Kconfig 49.2 KB
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config MIPS
	bool
	default y
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	select HAVE_IDE
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	select HAVE_OPROFILE
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	# Horrible source of confusion.  Die, die, die ...
	select EMBEDDED
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	select RTC_LIB
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mainmenu "Linux/MIPS Kernel Configuration"

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menu "Machine selection"

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config ZONE_DMA
	bool

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choice
	prompt "System type"
	default SGI_IP22
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config MACH_ALCHEMY
	bool "Alchemy processor based machines"
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config BASLER_EXCITE
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	bool "Basler eXcite smart camera"
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_COHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_CPU_RM7K
	select IRQ_CPU_RM9K
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	select MIPS_RM9122
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	select SYS_HAS_CPU_RM9000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_KGDB
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	help
	  The eXcite is a smart camera platform manufactured by
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	  Basler Vision Technologies AG.
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config BCM47XX
	bool "BCM47XX based boards"
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SSB
	select SSB_DRIVER_MIPS
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	select SSB_DRIVER_EXTIF
	select SSB_PCICORE_HOSTMODE if PCI
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	select GENERIC_GPIO
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	select SYS_HAS_EARLY_PRINTK
	select CFE
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	help
	 Support for BCM47XX based boards

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config MIPS_COBALT
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	bool "Cobalt Server"
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	select CEVT_R4K
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	select CSRC_R4K
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	select CEVT_GT641XX
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
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	select I8253
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	select I8259
	select IRQ_CPU
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	select IRQ_GT641XX
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	select PCI_GT64XXX_PCI0
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	select SYS_HAS_CPU_NEVADA
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select GENERIC_HARDIRQS_NO__DO_IRQ
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config MACH_DECSTATION
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	bool "DECstations"
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	select BOOT_ELF32
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	select CEVT_DS1287
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	select CEVT_R4K
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	select CSRC_IOASIC
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	select CSRC_R4K
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	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
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	select DMA_NONCOHERENT
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	select NO_IOPORT
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	select IRQ_CPU
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	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
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	help
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	  This enables support for DEC's MIPS based workstations.  For details
	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
	  DECstation porting pages on <http://decstation.unix-ag.org/>.

	  If you have one of the following DECstation Models you definitely
	  want to choose R4xx0 for the CPU Type:

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		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260
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	  otherwise choose R3000.

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARC
	select ARC32
	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select IRQ_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
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	select SYS_SUPPORTS_100HZ
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	select GENERIC_HARDIRQS_NO__DO_IRQ
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	help
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	 This a family of machines based on the MIPS R4030 chipset which was
	 used by several vendors to build RISC/os and Windows NT workstations.
	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
	 Olivetti M700-10 workstations.

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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
	select HW_HAS_PCI
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	select IRQ_CPU
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	select PCI_GT64XXX_PCI0
	select MIPS_NILE4
	select R5000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select GENERIC_HARDIRQS_NO__DO_IRQ

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config LEMOTE_FULONG
	bool "Lemote Fulong mini-PC"
	select ARCH_SPARSEMEM_ENABLE
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	select CEVT_R4K
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	select CSRC_R4K
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	select SYS_HAS_CPU_LOONGSON2
	select DMA_NONCOHERENT
	select BOOT_ELF32
	select BOARD_SCACHE
	select HAVE_STD_PC_SERIAL_PORT
	select HW_HAS_PCI
	select I8259
	select ISA
	select IRQ_CPU
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_HAS_EARLY_PRINTK
	select GENERIC_HARDIRQS_NO__DO_IRQ
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	select GENERIC_ISA_DMA_SUPPORT_BROKEN
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	select CPU_HAS_WB
	help
	  Lemote Fulong mini-PC board based on the Chinese Loongson-2E CPU and
	  an FPGA northbridge

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config MIPS_ATLAS
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	bool "MIPS Atlas board"
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	select BOOT_ELF32
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select SYS_HAS_EARLY_PRINTK
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	select IRQ_CPU
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	select HW_HAS_PCI
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	select MIPS_BOARDS_GEN
	select MIPS_BONITO64
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	select PCI_GT64XXX_PCI0
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	select MIPS_MSC
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	select RM7000_CPU_SCACHE
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MULTITHREADING if EXPERIMENTAL
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	select SYS_SUPPORTS_SMARTMIPS
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	select GENERIC_HARDIRQS_NO__DO_IRQ
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	help
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	  This enables support for the MIPS Technologies Atlas evaluation
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	  board.

config MIPS_MALTA
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	bool "MIPS Malta board"
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	select ARCH_MAY_HAVE_PC_FDC
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	select BOOT_ELF32
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
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	select IRQ_CPU
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	select IRQ_GIC
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	select HW_HAS_PCI
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	select I8253
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	select I8259
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	select MIPS_BOARDS_GEN
	select MIPS_BONITO64
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	select MIPS_CPU_SCACHE
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	select PCI_GT64XXX_PCI0
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	select MIPS_MSC
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_SMARTMIPS
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	help
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	  This enables support for the MIPS Technologies Malta evaluation
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	  board.

config MIPS_SEAD
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	bool "MIPS SEAD board"
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_CPU
	select DMA_NONCOHERENT
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	select SYS_HAS_EARLY_PRINTK
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	select MIPS_BOARDS_GEN
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_SMARTMIPS
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	help
	  This enables support for the MIPS Technologies SEAD evaluation
	  board.
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config MIPS_SIM
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	bool 'MIPS simulator (MIPSsim)'
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select SYS_HAS_EARLY_PRINTK
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	select IRQ_CPU
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	select BOOT_RAW
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	help
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	  This option enables support for MIPS Technologies MIPSsim software
	  emulator.
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config MARKEINS
	bool "NEC EMMA2RH Mark-eins"
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_HAS_CPU_R5000
	help
	  This enables support for the R5432-based NEC Mark-eins
	  boards with R5500 CPU.

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config MACH_VR41XX
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	bool "NEC VR4100 series based machines"
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	select CEVT_R4K
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	select CSRC_R4K
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	select SYS_HAS_CPU_VR41XX
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	select GENERIC_HARDIRQS_NO__DO_IRQ
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config PNX8550_JBS
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	bool "NXP PNX8550 based JBS board"
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	select PNX8550
	select SYS_SUPPORTS_LITTLE_ENDIAN

config PNX8550_STB810
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	bool "NXP PNX8550 based STB810 board"
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	select PNX8550
	select SYS_SUPPORTS_LITTLE_ENDIAN

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config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
	depends on EXPERIMENTAL
	select DMA_NONCOHERENT
	select SWAP_IO_SPACE
	select NO_EXCEPT_FILL
	select BOOT_RAW
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_KGDB
	select IRQ_CPU
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
	help
	  This adds support for the PMC-Sierra family of Multi-Service
	  Processor System-On-A-Chips.  These parts include a number
	  of integrated peripherals, interfaces and DSPs in addition to
	  a variety of MIPS cores.

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config PMC_YOSEMITE
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	bool "PMC-Sierra Yosemite eval board"
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_COHERENT
	select HW_HAS_PCI
	select IRQ_CPU
	select IRQ_CPU_RM7K
	select IRQ_CPU_RM9K
	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_RM9000
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
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	select SYS_SUPPORTS_KGDB
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	select SYS_SUPPORTS_SMP
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	help
	  Yosemite is an evaluation board for the RM9000x2 processor
	  manufactured by PMC-Sierra.
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config SGI_IP22
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	bool "SGI IP22 (Indy/Indigo2)"
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	select ARC
	select ARC32
	select BOOT_ELF32
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION
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	select DMA_NONCOHERENT
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	select HW_HAS_EISA
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	select I8253
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	select I8259
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	select IP22_CPU_SCACHE
	select IRQ_CPU
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	select GENERIC_ISA_DMA_SUPPORT_BROKEN
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	select SGI_HAS_DS1286
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
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	help
	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
	  that runs on these, say Y here.

config SGI_IP27
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	bool "SGI IP27 (Origin200/2000)"
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	select ARC
	select ARC64
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	select BOOT_ELF64
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	select DEFAULT_SGI_PARTITION
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	select DMA_IP27
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	select SYS_HAS_EARLY_PRINTK
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	select HW_HAS_PCI
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	select NR_CPUS_DEFAULT_64
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	select SYS_HAS_CPU_R10000
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_KGDB
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	select SYS_SUPPORTS_NUMA
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	select SYS_SUPPORTS_SMP
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	select GENERIC_HARDIRQS_NO__DO_IRQ
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	help
	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
	  workstations.  To compile a Linux kernel that runs on these, say Y
	  here.

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config SGI_IP28
	bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	select ARC
	select ARC64
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select IRQ_CPU
	select HW_HAS_EISA
	select I8253
	select I8259
	select SGI_HAS_DS1286
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
      help
        This is the SGI Indigo2 with R10000 processor.  To compile a Linux
        kernel that runs on these, say Y here.

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config SGI_IP32
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	bool "SGI IP32 (O2)"
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	select ARC
	select ARC32
	select BOOT_ELF32
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
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	select IRQ_CPU
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	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
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	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
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	select SYS_HAS_CPU_NEVADA
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_BIG_ENDIAN
	help
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	  If you want this kernel to run on SGI O2 workstation, say Y here.
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config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
	depends on EXPERIMENTAL
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	select BOOT_ELF32
	select DMA_COHERENT
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	select SIBYTE_BCM1120
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_SB1
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

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config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
	depends on EXPERIMENTAL
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	select BOOT_ELF32
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	select DMA_COHERENT
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	select SIBYTE_BCM1120
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_SB1
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	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
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	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
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	select SIBYTE_BCM1125
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_SB1
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	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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config SIBYTE_RHONE
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	bool "Sibyte BCM91125E-Rhone"
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	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_SB1
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
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	select BOOT_ELF32
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	select DMA_COHERENT
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	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_SB1
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	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_KGDB
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select ZONE_DMA32 if 64BIT
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532 533
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
534 535 536
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
537
	select NR_CPUS_DEFAULT_2
538 539
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
540
	select SYS_HAS_CPU_SB1
541 542 543
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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545 546
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
547 548 549
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
550
	select NR_CPUS_DEFAULT_2
551 552
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
553
	select SYS_HAS_CPU_SB1
554 555
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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557 558
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
559 560
	select BOOT_ELF32
	select DMA_COHERENT
561 562
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
563
	select SWAP_IO_SPACE
564
	select SYS_HAS_CPU_SB1
565
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
567
	select SYS_SUPPORTS_LITTLE_ENDIAN
568
	select ZONE_DMA32 if 64BIT
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570 571
config SNI_RM
	bool "SNI RM200/300/400"
572 573
	select ARC if CPU_LITTLE_ENDIAN
	select ARC32 if CPU_LITTLE_ENDIAN
574
	select SNIPROM if CPU_BIG_ENDIAN
575
	select ARCH_MAY_HAVE_PC_FDC
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	select BOOT_ELF32
577
	select CEVT_R4K
578
	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
582
	select HW_HAS_EISA
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	select HW_HAS_PCI
584
	select IRQ_CPU
585
	select I8253
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	select I8259
	select ISA
588
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
589
	select SYS_HAS_CPU_R4X00
590
	select SYS_HAS_CPU_R5000
591
	select SYS_HAS_CPU_R10000
592
	select R5000_CPU_SCACHE
593
	select SYS_HAS_EARLY_PRINTK
594 595
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
596
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
598
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	help
600 601
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
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	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

605
config TOSHIBA_JMR3927
606
	bool "Toshiba JMR-TX3927 board"
607
	select CEVT_TXX9
608 609 610
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select MIPS_TX3927
611
	select IRQ_TXX9
612
	select SWAP_IO_SPACE
613
	select SYS_HAS_CPU_TX39XX
614
	select SYS_SUPPORTS_32BIT_KERNEL
615
	select SYS_SUPPORTS_LITTLE_ENDIAN
616
	select SYS_SUPPORTS_BIG_ENDIAN
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	select GENERIC_HARDIRQS_NO__DO_IRQ
618
	select GPIO_TXX9
619

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config TOSHIBA_RBTX4927
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	bool "Toshiba RBTX49[23]7 board"
622
	select CEVT_R4K
623
	select CSRC_R4K
624
	select CEVT_TXX9
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	select DMA_NONCOHERENT
	select HAS_TXX9_SERIAL
	select HW_HAS_PCI
628 629 630
	select IRQ_CPU
	select IRQ_TXX9
	select I8259 if TOSHIBA_FPCIB0
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	select SWAP_IO_SPACE
632
	select SYS_HAS_CPU_TX49XX
633 634
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
635
	select SYS_SUPPORTS_LITTLE_ENDIAN
636
	select SYS_SUPPORTS_BIG_ENDIAN
637
	select SYS_SUPPORTS_KGDB
638
	select GENERIC_HARDIRQS_NO__DO_IRQ
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	help
	  This Toshiba board is based on the TX4927 processor. Say Y here to
	  support this machine type

643
config TOSHIBA_RBTX4938
644
	bool "Toshiba RBTX4938 board"
645
	select CEVT_R4K
646
	select CSRC_R4K
647
	select CEVT_TXX9
648 649 650
	select DMA_NONCOHERENT
	select HAS_TXX9_SERIAL
	select HW_HAS_PCI
651 652
	select IRQ_CPU
	select IRQ_TXX9
653
	select SWAP_IO_SPACE
654
	select SYS_HAS_CPU_TX49XX
655 656 657
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
658
	select SYS_SUPPORTS_KGDB
659
	select GENERIC_HARDIRQS_NO__DO_IRQ
660
	select GPIO_TXX9
661 662 663 664
	help
	  This Toshiba board is based on the TX4938 processor. Say Y here to
	  support this machine type

665 666
config WR_PPMC
	bool "Wind River PPMC board"
667
	select CEVT_R4K
668
	select CSRC_R4K
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687
	select IRQ_CPU
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select PCI_GT64XXX_PCI0
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  This enables support for the Wind River MIPS32 4KC PPMC evaluation
	  board, which is based on GT64120 bridge chip.

688
endchoice
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690
source "arch/mips/au1000/Kconfig"
691
source "arch/mips/basler/excite/Kconfig"
692
source "arch/mips/jazz/Kconfig"
693
source "arch/mips/lasat/Kconfig"
694
source "arch/mips/pmc-sierra/Kconfig"
695
source "arch/mips/sgi-ip27/Kconfig"
696
source "arch/mips/sibyte/Kconfig"
697
source "arch/mips/tx4927/Kconfig"
698
source "arch/mips/tx4938/Kconfig"
699
source "arch/mips/vr41xx/Kconfig"
700

701 702
endmenu

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config GENERIC_LOCKBREAK
	bool
	default y
	depends on SMP && PREEMPT

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config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

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config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

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config ARCH_SUPPORTS_OPROFILE
	bool
	default y if !MIPS_MT_SMTC

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config GENERIC_FIND_NEXT_BIT
	bool
	default y

config GENERIC_HWEIGHT
	bool
	default y

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config GENERIC_CALIBRATE_DELAY
	bool
	default y

739 740 741 742
config GENERIC_CLOCKEVENTS
	bool
	default y

743 744 745 746
config GENERIC_TIME
	bool
	default y

747 748 749 750
config GENERIC_CMOS_UPDATE
	bool
	default y

751 752 753 754
config SCHED_NO_NO_OMIT_FRAME_POINTER
	bool
	default y

755 756 757 758
config GENERIC_HARDIRQS_NO__DO_IRQ
	bool
	default n

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#
# Select some configuration options automatically based on user selections.
#
config ARC
	bool

765 766 767
config ARCH_MAY_HAVE_PC_FDC
	bool

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config BOOT_RAW
	bool

771 772 773
config CEVT_BCM1480
	bool

774 775 776
config CEVT_DS1287
	bool

777 778 779
config CEVT_GT641XX
	bool

780 781 782
config CEVT_R4K
	bool

783 784 785
config CEVT_SB1250
	bool

786 787 788
config CEVT_TXX9
	bool

789 790 791
config CSRC_BCM1480
	bool

792 793 794
config CSRC_IOASIC
	bool

795 796 797
config CSRC_R4K
	bool

798 799 800
config CSRC_SB1250
	bool

801 802 803 804 805
config GPIO_TXX9
	select GENERIC_GPIO
	select HAVE_GPIO_LIB
	bool

806 807 808
config CFE
	bool

809
config DMA_COHERENT
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	bool

812
config DMA_IP27
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	bool

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config DMA_NONCOHERENT
	bool
	select DMA_NEED_PCI_MAP_STATE

config DMA_NEED_PCI_MAP_STATE
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	bool

config EARLY_PRINTK
823 824 825 826 827 828 829 830
	bool "Early printk" if EMBEDDED && DEBUG_KERNEL
	depends on SYS_HAS_EARLY_PRINTK
	default y
	help
	  This option enables special console drivers which allow the kernel
	  to print messages very early in the bootup process.

	  This is useful for kernel debugging when your machine crashes very
831 832 833
	  early before the console code is initialized. For normal operation,
	  it is not recommended because it looks ugly on some machines and
	  doesn't cooperate with an X server. You should normally say N here,
834 835 836
	  unless you want to debug such a crash.

config SYS_HAS_EARLY_PRINTK
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	bool

839 840 841 842
config HOTPLUG_CPU
	bool
	default n

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config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

852 853 854
config MIPS_NILE4
	bool

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config MIPS_DISABLE_OBSOLETE_IDE
	bool

858 859 860
config SYNC_R4K
	bool

861 862 863
config NO_IOPORT
	def_bool n

864 865 866 867
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n

868 869
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
870
	select GENERIC_ISA_DMA
871

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config GENERIC_GPIO
	bool

875
#
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# Endianess selection.  Sufficiently obscure so many users don't know what to
877 878 879 880 881
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
	prompt "Endianess selection"
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	help
	  Some MIPS machines can be configured for either little or big endian
884
	  byte order. These modes require different kernels and a different
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	  Linux distribution.  In general there is one preferred byteorder for a
886
	  particular system but some systems are just as commonly used in the
887
	  one or the other endianness.
888 889 890 891 892 893 894 895 896 897 898 899

config CPU_BIG_ENDIAN
	bool "Big endian"
	depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
	bool "Little endian"
	depends on SYS_SUPPORTS_LITTLE_ENDIAN
	help

endchoice

900 901 902
config SYS_SUPPORTS_APM_EMULATION
	bool

903 904 905 906 907
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

915 916 917
config IRQ_CPU_RM9K
	bool

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config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

924 925 926
config IRQ_TXX9
	bool

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config IRQ_GT641XX
	bool

930 931 932
config IRQ_GIC
	bool

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config MIPS_BOARDS_GEN
	bool

936
config PCI_GT64XXX_PCI0
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	bool

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config NO_EXCEPT_FILL
	bool

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config MIPS_TX3927
	bool
	select HAS_TXX9_SERIAL

946 947 948 949
config MIPS_RM9122
	bool
	select SERIAL_RM9000

950 951 952 953 954 955 956 957
config PNX8550
	bool
	select SOC_PNX8550

config SOC_PNX8550
	bool
	select DMA_NONCOHERENT
	select HW_HAS_PCI
958
	select SYS_HAS_CPU_MIPS32_R1
959
	select SYS_HAS_EARLY_PRINTK
960
	select SYS_SUPPORTS_32BIT_KERNEL
961
	select GENERIC_HARDIRQS_NO__DO_IRQ
962
	select SYS_SUPPORTS_KGDB
963
	select GENERIC_GPIO
964

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config SWAP_IO_SPACE
	bool

968 969 970 971 972
config EMMA2RH
	bool
	depends on MARKEINS
	default y

973 974 975
config SERIAL_RM9000
	bool

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config SGI_HAS_DS1286
	bool

config SGI_HAS_INDYDOG
	bool

config SGI_HAS_SEEQ
	bool

config SGI_HAS_WD93
	bool

config SGI_HAS_ZILOG
	bool

config SGI_HAS_I8042
	bool

config DEFAULT_SGI_PARTITION
	bool

997 998 999
config ARC32
	bool

1000 1001 1002
config SNIPROM
	bool

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config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
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	default "4" if MACH_DECSTATION
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	default "7" if SGI_IP27 || SGI_IP28 || SNI_RM
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	default "4" if PMC_MSP4200_EVAL
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	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
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	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
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config ARC_MEMORY
	bool
1022
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
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	default y

config ARC_PROMLIB
	bool
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	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
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	default y

config ARC64
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1042 1043 1044 1045 1046 1047 1048 1049 1050 1051
config CPU_LOONGSON2
	bool "Loongson 2"
	depends on SYS_HAS_CPU_LOONGSON2
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

1052 1053
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1054
	depends on SYS_HAS_CPU_MIPS32_R1
1055
	select CPU_HAS_LLSC
1056
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1058
	select CPU_SUPPORTS_HIGHMEM
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	help
1060
	  Choose this option to build a kernel for release 1 or later of the
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	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
	  Release 2 of the MIPS32 architecture is available since several
	  years so chances are you even have a MIPS32 Release 2 processor
	  in which case you should choose CPU_MIPS32_R2 instead for better
	  performance.

config CPU_MIPS32_R2
	bool "MIPS32 Release 2"
1072
	depends on SYS_HAS_CPU_MIPS32_R2
1073
	select CPU_HAS_LLSC
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1076
	select CPU_SUPPORTS_HIGHMEM
1077
	help
1078
	  Choose this option to build a kernel for release 2 or later of the
1079 1080 1081 1082 1083 1084 1085
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1086
	depends on SYS_HAS_CPU_MIPS64_R1
1087
	select CPU_HAS_LLSC
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	select CPU_HAS_PREFETCH
1089 1090
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1091
	select CPU_SUPPORTS_HIGHMEM
1092 1093 1094 1095 1096 1097
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
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	  Release 2 of the MIPS64 architecture is available since several
	  years so chances are you even have a MIPS64 Release 2 processor
	  in which case you should choose CPU_MIPS64_R2 instead for better
	  performance.

config CPU_MIPS64_R2
	bool "MIPS64 Release 2"
1105
	depends on SYS_HAS_CPU_MIPS64_R2
1106
	select CPU_HAS_LLSC
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1110
	select CPU_SUPPORTS_HIGHMEM
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	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
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config CPU_R3000
	bool "R3000"
1120
	depends on SYS_HAS_CPU_R3000
1121
	select CPU_HAS_WB
1122
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
1134
	depends on SYS_HAS_CPU_TX39XX
1135
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1139
	depends on SYS_HAS_CPU_VR41XX
1140 1141
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1143
	  The options selects support for the NEC VR4100 series of processors.
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	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4300
	bool "R4300"
1150
	depends on SYS_HAS_CPU_R4300
1151
	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R4300-series processors.

config CPU_R4X00
	bool "R4x00"
1159
	depends on SYS_HAS_CPU_R4X00
1160
	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1169
	depends on SYS_HAS_CPU_TX49XX
1170
	select CPU_HAS_LLSC
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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config CPU_R5000
	bool "R5000"
1177
	depends on SYS_HAS_CPU_R5000
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	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1186
	depends on SYS_HAS_CPU_R5432
1187
	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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config CPU_R6000
	bool "R6000"
1193
	depends on EXPERIMENTAL
1194
	select CPU_HAS_LLSC
1195
	depends on SYS_HAS_CPU_R6000
1196
	select CPU_SUPPORTS_32BIT_KERNEL
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	help
	  MIPS Technologies R6000 and R6000A series processors.  Note these
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	  processors are extremely rare and the support for them is incomplete.
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config CPU_NEVADA
	bool "RM52xx"
1203
	depends on SYS_HAS_CPU_NEVADA
1204
	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1212
	depends on EXPERIMENTAL
1213
	depends on SYS_HAS_CPU_R8000
1214
	select CPU_HAS_LLSC
1215
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_64BIT_KERNEL
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	help
	  MIPS Technologies R8000 processors.  Note these processors are
	  uncommon and the support for them is incomplete.

config CPU_R10000
	bool "R10000"
1223
	depends on SYS_HAS_CPU_R10000
1224
	select CPU_HAS_LLSC
1225
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1234
	depends on SYS_HAS_CPU_RM7000
1235
	select CPU_HAS_LLSC
1236
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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config CPU_RM9000
	bool "RM9000"
1243
	depends on SYS_HAS_CPU_RM9000
1244
	select CPU_HAS_LLSC
1245
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1249
	select WEAK_ORDERING
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config CPU_SB1
	bool "SB1"
1253
	depends on SYS_HAS_CPU_SB1
1254
	select CPU_HAS_LLSC
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	select WEAK_ORDERING
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endchoice

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config SYS_HAS_CPU_LOONGSON2
	bool

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config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4300
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

config SYS_HAS_CPU_R5432
	bool

config SYS_HAS_CPU_R6000
	bool

config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R8000
	bool

config SYS_HAS_CPU_R10000
	bool

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_RM9000
	bool

config SYS_HAS_CPU_SB1
	bool

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#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
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config WEAK_ORDERING
	bool
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#
# CPU may reorder reads and writes beyond LL/SC
# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
#
config WEAK_REORDERING_BEYOND_LLSC
	bool
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endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
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#
config CPU_MIPS32
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2

config CPU_MIPS64
	bool
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2

#
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# These two indicate the revision of the architecture, either Release 1 or Release 2
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#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool

menu "Kernel type"

choice

	prompt "Kernel code model"
	help
	  You should only select this option if you have a workload that
	  actually benefits from 64-bit processing or if your machine has
	  large memory.  You will only be presented a single option in this
	  menu if your system does not support both 32-bit and 64-bit kernels.

config 32BIT
	bool "32-bit kernel"
	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
	select TRAD_SIGNALS
	help
	  Select this option if you want to build a 32-bit kernel.
config 64BIT
	bool "64-bit kernel"
	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
	help
	  Select this option if you want to build a 64-bit kernel.

endchoice

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
	help
	 This option select the standard 4kB Linux page size.  On some
	 R3000-family processors this is the only available page size.  Using
	 4kB page size will minimize memory consumption and is therefore
	 recommended for low memory systems.

config PAGE_SIZE_8KB
	bool "8kB"
	depends on EXPERIMENTAL && CPU_R8000
	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on the R8000 processor.  Not that at the time of this writing
	  this option is still high experimental; there are also issues with
	  compatibility of user applications.

config PAGE_SIZE_16KB
	bool "16kB"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
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	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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config PAGE_SIZE_64KB
	bool "64kB"
	depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
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	  writing this option is still high experimental.
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endchoice

config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

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#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

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config R5000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config RM7000_CPU_SCACHE
	bool
	select BOARD_SCACHE

config SIBYTE_DMA_PAGEOPS
	bool "Use DMA to clear/copy pages"
	depends on CPU_SB1
	help
	  Instead of using the CPU to zero and copy pages, use a Data Mover
	  channel.  These DMA channels are otherwise unused by the standard
	  SiByte Linux port.  Seems to give a small performance benefit.

config CPU_HAS_PREFETCH
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	bool
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choice
	prompt "MIPS MT options"
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config MIPS_MT_DISABLED
	bool "Disable multithreading support."
	help
	  Use this option if your workload can't take advantage of
	  MIPS hardware multithreading support.  On systems that don't have
	  the option of an MT-enabled processor this option will be the only
	  option in this menu.
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config MIPS_MT_SMP
	bool "Use 1 TC on each available VPE for SMP"
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	depends on SYS_SUPPORTS_MULTITHREADING
1482
	select CPU_MIPSR2_IRQ_VI
1483
	select CPU_MIPSR2_IRQ_EI
1484
	select MIPS_MT
1485
	select NR_CPUS_DEFAULT_2
1486
	select SMP
1487
	select SYS_SUPPORTS_SCHED_SMT if SMP
1488
	select SYS_SUPPORTS_SMP
1489
	select SMP_UP
1490
	help
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	  This is a kernel model which is also known a VSMP or lately
	  has been marketesed into SMVP.
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config MIPS_MT_SMTC
	bool "SMTC: Use all TCs on all VPEs for SMP"
	depends on CPU_MIPS32_R2
	#depends on CPU_MIPS64_R2		# once there is hardware ...
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	depends on SYS_SUPPORTS_MULTITHREADING
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	select GENERIC_CLOCKEVENTS_BROADCAST
1500
	select CPU_MIPSR2_IRQ_VI
1501
	select CPU_MIPSR2_IRQ_EI
1502
	select MIPS_MT
1503
	select NR_CPUS_DEFAULT_8
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	select SMP
1505
	select SYS_SUPPORTS_SMP
1506
	select SMP_UP
1507
	help
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	  This is a kernel model which is known a SMTC or lately has been
	  marketesed into SMVP.
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endchoice

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config MIPS_MT
	bool

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config SCHED_SMT
	bool "SMT (multithreading) scheduler support"
	depends on SYS_SUPPORTS_SCHED_SMT
	default n
	help
	  SMT scheduler support improves the CPU scheduler's decision making
	  when dealing with MIPS MT enabled cores at a cost of slightly
	  increased overhead in some places. If unsure say N here.

config SYS_SUPPORTS_SCHED_SMT
	bool


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config SYS_SUPPORTS_MULTITHREADING
	bool

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config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
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	depends on MIPS_MT_SMP || MIPS_MT_SMTC

config MIPS_VPE_LOADER
	bool "VPE loader support."
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select MIPS_MT
	help
	  Includes a loader for loading an elf relocatable object
	  onto another VPE and running it.
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config MIPS_MT_SMTC_INSTANT_REPLAY
	bool "Low-latency Dispatch of Deferred SMTC IPIs"
1549
	depends on MIPS_MT_SMTC && !PREEMPT
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	default y
	help
	  SMTC pseudo-interrupts between TCs are deferred and queued
	  if the target TC is interrupt-inhibited (IXMT). In the first
	  SMTC prototypes, these queued IPIs were serviced on return
	  to user mode, or on entry into the kernel idle loop. The
	  INSTANT_REPLAY option dispatches them as part of local_irq_restore()
	  processing, which adds runtime overhead (hence the option to turn
	  it off), but ensures that IPIs are handled promptly even under
	  heavy I/O interrupt load.

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config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
	default y
	help
	  To support multiple TC microthreads acting as "CPUs" within
	  a VPE, VPE-wide interrupt mask bits must be specially manipulated
	  during interrupt handling. To support legacy drivers and interrupt
	  controller management code, SMTC has a "backstop" to track and
	  if necessary restore the interrupt mask. This has some performance
	  impact on interrupt service overhead. Disable it only if you know
	  what you are doing.

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config MIPS_MT_SMTC_IRQAFF
	bool "Support IRQ affinity API"
	depends on MIPS_MT_SMTC
	default n
	help
	  Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.)
	  for SMTC Linux kernel. Requires platform support, of which
	  an example can be found in the MIPS kernel i8259 and Malta
	  platform code.  It is recommended that MIPS_MT_SMTC_INSTANT_REPLAY
	  be enabled if MIPS_MT_SMTC_IRQAFF is used. Adds overhead to
	  interrupt dispatch, and should be used only if you know what
	  you are doing.

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config MIPS_VPE_LOADER_TOM
	bool "Load VPE program into memory hidden from linux"
	depends on MIPS_VPE_LOADER
	default y
	help
	  The loader can use memory that is present but has been hidden from
	  Linux using the kernel command line option "mem=xxMB". It's up to
	  you to ensure the amount you put in the option and the space your
	  program requires is less or equal to the amount physically present.

# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
config MIPS_VPE_APSP_API
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	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
1602

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config MIPS_APSP_KSPD
	bool "Enable KSPD"
	depends on MIPS_VPE_APSP_API
	default y
	help
	  KSPD is a kernel daemon that accepts syscall requests from the SP
	  side, actions them and returns the results. It also handles the
	  "exit" syscall notifying other kernel modules the SP program is
	  exiting.  You probably want to say yes here.

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config SB1_PASS_1_WORKAROUNDS
	bool
	depends on CPU_SB1_PASS_1
	default y

config SB1_PASS_2_WORKAROUNDS
	bool
	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
	default y

config SB1_PASS_2_1_WORKAROUNDS
	bool
	depends on CPU_SB1 && CPU_SB1_PASS_2
	default y

config 64BIT_PHYS_ADDR
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	bool
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config CPU_HAS_LLSC
1632
	bool
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config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
	bool "Support for the SmartMIPS ASE"
	help
	  SmartMIPS is a extension of the MIPS32 architecture aimed at
	  increased security at both hardware and software level for
	  smartcards.  Enabling this option will allow proper use of the
	  SmartMIPS instructions by Linux applications.  However a kernel with
	  this option will not work on a MIPS core without SmartMIPS core.  If
	  you don't know you probably don't have SmartMIPS and should say N
	  here.

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config CPU_HAS_WB
1647
	bool
1648

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#
# Vectored interrupt mode is an R2 feature
#
1652
config CPU_MIPSR2_IRQ_VI
1653
	bool
1654

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#
# Extended interrupt mode is an R2 feature
#
1658
config CPU_MIPSR2_IRQ_EI
1659
	bool
1660

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

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config GENERIC_CLOCKEVENTS_BROADCAST
	bool

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#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

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#
# Use the generic interrupt handling code in kernel/irq/:
#
config GENERIC_HARDIRQS
	bool
	default y

config GENERIC_IRQ_PROBE
	bool
	default y

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config IRQ_PER_CPU
	bool

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#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
#   caches such as R3000, SB1, R7000 or those that look like they're virtually
#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
#   moment we protect the user and offer the highmem option only on machines
#   where it's known to be safe.  This will not offer highmem on a few systems
#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
#   indexed CPUs but we're playing safe.
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# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
#   know they might have memory configurations that could make use of highmem
#   support.
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#
config HIGHMEM
	bool "High Memory Support"
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	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM

config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool
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config SYS_SUPPORTS_SMARTMIPS
	bool

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config ARCH_FLATMEM_ENABLE
	def_bool y
	depends on !NUMA

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config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
1730
	  Say Y to support efficient handling of discontiguous physical memory,
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	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
	  See <file:Documentation/vm/numa> for more.

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config ARCH_POPULATES_NODE_MAP
	def_bool y

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config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
1741

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config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems disable this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

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source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
1764
	depends on SYS_SUPPORTS_SMP
1765
	select IRQ_PER_CPU
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	help
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	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

	  If you say N here, the kernel will run on single and multiprocessor
	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
	  singleprocessor machines. On a singleprocessor machine, the kernel
	  will run faster if you say N here.

	  People using multiprocessor machines who say Y here should also say
	  Y to "Enhanced Real Time Clock Support", below.

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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	  If you don't know what to do here, say N.

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config SMP_UP
	bool

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config SYS_SUPPORTS_SMP
	bool

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config NR_CPUS_DEFAULT_1
	bool

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config NR_CPUS_DEFAULT_2
	bool

config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

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config NR_CPUS
	int "Maximum number of CPUs (2-64)"
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	range 1 64 if NR_CPUS_DEFAULT_1
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	depends on SMP
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	default "1" if NR_CPUS_DEFAULT_1
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	default "2" if NR_CPUS_DEFAULT_2
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
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	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
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	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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	  This is purely to save memory - each supported CPU adds
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	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
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config MIPS_CMP
	bool "MIPS CMP framework support"
	depends on SMP
	select SYNC_R4K
	select SYS_SUPPORTS_SCHED_SMT
	select WEAK_ORDERING
	default n
	help
	  This is a placeholder option for the GCMP work. It will need to
	  be handled differently...

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source "kernel/time/Kconfig"

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#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
	 Allows the configuration of the timer frequency.

	config HZ_48
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		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
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	config HZ_100
		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_128
		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_250
		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_256
		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1000
		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ

	config HZ_1024
		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ

endchoice

config SYS_SUPPORTS_48HZ
	bool

config SYS_SUPPORTS_100HZ
	bool

config SYS_SUPPORTS_128HZ
	bool

config SYS_SUPPORTS_250HZ
	bool

config SYS_SUPPORTS_256HZ
	bool

config SYS_SUPPORTS_1000HZ
	bool

config SYS_SUPPORTS_1024HZ
	bool

config SYS_SUPPORTS_ARBIT_HZ
	bool
	default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

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source "kernel/Kconfig.preempt"
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config MIPS_INSANE_LARGE
	bool "Support for large 64-bit configurations"
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	depends on CPU_R10000 && 64BIT
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	help
	  MIPS R10000 does support a 44 bit / 16TB address space as opposed to
	  previous 64-bit processors which only supported 40 bit / 1TB. If you
	  need processes of more than 1TB virtual address space, say Y here.
	  This will result in additional memory usage, so it is not
	  recommended for normal users.

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config KEXEC
	bool "Kexec system call (EXPERIMENTAL)"
	depends on EXPERIMENTAL
	help
	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
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	  but it is independent of the system firmware.   And like a reboot
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	  you can start any kernel with it, not just Linux.

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	  The name comes from the similarity to the exec system call.
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	  It is an ongoing process to be certain the hardware in a machine
	  is properly shutdown, so do not be surprised if this code does not
	  initially work for you.  It may help to enable device hotplugging
	  support.  As of this writing the exact hardware interface is
	  strongly in flux, so no good recommendation can be made.

config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
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	depends on PROC_FS
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	default y
	help
	  This kernel feature is useful for number crunching applications
	  that may need to compute untrusted bytecode during their
	  execution. By using pipes or other transports made available to
	  the process as file descriptors supporting the read/write
	  syscalls, it's possible to isolate those applications in
	  their own address space using seccomp. Once seccomp is
	  enabled via /proc/<pid>/seccomp, it cannot be disabled
	  and the task is only allowed to execute a few safe syscalls
	  defined by each seccomp mode.

	  If unsure, say Y. Only embedded should say N here.

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endmenu

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config RWSEM_GENERIC_SPINLOCK
	bool
	default y

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config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

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source "init/Kconfig"

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menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

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config HW_HAS_EISA
	bool
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config HW_HAS_PCI
	bool

config PCI
	bool "Support for PCI controller"
	depends on HW_HAS_PCI
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	select PCI_DOMAINS
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	help
	  Find out whether you have a PCI motherboard. PCI is the name of a
	  bus system, i.e. the way the CPU talks to the other stuff inside
	  your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
	  say Y, otherwise N.

config PCI_DOMAINS
	bool

source "drivers/pci/Kconfig"

#
# ISA support is now enabled via select.  Too many systems still have the one
# or other ISA chip on the board that users don't know about so don't expect
# users to choose the right thing ...
#
config ISA
	bool

config EISA
	bool "EISA support"
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	depends on HW_HAS_EISA
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	select ISA
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	select GENERIC_ISA_DMA
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	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

source "drivers/eisa/Kconfig"

config TC
	bool "TURBOchannel support"
	depends on MACH_DECSTATION
	help
	  TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  Documentation on writing device drivers for TurboChannel
	  is available at:
	  <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.

#config ACCESSBUS
#	bool "Access.Bus support"
#	depends on TC

config MMU
	bool
	default y

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config I8253
	bool

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config ZONE_DMA32
	bool

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source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

config BINFMT_IRIX
	bool "Include IRIX binary compatibility"
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	depends on CPU_BIG_ENDIAN && 32BIT && BROKEN
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config MIPS32_COMPAT
	bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
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	depends on 64BIT
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	help
	  Select this option if you want Linux/MIPS 32-bit binary
	  compatibility. Since all software available for Linux/MIPS is
	  currently 32-bit you should say Y here.

config COMPAT
	bool
	depends on MIPS32_COMPAT
	default y

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config SYSVIPC_COMPAT
	bool
	depends on COMPAT && SYSVIPC
	default y

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config MIPS32_O32
	bool "Kernel support for o32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run o32 binaries.  These are pure
	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
	  existing binaries are in this format.

	  If unsure, say Y.

config MIPS32_N32
	bool "Kernel support for n32 binaries"
	depends on MIPS32_COMPAT
	help
	  Select this option if you want to run n32 binaries.  These are
	  64-bit binaries using 32-bit quantities for addressing and certain
	  data that would normally be 64-bit.  They are used in special
	  cases.

	  If unsure, say N.

config BINFMT_ELF32
	bool
	default y if MIPS32_O32 || MIPS32_N32

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endmenu

menu "Power management options"

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config ARCH_SUSPEND_POSSIBLE
	def_bool y
	depends on !SMP

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source "kernel/power/Kconfig"
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endmenu

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source "net/Kconfig"

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source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"