Kconfig 81.1 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_CLOCKSOURCE_DATA
	select ARCH_DISCARD_MEMBLOCK
	select ARCH_HAS_ELF_RANDOMIZE
	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_EXTABLE_SORT
	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
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	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
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	select HAVE_CONTEXT_TRACKING
	select HAVE_COPY_THREAD_TLS
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EXIT_THREAD
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MEMBLOCK_NODE_MAP
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select MODULES_USE_ELF_REL if MODULES
	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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menu "Machine selection"

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choice
	prompt "System type"
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	default MIPS_GENERIC
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config MIPS_GENERIC
	bool "Generic board-agnostic MIPS kernel"
	select BOOT_RAW
	select BUILTIN_DTB
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CSRC_R4K
	select DMA_PERDEV_COHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
	select LIBFDT
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	select MIPS_AUTO_PFN_OFFSET
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	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select MIPS_L1_CACHE_SHIFT_7
	select NO_EXCEPT_FILL
	select PCI_DRIVERS_GENERIC
	select PINCTRL
	select SMP_UP if SMP
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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_MIPS32_R6
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_MIPS64_R2
	select SYS_HAS_CPU_MIPS64_R6
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MICROMIPS
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
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	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
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	select USE_OF
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	select UHI_BOOT
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	help
	  Select this to build a kernel which aims to support multiple boards,
	  generally using a flattened device tree passed from the bootloader
	  using the boot protocol defined in the UHI (Unified Hosting
	  Interface) specification.

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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select PHYS_ADDR_T_64BIT
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
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	select GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select COMMON_CLK
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config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	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_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select 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 ATH25
	bool "Atheros AR231x/AR531x SoC support"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select IRQ_DOMAIN
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_HAS_EARLY_PRINTK
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	help
	  Support for Atheros AR231x and Atheros AR531x based boards

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config ATH79
	bool "Atheros AR71XX/AR724X/AR913X based boards"
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	select ARCH_HAS_RESET_CONTROLLER
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	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
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	select GPIOLIB
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	select PINCTRL
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	select HAVE_CLK
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	select COMMON_CLK
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	select CLKDEV_LOOKUP
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	select IRQ_MIPS_CPU
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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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART_PROM
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	select USE_OF
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	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
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	help
	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.

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config BMIPS_GENERIC
	bool "Broadcom Generic BMIPS kernel"
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	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
	select ARCH_HAS_PHYS_TO_DMA
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	select BOOT_RAW
	select NO_EXCEPT_FILL
	select USE_OF
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K
	select COMMON_CLK
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	select BCM6345_L1_IRQ
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	select BCM7038_L1_IRQ
	select BCM7120_L2_IRQ
	select BRCMSTB_L2_IRQ
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	select IRQ_MIPS_CPU
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	select DMA_NONCOHERENT
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
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	select SYS_HAS_CPU_BMIPS32_3300
	select SYS_HAS_CPU_BMIPS4350
	select SYS_HAS_CPU_BMIPS4380
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	select SYS_HAS_CPU_BMIPS5000
	select SWAP_IO_SPACE
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	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
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	select HARDIRQS_SW_RESEND
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	help
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	  Build a generic DT-based kernel image that boots on select
	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
	  must be set appropriately for your board.
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config BCM47XX
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	bool "Broadcom BCM47XX based boards"
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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 HAVE_PCI
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	select IRQ_MIPS_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_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select GPIOLIB
	select LEDS_GPIO_REGISTER
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	select BCM47XX_NVRAM
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	select BCM47XX_SPROM
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	select BCM47XX_SSB if !BCM47XX_BCMA
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	help
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	  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
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	select SYNC_R4K
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
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	select GPIOLIB
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	select HAVE_CLK
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	select MIPS_L1_CACHE_SHIFT_4
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	select CLKDEV_LOOKUP
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	help
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	  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 FORCE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
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	select IRQ_GT641XX
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	select PCI_GT64XXX_PCI0
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	select SYS_HAS_CPU_NEVADA
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select USE_GENERIC_EARLY_PRINTK_8250
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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 if CPU_R4X00
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	select CSRC_IOASIC
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	select CSRC_R4K if CPU_R4X00
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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_MAP
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	select IRQ_MIPS_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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	select MIPS_L1_CACHE_SHIFT_4
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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 ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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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_MIPS_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.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	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
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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	select LIBFDT
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	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
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CRC32
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
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	select HAVE_PCI
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	select IRQ_MIPS_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_LOONGSON32
	bool "Loongson-1 family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the Loongson-1 family of machines.
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	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).
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config MACH_LOONGSON64
	bool "Loongson-2/3 family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of Loongson-2/3 family of machines.
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	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
	  family of multi-core CPUs. They are both 64-bit general-purpose
	  MIPS-compatible CPUs. Loongson-2/3 are developed by the 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_PISTACHIO
	bool "IMG Pistachio SoC based boards"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select GPIOLIB
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	select IRQ_MIPS_CPU
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	select LIBFDT
	select MFD_SYSCON
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select PINCTRL
	select REGULATOR
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

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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 ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select BOOT_ELF32
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	select BOOT_RAW
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	select BUILTIN_DTB
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	select CEVT_R4K
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	select CLKSRC_MIPS_GIC
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	select COMMON_CLK
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	select CSRC_R4K
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	select DMA_MAYBE_COHERENT
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select HAVE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
	select LIBFDT
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	select MIPS_BONITO64
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	select MIPS_CPU_SCACHE
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	select MIPS_GIC
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	select MIPS_L1_CACHE_SHIFT_6
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	select MIPS_MSC
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	select PCI_GT64XXX_PCI0
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	select SMP_UP if SMP
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
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	select SYS_HAS_CPU_MIPS32_R3_5
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	select SYS_HAS_CPU_MIPS32_R5
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	select SYS_HAS_CPU_MIPS32_R6
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	select SYS_HAS_CPU_MIPS64_R1
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	select SYS_HAS_CPU_MIPS64_R2
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	select SYS_HAS_CPU_MIPS64_R6
526 527
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
528 529
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
530
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
531
	select SYS_SUPPORTS_HIGHMEM
532
	select SYS_SUPPORTS_LITTLE_ENDIAN
533
	select SYS_SUPPORTS_MICROMIPS
534
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
535
	select SYS_SUPPORTS_MIPS_CMP
536
	select SYS_SUPPORTS_MIPS_CPS
537
	select SYS_SUPPORTS_MULTITHREADING
538
	select SYS_SUPPORTS_RELOCATABLE
539
	select SYS_SUPPORTS_SMARTMIPS
540
	select SYS_SUPPORTS_VPE_LOADER
541
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
542
	select USE_OF
543
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
544
	help
545
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
546 547
	  board.

548 549 550 551 552 553 554 555
config MACH_PIC32
	bool "Microchip PIC32 Family"
	help
	  This enables support for the Microchip PIC32 family of platforms.

	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
	  microcontrollers.

556 557 558
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
559
	select HAVE_PCI
560 561
	help
	  This enables support for the NEC Electronics Mark-eins boards.
562

563
config MACH_VR41XX
564
	bool "NEC VR4100 series based machines"
565
	select CEVT_R4K
566
	select CSRC_R4K
567
	select SYS_HAS_CPU_VR41XX
568
	select SYS_SUPPORTS_MIPS16
569
	select GPIOLIB
570

571 572 573 574
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
575
	  Support for NXP Semiconductors STB220 Development Board.
576 577 578 579 580 581

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
582
	  Support for NXP Semiconductors STB225 Development Board.
583

M
Marc St-Jean 已提交
584 585
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
586 587
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
588 589 590 591 592 593 594 595
	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
596
	select SYS_SUPPORTS_MIPS16
597
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
598 599
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
600 601
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
602 603 604 605 606 607
	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.

J
John Crispin 已提交
608 609 610 611 612 613
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
614
	select IRQ_MIPS_CPU
J
John Crispin 已提交
615 616 617 618 619
	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
620
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
621 622
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
623 624
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
625

L
Linus Torvalds 已提交
626
config SGI_IP22
627
	bool "SGI IP22 (Indy/Indigo2)"
628 629
	select FW_ARC
	select FW_ARC32
630
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
631
	select BOOT_ELF32
632
	select CEVT_R4K
633
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
634
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
635
	select DMA_NONCOHERENT
636
	select HAVE_EISA
637
	select I8253
638
	select I8259
L
Linus Torvalds 已提交
639
	select IP22_CPU_SCACHE
640
	select IRQ_MIPS_CPU
641
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
642 643
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
644
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
645 646 647
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
648
	select SWAP_IO_SPACE
649 650
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
651 652 653 654 655 656 657 658
	#
	# 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
659 660
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
661
	select SYS_SUPPORTS_BIG_ENDIAN
662
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
663 664 665 666 667 668
	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
669
	bool "SGI IP27 (Origin200/2000)"
670
	select ARCH_HAS_PHYS_TO_DMA
671 672
	select FW_ARC
	select FW_ARC64
673
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
674
	select DEFAULT_SGI_PARTITION
675
	select SYS_HAS_EARLY_PRINTK
676
	select HAVE_PCI
677
	select IRQ_MIPS_CPU
678
	select IRQ_DOMAIN_HIERARCHY
679
	select NR_CPUS_DEFAULT_64
680 681
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
682
	select SYS_HAS_CPU_R10000
683
	select SYS_SUPPORTS_64BIT_KERNEL
684
	select SYS_SUPPORTS_BIG_ENDIAN
685
	select SYS_SUPPORTS_NUMA
686
	select SYS_SUPPORTS_SMP
687
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
688 689 690 691 692
	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.

T
Thomas Bogendoerfer 已提交
693
config SGI_IP28
694
	bool "SGI IP28 (Indigo2 R10k)"
695 696
	select FW_ARC
	select FW_ARC64
697
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
698 699 700 701 702 703
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
704
	select IRQ_MIPS_CPU
705
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
706 707 708 709
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
710
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
711 712 713 714 715
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
716 717 718 719 720 721 722 723
	#
	# 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
T
Thomas Bogendoerfer 已提交
724 725
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
726
	select MIPS_L1_CACHE_SHIFT_7
727 728 729
	help
	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
	  kernel that runs on these, say Y here.
T
Thomas Bogendoerfer 已提交
730

L
Linus Torvalds 已提交
731
config SGI_IP32
732
	bool "SGI IP32 (O2)"
733
	select ARCH_HAS_PHYS_TO_DMA
734 735
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
736
	select BOOT_ELF32
737
	select CEVT_R4K
738
	select CSRC_R4K
L
Linus Torvalds 已提交
739
	select DMA_NONCOHERENT
740
	select HAVE_PCI
741
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
742 743
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
744 745 746
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
747
	select SYS_HAS_CPU_NEVADA
748
	select SYS_SUPPORTS_64BIT_KERNEL
749 750
	select SYS_SUPPORTS_BIG_ENDIAN
	help
751
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
752

753 754
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
755
	select BOOT_ELF32
756
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
757
	select SWAP_IO_SPACE
758
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
759 760 761
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

762 763
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
764
	select BOOT_ELF32
765
	select SIBYTE_BCM1120
766
	select SWAP_IO_SPACE
767
	select SYS_HAS_CPU_SB1
768
	select SYS_SUPPORTS_BIG_ENDIAN
769
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
770

771 772
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
773
	select BOOT_ELF32
774
	select SIBYTE_BCM1125
775
	select SWAP_IO_SPACE
776
	select SYS_HAS_CPU_SB1
777
	select SYS_SUPPORTS_BIG_ENDIAN
778
	select SYS_SUPPORTS_HIGHMEM
779
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
780

781
config SIBYTE_RHONE
782
	bool "Sibyte BCM91125E-Rhone"
783 784 785
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
786
	select SYS_HAS_CPU_SB1
787 788
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
789

790 791
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
792
	select BOOT_ELF32
793
	select HAVE_PATA_PLATFORM
794
	select SIBYTE_SB1250
795
	select SWAP_IO_SPACE
796
	select SYS_HAS_CPU_SB1
797
	select SYS_SUPPORTS_BIG_ENDIAN
798
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
799
	select SYS_SUPPORTS_LITTLE_ENDIAN
800
	select ZONE_DMA32 if 64BIT
801
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
802

803 804
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
805
	select BOOT_ELF32
806
	select HAVE_PATA_PLATFORM
807 808
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
809
	select SYS_HAS_CPU_SB1
810 811 812
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
813
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
814

815 816
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
817 818 819
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
820
	select SYS_HAS_CPU_SB1
821 822
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
823
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
824

825 826
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
827
	select BOOT_ELF32
828 829
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
830
	select SWAP_IO_SPACE
831
	select SYS_HAS_CPU_SB1
832
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
833
	select SYS_SUPPORTS_HIGHMEM
834
	select SYS_SUPPORTS_LITTLE_ENDIAN
835
	select ZONE_DMA32 if 64BIT
836
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
837

838 839
config SNI_RM
	bool "SNI RM200/300/400"
840 841
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
842
	select FW_SNIPROM if CPU_BIG_ENDIAN
843
	select ARCH_MAY_HAVE_PC_FDC
844
	select ARCH_MIGHT_HAVE_PC_PARPORT
845
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
846
	select BOOT_ELF32
847
	select CEVT_R4K
848
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
849
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
850 851
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
852
	select HAVE_EISA
853
	select HAVE_PCSPKR_PLATFORM
854
	select HAVE_PCI
855
	select IRQ_MIPS_CPU
856
	select I8253
L
Linus Torvalds 已提交
857 858
	select I8259
	select ISA
859
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
860
	select SYS_HAS_CPU_R4X00
861
	select SYS_HAS_CPU_R5000
862
	select SYS_HAS_CPU_R10000
863
	select R5000_CPU_SCACHE
864
	select SYS_HAS_EARLY_PRINTK
865
	select SYS_SUPPORTS_32BIT_KERNEL
866
	select SYS_SUPPORTS_64BIT_KERNEL
867
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
868
	select SYS_SUPPORTS_HIGHMEM
869
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
870
	help
871 872
	  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
873 874 875
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

876 877
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
878

879 880
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
881

882 883 884 885 886
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
887
	select HAVE_PCI
888
	select IRQ_MIPS_CPU
889 890 891 892 893
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
894
	select GPIOLIB
895
	select MIPS_L1_CACHE_SHIFT_4
896 897 898 899
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

900 901
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
902
	select CEVT_R4K
903
	select ARCH_HAS_PHYS_TO_DMA
904
	select HAVE_RAPIDIO
905
	select PHYS_ADDR_T_64BIT
906 907
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
908
	select EDAC_SUPPORT
909
	select EDAC_ATOMIC_SCRUB
910 911
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
912
	select SYS_HAS_EARLY_PRINTK
913
	select SYS_HAS_CPU_CAVIUM_OCTEON
914
	select HAVE_PCI
D
David Daney 已提交
915
	select ZONE_DMA32
916
	select HOLES_IN_ZONE
917
	select GPIOLIB
918 919 920 921
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
922 923
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
924
	select BUILTIN_DTB
925
	select MTD_COMPLEX_MAPPINGS
926
	select SWIOTLB
S
Steven J. Hill 已提交
927
	select SYS_SUPPORTS_RELOCATABLE
928 929 930 931 932 933 934 935 936 937 938 939 940
	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.

941 942 943 944 945 946
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
947
	select HAVE_PCI
948 949 950
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
951
	select PHYS_ADDR_T_64BIT
952 953 954 955 956
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
957
	select IRQ_MIPS_CPU
958
	select ZONE_DMA32 if 64BIT
959 960
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
961 962
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
963 964 965 966
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

967 968 969 970 971 972
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
973
	select HAVE_PCI
974 975
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
976
	select PHYS_ADDR_T_64BIT
977
	select GPIOLIB
978 979 980 981 982 983
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
984
	select IRQ_MIPS_CPU
985
	select ZONE_DMA32 if 64BIT
986 987
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
988
	select USE_OF
989 990
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
991 992 993 994
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
config MIPS_PARAVIRT
	bool "Para-Virtualized guest system"
	select CEVT_R4K
	select CSRC_R4K
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_4
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R2
	select SYS_HAS_CPU_CAVIUM_OCTEON
1008
	select HAVE_PCI
1009 1010 1011 1012
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1013
endchoice
L
Linus Torvalds 已提交
1014

R
Ralf Baechle 已提交
1015
source "arch/mips/alchemy/Kconfig"
1016
source "arch/mips/ath25/Kconfig"
1017
source "arch/mips/ath79/Kconfig"
1018
source "arch/mips/bcm47xx/Kconfig"
1019
source "arch/mips/bcm63xx/Kconfig"
1020
source "arch/mips/bmips/Kconfig"
1021
source "arch/mips/generic/Kconfig"
1022
source "arch/mips/jazz/Kconfig"
1023
source "arch/mips/jz4740/Kconfig"
1024
source "arch/mips/lantiq/Kconfig"
1025
source "arch/mips/lasat/Kconfig"
1026
source "arch/mips/pic32/Kconfig"
1027
source "arch/mips/pistachio/Kconfig"
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1028
source "arch/mips/pmcs-msp71xx/Kconfig"
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1029
source "arch/mips/ralink/Kconfig"
1030
source "arch/mips/sgi-ip27/Kconfig"
1031
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1032
source "arch/mips/txx9/Kconfig"
1033
source "arch/mips/vr41xx/Kconfig"
1034
source "arch/mips/cavium-octeon/Kconfig"
1035 1036
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1037
source "arch/mips/netlogic/Kconfig"
1038
source "arch/mips/paravirt/Kconfig"
1039

1040 1041
endmenu

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config RWSEM_GENERIC_SPINLOCK
	bool
	default y

config RWSEM_XCHGADD_ALGORITHM
	bool

1049 1050 1051 1052
config GENERIC_HWEIGHT
	bool
	default y

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1053 1054 1055 1056
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1057
config SCHED_OMIT_FRAME_POINTER
1058 1059 1060
	bool
	default y

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1061 1062 1063
#
# Select some configuration options automatically based on user selections.
#
1064
config FW_ARC
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1065 1066
	bool

1067 1068 1069
config ARCH_MAY_HAVE_PC_FDC
	bool

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1070 1071 1072
config BOOT_RAW
	bool

1073 1074 1075
config CEVT_BCM1480
	bool

1076 1077 1078
config CEVT_DS1287
	bool

1079 1080 1081
config CEVT_GT641XX
	bool

1082 1083 1084
config CEVT_R4K
	bool

1085 1086 1087
config CEVT_SB1250
	bool

1088 1089 1090
config CEVT_TXX9
	bool

1091 1092 1093
config CSRC_BCM1480
	bool

1094 1095 1096
config CSRC_IOASIC
	bool

1097 1098 1099
config CSRC_R4K
	bool

1100 1101 1102
config CSRC_SB1250
	bool

1103 1104 1105
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1106
config GPIO_TXX9
1107
	select GPIOLIB
1108 1109
	bool

1110
config FW_CFE
1111 1112
	bool

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config ARCH_SUPPORTS_UPROBES
	bool

1116
config DMA_MAYBE_COHERENT
1117
	select ARCH_HAS_DMA_COHERENCE_H
1118 1119 1120
	select DMA_NONCOHERENT
	bool

1121 1122
config DMA_PERDEV_COHERENT
	bool
1123
	select ARCH_HAS_SETUP_DMA_OPS
1124
	select DMA_NONCOHERENT
1125

1126 1127
config DMA_NONCOHERENT
	bool
1128
	select ARCH_HAS_DMA_MMAP_PGPROT
1129
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1130
	select NEED_DMA_MAP_STATE
1131
	select ARCH_HAS_DMA_COHERENT_TO_PFN
1132
	select DMA_NONCOHERENT_CACHE_SYNC
1133

1134
config SYS_HAS_EARLY_PRINTK
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1135 1136
	bool

1137
config SYS_SUPPORTS_HOTPLUG_CPU
1138 1139
	bool

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1140 1141 1142 1143 1144 1145
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1146 1147 1148
config MIPS_NILE4
	bool

1149 1150 1151
config SYNC_R4K
	bool

1152 1153 1154
config MIPS_MACHINE
	def_bool n

1155
config NO_IOPORT_MAP
1156 1157
	def_bool n

1158 1159
config GENERIC_CSUM
	bool
1160
	default y if !CPU_HAS_LOAD_STORE_LR
1161

1162 1163 1164
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1165
	select ISA_DMA_API
1166

1167 1168
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1169
	select GENERIC_ISA_DMA
1170

1171 1172 1173
config ISA_DMA_API
	bool

1174 1175 1176
config HOLES_IN_ZONE
	bool

1177 1178 1179
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1180 1181 1182
	  Selected if the platform supports relocating the kernel.
	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
	  to allow access to command line and entropy sources.
1183

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1184 1185 1186 1187 1188 1189 1190 1191 1192
config MIPS_CBPF_JIT
	def_bool y
	depends on BPF_JIT && HAVE_CBPF_JIT

config MIPS_EBPF_JIT
	def_bool y
	depends on BPF_JIT && HAVE_EBPF_JIT


1193
#
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# Endianness selection.  Sufficiently obscure so many users don't know what to
1195 1196 1197 1198
# 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
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1199
	prompt "Endianness selection"
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	help
	  Some MIPS machines can be configured for either little or big endian
1202
	  byte order. These modes require different kernels and a different
M
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	  Linux distribution.  In general there is one preferred byteorder for a
1204
	  particular system but some systems are just as commonly used in the
1205
	  one or the other endianness.
1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216

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

1217 1218 1219
config EXPORT_UASM
	bool

1220 1221 1222
config SYS_SUPPORTS_APM_EMULATION
	bool

1223 1224 1225 1226 1227
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1228

1229 1230 1231 1232 1233
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1234 1235 1236
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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config IRQ_CPU_RM7K
	bool

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1240 1241 1242 1243 1244 1245
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1246 1247 1248
config IRQ_TXX9
	bool

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1249 1250 1251
config IRQ_GT641XX
	bool

1252
config PCI_GT64XXX_PCI0
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	bool

1255 1256 1257
config PCI_XTALK_BRIDGE
	bool

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1258 1259 1260
config NO_EXCEPT_FILL
	bool

1261 1262 1263 1264 1265
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1266
	select IRQ_MIPS_CPU
1267 1268 1269 1270 1271 1272
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1273 1274 1275 1276
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1277
	select IRQ_MIPS_CPU
1278 1279 1280 1281 1282
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1283
	select SYS_SUPPORTS_MIPS16
1284 1285 1286 1287 1288 1289
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1290 1291 1292
config MIPS_SPRAM
	bool

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1293 1294 1295
config SWAP_IO_SPACE
	bool

T
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1296 1297 1298
config SGI_HAS_INDYDOG
	bool

1299 1300 1301
config SGI_HAS_HAL2
	bool

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1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316
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

1317
config FW_ARC32
1318 1319
	bool

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1320
config FW_SNIPROM
1321 1322
	bool

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1323 1324 1325
config BOOT_ELF32
	bool

1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337
config MIPS_L1_CACHE_SHIFT_4
	bool

config MIPS_L1_CACHE_SHIFT_5
	bool

config MIPS_L1_CACHE_SHIFT_6
	bool

config MIPS_L1_CACHE_SHIFT_7
	bool

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config MIPS_L1_CACHE_SHIFT
	int
1340
	default "7" if MIPS_L1_CACHE_SHIFT_7
1341 1342 1343
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
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	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
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1351
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1352 1353 1354

config ARC_MEMORY
	bool
1355
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
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1356 1357 1358 1359
	default y

config ARC_PROMLIB
	bool
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1360
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
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1361 1362
	default y

1363
config FW_ARC64
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1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1375 1376 1377
config CPU_LOONGSON3
	bool "Loongson 3 CPU"
	depends on SYS_HAS_CPU_LOONGSON3
1378
	select ARCH_HAS_PHYS_TO_DMA
1379 1380 1381
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1382
	select CPU_HAS_LOAD_STORE_LR
1383 1384
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1385
	select MIPS_PGD_C0_CONTEXT
1386
	select MIPS_L1_CACHE_SHIFT_6
1387
	select GPIOLIB
1388
	select SWIOTLB
1389 1390 1391 1392
	help
		The Loongson 3 processor implements the MIPS64R2 instruction
		set with many extensions.

1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410
config LOONGSON3_ENHANCEMENT
	bool "New Loongson 3 CPU Enhancements"
	default n
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	depends on CPU_LOONGSON3
	help
	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
	  Fast TLB refill support, etc.

	  This option enable those enhancements which are not probed at run
	  time. If you want a generic kernel to run on all Loongson 3 machines,
	  please say 'N' here. If you want a high-performance kernel to run on
	  new Loongson 3 machines only, please say 'Y' here.

1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425
config CPU_LOONGSON3_WORKAROUNDS
	bool "Old Loongson 3 LLSC Workarounds"
	default y if SMP
	depends on CPU_LOONGSON3
	help
	  Loongson 3 processors have the llsc issues which require workarounds.
	  Without workarounds the system may hang unexpectedly.

	  Newer Loongson 3 will fix 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 old systems.

	  If unsure, please say Y.

1426 1427 1428 1429
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1430 1431 1432 1433
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

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Lucas De Marchi 已提交
1434
	  It has an internal FPGA northbridge, which is compatible to
1435 1436 1437 1438 1439 1440
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1441
	select GPIOLIB
1442 1443 1444 1445 1446 1447 1448 1449
	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.

1450 1451 1452 1453
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
1454
	select LEDS_GPIO_REGISTER
1455 1456
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1457 1458
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1459

Y
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1460 1461 1462 1463 1464 1465 1466
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
	select CPU_LOONGSON1
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1467 1468
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1469

1470 1471
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1472
	depends on SYS_HAS_CPU_MIPS32_R1
1473
	select CPU_HAS_PREFETCH
1474
	select CPU_HAS_LOAD_STORE_LR
R
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1475
	select CPU_SUPPORTS_32BIT_KERNEL
1476
	select CPU_SUPPORTS_HIGHMEM
R
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1477
	help
1478
	  Choose this option to build a kernel for release 1 or later of the
R
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1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489
	  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"
1490
	depends on SYS_HAS_CPU_MIPS32_R2
R
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1491
	select CPU_HAS_PREFETCH
1492
	select CPU_HAS_LOAD_STORE_LR
R
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1493
	select CPU_SUPPORTS_32BIT_KERNEL
1494
	select CPU_SUPPORTS_HIGHMEM
P
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1495
	select CPU_SUPPORTS_MSA
1496
	select HAVE_KVM
1497
	help
1498
	  Choose this option to build a kernel for release 2 or later of the
1499 1500 1501 1502 1503
	  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.

1504
config CPU_MIPS32_R6
1505
	bool "MIPS32 Release 6"
1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS32r6 processor. If you own an older
	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

1519 1520
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1521
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1522
	select CPU_HAS_PREFETCH
1523
	select CPU_HAS_LOAD_STORE_LR
1524 1525
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1526
	select CPU_SUPPORTS_HIGHMEM
1527
	select CPU_SUPPORTS_HUGEPAGES
1528 1529 1530 1531 1532 1533
	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.
R
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1534 1535 1536 1537 1538 1539 1540
	  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"
1541
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1542
	select CPU_HAS_PREFETCH
1543
	select CPU_HAS_LOAD_STORE_LR
R
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1544 1545
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1546
	select CPU_SUPPORTS_HIGHMEM
1547
	select CPU_SUPPORTS_HUGEPAGES
P
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1548
	select CPU_SUPPORTS_MSA
1549
	select HAVE_KVM
R
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1550 1551 1552 1553 1554 1555
	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.
L
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1556

1557
config CPU_MIPS64_R6
1558
	bool "MIPS64 Release 6"
1559 1560 1561 1562 1563
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1564
	select CPU_SUPPORTS_HUGEPAGES
1565
	select CPU_SUPPORTS_MSA
1566
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1567
	select HAVE_KVM
1568 1569 1570 1571 1572 1573
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS64r6 processor. If you own an older
	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.

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1574 1575
config CPU_R3000
	bool "R3000"
1576
	depends on SYS_HAS_CPU_R3000
1577
	select CPU_HAS_WB
1578
	select CPU_HAS_LOAD_STORE_LR
1579
	select CPU_SUPPORTS_32BIT_KERNEL
R
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1580
	select CPU_SUPPORTS_HIGHMEM
L
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1581 1582 1583 1584 1585 1586 1587 1588 1589 1590
	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"
1591
	depends on SYS_HAS_CPU_TX39XX
1592
	select CPU_SUPPORTS_32BIT_KERNEL
1593
	select CPU_HAS_LOAD_STORE_LR
L
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1594 1595 1596

config CPU_VR41XX
	bool "R41xx"
1597
	depends on SYS_HAS_CPU_VR41XX
1598 1599
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1600
	select CPU_HAS_LOAD_STORE_LR
L
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1601
	help
1602
	  The options selects support for the NEC VR4100 series of processors.
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1603 1604 1605 1606 1607 1608
	  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"
1609
	depends on SYS_HAS_CPU_R4300
1610 1611
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1612
	select CPU_HAS_LOAD_STORE_LR
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1613 1614 1615 1616 1617
	help
	  MIPS Technologies R4300-series processors.

config CPU_R4X00
	bool "R4x00"
1618
	depends on SYS_HAS_CPU_R4X00
1619 1620
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1621
	select CPU_SUPPORTS_HUGEPAGES
1622
	select CPU_HAS_LOAD_STORE_LR
L
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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"
1629
	depends on SYS_HAS_CPU_TX49XX
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1630
	select CPU_HAS_PREFETCH
1631
	select CPU_HAS_LOAD_STORE_LR
1632 1633
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1634
	select CPU_SUPPORTS_HUGEPAGES
L
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1635 1636 1637

config CPU_R5000
	bool "R5000"
1638
	depends on SYS_HAS_CPU_R5000
1639 1640
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1641
	select CPU_SUPPORTS_HUGEPAGES
1642
	select CPU_HAS_LOAD_STORE_LR
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1643 1644 1645 1646 1647
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1648
	depends on SYS_HAS_CPU_R5432
1649 1650
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1651
	select CPU_SUPPORTS_HUGEPAGES
1652
	select CPU_HAS_LOAD_STORE_LR
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1653

1654 1655 1656 1657 1658
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1659
	select CPU_SUPPORTS_HUGEPAGES
1660
	select CPU_HAS_LOAD_STORE_LR
1661 1662 1663 1664
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1667
	depends on SYS_HAS_CPU_NEVADA
1668 1669
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1670
	select CPU_SUPPORTS_HUGEPAGES
1671
	select CPU_HAS_LOAD_STORE_LR
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1677
	depends on SYS_HAS_CPU_R8000
1678
	select CPU_HAS_PREFETCH
1679
	select CPU_HAS_LOAD_STORE_LR
1680
	select CPU_SUPPORTS_64BIT_KERNEL
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1681 1682 1683 1684 1685 1686
	help
	  MIPS Technologies R8000 processors.  Note these processors are
	  uncommon and the support for them is incomplete.

config CPU_R10000
	bool "R10000"
1687
	depends on SYS_HAS_CPU_R10000
1688
	select CPU_HAS_PREFETCH
1689
	select CPU_HAS_LOAD_STORE_LR
1690 1691
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1693
	select CPU_SUPPORTS_HUGEPAGES
L
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1694 1695 1696 1697 1698
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1699
	depends on SYS_HAS_CPU_RM7000
1700
	select CPU_HAS_PREFETCH
1701
	select CPU_HAS_LOAD_STORE_LR
1702 1703
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1705
	select CPU_SUPPORTS_HUGEPAGES
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1706 1707 1708

config CPU_SB1
	bool "SB1"
1709
	depends on SYS_HAS_CPU_SB1
1710
	select CPU_HAS_LOAD_STORE_LR
1711 1712
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1714
	select CPU_SUPPORTS_HUGEPAGES
1715
	select WEAK_ORDERING
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1716

1717 1718
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1719
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1720
	select CPU_HAS_PREFETCH
1721
	select CPU_HAS_LOAD_STORE_LR
1722 1723 1724
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1725
	select CPU_SUPPORTS_HUGEPAGES
1726 1727
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1728
	select MIPS_L1_CACHE_SHIFT_7
1729
	select HAVE_KVM
1730 1731 1732 1733 1734 1735
	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.

1736 1737 1738 1739
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1740
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1741 1742 1743 1744 1745
	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
1746
	select IRQ_MIPS_CPU
1747 1748
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1749
	select CPU_SUPPORTS_HIGHMEM
1750
	select CPU_HAS_PREFETCH
1751
	select CPU_HAS_LOAD_STORE_LR
1752 1753
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1754
	help
1755
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1756

1757 1758 1759
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1760
	select CPU_HAS_LOAD_STORE_LR
1761 1762 1763
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1764
	select CPU_SUPPORTS_HUGEPAGES
1765 1766 1767 1768
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1769 1770 1771 1772 1773 1774 1775 1776 1777 1778

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
1779
	select CPU_HAS_LOAD_STORE_LR
1780
	select CPU_MIPSR2
1781
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1783 1784
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1787 1788 1789
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1790
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from the 3.5 release such as
	  support for Enhanced Virtual Addressing (EVA).

config CPU_MIPS32_3_5_EVA
	bool "Enhanced Virtual Addressing (EVA)"
	depends on CPU_MIPS32_3_5_FEATURES
	select EVA
	default y
	help
	  Choose this option if you want to enable the Enhanced Virtual
	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
	  One of its primary benefits is an increase in the maximum size
	  of lowmem (up to 3GB). If unsure, say 'N' here.

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config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
	depends on CPU_MIPS32_R2
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from release 5 such as
	  support for Extended Physical Addressing (XPA).

config CPU_MIPS32_R5_XPA
	bool "Extended Physical Addressing (XPA)"
	depends on CPU_MIPS32_R5_FEATURES
	depends on !EVA
	depends on !PAGE_SIZE_4KB
	depends on SYS_SUPPORTS_HIGHMEM
	select XPA
	select HIGHMEM
1824
	select PHYS_ADDR_T_64BIT
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	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  If unsure, say 'N' here.

1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860
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

1861 1862 1863 1864
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1865
	select HAVE_KERNEL_LZ4
1866
	select HAVE_KERNEL_LZMA
1867
	select HAVE_KERNEL_LZO
1868
	select HAVE_KERNEL_XZ
1869 1870 1871 1872 1873

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1874 1875 1876 1877
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

1878 1879 1880 1881 1882
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1883
	select CPU_SUPPORTS_HUGEPAGES
1884
	select ARCH_HAS_PHYS_TO_DMA
1885
	select CPU_HAS_LOAD_STORE_LR
1886

1887 1888 1889
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
1890
	select CPU_MIPSR2
1891
	select CPU_HAS_PREFETCH
1892
	select CPU_HAS_LOAD_STORE_LR
1893 1894
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1895
	select CPU_SUPPORTS_CPUFREQ
1896

1897
config CPU_BMIPS32_3300
1898
	select SMP_UP if SMP
1899
	bool
1900 1901 1902 1903 1904 1905 1906 1907

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1908
	select MIPS_L1_CACHE_SHIFT_6
1909 1910
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1911
	select CPU_HAS_RIXI
1912 1913 1914 1915

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1916
	select MIPS_L1_CACHE_SHIFT_7
1917 1918
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1919
	select CPU_HAS_RIXI
1920

1921 1922 1923
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ
1924
	select CPU_HAS_RIXI
1925

1926
config SYS_HAS_CPU_LOONGSON2E
1927 1928
	bool

1929 1930
config SYS_HAS_CPU_LOONGSON2F
	bool
1931 1932
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1933
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1934

1935 1936 1937
config SYS_HAS_CPU_LOONGSON1B
	bool

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config SYS_HAS_CPU_LOONGSON1C
	bool

1941 1942 1943 1944 1945 1946
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1947 1948 1949
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1952
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1953

1954 1955
config SYS_HAS_CPU_MIPS32_R6
	bool
1956
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1957

1958 1959 1960 1961 1962 1963
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1964 1965
config SYS_HAS_CPU_MIPS64_R6
	bool
1966
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1967

1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991
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

1992 1993 1994
config SYS_HAS_CPU_R5500
	bool

1995 1996 1997 1998 1999 2000 2001 2002
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R8000
	bool

config SYS_HAS_CPU_R10000
	bool
2003
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2004 2005 2006 2007 2008 2009 2010

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2011 2012 2013
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2014
config SYS_HAS_CPU_BMIPS
2015 2016
	bool

2017
config SYS_HAS_CPU_BMIPS32_3300
2018
	bool
2019
	select SYS_HAS_CPU_BMIPS
2020 2021 2022

config SYS_HAS_CPU_BMIPS4350
	bool
2023
	select SYS_HAS_CPU_BMIPS
2024 2025 2026

config SYS_HAS_CPU_BMIPS4380
	bool
2027
	select SYS_HAS_CPU_BMIPS
2028 2029 2030

config SYS_HAS_CPU_BMIPS5000
	bool
2031
	select SYS_HAS_CPU_BMIPS
2032
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2033

2034 2035 2036
config SYS_HAS_CPU_XLR
	bool

2037 2038 2039
config SYS_HAS_CPU_XLP
	bool

2040 2041 2042 2043
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2044 2045
config WEAK_ORDERING
	bool
2046 2047 2048 2049 2050 2051 2052

#
# 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
2053 2054 2055
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2057 2058 2059
#
config CPU_MIPS32
	bool
2060
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2061 2062 2063

config CPU_MIPS64
	bool
2064
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2065 2066

#
2067
# These indicate the revision of the architecture
2068 2069 2070 2071 2072 2073 2074
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2075
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2076
	select CPU_HAS_RIXI
2077
	select MIPS_SPRAM
2078

2079 2080 2081
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2082
	select CPU_HAS_RIXI
2083
	select HAVE_ARCH_BITREVERSE
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2084
	select MIPS_ASID_BITS_VARIABLE
2085
	select MIPS_CRC_SUPPORT
2086
	select MIPS_SPRAM
2087

2088 2089 2090 2091 2092 2093 2094 2095 2096 2097
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
	default 6 if CPU_MIPSR6
	default 0
	help
	  Reflects the ISA revision being targeted by the kernel build. This
	  is effectively the Kconfig equivalent of MIPS_ISA_REV.

2098 2099 2100
config EVA
	bool

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config XPA
	bool

2104 2105 2106 2107 2108 2109 2110 2111
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2112 2113 2114 2115
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2116 2117
config CPU_SUPPORTS_HUGEPAGES
	bool
2118 2119
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
2120 2121
config MIPS_PGD_C0_CONTEXT
	bool
2122
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2123

2124 2125 2126 2127
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2128 2129
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2130

2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146
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.
2147

2148 2149 2150 2151 2152 2153 2154 2155
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

2156 2157
config KVM_GUEST
	bool "KVM Guest Kernel"
2158
	depends on BROKEN_ON_SMP
2159
	help
2160 2161
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2162

2163 2164
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2165
	depends on KVM_GUEST
2166
	default 100
2167
	help
2168 2169 2170
	  Set this to non-zero if building a guest kernel for KVM to skip RTC
	  emulation when determining guest CPU Frequency. Instead, the guest's
	  timer frequency is specified directly.
2171

2172 2173 2174 2175
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2176 2177 2178 2179 2180 2181 2182
	  Support a maximum at least 48 bits of application virtual
	  memory.  Default is 40 bits or less, depending on the CPU.
	  For page sizes 16k and above, this option results in a small
	  memory overhead for page tables.  For 4k page size, a fourth
	  level of page tables is added which imposes both a memory
	  overhead as well as slower TLB fault handling.

2183 2184
	  If unsure, say N.

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
2191
	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
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2192
	help
2193 2194 2195 2196
	  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.
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config PAGE_SIZE_8KB
	bool "8kB"
2200
	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2201
	depends on !MIPS_VA_BITS_48
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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
2205 2206
	  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"
2210
	depends on !CPU_R3000 && !CPU_TX39XX
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2211 2212 2213
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2214 2215
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2216

2217 2218 2219
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2220
	depends on !MIPS_VA_BITS_48
2221 2222 2223 2224 2225 2226
	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"
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	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
2234
	  writing this option is still high experimental.
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endchoice

2238 2239
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2240 2241 2242 2243 2244 2245
	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261
	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

2269 2270 2271 2272 2273 2274 2275
#
# 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
2293
	bool
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2295 2296
config CPU_GENERIC_DUMP_TLB
	bool
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	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2298

2299
config MIPS_FP_SUPPORT
2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312
	bool "Floating Point support" if EXPERT
	default y
	help
	  Select y to include support for floating point in the kernel
	  including initialization of FPU hardware, FP context save & restore
	  and emulation of an FPU where necessary. Without this support any
	  userland program attempting to use floating point instructions will
	  receive a SIGILL.

	  If you know that your userland will not attempt to use floating point
	  instructions then you can say n here to shrink the kernel a little.

	  If unsure, say y.
2313

2314 2315
config CPU_R2300_FPU
	bool
2316
	depends on MIPS_FP_SUPPORT
2317 2318
	default y if CPU_R3000 || CPU_TX39XX

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config CPU_R4K_FPU
	bool
2321
	depends on MIPS_FP_SUPPORT
2322
	default y if !CPU_R2300_FPU
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2324 2325 2326 2327
config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

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config MIPS_MT_SMP
2329
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2330
	default y
2331
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2332
	select CPU_MIPSR2_IRQ_VI
2333
	select CPU_MIPSR2_IRQ_EI
2334
	select SYNC_R4K
2335
	select MIPS_MT
2336
	select SMP
2337
	select SMP_UP
2338 2339
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2340
	select MIPS_PERF_SHARED_TC_COUNTERS
2341
	help
2342 2343 2344 2345 2346
	  This is a kernel model which is known as SMVP. This is supported
	  on cores with the MT ASE and uses the available VPEs to implement
	  virtual processors which supports SMP. This is equivalent to the
	  Intel Hyperthreading feature. For further information go to
	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2347

2348 2349 2350
config MIPS_MT
	bool

2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362
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

2363 2364 2365
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
2370

2371 2372
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2373
	depends on CPU_MIPSR6
2374
	depends on MIPS_FP_SUPPORT
2375 2376 2377 2378
	default y
	help
	  Choose this option if you want to run non-R6 MIPS userland code.
	  Even if you say 'Y' here, the emulator will still be disabled by
2379
	  default. You can enable it using the 'mipsr2emu' kernel option.
2380 2381 2382
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2383 2384 2385 2386 2387 2388 2389
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2390 2391
config MIPS_VPE_LOADER
	bool "VPE loader support."
2392
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2393 2394 2395 2396 2397 2398
	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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2400 2401 2402 2403 2404
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2405 2406 2407 2408 2409
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2410 2411 2412 2413 2414 2415 2416 2417 2418 2419 2420
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.

config MIPS_VPE_APSP_API
2421 2422
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2423

2424 2425 2426 2427 2428
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2429 2430 2431 2432 2433
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2434
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2436
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2437
	select SMP
2438
	select SYNC_R4K
2439
	select SYS_SUPPORTS_SMP
2440 2441 2442
	select WEAK_ORDERING
	default n
	help
2443 2444 2445
	  Select this if you are using a bootloader which implements the "CMP
	  framework" protocol (ie. YAMON) and want your kernel to make use of
	  its ability to start secondary CPUs.
2446

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	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
	  instead of this.

2450 2451
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2452
	depends on SYS_SUPPORTS_MIPS_CPS
2453
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2455 2456
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2458
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2459 2460 2461 2462 2463 2464 2465 2466 2467
	select SYS_SUPPORTS_SMP
	select WEAK_ORDERING
	help
	  Select this if you wish to run an SMP kernel across multiple cores
	  within a MIPS Coherent Processing System. When this option is
	  enabled the kernel will probe for other cores and boot them with
	  no external assistance. It is safe to enable this when hardware
	  support is unavailable.

2468
config MIPS_CPS_PM
2469
	depends on MIPS_CPS
2470 2471
	bool

2472 2473
config MIPS_CM
	bool
2474
	select MIPS_CPC
2475

2476 2477
config MIPS_CPC
	bool
2478

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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

2489 2490 2491 2492 2493 2494 2495 2496
choice
	prompt "SmartMIPS or microMIPS ASE support"

config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
	bool "None"
	help
	  Select this if you want neither microMIPS nor SmartMIPS support

2497 2498
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2499
	bool "SmartMIPS"
2500 2501 2502 2503 2504 2505 2506 2507 2508
	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.

2509
config CPU_MICROMIPS
2510
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2511
	bool "microMIPS"
2512 2513 2514 2515
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2516 2517
endchoice

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config CPU_HAS_MSA
2519
	bool "Support for the MIPS SIMD Architecture"
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2520
	depends on CPU_SUPPORTS_MSA
2521
	depends on MIPS_FP_SUPPORT
2522
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2526 2527 2528 2529 2530
	  is enabled the kernel will support allocating & switching MSA
	  vector register contexts. If you know that your kernel will only be
	  running on CPUs which do not support MSA or that your userland will
	  not be making use of it then you may wish to say N here to reduce
	  the size & complexity of your kernel.
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	  If unsure, say Y.

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config CPU_HAS_WB
2535
	bool
2536

2537 2538 2539
config XKS01
	bool

2540 2541 2542
config CPU_HAS_RIXI
	bool

2543 2544 2545 2546 2547 2548 2549
config CPU_HAS_LOAD_STORE_LR
	bool
	help
	  CPU has support for unaligned load and store instructions:
	  LWL, LWR, SWL, SWR (Load/store word left/right).
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).

2550 2551 2552
#
# Vectored interrupt mode is an R2 feature
#
2553
config CPU_MIPSR2_IRQ_VI
2554
	bool
2555

2556 2557 2558
#
# Extended interrupt mode is an R2 feature
#
2559
config CPU_MIPSR2_IRQ_EI
2560
	bool
2561

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2567 2568 2569 2570 2571 2572 2573 2574 2575 2576 2577 2578 2579
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2580 2581 2582 2583 2584 2585 2586 2587
config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 4 if CPU_R8000
	default 0

config MIPS_ASID_BITS
	int
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	default 0 if MIPS_ASID_BITS_VARIABLE
2589 2590 2591
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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2592 2593 2594
config MIPS_ASID_BITS_VARIABLE
	bool

2595 2596 2597
config MIPS_CRC_SUPPORT
	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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2610 2611 2612
#
config HIGHMEM
	bool "High Memory Support"
2613
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
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config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool
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2620

2621 2622 2623
config SYS_SUPPORTS_SMARTMIPS
	bool

2624 2625 2626
config SYS_SUPPORTS_MICROMIPS
	bool

2627 2628 2629 2630 2631 2632 2633
config SYS_SUPPORTS_MIPS16
	bool
	help
	  This option must be set if a kernel might be executed on a MIPS16-
	  enabled CPU even if MIPS16 is not actually being used.  In other
	  words, it makes the kernel MIPS16-tolerant.

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2634 2635 2636
config CPU_SUPPORTS_MSA
	bool

2637 2638
config ARCH_FLATMEM_ENABLE
	def_bool y
2639
	depends on !NUMA && !CPU_LOONGSON2
2640

2641 2642 2643 2644
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2645
	  Say Y to support efficient handling of discontiguous physical memory,
2646 2647
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
2648
	  See <file:Documentation/vm/numa.rst> for more.
2649

2650 2651
config ARCH_SPARSEMEM_ENABLE
	bool
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Atsushi Nemoto 已提交
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	select SPARSEMEM_STATIC
2653

2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666
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

2667 2668
config RELOCATABLE
	bool "Relocatable kernel"
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	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2670 2671 2672 2673 2674 2675
	help
	  This builds a kernel image that retains relocation information
	  so it can be loaded someplace besides the default 1MB.
	  The relocations make the kernel binary about 15% larger,
	  but are discarded at runtime

2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691
config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00100000"
	---help---
	  A table of relocation data will be appended to the kernel binary
	  and parsed at boot to fix up the relocated kernel.

	  This option allows the amount of space reserved for the table to be
	  adjusted, although the default of 1Mb should be ok in most cases.

	  The build will fail and a valid size suggested if this is too small.

	  If unsure, leave at the default value.

2692 2693 2694 2695
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2696 2697 2698 2699
	  Randomizes the physical and virtual address at which the
	  kernel image is loaded, as a security feature that
	  deters exploit attempts relying on knowledge of the location
	  of kernel internals.
2700

2701
	  Entropy is generated using any coprocessor 0 registers available.
2702

2703
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2704

2705
	  If unsure, say N.
2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719 2720 2721

config RANDOMIZE_BASE_MAX_OFFSET
	hex "Maximum kASLR offset" if EXPERT
	depends on RANDOMIZE_BASE
	range 0x0 0x40000000 if EVA || 64BIT
	range 0x0 0x08000000
	default "0x01000000"
	---help---
	  When kASLR is active, this provides the maximum offset that will
	  be applied to the kernel image. It should be set according to the
	  amount of physical RAM available in the target system minus
	  PHYSICAL_START and must be a power of 2.

	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
	  EVA or 64-bit. The default is 16Mb.

Y
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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2727 2728
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2729
	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2730 2731 2732 2733 2734
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

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config SMP
	bool "Multi-Processing support"
2737 2738
	depends on SYS_SUPPORTS_SMP
	help
L
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2739
	  This enables support for systems with more than one CPU. If you have
2740 2741
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2742

2743
	  If you say N here, the kernel will run on uni- and multiprocessor
L
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2744 2745
	  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,
2746
	  uniprocessor machines. On a uniprocessor machine, the kernel
L
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2747 2748 2749 2750 2751
	  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.

A
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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
L
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2754 2755 2756

	  If you don't know what to do here, say N.

2757 2758 2759 2760 2761 2762 2763 2764 2765 2766
config HOTPLUG_CPU
	bool "Support for hot-pluggable CPUs"
	depends on SMP && 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.

2767 2768 2769
config SMP_UP
	bool

2770 2771 2772
config SYS_SUPPORTS_MIPS_CMP
	bool

2773 2774 2775
config SYS_SUPPORTS_MIPS_CPS
	bool

2776 2777 2778
config SYS_SUPPORTS_SMP
	bool

2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793
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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2794
config NR_CPUS
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2795 2796
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2797
	depends on SMP
2798 2799 2800 2801 2802
	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
2807 2808
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
L
Linus Torvalds 已提交
2809 2810

	  This is purely to save memory - each supported CPU adds
2811 2812 2813
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
L
Linus Torvalds 已提交
2814

2815 2816
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2817 2818 2819 2820 2821 2822 2823 2824 2825

config MIPS_NR_CPU_NR_MAP_1024
	bool

config MIPS_NR_CPU_NR_MAP
	int
	depends on SMP
	default 1024 if MIPS_NR_CPU_NR_MAP_1024
	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2826

2827 2828 2829 2830 2831 2832 2833 2834
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2835
	  Allows the configuration of the timer frequency.
2836

P
Paul Burton 已提交
2837 2838 2839
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2840
	config HZ_48
2841
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862

	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

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Paul Burton 已提交
2863 2864 2865
config SYS_SUPPORTS_24HZ
	bool

2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888
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
P
Paul Burton 已提交
2889 2890 2891 2892 2893 2894 2895
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2896 2897 2898 2899
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
P
Paul Burton 已提交
2900
	default 24 if HZ_24
2901 2902 2903 2904 2905 2906 2907 2908
	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

D
Deng-Cheng Zhu 已提交
2909 2910 2911
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2912
config KEXEC
2913
	bool "Kexec system call"
2914
	select KEXEC_CORE
2915 2916 2917
	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
2918
	  but it is independent of the system firmware.   And like a reboot
2919 2920
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2921
	  The name comes from the similarity to the exec system call.
2922 2923 2924

	  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
2925 2926 2927
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2928

R
Ralf Baechle 已提交
2929
config CRASH_DUMP
2930 2931
	bool "Kernel crash dumps"
	help
R
Ralf Baechle 已提交
2932 2933 2934 2935 2936 2937 2938 2939 2940
	  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
2941
	hex "Physical address where the kernel is loaded"
2942
	default "0xffffffff84000000"
2943 2944
	depends on CRASH_DUMP
	help
R
Ralf Baechle 已提交
2945 2946 2947 2948 2949 2950
	  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).

2951 2952
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2953
	depends on PROC_FS
2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 2966 2967
	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.

2968
config MIPS_O32_FP64_SUPPORT
2969
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2970 2971 2972 2973 2974 2975 2976 2977 2978 2979 2980 2981
	depends on 32BIT || MIPS32_O32
	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.

2982 2983 2984 2985 2986 2987 2988 2989
	  Although binutils currently supports use of this flag the details
	  concerning its effect upon the O32 ABI in userland are still being
	  worked on. In order to avoid userland becoming dependant upon current
	  behaviour before the details have been finalised, this option should
	  be considered experimental and only enabled by those working upon
	  said details.

	  If unsure, say N.
2990

2991
config USE_OF
2992
	bool
2993
	select OF
2994
	select OF_EARLY_FLATTREE
2995
	select IRQ_DOMAIN
2996

2997 2998 2999
config UHI_BOOT
	bool

3000 3001 3002
config BUILTIN_DTB
	bool

3003
choice
3004
	prompt "Kernel appended dtb support" if USE_OF
3005 3006 3007 3008 3009 3010 3011
	default MIPS_NO_APPENDED_DTB

	config MIPS_NO_APPENDED_DTB
		bool "None"
		help
		  Do not enable appended dtb support.

3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025
	config MIPS_ELF_APPENDED_DTB
		bool "vmlinux"
		help
		  With this option, the boot code will look for a device tree binary
		  DTB) included in the vmlinux ELF section .appended_dtb. By default
		  it is empty and the DTB can be appended using binutils command
		  objcopy:

		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux

		  This is meant as a backward compatiblity convenience for those
		  systems with a bootloader that can't be upgraded to accommodate
		  the documented boot protocol using a device tree.

3026
	config MIPS_RAW_APPENDED_DTB
3027
		bool "vmlinux.bin or vmlinuz.bin"
3028 3029
		help
		  With this option, the boot code will look for a device tree binary
3030
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043
		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).

		  This is meant as a backward compatibility convenience for those
		  systems with a bootloader that can't be upgraded to accommodate
		  the documented boot protocol using a device tree.

		  Beware that there is very little in terms of protection against
		  this option being confused by leftover garbage in memory that might
		  look like a DTB header after a reboot if no actual DTB is appended
		  to vmlinux.bin.  Do not leave this option active in a production kernel
		  if you don't intend to always append a DTB.
endchoice

3044 3045
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3046
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3047
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3048
					 !CAVIUM_OCTEON_SOC
3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060
	default MIPS_CMDLINE_FROM_BOOTLOADER

	config MIPS_CMDLINE_FROM_DTB
		depends on USE_OF
		bool "Dtb kernel arguments if available"

	config MIPS_CMDLINE_DTB_EXTEND
		depends on USE_OF
		bool "Extend dtb kernel arguments with bootloader arguments"

	config MIPS_CMDLINE_FROM_BOOTLOADER
		bool "Bootloader kernel arguments if available"
3061 3062 3063 3064

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3065 3066
endchoice

3067 3068
endmenu

3069 3070 3071 3072 3073 3074 3075 3076
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

A
Aaro Koskinen 已提交
3077 3078 3079 3080
config HAVE_LATENCYTOP_SUPPORT
	bool
	default y

3081 3082
config PGTABLE_LEVELS
	int
3083
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3084 3085 3086
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3087 3088 3089
config MIPS_AUTO_PFN_OFFSET
	bool

L
Linus Torvalds 已提交
3090 3091
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3092
config PCI_DRIVERS_GENERIC
3093
	select PCI_DOMAINS_GENERIC if PCI
3094 3095 3096 3097 3098
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3099
	select PCI_DOMAINS if PCI
L
Linus Torvalds 已提交
3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111 3112

#
# 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 TC
	bool "TURBOchannel support"
	depends on MACH_DECSTATION
	help
3113 3114 3115 3116 3117 3118 3119 3120
	  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>
L
Linus Torvalds 已提交
3121 3122 3123 3124 3125

config MMU
	bool
	default y

3126 3127 3128 3129 3130 3131 3132 3133 3134
config ARCH_MMAP_RND_BITS_MIN
	default 12 if 64BIT
	default 8

config ARCH_MMAP_RND_BITS_MAX
	default 18 if 64BIT
	default 15

config ARCH_MMAP_RND_COMPAT_BITS_MIN
3135
	default 8
3136 3137

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3138
	default 15
3139

3140 3141
config I8253
	bool
3142
	select CLKSRC_I8253
3143
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3144
	select MIPS_EXTERNAL_TIMER
3145

3146 3147 3148
config ZONE_DMA
	bool

3149 3150 3151
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3152 3153 3154 3155 3156 3157
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3158
	bool
L
Linus Torvalds 已提交
3159 3160 3161 3162

config COMPAT
	bool

3163 3164 3165
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3166 3167
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3168 3169 3170 3171 3172
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3173 3174 3175 3176 3177 3178 3179 3180 3181
	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"
3182
	depends on 64BIT
3183
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3184 3185 3186
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3187 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197
	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
R
Ralf Baechle 已提交
3198
	select ELFCORE
L
Linus Torvalds 已提交
3199

3200 3201
menu "Power management options"

W
Wu Zhangjin 已提交
3202 3203
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3204
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3205

J
Johannes Berg 已提交
3206 3207
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3208
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3209

3210
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3211

L
Linus Torvalds 已提交
3212 3213
endmenu

3214 3215 3216 3217
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3218 3219

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3220 3221
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3222

P
Paul Burton 已提交
3223 3224 3225 3226
source "drivers/cpuidle/Kconfig"

endmenu

3227 3228
source "drivers/firmware/Kconfig"

3229
source "arch/mips/kvm/Kconfig"