Kconfig 82.2 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_CLOCKSOURCE_DATA
	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_HAS_FORTIFY_SOURCE
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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
	select BUILDTIME_EXTABLE_SORT
	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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	select HAVE_CONTEXT_TRACKING
	select HAVE_COPY_THREAD_TLS
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MEMBLOCK_NODE_MAP
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_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 HAVE_GENERIC_VDSO
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select MODULES_USE_ELF_REL if MODULES
	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	select ARCH_HAS_KCOV
	select HAVE_GCC_PLUGINS
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menu "Machine selection"

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

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

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

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

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

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

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

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select 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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	select LIBFDT
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CRC32
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select PCI_GT64XXX_PCI0
	select MIPS_NILE4
	select R5000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
	select SYS_SUPPORTS_LITTLE_ENDIAN

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config MACH_LOONGSON32
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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 LIBFDT
	select MFD_SYSCON
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select PINCTRL
	select REGULATOR
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

L
Linus Torvalds 已提交
532
config MIPS_MALTA
533
	bool "MIPS Malta board"
534
	select ARCH_MAY_HAVE_PC_FDC
535
	select ARCH_MIGHT_HAVE_PC_PARPORT
536
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
537
	select BOOT_ELF32
538
	select BOOT_RAW
P
Paul Burton 已提交
539
	select BUILTIN_DTB
540
	select CEVT_R4K
541
	select CLKSRC_MIPS_GIC
542
	select COMMON_CLK
543
	select CSRC_R4K
544
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
545
	select GENERIC_ISA_DMA
546
	select HAVE_PCSPKR_PLATFORM
547
	select HAVE_PCI
548
	select I8253
L
Linus Torvalds 已提交
549
	select I8259
550 551
	select IRQ_MIPS_CPU
	select LIBFDT
552
	select MIPS_BONITO64
553
	select MIPS_CPU_SCACHE
554
	select MIPS_GIC
555
	select MIPS_L1_CACHE_SHIFT_6
556
	select MIPS_MSC
557
	select PCI_GT64XXX_PCI0
558
	select SMP_UP if SMP
L
Linus Torvalds 已提交
559
	select SWAP_IO_SPACE
560 561
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
562
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
563
	select SYS_HAS_CPU_MIPS32_R5
564
	select SYS_HAS_CPU_MIPS32_R6
565
	select SYS_HAS_CPU_MIPS64_R1
566
	select SYS_HAS_CPU_MIPS64_R2
567
	select SYS_HAS_CPU_MIPS64_R6
568 569
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
570 571
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
572
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
573
	select SYS_SUPPORTS_HIGHMEM
574
	select SYS_SUPPORTS_LITTLE_ENDIAN
575
	select SYS_SUPPORTS_MICROMIPS
576
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
577
	select SYS_SUPPORTS_MIPS_CMP
578
	select SYS_SUPPORTS_MIPS_CPS
579
	select SYS_SUPPORTS_MULTITHREADING
580
	select SYS_SUPPORTS_RELOCATABLE
581
	select SYS_SUPPORTS_SMARTMIPS
582
	select SYS_SUPPORTS_VPE_LOADER
583
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
584
	select USE_OF
585
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
586
	help
587
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
588 589
	  board.

590 591 592 593 594 595 596 597
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.

598 599 600
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
601
	select HAVE_PCI
602 603
	help
	  This enables support for the NEC Electronics Mark-eins boards.
604

605
config MACH_VR41XX
606
	bool "NEC VR4100 series based machines"
607
	select CEVT_R4K
608
	select CSRC_R4K
609
	select SYS_HAS_CPU_VR41XX
610
	select SYS_SUPPORTS_MIPS16
611
	select GPIOLIB
612

613 614 615 616
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
617
	  Support for NXP Semiconductors STB220 Development Board.
618 619 620 621 622 623

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
624
	  Support for NXP Semiconductors STB225 Development Board.
625

M
Marc St-Jean 已提交
626 627
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
628 629
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
630 631 632 633 634 635 636 637
	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
638
	select SYS_SUPPORTS_MIPS16
639
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
640 641
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
642 643
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
644 645 646 647 648 649
	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
650 651 652 653 654 655
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
656
	select IRQ_MIPS_CPU
J
John Crispin 已提交
657 658 659 660 661
	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
662
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
663 664
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
665 666
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
667

L
Linus Torvalds 已提交
668
config SGI_IP22
669
	bool "SGI IP22 (Indy/Indigo2)"
670
	select ARC_MEMORY
671
	select ARC_PROMLIB
672 673
	select FW_ARC
	select FW_ARC32
674
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
675
	select BOOT_ELF32
676
	select CEVT_R4K
677
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
678
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
679
	select DMA_NONCOHERENT
680
	select HAVE_EISA
681
	select I8253
682
	select I8259
L
Linus Torvalds 已提交
683
	select IP22_CPU_SCACHE
684
	select IRQ_MIPS_CPU
685
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
686 687
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
688
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
689 690 691
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
692
	select SWAP_IO_SPACE
693 694
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
695
	select SYS_HAS_EARLY_PRINTK
696 697
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
698
	select SYS_SUPPORTS_BIG_ENDIAN
699
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
700 701 702 703 704 705
	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
706
	bool "SGI IP27 (Origin200/2000)"
707
	select ARCH_HAS_PHYS_TO_DMA
708
	select ARCH_SPARSEMEM_ENABLE
709 710
	select FW_ARC
	select FW_ARC64
711
	select ARC_CMDLINE_ONLY
712
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
713
	select DEFAULT_SGI_PARTITION
714
	select SYS_HAS_EARLY_PRINTK
715
	select HAVE_PCI
716
	select IRQ_MIPS_CPU
717
	select IRQ_DOMAIN_HIERARCHY
718
	select NR_CPUS_DEFAULT_64
719 720
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
721
	select SYS_HAS_CPU_R10000
722
	select SYS_SUPPORTS_64BIT_KERNEL
723
	select SYS_SUPPORTS_BIG_ENDIAN
724
	select SYS_SUPPORTS_NUMA
725
	select SYS_SUPPORTS_SMP
726
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
727 728 729 730 731
	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
732
config SGI_IP28
733
	bool "SGI IP28 (Indigo2 R10k)"
734
	select ARC_MEMORY
735
	select ARC_PROMLIB
736 737
	select FW_ARC
	select FW_ARC64
738
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
739 740 741 742 743 744
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
745
	select IRQ_MIPS_CPU
746
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
747 748 749 750
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
751
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
752 753 754 755 756
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
757
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
758 759
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
760
	select MIPS_L1_CACHE_SHIFT_7
761 762 763
	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
764

765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791
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
792
config SGI_IP32
793
	bool "SGI IP32 (O2)"
794 795
	select ARC_MEMORY
	select ARC_PROMLIB
796
	select ARCH_HAS_PHYS_TO_DMA
797 798
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
799
	select BOOT_ELF32
800
	select CEVT_R4K
801
	select CSRC_R4K
L
Linus Torvalds 已提交
802
	select DMA_NONCOHERENT
803
	select HAVE_PCI
804
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
805 806
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
807 808 809
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
810
	select SYS_HAS_CPU_NEVADA
811
	select SYS_SUPPORTS_64BIT_KERNEL
812 813
	select SYS_SUPPORTS_BIG_ENDIAN
	help
814
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
815

816 817
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
818
	select BOOT_ELF32
819
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
820
	select SWAP_IO_SPACE
821
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
822 823 824
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

825 826
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
827
	select BOOT_ELF32
828
	select SIBYTE_BCM1120
829
	select SWAP_IO_SPACE
830
	select SYS_HAS_CPU_SB1
831
	select SYS_SUPPORTS_BIG_ENDIAN
832
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
833

834 835
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
836
	select BOOT_ELF32
837
	select SIBYTE_BCM1125
838
	select SWAP_IO_SPACE
839
	select SYS_HAS_CPU_SB1
840
	select SYS_SUPPORTS_BIG_ENDIAN
841
	select SYS_SUPPORTS_HIGHMEM
842
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
843

844
config SIBYTE_RHONE
845
	bool "Sibyte BCM91125E-Rhone"
846 847 848
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
849
	select SYS_HAS_CPU_SB1
850 851
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
852

853 854
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
855
	select BOOT_ELF32
856
	select HAVE_PATA_PLATFORM
857
	select SIBYTE_SB1250
858
	select SWAP_IO_SPACE
859
	select SYS_HAS_CPU_SB1
860
	select SYS_SUPPORTS_BIG_ENDIAN
861
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
862
	select SYS_SUPPORTS_LITTLE_ENDIAN
863
	select ZONE_DMA32 if 64BIT
864
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
865

866 867
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
868
	select BOOT_ELF32
869
	select HAVE_PATA_PLATFORM
870 871
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
872
	select SYS_HAS_CPU_SB1
873 874 875
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
876
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
877

878 879
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
880 881 882
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
883
	select SYS_HAS_CPU_SB1
884 885
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
886
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
887

888 889
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
890
	select BOOT_ELF32
891 892
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
893
	select SWAP_IO_SPACE
894
	select SYS_HAS_CPU_SB1
895
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
896
	select SYS_SUPPORTS_HIGHMEM
897
	select SYS_SUPPORTS_LITTLE_ENDIAN
898
	select ZONE_DMA32 if 64BIT
899
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
900

901 902
config SNI_RM
	bool "SNI RM200/300/400"
903 904
	select ARC_MEMORY
	select ARC_PROMLIB
905 906
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
907
	select FW_SNIPROM if CPU_BIG_ENDIAN
908
	select ARCH_MAY_HAVE_PC_FDC
909
	select ARCH_MIGHT_HAVE_PC_PARPORT
910
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
911
	select BOOT_ELF32
912
	select CEVT_R4K
913
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
914
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
915 916
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
917
	select HAVE_EISA
918
	select HAVE_PCSPKR_PLATFORM
919
	select HAVE_PCI
920
	select IRQ_MIPS_CPU
921
	select I8253
L
Linus Torvalds 已提交
922 923
	select I8259
	select ISA
924
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
925
	select SYS_HAS_CPU_R4X00
926
	select SYS_HAS_CPU_R5000
927
	select SYS_HAS_CPU_R10000
928
	select R5000_CPU_SCACHE
929
	select SYS_HAS_EARLY_PRINTK
930
	select SYS_SUPPORTS_32BIT_KERNEL
931
	select SYS_SUPPORTS_64BIT_KERNEL
932
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
933
	select SYS_SUPPORTS_HIGHMEM
934
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
935
	help
936 937
	  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
938 939 940
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

941 942
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
943

944 945
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
946

947 948 949 950 951
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
952
	select HAVE_PCI
953
	select IRQ_MIPS_CPU
954 955 956 957 958
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
959
	select GPIOLIB
960
	select MIPS_L1_CACHE_SHIFT_4
961 962 963 964
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

965 966
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
967
	select CEVT_R4K
968
	select ARCH_HAS_PHYS_TO_DMA
969
	select HAVE_RAPIDIO
970
	select PHYS_ADDR_T_64BIT
971 972
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
973
	select EDAC_SUPPORT
974
	select EDAC_ATOMIC_SCRUB
975 976
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
977
	select SYS_HAS_EARLY_PRINTK
978
	select SYS_HAS_CPU_CAVIUM_OCTEON
979
	select HAVE_PCI
D
David Daney 已提交
980
	select ZONE_DMA32
981
	select HOLES_IN_ZONE
982
	select GPIOLIB
983 984 985 986
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
987 988
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
989
	select BUILTIN_DTB
990
	select MTD_COMPLEX_MAPPINGS
991
	select SWIOTLB
S
Steven J. Hill 已提交
992
	select SYS_SUPPORTS_RELOCATABLE
993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005
	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.

1006 1007 1008 1009 1010 1011
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
1012
	select HAVE_PCI
1013 1014 1015
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1016
	select PHYS_ADDR_T_64BIT
1017 1018 1019 1020 1021
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
1022
	select IRQ_MIPS_CPU
1023
	select ZONE_DMA32 if 64BIT
1024 1025
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1026 1027
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1028 1029 1030 1031
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

1032 1033 1034 1035 1036 1037
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
1038
	select HAVE_PCI
1039 1040
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1041
	select PHYS_ADDR_T_64BIT
1042
	select GPIOLIB
1043 1044 1045 1046 1047 1048
	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
1049
	select IRQ_MIPS_CPU
1050
	select ZONE_DMA32 if 64BIT
1051 1052
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1053
	select USE_OF
1054 1055
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1056 1057 1058 1059
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072
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
1073
	select HAVE_PCI
1074 1075 1076 1077
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1078
endchoice
L
Linus Torvalds 已提交
1079

R
Ralf Baechle 已提交
1080
source "arch/mips/alchemy/Kconfig"
1081
source "arch/mips/ath25/Kconfig"
1082
source "arch/mips/ath79/Kconfig"
1083
source "arch/mips/bcm47xx/Kconfig"
1084
source "arch/mips/bcm63xx/Kconfig"
1085
source "arch/mips/bmips/Kconfig"
1086
source "arch/mips/generic/Kconfig"
1087
source "arch/mips/jazz/Kconfig"
1088
source "arch/mips/jz4740/Kconfig"
1089
source "arch/mips/lantiq/Kconfig"
1090
source "arch/mips/lasat/Kconfig"
1091
source "arch/mips/pic32/Kconfig"
1092
source "arch/mips/pistachio/Kconfig"
R
Ralf Baechle 已提交
1093
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
1094
source "arch/mips/ralink/Kconfig"
1095
source "arch/mips/sgi-ip27/Kconfig"
1096
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1097
source "arch/mips/txx9/Kconfig"
1098
source "arch/mips/vr41xx/Kconfig"
1099
source "arch/mips/cavium-octeon/Kconfig"
1100
source "arch/mips/loongson2ef/Kconfig"
1101 1102
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1103
source "arch/mips/netlogic/Kconfig"
1104
source "arch/mips/paravirt/Kconfig"
1105

1106 1107
endmenu

1108 1109 1110 1111
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
1112 1113 1114 1115
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1116
config SCHED_OMIT_FRAME_POINTER
1117 1118 1119
	bool
	default y

L
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1120 1121 1122
#
# Select some configuration options automatically based on user selections.
#
1123
config FW_ARC
L
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1124 1125
	bool

1126 1127 1128
config ARCH_MAY_HAVE_PC_FDC
	bool

M
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1129 1130 1131
config BOOT_RAW
	bool

1132 1133 1134
config CEVT_BCM1480
	bool

1135 1136 1137
config CEVT_DS1287
	bool

1138 1139 1140
config CEVT_GT641XX
	bool

1141 1142 1143
config CEVT_R4K
	bool

1144 1145 1146
config CEVT_SB1250
	bool

1147 1148 1149
config CEVT_TXX9
	bool

1150 1151 1152
config CSRC_BCM1480
	bool

1153 1154 1155
config CSRC_IOASIC
	bool

1156 1157 1158
config CSRC_R4K
	bool

1159 1160 1161
config CSRC_SB1250
	bool

1162 1163 1164
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1165
config GPIO_TXX9
1166
	select GPIOLIB
1167 1168
	bool

1169
config FW_CFE
1170 1171
	bool

R
Ralf Baechle 已提交
1172 1173 1174
config ARCH_SUPPORTS_UPROBES
	bool

1175
config DMA_MAYBE_COHERENT
1176
	select ARCH_HAS_DMA_COHERENCE_H
1177 1178 1179
	select DMA_NONCOHERENT
	bool

1180 1181
config DMA_PERDEV_COHERENT
	bool
1182
	select ARCH_HAS_SETUP_DMA_OPS
1183
	select DMA_NONCOHERENT
1184

1185 1186
config DMA_NONCOHERENT
	bool
1187 1188 1189 1190 1191 1192 1193
	#
	# 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.
	#
1194
	select ARCH_HAS_DMA_WRITE_COMBINE
1195
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1196
	select ARCH_HAS_UNCACHED_SEGMENT
1197
	select DMA_NONCOHERENT_MMAP
1198
	select DMA_NONCOHERENT_CACHE_SYNC
1199
	select NEED_DMA_MAP_STATE
1200

1201
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
1202 1203
	bool

1204
config SYS_SUPPORTS_HOTPLUG_CPU
1205 1206
	bool

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Linus Torvalds 已提交
1207 1208 1209 1210 1211 1212
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1213 1214 1215
config MIPS_NILE4
	bool

1216 1217 1218
config SYNC_R4K
	bool

1219 1220 1221
config MIPS_MACHINE
	def_bool n

1222
config NO_IOPORT_MAP
1223 1224
	def_bool n

1225 1226
config GENERIC_CSUM
	bool
1227
	default y if !CPU_HAS_LOAD_STORE_LR
1228

1229 1230 1231
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1232
	select ISA_DMA_API
1233

1234 1235
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1236
	select GENERIC_ISA_DMA
1237

1238 1239 1240
config ISA_DMA_API
	bool

1241 1242 1243
config HOLES_IN_ZONE
	bool

1244 1245 1246
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1247 1248 1249
	  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.
1250

D
David Daney 已提交
1251 1252 1253 1254 1255 1256 1257 1258 1259
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


1260
#
M
Masanari Iida 已提交
1261
# Endianness selection.  Sufficiently obscure so many users don't know what to
1262 1263 1264 1265
# 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
1266
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1267 1268
	help
	  Some MIPS machines can be configured for either little or big endian
1269
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1270
	  Linux distribution.  In general there is one preferred byteorder for a
1271
	  particular system but some systems are just as commonly used in the
1272
	  one or the other endianness.
1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283

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

1284 1285 1286
config EXPORT_UASM
	bool

1287 1288 1289
config SYS_SUPPORTS_APM_EMULATION
	bool

1290 1291 1292 1293 1294
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1295

1296 1297
config SYS_SUPPORTS_HUGETLBFS
	bool
1298
	depends on CPU_SUPPORTS_HUGEPAGES
1299 1300
	default y

1301 1302 1303
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1304 1305 1306
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1307 1308 1309 1310 1311 1312
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1313 1314 1315
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1316 1317 1318
config IRQ_GT641XX
	bool

1319
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1320 1321
	bool

1322 1323 1324
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1325 1326 1327
config NO_EXCEPT_FILL
	bool

1328 1329 1330 1331 1332
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1333
	select IRQ_MIPS_CPU
1334 1335 1336 1337 1338 1339
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1340 1341 1342 1343
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1344
	select IRQ_MIPS_CPU
1345 1346 1347 1348 1349
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1350
	select SYS_SUPPORTS_MIPS16
1351 1352 1353 1354 1355 1356
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1357 1358 1359
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1360 1361 1362
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1363 1364 1365
config SGI_HAS_INDYDOG
	bool

1366 1367 1368
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383
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

1384
config FW_ARC32
1385 1386
	bool

P
Paul Bolle 已提交
1387
config FW_SNIPROM
1388 1389
	bool

L
Linus Torvalds 已提交
1390 1391 1392
config BOOT_ELF32
	bool

1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404
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
1405 1406
config MIPS_L1_CACHE_SHIFT
	int
1407
	default "7" if MIPS_L1_CACHE_SHIFT_7
1408 1409 1410
	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
1411 1412 1413 1414 1415
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

1416 1417 1418
config ARC_CMDLINE_ONLY
	bool

L
Linus Torvalds 已提交
1419 1420
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1421
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1422 1423 1424 1425 1426 1427 1428

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1429
config FW_ARC64
L
Linus Torvalds 已提交
1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1441
config CPU_LOONGSON64
1442
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1443
	depends on SYS_HAS_CPU_LOONGSON64
1444
	select ARCH_HAS_PHYS_TO_DMA
1445 1446 1447
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1448
	select CPU_SUPPORTS_MSA
1449
	select CPU_HAS_LOAD_STORE_LR
1450 1451
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1452
	select MIPS_ASID_BITS_VARIABLE
1453
	select MIPS_PGD_C0_CONTEXT
1454
	select MIPS_L1_CACHE_SHIFT_6
1455
	select GPIOLIB
1456
	select SWIOTLB
1457
	help
1458 1459 1460 1461 1462 1463 1464 1465
		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"
1466 1467 1468
	default n
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
J
Jiaxun Yang 已提交
1469
	depends on CPU_LOONGSON64
1470
	help
1471
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1472
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1473
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1474 1475 1476 1477 1478 1479
	  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
1480
	  new Loongson-3 machines only, please say 'Y' here.
1481

1482
config CPU_LOONGSON3_WORKAROUNDS
1483
	bool "Old Loongson-3 LLSC Workarounds"
1484
	default y if SMP
J
Jiaxun Yang 已提交
1485
	depends on CPU_LOONGSON64
1486
	help
1487
	  Loongson-3 processors have the llsc issues which require workarounds.
1488 1489
	  Without workarounds the system may hang unexpectedly.

1490
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1491 1492 1493 1494 1495 1496
	  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.

1497 1498 1499
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1500
	select CPU_LOONGSON2EF
1501 1502 1503 1504
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1505
	  It has an internal FPGA northbridge, which is compatible to
1506 1507 1508 1509 1510
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1511
	select CPU_LOONGSON2EF
1512
	select GPIOLIB
1513 1514 1515 1516 1517 1518 1519 1520
	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.

1521 1522 1523
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1524
	select CPU_LOONGSON32
1525
	select LEDS_GPIO_REGISTER
1526 1527
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1528 1529
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1530

Y
Yang Ling 已提交
1531 1532 1533
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1534
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1535 1536 1537
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1538 1539
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1540

1541 1542
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1543
	depends on SYS_HAS_CPU_MIPS32_R1
1544
	select CPU_HAS_PREFETCH
1545
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1546
	select CPU_SUPPORTS_32BIT_KERNEL
1547
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1548
	help
1549
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560
	  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"
1561
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1562
	select CPU_HAS_PREFETCH
1563
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1564
	select CPU_SUPPORTS_32BIT_KERNEL
1565
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1566
	select CPU_SUPPORTS_MSA
1567
	select HAVE_KVM
1568
	help
1569
	  Choose this option to build a kernel for release 2 or later of the
1570 1571 1572 1573 1574
	  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.

1575
config CPU_MIPS32_R6
1576
	bool "MIPS32 Release 6"
1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS32r6 processor. If you own an older
	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

1590 1591
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1592
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1593
	select CPU_HAS_PREFETCH
1594
	select CPU_HAS_LOAD_STORE_LR
1595 1596
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1597
	select CPU_SUPPORTS_HIGHMEM
1598
	select CPU_SUPPORTS_HUGEPAGES
1599 1600 1601 1602 1603 1604
	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
1605 1606 1607 1608 1609 1610 1611
	  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"
1612
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1613
	select CPU_HAS_PREFETCH
1614
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1615 1616
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1617
	select CPU_SUPPORTS_HIGHMEM
1618
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1619
	select CPU_SUPPORTS_MSA
1620
	select HAVE_KVM
R
Ralf Baechle 已提交
1621 1622 1623 1624 1625 1626
	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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1628
config CPU_MIPS64_R6
1629
	bool "MIPS64 Release 6"
1630 1631 1632 1633 1634
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1635
	select CPU_SUPPORTS_HUGEPAGES
1636
	select CPU_SUPPORTS_MSA
1637
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1638
	select HAVE_KVM
1639 1640 1641 1642 1643 1644
	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"
1647
	depends on SYS_HAS_CPU_R3000
1648
	select CPU_HAS_WB
1649
	select CPU_HAS_LOAD_STORE_LR
1650
	select CPU_R3K_TLB
1651
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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1653 1654 1655 1656 1657 1658 1659 1660 1661 1662
	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"
1663
	depends on SYS_HAS_CPU_TX39XX
1664
	select CPU_SUPPORTS_32BIT_KERNEL
1665
	select CPU_HAS_LOAD_STORE_LR
1666
	select CPU_R3K_TLB
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config CPU_VR41XX
	bool "R41xx"
1670
	depends on SYS_HAS_CPU_VR41XX
1671 1672
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1673
	select CPU_HAS_LOAD_STORE_LR
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1674
	help
1675
	  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"
1682
	depends on SYS_HAS_CPU_R4X00
1683 1684
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1685
	select CPU_SUPPORTS_HUGEPAGES
1686
	select CPU_HAS_LOAD_STORE_LR
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1687 1688 1689 1690 1691 1692
	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1693
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1695
	select CPU_HAS_LOAD_STORE_LR
1696 1697
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1698
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1702
	depends on SYS_HAS_CPU_R5000
1703 1704
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1705
	select CPU_SUPPORTS_HUGEPAGES
1706
	select CPU_HAS_LOAD_STORE_LR
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1710 1711 1712 1713 1714
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1715
	select CPU_SUPPORTS_HUGEPAGES
1716
	select CPU_HAS_LOAD_STORE_LR
1717 1718 1719 1720
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1723
	depends on SYS_HAS_CPU_NEVADA
1724 1725
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1726
	select CPU_SUPPORTS_HUGEPAGES
1727
	select CPU_HAS_LOAD_STORE_LR
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1728 1729 1730 1731 1732
	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1733
	depends on SYS_HAS_CPU_R10000
1734
	select CPU_HAS_PREFETCH
1735
	select CPU_HAS_LOAD_STORE_LR
1736 1737
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1739
	select CPU_SUPPORTS_HUGEPAGES
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1740 1741 1742 1743 1744
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1745
	depends on SYS_HAS_CPU_RM7000
1746
	select CPU_HAS_PREFETCH
1747
	select CPU_HAS_LOAD_STORE_LR
1748 1749
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1751
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1755
	depends on SYS_HAS_CPU_SB1
1756
	select CPU_HAS_LOAD_STORE_LR
1757 1758
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1760
	select CPU_SUPPORTS_HUGEPAGES
1761
	select WEAK_ORDERING
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1762

1763 1764
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1765
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1766
	select CPU_HAS_PREFETCH
1767
	select CPU_HAS_LOAD_STORE_LR
1768 1769 1770
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1771
	select CPU_SUPPORTS_HUGEPAGES
1772 1773
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1774
	select MIPS_L1_CACHE_SHIFT_7
1775
	select HAVE_KVM
1776 1777 1778 1779 1780 1781
	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.

1782 1783 1784 1785
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1786
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1787 1788 1789 1790 1791
	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
1792
	select IRQ_MIPS_CPU
1793 1794
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1795
	select CPU_SUPPORTS_HIGHMEM
1796
	select CPU_HAS_PREFETCH
1797
	select CPU_HAS_LOAD_STORE_LR
1798 1799
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1800
	help
1801
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1802

1803 1804 1805
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1806
	select CPU_HAS_LOAD_STORE_LR
1807 1808 1809
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1810
	select CPU_SUPPORTS_HUGEPAGES
1811 1812 1813 1814
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824

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
1825
	select CPU_HAS_LOAD_STORE_LR
1826
	select CPU_MIPSR2
1827
	select CPU_SUPPORTS_HUGEPAGES
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1828
	select MIPS_ASID_BITS_VARIABLE
1829 1830
	help
	  Netlogic Microsystems XLP processors.
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1831 1832
endchoice

1833 1834 1835
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1836
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852
	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
1870
	select PHYS_ADDR_T_64BIT
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1871 1872 1873 1874 1875 1876 1877 1878 1879
	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.

1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906
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

1907 1908 1909 1910
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1911
	select HAVE_KERNEL_LZ4
1912
	select HAVE_KERNEL_LZMA
1913
	select HAVE_KERNEL_LZO
1914
	select HAVE_KERNEL_XZ
1915 1916 1917 1918 1919

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1920 1921 1922 1923
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1925 1926 1927 1928
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1929
	select CPU_SUPPORTS_HUGEPAGES
1930
	select ARCH_HAS_PHYS_TO_DMA
1931
	select CPU_HAS_LOAD_STORE_LR
1932

1933
config CPU_LOONGSON32
1934 1935
	bool
	select CPU_MIPS32
1936
	select CPU_MIPSR2
1937
	select CPU_HAS_PREFETCH
1938
	select CPU_HAS_LOAD_STORE_LR
1939 1940
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1941
	select CPU_SUPPORTS_CPUFREQ
1942

1943
config CPU_BMIPS32_3300
1944
	select SMP_UP if SMP
1945
	bool
1946 1947 1948 1949 1950 1951 1952 1953

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1954
	select MIPS_L1_CACHE_SHIFT_6
1955 1956
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1957
	select CPU_HAS_RIXI
1958 1959 1960 1961

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1962
	select MIPS_L1_CACHE_SHIFT_7
1963 1964
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1965
	select CPU_HAS_RIXI
1966

J
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1967
config SYS_HAS_CPU_LOONGSON64
1968 1969
	bool
	select CPU_SUPPORTS_CPUFREQ
1970
	select CPU_HAS_RIXI
1971

1972
config SYS_HAS_CPU_LOONGSON2E
1973 1974
	bool

1975 1976
config SYS_HAS_CPU_LOONGSON2F
	bool
1977 1978
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1979

1980 1981 1982
config SYS_HAS_CPU_LOONGSON1B
	bool

Y
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1983 1984 1985
config SYS_HAS_CPU_LOONGSON1C
	bool

1986 1987 1988 1989 1990 1991
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1992 1993 1994
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1995 1996
config SYS_HAS_CPU_MIPS32_R5
	bool
1997
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1998

1999 2000
config SYS_HAS_CPU_MIPS32_R6
	bool
2001
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2002

2003 2004 2005 2006 2007 2008
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

2009 2010
config SYS_HAS_CPU_MIPS64_R6
	bool
2011
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2012

2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030
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

2031 2032 2033
config SYS_HAS_CPU_R5500
	bool

2034 2035 2036 2037 2038
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2039
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2040 2041 2042 2043 2044 2045 2046

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2047 2048 2049
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2050
config SYS_HAS_CPU_BMIPS
2051 2052
	bool

2053
config SYS_HAS_CPU_BMIPS32_3300
2054
	bool
2055
	select SYS_HAS_CPU_BMIPS
2056 2057 2058

config SYS_HAS_CPU_BMIPS4350
	bool
2059
	select SYS_HAS_CPU_BMIPS
2060 2061 2062

config SYS_HAS_CPU_BMIPS4380
	bool
2063
	select SYS_HAS_CPU_BMIPS
2064 2065 2066

config SYS_HAS_CPU_BMIPS5000
	bool
2067
	select SYS_HAS_CPU_BMIPS
2068
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2069

2070 2071 2072
config SYS_HAS_CPU_XLR
	bool

2073 2074 2075
config SYS_HAS_CPU_XLP
	bool

2076 2077 2078 2079
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2080 2081
config WEAK_ORDERING
	bool
2082 2083 2084 2085 2086 2087 2088

#
# 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
2089 2090 2091
endmenu

#
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2092
# These two indicate any level of the MIPS32 and MIPS64 architecture
2093 2094 2095
#
config CPU_MIPS32
	bool
2096
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2097 2098 2099

config CPU_MIPS64
	bool
2100
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2101 2102

#
2103
# These indicate the revision of the architecture
2104 2105 2106 2107 2108 2109 2110
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2111
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2112
	select CPU_HAS_RIXI
2113
	select MIPS_SPRAM
2114

2115 2116 2117
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2118
	select CPU_HAS_RIXI
2119
	select HAVE_ARCH_BITREVERSE
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2120
	select MIPS_ASID_BITS_VARIABLE
2121
	select MIPS_CRC_SUPPORT
2122
	select MIPS_SPRAM
2123

2124 2125 2126 2127 2128 2129 2130 2131 2132 2133
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.

2134 2135 2136
config EVA
	bool

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2137 2138 2139
config XPA
	bool

2140 2141 2142 2143 2144 2145 2146 2147
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2148 2149 2150 2151
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2152 2153
config CPU_SUPPORTS_HUGEPAGES
	bool
2154
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2155 2156
config MIPS_PGD_C0_CONTEXT
	bool
2157
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2158

2159 2160 2161 2162
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2163 2164
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2165

2166 2167 2168 2169 2170 2171 2172 2173 2174 2175 2176 2177 2178 2179 2180 2181
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.
2182

2183 2184 2185 2186 2187 2188 2189 2190
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

2191 2192
config KVM_GUEST
	bool "KVM Guest Kernel"
2193
	depends on BROKEN_ON_SMP
2194
	help
2195 2196
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2197

2198 2199
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2200
	depends on KVM_GUEST
2201
	default 100
2202
	help
2203 2204 2205
	  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.
2206

2207 2208 2209 2210
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2211 2212 2213 2214 2215 2216 2217
	  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.

2218 2219
	  If unsure, say N.

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
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	help
2228 2229 2230 2231
	  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"
2235
	depends on CPU_CAVIUM_OCTEON
2236
	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
2240 2241
	  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"
2245
	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
2249 2250
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2252 2253 2254
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2255
	depends on !MIPS_VA_BITS_48
2256 2257 2258 2259 2260 2261
	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
2269
	  writing this option is still high experimental.
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endchoice

2273 2274
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2275 2276 2277 2278 2279 2280
	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
2281 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296
	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

2304 2305 2306 2307 2308 2309 2310
#
# 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
2328
	bool
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2330 2331
config CPU_GENERIC_DUMP_TLB
	bool
2332
	default y if !(CPU_R3000 || CPU_TX39XX)
2333

2334
config MIPS_FP_SUPPORT
2335 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347
	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.
2348

2349 2350
config CPU_R2300_FPU
	bool
2351
	depends on MIPS_FP_SUPPORT
2352 2353
	default y if CPU_R3000 || CPU_TX39XX

2354 2355 2356
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2359
	depends on MIPS_FP_SUPPORT
2360
	default y if !CPU_R2300_FPU
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2362 2363
config CPU_R4K_CACHE_TLB
	bool
2364
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2365

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config MIPS_MT_SMP
2367
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2368
	default y
2369
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2370
	select CPU_MIPSR2_IRQ_VI
2371
	select CPU_MIPSR2_IRQ_EI
2372
	select SYNC_R4K
2373
	select MIPS_MT
2374
	select SMP
2375
	select SMP_UP
2376 2377
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2378
	select MIPS_PERF_SHARED_TC_COUNTERS
2379
	help
2380 2381 2382 2383 2384
	  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>.
2385

2386 2387 2388
config MIPS_MT
	bool

2389 2390 2391 2392 2393 2394 2395 2396 2397 2398 2399 2400
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

2401 2402 2403
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
2408

2409 2410
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2411
	depends on CPU_MIPSR6
2412
	depends on MIPS_FP_SUPPORT
2413 2414 2415 2416
	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
2417
	  default. You can enable it using the 'mipsr2emu' kernel option.
2418 2419 2420
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2421 2422 2423 2424 2425 2426 2427
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2428 2429
config MIPS_VPE_LOADER
	bool "VPE loader support."
2430
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2431 2432 2433 2434 2435 2436
	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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2438 2439 2440 2441 2442
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2443 2444 2445 2446 2447
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458
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
2459 2460
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2461

2462 2463 2464 2465 2466
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2467 2468 2469 2470 2471
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2472
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2474
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2475
	select SMP
2476
	select SYNC_R4K
2477
	select SYS_SUPPORTS_SMP
2478 2479 2480
	select WEAK_ORDERING
	default n
	help
2481 2482 2483
	  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.
2484

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

2488 2489
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2490
	depends on SYS_SUPPORTS_MIPS_CPS
2491
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2493 2494
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2496
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2497 2498 2499 2500 2501 2502 2503 2504 2505
	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.

2506
config MIPS_CPS_PM
2507
	depends on MIPS_CPS
2508 2509
	bool

2510 2511
config MIPS_CM
	bool
2512
	select MIPS_CPC
2513

2514 2515
config MIPS_CPC
	bool
2516

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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

2527 2528 2529 2530 2531 2532 2533 2534
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

2535 2536
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2537
	bool "SmartMIPS"
2538 2539 2540 2541 2542 2543 2544 2545 2546
	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.

2547
config CPU_MICROMIPS
2548
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2549
	bool "microMIPS"
2550 2551 2552 2553
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2554 2555
endchoice

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config CPU_HAS_MSA
2557
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2559
	depends on MIPS_FP_SUPPORT
2560
	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
2564 2565 2566 2567 2568
	  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
2573
	bool
2574

2575 2576 2577
config XKS01
	bool

2578 2579 2580
config CPU_HAS_RIXI
	bool

2581 2582 2583 2584 2585 2586 2587
config CPU_HAS_LOAD_STORE_LR
	bool
	help
	  CPU has support for unaligned load and store instructions:
	  LWL, LWR, SWL, SWR (Load/store word left/right).
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).

2588 2589 2590
#
# Vectored interrupt mode is an R2 feature
#
2591
config CPU_MIPSR2_IRQ_VI
2592
	bool
2593

2594 2595 2596
#
# Extended interrupt mode is an R2 feature
#
2597
config CPU_MIPSR2_IRQ_EI
2598
	bool
2599

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2618 2619 2620 2621
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2622 2623 2624 2625 2626 2627 2628
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
2630 2631 2632
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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2633 2634 2635
config MIPS_ASID_BITS_VARIABLE
	bool

2636 2637 2638
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"
2654
	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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2662 2663 2664
config SYS_SUPPORTS_SMARTMIPS
	bool

2665 2666 2667
config SYS_SUPPORTS_MICROMIPS
	bool

2668 2669 2670 2671 2672 2673 2674
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

2678 2679
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2681

2682 2683
config ARCH_SPARSEMEM_ENABLE
	bool
2684
	select SPARSEMEM_STATIC if !SGI_IP27
2685

2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698
config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems disable this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2699 2700 2701 2702 2703 2704 2705 2706
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

2707 2708
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)
2710 2711 2712 2713 2714 2715
	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

2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731
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.

2732 2733 2734 2735
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2736 2737 2738 2739
	  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.
2740

2741
	  Entropy is generated using any coprocessor 0 registers available.
2742

2743
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2744

2745
	  If unsure, say N.
2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761

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

2767 2768
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)
2770 2771 2772 2773 2774
	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"
2777 2778
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2780 2781
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2783
	  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,
2786
	  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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	  If you don't know what to do here, say N.

2797 2798 2799 2800 2801 2802 2803 2804 2805 2806
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.

2807 2808 2809
config SMP_UP
	bool

2810 2811 2812
config SYS_SUPPORTS_MIPS_CMP
	bool

2813 2814 2815
config SYS_SUPPORTS_MIPS_CPS
	bool

2816 2817 2818
config SYS_SUPPORTS_SMP
	bool

2819 2820 2821 2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833
config NR_CPUS_DEFAULT_4
	bool

config NR_CPUS_DEFAULT_8
	bool

config NR_CPUS_DEFAULT_16
	bool

config NR_CPUS_DEFAULT_32
	bool

config NR_CPUS_DEFAULT_64
	bool

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config NR_CPUS
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2835 2836
	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2838 2839 2840 2841 2842
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
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	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
2847 2848
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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2849 2850

	  This is purely to save memory - each supported CPU adds
2851 2852 2853
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
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2854

2855 2856
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2857 2858 2859 2860 2861 2862 2863 2864 2865

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
2866

2867 2868 2869 2870 2871 2872 2873 2874
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2875
	  Allows the configuration of the timer frequency.
2876

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

2880
	config HZ_48
2881
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2882 2883 2884 2885 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 2902

	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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2903 2904 2905
config SYS_SUPPORTS_24HZ
	bool

2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928
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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	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2936 2937 2938 2939
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2940
	default 24 if HZ_24
2941 2942 2943 2944 2945 2946 2947 2948
	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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config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2952
config KEXEC
2953
	bool "Kexec system call"
2954
	select KEXEC_CORE
2955 2956 2957
	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
2958
	  but it is independent of the system firmware.   And like a reboot
2959 2960
	  you can start any kernel with it, not just Linux.

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Matt LaPlante 已提交
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	  The name comes from the similarity to the exec system call.
2962 2963 2964

	  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
2965 2966 2967
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2968

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2969
config CRASH_DUMP
2970 2971
	bool "Kernel crash dumps"
	help
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	  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
2981
	hex "Physical address where the kernel is loaded"
2982
	default "0xffffffff84000000"
2983 2984
	depends on CRASH_DUMP
	help
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	  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).

2991 2992
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2993
	depends on PROC_FS
2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007
	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.

3008
config MIPS_O32_FP64_SUPPORT
3009
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021
	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.

3022 3023 3024 3025 3026 3027 3028 3029
	  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.
3030

3031
config USE_OF
3032
	bool
3033
	select OF
3034
	select OF_EARLY_FLATTREE
3035
	select IRQ_DOMAIN
3036

3037 3038 3039
config UHI_BOOT
	bool

3040 3041 3042
config BUILTIN_DTB
	bool

3043
choice
3044
	prompt "Kernel appended dtb support" if USE_OF
3045 3046 3047 3048 3049 3050 3051
	default MIPS_NO_APPENDED_DTB

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

3052 3053 3054 3055 3056 3057 3058 3059 3060 3061 3062 3063 3064 3065
	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.

3066
	config MIPS_RAW_APPENDED_DTB
3067
		bool "vmlinux.bin or vmlinuz.bin"
3068 3069
		help
		  With this option, the boot code will look for a device tree binary
3070
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082 3083
		  (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

3084 3085
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
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Jonas Gorski 已提交
3086
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3087
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3088
					 !CAVIUM_OCTEON_SOC
3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100
	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"
3101 3102 3103 3104

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3105 3106
endchoice

3107 3108
endmenu

3109 3110 3111 3112 3113 3114 3115 3116
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3117 3118
config PGTABLE_LEVELS
	int
3119
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3120 3121 3122
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3123 3124 3125
config MIPS_AUTO_PFN_OFFSET
	bool

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3126 3127
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3128
config PCI_DRIVERS_GENERIC
3129
	select PCI_DOMAINS_GENERIC if PCI
3130 3131 3132 3133 3134
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3135
	select PCI_DOMAINS if PCI
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3136 3137 3138 3139 3140 3141 3142 3143 3144 3145 3146 3147 3148

#
# 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
3149 3150 3151 3152 3153 3154 3155 3156
	  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
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3157 3158 3159 3160 3161

config MMU
	bool
	default y

3162 3163 3164 3165 3166 3167 3168 3169 3170
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
3171
	default 8
3172 3173

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3174
	default 15
3175

3176 3177
config I8253
	bool
3178
	select CLKSRC_I8253
3179
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3180
	select MIPS_EXTERNAL_TIMER
3181

3182 3183 3184
config ZONE_DMA
	bool

3185 3186 3187
config ZONE_DMA32
	bool

L
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3188 3189 3190 3191 3192 3193
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3194
	bool
L
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3195 3196 3197 3198

config COMPAT
	bool

3199 3200 3201
config SYSVIPC_COMPAT
	bool

L
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3202 3203
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3204 3205 3206 3207 3208
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3209 3210 3211 3212 3213 3214 3215 3216 3217
	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"
3218
	depends on 64BIT
3219
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3220 3221 3222
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3223 3224 3225 3226 3227 3228 3229 3230 3231 3232 3233
	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
3234
	select ELFCORE
L
Linus Torvalds 已提交
3235

3236 3237
menu "Power management options"

W
Wu Zhangjin 已提交
3238 3239
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3240
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3241

J
Johannes Berg 已提交
3242 3243
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3244
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3245

3246
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3247

L
Linus Torvalds 已提交
3248 3249
endmenu

3250 3251 3252 3253
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3254 3255

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3256 3257
source "drivers/cpufreq/Kconfig"
endif
W
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3258

P
Paul Burton 已提交
3259 3260 3261 3262
source "drivers/cpuidle/Kconfig"

endmenu

3263 3264
source "drivers/firmware/Kconfig"

3265
source "arch/mips/kvm/Kconfig"