISA extensions. + +config BR2_RISCV_ISA_RVI + bool + +config BR2_RISCV_ISA_RVM + bool + +config BR2_RISCV_ISA_RVA + bool + +config BR2_RISCV_ISA_RVF + bool + +config BR2_RISCV_ISA_RVD + bool + +config BR2_RISCV_ISA_RVC + bool + +choice + prompt "Target Architecture Variant" + default BR2_riscv_g + +config BR2_riscv_g + bool "General purpose (G)" + select BR2_RISCV_ISA_RVI + select BR2_RISCV_ISA_RVM + select BR2_RISCV_ISA_RVA + select BR2_RISCV_ISA_RVF + select BR2_RISCV_ISA_RVD + help + General purpose (G) is equivalent to IMAFD. + +config BR2_riscv_custom + bool "Custom architecture" + select BR2_RISCV_ISA_RVI + select BR2_RISCV_ISA_CUSTOM_RVA + +endchoice + +if BR2_riscv_custom + +comment "Instruction Set Extensions" + +config BR2_RISCV_ISA_CUSTOM_RVM + bool "Integer Multiplication and Division (M)" + select BR2_RISCV_ISA_RVM + +config BR2_RISCV_ISA_CUSTOM_RVA + bool "Atomic Instructions (A)" + select BR2_RISCV_ISA_RVA + +config BR2_RISCV_ISA_CUSTOM_RVF + bool "Single-precision Floating-point (F)" + select BR2_RISCV_ISA_RVF + +config BR2_RISCV_ISA_CUSTOM_RVD + bool "Double-precision Floating-point (D)" + depends on BR2_RISCV_ISA_RVF + select BR2_RISCV_ISA_RVD + +config BR2_RISCV_ISA_CUSTOM_RVC + bool "Compressed Instructions (C)" + select BR2_RISCV_ISA_RVC +endif + +config BR2_RISCV_64 + bool + default y + select BR2_ARCH_IS_64 + +choice + prompt "Target ABI" + default BR2_RISCV_ABI_LP64 + +config BR2_RISCV_ABI_LP64 + bool "lp64" + depends on BR2_ARCH_IS_64 + +config BR2_RISCV_ABI_LP64F + bool "lp64f" + depends on BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVF + +config BR2_RISCV_ABI_LP64D + bool "lp64d" + depends on BR2_ARCH_IS_64 && BR2_RISCV_ISA_RVD +endchoice + +config BR2_ARCH + default "riscv64" if BR2_ARCH_IS_64 + +config BR2_ENDIAN + default "LITTLE" + +config BR2_GCC_TARGET_ABI + default "lp64" if BR2_RISCV_ABI_LP64 + default "lp64f" if BR2_RISCV_ABI_LP64F + default "lp64d" if BR2_RISCV_ABI_LP64D + +config BR2_READELF_ARCH_NAME + default "RISC-V" |