Kconfig 62.2 KB
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config MIPS
	bool
	default y
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select HAVE_CONTEXT_TRACKING
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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_PERF_EVENTS
	select PERF_USE_VMALLOC
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_TRACEHOOK
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	select ARCH_HAVE_CUSTOM_GPIO_H
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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 HAVE_DEBUG_KMEMLEAK
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	select HAVE_SYSCALL_TRACEPOINTS
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	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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	select RTC_LIB if !MACH_LOONGSON
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	select GENERIC_ATOMIC64 if !64BIT
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	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
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	select HAVE_DMA_ATTRS
	select HAVE_DMA_API_DEBUG
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	select GENERIC_IRQ_PROBE
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	select GENERIC_IRQ_SHOW
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	select GENERIC_PCI_IOMAP
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	select HAVE_ARCH_JUMP_LABEL
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select IRQ_FORCED_THREADING
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	select HAVE_MEMBLOCK
	select HAVE_MEMBLOCK_NODE_MAP
	select ARCH_DISCARD_MEMBLOCK
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	select GENERIC_SMP_IDLE_THREAD
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	select BUILDTIME_EXTABLE_SORT
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	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
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	select HAVE_MOD_ARCH_SPECIFIC
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	select VIRT_TO_BUS
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	select MODULES_USE_ELF_REL if MODULES
	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select CLONE_BACKWARDS
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	select HAVE_DEBUG_STACKOVERFLOW
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menu "Machine selection"

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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
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
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	select ARCH_REQUIRE_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 VLYNQ
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	select HAVE_CLK
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	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
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	select HAVE_CLK
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	select CLKDEV_LOOKUP
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	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 ARCH_WANT_OPTIONAL_GPIOLIB
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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 FW_CFE
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	select HW_HAS_PCI
	select IRQ_CPU
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	select SYS_HAS_CPU_MIPS32_R1
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	select NO_EXCEPT_FILL
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_HAS_EARLY_PRINTK
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	help
	 Support for BCM47XX based boards

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config BCM63XX
	bool "Broadcom BCM63XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
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	select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
	select ARCH_REQUIRE_GPIOLIB
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	select HAVE_CLK
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	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
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	select EARLY_PRINTK_8250 if EARLY_PRINTK
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	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
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	select SYS_SUPPORTS_64BIT_KERNEL
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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 FW_ARC
	select FW_ARC32
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	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
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	select SYS_SUPPORTS_64BIT_KERNEL
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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
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select DMA_NONCOHERENT
	select IRQ_CPU
	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
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	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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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 MACH_LOONGSON1
	bool "Loongson 1 family of machines"
	select SYS_SUPPORTS_ZBOOT
	help
	  This enables support for the Loongson 1 based machines.

	  Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the ICT (Institute of Computing Technology) and the Chinese Academy
	  of Sciences.

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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 CSRC_GIC
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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_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
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	select SYS_HAS_CPU_MIPS64_R2
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	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_SEAD3
	bool "MIPS SEAD3 board"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
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	select CSRC_GIC
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	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select DMA_NONCOHERENT
	select IRQ_CPU
	select IRQ_GIC
	select MIPS_MSC
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_SMARTMIPS
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	select SYS_SUPPORTS_MICROMIPS
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	select USB_ARCH_HAS_EHCI
	select USB_EHCI_BIG_ENDIAN_DESC
	select USB_EHCI_BIG_ENDIAN_MMIO
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	select USE_OF
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	help
	  This enables support for the MIPS Technologies SEAD3 evaluation
	  board.

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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 PMC_MSP
	bool "PMC-Sierra MSP chipsets"
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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
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	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
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	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 RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
	select IRQ_CPU
	select USE_OF
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select HAVE_MACH_CLKDEV
	select CLKDEV_LOOKUP
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config SGI_IP22
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	bool "SGI IP22 (Indy/Indigo2)"
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	select FW_ARC
	select FW_ARC32
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	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 FW_ARC
	select FW_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
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	bool "SGI IP28 (Indigo2 R10k)"
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	select FW_ARC
	select FW_ARC64
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	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 FW_ARC
	select FW_ARC32
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	select BOOT_ELF32
538
	select CEVT_R4K
539
	select CSRC_R4K
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540 541
	select DMA_NONCOHERENT
	select HW_HAS_PCI
542
	select IRQ_CPU
L
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543 544
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
545 546 547
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
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548
	select SYS_HAS_CPU_NEVADA
549
	select SYS_SUPPORTS_64BIT_KERNEL
550 551
	select SYS_SUPPORTS_BIG_ENDIAN
	help
552
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
553

554 555
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
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556 557
	select BOOT_ELF32
	select DMA_COHERENT
558
	select SIBYTE_BCM1120
A
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559
	select SWAP_IO_SPACE
560
	select SYS_HAS_CPU_SB1
A
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561 562 563
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

564 565
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
566
	select BOOT_ELF32
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567
	select DMA_COHERENT
568
	select SIBYTE_BCM1120
569
	select SWAP_IO_SPACE
570
	select SYS_HAS_CPU_SB1
571
	select SYS_SUPPORTS_BIG_ENDIAN
572
	select SYS_SUPPORTS_LITTLE_ENDIAN
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573

574 575
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
576 577
	select BOOT_ELF32
	select DMA_COHERENT
578
	select SIBYTE_BCM1125
579
	select SWAP_IO_SPACE
580
	select SYS_HAS_CPU_SB1
581
	select SYS_SUPPORTS_BIG_ENDIAN
582
	select SYS_SUPPORTS_HIGHMEM
583
	select SYS_SUPPORTS_LITTLE_ENDIAN
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584

585
config SIBYTE_RHONE
586
	bool "Sibyte BCM91125E-Rhone"
587 588 589 590
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
591
	select SYS_HAS_CPU_SB1
592 593
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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594

595 596
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
597
	select BOOT_ELF32
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598
	select DMA_COHERENT
599
	select HAVE_PATA_PLATFORM
600
	select SIBYTE_SB1250
601
	select SWAP_IO_SPACE
602
	select SYS_HAS_CPU_SB1
603
	select SYS_SUPPORTS_BIG_ENDIAN
604
	select SYS_SUPPORTS_HIGHMEM
P
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605
	select SYS_SUPPORTS_LITTLE_ENDIAN
606
	select ZONE_DMA32 if 64BIT
P
Pete Popov 已提交
607

608 609
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
610 611
	select BOOT_ELF32
	select DMA_COHERENT
612
	select HAVE_PATA_PLATFORM
613 614
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
615
	select SYS_HAS_CPU_SB1
616 617 618
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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620 621
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
622 623 624 625
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
626
	select SYS_HAS_CPU_SB1
627 628
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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629

630 631
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
632 633
	select BOOT_ELF32
	select DMA_COHERENT
634 635
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
636
	select SWAP_IO_SPACE
637
	select SYS_HAS_CPU_SB1
638
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
640
	select SYS_SUPPORTS_LITTLE_ENDIAN
641
	select ZONE_DMA32 if 64BIT
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642

643 644
config SNI_RM
	bool "SNI RM200/300/400"
645 646
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
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647
	select FW_SNIPROM if CPU_BIG_ENDIAN
648
	select ARCH_MAY_HAVE_PC_FDC
L
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649
	select BOOT_ELF32
650
	select CEVT_R4K
651
	select CSRC_R4K
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652
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
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653 654
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
655
	select HAVE_PCSPKR_PLATFORM
656
	select HW_HAS_EISA
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657
	select HW_HAS_PCI
658
	select IRQ_CPU
659
	select I8253
L
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660 661
	select I8259
	select ISA
662
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
663
	select SYS_HAS_CPU_R4X00
664
	select SYS_HAS_CPU_R5000
665
	select SYS_HAS_CPU_R10000
666
	select R5000_CPU_SCACHE
667
	select SYS_HAS_EARLY_PRINTK
668
	select SYS_SUPPORTS_32BIT_KERNEL
669
	select SYS_SUPPORTS_64BIT_KERNEL
670
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_HIGHMEM
672
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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673
	help
674 675
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
Linus Torvalds 已提交
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	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

679 680
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
681

682 683
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
684

685 686 687 688 689 690 691 692 693 694 695 696
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
697
	select ARCH_REQUIRE_GPIOLIB
698 699 700 701
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

702 703
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
704 705 706 707 708
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
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709
	select EDAC_SUPPORT
710
	select SYS_SUPPORTS_HOTPLUG_CPU
711
	select SYS_HAS_EARLY_PRINTK
712
	select SYS_HAS_CPU_CAVIUM_OCTEON
713
	select SWAP_IO_SPACE
714
	select HW_HAS_PCI
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715
	select ZONE_DMA32
716 717
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
718
	select HOLES_IN_ZONE
719
	select ARCH_REQUIRE_GPIOLIB
720 721 722 723 724 725 726 727 728 729 730 731 732
	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.

733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750
config NLM_XLR_BOARD
	bool "Netlogic XLR/XLS based systems"
	select BOOT_ELF32
	select NLM_COMMON
	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
751
	select ZONE_DMA32 if 64BIT
752 753
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
754 755
	select USB_ARCH_HAS_OHCI if USB_SUPPORT
	select USB_ARCH_HAS_EHCI if USB_SUPPORT
756 757
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
758 759 760 761
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
	select HW_HAS_PCI
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select 64BIT_PHYS_ADDR
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select DMA_COHERENT
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
780
	select ZONE_DMA32 if 64BIT
781 782
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
783
	select USE_OF
784 785
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
786 787 788 789
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

790
endchoice
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791

R
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792
source "arch/mips/alchemy/Kconfig"
793
source "arch/mips/ath79/Kconfig"
794
source "arch/mips/bcm47xx/Kconfig"
795
source "arch/mips/bcm63xx/Kconfig"
796
source "arch/mips/jazz/Kconfig"
797
source "arch/mips/jz4740/Kconfig"
798
source "arch/mips/lantiq/Kconfig"
799
source "arch/mips/lasat/Kconfig"
R
Ralf Baechle 已提交
800
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
801
source "arch/mips/ralink/Kconfig"
802
source "arch/mips/sgi-ip27/Kconfig"
803
source "arch/mips/sibyte/Kconfig"
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Atsushi Nemoto 已提交
804
source "arch/mips/txx9/Kconfig"
805
source "arch/mips/vr41xx/Kconfig"
806
source "arch/mips/cavium-octeon/Kconfig"
807
source "arch/mips/loongson/Kconfig"
808
source "arch/mips/loongson1/Kconfig"
809
source "arch/mips/netlogic/Kconfig"
810

811 812
endmenu

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813 814 815 816 817 818 819
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

820 821 822 823 824 825 826 827
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

828 829 830 831
config GENERIC_HWEIGHT
	bool
	default y

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832 833 834 835
config GENERIC_CALIBRATE_DELAY
	bool
	default y

836
config SCHED_OMIT_FRAME_POINTER
837 838 839
	bool
	default y

L
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840 841 842
#
# Select some configuration options automatically based on user selections.
#
843
config FW_ARC
L
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844 845
	bool

846 847 848
config ARCH_MAY_HAVE_PC_FDC
	bool

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849 850 851
config BOOT_RAW
	bool

852 853 854
config CEVT_BCM1480
	bool

855 856 857
config CEVT_DS1287
	bool

858 859 860
config CEVT_GT641XX
	bool

861 862 863
config CEVT_R4K
	bool

864 865 866
config CEVT_GIC
	bool

867 868 869
config CEVT_SB1250
	bool

870 871 872
config CEVT_TXX9
	bool

873 874 875
config CSRC_BCM1480
	bool

876 877 878
config CSRC_IOASIC
	bool

879 880 881
config CSRC_R4K
	bool

S
Steven J. Hill 已提交
882 883 884
config CSRC_GIC
	bool

885 886 887
config CSRC_SB1250
	bool

888
config GPIO_TXX9
M
Michael Buesch 已提交
889
	select ARCH_REQUIRE_GPIOLIB
890 891
	bool

892
config FW_CFE
893 894
	bool

895 896 897
config ARCH_DMA_ADDR_T_64BIT
	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT

898
config DMA_COHERENT
L
Linus Torvalds 已提交
899 900
	bool

901 902
config DMA_NONCOHERENT
	bool
903
	select NEED_DMA_MAP_STATE
904

905
config NEED_DMA_MAP_STATE
L
Linus Torvalds 已提交
906 907
	bool

908
config SYS_HAS_EARLY_PRINTK
L
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909 910
	bool

911
config HOTPLUG_CPU
912
	bool "Support for hot-pluggable CPUs"
913
	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
914 915 916 917 918 919 920 921
	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
922 923
	bool

L
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924 925 926 927 928 929 930 931 932
config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

933 934 935
config MIPS_NILE4
	bool

936 937 938
config SYNC_R4K
	bool

939 940 941
config MIPS_MACHINE
	def_bool n

942 943 944
config NO_IOPORT
	def_bool n

945 946 947
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
948
	select ISA_DMA_API
949

950 951
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
952
	select GENERIC_ISA_DMA
953

954 955 956
config ISA_DMA_API
	bool

957 958 959
config HOLES_IN_ZONE
	bool

960
#
M
Masanari Iida 已提交
961
# Endianness selection.  Sufficiently obscure so many users don't know what to
962 963 964 965
# 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
M
Masanari Iida 已提交
966
	prompt "Endianness selection"
L
Linus Torvalds 已提交
967 968
	help
	  Some MIPS machines can be configured for either little or big endian
969
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
970
	  Linux distribution.  In general there is one preferred byteorder for a
971
	  particular system but some systems are just as commonly used in the
972
	  one or the other endianness.
973 974 975 976 977 978 979 980 981 982 983

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

endchoice

984 985 986
config EXPORT_UASM
	bool

987 988 989
config SYS_SUPPORTS_APM_EMULATION
	bool

990 991 992 993 994
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
995

996 997 998 999 1000
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1001 1002 1003
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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Linus Torvalds 已提交
1004 1005 1006 1007 1008 1009
config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

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1010 1011 1012 1013 1014 1015
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1016 1017 1018
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1019 1020 1021
config IRQ_GT641XX
	bool

1022 1023 1024
config IRQ_GIC
	bool

1025
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1026 1027
	bool

M
Marc St-Jean 已提交
1028 1029 1030
config NO_EXCEPT_FILL
	bool

1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
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

1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058
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 CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

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Linus Torvalds 已提交
1059 1060 1061
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1062 1063 1064
config SGI_HAS_INDYDOG
	bool

1065 1066 1067
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082
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

1083
config FW_ARC32
1084 1085
	bool

P
Paul Bolle 已提交
1086
config FW_SNIPROM
1087 1088
	bool

L
Linus Torvalds 已提交
1089 1090 1091 1092 1093
config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
1094
	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X
1095
	default "6" if MIPS_CPU_SCACHE
1096
	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
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1097 1098 1099 1100 1101 1102 1103
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1104
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1105 1106 1107

config ARC_MEMORY
	bool
1108
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
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1109 1110 1111 1112
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1113
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
Linus Torvalds 已提交
1114 1115
	default y

1116
config FW_ARC64
L
Linus Torvalds 已提交
1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1128 1129 1130 1131
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1132 1133 1134 1135
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1136
	  It has an internal FPGA northbridge, which is compatible to
1137 1138 1139 1140 1141 1142
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1143
	select ARCH_REQUIRE_GPIOLIB
1144 1145 1146 1147 1148 1149 1150 1151
	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.

1152 1153 1154 1155 1156 1157 1158 1159
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
	  release 2 instruction set.

1160 1161
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1162
	depends on SYS_HAS_CPU_MIPS32_R1
1163
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1165
	select CPU_SUPPORTS_HIGHMEM
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	help
1167
	  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"
1179
	depends on SYS_HAS_CPU_MIPS32_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1182
	select CPU_SUPPORTS_HIGHMEM
1183
	select HAVE_KVM
1184
	help
1185
	  Choose this option to build a kernel for release 2 or later of the
1186 1187 1188 1189 1190 1191 1192
	  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"
1193
	depends on SYS_HAS_CPU_MIPS64_R1
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	select CPU_HAS_PREFETCH
1195 1196
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1197
	select CPU_SUPPORTS_HIGHMEM
1198
	select CPU_SUPPORTS_HUGEPAGES
1199 1200 1201 1202 1203 1204
	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"
1212
	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
1216
	select CPU_SUPPORTS_HIGHMEM
1217
	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"
1227
	depends on SYS_HAS_CPU_R3000
1228
	select CPU_HAS_WB
1229
	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"
1241
	depends on SYS_HAS_CPU_TX39XX
1242
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1246
	depends on SYS_HAS_CPU_VR41XX
1247 1248
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1250
	  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"
1257
	depends on SYS_HAS_CPU_R4300
1258 1259
	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"
1265
	depends on SYS_HAS_CPU_R4X00
1266 1267
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1268
	select CPU_SUPPORTS_HUGEPAGES
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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"
1275
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1277 1278
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1279
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1283
	depends on SYS_HAS_CPU_R5000
1284 1285
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1286
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1292
	depends on SYS_HAS_CPU_R5432
1293 1294
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1295
	select CPU_SUPPORTS_HUGEPAGES
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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
1302
	select CPU_SUPPORTS_HUGEPAGES
1303 1304 1305 1306
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_R6000
	bool "R6000"
1309
	depends on SYS_HAS_CPU_R6000
1310
	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"
1317
	depends on SYS_HAS_CPU_NEVADA
1318 1319
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1320
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1326
	depends on SYS_HAS_CPU_R8000
1327
	select CPU_HAS_PREFETCH
1328
	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"
1335
	depends on SYS_HAS_CPU_R10000
1336
	select CPU_HAS_PREFETCH
1337 1338
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1340
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1346
	depends on SYS_HAS_CPU_RM7000
1347
	select CPU_HAS_PREFETCH
1348 1349
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1351
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1355
	depends on SYS_HAS_CPU_SB1
1356 1357
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1359
	select CPU_SUPPORTS_HUGEPAGES
1360
	select WEAK_ORDERING
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config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1364
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1365
	select ARCH_SPARSEMEM_ENABLE
1366 1367 1368 1369 1370 1371
	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
1372
	select CPU_SUPPORTS_HUGEPAGES
1373 1374
	select LIBFDT
	select USE_OF
1375
	select USB_EHCI_BIG_ENDIAN_MMIO
1376 1377 1378 1379 1380 1381
	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_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
	select CPU_BMIPS3300 if SYS_HAS_CPU_BMIPS3300
	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
	select CPU_SUPPORTS_32BIT_KERNEL
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1395
	select CPU_SUPPORTS_HIGHMEM
1396
	select CPU_HAS_PREFETCH
1397
	help
1398
	  Support for BMIPS3300/4350/4380 and BMIPS5000 processors.
1399

1400 1401 1402 1403 1404 1405
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
1406
	select CPU_SUPPORTS_HUGEPAGES
1407 1408 1409 1410
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1411 1412 1413 1414 1415 1416 1417 1418 1419 1420

config CPU_XLP
	bool "Netlogic XLP SoC"
	depends on SYS_HAS_CPU_XLP
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select CPU_HAS_PREFETCH
1421
	select CPU_MIPSR2
1422 1423
	help
	  Netlogic Microsystems XLP 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

1453 1454 1455 1456
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1457
	select HAVE_KERNEL_LZ4
1458
	select HAVE_KERNEL_LZMA
1459
	select HAVE_KERNEL_LZO
1460
	select HAVE_KERNEL_XZ
1461 1462 1463 1464 1465

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1466 1467 1468 1469 1470
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1471
	select CPU_SUPPORTS_HUGEPAGES
1472

1473 1474 1475 1476 1477 1478 1479 1480
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM

1481
config CPU_BMIPS3300
1482
	bool
1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1499

1500
config SYS_HAS_CPU_LOONGSON2E
1501 1502
	bool

1503 1504
config SYS_HAS_CPU_LOONGSON2F
	bool
1505 1506
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1507
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1508

1509 1510 1511
config SYS_HAS_CPU_LOONGSON1B
	bool

1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 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
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

1548 1549 1550
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_SB1
	bool

1569 1570 1571
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1572 1573 1574
config SYS_HAS_CPU_BMIPS
	bool

1575 1576
config SYS_HAS_CPU_BMIPS3300
	bool
1577
	select SYS_HAS_CPU_BMIPS
1578 1579 1580

config SYS_HAS_CPU_BMIPS4350
	bool
1581
	select SYS_HAS_CPU_BMIPS
1582 1583 1584

config SYS_HAS_CPU_BMIPS4380
	bool
1585
	select SYS_HAS_CPU_BMIPS
1586 1587 1588

config SYS_HAS_CPU_BMIPS5000
	bool
1589
	select SYS_HAS_CPU_BMIPS
1590

1591 1592 1593
config SYS_HAS_CPU_XLR
	bool

1594 1595 1596
config SYS_HAS_CPU_XLP
	bool

1597 1598 1599 1600
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1601 1602
config WEAK_ORDERING
	bool
1603 1604 1605 1606 1607 1608 1609

#
# 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
1610 1611 1612
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
1614 1615 1616 1617 1618 1619 1620 1621 1622 1623
#
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
1625 1626 1627 1628 1629 1630 1631
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1632
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
1633 1634 1635 1636 1637 1638 1639 1640 1641

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
1642 1643 1644 1645
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1646 1647
config CPU_SUPPORTS_HUGEPAGES
	bool
1648 1649
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1650 1651
config MIPS_PGD_C0_CONTEXT
	bool
1652
	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1653

1654 1655 1656 1657 1658
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1659
       default y if CPU_MIPSR1 || CPU_MIPSR2
1660

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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
	help
	  Select this option if you want to build a 64-bit kernel.

endchoice

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config KVM_GUEST
	bool "KVM Guest Kernel"
1687
	depends on BROKEN_ON_SMP
1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699
	help
	  Select this option if building a guest kernel for KVM (Trap & Emulate) mode

config KVM_HOST_FREQ
	int "KVM Host Processor Frequency (MHz)"
	depends on KVM_GUEST
	default 500
	help
	  Select this option if building a guest kernel for KVM to skip
	  RTC emulation when determining guest CPU Frequency.  Instead, the guest
	  processor frequency is automatically derived from the host frequency.

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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"
1715
	depends on 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
1719 1720
	  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"
1724
	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
1728 1729
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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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"
1742
	depends on !CPU_R3000 && !CPU_TX39XX
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	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
1747
	  writing this option is still high experimental.
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endchoice

1751 1752
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
1753 1754 1755 1756 1757 1758
	range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
	default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
	range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
	default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
	range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
	default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
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	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.

1775 1776 1777 1778 1779 1780 1781 1782 1783
config CEVT_GIC
	bool "Use GIC global counter for clock events"
	depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC)
	help
	  Use the GIC global counter for the clock events. The R4K clock
	  event driver is always present, so if the platform ends up not
	  detecting a GIC, it will fall back to the R4K timer for the
	  generation of clock events.

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config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

1791 1792 1793 1794 1795 1796 1797
#
# 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
1815
	bool
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1817 1818 1819 1820
config CPU_GENERIC_DUMP_TLB
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)

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config CPU_R4K_FPU
	bool
	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

1825 1826 1827 1828
config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

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choice
	prompt "MIPS MT options"
1831 1832 1833 1834 1835 1836 1837 1838

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"
1842
	depends on SYS_SUPPORTS_MULTITHREADING
1843
	select CPU_MIPSR2_IRQ_VI
1844
	select CPU_MIPSR2_IRQ_EI
1845
	select MIPS_MT
1846
	select SMP
1847
	select SYS_SUPPORTS_SCHED_SMT if SMP
1848
	select SYS_SUPPORTS_SMP
1849
	select SMP_UP
1850
	select MIPS_PERF_SHARED_TC_COUNTERS
1851
	help
1852 1853 1854 1855 1856 1857 1858 1859 1860 1861
	  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
1862

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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 ...
1867 1868
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
1869
	select CPU_MIPSR2_IRQ_EI
1870
	select MIPS_MT
1871
	select NR_CPUS_DEFAULT_8
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	select SMP
1873
	select SYS_SUPPORTS_SMP
1874
	select SMP_UP
1875
	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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	  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

1889 1890 1891
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

1904 1905 1906
config SYS_SUPPORTS_MULTITHREADING
	bool

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config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
1910 1911 1912 1913
	depends on MIPS_MT_SMP || MIPS_MT_SMTC

config MIPS_VPE_LOADER
	bool "VPE loader support."
1914
	depends on SYS_SUPPORTS_MULTITHREADING && MODULES
1915 1916 1917 1918 1919 1920
	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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1922 1923 1924
config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
1925
	default n
1926 1927 1928 1929 1930 1931
	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
1932
	  impact on interrupt service overhead.
1933

1934 1935 1936 1937 1938 1939 1940 1941
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
1942 1943
	  platform code.  Adds some overhead to interrupt dispatch, and
	  should be used only if you know what you are doing.
1944

1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956
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
1957 1958 1959
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
1960

1961 1962 1963
config MIPS_CMP
	bool "MIPS CMP framework support"
	depends on SYS_SUPPORTS_MIPS_CMP
1964
	select SMP
1965
	select SYNC_R4K
1966 1967 1968 1969 1970 1971 1972 1973
	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

1989

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config 64BIT_PHYS_ADDR
1991
	bool
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1993 1994 1995
config ARCH_PHYS_ADDR_T_64BIT
       def_bool 64BIT_PHYS_ADDR

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
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_MICROMIPS
	depends on SYS_SUPPORTS_MICROMIPS
	bool "Build kernel using microMIPS ISA"
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

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config CPU_HAS_WB
2016
	bool
2017

2018 2019 2020
config XKS01
	bool

2021 2022 2023
#
# Vectored interrupt mode is an R2 feature
#
2024
config CPU_MIPSR2_IRQ_VI
2025
	bool
2026

2027 2028 2029
#
# Extended interrupt mode is an R2 feature
#
2030
config CPU_MIPSR2_IRQ_EI
2031
	bool
2032

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050
#
# 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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2074 2075 2076
config SYS_SUPPORTS_SMARTMIPS
	bool

2077 2078 2079
config SYS_SUPPORTS_MICROMIPS
	bool

2080 2081
config ARCH_FLATMEM_ENABLE
	def_bool y
2082
	depends on !NUMA && !CPU_LOONGSON2
2083

2084 2085 2086 2087
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2088
	  Say Y to support efficient handling of discontiguous physical memory,
2089 2090 2091 2092
	  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.

2093 2094
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2096

2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109
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

2115 2116
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2117
	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2118 2119 2120 2121 2122
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2123 2124
source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
2127 2128
	depends on SYS_SUPPORTS_SMP
	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.

2147 2148 2149
config SMP_UP
	bool

2150 2151 2152
config SYS_SUPPORTS_MIPS_CMP
	bool

2153 2154 2155
config SYS_SUPPORTS_SMP
	bool

2156 2157 2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170
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)"
2173
	range 2 64
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	depends on SMP
2175 2176 2177 2178 2179
	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
2184 2185
	  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
2188 2189 2190
	  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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2192 2193 2194
config MIPS_PERF_SHARED_TC_COUNTERS
	bool

2195 2196 2197 2198 2199 2200 2201 2202 2203 2204 2205
#
# Timer Interrupt Frequency Configuration
#

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

	config HZ_48
2206
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
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 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265

	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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2268
config KEXEC
2269
	bool "Kexec system call"
2270 2271 2272
	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
2273
	  but it is independent of the system firmware.   And like a reboot
2274 2275
	  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.
2277 2278 2279

	  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
2280 2281 2282
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2283

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config CRASH_DUMP
	  bool "Kernel crash dumps"
	  help
	  Generate crash dump after being started by kexec.
	  This should be normally only set in special crash dump kernels
	  which are loaded in the main kernel with kexec-tools into
	  a specially reserved region and then later executed after
	  a crash by kdump/kexec. The crash dump kernel must be compiled
	  to a memory address not used by the main kernel or firmware using
	  PHYSICAL_START.

config PHYSICAL_START
	  hex "Physical address where the kernel is loaded"
	  default "0xffffffff84000000" if 64BIT
	  default "0x84000000" if 32BIT
	  depends on CRASH_DUMP
	  help
	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
	  If you plan to use kernel for capturing the crash dump change
	  this value to start of the reserved region (the "X" value as
	  specified in the "crashkernel=YM@XM" command line boot parameter
	  passed to the panic-ed kernel).

2307 2308
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2309
	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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config CC_STACKPROTECTOR
	bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
	help
	  This option turns on the -fstack-protector GCC feature. This
	  feature puts, at the beginning of functions, a canary value on
	  the stack just before the return address, and validates
	  the value just before actually returning.  Stack based buffer
	  overflows (that need to overwrite this return address) now also
	  overwrite the canary, which gets detected and the attack is then
	  neutralized via a kernel panic.

	  This feature requires gcc version 4.2 or above.

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config MIPS_O32_FP64_SUPPORT
	bool "Support for O32 binaries using 64-bit FP"
	depends on 32BIT || MIPS32_O32
	default y
	help
	  When this is enabled, the kernel will support use of 64-bit floating
	  point registers with binaries using the O32 ABI along with the
	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
	  32-bit MIPS systems this support is at the cost of increasing the
	  size and complexity of the compiled FPU emulator. Thus if you are
	  running a MIPS32 system and know that none of your userland binaries
	  will require 64-bit floating point, you may wish to reduce the size
	  of your kernel & potentially improve FP emulation performance by
	  saying N here.

	  If unsure, say Y.

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config USE_OF
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	bool
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	select OF
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	select OF_EARLY_FLATTREE
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	select IRQ_DOMAIN
2359

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endmenu

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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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source "kernel/Kconfig.freezer"

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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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	select NO_GENERIC_PCI_IOPORT_MAP
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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"

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source "drivers/pci/pcie/Kconfig"

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#
# 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
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	  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 MMU
	bool
	default y

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config I8253
	bool
2446
	select CLKSRC_I8253
2447
	select CLKEVT_I8253
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	select MIPS_EXTERNAL_TIMER
2449

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config ZONE_DMA
	bool

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config ZONE_DMA32
	bool

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source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

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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
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	select ARCH_WANT_OLD_COMPAT_IPC
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	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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config MIPS_EXTERNAL_TIMER
	bool

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
menu "CPU Power Management"
source "drivers/cpufreq/Kconfig"
endmenu
endif
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source "net/Kconfig"

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source "drivers/Kconfig"

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source "drivers/firmware/Kconfig"

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source "fs/Kconfig"

source "arch/mips/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"
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source "arch/mips/kvm/Kconfig"