^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) # SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) menu "Processor features"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) prompt "Endianness selection"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) default CPU_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) Some SuperH machines can be configured for either little or big
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) endian byte order. These modes require different kernels.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) config CPU_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) bool "Little Endian"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) config CPU_BIG_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) bool "Big Endian"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) config SH_FPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) prompt "FPU support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) depends on CPU_HAS_FPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) Selecting this option will enable support for SH processors that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) have FPU units (ie, SH77xx).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) This option must be set in order to enable the FPU.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) config SH_FPU_EMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) def_bool n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) prompt "FPU emulation support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) depends on !SH_FPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) Selecting this option will enable support for software FPU emulation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) Most SH-3 users will want to say Y here, whereas most SH-4 users will
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) want to say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) config SH_DSP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) prompt "DSP support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) depends on CPU_HAS_DSP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) Selecting this option will enable support for SH processors that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) This option must be set in order to enable the DSP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) config SH_ADC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) prompt "ADC support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) depends on CPU_SH3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) Selecting this option will allow the Linux kernel to use SH3 on-chip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) ADC module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) config SH_STORE_QUEUES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) bool "Support for Store Queues"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) depends on CPU_SH4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) Selecting this option will enable an in-kernel API for manipulating
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) the store queues integrated in the SH-4 processors.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) config SPECULATIVE_EXECUTION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) bool "Speculative subroutine return"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7786
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) This enables support for a speculative instruction fetch for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) subroutine return. There are various pitfalls associated with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) this, as outlined in the SH7780 hardware manual.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) config CPU_HAS_INTEVT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) config CPU_HAS_IPR_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) config CPU_HAS_SR_RB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) This will enable the use of SR.RB register bank usage. Processors
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) that are lacking this bit must have another method in place for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) accomplishing what is taken care of by the banked registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) See <file:Documentation/sh/register-banks.rst> for further
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) information on SR.RB and register banking in the kernel in general.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) config CPU_HAS_PTEAEX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) config CPU_HAS_DSP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) config CPU_HAS_FPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) bool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) endmenu
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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