Kconfig 81.8 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
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	select ARCH_HAS_FORTIFY_SOURCE
	select ARCH_HAS_KCOV
	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	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_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select BUILDTIME_TABLE_SORT
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	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_CBPF_JIT if !64BIT && !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_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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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
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	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
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	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_SPARSE_SYSCALL_NR
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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_REL if MODULES
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	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_EI
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	select CPU_MIPSR2_IRQ_VI
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	select CSRC_R4K
	select DMA_PERDEV_COHERENT
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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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 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_MIPS16
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	select SYS_SUPPORTS_MIPS_CPS
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	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
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	select UHI_BOOT
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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
	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 ARC_MEMORY
	select ARC_PROMLIB
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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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
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	bool "Loongson 32-bit 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_LOONGSON2EF
	bool "Loongson-2E/F family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of early Loongson-2E/F family of machines.
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config MACH_LOONGSON64
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	bool "Loongson 64-bit family of machines"
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	select ARCH_SPARSEMEM_ENABLE
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select BOOT_ELF32
	select BOARD_SCACHE
	select CSRC_R4K
	select CEVT_R4K
	select CPU_HAS_WB
	select FORCE_PCI
	select ISA
	select I8259
	select IRQ_MIPS_CPU
	select NR_CPUS_DEFAULT_4
	select USE_GENERIC_EARLY_PRINTK_8250
	select SYS_HAS_CPU_LOONGSON64
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT
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	select LOONGSON_MC146818
	select ZONE_DMA32
	select NUMA
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	help
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	  This enables the support of Loongson-2/3 family of machines.

	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
	  and Loongson-2F which will be removed), developed by the Institute
	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
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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 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.

L
Linus Torvalds 已提交
529
config MIPS_MALTA
530
	bool "MIPS Malta board"
531
	select ARCH_MAY_HAVE_PC_FDC
532
	select ARCH_MIGHT_HAVE_PC_PARPORT
533
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
534
	select BOOT_ELF32
535
	select BOOT_RAW
P
Paul Burton 已提交
536
	select BUILTIN_DTB
537
	select CEVT_R4K
538
	select CLKSRC_MIPS_GIC
539
	select COMMON_CLK
540
	select CSRC_R4K
541
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
542
	select GENERIC_ISA_DMA
543
	select HAVE_PCSPKR_PLATFORM
544
	select HAVE_PCI
545
	select I8253
L
Linus Torvalds 已提交
546
	select I8259
547
	select IRQ_MIPS_CPU
548
	select MIPS_BONITO64
549
	select MIPS_CPU_SCACHE
550
	select MIPS_GIC
551
	select MIPS_L1_CACHE_SHIFT_6
552
	select MIPS_MSC
553
	select PCI_GT64XXX_PCI0
554
	select SMP_UP if SMP
L
Linus Torvalds 已提交
555
	select SWAP_IO_SPACE
556 557
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
558
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
559
	select SYS_HAS_CPU_MIPS32_R5
560
	select SYS_HAS_CPU_MIPS32_R6
561
	select SYS_HAS_CPU_MIPS64_R1
562
	select SYS_HAS_CPU_MIPS64_R2
563
	select SYS_HAS_CPU_MIPS64_R6
564 565
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
566 567
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
568
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
569
	select SYS_SUPPORTS_HIGHMEM
570
	select SYS_SUPPORTS_LITTLE_ENDIAN
571
	select SYS_SUPPORTS_MICROMIPS
572
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
573
	select SYS_SUPPORTS_MIPS_CMP
574
	select SYS_SUPPORTS_MIPS_CPS
575
	select SYS_SUPPORTS_MULTITHREADING
576
	select SYS_SUPPORTS_RELOCATABLE
577
	select SYS_SUPPORTS_SMARTMIPS
578
	select SYS_SUPPORTS_VPE_LOADER
579
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
580
	select USE_OF
581
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
582
	help
583
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
584 585
	  board.

586 587 588 589 590 591 592 593
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.

594 595 596
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
597
	select HAVE_PCI
598 599
	help
	  This enables support for the NEC Electronics Mark-eins boards.
600

601
config MACH_VR41XX
602
	bool "NEC VR4100 series based machines"
603
	select CEVT_R4K
604
	select CSRC_R4K
605
	select SYS_HAS_CPU_VR41XX
606
	select SYS_SUPPORTS_MIPS16
607
	select GPIOLIB
608

609 610 611 612
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
613
	  Support for NXP Semiconductors STB220 Development Board.
614 615 616 617 618 619

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
620
	  Support for NXP Semiconductors STB225 Development Board.
621

M
Marc St-Jean 已提交
622 623
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
624 625
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
626 627 628 629 630 631 632 633
	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
634
	select SYS_SUPPORTS_MIPS16
635
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
636 637
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
638 639
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
640 641 642 643 644 645
	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
646 647 648 649 650 651
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
652
	select IRQ_MIPS_CPU
J
John Crispin 已提交
653 654 655 656 657
	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
658
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
659 660
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
661 662
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
663

L
Linus Torvalds 已提交
664
config SGI_IP22
665
	bool "SGI IP22 (Indy/Indigo2)"
666
	select ARC_MEMORY
667
	select ARC_PROMLIB
668 669
	select FW_ARC
	select FW_ARC32
670
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
671
	select BOOT_ELF32
672
	select CEVT_R4K
673
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
674
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
675
	select DMA_NONCOHERENT
676
	select HAVE_EISA
677
	select I8253
678
	select I8259
L
Linus Torvalds 已提交
679
	select IP22_CPU_SCACHE
680
	select IRQ_MIPS_CPU
681
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
682 683
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
684
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
685 686 687
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
688
	select SWAP_IO_SPACE
689 690
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
691
	select SYS_HAS_EARLY_PRINTK
692 693
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
694
	select SYS_SUPPORTS_BIG_ENDIAN
695
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
696 697 698 699 700 701
	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
702
	bool "SGI IP27 (Origin200/2000)"
703
	select ARCH_HAS_PHYS_TO_DMA
704
	select ARCH_SPARSEMEM_ENABLE
705 706
	select FW_ARC
	select FW_ARC64
707
	select ARC_CMDLINE_ONLY
708
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
709
	select DEFAULT_SGI_PARTITION
710
	select SYS_HAS_EARLY_PRINTK
711
	select HAVE_PCI
712
	select IRQ_MIPS_CPU
713
	select IRQ_DOMAIN_HIERARCHY
714
	select NR_CPUS_DEFAULT_64
715 716
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
717
	select SYS_HAS_CPU_R10000
718
	select SYS_SUPPORTS_64BIT_KERNEL
719
	select SYS_SUPPORTS_BIG_ENDIAN
720
	select SYS_SUPPORTS_NUMA
721
	select SYS_SUPPORTS_SMP
722
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
723 724 725 726 727
	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
728
config SGI_IP28
729
	bool "SGI IP28 (Indigo2 R10k)"
730
	select ARC_MEMORY
731
	select ARC_PROMLIB
732 733
	select FW_ARC
	select FW_ARC64
734
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
735 736 737 738 739 740
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
741
	select IRQ_MIPS_CPU
742
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
743 744 745 746
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
747
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
748 749 750 751 752
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
753
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
754 755
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
756
	select MIPS_L1_CACHE_SHIFT_7
757 758 759
	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
760

761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787
config SGI_IP30
	bool "SGI IP30 (Octane/Octane2)"
	select ARCH_HAS_PHYS_TO_DMA
	select FW_ARC
	select FW_ARC64
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K if SMP
	select ZONE_DMA32
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select IRQ_DOMAIN_HIERARCHY
	select NR_CPUS_DEFAULT_2
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_R10000
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_SMP
	select MIPS_L1_CACHE_SHIFT_7
	select ARC_MEMORY
	help
	  These are the SGI Octane and Octane2 graphics workstations.  To
	  compile a Linux kernel that runs on these, say Y here.

L
Linus Torvalds 已提交
788
config SGI_IP32
789
	bool "SGI IP32 (O2)"
790 791
	select ARC_MEMORY
	select ARC_PROMLIB
792
	select ARCH_HAS_PHYS_TO_DMA
793 794
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
795
	select BOOT_ELF32
796
	select CEVT_R4K
797
	select CSRC_R4K
L
Linus Torvalds 已提交
798
	select DMA_NONCOHERENT
799
	select HAVE_PCI
800
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
801 802
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
803 804 805
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
806
	select SYS_HAS_CPU_NEVADA
807
	select SYS_SUPPORTS_64BIT_KERNEL
808 809
	select SYS_SUPPORTS_BIG_ENDIAN
	help
810
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
811

812 813
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
814
	select BOOT_ELF32
815
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
816
	select SWAP_IO_SPACE
817
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
818 819 820
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

821 822
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
823
	select BOOT_ELF32
824
	select SIBYTE_BCM1120
825
	select SWAP_IO_SPACE
826
	select SYS_HAS_CPU_SB1
827
	select SYS_SUPPORTS_BIG_ENDIAN
828
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
829

830 831
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
832
	select BOOT_ELF32
833
	select SIBYTE_BCM1125
834
	select SWAP_IO_SPACE
835
	select SYS_HAS_CPU_SB1
836
	select SYS_SUPPORTS_BIG_ENDIAN
837
	select SYS_SUPPORTS_HIGHMEM
838
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
839

840
config SIBYTE_RHONE
841
	bool "Sibyte BCM91125E-Rhone"
842 843 844
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
845
	select SYS_HAS_CPU_SB1
846 847
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
848

849 850
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
851
	select BOOT_ELF32
852
	select HAVE_PATA_PLATFORM
853
	select SIBYTE_SB1250
854
	select SWAP_IO_SPACE
855
	select SYS_HAS_CPU_SB1
856
	select SYS_SUPPORTS_BIG_ENDIAN
857
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
858
	select SYS_SUPPORTS_LITTLE_ENDIAN
859
	select ZONE_DMA32 if 64BIT
860
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
861

862 863
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
864
	select BOOT_ELF32
865
	select HAVE_PATA_PLATFORM
866 867
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
868
	select SYS_HAS_CPU_SB1
869 870 871
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
872
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
873

874 875
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
876 877 878
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
879
	select SYS_HAS_CPU_SB1
880 881
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
882
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
883

884 885
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
886
	select BOOT_ELF32
887 888
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
889
	select SWAP_IO_SPACE
890
	select SYS_HAS_CPU_SB1
891
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
892
	select SYS_SUPPORTS_HIGHMEM
893
	select SYS_SUPPORTS_LITTLE_ENDIAN
894
	select ZONE_DMA32 if 64BIT
895
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
896

897 898
config SNI_RM
	bool "SNI RM200/300/400"
899 900
	select ARC_MEMORY
	select ARC_PROMLIB
901 902
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
903
	select FW_SNIPROM if CPU_BIG_ENDIAN
904
	select ARCH_MAY_HAVE_PC_FDC
905
	select ARCH_MIGHT_HAVE_PC_PARPORT
906
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
907
	select BOOT_ELF32
908
	select CEVT_R4K
909
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
910
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
911 912
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
913
	select HAVE_EISA
914
	select HAVE_PCSPKR_PLATFORM
915
	select HAVE_PCI
916
	select IRQ_MIPS_CPU
917
	select I8253
L
Linus Torvalds 已提交
918 919
	select I8259
	select ISA
920
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
921
	select SYS_HAS_CPU_R4X00
922
	select SYS_HAS_CPU_R5000
923
	select SYS_HAS_CPU_R10000
924
	select R5000_CPU_SCACHE
925
	select SYS_HAS_EARLY_PRINTK
926
	select SYS_SUPPORTS_32BIT_KERNEL
927
	select SYS_SUPPORTS_64BIT_KERNEL
928
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
929
	select SYS_SUPPORTS_HIGHMEM
930
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
931
	help
932 933
	  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
934 935 936
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

937 938
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
939

940 941
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
942

943 944 945 946 947
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
948
	select HAVE_PCI
949
	select IRQ_MIPS_CPU
950 951 952 953 954
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
955
	select GPIOLIB
956
	select MIPS_L1_CACHE_SHIFT_4
957 958 959 960
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

961 962
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
963
	select CEVT_R4K
964
	select ARCH_HAS_PHYS_TO_DMA
965
	select HAVE_RAPIDIO
966
	select PHYS_ADDR_T_64BIT
967 968
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
969
	select EDAC_SUPPORT
970
	select EDAC_ATOMIC_SCRUB
971 972
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
973
	select SYS_HAS_EARLY_PRINTK
974
	select SYS_HAS_CPU_CAVIUM_OCTEON
975
	select HAVE_PCI
D
David Daney 已提交
976
	select ZONE_DMA32
977
	select HOLES_IN_ZONE
978
	select GPIOLIB
979 980 981
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
982 983
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
984
	select BUILTIN_DTB
985
	select MTD_COMPLEX_MAPPINGS
986
	select SWIOTLB
S
Steven J. Hill 已提交
987
	select SYS_SUPPORTS_RELOCATABLE
988 989 990 991 992 993 994 995 996 997 998 999 1000
	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.

1001 1002 1003 1004 1005 1006
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
1007
	select HAVE_PCI
1008 1009 1010
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1011
	select PHYS_ADDR_T_64BIT
1012 1013 1014 1015 1016
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
1017
	select IRQ_MIPS_CPU
1018
	select ZONE_DMA32 if 64BIT
1019 1020
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1021 1022
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1023 1024 1025 1026
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

1027 1028 1029 1030 1031 1032
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
1033
	select HAVE_PCI
1034 1035
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1036
	select PHYS_ADDR_T_64BIT
1037
	select GPIOLIB
1038 1039 1040 1041 1042 1043
	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
1044
	select IRQ_MIPS_CPU
1045
	select ZONE_DMA32 if 64BIT
1046 1047
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1048
	select USE_OF
1049 1050
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1051 1052 1053 1054
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067
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
1068
	select HAVE_PCI
1069 1070 1071 1072
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1073
endchoice
L
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1074

R
Ralf Baechle 已提交
1075
source "arch/mips/alchemy/Kconfig"
1076
source "arch/mips/ath25/Kconfig"
1077
source "arch/mips/ath79/Kconfig"
1078
source "arch/mips/bcm47xx/Kconfig"
1079
source "arch/mips/bcm63xx/Kconfig"
1080
source "arch/mips/bmips/Kconfig"
1081
source "arch/mips/generic/Kconfig"
1082
source "arch/mips/jazz/Kconfig"
1083
source "arch/mips/jz4740/Kconfig"
1084
source "arch/mips/lantiq/Kconfig"
1085
source "arch/mips/lasat/Kconfig"
1086
source "arch/mips/pic32/Kconfig"
1087
source "arch/mips/pistachio/Kconfig"
R
Ralf Baechle 已提交
1088
source "arch/mips/pmcs-msp71xx/Kconfig"
J
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1089
source "arch/mips/ralink/Kconfig"
1090
source "arch/mips/sgi-ip27/Kconfig"
1091
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1092
source "arch/mips/txx9/Kconfig"
1093
source "arch/mips/vr41xx/Kconfig"
1094
source "arch/mips/cavium-octeon/Kconfig"
1095
source "arch/mips/loongson2ef/Kconfig"
1096 1097
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1098
source "arch/mips/netlogic/Kconfig"
1099
source "arch/mips/paravirt/Kconfig"
1100

1101 1102
endmenu

1103 1104 1105 1106
config GENERIC_HWEIGHT
	bool
	default y

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1107 1108 1109 1110
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1111
config SCHED_OMIT_FRAME_POINTER
1112 1113 1114
	bool
	default y

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1115 1116 1117
#
# Select some configuration options automatically based on user selections.
#
1118
config FW_ARC
L
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1119 1120
	bool

1121 1122 1123
config ARCH_MAY_HAVE_PC_FDC
	bool

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1124 1125 1126
config BOOT_RAW
	bool

1127 1128 1129
config CEVT_BCM1480
	bool

1130 1131 1132
config CEVT_DS1287
	bool

1133 1134 1135
config CEVT_GT641XX
	bool

1136 1137 1138
config CEVT_R4K
	bool

1139 1140 1141
config CEVT_SB1250
	bool

1142 1143 1144
config CEVT_TXX9
	bool

1145 1146 1147
config CSRC_BCM1480
	bool

1148 1149 1150
config CSRC_IOASIC
	bool

1151 1152 1153
config CSRC_R4K
	bool

1154 1155 1156
config CSRC_SB1250
	bool

1157 1158 1159
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1160
config GPIO_TXX9
1161
	select GPIOLIB
1162 1163
	bool

1164
config FW_CFE
1165 1166
	bool

R
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1167 1168 1169
config ARCH_SUPPORTS_UPROBES
	bool

1170
config DMA_MAYBE_COHERENT
1171
	select ARCH_HAS_DMA_COHERENCE_H
1172 1173 1174
	select DMA_NONCOHERENT
	bool

1175 1176
config DMA_PERDEV_COHERENT
	bool
1177
	select ARCH_HAS_SETUP_DMA_OPS
1178
	select DMA_NONCOHERENT
1179

1180 1181
config DMA_NONCOHERENT
	bool
1182 1183 1184 1185 1186 1187 1188
	#
	# MIPS allows mixing "slightly different" Cacheability and Coherency
	# Attribute bits.  It is believed that the uncached access through
	# KSEG1 and the implementation specific "uncached accelerated" used
	# by pgprot_writcombine can be mixed, and the latter sometimes provides
	# significant advantages.
	#
1189
	select ARCH_HAS_DMA_WRITE_COMBINE
1190
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1191
	select ARCH_HAS_UNCACHED_SEGMENT
1192
	select DMA_NONCOHERENT_MMAP
1193
	select DMA_NONCOHERENT_CACHE_SYNC
1194
	select NEED_DMA_MAP_STATE
1195

1196
config SYS_HAS_EARLY_PRINTK
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1197 1198
	bool

1199
config SYS_SUPPORTS_HOTPLUG_CPU
1200 1201
	bool

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1202 1203 1204 1205 1206 1207
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1208 1209 1210
config MIPS_NILE4
	bool

1211 1212 1213
config SYNC_R4K
	bool

1214 1215 1216
config MIPS_MACHINE
	def_bool n

1217
config NO_IOPORT_MAP
1218 1219
	def_bool n

1220
config GENERIC_CSUM
1221
	def_bool CPU_NO_LOAD_STORE_LR
1222

1223 1224 1225
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1226
	select ISA_DMA_API
1227

1228 1229
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1230
	select GENERIC_ISA_DMA
1231

1232 1233 1234
config ISA_DMA_API
	bool

1235 1236 1237
config HOLES_IN_ZONE
	bool

1238 1239 1240
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1241 1242 1243
	  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.
1244

D
David Daney 已提交
1245 1246 1247 1248 1249 1250 1251 1252 1253
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


1254
#
M
Masanari Iida 已提交
1255
# Endianness selection.  Sufficiently obscure so many users don't know what to
1256 1257 1258 1259
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
M
Masanari Iida 已提交
1260
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1261 1262
	help
	  Some MIPS machines can be configured for either little or big endian
1263
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1264
	  Linux distribution.  In general there is one preferred byteorder for a
1265
	  particular system but some systems are just as commonly used in the
1266
	  one or the other endianness.
1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277

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

1278 1279 1280
config EXPORT_UASM
	bool

1281 1282 1283
config SYS_SUPPORTS_APM_EMULATION
	bool

1284 1285 1286 1287 1288
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1289

1290 1291
config SYS_SUPPORTS_HUGETLBFS
	bool
1292
	depends on CPU_SUPPORTS_HUGEPAGES
1293 1294
	default y

1295 1296 1297
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
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1298 1299 1300
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1301 1302 1303 1304 1305 1306
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1307 1308 1309
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1310 1311 1312
config IRQ_GT641XX
	bool

1313
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1314 1315
	bool

1316 1317 1318
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1319 1320 1321
config NO_EXCEPT_FILL
	bool

1322 1323 1324 1325 1326
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1327
	select IRQ_MIPS_CPU
1328 1329 1330 1331 1332 1333
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1334 1335 1336 1337
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1338
	select IRQ_MIPS_CPU
1339 1340 1341 1342 1343
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1344
	select SYS_SUPPORTS_MIPS16
1345 1346 1347 1348 1349 1350
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1351 1352 1353
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1354 1355 1356
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1357 1358 1359
config SGI_HAS_INDYDOG
	bool

1360 1361 1362
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377
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

1378
config FW_ARC32
1379 1380
	bool

P
Paul Bolle 已提交
1381
config FW_SNIPROM
1382 1383
	bool

L
Linus Torvalds 已提交
1384 1385 1386
config BOOT_ELF32
	bool

1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398
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

L
Linus Torvalds 已提交
1399 1400
config MIPS_L1_CACHE_SHIFT
	int
1401
	default "7" if MIPS_L1_CACHE_SHIFT_7
1402 1403 1404
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
L
Linus Torvalds 已提交
1405 1406 1407 1408 1409
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

1410 1411 1412
config ARC_CMDLINE_ONLY
	bool

L
Linus Torvalds 已提交
1413 1414
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1415
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1416 1417 1418 1419 1420 1421 1422

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1423
config FW_ARC64
L
Linus Torvalds 已提交
1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1435
config CPU_LOONGSON64
1436
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1437
	depends on SYS_HAS_CPU_LOONGSON64
1438
	select ARCH_HAS_PHYS_TO_DMA
1439 1440
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1441 1442 1443
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1444
	select CPU_SUPPORTS_MSA
1445 1446
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1447 1448
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1449
	select MIPS_ASID_BITS_VARIABLE
1450
	select MIPS_PGD_C0_CONTEXT
1451
	select MIPS_L1_CACHE_SHIFT_6
1452
	select GPIOLIB
1453
	select SWIOTLB
1454
	help
1455 1456 1457 1458 1459 1460 1461 1462
		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
		cores implements the MIPS64R2 instruction set with many extensions,
		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
		Loongson-2E/2F is not covered here and will be removed in future.

config LOONGSON3_ENHANCEMENT
	bool "New Loongson-3 CPU Enhancements"
1463
	default n
J
Jiaxun Yang 已提交
1464
	depends on CPU_LOONGSON64
1465
	help
1466
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1467
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1468
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1469 1470 1471 1472 1473 1474
	  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
1475
	  new Loongson-3 machines only, please say 'Y' here.
1476

1477
config CPU_LOONGSON3_WORKAROUNDS
1478
	bool "Old Loongson-3 LLSC Workarounds"
1479
	default y if SMP
J
Jiaxun Yang 已提交
1480
	depends on CPU_LOONGSON64
1481
	help
1482
	  Loongson-3 processors have the llsc issues which require workarounds.
1483 1484
	  Without workarounds the system may hang unexpectedly.

1485
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1486 1487 1488 1489 1490 1491
	  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.

1492 1493 1494
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1495
	select CPU_LOONGSON2EF
1496 1497 1498 1499
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1500
	  It has an internal FPGA northbridge, which is compatible to
1501 1502 1503 1504 1505
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1506
	select CPU_LOONGSON2EF
1507
	select GPIOLIB
1508 1509 1510 1511 1512 1513 1514 1515
	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.

1516 1517 1518
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1519
	select CPU_LOONGSON32
1520
	select LEDS_GPIO_REGISTER
1521 1522
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1523 1524
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1525

Y
Yang Ling 已提交
1526 1527 1528
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1529
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1530 1531 1532
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1533 1534
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1535

1536 1537
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1538
	depends on SYS_HAS_CPU_MIPS32_R1
1539
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1540
	select CPU_SUPPORTS_32BIT_KERNEL
1541
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1542
	help
1543
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554
	  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"
1555
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1556
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1557
	select CPU_SUPPORTS_32BIT_KERNEL
1558
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1559
	select CPU_SUPPORTS_MSA
1560
	select HAVE_KVM
1561
	help
1562
	  Choose this option to build a kernel for release 2 or later of the
1563 1564 1565 1566 1567
	  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.

1568
config CPU_MIPS32_R6
1569
	bool "MIPS32 Release 6"
1570 1571
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1572
	select CPU_NO_LOAD_STORE_LR
1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583
	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.

1584 1585
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1586
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1587
	select CPU_HAS_PREFETCH
1588 1589
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1590
	select CPU_SUPPORTS_HIGHMEM
1591
	select CPU_SUPPORTS_HUGEPAGES
1592 1593 1594 1595 1596 1597
	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
Ralf Baechle 已提交
1598 1599 1600 1601 1602 1603 1604
	  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"
1605
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1606
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1607 1608
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1609
	select CPU_SUPPORTS_HIGHMEM
1610
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1611
	select CPU_SUPPORTS_MSA
1612
	select HAVE_KVM
R
Ralf Baechle 已提交
1613 1614 1615 1616 1617 1618
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
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1620
config CPU_MIPS64_R6
1621
	bool "MIPS64 Release 6"
1622 1623
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1624
	select CPU_NO_LOAD_STORE_LR
1625 1626 1627
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1628
	select CPU_SUPPORTS_HUGEPAGES
1629
	select CPU_SUPPORTS_MSA
1630
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1631
	select HAVE_KVM
1632 1633 1634 1635 1636 1637
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS64r6 processor. If you own an older
	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.

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config CPU_R3000
	bool "R3000"
1640
	depends on SYS_HAS_CPU_R3000
1641
	select CPU_HAS_WB
1642
	select CPU_R3K_TLB
1643
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
1655
	depends on SYS_HAS_CPU_TX39XX
1656
	select CPU_SUPPORTS_32BIT_KERNEL
1657
	select CPU_R3K_TLB
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config CPU_VR41XX
	bool "R41xx"
1661
	depends on SYS_HAS_CPU_VR41XX
1662 1663
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1664
	help
1665
	  The options selects support for the NEC VR4100 series of processors.
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	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4X00
	bool "R4x00"
1672
	depends on SYS_HAS_CPU_R4X00
1673 1674
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1675
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1682
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1684 1685
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1686
	select CPU_SUPPORTS_HUGEPAGES
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1687 1688 1689

config CPU_R5000
	bool "R5000"
1690
	depends on SYS_HAS_CPU_R5000
1691 1692
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1693
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1697 1698 1699 1700 1701
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1702
	select CPU_SUPPORTS_HUGEPAGES
1703 1704 1705 1706
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1709
	depends on SYS_HAS_CPU_NEVADA
1710 1711
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1712
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1718
	depends on SYS_HAS_CPU_R10000
1719
	select CPU_HAS_PREFETCH
1720 1721
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1723
	select CPU_SUPPORTS_HUGEPAGES
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1724 1725 1726 1727 1728
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1729
	depends on SYS_HAS_CPU_RM7000
1730
	select CPU_HAS_PREFETCH
1731 1732
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1734
	select CPU_SUPPORTS_HUGEPAGES
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1735 1736 1737

config CPU_SB1
	bool "SB1"
1738
	depends on SYS_HAS_CPU_SB1
1739 1740
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1742
	select CPU_SUPPORTS_HUGEPAGES
1743
	select WEAK_ORDERING
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1744

1745 1746
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1747
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1748 1749 1750 1751
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1752
	select CPU_SUPPORTS_HUGEPAGES
1753 1754
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1755
	select MIPS_L1_CACHE_SHIFT_7
1756
	select HAVE_KVM
1757 1758 1759 1760 1761 1762
	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.

1763 1764 1765 1766
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1767
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1768 1769 1770 1771 1772
	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
1773
	select IRQ_MIPS_CPU
1774 1775
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1776
	select CPU_SUPPORTS_HIGHMEM
1777
	select CPU_HAS_PREFETCH
1778 1779
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1780
	help
1781
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1782

1783 1784 1785 1786 1787 1788
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1789
	select CPU_SUPPORTS_HUGEPAGES
1790 1791 1792 1793
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1794 1795 1796 1797 1798 1799 1800 1801 1802 1803

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
1804
	select CPU_MIPSR2
1805
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1807 1808
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1811 1812 1813
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1814
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830
	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
1848
	select PHYS_ADDR_T_64BIT
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	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  If unsure, say 'N' here.

1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884
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

1885 1886 1887 1888
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1889
	select HAVE_KERNEL_LZ4
1890
	select HAVE_KERNEL_LZMA
1891
	select HAVE_KERNEL_LZO
1892
	select HAVE_KERNEL_XZ
1893 1894 1895 1896 1897

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1898 1899 1900 1901
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1903 1904 1905 1906
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1907
	select CPU_SUPPORTS_HUGEPAGES
1908
	select ARCH_HAS_PHYS_TO_DMA
1909

1910
config CPU_LOONGSON32
1911 1912
	bool
	select CPU_MIPS32
1913
	select CPU_MIPSR2
1914 1915 1916
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1917
	select CPU_SUPPORTS_CPUFREQ
1918

1919
config CPU_BMIPS32_3300
1920
	select SMP_UP if SMP
1921
	bool
1922 1923 1924 1925 1926 1927 1928 1929

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1930
	select MIPS_L1_CACHE_SHIFT_6
1931 1932
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1933
	select CPU_HAS_RIXI
1934 1935 1936 1937

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1938
	select MIPS_L1_CACHE_SHIFT_7
1939 1940
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1941
	select CPU_HAS_RIXI
1942

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1943
config SYS_HAS_CPU_LOONGSON64
1944 1945
	bool
	select CPU_SUPPORTS_CPUFREQ
1946
	select CPU_HAS_RIXI
1947

1948
config SYS_HAS_CPU_LOONGSON2E
1949 1950
	bool

1951 1952
config SYS_HAS_CPU_LOONGSON2F
	bool
1953 1954
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1955

1956 1957 1958
config SYS_HAS_CPU_LOONGSON1B
	bool

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1959 1960 1961
config SYS_HAS_CPU_LOONGSON1C
	bool

1962 1963 1964 1965 1966 1967
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1968 1969 1970
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1973
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1974

1975 1976
config SYS_HAS_CPU_MIPS32_R6
	bool
1977
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1978

1979 1980 1981 1982 1983 1984
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1985 1986
config SYS_HAS_CPU_MIPS64_R6
	bool
1987
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1988

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006
config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

2007 2008 2009
config SYS_HAS_CPU_R5500
	bool

2010 2011 2012 2013 2014
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2015
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2016 2017 2018 2019 2020 2021 2022

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2023 2024 2025
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2026
config SYS_HAS_CPU_BMIPS
2027 2028
	bool

2029
config SYS_HAS_CPU_BMIPS32_3300
2030
	bool
2031
	select SYS_HAS_CPU_BMIPS
2032 2033 2034

config SYS_HAS_CPU_BMIPS4350
	bool
2035
	select SYS_HAS_CPU_BMIPS
2036 2037 2038

config SYS_HAS_CPU_BMIPS4380
	bool
2039
	select SYS_HAS_CPU_BMIPS
2040 2041 2042

config SYS_HAS_CPU_BMIPS5000
	bool
2043
	select SYS_HAS_CPU_BMIPS
2044
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2045

2046 2047 2048
config SYS_HAS_CPU_XLR
	bool

2049 2050 2051
config SYS_HAS_CPU_XLP
	bool

2052 2053 2054 2055
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2056 2057
config WEAK_ORDERING
	bool
2058 2059 2060 2061 2062 2063 2064

#
# 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
2065 2066 2067
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2069 2070 2071
#
config CPU_MIPS32
	bool
2072
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2073 2074 2075

config CPU_MIPS64
	bool
2076
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2077 2078

#
2079
# These indicate the revision of the architecture
2080 2081 2082 2083 2084 2085 2086
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2087
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2088
	select CPU_HAS_RIXI
2089
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2090
	select MIPS_SPRAM
2091

2092 2093 2094
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2095
	select CPU_HAS_RIXI
2096
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2097
	select HAVE_ARCH_BITREVERSE
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2098
	select MIPS_ASID_BITS_VARIABLE
2099
	select MIPS_CRC_SUPPORT
2100
	select MIPS_SPRAM
2101

2102 2103 2104 2105 2106 2107 2108 2109 2110 2111
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.

2112 2113 2114
config EVA
	bool

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2115 2116 2117
config XPA
	bool

2118 2119 2120 2121 2122 2123 2124 2125
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2126 2127 2128 2129
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2130 2131
config CPU_SUPPORTS_HUGEPAGES
	bool
2132
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2133 2134
config MIPS_PGD_C0_CONTEXT
	bool
2135
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2136

2137 2138 2139 2140
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2141 2142
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2143

2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159
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.
2160

2161 2162 2163 2164 2165 2166 2167 2168
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

2169 2170
config KVM_GUEST
	bool "KVM Guest Kernel"
2171
	depends on BROKEN_ON_SMP
2172
	help
2173 2174
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2175

2176 2177
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2178
	depends on KVM_GUEST
2179
	default 100
2180
	help
2181 2182 2183
	  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.
2184

2185 2186 2187 2188
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2189 2190 2191 2192 2193 2194 2195
	  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.

2196 2197
	  If unsure, say N.

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2198 2199 2200 2201 2202 2203
choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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2204
	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
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2205
	help
2206 2207 2208 2209
	  This option select the standard 4kB Linux page size.  On some
	  R3000-family processors this is the only available page size.  Using
	  4kB page size will minimize memory consumption and is therefore
	  recommended for low memory systems.
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config PAGE_SIZE_8KB
	bool "8kB"
2213
	depends on CPU_CAVIUM_OCTEON
2214
	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
2218 2219
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.
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config PAGE_SIZE_16KB
	bool "16kB"
2223
	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2227 2228
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2230 2231 2232
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2233
	depends on !MIPS_VA_BITS_48
2234 2235 2236 2237 2238 2239
	help
	  Using 32kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on cnMIPS cores.  Note that you will need a suitable Linux
	  distribution to support this.

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config PAGE_SIZE_64KB
	bool "64kB"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
2247
	  writing this option is still high experimental.
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endchoice

2251 2252
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2253 2254 2255 2256 2257 2258
	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
2259 2260 2261 2262 2263 2264 2265 2266 2267 2268 2269 2270 2271 2272 2273 2274
	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

2282 2283 2284 2285 2286 2287 2288
#
# 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
2306
	bool
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2308 2309
config CPU_GENERIC_DUMP_TLB
	bool
2310
	default y if !(CPU_R3000 || CPU_TX39XX)
2311

2312
config MIPS_FP_SUPPORT
2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 2323 2324 2325
	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.
2326

2327 2328
config CPU_R2300_FPU
	bool
2329
	depends on MIPS_FP_SUPPORT
2330 2331
	default y if CPU_R3000 || CPU_TX39XX

2332 2333 2334
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2337
	depends on MIPS_FP_SUPPORT
2338
	default y if !CPU_R2300_FPU
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2340 2341
config CPU_R4K_CACHE_TLB
	bool
2342
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2343

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config MIPS_MT_SMP
2345
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2346
	default y
2347
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2348
	select CPU_MIPSR2_IRQ_VI
2349
	select CPU_MIPSR2_IRQ_EI
2350
	select SYNC_R4K
2351
	select MIPS_MT
2352
	select SMP
2353
	select SMP_UP
2354 2355
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2356
	select MIPS_PERF_SHARED_TC_COUNTERS
2357
	help
2358 2359 2360 2361 2362
	  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>.
2363

2364 2365 2366
config MIPS_MT
	bool

2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378
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

2379 2380 2381
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
2386

2387 2388
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2389
	depends on CPU_MIPSR6
2390
	depends on MIPS_FP_SUPPORT
2391 2392 2393 2394
	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
2395
	  default. You can enable it using the 'mipsr2emu' kernel option.
2396 2397 2398
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2399 2400 2401 2402 2403 2404 2405
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2406 2407
config MIPS_VPE_LOADER
	bool "VPE loader support."
2408
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2409 2410 2411 2412 2413 2414
	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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2416 2417 2418 2419 2420
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2421 2422 2423 2424 2425
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 2436
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
2437 2438
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2439

2440 2441 2442 2443 2444
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2445 2446 2447 2448 2449
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2450
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2452
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2453
	select SMP
2454
	select SYNC_R4K
2455
	select SYS_SUPPORTS_SMP
2456 2457 2458
	select WEAK_ORDERING
	default n
	help
2459 2460 2461
	  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.
2462

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

2466 2467
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2468
	depends on SYS_SUPPORTS_MIPS_CPS
2469
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2471 2472
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2474
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2475 2476 2477 2478 2479 2480 2481 2482 2483
	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.

2484
config MIPS_CPS_PM
2485
	depends on MIPS_CPS
2486 2487
	bool

2488 2489
config MIPS_CM
	bool
2490
	select MIPS_CPC
2491

2492 2493
config MIPS_CPC
	bool
2494

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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

2505 2506 2507 2508 2509 2510 2511 2512
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

2513 2514
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2515
	bool "SmartMIPS"
2516 2517 2518 2519 2520 2521 2522 2523 2524
	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.

2525
config CPU_MICROMIPS
2526
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2527
	bool "microMIPS"
2528 2529 2530 2531
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2532 2533
endchoice

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config CPU_HAS_MSA
2535
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2537
	depends on MIPS_FP_SUPPORT
2538
	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
2542 2543 2544 2545 2546
	  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
2551
	bool
2552

2553 2554 2555
config XKS01
	bool

2556 2557 2558 2559 2560 2561 2562
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2563 2564 2565
config CPU_HAS_RIXI
	bool

2566
config CPU_NO_LOAD_STORE_LR
2567 2568
	bool
	help
2569
	  CPU lacks support for unaligned load and store instructions:
2570
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2571 2572
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2573

2574 2575 2576
#
# Vectored interrupt mode is an R2 feature
#
2577
config CPU_MIPSR2_IRQ_VI
2578
	bool
2579

2580 2581 2582
#
# Extended interrupt mode is an R2 feature
#
2583
config CPU_MIPSR2_IRQ_EI
2584
	bool
2585

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2586 2587 2588 2589 2590
config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2591 2592 2593 2594 2595 2596 2597 2598 2599 2600 2601 2602 2603
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2604 2605 2606 2607
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2608 2609 2610 2611 2612 2613 2614
config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 0

config MIPS_ASID_BITS
	int
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	default 0 if MIPS_ASID_BITS_VARIABLE
2616 2617 2618
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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2619 2620 2621
config MIPS_ASID_BITS_VARIABLE
	bool

2622 2623 2624
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"
2640
	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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2648 2649 2650
config SYS_SUPPORTS_SMARTMIPS
	bool

2651 2652 2653
config SYS_SUPPORTS_MICROMIPS
	bool

2654 2655 2656 2657 2658 2659 2660
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

2664 2665
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2667

2668 2669
config ARCH_SPARSEMEM_ENABLE
	bool
2670
	select SPARSEMEM_STATIC if !SGI_IP27
2671

2672 2673 2674 2675 2676 2677 2678
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
2679
	  leave it disabled; on single node systems leave this option
2680 2681 2682 2683 2684
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2685 2686 2687 2688 2689 2690 2691 2692
config HAVE_SETUP_PER_CPU_AREA
	def_bool y
	depends on NUMA

config NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool y
	depends on NUMA

2693 2694
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)
2696 2697 2698 2699 2700 2701
	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

2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717
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.

2718 2719 2720 2721
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2722 2723 2724 2725
	  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.
2726

2727
	  Entropy is generated using any coprocessor 0 registers available.
2728

2729
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2730

2731
	  If unsure, say N.
2732 2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747

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

2753 2754
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
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	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2756 2757 2758 2759 2760
	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"
2763 2764
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2766 2767
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2768

2769
	  If you say N here, the kernel will run on uni- and multiprocessor
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	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
2772
	  uniprocessor machines. On a uniprocessor machine, the kernel
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	  will run faster if you say N here.

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

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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2780 2781 2782

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

2783 2784 2785 2786 2787 2788 2789 2790 2791 2792
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.

2793 2794 2795
config SMP_UP
	bool

2796 2797 2798
config SYS_SUPPORTS_MIPS_CMP
	bool

2799 2800 2801
config SYS_SUPPORTS_MIPS_CPS
	bool

2802 2803 2804
config SYS_SUPPORTS_SMP
	bool

2805 2806 2807 2808 2809 2810 2811 2812 2813 2814 2815 2816 2817 2818 2819
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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Linus Torvalds 已提交
2820
config NR_CPUS
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2821 2822
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2823
	depends on SMP
2824 2825 2826 2827 2828
	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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2829 2830 2831 2832
	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
2833 2834
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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Linus Torvalds 已提交
2835 2836

	  This is purely to save memory - each supported CPU adds
2837 2838 2839
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
L
Linus Torvalds 已提交
2840

2841 2842
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2843 2844 2845 2846 2847 2848 2849 2850 2851

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
2852

2853 2854 2855 2856 2857 2858 2859 2860
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2861
	  Allows the configuration of the timer frequency.
2862

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2863 2864 2865
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2866
	config HZ_48
2867
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886 2887 2888

	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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2889 2890 2891
config SYS_SUPPORTS_24HZ
	bool

2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914
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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2915 2916 2917 2918 2919 2920 2921
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2922 2923 2924 2925
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2926
	default 24 if HZ_24
2927 2928 2929 2930 2931 2932 2933 2934
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

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Deng-Cheng Zhu 已提交
2935 2936 2937
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2938
config KEXEC
2939
	bool "Kexec system call"
2940
	select KEXEC_CORE
2941 2942 2943
	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
2944
	  but it is independent of the system firmware.   And like a reboot
2945 2946
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2947
	  The name comes from the similarity to the exec system call.
2948 2949 2950

	  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
2951 2952 2953
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2954

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Ralf Baechle 已提交
2955
config CRASH_DUMP
2956 2957
	bool "Kernel crash dumps"
	help
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Ralf Baechle 已提交
2958 2959 2960 2961 2962 2963 2964 2965 2966
	  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
2967
	hex "Physical address where the kernel is loaded"
2968
	default "0xffffffff84000000"
2969 2970
	depends on CRASH_DUMP
	help
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Ralf Baechle 已提交
2971 2972 2973 2974 2975 2976
	  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).

2977 2978
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2979
	depends on PROC_FS
2980 2981 2982 2983 2984 2985 2986 2987 2988 2989 2990 2991 2992 2993
	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.

2994
config MIPS_O32_FP64_SUPPORT
2995
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007
	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.

3008 3009 3010 3011 3012 3013 3014 3015
	  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.
3016

3017
config USE_OF
3018
	bool
3019
	select OF
3020
	select OF_EARLY_FLATTREE
3021
	select IRQ_DOMAIN
3022

3023 3024 3025
config UHI_BOOT
	bool

3026 3027 3028
config BUILTIN_DTB
	bool

3029
choice
3030
	prompt "Kernel appended dtb support" if USE_OF
3031 3032 3033 3034 3035 3036 3037
	default MIPS_NO_APPENDED_DTB

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

3038 3039 3040 3041 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051
	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.

3052
	config MIPS_RAW_APPENDED_DTB
3053
		bool "vmlinux.bin or vmlinuz.bin"
3054 3055
		help
		  With this option, the boot code will look for a device tree binary
3056
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3057 3058 3059 3060 3061 3062 3063 3064 3065 3066 3067 3068 3069
		  (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

3070 3071
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3072
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3073
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3074
					 !CAVIUM_OCTEON_SOC
3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086
	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"
3087 3088 3089 3090

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3091 3092
endchoice

3093 3094
endmenu

3095 3096 3097 3098 3099 3100 3101 3102
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3103 3104
config PGTABLE_LEVELS
	int
3105
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3106 3107 3108
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3109 3110 3111
config MIPS_AUTO_PFN_OFFSET
	bool

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Linus Torvalds 已提交
3112 3113
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3114
config PCI_DRIVERS_GENERIC
3115
	select PCI_DOMAINS_GENERIC if PCI
3116 3117 3118 3119 3120
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3121
	select PCI_DOMAINS if PCI
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Linus Torvalds 已提交
3122 3123 3124 3125 3126 3127 3128 3129 3130 3131 3132 3133 3134

#
# 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
3135 3136 3137 3138 3139 3140 3141 3142
	  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
3143 3144 3145 3146 3147

config MMU
	bool
	default y

3148 3149 3150 3151 3152 3153 3154 3155 3156
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
3157
	default 8
3158 3159

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3160
	default 15
3161

3162 3163
config I8253
	bool
3164
	select CLKSRC_I8253
3165
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3166
	select MIPS_EXTERNAL_TIMER
3167

3168 3169 3170
config ZONE_DMA
	bool

3171 3172 3173
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3174 3175 3176 3177 3178 3179
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3180
	bool
L
Linus Torvalds 已提交
3181 3182 3183 3184

config COMPAT
	bool

3185 3186 3187
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3188 3189
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3190 3191 3192 3193 3194
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3195 3196 3197 3198 3199 3200 3201 3202 3203
	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"
3204
	depends on 64BIT
3205
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3206 3207 3208
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219
	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
3220
	select ELFCORE
L
Linus Torvalds 已提交
3221

3222 3223
menu "Power management options"

W
Wu Zhangjin 已提交
3224 3225
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3226
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3227

J
Johannes Berg 已提交
3228 3229
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3230
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3231

3232
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3233

L
Linus Torvalds 已提交
3234 3235
endmenu

3236 3237 3238 3239
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3240 3241

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3242 3243
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3244

P
Paul Burton 已提交
3245 3246 3247 3248
source "drivers/cpuidle/Kconfig"

endmenu

3249 3250
source "drivers/firmware/Kconfig"

3251
source "arch/mips/kvm/Kconfig"