Kconfig 61.1 KB
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config MIPS
	bool
	default y
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	select HAVE_GENERIC_DMA_COHERENT
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	select HAVE_IDE
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	select HAVE_OPROFILE
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	select HAVE_PERF_EVENTS
	select PERF_USE_VMALLOC
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	select HAVE_ARCH_KGDB
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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 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 HAVE_GENERIC_HARDIRQS
	select GENERIC_IRQ_PROBE
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	select GENERIC_IRQ_SHOW
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	select HAVE_ARCH_JUMP_LABEL
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	select 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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menu "Machine selection"

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config ZONE_DMA
	bool

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choice
	prompt "System type"
	default SGI_IP22
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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select 64BIT_PHYS_ADDR
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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
	select GENERIC_GPIO
	select ARCH_WANT_OPTIONAL_GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
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config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select NO_EXCEPT_FILL
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select ARCH_REQUIRE_GPIOLIB
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	select 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 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 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"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
	select ARCH_REQUIRE_GPIOLIB
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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
	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 GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
	select SYS_HAS_EARLY_PRINTK
	select HAVE_PWM
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	select HAVE_CLK
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	select GENERIC_IRQ_CHIP
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
	select IRQ_CPU
	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_HAS_EARLY_PRINTK
	select ARCH_REQUIRE_GPIOLIB
	select SWAP_IO_SPACE
	select BOOT_RAW
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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
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select DMA_NONCOHERENT
	select IRQ_CPU
	select IRQ_GIC
	select MIPS_CPU_SCACHE
	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
	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
	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 POWERTV
	bool "Cisco PowerTV"
	select BOOT_ELF32
	select CEVT_R4K
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CSRC_POWERTV
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select USB_OHCI_LITTLE_ENDIAN
	help
	  This enables support for the Cisco PowerTV Platform.

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config 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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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
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select HW_HAS_PCI
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	select IRQ_CPU
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551 552
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
553 554 555
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
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556
	select SYS_HAS_CPU_NEVADA
557
	select SYS_SUPPORTS_64BIT_KERNEL
558 559
	select SYS_SUPPORTS_BIG_ENDIAN
	help
560
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
561

562 563
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
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564 565
	select BOOT_ELF32
	select DMA_COHERENT
566
	select SIBYTE_BCM1120
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567
	select SWAP_IO_SPACE
568
	select SYS_HAS_CPU_SB1
A
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569 570 571
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

572 573
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
574
	select BOOT_ELF32
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575
	select DMA_COHERENT
576
	select SIBYTE_BCM1120
577
	select SWAP_IO_SPACE
578
	select SYS_HAS_CPU_SB1
579
	select SYS_SUPPORTS_BIG_ENDIAN
580
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
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581

582 583
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
584 585
	select BOOT_ELF32
	select DMA_COHERENT
586
	select SIBYTE_BCM1125
587
	select SWAP_IO_SPACE
588
	select SYS_HAS_CPU_SB1
589
	select SYS_SUPPORTS_BIG_ENDIAN
590
	select SYS_SUPPORTS_HIGHMEM
591
	select SYS_SUPPORTS_LITTLE_ENDIAN
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592

593
config SIBYTE_RHONE
594
	bool "Sibyte BCM91125E-Rhone"
595 596 597 598
	select BOOT_ELF32
	select DMA_COHERENT
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
599
	select SYS_HAS_CPU_SB1
600 601
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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602

603 604
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
605
	select BOOT_ELF32
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606
	select DMA_COHERENT
607
	select HAVE_PATA_PLATFORM
608 609
	select NR_CPUS_DEFAULT_2
	select SIBYTE_SB1250
610
	select SWAP_IO_SPACE
611
	select SYS_HAS_CPU_SB1
612
	select SYS_SUPPORTS_BIG_ENDIAN
613
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
614
	select SYS_SUPPORTS_LITTLE_ENDIAN
615
	select ZONE_DMA32 if 64BIT
P
Pete Popov 已提交
616

617 618
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
619 620
	select BOOT_ELF32
	select DMA_COHERENT
621
	select HAVE_PATA_PLATFORM
622
	select NR_CPUS_DEFAULT_2
623 624
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
625
	select SYS_HAS_CPU_SB1
626 627 628
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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629

630 631
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
632 633
	select BOOT_ELF32
	select DMA_COHERENT
634
	select NR_CPUS_DEFAULT_2
635 636
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
637
	select SYS_HAS_CPU_SB1
638 639
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
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641 642
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
643 644
	select BOOT_ELF32
	select DMA_COHERENT
645 646
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
647
	select SWAP_IO_SPACE
648
	select SYS_HAS_CPU_SB1
649
	select SYS_SUPPORTS_BIG_ENDIAN
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650
	select SYS_SUPPORTS_HIGHMEM
651
	select SYS_SUPPORTS_LITTLE_ENDIAN
652
	select ZONE_DMA32 if 64BIT
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653

654 655
config SNI_RM
	bool "SNI RM200/300/400"
656 657
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
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658
	select FW_SNIPROM if CPU_BIG_ENDIAN
659
	select ARCH_MAY_HAVE_PC_FDC
L
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660
	select BOOT_ELF32
661
	select CEVT_R4K
662
	select CSRC_R4K
T
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663
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
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664 665
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
666
	select HAVE_PCSPKR_PLATFORM
667
	select HW_HAS_EISA
L
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668
	select HW_HAS_PCI
669
	select IRQ_CPU
670
	select I8253
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671 672
	select I8259
	select ISA
673
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
674
	select SYS_HAS_CPU_R4X00
675
	select SYS_HAS_CPU_R5000
676
	select SYS_HAS_CPU_R10000
677
	select R5000_CPU_SCACHE
678
	select SYS_HAS_EARLY_PRINTK
679
	select SYS_SUPPORTS_32BIT_KERNEL
680
	select SYS_SUPPORTS_64BIT_KERNEL
681
	select SYS_SUPPORTS_BIG_ENDIAN
R
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682
	select SYS_SUPPORTS_HIGHMEM
683
	select SYS_SUPPORTS_LITTLE_ENDIAN
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684
	help
685 686
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
L
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	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

690 691
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
692

693 694
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
695

696 697 698 699 700 701 702 703 704 705 706 707
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
708
	select ARCH_REQUIRE_GPIOLIB
709 710 711 712
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

713 714
config WR_PPMC
	bool "Wind River PPMC board"
715
	select CEVT_R4K
716
	select CSRC_R4K
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735
	select IRQ_CPU
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select HW_HAS_PCI
	select PCI_GT64XXX_PCI0
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  This enables support for the Wind River MIPS32 4KC PPMC evaluation
	  board, which is based on GT64120 bridge chip.

736
config CAVIUM_OCTEON_SIMULATOR
737
	bool "Cavium Networks Octeon Simulator"
738 739 740 741 742
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
743
	select SYS_SUPPORTS_HOTPLUG_CPU
744
	select SYS_HAS_CPU_CAVIUM_OCTEON
745
	select HOLES_IN_ZONE
746 747 748 749 750 751
	help
	  The Octeon simulator is software performance model of the Cavium
	  Octeon Processor. It supports simulating Octeon processors on x86
	  hardware.

config CAVIUM_OCTEON_REFERENCE_BOARD
752
	bool "Cavium Networks Octeon reference board"
753 754 755 756 757
	select CEVT_R4K
	select 64BIT_PHYS_ADDR
	select DMA_COHERENT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
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758
	select EDAC_SUPPORT
759
	select SYS_SUPPORTS_HOTPLUG_CPU
760
	select SYS_HAS_EARLY_PRINTK
761
	select SYS_HAS_CPU_CAVIUM_OCTEON
762
	select SWAP_IO_SPACE
763 764
	select HW_HAS_PCI
	select ARCH_SUPPORTS_MSI
D
David Daney 已提交
765
	select ZONE_DMA32
766 767
	select USB_ARCH_HAS_OHCI
	select USB_ARCH_HAS_EHCI
768
	select HOLES_IN_ZONE
769 770 771 772 773 774 775 776 777 778 779 780 781
	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.

782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799
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
800
	select ARCH_SUPPORTS_MSI
801
	select ZONE_DMA32 if 64BIT
802 803
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
804 805
	select USB_ARCH_HAS_OHCI if USB_SUPPORT
	select USB_ARCH_HAS_EHCI if USB_SUPPORT
806 807 808 809
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827
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
828
	select ZONE_DMA32 if 64BIT
829 830
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
831
	select USE_OF
832 833 834 835
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

836
endchoice
L
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837

R
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838
source "arch/mips/alchemy/Kconfig"
839
source "arch/mips/ath79/Kconfig"
840
source "arch/mips/bcm47xx/Kconfig"
841
source "arch/mips/bcm63xx/Kconfig"
842
source "arch/mips/jazz/Kconfig"
843
source "arch/mips/jz4740/Kconfig"
844
source "arch/mips/lantiq/Kconfig"
845
source "arch/mips/lasat/Kconfig"
R
Ralf Baechle 已提交
846
source "arch/mips/pmcs-msp71xx/Kconfig"
847
source "arch/mips/powertv/Kconfig"
J
John Crispin 已提交
848
source "arch/mips/ralink/Kconfig"
849
source "arch/mips/sgi-ip27/Kconfig"
850
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
851
source "arch/mips/txx9/Kconfig"
852
source "arch/mips/vr41xx/Kconfig"
853
source "arch/mips/cavium-octeon/Kconfig"
854
source "arch/mips/loongson/Kconfig"
855
source "arch/mips/loongson1/Kconfig"
856
source "arch/mips/netlogic/Kconfig"
857

858 859
endmenu

L
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860 861 862 863 864 865 866
config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

867 868 869 870 871 872 873 874
config ARCH_HAS_ILOG2_U32
	bool
	default n

config ARCH_HAS_ILOG2_U64
	bool
	default n

875 876 877 878
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
879 880 881 882
config GENERIC_CALIBRATE_DELAY
	bool
	default y

883
config SCHED_OMIT_FRAME_POINTER
884 885 886
	bool
	default y

L
Linus Torvalds 已提交
887 888 889
#
# Select some configuration options automatically based on user selections.
#
890
config FW_ARC
L
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891 892
	bool

893 894 895
config ARCH_MAY_HAVE_PC_FDC
	bool

M
Marc St-Jean 已提交
896 897 898
config BOOT_RAW
	bool

899 900 901
config CEVT_BCM1480
	bool

902 903 904
config CEVT_DS1287
	bool

905 906 907
config CEVT_GT641XX
	bool

908 909 910
config CEVT_R4K
	bool

911 912 913
config CEVT_SB1250
	bool

914 915 916
config CEVT_TXX9
	bool

917 918 919
config CSRC_BCM1480
	bool

920 921 922
config CSRC_IOASIC
	bool

923 924 925
config CSRC_POWERTV
	bool

926 927 928
config CSRC_R4K
	bool

S
Steven J. Hill 已提交
929 930 931
config CSRC_GIC
	bool

932 933 934
config CSRC_SB1250
	bool

935 936
config GPIO_TXX9
	select GENERIC_GPIO
M
Michael Buesch 已提交
937
	select ARCH_REQUIRE_GPIOLIB
938 939
	bool

940
config FW_CFE
941 942
	bool

943 944 945
config ARCH_DMA_ADDR_T_64BIT
	def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT

946
config DMA_COHERENT
L
Linus Torvalds 已提交
947 948
	bool

949 950
config DMA_NONCOHERENT
	bool
951
	select NEED_DMA_MAP_STATE
952

953
config NEED_DMA_MAP_STATE
L
Linus Torvalds 已提交
954 955
	bool

956
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
957 958
	bool

959
config HOTPLUG_CPU
960 961 962 963 964 965 966 967 968 969
	bool "Support for hot-pluggable CPUs"
	depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Say Y here to allow turning CPUs off and on. CPUs can be
	  controlled through /sys/devices/system/cpu.
	  (Note: power management support will enable this option
	    automatically on SMP systems. )
	  Say N if you want to disable CPU hotplug.

config SYS_SUPPORTS_HOTPLUG_CPU
970 971
	bool

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972 973 974 975 976 977 978 979 980
config I8259
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

981 982 983
config MIPS_NILE4
	bool

984 985 986
config SYNC_R4K
	bool

987 988 989
config MIPS_MACHINE
	def_bool n

990 991 992
config NO_IOPORT
	def_bool n

993 994 995
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
996
	select ISA_DMA_API
997

998 999
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1000
	select GENERIC_ISA_DMA
1001

1002 1003 1004
config ISA_DMA_API
	bool

Y
Yoichi Yuasa 已提交
1005 1006 1007
config GENERIC_GPIO
	bool

1008 1009 1010
config HOLES_IN_ZONE
	bool

1011
#
M
Masanari Iida 已提交
1012
# Endianness selection.  Sufficiently obscure so many users don't know what to
1013 1014 1015 1016
# 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
1017
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1018 1019
	help
	  Some MIPS machines can be configured for either little or big endian
1020
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1021
	  Linux distribution.  In general there is one preferred byteorder for a
1022
	  particular system but some systems are just as commonly used in the
1023
	  one or the other endianness.
1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035

config CPU_BIG_ENDIAN
	bool "Big endian"
	depends on SYS_SUPPORTS_BIG_ENDIAN

config CPU_LITTLE_ENDIAN
	bool "Little endian"
	depends on SYS_SUPPORTS_LITTLE_ENDIAN
	help

endchoice

1036 1037 1038
config EXPORT_UASM
	bool

1039 1040 1041
config SYS_SUPPORTS_APM_EMULATION
	bool

1042 1043 1044 1045 1046
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1047

1048 1049 1050 1051 1052
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1053 1054 1055
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1056 1057 1058 1059 1060 1061
config IRQ_CPU
	bool

config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1062 1063 1064 1065 1066 1067
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1068 1069 1070
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1071 1072 1073
config IRQ_GT641XX
	bool

1074 1075 1076
config IRQ_GIC
	bool

1077
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1078 1079
	bool

M
Marc St-Jean 已提交
1080 1081 1082
config NO_EXCEPT_FILL
	bool

1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094
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

1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_CPU
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select GENERIC_GPIO
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

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Linus Torvalds 已提交
1112 1113 1114
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1115 1116 1117
config SGI_HAS_INDYDOG
	bool

1118 1119 1120
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135
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

1136
config FW_ARC32
1137 1138
	bool

P
Paul Bolle 已提交
1139
config FW_SNIPROM
1140 1141
	bool

L
Linus Torvalds 已提交
1142 1143 1144 1145 1146
config BOOT_ELF32
	bool

config MIPS_L1_CACHE_SHIFT
	int
1147
	default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL
1148
	default "6" if MIPS_CPU_SCACHE
1149
	default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON
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1150 1151 1152 1153 1154 1155 1156
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1157
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1158 1159 1160

config ARC_MEMORY
	bool
1161
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
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	default y

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

1169
config FW_ARC64
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	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

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config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
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	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

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	  It has an internal FPGA northbridge, which is compatible to
1190 1191 1192 1193 1194 1195
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1196 1197
	select GENERIC_GPIO
	select ARCH_REQUIRE_GPIOLIB
1198 1199 1200 1201 1202 1203 1204 1205
	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.

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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.

1214 1215
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1216
	depends on SYS_HAS_CPU_MIPS32_R1
1217
	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1219
	select CPU_SUPPORTS_HIGHMEM
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	help
1221
	  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"
1233
	depends on SYS_HAS_CPU_MIPS32_R2
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
1236
	select CPU_SUPPORTS_HIGHMEM
1237
	help
1238
	  Choose this option to build a kernel for release 2 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.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1246
	depends on SYS_HAS_CPU_MIPS64_R1
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	select CPU_HAS_PREFETCH
1248 1249
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1250
	select CPU_SUPPORTS_HIGHMEM
1251
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
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	  Release 2 of the MIPS64 architecture is available since several
	  years so chances are you even have a MIPS64 Release 2 processor
	  in which case you should choose CPU_MIPS64_R2 instead for better
	  performance.

config CPU_MIPS64_R2
	bool "MIPS64 Release 2"
1265
	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
1269
	select CPU_SUPPORTS_HIGHMEM
1270
	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"
1280
	depends on SYS_HAS_CPU_R3000
1281
	select CPU_HAS_WB
1282
	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"
1294
	depends on SYS_HAS_CPU_TX39XX
1295
	select CPU_SUPPORTS_32BIT_KERNEL
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config CPU_VR41XX
	bool "R41xx"
1299
	depends on SYS_HAS_CPU_VR41XX
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1303
	  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"
1310
	depends on SYS_HAS_CPU_R4300
1311 1312
	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"
1318
	depends on SYS_HAS_CPU_R4X00
1319 1320
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1321
	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"
1328
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1332
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1336
	depends on SYS_HAS_CPU_R5000
1337 1338
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1339
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1345
	depends on SYS_HAS_CPU_R5432
1346 1347
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1348
	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
1355
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_R6000
	bool "R6000"
1362
	depends on SYS_HAS_CPU_R6000
1363
	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"
1370
	depends on SYS_HAS_CPU_NEVADA
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	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1373
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1379
	depends on SYS_HAS_CPU_R8000
1380
	select CPU_HAS_PREFETCH
1381
	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"
1388
	depends on SYS_HAS_CPU_R10000
1389
	select CPU_HAS_PREFETCH
1390 1391
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1393
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1399
	depends on SYS_HAS_CPU_RM7000
1400
	select CPU_HAS_PREFETCH
1401 1402
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1404
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1408
	depends on SYS_HAS_CPU_SB1
1409 1410
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1412
	select CPU_SUPPORTS_HUGEPAGES
1413
	select WEAK_ORDERING
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1415 1416
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1417
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1418
	select ARCH_SPARSEMEM_ENABLE
1419 1420 1421 1422 1423 1424
	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
1425
	select CPU_SUPPORTS_HUGEPAGES
1426 1427
	select LIBFDT
	select USE_OF
1428 1429 1430 1431 1432 1433
	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.

1434 1435 1436
config CPU_BMIPS3300
	bool "BMIPS3300"
	depends on SYS_HAS_CPU_BMIPS3300
1437
	select CPU_BMIPS
1438 1439 1440 1441 1442 1443
	help
	  Broadcom BMIPS3300 processors.

config CPU_BMIPS4350
	bool "BMIPS4350"
	depends on SYS_HAS_CPU_BMIPS4350
1444
	select CPU_BMIPS
1445 1446 1447 1448 1449 1450 1451 1452
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS4350 ("VIPER") processors.

config CPU_BMIPS4380
	bool "BMIPS4380"
	depends on SYS_HAS_CPU_BMIPS4380
1453
	select CPU_BMIPS
1454 1455 1456 1457 1458 1459 1460 1461
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS4380 processors.

config CPU_BMIPS5000
	bool "BMIPS5000"
	depends on SYS_HAS_CPU_BMIPS5000
1462
	select CPU_BMIPS
1463
	select CPU_SUPPORTS_HIGHMEM
1464
	select MIPS_CPU_SCACHE
1465 1466 1467 1468 1469
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	help
	  Broadcom BMIPS5000 processors.

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config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1476
	select CPU_SUPPORTS_HUGEPAGES
1477 1478 1479 1480
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1481 1482 1483 1484 1485 1486 1487 1488 1489 1490

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
1491
	select CPU_MIPSR2
1492 1493
	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

1523 1524 1525 1526 1527
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZMA
1528
	select HAVE_KERNEL_LZO
1529 1530 1531 1532 1533

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1534 1535 1536 1537 1538
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1539
	select CPU_SUPPORTS_HUGEPAGES
1540

1541 1542 1543 1544 1545 1546 1547 1548
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM

1549 1550 1551 1552 1553 1554 1555 1556 1557
config CPU_BMIPS
	bool
	select CPU_MIPS32
	select CPU_SUPPORTS_32BIT_KERNEL
	select DMA_NONCOHERENT
	select IRQ_CPU
	select SWAP_IO_SPACE
	select WEAK_ORDERING

1558
config SYS_HAS_CPU_LOONGSON2E
1559 1560
	bool

1561 1562
config SYS_HAS_CPU_LOONGSON2F
	bool
1563 1564
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1565
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1566

1567 1568 1569
config SYS_HAS_CPU_LOONGSON1B
	bool

1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605
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

1606 1607 1608
config SYS_HAS_CPU_R5500
	bool

1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626
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

1627 1628 1629
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641
config SYS_HAS_CPU_BMIPS3300
	bool

config SYS_HAS_CPU_BMIPS4350
	bool

config SYS_HAS_CPU_BMIPS4380
	bool

config SYS_HAS_CPU_BMIPS5000
	bool

1642 1643 1644
config SYS_HAS_CPU_XLR
	bool

1645 1646 1647
config SYS_HAS_CPU_XLP
	bool

1648 1649 1650 1651
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
1652 1653
config WEAK_ORDERING
	bool
1654 1655 1656 1657 1658 1659 1660

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

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
1665 1666 1667 1668 1669 1670 1671 1672 1673 1674
#
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
1676 1677 1678 1679 1680 1681 1682
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
1683
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
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config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
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config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
1697 1698
config CPU_SUPPORTS_HUGEPAGES
	bool
1699 1700
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
1701 1702
config MIPS_PGD_C0_CONTEXT
	bool
1703
	default y if 64BIT && CPU_MIPSR2 && !CPU_XLP
1704

1705 1706 1707 1708 1709
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
       bool
1710
       default y if CPU_MIPSR1 || CPU_MIPSR2
1711

1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730
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
1731
	select HAVE_SYSCALL_WRAPPERS
1732 1733 1734 1735 1736
	help
	  Select this option if you want to build a 64-bit kernel.

endchoice

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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	depends on !CPU_LOONGSON2
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	help
	 This option select the standard 4kB Linux page size.  On some
	 R3000-family processors this is the only available page size.  Using
	 4kB page size will minimize memory consumption and is therefore
	 recommended for low memory systems.

config PAGE_SIZE_8KB
	bool "8kB"
1752
	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
1756 1757
	  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"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
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	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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config PAGE_SIZE_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"
1779
	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
1784
	  writing this option is still high experimental.
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endchoice

1788 1789
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
1790 1791 1792 1793 1794 1795
	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.

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config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

1819 1820 1821 1822 1823 1824 1825
#
# 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
1843
	bool
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1845 1846 1847 1848
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)

1853 1854 1855 1856
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"
1859 1860 1861 1862 1863 1864 1865 1866

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"
1870
	depends on SYS_SUPPORTS_MULTITHREADING
1871
	select CPU_MIPSR2_IRQ_VI
1872
	select CPU_MIPSR2_IRQ_EI
1873
	select MIPS_MT
1874
	select NR_CPUS_DEFAULT_2
1875
	select SMP
1876
	select SYS_SUPPORTS_SCHED_SMT if SMP
1877
	select SYS_SUPPORTS_SMP
1878
	select SMP_UP
1879
	select MIPS_PERF_SHARED_TC_COUNTERS
1880
	help
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	  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
1891

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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 ...
1896 1897
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
1898
	select CPU_MIPSR2_IRQ_EI
1899
	select MIPS_MT
1900
	select NR_CPUS_DEFAULT_8
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	select SMP
1902
	select SYS_SUPPORTS_SMP
1903
	select SMP_UP
1904
	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

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config MIPS_MT
	bool

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

config SYS_SUPPORTS_SCHED_SMT
	bool

1933 1934 1935
config SYS_SUPPORTS_MULTITHREADING
	bool

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

config MIPS_VPE_LOADER
	bool "VPE loader support."
	depends on SYS_SUPPORTS_MULTITHREADING
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select MIPS_MT
	help
	  Includes a loader for loading an elf relocatable object
	  onto another VPE and running it.
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1951 1952 1953
config MIPS_MT_SMTC_IM_BACKSTOP
	bool "Use per-TC register bits as backstop for inhibited IM bits"
	depends on MIPS_MT_SMTC
1954
	default n
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	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
1961
	  impact on interrupt service overhead.
1962

1963 1964 1965 1966 1967 1968 1969 1970
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
1971 1972
	  platform code.  Adds some overhead to interrupt dispatch, and
	  should be used only if you know what you are doing.
1973

1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985
config MIPS_VPE_LOADER_TOM
	bool "Load VPE program into memory hidden from linux"
	depends on MIPS_VPE_LOADER
	default y
	help
	  The loader can use memory that is present but has been hidden from
	  Linux using the kernel command line option "mem=xxMB". It's up to
	  you to ensure the amount you put in the option and the space your
	  program requires is less or equal to the amount physically present.

# this should possibly be in drivers/char, but it is rather cpu related. Hmmm
config MIPS_VPE_APSP_API
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	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
	help
1989

1990 1991 1992
config MIPS_CMP
	bool "MIPS CMP framework support"
	depends on SYS_SUPPORTS_MIPS_CMP
1993
	select SYNC_R4K
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	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT if SMP
	select WEAK_ORDERING
	default n
	help
	  This is a placeholder option for the GCMP work. It will need to
	  be handled differently...

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config SB1_PASS_1_WORKAROUNDS
	bool
	depends on CPU_SB1_PASS_1
	default y

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

config SB1_PASS_2_1_WORKAROUNDS
	bool
	depends on CPU_SB1 && CPU_SB1_PASS_2
	default y

config 64BIT_PHYS_ADDR
2018
	bool
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2020 2021 2022
config ARCH_PHYS_ADDR_T_64BIT
       def_bool 64BIT_PHYS_ADDR

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

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config CPU_HAS_WB
2036
	bool
2037

2038 2039 2040
config XKS01
	bool

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#
# Vectored interrupt mode is an R2 feature
#
2044
config CPU_MIPSR2_IRQ_VI
2045
	bool
2046

2047 2048 2049
#
# Extended interrupt mode is an R2 feature
#
2050
config CPU_MIPSR2_IRQ_EI
2051
	bool
2052

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

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#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

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#
# - 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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2094 2095 2096
config SYS_SUPPORTS_SMARTMIPS
	bool

2097 2098
config ARCH_FLATMEM_ENABLE
	def_bool y
2099
	depends on !NUMA && !CPU_LOONGSON2
2100

2101 2102 2103 2104
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2105
	  Say Y to support efficient handling of discontiguous physical memory,
2106 2107 2108 2109
	  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.

2110 2111
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2113

2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126
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

2132 2133
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2134
	depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP)
2135 2136 2137 2138 2139
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2140 2141
source "mm/Kconfig"

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config SMP
	bool "Multi-Processing support"
2144
	depends on SYS_SUPPORTS_SMP
2145
	select USE_GENERIC_SMP_HELPERS
2146
	help
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	  This enables support for systems with more than one CPU. If you have
	  a system with only one CPU, like most personal computers, say N. If
	  you have a system with more than one CPU, say Y.

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

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

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

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config SMP_UP
	bool

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config SYS_SUPPORTS_MIPS_CMP
	bool

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config SYS_SUPPORTS_SMP
	bool

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config NR_CPUS_DEFAULT_1
	bool

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config NR_CPUS_DEFAULT_2
	bool

config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

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config NR_CPUS
	int "Maximum number of CPUs (2-64)"
2197
	range 1 64 if NR_CPUS_DEFAULT_1
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	depends on SMP
2199
	default "1" if NR_CPUS_DEFAULT_1
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	default "2" if NR_CPUS_DEFAULT_2
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
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	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
2210 2211
	  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
2214 2215 2216
	  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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2218 2219 2220
config MIPS_PERF_SHARED_TC_COUNTERS
	bool

2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231
#
# Timer Interrupt Frequency Configuration
#

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

	config HZ_48
2232
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
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	config HZ_100
		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ

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

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

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

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

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

endchoice

config SYS_SUPPORTS_48HZ
	bool

config SYS_SUPPORTS_100HZ
	bool

config SYS_SUPPORTS_128HZ
	bool

config SYS_SUPPORTS_250HZ
	bool

config SYS_SUPPORTS_256HZ
	bool

config SYS_SUPPORTS_1000HZ
	bool

config SYS_SUPPORTS_1024HZ
	bool

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

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

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source "kernel/Kconfig.preempt"
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2294
config KEXEC
2295
	bool "Kexec system call"
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	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
2299
	  but it is independent of the system firmware.   And like a reboot
2300 2301
	  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.
2303 2304 2305 2306 2307 2308 2309

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

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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).

2333 2334
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2335
	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 USE_OF
2351
	bool
2352
	select OF
2353
	select OF_EARLY_FLATTREE
2354
	select IRQ_DOMAIN
2355

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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
2380
	select PCI_DOMAINS
2381
	select GENERIC_PCI_IOMAP
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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"
2406
	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
2443
	select CLKSRC_I8253
2444
	select CLKEVT_I8253
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	select MIPS_EXTERNAL_TIMER
2446

2447 2448 2449
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"
2475
	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
2484
	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
2523
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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config ARCH_SUSPEND_POSSIBLE
	def_bool y
2527
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
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2529
source "kernel/power/Kconfig"
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endmenu

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

2535 2536
source "net/Kconfig"

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source "drivers/Kconfig"

2539 2540
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"