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60cf00d3f4
Support for MIPS IV was dropped in commit
dd45fe0efb ("arch/mips: remove
deprecated mips1/2/3/4 support"). However, even though it is an older
ISA than R1, it is still useful to support older MIPS-based
systems (e.g.: Cobalt Qube).
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
283 lines
7.2 KiB
Plaintext
283 lines
7.2 KiB
Plaintext
# mips default CPU ISAs
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config BR2_MIPS_CPU_MIPS32
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS32R2
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS32R3
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS32R5
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bool
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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config BR2_MIPS_CPU_MIPS32R6
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bool
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select BR2_MIPS_NAN_2008
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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config BR2_MIPS_CPU_MIPS64
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS64R2
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS64R3
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bool
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_CPU_MIPS64R5
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bool
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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config BR2_MIPS_CPU_MIPS64R6
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bool
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select BR2_MIPS_NAN_2008
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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choice
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prompt "Target Architecture Variant"
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default BR2_mips_32 if BR2_mips || BR2_mipsel
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default BR2_mips_64 if BR2_mips64 || BR2_mips64el
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depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
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help
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Specific CPU variant to use
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64bit capable: mips4, 64, 64r2, 64r3, 64r5, 64r6
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non-64bit capable: mips4, 32, 32r2, 32r3, 32r5, 32r6
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config BR2_mips_32
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bool "Generic MIPS32"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32
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config BR2_mips_32r2
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bool "Generic MIPS32R2"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R2
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config BR2_mips_32r3
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bool "Generic MIPS32R3"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R3
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config BR2_mips_32r5
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bool "Generic MIPS32R5"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R5
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config BR2_mips_32r6
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bool "Generic MIPS32R6"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R6
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config BR2_mips_interaptiv
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bool "interAptiv"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R2
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
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config BR2_mips_m5150
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bool "M5150"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R5
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select BR2_MIPS_NAN_2008
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
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config BR2_mips_m6250
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bool "M6250"
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depends on !BR2_ARCH_IS_64
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select BR2_ARCH_HAS_NO_TOOLCHAIN_BUILDROOT
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select BR2_MIPS_CPU_MIPS32R6
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config BR2_mips_p5600
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bool "P5600"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R5
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select BR2_MIPS_NAN_2008
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config BR2_mips_xburst
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bool "XBurst"
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depends on !BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS32R2
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help
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The Ingenic XBurst is a MIPS32R2 microprocessor. It has a
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bug in the FPU that can generate incorrect results in
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certain cases. The problem shows up when you have several
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fused madd instructions in sequence with dependant
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operands. This requires the -mno-fused-madd compiler option
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to be used in order to prevent emitting these instructions.
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See http://www.ingenic.com/en/?xburst.html
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config BR2_mips4
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bool "MIPS IV"
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config BR2_mips_64
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bool "Generic MIPS64"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64
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config BR2_mips_64r2
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bool "Generic MIPS64R2"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R2
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config BR2_mips_64r3
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bool "Generic MIPS64R3"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R3
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config BR2_mips_64r5
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bool "Generic MIPS64R5"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R5
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config BR2_mips_64r6
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bool "Generic MIPS64R6"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R6
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config BR2_mips_i6400
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bool "I6400"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R6
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_6
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config BR2_mips_octeon2
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bool "Octeon II"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R2
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help
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Marvell (formerly Cavium Networks) Octeon II CN60XX
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processors.
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config BR2_mips_octeon3
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bool "Octeon III"
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depends on BR2_ARCH_IS_64
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select BR2_MIPS_CPU_MIPS64R3
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help
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Marvell (formerly Cavium Networks) Octeon III CN7XXX
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processors.
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config BR2_mips_p6600
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bool "P6600"
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depends on BR2_ARCH_IS_64
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select BR2_ARCH_HAS_NO_TOOLCHAIN_BUILDROOT
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select BR2_MIPS_CPU_MIPS64R6
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endchoice
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choice
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prompt "Target ABI"
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default BR2_MIPS_NABI32
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depends on BR2_mips64 || BR2_mips64el
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help
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Application Binary Interface to use
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config BR2_MIPS_NABI32
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bool "n32"
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depends on BR2_ARCH_IS_64
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select BR2_KERNEL_64_USERLAND_32
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config BR2_MIPS_NABI64
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bool "n64"
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depends on BR2_ARCH_IS_64
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endchoice
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config BR2_MIPS_SOFT_FLOAT
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bool "Use soft-float"
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default y
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depends on !BR2_mips_octeon3 # hard-float only
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select BR2_SOFT_FLOAT
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help
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If your target CPU does not have a Floating Point Unit (FPU)
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or a kernel FPU emulator, but you still wish to support
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floating point functions, then everything will need to be
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compiled with soft floating point support (-msoft-float).
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choice
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prompt "FP mode"
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default BR2_MIPS_FP32_MODE_XX
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depends on !BR2_ARCH_IS_64 && !BR2_MIPS_SOFT_FLOAT
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help
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MIPS32 supports different FP modes (32,xx,64). Information
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about FP modes can be found here:
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https://sourceware.org/binutils/docs/as/MIPS-Options.html
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https://dmz-portal.imgtec.com/wiki/MIPS_O32_ABI_-_FR0_and_FR1_Interlinking#5._Generating_modeless_code
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config BR2_MIPS_FP32_MODE_32
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bool "32"
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depends on !BR2_MIPS_CPU_MIPS32R6
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config BR2_MIPS_FP32_MODE_XX
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bool "xx"
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_5
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config BR2_MIPS_FP32_MODE_64
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bool "64"
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depends on !BR2_MIPS_CPU_MIPS32
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endchoice
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config BR2_GCC_TARGET_FP32_MODE
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default "32" if BR2_MIPS_FP32_MODE_32
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default "xx" if BR2_MIPS_FP32_MODE_XX
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default "64" if BR2_MIPS_FP32_MODE_64
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config BR2_MIPS_NAN_LEGACY
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bool
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config BR2_MIPS_NAN_2008
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bool
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select BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9
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choice
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prompt "Target NaN"
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default BR2_MIPS_ENABLE_NAN_2008
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depends on BR2_mips_32r5 || BR2_mips_64r5
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help
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MIPS supports two different NaN encodings, legacy and 2008.
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Information about MIPS NaN encodings can be found here:
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https://sourceware.org/binutils/docs/as/MIPS-NaN-Encodings.html
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config BR2_MIPS_ENABLE_NAN_LEGACY
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bool "legacy"
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select BR2_MIPS_NAN_LEGACY
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config BR2_MIPS_ENABLE_NAN_2008
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bool "2008"
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depends on !BR2_MIPS_SOFT_FLOAT
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select BR2_MIPS_NAN_2008
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endchoice
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config BR2_GCC_TARGET_NAN
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default "legacy" if BR2_MIPS_NAN_LEGACY
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default "2008" if BR2_MIPS_NAN_2008
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config BR2_ARCH
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default "mips" if BR2_mips
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default "mipsel" if BR2_mipsel
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default "mips64" if BR2_mips64
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default "mips64el" if BR2_mips64el
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config BR2_NORMALIZED_ARCH
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default "mips"
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config BR2_ENDIAN
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default "LITTLE" if BR2_mipsel || BR2_mips64el
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default "BIG" if BR2_mips || BR2_mips64
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config BR2_GCC_TARGET_ARCH
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default "mips32" if BR2_mips_32
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default "mips32r2" if BR2_mips_32r2
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default "mips32r3" if BR2_mips_32r3
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default "mips32r5" if BR2_mips_32r5
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default "mips32r6" if BR2_mips_32r6
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default "interaptiv" if BR2_mips_interaptiv
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default "m5101" if BR2_mips_m5150
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default "m6201" if BR2_mips_m6250
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default "p5600" if BR2_mips_p5600
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default "mips32r2" if BR2_mips_xburst
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default "mips64" if BR2_mips_64
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default "mips64r2" if BR2_mips_64r2
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default "mips64r3" if BR2_mips_64r3
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default "mips64r5" if BR2_mips_64r5
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default "mips64r6" if BR2_mips_64r6
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default "i6400" if BR2_mips_i6400
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default "octeon2" if BR2_mips_octeon2
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default "octeon3" if BR2_mips_octeon3
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default "p6600" if BR2_mips_p6600
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default "mips4" if BR2_mips4
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config BR2_MIPS_OABI32
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bool
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default y if BR2_mips || BR2_mipsel
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config BR2_GCC_TARGET_ABI
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default "32" if BR2_MIPS_OABI32
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default "n32" if BR2_MIPS_NABI32
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default "64" if BR2_MIPS_NABI64
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config BR2_READELF_ARCH_NAME
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default "MIPS R3000"
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# vim: ft=kconfig
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# -*- mode:kconfig; -*-
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