Kconfig 80.4 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_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_GETTIMEOFDAY
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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
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	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
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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_FAST_GUP
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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 HAVE_GENERIC_VDSO
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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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	select ARCH_HAS_PTE_SPECIAL
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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 CPU_SUPPORTS_HUGEPAGES
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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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Steven J. Hill 已提交
526
	select SYS_HAS_CPU_MIPS32_R5
527
	select SYS_HAS_CPU_MIPS32_R6
528
	select SYS_HAS_CPU_MIPS64_R1
529
	select SYS_HAS_CPU_MIPS64_R2
530
	select SYS_HAS_CPU_MIPS64_R6
531 532
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
533 534
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
535
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
536
	select SYS_SUPPORTS_HIGHMEM
537
	select SYS_SUPPORTS_LITTLE_ENDIAN
538
	select SYS_SUPPORTS_MICROMIPS
539
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
540
	select SYS_SUPPORTS_MIPS_CMP
541
	select SYS_SUPPORTS_MIPS_CPS
542
	select SYS_SUPPORTS_MULTITHREADING
543
	select SYS_SUPPORTS_RELOCATABLE
544
	select SYS_SUPPORTS_SMARTMIPS
545
	select SYS_SUPPORTS_VPE_LOADER
546
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
547
	select USE_OF
548
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
549
	help
550
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
551 552
	  board.

553 554 555 556 557 558 559 560
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.

561 562 563
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
564
	select HAVE_PCI
565 566
	help
	  This enables support for the NEC Electronics Mark-eins boards.
567

568
config MACH_VR41XX
569
	bool "NEC VR4100 series based machines"
570
	select CEVT_R4K
571
	select CSRC_R4K
572
	select SYS_HAS_CPU_VR41XX
573
	select SYS_SUPPORTS_MIPS16
574
	select GPIOLIB
575

576 577 578 579
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
580
	  Support for NXP Semiconductors STB220 Development Board.
581 582 583 584 585 586

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
587
	  Support for NXP Semiconductors STB225 Development Board.
588

M
Marc St-Jean 已提交
589 590
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
591 592
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
593 594 595 596 597 598 599 600
	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
601
	select SYS_SUPPORTS_MIPS16
602
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
603 604
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
605 606
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
607 608 609 610 611 612
	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
613 614 615 616 617 618
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
619
	select IRQ_MIPS_CPU
J
John Crispin 已提交
620 621 622 623 624
	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
625
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
626 627
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
628 629
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
630

L
Linus Torvalds 已提交
631
config SGI_IP22
632
	bool "SGI IP22 (Indy/Indigo2)"
633 634
	select FW_ARC
	select FW_ARC32
635
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
636
	select BOOT_ELF32
637
	select CEVT_R4K
638
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
639
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
640
	select DMA_NONCOHERENT
641
	select HAVE_EISA
642
	select I8253
643
	select I8259
L
Linus Torvalds 已提交
644
	select IP22_CPU_SCACHE
645
	select IRQ_MIPS_CPU
646
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
647 648
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
649
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
650 651 652
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
653
	select SWAP_IO_SPACE
654 655
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
656 657 658 659 660 661 662 663
	#
	# 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
664 665
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
666
	select SYS_SUPPORTS_BIG_ENDIAN
667
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
668 669 670 671 672 673
	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
674
	bool "SGI IP27 (Origin200/2000)"
675
	select ARCH_HAS_PHYS_TO_DMA
676 677
	select FW_ARC
	select FW_ARC64
678
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
679
	select DEFAULT_SGI_PARTITION
680
	select SYS_HAS_EARLY_PRINTK
681
	select HAVE_PCI
682
	select IRQ_MIPS_CPU
683
	select IRQ_DOMAIN_HIERARCHY
684
	select NR_CPUS_DEFAULT_64
685 686
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
687
	select SYS_HAS_CPU_R10000
688
	select SYS_SUPPORTS_64BIT_KERNEL
689
	select SYS_SUPPORTS_BIG_ENDIAN
690
	select SYS_SUPPORTS_NUMA
691
	select SYS_SUPPORTS_SMP
692
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
693 694 695 696 697
	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
698
config SGI_IP28
699
	bool "SGI IP28 (Indigo2 R10k)"
700 701
	select FW_ARC
	select FW_ARC64
702
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
703 704 705 706 707 708
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
709
	select IRQ_MIPS_CPU
710
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
711 712 713 714
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
715
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
716 717 718 719 720
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
721 722 723 724 725 726 727 728
	#
	# 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
729 730
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
731
	select MIPS_L1_CACHE_SHIFT_7
732 733 734
	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
735

L
Linus Torvalds 已提交
736
config SGI_IP32
737
	bool "SGI IP32 (O2)"
738
	select ARCH_HAS_PHYS_TO_DMA
739 740
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
741
	select BOOT_ELF32
742
	select CEVT_R4K
743
	select CSRC_R4K
L
Linus Torvalds 已提交
744
	select DMA_NONCOHERENT
745
	select HAVE_PCI
746
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
747 748
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
749 750 751
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
752
	select SYS_HAS_CPU_NEVADA
753
	select SYS_SUPPORTS_64BIT_KERNEL
754 755
	select SYS_SUPPORTS_BIG_ENDIAN
	help
756
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
757

758 759
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
760
	select BOOT_ELF32
761
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
762
	select SWAP_IO_SPACE
763
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
764 765 766
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

767 768
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
769
	select BOOT_ELF32
770
	select SIBYTE_BCM1120
771
	select SWAP_IO_SPACE
772
	select SYS_HAS_CPU_SB1
773
	select SYS_SUPPORTS_BIG_ENDIAN
774
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
775

776 777
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
778
	select BOOT_ELF32
779
	select SIBYTE_BCM1125
780
	select SWAP_IO_SPACE
781
	select SYS_HAS_CPU_SB1
782
	select SYS_SUPPORTS_BIG_ENDIAN
783
	select SYS_SUPPORTS_HIGHMEM
784
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
785

786
config SIBYTE_RHONE
787
	bool "Sibyte BCM91125E-Rhone"
788 789 790
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
791
	select SYS_HAS_CPU_SB1
792 793
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
794

795 796
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
797
	select BOOT_ELF32
798
	select HAVE_PATA_PLATFORM
799
	select SIBYTE_SB1250
800
	select SWAP_IO_SPACE
801
	select SYS_HAS_CPU_SB1
802
	select SYS_SUPPORTS_BIG_ENDIAN
803
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
804
	select SYS_SUPPORTS_LITTLE_ENDIAN
805
	select ZONE_DMA32 if 64BIT
806
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
807

808 809
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
810
	select BOOT_ELF32
811
	select HAVE_PATA_PLATFORM
812 813
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
814
	select SYS_HAS_CPU_SB1
815 816 817
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
818
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
819

820 821
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
822 823 824
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
825
	select SYS_HAS_CPU_SB1
826 827
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
828
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
829

830 831
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
832
	select BOOT_ELF32
833 834
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
835
	select SWAP_IO_SPACE
836
	select SYS_HAS_CPU_SB1
837
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
838
	select SYS_SUPPORTS_HIGHMEM
839
	select SYS_SUPPORTS_LITTLE_ENDIAN
840
	select ZONE_DMA32 if 64BIT
841
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
842

843 844
config SNI_RM
	bool "SNI RM200/300/400"
845 846
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
847
	select FW_SNIPROM if CPU_BIG_ENDIAN
848
	select ARCH_MAY_HAVE_PC_FDC
849
	select ARCH_MIGHT_HAVE_PC_PARPORT
850
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
851
	select BOOT_ELF32
852
	select CEVT_R4K
853
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
854
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
855 856
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
857
	select HAVE_EISA
858
	select HAVE_PCSPKR_PLATFORM
859
	select HAVE_PCI
860
	select IRQ_MIPS_CPU
861
	select I8253
L
Linus Torvalds 已提交
862 863
	select I8259
	select ISA
864
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
865
	select SYS_HAS_CPU_R4X00
866
	select SYS_HAS_CPU_R5000
867
	select SYS_HAS_CPU_R10000
868
	select R5000_CPU_SCACHE
869
	select SYS_HAS_EARLY_PRINTK
870
	select SYS_SUPPORTS_32BIT_KERNEL
871
	select SYS_SUPPORTS_64BIT_KERNEL
872
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
873
	select SYS_SUPPORTS_HIGHMEM
874
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
875
	help
876 877
	  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
878 879 880
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

881 882
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
883

884 885
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
886

887 888 889 890 891
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
892
	select HAVE_PCI
893
	select IRQ_MIPS_CPU
894 895 896 897 898
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
899
	select GPIOLIB
900
	select MIPS_L1_CACHE_SHIFT_4
901 902 903 904
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

905 906
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
907
	select CEVT_R4K
908
	select ARCH_HAS_PHYS_TO_DMA
909
	select HAVE_RAPIDIO
910
	select PHYS_ADDR_T_64BIT
911 912
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
913
	select EDAC_SUPPORT
914
	select EDAC_ATOMIC_SCRUB
915 916
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
917
	select SYS_HAS_EARLY_PRINTK
918
	select SYS_HAS_CPU_CAVIUM_OCTEON
919
	select HAVE_PCI
D
David Daney 已提交
920
	select ZONE_DMA32
921
	select HOLES_IN_ZONE
922
	select GPIOLIB
923 924 925 926
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
927 928
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
929
	select BUILTIN_DTB
930
	select MTD_COMPLEX_MAPPINGS
931
	select SWIOTLB
S
Steven J. Hill 已提交
932
	select SYS_SUPPORTS_RELOCATABLE
933 934 935 936 937 938 939 940 941 942 943 944 945
	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.

946 947 948 949 950 951
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
952
	select HAVE_PCI
953 954 955
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
956
	select PHYS_ADDR_T_64BIT
957 958 959 960 961
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
962
	select IRQ_MIPS_CPU
963
	select ZONE_DMA32 if 64BIT
964 965
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
966 967
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
968 969 970 971
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

972 973 974 975 976 977
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
978
	select HAVE_PCI
979 980
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
981
	select PHYS_ADDR_T_64BIT
982
	select GPIOLIB
983 984 985 986 987 988
	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
989
	select IRQ_MIPS_CPU
990
	select ZONE_DMA32 if 64BIT
991 992
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
993
	select USE_OF
994 995
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
996 997 998 999
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012
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
1013
	select HAVE_PCI
1014 1015 1016 1017
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1018
endchoice
L
Linus Torvalds 已提交
1019

R
Ralf Baechle 已提交
1020
source "arch/mips/alchemy/Kconfig"
1021
source "arch/mips/ath25/Kconfig"
1022
source "arch/mips/ath79/Kconfig"
1023
source "arch/mips/bcm47xx/Kconfig"
1024
source "arch/mips/bcm63xx/Kconfig"
1025
source "arch/mips/bmips/Kconfig"
1026
source "arch/mips/generic/Kconfig"
1027
source "arch/mips/jazz/Kconfig"
1028
source "arch/mips/jz4740/Kconfig"
1029
source "arch/mips/lantiq/Kconfig"
1030
source "arch/mips/lasat/Kconfig"
1031
source "arch/mips/pic32/Kconfig"
1032
source "arch/mips/pistachio/Kconfig"
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source "arch/mips/pmcs-msp71xx/Kconfig"
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1034
source "arch/mips/ralink/Kconfig"
1035
source "arch/mips/sgi-ip27/Kconfig"
1036
source "arch/mips/sibyte/Kconfig"
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1037
source "arch/mips/txx9/Kconfig"
1038
source "arch/mips/vr41xx/Kconfig"
1039
source "arch/mips/cavium-octeon/Kconfig"
1040 1041
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1042
source "arch/mips/netlogic/Kconfig"
1043
source "arch/mips/paravirt/Kconfig"
1044

1045 1046
endmenu

1047 1048 1049 1050
config GENERIC_HWEIGHT
	bool
	default y

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1051 1052 1053 1054
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1055
config SCHED_OMIT_FRAME_POINTER
1056 1057 1058
	bool
	default y

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1059 1060 1061
#
# Select some configuration options automatically based on user selections.
#
1062
config FW_ARC
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	bool

1065 1066 1067
config ARCH_MAY_HAVE_PC_FDC
	bool

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config BOOT_RAW
	bool

1071 1072 1073
config CEVT_BCM1480
	bool

1074 1075 1076
config CEVT_DS1287
	bool

1077 1078 1079
config CEVT_GT641XX
	bool

1080 1081 1082
config CEVT_R4K
	bool

1083 1084 1085
config CEVT_SB1250
	bool

1086 1087 1088
config CEVT_TXX9
	bool

1089 1090 1091
config CSRC_BCM1480
	bool

1092 1093 1094
config CSRC_IOASIC
	bool

1095 1096 1097
config CSRC_R4K
	bool

1098 1099 1100
config CSRC_SB1250
	bool

1101 1102 1103
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1104
config GPIO_TXX9
1105
	select GPIOLIB
1106 1107
	bool

1108
config FW_CFE
1109 1110
	bool

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config ARCH_SUPPORTS_UPROBES
	bool

1114
config DMA_MAYBE_COHERENT
1115
	select ARCH_HAS_DMA_COHERENCE_H
1116 1117 1118
	select DMA_NONCOHERENT
	bool

1119 1120
config DMA_PERDEV_COHERENT
	bool
1121
	select ARCH_HAS_SETUP_DMA_OPS
1122
	select DMA_NONCOHERENT
1123

1124 1125
config DMA_NONCOHERENT
	bool
1126
	select ARCH_HAS_DMA_MMAP_PGPROT
1127
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1128
	select ARCH_HAS_UNCACHED_SEGMENT
1129
	select NEED_DMA_MAP_STATE
1130
	select ARCH_HAS_DMA_COHERENT_TO_PFN
1131
	select DMA_NONCOHERENT_CACHE_SYNC
1132

1133
config SYS_HAS_EARLY_PRINTK
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	bool

1136
config SYS_SUPPORTS_HOTPLUG_CPU
1137 1138
	bool

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1139 1140 1141 1142 1143 1144
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1145 1146 1147
config MIPS_NILE4
	bool

1148 1149 1150
config SYNC_R4K
	bool

1151 1152 1153
config MIPS_MACHINE
	def_bool n

1154
config NO_IOPORT_MAP
1155 1156
	def_bool n

1157 1158
config GENERIC_CSUM
	bool
1159
	default y if !CPU_HAS_LOAD_STORE_LR
1160

1161 1162 1163
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1164
	select ISA_DMA_API
1165

1166 1167
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1168
	select GENERIC_ISA_DMA
1169

1170 1171 1172
config ISA_DMA_API
	bool

1173 1174 1175
config HOLES_IN_ZONE
	bool

1176 1177 1178
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1179 1180 1181
	  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.
1182

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1183 1184 1185 1186 1187 1188 1189 1190 1191
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


1192
#
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1193
# Endianness selection.  Sufficiently obscure so many users don't know what to
1194 1195 1196 1197
# 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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1198
	prompt "Endianness selection"
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1199 1200
	help
	  Some MIPS machines can be configured for either little or big endian
1201
	  byte order. These modes require different kernels and a different
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	  Linux distribution.  In general there is one preferred byteorder for a
1203
	  particular system but some systems are just as commonly used in the
1204
	  one or the other endianness.
1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215

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

1216 1217 1218
config EXPORT_UASM
	bool

1219 1220 1221
config SYS_SUPPORTS_APM_EMULATION
	bool

1222 1223 1224 1225 1226
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1227

1228 1229
config SYS_SUPPORTS_HUGETLBFS
	bool
1230
	depends on CPU_SUPPORTS_HUGEPAGES
1231 1232
	default y

1233 1234 1235
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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config IRQ_CPU_RM7K
	bool

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1239 1240 1241 1242 1243 1244
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1245 1246 1247
config IRQ_TXX9
	bool

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1248 1249 1250
config IRQ_GT641XX
	bool

1251
config PCI_GT64XXX_PCI0
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1252 1253
	bool

1254 1255 1256
config PCI_XTALK_BRIDGE
	bool

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1257 1258 1259
config NO_EXCEPT_FILL
	bool

1260 1261 1262 1263 1264
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1265
	select IRQ_MIPS_CPU
1266 1267 1268 1269 1270 1271
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1272 1273 1274 1275
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1276
	select IRQ_MIPS_CPU
1277 1278 1279 1280 1281
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1282
	select SYS_SUPPORTS_MIPS16
1283 1284 1285 1286 1287 1288
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1289 1290 1291
config MIPS_SPRAM
	bool

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1292 1293 1294
config SWAP_IO_SPACE
	bool

T
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1295 1296 1297
config SGI_HAS_INDYDOG
	bool

1298 1299 1300
config SGI_HAS_HAL2
	bool

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1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315
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

1316
config FW_ARC32
1317 1318
	bool

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1319
config FW_SNIPROM
1320 1321
	bool

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1322 1323 1324
config BOOT_ELF32
	bool

1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336
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
1339
	default "7" if MIPS_L1_CACHE_SHIFT_7
1340 1341 1342
	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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Thomas Bogendoerfer 已提交
1350
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1351 1352 1353

config ARC_MEMORY
	bool
1354
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
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1355 1356 1357 1358
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1359
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
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1360 1361
	default y

1362
config FW_ARC64
L
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1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1374 1375 1376
config CPU_LOONGSON3
	bool "Loongson 3 CPU"
	depends on SYS_HAS_CPU_LOONGSON3
1377
	select ARCH_HAS_PHYS_TO_DMA
1378 1379 1380
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1381
	select CPU_HAS_LOAD_STORE_LR
1382 1383
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1384
	select MIPS_PGD_C0_CONTEXT
1385
	select MIPS_L1_CACHE_SHIFT_6
1386
	select GPIOLIB
1387
	select SWIOTLB
1388 1389 1390 1391
	help
		The Loongson 3 processor implements the MIPS64R2 instruction
		set with many extensions.

1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409
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.

1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424
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.

1425 1426 1427 1428
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1429 1430 1431 1432
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1433
	  It has an internal FPGA northbridge, which is compatible to
1434 1435 1436 1437 1438 1439
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1440
	select GPIOLIB
1441 1442 1443 1444 1445 1446 1447 1448
	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.

1449 1450 1451 1452
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
1453
	select LEDS_GPIO_REGISTER
1454 1455
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1456 1457
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1458

Y
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1459 1460 1461 1462 1463 1464 1465
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
1466 1467
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1468

1469 1470
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1471
	depends on SYS_HAS_CPU_MIPS32_R1
1472
	select CPU_HAS_PREFETCH
1473
	select CPU_HAS_LOAD_STORE_LR
R
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1474
	select CPU_SUPPORTS_32BIT_KERNEL
1475
	select CPU_SUPPORTS_HIGHMEM
R
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1476
	help
1477
	  Choose this option to build a kernel for release 1 or later of the
R
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1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488
	  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"
1489
	depends on SYS_HAS_CPU_MIPS32_R2
R
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1490
	select CPU_HAS_PREFETCH
1491
	select CPU_HAS_LOAD_STORE_LR
R
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1492
	select CPU_SUPPORTS_32BIT_KERNEL
1493
	select CPU_SUPPORTS_HIGHMEM
P
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1494
	select CPU_SUPPORTS_MSA
1495
	select HAVE_KVM
1496
	help
1497
	  Choose this option to build a kernel for release 2 or later of the
1498 1499 1500 1501 1502
	  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.

1503
config CPU_MIPS32_R6
1504
	bool "MIPS32 Release 6"
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517
	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.

1518 1519
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1520
	depends on SYS_HAS_CPU_MIPS64_R1
R
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1521
	select CPU_HAS_PREFETCH
1522
	select CPU_HAS_LOAD_STORE_LR
1523 1524
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1525
	select CPU_SUPPORTS_HIGHMEM
1526
	select CPU_SUPPORTS_HUGEPAGES
1527 1528 1529 1530 1531 1532
	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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1533 1534 1535 1536 1537 1538 1539
	  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"
1540
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1541
	select CPU_HAS_PREFETCH
1542
	select CPU_HAS_LOAD_STORE_LR
R
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1543 1544
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1545
	select CPU_SUPPORTS_HIGHMEM
1546
	select CPU_SUPPORTS_HUGEPAGES
P
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1547
	select CPU_SUPPORTS_MSA
1548
	select HAVE_KVM
R
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1549 1550 1551 1552 1553 1554
	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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1555

1556
config CPU_MIPS64_R6
1557
	bool "MIPS64 Release 6"
1558 1559 1560 1561 1562
	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
1563
	select CPU_SUPPORTS_HUGEPAGES
1564
	select CPU_SUPPORTS_MSA
1565
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1566
	select HAVE_KVM
1567 1568 1569 1570 1571 1572
	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.

L
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1573 1574
config CPU_R3000
	bool "R3000"
1575
	depends on SYS_HAS_CPU_R3000
1576
	select CPU_HAS_WB
1577
	select CPU_HAS_LOAD_STORE_LR
1578
	select CPU_SUPPORTS_32BIT_KERNEL
R
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1579
	select CPU_SUPPORTS_HIGHMEM
L
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1580 1581 1582 1583 1584 1585 1586 1587 1588 1589
	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"
1590
	depends on SYS_HAS_CPU_TX39XX
1591
	select CPU_SUPPORTS_32BIT_KERNEL
1592
	select CPU_HAS_LOAD_STORE_LR
L
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1593 1594 1595

config CPU_VR41XX
	bool "R41xx"
1596
	depends on SYS_HAS_CPU_VR41XX
1597 1598
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1599
	select CPU_HAS_LOAD_STORE_LR
L
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1600
	help
1601
	  The options selects support for the NEC VR4100 series of processors.
L
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1602 1603 1604 1605 1606 1607
	  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_R4X00
	bool "R4x00"
1608
	depends on SYS_HAS_CPU_R4X00
1609 1610
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1611
	select CPU_SUPPORTS_HUGEPAGES
1612
	select CPU_HAS_LOAD_STORE_LR
L
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1613 1614 1615 1616 1617 1618
	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1619
	depends on SYS_HAS_CPU_TX49XX
A
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1620
	select CPU_HAS_PREFETCH
1621
	select CPU_HAS_LOAD_STORE_LR
1622 1623
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1624
	select CPU_SUPPORTS_HUGEPAGES
L
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1625 1626 1627

config CPU_R5000
	bool "R5000"
1628
	depends on SYS_HAS_CPU_R5000
1629 1630
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1631
	select CPU_SUPPORTS_HUGEPAGES
1632
	select CPU_HAS_LOAD_STORE_LR
L
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1633 1634 1635
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1636 1637 1638 1639 1640
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1641
	select CPU_SUPPORTS_HUGEPAGES
1642
	select CPU_HAS_LOAD_STORE_LR
1643 1644 1645 1646
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

L
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1647 1648
config CPU_NEVADA
	bool "RM52xx"
1649
	depends on SYS_HAS_CPU_NEVADA
1650 1651
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1652
	select CPU_SUPPORTS_HUGEPAGES
1653
	select CPU_HAS_LOAD_STORE_LR
L
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1654 1655 1656 1657 1658
	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1659
	depends on SYS_HAS_CPU_R10000
1660
	select CPU_HAS_PREFETCH
1661
	select CPU_HAS_LOAD_STORE_LR
1662 1663
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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1664
	select CPU_SUPPORTS_HIGHMEM
1665
	select CPU_SUPPORTS_HUGEPAGES
L
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1666 1667 1668 1669 1670
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1671
	depends on SYS_HAS_CPU_RM7000
1672
	select CPU_HAS_PREFETCH
1673
	select CPU_HAS_LOAD_STORE_LR
1674 1675
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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1676
	select CPU_SUPPORTS_HIGHMEM
1677
	select CPU_SUPPORTS_HUGEPAGES
L
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1678 1679 1680

config CPU_SB1
	bool "SB1"
1681
	depends on SYS_HAS_CPU_SB1
1682
	select CPU_HAS_LOAD_STORE_LR
1683 1684
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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1685
	select CPU_SUPPORTS_HIGHMEM
1686
	select CPU_SUPPORTS_HUGEPAGES
1687
	select WEAK_ORDERING
L
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1688

1689 1690
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1691
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1692
	select CPU_HAS_PREFETCH
1693
	select CPU_HAS_LOAD_STORE_LR
1694 1695 1696
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1697
	select CPU_SUPPORTS_HUGEPAGES
1698 1699
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1700
	select MIPS_L1_CACHE_SHIFT_7
1701
	select HAVE_KVM
1702 1703 1704 1705 1706 1707
	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.

1708 1709 1710 1711
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1712
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1713 1714 1715 1716 1717
	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
1718
	select IRQ_MIPS_CPU
1719 1720
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1721
	select CPU_SUPPORTS_HIGHMEM
1722
	select CPU_HAS_PREFETCH
1723
	select CPU_HAS_LOAD_STORE_LR
1724 1725
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1726
	help
1727
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1728

1729 1730 1731
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1732
	select CPU_HAS_LOAD_STORE_LR
1733 1734 1735
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1736
	select CPU_SUPPORTS_HUGEPAGES
1737 1738 1739 1740
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1741 1742 1743 1744 1745 1746 1747 1748 1749 1750

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
1751
	select CPU_HAS_LOAD_STORE_LR
1752
	select CPU_MIPSR2
1753
	select CPU_SUPPORTS_HUGEPAGES
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1754
	select MIPS_ASID_BITS_VARIABLE
1755 1756
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1759 1760 1761
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1762
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778
	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
1796
	select PHYS_ADDR_T_64BIT
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1797 1798 1799 1800 1801 1802 1803 1804 1805
	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.

1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832
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

1833 1834 1835 1836
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1837
	select HAVE_KERNEL_LZ4
1838
	select HAVE_KERNEL_LZMA
1839
	select HAVE_KERNEL_LZO
1840
	select HAVE_KERNEL_XZ
1841 1842 1843 1844 1845

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1846 1847 1848 1849
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

1850 1851 1852 1853 1854
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1855
	select CPU_SUPPORTS_HUGEPAGES
1856
	select ARCH_HAS_PHYS_TO_DMA
1857
	select CPU_HAS_LOAD_STORE_LR
1858

1859 1860 1861
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
1862
	select CPU_MIPSR2
1863
	select CPU_HAS_PREFETCH
1864
	select CPU_HAS_LOAD_STORE_LR
1865 1866
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1867
	select CPU_SUPPORTS_CPUFREQ
1868

1869
config CPU_BMIPS32_3300
1870
	select SMP_UP if SMP
1871
	bool
1872 1873 1874 1875 1876 1877 1878 1879

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1880
	select MIPS_L1_CACHE_SHIFT_6
1881 1882
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1883
	select CPU_HAS_RIXI
1884 1885 1886 1887

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1888
	select MIPS_L1_CACHE_SHIFT_7
1889 1890
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1891
	select CPU_HAS_RIXI
1892

1893 1894 1895
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ
1896
	select CPU_HAS_RIXI
1897

1898
config SYS_HAS_CPU_LOONGSON2E
1899 1900
	bool

1901 1902
config SYS_HAS_CPU_LOONGSON2F
	bool
1903 1904
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1905
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1906

1907 1908 1909
config SYS_HAS_CPU_LOONGSON1B
	bool

Y
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1910 1911 1912
config SYS_HAS_CPU_LOONGSON1C
	bool

1913 1914 1915 1916 1917 1918
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1919 1920 1921
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1924
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1925

1926 1927
config SYS_HAS_CPU_MIPS32_R6
	bool
1928
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1929

1930 1931 1932 1933 1934 1935
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1936 1937
config SYS_HAS_CPU_MIPS64_R6
	bool
1938
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1939

1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957
config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

1958 1959 1960
config SYS_HAS_CPU_R5500
	bool

1961 1962 1963 1964 1965
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
1966
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1967 1968 1969 1970 1971 1972 1973

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

1974 1975 1976
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1977
config SYS_HAS_CPU_BMIPS
1978 1979
	bool

1980
config SYS_HAS_CPU_BMIPS32_3300
1981
	bool
1982
	select SYS_HAS_CPU_BMIPS
1983 1984 1985

config SYS_HAS_CPU_BMIPS4350
	bool
1986
	select SYS_HAS_CPU_BMIPS
1987 1988 1989

config SYS_HAS_CPU_BMIPS4380
	bool
1990
	select SYS_HAS_CPU_BMIPS
1991 1992 1993

config SYS_HAS_CPU_BMIPS5000
	bool
1994
	select SYS_HAS_CPU_BMIPS
1995
	select ARCH_HAS_SYNC_DMA_FOR_CPU
1996

1997 1998 1999
config SYS_HAS_CPU_XLR
	bool

2000 2001 2002
config SYS_HAS_CPU_XLP
	bool

2003 2004 2005 2006
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2007 2008
config WEAK_ORDERING
	bool
2009 2010 2011 2012 2013 2014 2015

#
# 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
2016 2017 2018
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2020 2021 2022
#
config CPU_MIPS32
	bool
2023
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2024 2025 2026

config CPU_MIPS64
	bool
2027
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2028 2029

#
2030
# These indicate the revision of the architecture
2031 2032 2033 2034 2035 2036 2037
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2038
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2039
	select CPU_HAS_RIXI
2040
	select MIPS_SPRAM
2041

2042 2043 2044
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2045
	select CPU_HAS_RIXI
2046
	select HAVE_ARCH_BITREVERSE
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2047
	select MIPS_ASID_BITS_VARIABLE
2048
	select MIPS_CRC_SUPPORT
2049
	select MIPS_SPRAM
2050

2051 2052 2053 2054 2055 2056 2057 2058 2059 2060
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.

2061 2062 2063
config EVA
	bool

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2064 2065 2066
config XPA
	bool

2067 2068 2069 2070 2071 2072 2073 2074
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2075 2076 2077 2078
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2079 2080
config CPU_SUPPORTS_HUGEPAGES
	bool
2081
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2082 2083
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
2084 2085
config MIPS_PGD_C0_CONTEXT
	bool
2086
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2087

2088 2089 2090 2091
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2092 2093
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2094

2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110
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.
2111

2112 2113 2114 2115 2116 2117 2118 2119
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

2120 2121
config KVM_GUEST
	bool "KVM Guest Kernel"
2122
	depends on BROKEN_ON_SMP
2123
	help
2124 2125
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2126

2127 2128
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2129
	depends on KVM_GUEST
2130
	default 100
2131
	help
2132 2133 2134
	  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.
2135

2136 2137 2138 2139
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2140 2141 2142 2143 2144 2145 2146
	  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.

2147 2148
	  If unsure, say N.

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2149 2150 2151 2152 2153 2154
choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
2155
	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
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2156
	help
2157 2158 2159 2160
	  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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2161 2162 2163

config PAGE_SIZE_8KB
	bool "8kB"
2164
	depends on CPU_CAVIUM_OCTEON
2165
	depends on !MIPS_VA_BITS_48
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2166 2167 2168
	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
2169 2170
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.
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2171 2172 2173

config PAGE_SIZE_16KB
	bool "16kB"
2174
	depends on !CPU_R3000 && !CPU_TX39XX
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2175 2176 2177
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2178 2179
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2180

2181 2182 2183
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2184
	depends on !MIPS_VA_BITS_48
2185 2186 2187 2188 2189 2190
	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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2191 2192
config PAGE_SIZE_64KB
	bool "64kB"
P
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2193
	depends on !CPU_R3000 && !CPU_TX39XX
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2194 2195 2196 2197
	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
2198
	  writing this option is still high experimental.
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2199 2200 2201

endchoice

2202 2203
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2204 2205 2206 2207 2208 2209
	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
2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 2223 2224 2225
	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

2233 2234 2235 2236 2237 2238 2239
#
# 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
2257
	bool
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2259 2260
config CPU_GENERIC_DUMP_TLB
	bool
2261
	default y if !(CPU_R3000 || CPU_TX39XX)
2262

2263
config MIPS_FP_SUPPORT
2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274 2275 2276
	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.
2277

2278 2279
config CPU_R2300_FPU
	bool
2280
	depends on MIPS_FP_SUPPORT
2281 2282
	default y if CPU_R3000 || CPU_TX39XX

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config CPU_R4K_FPU
	bool
2285
	depends on MIPS_FP_SUPPORT
2286
	default y if !CPU_R2300_FPU
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2288 2289
config CPU_R4K_CACHE_TLB
	bool
2290
	default y if !(CPU_R3000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
2291

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config MIPS_MT_SMP
2293
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2294
	default y
2295
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2296
	select CPU_MIPSR2_IRQ_VI
2297
	select CPU_MIPSR2_IRQ_EI
2298
	select SYNC_R4K
2299
	select MIPS_MT
2300
	select SMP
2301
	select SMP_UP
2302 2303
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2304
	select MIPS_PERF_SHARED_TC_COUNTERS
2305
	help
2306 2307 2308 2309 2310
	  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>.
2311

2312 2313 2314
config MIPS_MT
	bool

2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325 2326
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

2327 2328 2329
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
2334

2335 2336
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2337
	depends on CPU_MIPSR6
2338
	depends on MIPS_FP_SUPPORT
2339 2340 2341 2342
	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
2343
	  default. You can enable it using the 'mipsr2emu' kernel option.
2344 2345 2346
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2347 2348 2349 2350 2351 2352 2353
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2354 2355
config MIPS_VPE_LOADER
	bool "VPE loader support."
2356
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2357 2358 2359 2360 2361 2362
	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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2364 2365 2366 2367 2368
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2369 2370 2371 2372 2373
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2374 2375 2376 2377 2378 2379 2380 2381 2382 2383 2384
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
2385 2386
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2387

2388 2389 2390 2391 2392
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2393 2394 2395 2396 2397
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2398
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2400
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2401
	select SMP
2402
	select SYNC_R4K
2403
	select SYS_SUPPORTS_SMP
2404 2405 2406
	select WEAK_ORDERING
	default n
	help
2407 2408 2409
	  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.
2410

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

2414 2415
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2416
	depends on SYS_SUPPORTS_MIPS_CPS
2417
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2419 2420
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2422
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2423 2424 2425 2426 2427 2428 2429 2430 2431
	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.

2432
config MIPS_CPS_PM
2433
	depends on MIPS_CPS
2434 2435
	bool

2436 2437
config MIPS_CM
	bool
2438
	select MIPS_CPC
2439

2440 2441
config MIPS_CPC
	bool
2442

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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

2453 2454 2455 2456 2457 2458 2459 2460
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

2461 2462
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2463
	bool "SmartMIPS"
2464 2465 2466 2467 2468 2469 2470 2471 2472
	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.

2473
config CPU_MICROMIPS
2474
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2475
	bool "microMIPS"
2476 2477 2478 2479
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2480 2481
endchoice

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config CPU_HAS_MSA
2483
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2485
	depends on MIPS_FP_SUPPORT
2486
	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
2490 2491 2492 2493 2494
	  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
2499
	bool
2500

2501 2502 2503
config XKS01
	bool

2504 2505 2506
config CPU_HAS_RIXI
	bool

2507 2508 2509 2510 2511 2512 2513
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).

2514 2515 2516
#
# Vectored interrupt mode is an R2 feature
#
2517
config CPU_MIPSR2_IRQ_VI
2518
	bool
2519

2520 2521 2522
#
# Extended interrupt mode is an R2 feature
#
2523
config CPU_MIPSR2_IRQ_EI
2524
	bool
2525

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2531 2532 2533 2534 2535 2536 2537 2538 2539 2540 2541 2542 2543
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2544 2545 2546 2547 2548 2549 2550
config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 0

config MIPS_ASID_BITS
	int
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	default 0 if MIPS_ASID_BITS_VARIABLE
2552 2553 2554
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2558 2559 2560
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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#
config HIGHMEM
	bool "High Memory Support"
2576
	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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2584 2585 2586
config SYS_SUPPORTS_SMARTMIPS
	bool

2587 2588 2589
config SYS_SUPPORTS_MICROMIPS
	bool

2590 2591 2592 2593 2594 2595 2596
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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config CPU_SUPPORTS_MSA
	bool

2600 2601
config ARCH_FLATMEM_ENABLE
	def_bool y
2602
	depends on !NUMA && !CPU_LOONGSON2
2603

2604 2605 2606 2607
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2608
	  Say Y to support efficient handling of discontiguous physical memory,
2609 2610
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
2611
	  See <file:Documentation/vm/numa.rst> for more.
2612

2613 2614
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2616

2617 2618 2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629
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

2630 2631
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)
2633 2634 2635 2636 2637 2638
	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

2639 2640 2641 2642 2643 2644 2645 2646 2647 2648 2649 2650 2651 2652 2653 2654
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.

2655 2656 2657 2658
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2659 2660 2661 2662
	  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.
2663

2664
	  Entropy is generated using any coprocessor 0 registers available.
2665

2666
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2667

2668
	  If unsure, say N.
2669 2670 2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684

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.

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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2690 2691
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2692
	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2693 2694 2695 2696 2697
	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"
2700 2701
	depends on SYS_SUPPORTS_SMP
	help
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2702
	  This enables support for systems with more than one CPU. If you have
2703 2704
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2705

2706
	  If you say N here, the kernel will run on uni- and multiprocessor
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	  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,
2709
	  uniprocessor machines. On a uniprocessor machine, the kernel
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	  will run faster if you say N here.

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

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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2717 2718 2719

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

2720 2721 2722 2723 2724 2725 2726 2727 2728 2729
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.

2730 2731 2732
config SMP_UP
	bool

2733 2734 2735
config SYS_SUPPORTS_MIPS_CMP
	bool

2736 2737 2738
config SYS_SUPPORTS_MIPS_CPS
	bool

2739 2740 2741
config SYS_SUPPORTS_SMP
	bool

2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756
config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

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config NR_CPUS
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2758 2759
	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2761 2762 2763 2764 2765
	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
2770 2771
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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	  This is purely to save memory - each supported CPU adds
2774 2775 2776
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
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2778 2779
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2780 2781 2782 2783 2784 2785 2786 2787 2788

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
2789

2790 2791 2792 2793 2794 2795 2796 2797
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2798
	  Allows the configuration of the timer frequency.
2799

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	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2803
	config HZ_48
2804
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819 2820 2821 2822 2823 2824 2825

	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
2826 2827 2828
config SYS_SUPPORTS_24HZ
	bool

2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851
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
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Paul Burton 已提交
2852 2853 2854 2855 2856 2857 2858
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2859 2860 2861 2862
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
P
Paul Burton 已提交
2863
	default 24 if HZ_24
2864 2865 2866 2867 2868 2869 2870 2871
	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
2872 2873 2874
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2875
config KEXEC
2876
	bool "Kexec system call"
2877
	select KEXEC_CORE
2878 2879 2880
	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
2881
	  but it is independent of the system firmware.   And like a reboot
2882 2883
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2884
	  The name comes from the similarity to the exec system call.
2885 2886 2887

	  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
2888 2889 2890
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2891

R
Ralf Baechle 已提交
2892
config CRASH_DUMP
2893 2894
	bool "Kernel crash dumps"
	help
R
Ralf Baechle 已提交
2895 2896 2897 2898 2899 2900 2901 2902 2903
	  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
2904
	hex "Physical address where the kernel is loaded"
2905
	default "0xffffffff84000000"
2906 2907
	depends on CRASH_DUMP
	help
R
Ralf Baechle 已提交
2908 2909 2910 2911 2912 2913
	  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).

2914 2915
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2916
	depends on PROC_FS
2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930
	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.

2931
config MIPS_O32_FP64_SUPPORT
2932
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944
	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.

2945 2946 2947 2948 2949 2950 2951 2952
	  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.
2953

2954
config USE_OF
2955
	bool
2956
	select OF
2957
	select OF_EARLY_FLATTREE
2958
	select IRQ_DOMAIN
2959

2960 2961 2962
config UHI_BOOT
	bool

2963 2964 2965
config BUILTIN_DTB
	bool

2966
choice
2967
	prompt "Kernel appended dtb support" if USE_OF
2968 2969 2970 2971 2972 2973 2974
	default MIPS_NO_APPENDED_DTB

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

2975 2976 2977 2978 2979 2980 2981 2982 2983 2984 2985 2986 2987 2988
	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.

2989
	config MIPS_RAW_APPENDED_DTB
2990
		bool "vmlinux.bin or vmlinuz.bin"
2991 2992
		help
		  With this option, the boot code will look for a device tree binary
2993
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006
		  (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

3007 3008
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3009
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3010
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3011
					 !CAVIUM_OCTEON_SOC
3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
	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"
3024 3025 3026 3027

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3028 3029
endchoice

3030 3031
endmenu

3032 3033 3034 3035 3036 3037 3038 3039
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3040 3041
config PGTABLE_LEVELS
	int
3042
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3043 3044 3045
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3046 3047 3048
config MIPS_AUTO_PFN_OFFSET
	bool

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Linus Torvalds 已提交
3049 3050
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3051
config PCI_DRIVERS_GENERIC
3052
	select PCI_DOMAINS_GENERIC if PCI
3053 3054 3055 3056 3057
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3058
	select PCI_DOMAINS if PCI
L
Linus Torvalds 已提交
3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069 3070 3071

#
# 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
3072 3073 3074 3075 3076 3077 3078 3079
	  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
3080 3081 3082 3083 3084

config MMU
	bool
	default y

3085 3086 3087 3088 3089 3090 3091 3092 3093
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
3094
	default 8
3095 3096

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3097
	default 15
3098

3099 3100
config I8253
	bool
3101
	select CLKSRC_I8253
3102
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3103
	select MIPS_EXTERNAL_TIMER
3104

3105 3106 3107
config ZONE_DMA
	bool

3108 3109 3110
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3111 3112 3113 3114 3115 3116
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3117
	bool
L
Linus Torvalds 已提交
3118 3119 3120 3121

config COMPAT
	bool

3122 3123 3124
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3125 3126
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3127 3128 3129 3130 3131
	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
3132 3133 3134 3135 3136 3137 3138 3139 3140
	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"
3141
	depends on 64BIT
3142
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3143 3144 3145
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3146 3147 3148 3149 3150 3151 3152 3153 3154 3155 3156
	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
3157
	select ELFCORE
L
Linus Torvalds 已提交
3158

3159 3160
menu "Power management options"

W
Wu Zhangjin 已提交
3161 3162
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3163
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3164

J
Johannes Berg 已提交
3165 3166
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3167
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3168

3169
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3170

L
Linus Torvalds 已提交
3171 3172
endmenu

3173 3174 3175 3176
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3177 3178

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3179 3180
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3181

P
Paul Burton 已提交
3182 3183 3184 3185
source "drivers/cpuidle/Kconfig"

endmenu

3186 3187
source "drivers/firmware/Kconfig"

3188
source "arch/mips/kvm/Kconfig"