diff options
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/Kconfig.cpu | 102 | ||||
| -rw-r--r-- | arch/sh/Kconfig.sh | 104 | ||||
| -rw-r--r-- | arch/sh/Kconfig.sh64 | 16 |
3 files changed, 104 insertions, 118 deletions
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu new file mode 100644 index 000000000000..9f329dff88b1 --- /dev/null +++ b/arch/sh/Kconfig.cpu @@ -0,0 +1,102 @@ +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 diff --git a/arch/sh/Kconfig.sh b/arch/sh/Kconfig.sh index e6721b8e9dc1..23eea5cf4ca0 100644 --- a/arch/sh/Kconfig.sh +++ b/arch/sh/Kconfig.sh @@ -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" diff --git a/arch/sh/Kconfig.sh64 b/arch/sh/Kconfig.sh64 index 20db5e0c1401..10f5d30d3184 100644 --- a/arch/sh/Kconfig.sh64 +++ b/arch/sh/Kconfig.sh64 @@ -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 |