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sh: Consolidate CPU features in Kconfig.cpu.
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt committed Jan 28, 2008
1 parent 114f132 commit 4690bdc
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Showing 3 changed files with 104 additions and 118 deletions.
102 changes: 102 additions & 0 deletions arch/sh/Kconfig.cpu
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menu "Processor features"

choice
prompt "Endianess selection"
default CPU_LITTLE_ENDIAN
help
Some SuperH machines can be configured for either little or big
endian byte order. These modes require different kernels.

config CPU_LITTLE_ENDIAN
bool "Little Endian"

config CPU_BIG_ENDIAN
bool "Big Endian"

endchoice

config SH_FPU
bool "FPU support"
depends on CPU_HAS_FPU
default y
help
Selecting this option will enable support for SH processors that
have FPU units (ie, SH77xx).

This option must be set in order to enable the FPU.

config SH_FPU_EMU
bool "FPU emulation support"
depends on !SH_FPU && EXPERIMENTAL
default n
help
Selecting this option will enable support for software FPU emulation.
Most SH-3 users will want to say Y here, whereas most SH-4 users will
want to say N.

config SH_DSP
bool "DSP support"
depends on CPU_HAS_DSP
default y
help
Selecting this option will enable support for SH processors that
have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).

This option must be set in order to enable the DSP.

config SH_ADC
bool "ADC support"
depends on CPU_SH3
default y
help
Selecting this option will allow the Linux kernel to use SH3 on-chip
ADC module.

If unsure, say N.

config SH_STORE_QUEUES
bool "Support for Store Queues"
depends on CPU_SH4
help
Selecting this option will enable an in-kernel API for manipulating
the store queues integrated in the SH-4 processors.

config SPECULATIVE_EXECUTION
bool "Speculative subroutine return"
depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
help
This enables support for a speculative instruction fetch for
subroutine return. There are various pitfalls associated with
this, as outlined in the SH7780 hardware manual.

If unsure, say N.

config CPU_HAS_INTEVT
bool

config CPU_HAS_MASKREG_IRQ
bool

config CPU_HAS_IPR_IRQ
bool

config CPU_HAS_SR_RB
bool
help
This will enable the use of SR.RB register bank usage. Processors
that are lacking this bit must have another method in place for
accomplishing what is taken care of by the banked registers.

See <file:Documentation/sh/register-banks.txt> for further
information on SR.RB and register banking in the kernel in general.

config CPU_HAS_PTEA
bool

config CPU_HAS_DSP
bool

config CPU_HAS_FPU
bool

endmenu
104 changes: 1 addition & 103 deletions arch/sh/Kconfig.sh
Original file line number Diff line number Diff line change
Expand Up @@ -291,109 +291,7 @@ config CPU_SUBTYPE_SH7722
endchoice

source "arch/sh/mm/Kconfig"

menu "Processor features"

choice
prompt "Endianess selection"
default CPU_LITTLE_ENDIAN
help
Some SuperH machines can be configured for either little or big
endian byte order. These modes require different kernels.

config CPU_LITTLE_ENDIAN
bool "Little Endian"

config CPU_BIG_ENDIAN
bool "Big Endian"

endchoice

config SH_FPU
bool "FPU support"
depends on CPU_HAS_FPU
default y
help
Selecting this option will enable support for SH processors that
have FPU units (ie, SH77xx).

This option must be set in order to enable the FPU.

config SH_FPU_EMU
bool "FPU emulation support"
depends on !SH_FPU && EXPERIMENTAL
default n
help
Selecting this option will enable support for software FPU emulation.
Most SH-3 users will want to say Y here, whereas most SH-4 users will
want to say N.

config SH_DSP
bool "DSP support"
depends on CPU_HAS_DSP
default y
help
Selecting this option will enable support for SH processors that
have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).

This option must be set in order to enable the DSP.

config SH_ADC
bool "ADC support"
depends on CPU_SH3
default y
help
Selecting this option will allow the Linux kernel to use SH3 on-chip
ADC module.

If unsure, say N.

config SH_STORE_QUEUES
bool "Support for Store Queues"
depends on CPU_SH4
help
Selecting this option will enable an in-kernel API for manipulating
the store queues integrated in the SH-4 processors.

config SPECULATIVE_EXECUTION
bool "Speculative subroutine return"
depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
help
This enables support for a speculative instruction fetch for
subroutine return. There are various pitfalls associated with
this, as outlined in the SH7780 hardware manual.

If unsure, say N.

config CPU_HAS_INTEVT
bool

config CPU_HAS_MASKREG_IRQ
bool

config CPU_HAS_IPR_IRQ
bool

config CPU_HAS_SR_RB
bool
help
This will enable the use of SR.RB register bank usage. Processors
that are lacking this bit must have another method in place for
accomplishing what is taken care of by the banked registers.

See <file:Documentation/sh/register-banks.txt> for further
information on SR.RB and register banking in the kernel in general.

config CPU_HAS_PTEA
bool

config CPU_HAS_DSP
bool

config CPU_HAS_FPU
bool

endmenu
source "arch/sh/Kconfig.cpu"

menu "Board support"

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16 changes: 1 addition & 15 deletions arch/sh/Kconfig.sh64
Original file line number Diff line number Diff line change
Expand Up @@ -99,21 +99,7 @@ config CPU_SUBTYPE_SH5_103

endchoice

choice
prompt "Endianness"
default LITTLE_ENDIAN

config LITTLE_ENDIAN
bool "Little-Endian"

config BIG_ENDIAN
bool "Big-Endian"

endchoice

config SH_FPU
bool "FPU support"
default y
source "arch/sh/Kconfig.cpu"

config SH64_FPU_DENORM_FLUSH
depends on SH_FPU
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