Kconfig 81.1 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_CLOCKSOURCE_DATA
	select ARCH_HAS_ELF_RANDOMIZE
	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_EXTABLE_SORT
	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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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 && 64BIT
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	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
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	select HAVE_CONTEXT_TRACKING
	select HAVE_COPY_THREAD_TLS
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EXIT_THREAD
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	select HAVE_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 IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select MODULES_USE_ELF_REL if MODULES
	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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menu "Machine selection"

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choice
	prompt "System type"
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	default MIPS_GENERIC
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config MIPS_GENERIC
	bool "Generic board-agnostic MIPS kernel"
	select BOOT_RAW
	select BUILTIN_DTB
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select CSRC_R4K
	select DMA_PERDEV_COHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
	select LIBFDT
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	select MIPS_AUTO_PFN_OFFSET
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	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select MIPS_L1_CACHE_SHIFT_7
	select NO_EXCEPT_FILL
	select PCI_DRIVERS_GENERIC
	select PINCTRL
	select SMP_UP if SMP
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS32_R6
	select SYS_HAS_CPU_MIPS64_R1
	select SYS_HAS_CPU_MIPS64_R2
	select SYS_HAS_CPU_MIPS64_R6
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MICROMIPS
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
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	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
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	select USE_OF
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	select UHI_BOOT
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	help
	  Select this to build a kernel which aims to support multiple boards,
	  generally using a flattened device tree passed from the bootloader
	  using the boot protocol defined in the UHI (Unified Hosting
	  Interface) specification.

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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select PHYS_ADDR_T_64BIT
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
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	select GPIOLIB
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	select SYS_SUPPORTS_ZBOOT
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	select COMMON_CLK
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config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	select NO_EXCEPT_FILL
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select GPIOLIB
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	select VLYNQ
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	select HAVE_CLK
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	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

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config ATH25
	bool "Atheros AR231x/AR531x SoC support"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select IRQ_DOMAIN
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_HAS_EARLY_PRINTK
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	help
	  Support for Atheros AR231x and Atheros AR531x based boards

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config ATH79
	bool "Atheros AR71XX/AR724X/AR913X based boards"
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	select ARCH_HAS_RESET_CONTROLLER
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	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
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	select GPIOLIB
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	select PINCTRL
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	select HAVE_CLK
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	select COMMON_CLK
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	select CLKDEV_LOOKUP
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	select IRQ_MIPS_CPU
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	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT_UART_PROM
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	select USE_OF
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	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
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	help
	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.

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config BMIPS_GENERIC
	bool "Broadcom Generic BMIPS kernel"
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	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
	select ARCH_HAS_PHYS_TO_DMA
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	select BOOT_RAW
	select NO_EXCEPT_FILL
	select USE_OF
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K
	select COMMON_CLK
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	select BCM6345_L1_IRQ
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	select BCM7038_L1_IRQ
	select BCM7120_L2_IRQ
	select BRCMSTB_L2_IRQ
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	select IRQ_MIPS_CPU
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	select DMA_NONCOHERENT
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
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	select SYS_HAS_CPU_BMIPS32_3300
	select SYS_HAS_CPU_BMIPS4350
	select SYS_HAS_CPU_BMIPS4380
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	select SYS_HAS_CPU_BMIPS5000
	select SWAP_IO_SPACE
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	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
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	select HARDIRQS_SW_RESEND
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	help
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	  Build a generic DT-based kernel image that boots on select
	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
	  must be set appropriately for your board.
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config BCM47XX
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	bool "Broadcom BCM47XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
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	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select SYS_HAS_CPU_MIPS32_R1
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	select NO_EXCEPT_FILL
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select GPIOLIB
	select LEDS_GPIO_REGISTER
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	select BCM47XX_NVRAM
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	select BCM47XX_SPROM
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	select BCM47XX_SSB if !BCM47XX_BCMA
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	help
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	  Support for BCM47XX based boards
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config BCM63XX
	bool "Broadcom BCM63XX based boards"
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	select BOOT_RAW
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	select CEVT_R4K
	select CSRC_R4K
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	select SYNC_R4K
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
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	select GPIOLIB
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	select HAVE_CLK
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	select MIPS_L1_CACHE_SHIFT_4
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	select CLKDEV_LOOKUP
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	help
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	  Support for BCM63XX based boards
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config MIPS_COBALT
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	bool "Cobalt Server"
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	select CEVT_R4K
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	select CSRC_R4K
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	select CEVT_GT641XX
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	select DMA_NONCOHERENT
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	select FORCE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
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	select IRQ_GT641XX
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	select PCI_GT64XXX_PCI0
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	select SYS_HAS_CPU_NEVADA
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	select SYS_HAS_EARLY_PRINTK
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select USE_GENERIC_EARLY_PRINTK_8250
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config MACH_DECSTATION
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	bool "DECstations"
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	select BOOT_ELF32
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	select CEVT_DS1287
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	select CEVT_R4K if CPU_R4X00
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	select CSRC_IOASIC
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	select CSRC_R4K if CPU_R4X00
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	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
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	select DMA_NONCOHERENT
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	select NO_IOPORT_MAP
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	select IRQ_MIPS_CPU
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	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
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	select MIPS_L1_CACHE_SHIFT_4
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	help
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	  This enables support for DEC's MIPS based workstations.  For details
	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
	  DECstation porting pages on <http://decstation.unix-ag.org/>.

	  If you have one of the following DECstation Models you definitely
	  want to choose R4xx0 for the CPU Type:

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		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260
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	  otherwise choose R3000.

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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	select LIBFDT
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CRC32
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select PCI_GT64XXX_PCI0
	select MIPS_NILE4
	select R5000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
	select SYS_SUPPORTS_LITTLE_ENDIAN

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config MACH_LOONGSON32
	bool "Loongson-1 family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the Loongson-1 family of machines.
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	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).
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config MACH_LOONGSON64
	bool "Loongson-2/3 family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of Loongson-2/3 family of machines.
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	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
	  family of multi-core CPUs. They are both 64-bit general-purpose
	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
	  in the People's Republic of China. The chief architect is Professor
	  Weiwu Hu.
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config MACH_PISTACHIO
	bool "IMG Pistachio SoC based boards"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select GPIOLIB
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	select IRQ_MIPS_CPU
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	select LIBFDT
	select MFD_SYSCON
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select PINCTRL
	select REGULATOR
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

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config MIPS_MALTA
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	bool "MIPS Malta board"
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	select ARCH_MAY_HAVE_PC_FDC
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select BOOT_ELF32
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	select BOOT_RAW
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	select BUILTIN_DTB
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	select CEVT_R4K
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	select CLKSRC_MIPS_GIC
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	select COMMON_CLK
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	select CSRC_R4K
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	select DMA_MAYBE_COHERENT
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select HAVE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
	select LIBFDT
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	select MIPS_BONITO64
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	select MIPS_CPU_SCACHE
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	select MIPS_GIC
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	select MIPS_L1_CACHE_SHIFT_6
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	select MIPS_MSC
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	select PCI_GT64XXX_PCI0
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	select SMP_UP if SMP
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	select SWAP_IO_SPACE
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	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
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	select SYS_HAS_CPU_MIPS32_R3_5
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	select SYS_HAS_CPU_MIPS32_R5
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	select SYS_HAS_CPU_MIPS32_R6
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	select SYS_HAS_CPU_MIPS64_R1
525
	select SYS_HAS_CPU_MIPS64_R2
526
	select SYS_HAS_CPU_MIPS64_R6
527 528
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
529 530
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
531
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
532
	select SYS_SUPPORTS_HIGHMEM
533
	select SYS_SUPPORTS_LITTLE_ENDIAN
534
	select SYS_SUPPORTS_MICROMIPS
535
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
536
	select SYS_SUPPORTS_MIPS_CMP
537
	select SYS_SUPPORTS_MIPS_CPS
538
	select SYS_SUPPORTS_MULTITHREADING
539
	select SYS_SUPPORTS_RELOCATABLE
540
	select SYS_SUPPORTS_SMARTMIPS
541
	select SYS_SUPPORTS_VPE_LOADER
542
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
543
	select USE_OF
544
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
545
	help
546
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
547 548
	  board.

549 550 551 552 553 554 555 556
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.

557 558 559
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
560
	select HAVE_PCI
561 562
	help
	  This enables support for the NEC Electronics Mark-eins boards.
563

564
config MACH_VR41XX
565
	bool "NEC VR4100 series based machines"
566
	select CEVT_R4K
567
	select CSRC_R4K
568
	select SYS_HAS_CPU_VR41XX
569
	select SYS_SUPPORTS_MIPS16
570
	select GPIOLIB
571

572 573 574 575
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
576
	  Support for NXP Semiconductors STB220 Development Board.
577 578 579 580 581 582

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
583
	  Support for NXP Semiconductors STB225 Development Board.
584

M
Marc St-Jean 已提交
585 586
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
587 588
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
589 590 591 592 593 594 595 596
	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
597
	select SYS_SUPPORTS_MIPS16
598
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
599 600
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
601 602
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
603 604 605 606 607 608
	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
609 610 611 612 613 614
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
615
	select IRQ_MIPS_CPU
J
John Crispin 已提交
616 617 618 619 620
	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
621
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
622 623
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
624 625
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
626

L
Linus Torvalds 已提交
627
config SGI_IP22
628
	bool "SGI IP22 (Indy/Indigo2)"
629 630
	select FW_ARC
	select FW_ARC32
631
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
632
	select BOOT_ELF32
633
	select CEVT_R4K
634
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
635
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
636
	select DMA_NONCOHERENT
637
	select HAVE_EISA
638
	select I8253
639
	select I8259
L
Linus Torvalds 已提交
640
	select IP22_CPU_SCACHE
641
	select IRQ_MIPS_CPU
642
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
643 644
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
645
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
646 647 648
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
649
	select SWAP_IO_SPACE
650 651
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
652 653 654 655 656 657 658 659
	#
	# 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
660 661
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
662
	select SYS_SUPPORTS_BIG_ENDIAN
663
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
664 665 666 667 668 669
	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
670
	bool "SGI IP27 (Origin200/2000)"
671
	select ARCH_HAS_PHYS_TO_DMA
672 673
	select FW_ARC
	select FW_ARC64
674
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
675
	select DEFAULT_SGI_PARTITION
676
	select SYS_HAS_EARLY_PRINTK
677
	select HAVE_PCI
678
	select IRQ_MIPS_CPU
679
	select IRQ_DOMAIN_HIERARCHY
680
	select NR_CPUS_DEFAULT_64
681 682
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
683
	select SYS_HAS_CPU_R10000
684
	select SYS_SUPPORTS_64BIT_KERNEL
685
	select SYS_SUPPORTS_BIG_ENDIAN
686
	select SYS_SUPPORTS_NUMA
687
	select SYS_SUPPORTS_SMP
688
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
689 690 691 692 693
	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
694
config SGI_IP28
695
	bool "SGI IP28 (Indigo2 R10k)"
696 697
	select FW_ARC
	select FW_ARC64
698
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
699 700 701 702 703 704
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
705
	select IRQ_MIPS_CPU
706
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
707 708 709 710
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
711
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
712 713 714 715 716
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
717 718 719 720 721 722 723 724
	#
	# 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
725 726
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
727
	select MIPS_L1_CACHE_SHIFT_7
728 729 730
	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
731

L
Linus Torvalds 已提交
732
config SGI_IP32
733
	bool "SGI IP32 (O2)"
734
	select ARCH_HAS_PHYS_TO_DMA
735 736
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
737
	select BOOT_ELF32
738
	select CEVT_R4K
739
	select CSRC_R4K
L
Linus Torvalds 已提交
740
	select DMA_NONCOHERENT
741
	select HAVE_PCI
742
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
743 744
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
745 746 747
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
748
	select SYS_HAS_CPU_NEVADA
749
	select SYS_SUPPORTS_64BIT_KERNEL
750 751
	select SYS_SUPPORTS_BIG_ENDIAN
	help
752
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
753

754 755
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
756
	select BOOT_ELF32
757
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
758
	select SWAP_IO_SPACE
759
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
760 761 762
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

763 764
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
765
	select BOOT_ELF32
766
	select SIBYTE_BCM1120
767
	select SWAP_IO_SPACE
768
	select SYS_HAS_CPU_SB1
769
	select SYS_SUPPORTS_BIG_ENDIAN
770
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
771

772 773
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
774
	select BOOT_ELF32
775
	select SIBYTE_BCM1125
776
	select SWAP_IO_SPACE
777
	select SYS_HAS_CPU_SB1
778
	select SYS_SUPPORTS_BIG_ENDIAN
779
	select SYS_SUPPORTS_HIGHMEM
780
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
781

782
config SIBYTE_RHONE
783
	bool "Sibyte BCM91125E-Rhone"
784 785 786
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
787
	select SYS_HAS_CPU_SB1
788 789
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
790

791 792
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
793
	select BOOT_ELF32
794
	select HAVE_PATA_PLATFORM
795
	select SIBYTE_SB1250
796
	select SWAP_IO_SPACE
797
	select SYS_HAS_CPU_SB1
798
	select SYS_SUPPORTS_BIG_ENDIAN
799
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
800
	select SYS_SUPPORTS_LITTLE_ENDIAN
801
	select ZONE_DMA32 if 64BIT
802
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
803

804 805
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
806
	select BOOT_ELF32
807
	select HAVE_PATA_PLATFORM
808 809
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
810
	select SYS_HAS_CPU_SB1
811 812 813
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
814
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
815

816 817
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
818 819 820
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
821
	select SYS_HAS_CPU_SB1
822 823
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
824
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
825

826 827
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
828
	select BOOT_ELF32
829 830
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
831
	select SWAP_IO_SPACE
832
	select SYS_HAS_CPU_SB1
833
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
834
	select SYS_SUPPORTS_HIGHMEM
835
	select SYS_SUPPORTS_LITTLE_ENDIAN
836
	select ZONE_DMA32 if 64BIT
837
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
838

839 840
config SNI_RM
	bool "SNI RM200/300/400"
841 842
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
843
	select FW_SNIPROM if CPU_BIG_ENDIAN
844
	select ARCH_MAY_HAVE_PC_FDC
845
	select ARCH_MIGHT_HAVE_PC_PARPORT
846
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
847
	select BOOT_ELF32
848
	select CEVT_R4K
849
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
850
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
851 852
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
853
	select HAVE_EISA
854
	select HAVE_PCSPKR_PLATFORM
855
	select HAVE_PCI
856
	select IRQ_MIPS_CPU
857
	select I8253
L
Linus Torvalds 已提交
858 859
	select I8259
	select ISA
860
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
861
	select SYS_HAS_CPU_R4X00
862
	select SYS_HAS_CPU_R5000
863
	select SYS_HAS_CPU_R10000
864
	select R5000_CPU_SCACHE
865
	select SYS_HAS_EARLY_PRINTK
866
	select SYS_SUPPORTS_32BIT_KERNEL
867
	select SYS_SUPPORTS_64BIT_KERNEL
868
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
869
	select SYS_SUPPORTS_HIGHMEM
870
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
871
	help
872 873
	  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
874 875 876
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

877 878
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
879

880 881
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
882

883 884 885 886 887
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
888
	select HAVE_PCI
889
	select IRQ_MIPS_CPU
890 891 892 893 894
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
895
	select GPIOLIB
896
	select MIPS_L1_CACHE_SHIFT_4
897 898 899 900
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

901 902
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
903
	select CEVT_R4K
904
	select ARCH_HAS_PHYS_TO_DMA
905
	select HAVE_RAPIDIO
906
	select PHYS_ADDR_T_64BIT
907 908
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
909
	select EDAC_SUPPORT
910
	select EDAC_ATOMIC_SCRUB
911 912
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
913
	select SYS_HAS_EARLY_PRINTK
914
	select SYS_HAS_CPU_CAVIUM_OCTEON
915
	select HAVE_PCI
D
David Daney 已提交
916
	select ZONE_DMA32
917
	select HOLES_IN_ZONE
918
	select GPIOLIB
919 920 921 922
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
923 924
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
925
	select BUILTIN_DTB
926
	select MTD_COMPLEX_MAPPINGS
927
	select SWIOTLB
S
Steven J. Hill 已提交
928
	select SYS_SUPPORTS_RELOCATABLE
929 930 931 932 933 934 935 936 937 938 939 940 941
	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.

942 943 944 945 946 947
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
948
	select HAVE_PCI
949 950 951
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
952
	select PHYS_ADDR_T_64BIT
953 954 955 956 957
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
958
	select IRQ_MIPS_CPU
959
	select ZONE_DMA32 if 64BIT
960 961
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
962 963
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
964 965 966 967
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

968 969 970 971 972 973
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
974
	select HAVE_PCI
975 976
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
977
	select PHYS_ADDR_T_64BIT
978
	select GPIOLIB
979 980 981 982 983 984
	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
985
	select IRQ_MIPS_CPU
986
	select ZONE_DMA32 if 64BIT
987 988
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
989
	select USE_OF
990 991
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
992 993 994 995
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008
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
1009
	select HAVE_PCI
1010 1011 1012 1013
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1014
endchoice
L
Linus Torvalds 已提交
1015

R
Ralf Baechle 已提交
1016
source "arch/mips/alchemy/Kconfig"
1017
source "arch/mips/ath25/Kconfig"
1018
source "arch/mips/ath79/Kconfig"
1019
source "arch/mips/bcm47xx/Kconfig"
1020
source "arch/mips/bcm63xx/Kconfig"
1021
source "arch/mips/bmips/Kconfig"
1022
source "arch/mips/generic/Kconfig"
1023
source "arch/mips/jazz/Kconfig"
1024
source "arch/mips/jz4740/Kconfig"
1025
source "arch/mips/lantiq/Kconfig"
1026
source "arch/mips/lasat/Kconfig"
1027
source "arch/mips/pic32/Kconfig"
1028
source "arch/mips/pistachio/Kconfig"
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1029
source "arch/mips/pmcs-msp71xx/Kconfig"
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1030
source "arch/mips/ralink/Kconfig"
1031
source "arch/mips/sgi-ip27/Kconfig"
1032
source "arch/mips/sibyte/Kconfig"
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1033
source "arch/mips/txx9/Kconfig"
1034
source "arch/mips/vr41xx/Kconfig"
1035
source "arch/mips/cavium-octeon/Kconfig"
1036 1037
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1038
source "arch/mips/netlogic/Kconfig"
1039
source "arch/mips/paravirt/Kconfig"
1040

1041 1042
endmenu

1043 1044 1045 1046
config GENERIC_HWEIGHT
	bool
	default y

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1047 1048 1049 1050
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1051
config SCHED_OMIT_FRAME_POINTER
1052 1053 1054
	bool
	default y

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1055 1056 1057
#
# Select some configuration options automatically based on user selections.
#
1058
config FW_ARC
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1059 1060
	bool

1061 1062 1063
config ARCH_MAY_HAVE_PC_FDC
	bool

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1064 1065 1066
config BOOT_RAW
	bool

1067 1068 1069
config CEVT_BCM1480
	bool

1070 1071 1072
config CEVT_DS1287
	bool

1073 1074 1075
config CEVT_GT641XX
	bool

1076 1077 1078
config CEVT_R4K
	bool

1079 1080 1081
config CEVT_SB1250
	bool

1082 1083 1084
config CEVT_TXX9
	bool

1085 1086 1087
config CSRC_BCM1480
	bool

1088 1089 1090
config CSRC_IOASIC
	bool

1091 1092 1093
config CSRC_R4K
	bool

1094 1095 1096
config CSRC_SB1250
	bool

1097 1098 1099
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1100
config GPIO_TXX9
1101
	select GPIOLIB
1102 1103
	bool

1104
config FW_CFE
1105 1106
	bool

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1107 1108 1109
config ARCH_SUPPORTS_UPROBES
	bool

1110
config DMA_MAYBE_COHERENT
1111
	select ARCH_HAS_DMA_COHERENCE_H
1112 1113 1114
	select DMA_NONCOHERENT
	bool

1115 1116
config DMA_PERDEV_COHERENT
	bool
1117
	select ARCH_HAS_SETUP_DMA_OPS
1118
	select DMA_NONCOHERENT
1119

1120 1121
config DMA_NONCOHERENT
	bool
1122
	select ARCH_HAS_DMA_MMAP_PGPROT
1123
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1124
	select ARCH_HAS_UNCACHED_SEGMENT
1125
	select NEED_DMA_MAP_STATE
1126
	select ARCH_HAS_DMA_COHERENT_TO_PFN
1127
	select DMA_NONCOHERENT_CACHE_SYNC
1128

1129
config SYS_HAS_EARLY_PRINTK
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1130 1131
	bool

1132
config SYS_SUPPORTS_HOTPLUG_CPU
1133 1134
	bool

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1135 1136 1137 1138 1139 1140
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1141 1142 1143
config MIPS_NILE4
	bool

1144 1145 1146
config SYNC_R4K
	bool

1147 1148 1149
config MIPS_MACHINE
	def_bool n

1150
config NO_IOPORT_MAP
1151 1152
	def_bool n

1153 1154
config GENERIC_CSUM
	bool
1155
	default y if !CPU_HAS_LOAD_STORE_LR
1156

1157 1158 1159
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1160
	select ISA_DMA_API
1161

1162 1163
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1164
	select GENERIC_ISA_DMA
1165

1166 1167 1168
config ISA_DMA_API
	bool

1169 1170 1171
config HOLES_IN_ZONE
	bool

1172 1173 1174
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1175 1176 1177
	  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.
1178

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1179 1180 1181 1182 1183 1184 1185 1186 1187
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


1188
#
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1189
# Endianness selection.  Sufficiently obscure so many users don't know what to
1190 1191 1192 1193
# 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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1194
	prompt "Endianness selection"
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1195 1196
	help
	  Some MIPS machines can be configured for either little or big endian
1197
	  byte order. These modes require different kernels and a different
M
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1198
	  Linux distribution.  In general there is one preferred byteorder for a
1199
	  particular system but some systems are just as commonly used in the
1200
	  one or the other endianness.
1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211

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

1212 1213 1214
config EXPORT_UASM
	bool

1215 1216 1217
config SYS_SUPPORTS_APM_EMULATION
	bool

1218 1219 1220 1221 1222
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1223

1224 1225 1226 1227 1228
config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
	default y

1229 1230 1231
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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1232 1233 1234
config IRQ_CPU_RM7K
	bool

M
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1235 1236 1237 1238 1239 1240
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1241 1242 1243
config IRQ_TXX9
	bool

Y
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1244 1245 1246
config IRQ_GT641XX
	bool

1247
config PCI_GT64XXX_PCI0
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1248 1249
	bool

1250 1251 1252
config PCI_XTALK_BRIDGE
	bool

M
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1253 1254 1255
config NO_EXCEPT_FILL
	bool

1256 1257 1258 1259 1260
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1261
	select IRQ_MIPS_CPU
1262 1263 1264 1265 1266 1267
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1268 1269 1270 1271
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1272
	select IRQ_MIPS_CPU
1273 1274 1275 1276 1277
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1278
	select SYS_SUPPORTS_MIPS16
1279 1280 1281 1282 1283 1284
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1285 1286 1287
config MIPS_SPRAM
	bool

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1288 1289 1290
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1291 1292 1293
config SGI_HAS_INDYDOG
	bool

1294 1295 1296
config SGI_HAS_HAL2
	bool

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Thomas Bogendoerfer 已提交
1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311
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

1312
config FW_ARC32
1313 1314
	bool

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Paul Bolle 已提交
1315
config FW_SNIPROM
1316 1317
	bool

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1318 1319 1320
config BOOT_ELF32
	bool

1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332
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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1333 1334
config MIPS_L1_CACHE_SHIFT
	int
1335
	default "7" if MIPS_L1_CACHE_SHIFT_7
1336 1337 1338
	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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1339 1340 1341 1342 1343 1344 1345
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1346
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1347 1348 1349

config ARC_MEMORY
	bool
1350
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
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1351 1352 1353 1354
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1355
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
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1356 1357
	default y

1358
config FW_ARC64
L
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1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1370 1371 1372
config CPU_LOONGSON3
	bool "Loongson 3 CPU"
	depends on SYS_HAS_CPU_LOONGSON3
1373
	select ARCH_HAS_PHYS_TO_DMA
1374 1375 1376
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1377
	select CPU_HAS_LOAD_STORE_LR
1378 1379
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1380
	select MIPS_PGD_C0_CONTEXT
1381
	select MIPS_L1_CACHE_SHIFT_6
1382
	select GPIOLIB
1383
	select SWIOTLB
1384 1385 1386 1387
	help
		The Loongson 3 processor implements the MIPS64R2 instruction
		set with many extensions.

1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405
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.

1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420
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.

1421 1422 1423 1424
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1425 1426 1427 1428
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1429
	  It has an internal FPGA northbridge, which is compatible to
1430 1431 1432 1433 1434 1435
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1436
	select GPIOLIB
1437 1438 1439 1440 1441 1442 1443 1444
	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.

1445 1446 1447 1448
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
1449
	select LEDS_GPIO_REGISTER
1450 1451
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1452 1453
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1454

Y
Yang Ling 已提交
1455 1456 1457 1458 1459 1460 1461
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
1462 1463
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1464

1465 1466
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1467
	depends on SYS_HAS_CPU_MIPS32_R1
1468
	select CPU_HAS_PREFETCH
1469
	select CPU_HAS_LOAD_STORE_LR
R
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1470
	select CPU_SUPPORTS_32BIT_KERNEL
1471
	select CPU_SUPPORTS_HIGHMEM
R
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1472
	help
1473
	  Choose this option to build a kernel for release 1 or later of the
R
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1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484
	  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"
1485
	depends on SYS_HAS_CPU_MIPS32_R2
R
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1486
	select CPU_HAS_PREFETCH
1487
	select CPU_HAS_LOAD_STORE_LR
R
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1488
	select CPU_SUPPORTS_32BIT_KERNEL
1489
	select CPU_SUPPORTS_HIGHMEM
P
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1490
	select CPU_SUPPORTS_MSA
1491
	select HAVE_KVM
1492
	help
1493
	  Choose this option to build a kernel for release 2 or later of the
1494 1495 1496 1497 1498
	  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.

1499
config CPU_MIPS32_R6
1500
	bool "MIPS32 Release 6"
1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513
	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.

1514 1515
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1516
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1517
	select CPU_HAS_PREFETCH
1518
	select CPU_HAS_LOAD_STORE_LR
1519 1520
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1521
	select CPU_SUPPORTS_HIGHMEM
1522
	select CPU_SUPPORTS_HUGEPAGES
1523 1524 1525 1526 1527 1528
	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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1529 1530 1531 1532 1533 1534 1535
	  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"
1536
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1537
	select CPU_HAS_PREFETCH
1538
	select CPU_HAS_LOAD_STORE_LR
R
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1539 1540
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1541
	select CPU_SUPPORTS_HIGHMEM
1542
	select CPU_SUPPORTS_HUGEPAGES
P
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1543
	select CPU_SUPPORTS_MSA
1544
	select HAVE_KVM
R
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1545 1546 1547 1548 1549 1550
	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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1551

1552
config CPU_MIPS64_R6
1553
	bool "MIPS64 Release 6"
1554 1555 1556 1557 1558
	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
1559
	select CPU_SUPPORTS_HUGEPAGES
1560
	select CPU_SUPPORTS_MSA
1561
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1562
	select HAVE_KVM
1563 1564 1565 1566 1567 1568
	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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1569 1570
config CPU_R3000
	bool "R3000"
1571
	depends on SYS_HAS_CPU_R3000
1572
	select CPU_HAS_WB
1573
	select CPU_HAS_LOAD_STORE_LR
1574
	select CPU_SUPPORTS_32BIT_KERNEL
R
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1575
	select CPU_SUPPORTS_HIGHMEM
L
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1576 1577 1578 1579 1580 1581 1582 1583 1584 1585
	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"
1586
	depends on SYS_HAS_CPU_TX39XX
1587
	select CPU_SUPPORTS_32BIT_KERNEL
1588
	select CPU_HAS_LOAD_STORE_LR
L
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1589 1590 1591

config CPU_VR41XX
	bool "R41xx"
1592
	depends on SYS_HAS_CPU_VR41XX
1593 1594
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1595
	select CPU_HAS_LOAD_STORE_LR
L
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1596
	help
1597
	  The options selects support for the NEC VR4100 series of processors.
L
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1598 1599 1600 1601 1602 1603
	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4300
	bool "R4300"
1604
	depends on SYS_HAS_CPU_R4300
1605 1606
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1607
	select CPU_HAS_LOAD_STORE_LR
L
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1608 1609 1610 1611 1612
	help
	  MIPS Technologies R4300-series processors.

config CPU_R4X00
	bool "R4x00"
1613
	depends on SYS_HAS_CPU_R4X00
1614 1615
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1616
	select CPU_SUPPORTS_HUGEPAGES
1617
	select CPU_HAS_LOAD_STORE_LR
L
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1624
	depends on SYS_HAS_CPU_TX49XX
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1625
	select CPU_HAS_PREFETCH
1626
	select CPU_HAS_LOAD_STORE_LR
1627 1628
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1629
	select CPU_SUPPORTS_HUGEPAGES
L
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1630 1631 1632

config CPU_R5000
	bool "R5000"
1633
	depends on SYS_HAS_CPU_R5000
1634 1635
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1636
	select CPU_SUPPORTS_HUGEPAGES
1637
	select CPU_HAS_LOAD_STORE_LR
L
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1638 1639 1640 1641 1642
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

config CPU_R5432
	bool "R5432"
1643
	depends on SYS_HAS_CPU_R5432
1644 1645
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1646
	select CPU_SUPPORTS_HUGEPAGES
1647
	select CPU_HAS_LOAD_STORE_LR
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1648

1649 1650 1651 1652 1653
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1654
	select CPU_SUPPORTS_HUGEPAGES
1655
	select CPU_HAS_LOAD_STORE_LR
1656 1657 1658 1659
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1662
	depends on SYS_HAS_CPU_NEVADA
1663 1664
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1665
	select CPU_SUPPORTS_HUGEPAGES
1666
	select CPU_HAS_LOAD_STORE_LR
L
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R8000
	bool "R8000"
1672
	depends on SYS_HAS_CPU_R8000
1673
	select CPU_HAS_PREFETCH
1674
	select CPU_HAS_LOAD_STORE_LR
1675
	select CPU_SUPPORTS_64BIT_KERNEL
L
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1676 1677 1678 1679 1680 1681
	help
	  MIPS Technologies R8000 processors.  Note these processors are
	  uncommon and the support for them is incomplete.

config CPU_R10000
	bool "R10000"
1682
	depends on SYS_HAS_CPU_R10000
1683
	select CPU_HAS_PREFETCH
1684
	select CPU_HAS_LOAD_STORE_LR
1685 1686
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1688
	select CPU_SUPPORTS_HUGEPAGES
L
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1689 1690 1691 1692 1693
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1694
	depends on SYS_HAS_CPU_RM7000
1695
	select CPU_HAS_PREFETCH
1696
	select CPU_HAS_LOAD_STORE_LR
1697 1698
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1700
	select CPU_SUPPORTS_HUGEPAGES
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1701 1702 1703

config CPU_SB1
	bool "SB1"
1704
	depends on SYS_HAS_CPU_SB1
1705
	select CPU_HAS_LOAD_STORE_LR
1706 1707
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1709
	select CPU_SUPPORTS_HUGEPAGES
1710
	select WEAK_ORDERING
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1711

1712 1713
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1714
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1715
	select CPU_HAS_PREFETCH
1716
	select CPU_HAS_LOAD_STORE_LR
1717 1718 1719
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1720
	select CPU_SUPPORTS_HUGEPAGES
1721 1722
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1723
	select MIPS_L1_CACHE_SHIFT_7
1724
	select HAVE_KVM
1725 1726 1727 1728 1729 1730
	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.

1731 1732 1733 1734
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1735
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1736 1737 1738 1739 1740
	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
1741
	select IRQ_MIPS_CPU
1742 1743
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1744
	select CPU_SUPPORTS_HIGHMEM
1745
	select CPU_HAS_PREFETCH
1746
	select CPU_HAS_LOAD_STORE_LR
1747 1748
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1749
	help
1750
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1751

1752 1753 1754
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1755
	select CPU_HAS_LOAD_STORE_LR
1756 1757 1758
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1759
	select CPU_SUPPORTS_HUGEPAGES
1760 1761 1762 1763
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1764 1765 1766 1767 1768 1769 1770 1771 1772 1773

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
1774
	select CPU_HAS_LOAD_STORE_LR
1775
	select CPU_MIPSR2
1776
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1778 1779
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1782 1783 1784
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1785
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801
	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
1819
	select PHYS_ADDR_T_64BIT
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1820 1821 1822 1823 1824 1825 1826 1827 1828
	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.

1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855
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

1856 1857 1858 1859
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1860
	select HAVE_KERNEL_LZ4
1861
	select HAVE_KERNEL_LZMA
1862
	select HAVE_KERNEL_LZO
1863
	select HAVE_KERNEL_XZ
1864 1865 1866 1867 1868

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1869 1870 1871 1872
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

1873 1874 1875 1876 1877
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1878
	select CPU_SUPPORTS_HUGEPAGES
1879
	select ARCH_HAS_PHYS_TO_DMA
1880
	select CPU_HAS_LOAD_STORE_LR
1881

1882 1883 1884
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
1885
	select CPU_MIPSR2
1886
	select CPU_HAS_PREFETCH
1887
	select CPU_HAS_LOAD_STORE_LR
1888 1889
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1890
	select CPU_SUPPORTS_CPUFREQ
1891

1892
config CPU_BMIPS32_3300
1893
	select SMP_UP if SMP
1894
	bool
1895 1896 1897 1898 1899 1900 1901 1902

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1903
	select MIPS_L1_CACHE_SHIFT_6
1904 1905
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1906
	select CPU_HAS_RIXI
1907 1908 1909 1910

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1911
	select MIPS_L1_CACHE_SHIFT_7
1912 1913
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1914
	select CPU_HAS_RIXI
1915

1916 1917 1918
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ
1919
	select CPU_HAS_RIXI
1920

1921
config SYS_HAS_CPU_LOONGSON2E
1922 1923
	bool

1924 1925
config SYS_HAS_CPU_LOONGSON2F
	bool
1926 1927
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1928
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1929

1930 1931 1932
config SYS_HAS_CPU_LOONGSON1B
	bool

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config SYS_HAS_CPU_LOONGSON1C
	bool

1936 1937 1938 1939 1940 1941
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1942 1943 1944
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1947
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1948

1949 1950
config SYS_HAS_CPU_MIPS32_R6
	bool
1951
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1952

1953 1954 1955 1956 1957 1958
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1959 1960
config SYS_HAS_CPU_MIPS64_R6
	bool
1961
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1962

1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986
config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4300
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

config SYS_HAS_CPU_R5432
	bool

1987 1988 1989
config SYS_HAS_CPU_R5500
	bool

1990 1991 1992 1993 1994 1995 1996 1997
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R8000
	bool

config SYS_HAS_CPU_R10000
	bool
1998
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1999 2000 2001 2002 2003 2004 2005

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2006 2007 2008
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2009
config SYS_HAS_CPU_BMIPS
2010 2011
	bool

2012
config SYS_HAS_CPU_BMIPS32_3300
2013
	bool
2014
	select SYS_HAS_CPU_BMIPS
2015 2016 2017

config SYS_HAS_CPU_BMIPS4350
	bool
2018
	select SYS_HAS_CPU_BMIPS
2019 2020 2021

config SYS_HAS_CPU_BMIPS4380
	bool
2022
	select SYS_HAS_CPU_BMIPS
2023 2024 2025

config SYS_HAS_CPU_BMIPS5000
	bool
2026
	select SYS_HAS_CPU_BMIPS
2027
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2028

2029 2030 2031
config SYS_HAS_CPU_XLR
	bool

2032 2033 2034
config SYS_HAS_CPU_XLP
	bool

2035 2036 2037 2038
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2039 2040
config WEAK_ORDERING
	bool
2041 2042 2043 2044 2045 2046 2047

#
# 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
2048 2049 2050
endmenu

#
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2051
# These two indicate any level of the MIPS32 and MIPS64 architecture
2052 2053 2054
#
config CPU_MIPS32
	bool
2055
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2056 2057 2058

config CPU_MIPS64
	bool
2059
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2060 2061

#
2062
# These indicate the revision of the architecture
2063 2064 2065 2066 2067 2068 2069
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2070
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2071
	select CPU_HAS_RIXI
2072
	select MIPS_SPRAM
2073

2074 2075 2076
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2077
	select CPU_HAS_RIXI
2078
	select HAVE_ARCH_BITREVERSE
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2079
	select MIPS_ASID_BITS_VARIABLE
2080
	select MIPS_CRC_SUPPORT
2081
	select MIPS_SPRAM
2082

2083 2084 2085 2086 2087 2088 2089 2090 2091 2092
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.

2093 2094 2095
config EVA
	bool

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config XPA
	bool

2099 2100 2101 2102 2103 2104 2105 2106
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2107 2108 2109 2110
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2111 2112
config CPU_SUPPORTS_HUGEPAGES
	bool
2113 2114
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
2115 2116
config MIPS_PGD_C0_CONTEXT
	bool
2117
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2118

2119 2120 2121 2122
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2123 2124
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2125

2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141
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.
2142

2143 2144 2145 2146 2147 2148 2149 2150
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

2151 2152
config KVM_GUEST
	bool "KVM Guest Kernel"
2153
	depends on BROKEN_ON_SMP
2154
	help
2155 2156
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2157

2158 2159
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2160
	depends on KVM_GUEST
2161
	default 100
2162
	help
2163 2164 2165
	  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.
2166

2167 2168 2169 2170
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2171 2172 2173 2174 2175 2176 2177
	  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.

2178 2179
	  If unsure, say N.

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2180 2181 2182 2183 2184 2185
choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
2186
	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
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2187
	help
2188 2189 2190 2191
	  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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2192 2193 2194

config PAGE_SIZE_8KB
	bool "8kB"
2195
	depends on CPU_R8000 || CPU_CAVIUM_OCTEON
2196
	depends on !MIPS_VA_BITS_48
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	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
2200 2201
	  only on R8000 and cnMIPS processors.  Note that you will need a
	  suitable Linux distribution to support this.
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2202 2203 2204

config PAGE_SIZE_16KB
	bool "16kB"
2205
	depends on !CPU_R3000 && !CPU_TX39XX
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2206 2207 2208
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2209 2210
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2211

2212 2213 2214
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2215
	depends on !MIPS_VA_BITS_48
2216 2217 2218 2219 2220 2221
	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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2222 2223
config PAGE_SIZE_64KB
	bool "64kB"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
2229
	  writing this option is still high experimental.
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endchoice

2233 2234
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2235 2236 2237 2238 2239 2240
	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
2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256
	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

2264 2265 2266 2267 2268 2269 2270
#
# 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
2288
	bool
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2290 2291
config CPU_GENERIC_DUMP_TLB
	bool
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	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
2293

2294
config MIPS_FP_SUPPORT
2295 2296 2297 2298 2299 2300 2301 2302 2303 2304 2305 2306 2307
	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.
2308

2309 2310
config CPU_R2300_FPU
	bool
2311
	depends on MIPS_FP_SUPPORT
2312 2313
	default y if CPU_R3000 || CPU_TX39XX

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config CPU_R4K_FPU
	bool
2316
	depends on MIPS_FP_SUPPORT
2317
	default y if !CPU_R2300_FPU
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2319 2320 2321 2322
config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON)

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config MIPS_MT_SMP
2324
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2325
	default y
2326
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2327
	select CPU_MIPSR2_IRQ_VI
2328
	select CPU_MIPSR2_IRQ_EI
2329
	select SYNC_R4K
2330
	select MIPS_MT
2331
	select SMP
2332
	select SMP_UP
2333 2334
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2335
	select MIPS_PERF_SHARED_TC_COUNTERS
2336
	help
2337 2338 2339 2340 2341
	  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>.
2342

2343 2344 2345
config MIPS_MT
	bool

2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357
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

2358 2359 2360
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
2365

2366 2367
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2368
	depends on CPU_MIPSR6
2369
	depends on MIPS_FP_SUPPORT
2370 2371 2372 2373
	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
2374
	  default. You can enable it using the 'mipsr2emu' kernel option.
2375 2376 2377
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2378 2379 2380 2381 2382 2383 2384
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2385 2386
config MIPS_VPE_LOADER
	bool "VPE loader support."
2387
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2388 2389 2390 2391 2392 2393
	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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2395 2396 2397 2398 2399
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2400 2401 2402 2403 2404
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2405 2406 2407 2408 2409 2410 2411 2412 2413 2414 2415
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
2416 2417
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2418

2419 2420 2421 2422 2423
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

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

2429
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2431
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2432
	select SMP
2433
	select SYNC_R4K
2434
	select SYS_SUPPORTS_SMP
2435 2436 2437
	select WEAK_ORDERING
	default n
	help
2438 2439 2440
	  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.
2441

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

2445 2446
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2447
	depends on SYS_SUPPORTS_MIPS_CPS
2448
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2450 2451
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2453
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2454 2455 2456 2457 2458 2459 2460 2461 2462
	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.

2463
config MIPS_CPS_PM
2464
	depends on MIPS_CPS
2465 2466
	bool

2467 2468
config MIPS_CM
	bool
2469
	select MIPS_CPC
2470

2471 2472
config MIPS_CPC
	bool
2473

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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

2484 2485 2486 2487 2488 2489 2490 2491
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

2492 2493
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2494
	bool "SmartMIPS"
2495 2496 2497 2498 2499 2500 2501 2502 2503
	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.

2504
config CPU_MICROMIPS
2505
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2506
	bool "microMIPS"
2507 2508 2509 2510
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2511 2512
endchoice

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config CPU_HAS_MSA
2514
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2516
	depends on MIPS_FP_SUPPORT
2517
	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
2521 2522 2523 2524 2525
	  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
2530
	bool
2531

2532 2533 2534
config XKS01
	bool

2535 2536 2537
config CPU_HAS_RIXI
	bool

2538 2539 2540 2541 2542 2543 2544
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).

2545 2546 2547
#
# Vectored interrupt mode is an R2 feature
#
2548
config CPU_MIPSR2_IRQ_VI
2549
	bool
2550

2551 2552 2553
#
# Extended interrupt mode is an R2 feature
#
2554
config CPU_MIPSR2_IRQ_EI
2555
	bool
2556

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2562 2563 2564 2565 2566 2567 2568 2569 2570 2571 2572 2573 2574
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2575 2576 2577 2578 2579 2580 2581 2582
config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 4 if CPU_R8000
	default 0

config MIPS_ASID_BITS
	int
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	default 0 if MIPS_ASID_BITS_VARIABLE
2584 2585 2586
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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2587 2588 2589
config MIPS_ASID_BITS_VARIABLE
	bool

2590 2591 2592
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"
2608
	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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2616 2617 2618
config SYS_SUPPORTS_SMARTMIPS
	bool

2619 2620 2621
config SYS_SUPPORTS_MICROMIPS
	bool

2622 2623 2624 2625 2626 2627 2628
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

2632 2633
config ARCH_FLATMEM_ENABLE
	def_bool y
2634
	depends on !NUMA && !CPU_LOONGSON2
2635

2636 2637 2638 2639
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2640
	  Say Y to support efficient handling of discontiguous physical memory,
2641 2642
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
2643
	  See <file:Documentation/vm/numa.rst> for more.
2644

2645 2646
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2648

2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661
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

2662 2663
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)
2665 2666 2667 2668 2669 2670
	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

2671 2672 2673 2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686
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.

2687 2688 2689 2690
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2691 2692 2693 2694
	  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.
2695

2696
	  Entropy is generated using any coprocessor 0 registers available.
2697

2698
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2699

2700
	  If unsure, say N.
2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716

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

2722 2723
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2724
	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2725 2726 2727 2728 2729
	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"
2732 2733
	depends on SYS_SUPPORTS_SMP
	help
L
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	  This enables support for systems with more than one CPU. If you have
2735 2736
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2737

2738
	  If you say N here, the kernel will run on uni- and multiprocessor
L
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2739 2740
	  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,
2741
	  uniprocessor machines. On a uniprocessor machine, the kernel
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2742 2743 2744 2745 2746
	  will run faster if you say N here.

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

A
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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
L
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2749 2750 2751

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

2752 2753 2754 2755 2756 2757 2758 2759 2760 2761
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.

2762 2763 2764
config SMP_UP
	bool

2765 2766 2767
config SYS_SUPPORTS_MIPS_CMP
	bool

2768 2769 2770
config SYS_SUPPORTS_MIPS_CPS
	bool

2771 2772 2773
config SYS_SUPPORTS_SMP
	bool

2774 2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788
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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2790 2791
	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2793 2794 2795 2796 2797
	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
2802 2803
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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2804 2805

	  This is purely to save memory - each supported CPU adds
2806 2807 2808
	  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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Linus Torvalds 已提交
2809

2810 2811
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2812 2813 2814 2815 2816 2817 2818 2819 2820

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
2821

2822 2823 2824 2825 2826 2827 2828 2829
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2830
	  Allows the configuration of the timer frequency.
2831

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Paul Burton 已提交
2832 2833 2834
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2835
	config HZ_48
2836
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857

	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
2858 2859 2860
config SYS_SUPPORTS_24HZ
	bool

2861 2862 2863 2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883
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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2884 2885 2886 2887 2888 2889 2890
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2891 2892 2893 2894
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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Paul Burton 已提交
2895
	default 24 if HZ_24
2896 2897 2898 2899 2900 2901 2902 2903
	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
2904 2905 2906
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2907
config KEXEC
2908
	bool "Kexec system call"
2909
	select KEXEC_CORE
2910 2911 2912
	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
2913
	  but it is independent of the system firmware.   And like a reboot
2914 2915
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2916
	  The name comes from the similarity to the exec system call.
2917 2918 2919

	  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
2920 2921 2922
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2923

R
Ralf Baechle 已提交
2924
config CRASH_DUMP
2925 2926
	bool "Kernel crash dumps"
	help
R
Ralf Baechle 已提交
2927 2928 2929 2930 2931 2932 2933 2934 2935
	  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
2936
	hex "Physical address where the kernel is loaded"
2937
	default "0xffffffff84000000"
2938 2939
	depends on CRASH_DUMP
	help
R
Ralf Baechle 已提交
2940 2941 2942 2943 2944 2945
	  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).

2946 2947
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2948
	depends on PROC_FS
2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962
	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.

2963
config MIPS_O32_FP64_SUPPORT
2964
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2965 2966 2967 2968 2969 2970 2971 2972 2973 2974 2975 2976
	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.

2977 2978 2979 2980 2981 2982 2983 2984
	  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.
2985

2986
config USE_OF
2987
	bool
2988
	select OF
2989
	select OF_EARLY_FLATTREE
2990
	select IRQ_DOMAIN
2991

2992 2993 2994
config UHI_BOOT
	bool

2995 2996 2997
config BUILTIN_DTB
	bool

2998
choice
2999
	prompt "Kernel appended dtb support" if USE_OF
3000 3001 3002 3003 3004 3005 3006
	default MIPS_NO_APPENDED_DTB

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

3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020
	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.

3021
	config MIPS_RAW_APPENDED_DTB
3022
		bool "vmlinux.bin or vmlinuz.bin"
3023 3024
		help
		  With this option, the boot code will look for a device tree binary
3025
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038
		  (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

3039 3040
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3041
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3042
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3043
					 !CAVIUM_OCTEON_SOC
3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055
	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"
3056 3057 3058 3059

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3060 3061
endchoice

3062 3063
endmenu

3064 3065 3066 3067 3068 3069 3070 3071
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

A
Aaro Koskinen 已提交
3072 3073 3074 3075
config HAVE_LATENCYTOP_SUPPORT
	bool
	default y

3076 3077
config PGTABLE_LEVELS
	int
3078
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3079 3080 3081
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3082 3083 3084
config MIPS_AUTO_PFN_OFFSET
	bool

L
Linus Torvalds 已提交
3085 3086
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3087
config PCI_DRIVERS_GENERIC
3088
	select PCI_DOMAINS_GENERIC if PCI
3089 3090 3091 3092 3093
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3094
	select PCI_DOMAINS if PCI
L
Linus Torvalds 已提交
3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107

#
# 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
3108 3109 3110 3111 3112 3113 3114 3115
	  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
3116 3117 3118 3119 3120

config MMU
	bool
	default y

3121 3122 3123 3124 3125 3126 3127 3128 3129
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
3130
	default 8
3131 3132

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3133
	default 15
3134

3135 3136
config I8253
	bool
3137
	select CLKSRC_I8253
3138
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3139
	select MIPS_EXTERNAL_TIMER
3140

3141 3142 3143
config ZONE_DMA
	bool

3144 3145 3146
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3147 3148 3149 3150 3151 3152
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3153
	bool
L
Linus Torvalds 已提交
3154 3155 3156 3157

config COMPAT
	bool

3158 3159 3160
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3161 3162
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3163 3164 3165 3166 3167
	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
3168 3169 3170 3171 3172 3173 3174 3175 3176
	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"
3177
	depends on 64BIT
3178
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3179 3180 3181
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3182 3183 3184 3185 3186 3187 3188 3189 3190 3191 3192
	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
3193
	select ELFCORE
L
Linus Torvalds 已提交
3194

3195 3196
menu "Power management options"

W
Wu Zhangjin 已提交
3197 3198
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3199
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3200

J
Johannes Berg 已提交
3201 3202
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3203
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3204

3205
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3206

L
Linus Torvalds 已提交
3207 3208
endmenu

3209 3210 3211 3212
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3213 3214

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3215 3216
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3217

P
Paul Burton 已提交
3218 3219 3220 3221
source "drivers/cpuidle/Kconfig"

endmenu

3222 3223
source "drivers/firmware/Kconfig"

3224
source "arch/mips/kvm/Kconfig"