Kconfig 58.4 KB
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config MIPS
	bool
	default y
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	select HAVE_GENERIC_DMA_COHERENT
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	select HAVE_IDE
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	select HAVE_OPROFILE
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	select HAVE_IRQ_WORK
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	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
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	select HAVE_ARCH_KGDB
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	select HAVE_FUNCTION_TRACER
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	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
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	select HAVE_DYNAMIC_FTRACE
	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_C_RECORDMCOUNT
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select RTC_LIB if !MACH_LOONGSON
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	select GENERIC_ATOMIC64 if !64BIT
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	select HAVE_DMA_ATTRS
	select HAVE_DMA_API_DEBUG
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	select HAVE_GENERIC_HARDIRQS
	select GENERIC_IRQ_PROBE
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	select GENERIC_IRQ_SHOW
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	select HAVE_ARCH_JUMP_LABEL
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	select IRQ_FORCED_THREADING
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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 MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select 64BIT_PHYS_ADDR
	select CEVT_R4K_LIB
	select CSRC_R4K_LIB
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
	select GENERIC_GPIO
	select ARCH_WANT_OPTIONAL_GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
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config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select NO_EXCEPT_FILL
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select ARCH_REQUIRE_GPIOLIB
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	select GCD
	select VLYNQ
	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

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config ATH79
	bool "Atheros AR71XX/AR724X/AR913X based boards"
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	select ARCH_REQUIRE_GPIOLIB
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	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
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	select MIPS_MACHINE
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	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	help
	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.

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config BCM47XX
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	bool "Broadcom 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_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	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 BCM63XX
	bool "Broadcom BCM63XX based boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
	select ARCH_REQUIRE_GPIOLIB
	help
	 Support for BCM63XX 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 PCI
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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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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 HAVE_PCSPKR_PLATFORM
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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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	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.
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	 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
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	 Olivetti M700-10 workstations.

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config MACH_JZ4740
	bool "Ingenic JZ4740 based machines"
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select DMA_NONCOHERENT
	select IRQ_CPU
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select SYS_HAS_EARLY_PRINTK
	select HAVE_PWM
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	select HAVE_CLK
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	select GENERIC_IRQ_CHIP
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
	select IRQ_CPU
	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_HAS_EARLY_PRINTK
	select ARCH_REQUIRE_GPIOLIB
	select SWAP_IO_SPACE
	select BOOT_RAW
	select HAVE_CLK
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	select MIPS_MACHINE
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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

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config MACH_LOONGSON
	bool "Loongson family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables the support of Loongson family of machines.

	  Loongson is a family of general-purpose MIPS-compatible CPUs.
	  developed at Institute of Computing Technology (ICT),
	  Chinese Academy of Sciences (CAS) in the People's Republic
	  of China. The chief architect is Professor Weiwu Hu.
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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 HAVE_PCSPKR_PLATFORM
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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_MIPS_CMP
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_SMARTMIPS
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the MIPS Technologies Malta evaluation
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	  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 NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
	select HW_HAS_PCI
	help
	  This enables support for the NEC Electronics Mark-eins boards.
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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 ARCH_REQUIRE_GPIOLIB
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config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
	 Support for NXP Semiconductors STB220 Development Board.

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
	 Support for NXP Semiconductors STB225 Development Board.

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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
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	select CEVT_R4K
	select CSRC_R4K
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	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 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_SMP
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	help
	  Yosemite is an evaluation board for the RM9000x2 processor
	  manufactured by PMC-Sierra.
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config POWERTV
	bool "Cisco PowerTV"
	select BOOT_ELF32
	select CEVT_R4K
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CSRC_POWERTV
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select USB_OHCI_LITTLE_ENDIAN
	help
	  This enables support for the Cisco PowerTV Platform.

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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_I8042
	select SGI_HAS_INDYDOG
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	select SGI_HAS_HAL2
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	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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	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# 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_COHERENT
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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_NUMA
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	select SYS_SUPPORTS_SMP
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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_I8042
	select SGI_HAS_INDYDOG
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	select SGI_HAS_HAL2
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	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
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	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# select SYS_HAS_EARLY_PRINTK
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	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
548
	select SIBYTE_BCM1120
549
	select SWAP_IO_SPACE
550
	select SYS_HAS_CPU_SB1
551
	select SYS_SUPPORTS_BIG_ENDIAN
552
	select SYS_SUPPORTS_LITTLE_ENDIAN
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554 555
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
556 557 558
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
559
	select SIBYTE_BCM1125
560
	select SWAP_IO_SPACE
561
	select SYS_HAS_CPU_SB1
562
	select SYS_SUPPORTS_BIG_ENDIAN
563
	select SYS_SUPPORTS_HIGHMEM
564
	select SYS_SUPPORTS_LITTLE_ENDIAN
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566
config SIBYTE_RHONE
567
	bool "Sibyte BCM91125E-Rhone"
568 569 570 571 572
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
573
	select SYS_HAS_CPU_SB1
574 575
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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577 578
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
579
	select BOOT_ELF32
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580
	select DMA_COHERENT
581
	select HAVE_PATA_PLATFORM
582 583
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
584
	select SWAP_IO_SPACE
585
	select SYS_HAS_CPU_SB1
586
	select SYS_SUPPORTS_BIG_ENDIAN
587
	select SYS_SUPPORTS_HIGHMEM
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588
	select SYS_SUPPORTS_LITTLE_ENDIAN
589
	select ZONE_DMA32 if 64BIT
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590

591 592
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
593 594 595
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
596
	select HAVE_PATA_PLATFORM
597
	select NR_CPUS_DEFAULT_2
598 599
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
600
	select SYS_HAS_CPU_SB1
601 602 603
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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605 606
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
607 608 609
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select DMA_COHERENT
610
	select NR_CPUS_DEFAULT_2
611 612
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
613
	select SYS_HAS_CPU_SB1
614 615
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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617 618
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
619 620
	select BOOT_ELF32
	select DMA_COHERENT
621 622
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
623
	select SWAP_IO_SPACE
624
	select SYS_HAS_CPU_SB1
625
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
627
	select SYS_SUPPORTS_LITTLE_ENDIAN
628
	select ZONE_DMA32 if 64BIT
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630 631
config SNI_RM
	bool "SNI RM200/300/400"
632 633
	select ARC if CPU_LITTLE_ENDIAN
	select ARC32 if CPU_LITTLE_ENDIAN
634
	select SNIPROM if CPU_BIG_ENDIAN
635
	select ARCH_MAY_HAVE_PC_FDC
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636
	select BOOT_ELF32
637
	select CEVT_R4K
638
	select CSRC_R4K
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639
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
642
	select HAVE_PCSPKR_PLATFORM
643
	select HW_HAS_EISA
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644
	select HW_HAS_PCI
645
	select IRQ_CPU
646
	select I8253
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647 648
	select I8259
	select ISA
649
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
650
	select SYS_HAS_CPU_R4X00
651
	select SYS_HAS_CPU_R5000
652
	select SYS_HAS_CPU_R10000
653
	select R5000_CPU_SCACHE
654
	select SYS_HAS_EARLY_PRINTK
655 656
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL
657
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
659
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	help
661 662
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
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	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

666 667
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
668

669 670
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
671

672 673 674 675 676 677 678 679 680 681 682 683
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	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 SWAP_IO_SPACE
	select BOOT_RAW
684
	select ARCH_REQUIRE_GPIOLIB
685 686 687 688
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

689 690
config WR_PPMC
	bool "Wind River PPMC board"
691
	select CEVT_R4K
692
	select CSRC_R4K
693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711
	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.

712
config CAVIUM_OCTEON_SIMULATOR
713
	bool "Cavium Networks Octeon Simulator"
714 715 716 717 718 719
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
720
	select SYS_SUPPORTS_HOTPLUG_CPU
721
	select SYS_HAS_CPU_CAVIUM_OCTEON
722
	select HOLES_IN_ZONE
723 724 725 726 727 728
	help
	  The Octeon simulator is software performance model of the Cavium
	  Octeon Processor. It supports simulating Octeon processors on x86
	  hardware.

config CAVIUM_OCTEON_REFERENCE_BOARD
729
	bool "Cavium Networks Octeon reference board"
730 731 732 733 734 735
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
736
	select SYS_SUPPORTS_HOTPLUG_CPU
737
	select SYS_HAS_EARLY_PRINTK
738
	select SYS_HAS_CPU_CAVIUM_OCTEON
739
	select SWAP_IO_SPACE
740 741
	select HW_HAS_PCI
	select ARCH_SUPPORTS_MSI
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	select ZONE_DMA32
743 744
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
745
	select HOLES_IN_ZONE
746 747 748 749 750 751 752 753 754 755 756 757 758
	help
	  This option supports all of the Octeon reference boards from Cavium
	  Networks. It builds a kernel that dynamically determines the Octeon
	  CPU type and supports all known board reference implementations.
	  Some of the supported boards are:
		EBT3000
		EBH3000
		EBH3100
		Thunder
		Kodama
		Hikari
	  Say Y here for most Octeon reference boards.

759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785
config NLM_XLR_BOARD
	bool "Netlogic XLR/XLS based systems"
	depends on EXPERIMENTAL
	select BOOT_ELF32
	select NLM_COMMON
	select NLM_XLR
	select SYS_HAS_CPU_XLR
	select SYS_SUPPORTS_SMP
	select HW_HAS_PCI
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select 64BIT_PHYS_ADDR
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select ZONE_DMA if 64BIT
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

786
endchoice
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787

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788
source "arch/mips/alchemy/Kconfig"
789
source "arch/mips/ath79/Kconfig"
790
source "arch/mips/bcm47xx/Kconfig"
791
source "arch/mips/bcm63xx/Kconfig"
792
source "arch/mips/jazz/Kconfig"
793
source "arch/mips/jz4740/Kconfig"
794
source "arch/mips/lantiq/Kconfig"
795
source "arch/mips/lasat/Kconfig"
796
source "arch/mips/pmc-sierra/Kconfig"
797
source "arch/mips/powertv/Kconfig"
798
source "arch/mips/sgi-ip27/Kconfig"
799
source "arch/mips/sibyte/Kconfig"
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source "arch/mips/txx9/Kconfig"
801
source "arch/mips/vr41xx/Kconfig"
802
source "arch/mips/cavium-octeon/Kconfig"
803
source "arch/mips/loongson/Kconfig"
804
source "arch/mips/netlogic/Kconfig"
805

806 807
endmenu

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config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

815 816 817 818 819 820 821 822
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

823 824 825 826
config GENERIC_HWEIGHT
	bool
	default y

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config GENERIC_CALIBRATE_DELAY
	bool
	default y

831 832 833 834
config GENERIC_CLOCKEVENTS
	bool
	default y

835 836 837 838
config GENERIC_CMOS_UPDATE
	bool
	default y

839
config SCHED_OMIT_FRAME_POINTER
840 841 842
	bool
	default y

L
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843 844 845 846 847 848
#
# Select some configuration options automatically based on user selections.
#
config ARC
	bool

849 850 851
config ARCH_MAY_HAVE_PC_FDC
	bool

M
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852 853 854
config BOOT_RAW
	bool

855 856 857
config CEVT_BCM1480
	bool

858 859 860
config CEVT_DS1287
	bool

861 862 863
config CEVT_GT641XX
	bool

864 865 866
config CEVT_R4K_LIB
	bool

867
config CEVT_R4K
868
	select CEVT_R4K_LIB
869 870
	bool

871 872 873
config CEVT_SB1250
	bool

874 875 876
config CEVT_TXX9
	bool

877 878 879
config CSRC_BCM1480
	bool

880 881 882
config CSRC_IOASIC
	bool

883 884 885
config CSRC_POWERTV
	bool

886 887 888
config CSRC_R4K_LIB
	bool

889
config CSRC_R4K
890
	select CSRC_R4K_LIB
891 892
	bool

893 894 895
config CSRC_SB1250
	bool

896 897
config GPIO_TXX9
	select GENERIC_GPIO
M
Michael Buesch 已提交
898
	select ARCH_REQUIRE_GPIOLIB
899 900
	bool

901 902 903
config CFE
	bool

904 905 906
config ARCH_DMA_ADDR_T_64BIT
	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT

907
config DMA_COHERENT
L
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908 909
	bool

910 911
config DMA_NONCOHERENT
	bool
912
	select NEED_DMA_MAP_STATE
913

914
config NEED_DMA_MAP_STATE
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Linus Torvalds 已提交
915 916
	bool

917
config SYS_HAS_EARLY_PRINTK
L
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918 919
	bool

920
config HOTPLUG_CPU
921 922 923 924 925 926 927 928 929 930
	bool "Support for hot-pluggable CPUs"
	depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Say Y here to allow turning CPUs off and on. CPUs can be
	  controlled through /sys/devices/system/cpu.
	  (Note: power management support will enable this option
	    automatically on SMP systems. )
	  Say N if you want to disable CPU hotplug.

config SYS_SUPPORTS_HOTPLUG_CPU
931 932
	bool

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933 934 935 936 937 938 939 940 941
config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

942 943 944
config MIPS_NILE4
	bool

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945 946 947
config MIPS_DISABLE_OBSOLETE_IDE
	bool

948 949 950
config SYNC_R4K
	bool

951 952 953
config MIPS_MACHINE
	def_bool n

954 955 956
config NO_IOPORT
	def_bool n

957 958 959
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
960
	select ISA_DMA_API
961

962 963
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
964
	select GENERIC_ISA_DMA
965

966 967 968
config ISA_DMA_API
	bool

Y
Yoichi Yuasa 已提交
969 970 971
config GENERIC_GPIO
	bool

972 973 974
config HOLES_IN_ZONE
	bool

975
#
M
Matt LaPlante 已提交
976
# Endianess selection.  Sufficiently obscure so many users don't know what to
977 978 979 980 981
# 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
984
	  byte order. These modes require different kernels and a different
M
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985
	  Linux distribution.  In general there is one preferred byteorder for a
986
	  particular system but some systems are just as commonly used in the
987
	  one or the other endianness.
988 989 990 991 992 993 994 995 996 997 998 999

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

1000 1001 1002
config EXPORT_UASM
	bool

1003 1004 1005
config SYS_SUPPORTS_APM_EMULATION
	bool

1006 1007 1008 1009 1010
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1011

1012 1013 1014 1015 1016
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

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1017 1018 1019 1020 1021 1022
config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

1023 1024 1025
config IRQ_CPU_RM9K
	bool

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1026 1027 1028 1029 1030 1031
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1032 1033 1034
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1035 1036 1037
config IRQ_GT641XX
	bool

1038 1039 1040
config IRQ_GIC
	bool

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1041 1042 1043
config MIPS_BOARDS_GEN
	bool

1044
config PCI_GT64XXX_PCI0
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1045 1046
	bool

M
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1047 1048 1049
config NO_EXCEPT_FILL
	bool

1050 1051 1052 1053
config MIPS_RM9122
	bool
	select SERIAL_RM9000

1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select GENERIC_GPIO
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1083 1084 1085 1086 1087 1088 1089 1090
config PNX8550
	bool
	select SOC_PNX8550

config SOC_PNX8550
	bool
	select DMA_NONCOHERENT
	select HW_HAS_PCI
1091
	select SYS_HAS_CPU_MIPS32_R1
1092
	select SYS_HAS_EARLY_PRINTK
1093
	select SYS_SUPPORTS_32BIT_KERNEL
1094
	select GENERIC_GPIO
1095

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Linus Torvalds 已提交
1096 1097 1098
config SWAP_IO_SPACE
	bool

1099 1100 1101
config SERIAL_RM9000
	bool

T
Thomas Bogendoerfer 已提交
1102 1103 1104
config SGI_HAS_INDYDOG
	bool

1105 1106 1107
config SGI_HAS_HAL2
	bool

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Thomas Bogendoerfer 已提交
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122
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

1123 1124 1125
config ARC32
	bool

1126 1127 1128
config SNIPROM
	bool

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1129 1130 1131 1132 1133
config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
1134
	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1135
	default "6" if MIPS_CPU_SCACHE
1136
	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
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	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1144
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1145 1146 1147

config ARC_MEMORY
	bool
1148
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
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1149 1150 1151 1152
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1153
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
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1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167
	default y

config ARC64
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1168 1169 1170 1171
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1172 1173 1174 1175
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
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	  It has an internal FPGA northbridge, which is compatible to
1177 1178 1179 1180 1181 1182
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1183 1184
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
1185 1186 1187 1188 1189 1190 1191 1192
	help
	  The Loongson 2F processor implements the MIPS III instruction set
	  with many extensions.

	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
	  have a similar programming interface with FPGA northbridge used in
	  Loongson2E.

1193 1194
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1195
	depends on SYS_HAS_CPU_MIPS32_R1
1196
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1198
	select CPU_SUPPORTS_HIGHMEM
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	help
1200
	  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"
1212
	depends on SYS_HAS_CPU_MIPS32_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1215
	select CPU_SUPPORTS_HIGHMEM
1216
	help
1217
	  Choose this option to build a kernel for release 2 or later of the
1218 1219 1220 1221 1222 1223 1224
	  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"
1225
	depends on SYS_HAS_CPU_MIPS64_R1
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	select CPU_HAS_PREFETCH
1227 1228
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1229
	select CPU_SUPPORTS_HIGHMEM
1230
	select CPU_SUPPORTS_HUGEPAGES
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	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"
1244
	depends on SYS_HAS_CPU_MIPS64_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1248
	select CPU_SUPPORTS_HIGHMEM
1249
	select CPU_SUPPORTS_HUGEPAGES
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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"
1259
	depends on SYS_HAS_CPU_R3000
1260
	select CPU_HAS_WB
1261
	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"
1273
	depends on SYS_HAS_CPU_TX39XX
1274
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1278
	depends on SYS_HAS_CPU_VR41XX
1279 1280
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1282
	  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"
1289
	depends on SYS_HAS_CPU_R4300
1290 1291
	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"
1297
	depends on SYS_HAS_CPU_R4X00
1298 1299
	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"
1306
	depends on SYS_HAS_CPU_TX49XX
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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"
1313
	depends on SYS_HAS_CPU_R5000
1314 1315
	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"
1321
	depends on SYS_HAS_CPU_R5432
1322 1323
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1330
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_R6000
	bool "R6000"
1337
	depends on EXPERIMENTAL
1338
	depends on SYS_HAS_CPU_R6000
1339
	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"
1346
	depends on SYS_HAS_CPU_NEVADA
1347 1348
	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"
1354
	depends on EXPERIMENTAL
1355
	depends on SYS_HAS_CPU_R8000
1356
	select CPU_HAS_PREFETCH
1357
	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"
1364
	depends on SYS_HAS_CPU_R10000
1365
	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"
1374
	depends on SYS_HAS_CPU_RM7000
1375
	select CPU_HAS_PREFETCH
1376 1377
	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"
1382
	depends on SYS_HAS_CPU_RM9000
1383
	select CPU_HAS_PREFETCH
1384 1385
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1387
	select WEAK_ORDERING
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config CPU_SB1
	bool "SB1"
1391
	depends on SYS_HAS_CPU_SB1
1392 1393
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1395
	select WEAK_ORDERING
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config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1399
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
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	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_16
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1406
	select CPU_SUPPORTS_HUGEPAGES
1407 1408 1409 1410 1411 1412
	help
	  The Cavium Octeon processor is a highly integrated chip containing
	  many ethernet hardware widgets for networking tasks. The processor
	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
	  Full details can be found at http://www.caviumnetworks.com.

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config CPU_BMIPS3300
	bool "BMIPS3300"
	depends on SYS_HAS_CPU_BMIPS3300
1416
	select CPU_BMIPS
1417 1418 1419 1420 1421 1422
	help
	  Broadcom BMIPS3300 processors.

config CPU_BMIPS4350
	bool "BMIPS4350"
	depends on SYS_HAS_CPU_BMIPS4350
1423
	select CPU_BMIPS
1424 1425 1426 1427 1428 1429 1430 1431
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS4350 ("VIPER") processors.

config CPU_BMIPS4380
	bool "BMIPS4380"
	depends on SYS_HAS_CPU_BMIPS4380
1432
	select CPU_BMIPS
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	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS4380 processors.

config CPU_BMIPS5000
	bool "BMIPS5000"
	depends on SYS_HAS_CPU_BMIPS5000
1441
	select CPU_BMIPS
1442
	select CPU_SUPPORTS_HIGHMEM
1443
	select MIPS_CPU_SCACHE
1444 1445 1446 1447 1448
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS5000 processors.

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config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select CPU_SUPPORTS_HUGEPAGES
	help
	  Netlogic Microsystems XLR/XLS processors.
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endchoice

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if CPU_LOONGSON2F
config CPU_NOP_WORKAROUNDS
	bool

config CPU_JUMP_WORKAROUNDS
	bool

config CPU_LOONGSON2F_WORKAROUNDS
	bool "Loongson 2F Workarounds"
	default y
	select CPU_NOP_WORKAROUNDS
	select CPU_JUMP_WORKAROUNDS
	help
	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
	  require workarounds.  Without workarounds the system may hang
	  unexpectedly.  For more information please refer to the gas
	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.

	  Loongson 2F03 and later have fixed these issues and no workarounds
	  are needed.  The workarounds have no significant side effect on them
	  but may decrease the performance of the system so this option should
	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
	  systems.

	  If unsure, please say Y.
endif # CPU_LOONGSON2F

1489 1490 1491 1492 1493
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
1494
	select HAVE_KERNEL_LZO
1495 1496 1497 1498 1499

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1500 1501 1502 1503 1504 1505
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM

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config CPU_BMIPS
	bool
	select CPU_MIPS32
	select CPU_SUPPORTS_32BIT_KERNEL
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select WEAK_ORDERING

1515
config SYS_HAS_CPU_LOONGSON2E
1516 1517
	bool

1518 1519
config SYS_HAS_CPU_LOONGSON2F
	bool
1520 1521
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1522
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1523

1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559
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

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config SYS_HAS_CPU_R5500
	bool

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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

1584 1585 1586
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

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config SYS_HAS_CPU_BMIPS3300
	bool

config SYS_HAS_CPU_BMIPS4350
	bool

config SYS_HAS_CPU_BMIPS4380
	bool

config SYS_HAS_CPU_BMIPS5000
	bool

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config SYS_HAS_CPU_XLR
	bool

1602 1603 1604 1605
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1606 1607
config WEAK_ORDERING
	bool
1608 1609 1610 1611 1612 1613 1614

#
# 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
1615 1616 1617
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
#
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
1630 1631 1632 1633 1634 1635 1636
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1637
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1638 1639 1640 1641 1642 1643 1644 1645 1646

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
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config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1651 1652
config CPU_SUPPORTS_HUGEPAGES
	bool
1653 1654
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1655 1656 1657
config MIPS_PGD_C0_CONTEXT
	bool
	default y if 64BIT && CPU_MIPSR2
1658

1659 1660 1661 1662 1663
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1664
       default y if CPU_MIPSR1 || CPU_MIPSR2
1665

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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
1686
	select HAVE_SYSCALL_WRAPPERS
1687 1688 1689 1690 1691
	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"
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	depends on !CPU_LOONGSON2
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	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"
1707
	depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON
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	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
1711 1712
	  only on R8000 and cnMIPS processors.  Note that you will need a
	  suitable Linux distribution to support this.
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config PAGE_SIZE_16KB
	bool "16kB"
1716
	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
1720 1721
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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1723 1724 1725 1726 1727 1728 1729 1730 1731
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
	help
	  Using 32kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on cnMIPS cores.  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
1739
	  writing this option is still high experimental.
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endchoice

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config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
	range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
	default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB
	range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
	default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB
	range 11 64
	default "11"
	help
	  The kernel memory allocator divides physically contiguous memory
	  blocks into "zones", where each zone is a power of two number of
	  pages.  This option selects the largest power of two that the kernel
	  keeps in the memory allocator.  If you need to allocate very large
	  blocks of physically contiguous memory, then you may need to
	  increase this value.

	  This config option is actually maximum order plus one. For example,
	  a value of 11 means that the largest free memory block is 2^10 pages.

	  The page size is not necessarily 4KB.  Keep this in mind
	  when choosing a value for this option.

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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
1796
	bool
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choice
	prompt "MIPS MT options"
1800 1801 1802 1803 1804 1805 1806 1807

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"
1811
	depends on SYS_SUPPORTS_MULTITHREADING
1812
	select CPU_MIPSR2_IRQ_VI
1813
	select CPU_MIPSR2_IRQ_EI
1814
	select MIPS_MT
1815
	select NR_CPUS_DEFAULT_2
1816
	select SMP
1817
	select SYS_SUPPORTS_SCHED_SMT if SMP
1818
	select SYS_SUPPORTS_SMP
1819
	select SMP_UP
1820
	help
1821 1822 1823 1824 1825 1826 1827 1828 1829 1830
	  This is a kernel model which is known a VSMP but lately has been
	  marketesed into SMVP.
	  Virtual SMP uses the processor's VPEs  to implement virtual
	  processors. In currently available configuration of the 34K processor
	  this allows for a dual processor. Both processors will share the same
	  primary caches; each will obtain the half of the TLB for it's own
	  exclusive use. For a layman this model can be described as similar to
	  what Intel calls Hyperthreading.

	  For further information see http://www.linux-mips.org/wiki/34K#VSMP
1831

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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 ...
1836 1837
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
1838
	select CPU_MIPSR2_IRQ_EI
1839
	select MIPS_MT
1840
	select NR_CPUS_DEFAULT_8
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	select SMP
1842
	select SYS_SUPPORTS_SMP
1843
	select SMP_UP
1844
	help
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	  This is a kernel model which is known a SMTC or lately has been
	  marketesed into SMVP.
1847 1848 1849 1850 1851 1852 1853 1854
	  is presenting the available TC's of the core as processors to Linux.
	  On currently available 34K processors this means a Linux system will
	  see up to 5 processors. The implementation of the SMTC kernel differs
	  significantly from VSMP and cannot efficiently coexist in the same
	  kernel binary so the choice between VSMP and SMTC is a compile time
	  decision.

	  For further information see http://www.linux-mips.org/wiki/34K#SMTC
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endchoice

1858 1859 1860
config MIPS_MT
	bool

1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873
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


1874 1875 1876
config SYS_SUPPORTS_MULTITHREADING
	bool

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config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890
	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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1892 1893 1894
config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
1895
	default n
1896 1897 1898 1899 1900 1901
	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
1902
	  impact on interrupt service overhead.
1903

1904 1905 1906 1907 1908 1909 1910 1911
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
1912 1913
	  platform code.  Adds some overhead to interrupt dispatch, and
	  should be used only if you know what you are doing.
1914

1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926
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
1927 1928 1929
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
1930

1931 1932 1933 1934 1935 1936 1937 1938 1939 1940
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.

1941 1942 1943
config MIPS_CMP
	bool "MIPS CMP framework support"
	depends on SYS_SUPPORTS_MIPS_CMP
1944
	select SYNC_R4K
1945 1946 1947 1948 1949 1950 1951 1952
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT if SMP
	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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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
1969
	bool
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1971 1972 1973
config ARCH_PHYS_ADDR_T_64BIT
       def_bool 64BIT_PHYS_ADDR

1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985
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
1987
	bool
1988

1989 1990 1991
#
# Vectored interrupt mode is an R2 feature
#
1992
config CPU_MIPSR2_IRQ_VI
1993
	bool
1994

1995 1996 1997
#
# Extended interrupt mode is an R2 feature
#
1998
config CPU_MIPSR2_IRQ_EI
1999
	bool
2000

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

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config GENERIC_CLOCKEVENTS_BROADCAST
	bool

2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021
#
# 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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#
# - 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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2045 2046 2047
config SYS_SUPPORTS_SMARTMIPS
	bool

2048 2049
config ARCH_FLATMEM_ENABLE
	def_bool y
2050
	depends on !NUMA && !CPU_LOONGSON2
2051

2052 2053 2054 2055
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2056
	  Say Y to support efficient handling of discontiguous physical memory,
2057 2058 2059 2060
	  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.

2061 2062 2063
config ARCH_POPULATES_NODE_MAP
	def_bool y

2064 2065
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2067

2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080
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

2086 2087
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2088
	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON)
2089 2090 2091 2092 2093
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2094 2095
source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
2098
	depends on SYS_SUPPORTS_SMP
2099
	select IRQ_PER_CPU
2100
	select USE_GENERIC_SMP_HELPERS
2101
	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.

2120 2121 2122
config SMP_UP
	bool

2123 2124 2125
config SYS_SUPPORTS_MIPS_CMP
	bool

2126 2127 2128
config SYS_SUPPORTS_SMP
	bool

2129 2130 2131
config NR_CPUS_DEFAULT_1
	bool

2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149
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)"
2152
	range 1 64 if NR_CPUS_DEFAULT_1
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	depends on SMP
2154
	default "1" if NR_CPUS_DEFAULT_1
2155 2156 2157 2158 2159 2160
	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
2165 2166
	  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
2169 2170 2171
	  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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2173 2174
source "kernel/time/Kconfig"

2175 2176 2177 2178 2179 2180 2181 2182 2183 2184 2185
#
# Timer Interrupt Frequency Configuration
#

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

	config HZ_48
2186
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205 2206 2207 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245

	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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2248 2249 2250 2251 2252 2253
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
2254
	  but it is independent of the system firmware.   And like a reboot
2255 2256
	  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.
2258 2259 2260 2261 2262 2263 2264 2265 2266

	  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"
2267
	depends on PROC_FS
2268 2269 2270 2271 2272 2273 2274 2275 2276 2277 2278 2279 2280 2281
	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.

2282 2283 2284
config USE_OF
	bool "Flattened Device Tree support"
	select OF
2285
	select OF_EARLY_FLATTREE
2286 2287 2288
	help
	  Include support for flattened device tree machine descriptions.

2289 2290
endmenu

2291 2292 2293 2294 2295 2296 2297 2298
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

2299 2300
source "init/Kconfig"

2301 2302
source "kernel/Kconfig.freezer"

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

2305 2306
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
2313
	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"
2335
	depends on HW_HAS_EISA
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	select ISA
2337
	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
2357 2358 2359 2360 2361 2362 2363 2364
	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  TURBOchannel programming specifications are available
	  at:
	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
	  and:
	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
	  Linux driver support status is documented at:
	  <http://www.linux-mips.org/wiki/DECstation>
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#config ACCESSBUS
#	bool "Access.Bus support"
#	depends on TC

config MMU
	bool
	default y

2374 2375
config I8253
	bool
2376
	select CLKSRC_I8253
2377
	select CLKEVT_I8253
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	select MIPS_EXTERNAL_TIMER
2379

2380 2381 2382
config ZONE_DMA32
	bool

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source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

2387 2388 2389 2390 2391 2392 2393 2394 2395 2396
config RAPIDIO
	bool "RapidIO support"
	depends on PCI
	default n
	help
	  If you say Y here, the kernel will include drivers and
	  infrastructure code to support RapidIO interconnect devices.

source "drivers/rapidio/Kconfig"

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endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

config TRAD_SIGNALS
	bool

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_HIBERNATION_POSSIBLE
	def_bool y
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	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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config ARCH_SUSPEND_POSSIBLE
	def_bool y
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	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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source "kernel/power/Kconfig"
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endmenu

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source "arch/mips/kernel/cpufreq/Kconfig"

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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"