Kconfig 83.2 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_HAS_FORTIFY_SOURCE
	select ARCH_HAS_KCOV
	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select BUILDTIME_TABLE_SORT
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	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
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	select HAVE_CONTEXT_TRACKING
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	select HAVE_TIF_NOHZ
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	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
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	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
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	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_SPARSE_SYSCALL_NR
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_REL if MODULES
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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config MIPS_FIXUP_BIGPHYS_ADDR
	bool

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menu "Machine selection"

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

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config MIPS_ALCHEMY
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	bool "Alchemy processor based machines"
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	select PHYS_ADDR_T_64BIT
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	select CEVT_R4K
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	select CSRC_R4K
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	select IRQ_MIPS_CPU
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	select DMA_MAYBE_COHERENT	# Au1000,1500,1100 aren't, rest is
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	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
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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_LEGACY_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 COMMON_CLK
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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 MIPS_L1_CACHE_SHIFT_4
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	select CLKDEV_LOOKUP
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	select HAVE_LEGACY_CLK
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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 DMA_OPS
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select HAVE_LEGACY_CLK
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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 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
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	select NO_EXCEPT_FILL
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	select NR_CPUS_DEFAULT_64
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select PCI_DRIVERS_GENERIC
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	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 ZONE_DMA32
	select NUMA
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	select COMMON_CLK
	select USE_OF
	select BUILTIN_DTB
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	select PCI_HOST_GENERIC
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	help
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	  This enables the support of Loongson-2/3 family of machines.

	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
	  and Loongson-2F which will be removed), developed by the Institute
	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
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config MACH_PISTACHIO
	bool "IMG Pistachio SoC based boards"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select GPIOLIB
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	select IRQ_MIPS_CPU
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	select MFD_SYSCON
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select PINCTRL
	select REGULATOR
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

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config MIPS_MALTA
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	bool "MIPS Malta board"
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	select ARCH_MAY_HAVE_PC_FDC
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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Linus Torvalds 已提交
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	select BOOT_ELF32
525
	select BOOT_RAW
P
Paul Burton 已提交
526
	select BUILTIN_DTB
527
	select CEVT_R4K
528
	select CLKSRC_MIPS_GIC
529
	select COMMON_CLK
530
	select CSRC_R4K
531
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
532
	select GENERIC_ISA_DMA
533
	select HAVE_PCSPKR_PLATFORM
534
	select HAVE_PCI
535
	select I8253
L
Linus Torvalds 已提交
536
	select I8259
537
	select IRQ_MIPS_CPU
538
	select MIPS_BONITO64
539
	select MIPS_CPU_SCACHE
540
	select MIPS_GIC
541
	select MIPS_L1_CACHE_SHIFT_6
542
	select MIPS_MSC
543
	select PCI_GT64XXX_PCI0
544
	select SMP_UP if SMP
L
Linus Torvalds 已提交
545
	select SWAP_IO_SPACE
546 547
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
548
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
549
	select SYS_HAS_CPU_MIPS32_R5
550
	select SYS_HAS_CPU_MIPS32_R6
551
	select SYS_HAS_CPU_MIPS64_R1
552
	select SYS_HAS_CPU_MIPS64_R2
553
	select SYS_HAS_CPU_MIPS64_R6
554 555
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
556 557
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
558
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
559
	select SYS_SUPPORTS_HIGHMEM
560
	select SYS_SUPPORTS_LITTLE_ENDIAN
561
	select SYS_SUPPORTS_MICROMIPS
562
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
563
	select SYS_SUPPORTS_MIPS_CMP
564
	select SYS_SUPPORTS_MIPS_CPS
565
	select SYS_SUPPORTS_MULTITHREADING
566
	select SYS_SUPPORTS_RELOCATABLE
567
	select SYS_SUPPORTS_SMARTMIPS
568
	select SYS_SUPPORTS_VPE_LOADER
569
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
570
	select USE_OF
571
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
572
	help
573
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
574 575
	  board.

576 577 578 579 580 581 582 583
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.

584
config MACH_VR41XX
585
	bool "NEC VR4100 series based machines"
586
	select CEVT_R4K
587
	select CSRC_R4K
588
	select SYS_HAS_CPU_VR41XX
589
	select SYS_SUPPORTS_MIPS16
590
	select GPIOLIB
591

592 593 594 595
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
596
	  Support for NXP Semiconductors STB220 Development Board.
597 598 599 600 601 602

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
603
	  Support for NXP Semiconductors STB225 Development Board.
604

J
John Crispin 已提交
605 606 607 608 609 610
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
611
	select IRQ_MIPS_CPU
J
John Crispin 已提交
612 613 614 615 616
	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
617
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
618 619
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
620 621
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
622

L
Linus Torvalds 已提交
623
config SGI_IP22
624
	bool "SGI IP22 (Indy/Indigo2)"
625
	select ARC_MEMORY
626
	select ARC_PROMLIB
627 628
	select FW_ARC
	select FW_ARC32
629
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
630
	select BOOT_ELF32
631
	select CEVT_R4K
632
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
633
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
634
	select DMA_NONCOHERENT
635
	select HAVE_EISA
636
	select I8253
637
	select I8259
L
Linus Torvalds 已提交
638
	select IP22_CPU_SCACHE
639
	select IRQ_MIPS_CPU
640
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
641 642
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
643
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
644 645 646
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
647
	select SWAP_IO_SPACE
648 649
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
650
	select SYS_HAS_EARLY_PRINTK
651 652
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
653
	select SYS_SUPPORTS_BIG_ENDIAN
654
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
655 656 657 658 659 660
	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
661
	bool "SGI IP27 (Origin200/2000)"
662
	select ARCH_HAS_PHYS_TO_DMA
663
	select ARCH_SPARSEMEM_ENABLE
664 665
	select FW_ARC
	select FW_ARC64
666
	select ARC_CMDLINE_ONLY
667
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
668
	select DEFAULT_SGI_PARTITION
669
	select SYS_HAS_EARLY_PRINTK
670
	select HAVE_PCI
671
	select IRQ_MIPS_CPU
672
	select IRQ_DOMAIN_HIERARCHY
673
	select NR_CPUS_DEFAULT_64
674 675
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
676
	select SYS_HAS_CPU_R10000
677
	select SYS_SUPPORTS_64BIT_KERNEL
678
	select SYS_SUPPORTS_BIG_ENDIAN
679
	select SYS_SUPPORTS_NUMA
680
	select SYS_SUPPORTS_SMP
681
	select MIPS_L1_CACHE_SHIFT_7
682
	select NUMA
L
Linus Torvalds 已提交
683 684 685 686 687
	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
688
config SGI_IP28
689
	bool "SGI IP28 (Indigo2 R10k)"
690
	select ARC_MEMORY
691
	select ARC_PROMLIB
692 693
	select FW_ARC
	select FW_ARC64
694
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
695 696 697 698 699 700
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
701
	select IRQ_MIPS_CPU
702
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
703 704 705 706
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
707
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
708 709 710 711 712
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
713
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
714 715
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
716
	select MIPS_L1_CACHE_SHIFT_7
717 718 719
	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
720

721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747
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
748
config SGI_IP32
749
	bool "SGI IP32 (O2)"
750 751
	select ARC_MEMORY
	select ARC_PROMLIB
752
	select ARCH_HAS_PHYS_TO_DMA
753 754
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
755
	select BOOT_ELF32
756
	select CEVT_R4K
757
	select CSRC_R4K
L
Linus Torvalds 已提交
758
	select DMA_NONCOHERENT
759
	select HAVE_PCI
760
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
761 762
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
763 764 765
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
766
	select SYS_HAS_CPU_NEVADA
767
	select SYS_SUPPORTS_64BIT_KERNEL
768 769
	select SYS_SUPPORTS_BIG_ENDIAN
	help
770
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
771

772 773
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
774
	select BOOT_ELF32
775
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
776
	select SWAP_IO_SPACE
777
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
778 779 780
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

781 782
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
783
	select BOOT_ELF32
784
	select SIBYTE_BCM1120
785
	select SWAP_IO_SPACE
786
	select SYS_HAS_CPU_SB1
787
	select SYS_SUPPORTS_BIG_ENDIAN
788
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
789

790 791
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
792
	select BOOT_ELF32
793
	select SIBYTE_BCM1125
794
	select SWAP_IO_SPACE
795
	select SYS_HAS_CPU_SB1
796
	select SYS_SUPPORTS_BIG_ENDIAN
797
	select SYS_SUPPORTS_HIGHMEM
798
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
799

800
config SIBYTE_RHONE
801
	bool "Sibyte BCM91125E-Rhone"
802 803 804
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
805
	select SYS_HAS_CPU_SB1
806 807
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
808

809 810
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
811
	select BOOT_ELF32
812
	select HAVE_PATA_PLATFORM
813
	select SIBYTE_SB1250
814
	select SWAP_IO_SPACE
815
	select SYS_HAS_CPU_SB1
816
	select SYS_SUPPORTS_BIG_ENDIAN
817
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
818
	select SYS_SUPPORTS_LITTLE_ENDIAN
819
	select ZONE_DMA32 if 64BIT
820
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
821

822 823
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
824
	select BOOT_ELF32
825
	select HAVE_PATA_PLATFORM
826 827
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
828
	select SYS_HAS_CPU_SB1
829 830 831
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
832
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
833

834 835
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
836 837 838
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
839
	select SYS_HAS_CPU_SB1
840 841
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
842
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
843

844 845
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
846
	select BOOT_ELF32
847 848
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
849
	select SWAP_IO_SPACE
850
	select SYS_HAS_CPU_SB1
851
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
852
	select SYS_SUPPORTS_HIGHMEM
853
	select SYS_SUPPORTS_LITTLE_ENDIAN
854
	select ZONE_DMA32 if 64BIT
855
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
856

857 858
config SNI_RM
	bool "SNI RM200/300/400"
859 860
	select ARC_MEMORY
	select ARC_PROMLIB
861 862
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
863
	select FW_SNIPROM if CPU_BIG_ENDIAN
864
	select ARCH_MAY_HAVE_PC_FDC
865
	select ARCH_MIGHT_HAVE_PC_PARPORT
866
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
867
	select BOOT_ELF32
868
	select CEVT_R4K
869
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
870
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
871 872
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
873
	select HAVE_EISA
874
	select HAVE_PCSPKR_PLATFORM
875
	select HAVE_PCI
876
	select IRQ_MIPS_CPU
877
	select I8253
L
Linus Torvalds 已提交
878 879
	select I8259
	select ISA
880
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
881
	select SYS_HAS_CPU_R4X00
882
	select SYS_HAS_CPU_R5000
883
	select SYS_HAS_CPU_R10000
884
	select R5000_CPU_SCACHE
885
	select SYS_HAS_EARLY_PRINTK
886
	select SYS_SUPPORTS_32BIT_KERNEL
887
	select SYS_SUPPORTS_64BIT_KERNEL
888
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
889
	select SYS_SUPPORTS_HIGHMEM
890
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
891
	help
892 893
	  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
894 895 896
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

897 898
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
899

900 901
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
902

903 904 905 906 907
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
908
	select HAVE_PCI
909
	select IRQ_MIPS_CPU
910 911 912 913 914
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
915
	select GPIOLIB
916
	select MIPS_L1_CACHE_SHIFT_4
917 918 919 920
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

921 922
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
923
	select CEVT_R4K
924
	select ARCH_HAS_PHYS_TO_DMA
925
	select HAVE_RAPIDIO
926
	select PHYS_ADDR_T_64BIT
927 928
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
929
	select EDAC_SUPPORT
930
	select EDAC_ATOMIC_SCRUB
931 932
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
933
	select SYS_HAS_EARLY_PRINTK
934
	select SYS_HAS_CPU_CAVIUM_OCTEON
935
	select HAVE_PCI
936 937 938
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
D
David Daney 已提交
939
	select ZONE_DMA32
940
	select HOLES_IN_ZONE
941
	select GPIOLIB
942 943 944
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
945 946
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
947
	select BUILTIN_DTB
948
	select MTD_COMPLEX_MAPPINGS
949
	select SWIOTLB
S
Steven J. Hill 已提交
950
	select SYS_SUPPORTS_RELOCATABLE
951 952 953 954 955 956 957 958 959 960 961 962 963
	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.

964 965 966 967 968 969
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
970
	select HAVE_PCI
971 972 973
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
974
	select PHYS_ADDR_T_64BIT
975 976 977 978 979
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
980
	select IRQ_MIPS_CPU
981
	select ZONE_DMA32 if 64BIT
982 983
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
984 985
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
986 987 988 989
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

990 991 992 993 994 995
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
996
	select HAVE_PCI
997 998
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
999
	select PHYS_ADDR_T_64BIT
1000
	select GPIOLIB
1001 1002 1003 1004 1005 1006
	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
1007
	select IRQ_MIPS_CPU
1008
	select ZONE_DMA32 if 64BIT
1009 1010
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1011
	select USE_OF
1012 1013
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1014 1015 1016 1017
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1018
endchoice
L
Linus Torvalds 已提交
1019

R
Ralf Baechle 已提交
1020
source "arch/mips/alchemy/Kconfig"
1021
source "arch/mips/ath25/Kconfig"
1022
source "arch/mips/ath79/Kconfig"
1023
source "arch/mips/bcm47xx/Kconfig"
1024
source "arch/mips/bcm63xx/Kconfig"
1025
source "arch/mips/bmips/Kconfig"
1026
source "arch/mips/generic/Kconfig"
1027
source "arch/mips/jazz/Kconfig"
1028
source "arch/mips/jz4740/Kconfig"
1029
source "arch/mips/lantiq/Kconfig"
1030
source "arch/mips/pic32/Kconfig"
1031
source "arch/mips/pistachio/Kconfig"
J
John Crispin 已提交
1032
source "arch/mips/ralink/Kconfig"
1033
source "arch/mips/sgi-ip27/Kconfig"
1034
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1035
source "arch/mips/txx9/Kconfig"
1036
source "arch/mips/vr41xx/Kconfig"
1037
source "arch/mips/cavium-octeon/Kconfig"
1038
source "arch/mips/loongson2ef/Kconfig"
1039 1040
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1041
source "arch/mips/netlogic/Kconfig"
1042

1043 1044
endmenu

1045 1046 1047 1048
config GENERIC_HWEIGHT
	bool
	default y

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1049 1050 1051 1052
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1053
config SCHED_OMIT_FRAME_POINTER
1054 1055 1056
	bool
	default y

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1057 1058 1059
#
# Select some configuration options automatically based on user selections.
#
1060
config FW_ARC
L
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1061 1062
	bool

1063 1064 1065
config ARCH_MAY_HAVE_PC_FDC
	bool

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1066 1067 1068
config BOOT_RAW
	bool

1069 1070 1071
config CEVT_BCM1480
	bool

1072 1073 1074
config CEVT_DS1287
	bool

1075 1076 1077
config CEVT_GT641XX
	bool

1078 1079 1080
config CEVT_R4K
	bool

1081 1082 1083
config CEVT_SB1250
	bool

1084 1085 1086
config CEVT_TXX9
	bool

1087 1088 1089
config CSRC_BCM1480
	bool

1090 1091 1092
config CSRC_IOASIC
	bool

1093
config CSRC_R4K
1094
	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1095 1096
	bool

1097 1098 1099
config CSRC_SB1250
	bool

1100 1101 1102
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1103
config GPIO_TXX9
1104
	select GPIOLIB
1105 1106
	bool

1107
config FW_CFE
1108 1109
	bool

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1110 1111 1112
config ARCH_SUPPORTS_UPROBES
	bool

1113
config DMA_MAYBE_COHERENT
1114
	select ARCH_HAS_DMA_COHERENCE_H
1115 1116 1117
	select DMA_NONCOHERENT
	bool

1118 1119
config DMA_PERDEV_COHERENT
	bool
1120
	select ARCH_HAS_SETUP_DMA_OPS
1121
	select DMA_NONCOHERENT
1122

1123 1124
config DMA_NONCOHERENT
	bool
1125 1126 1127 1128 1129 1130 1131
	#
	# 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.
	#
1132
	select ARCH_HAS_DMA_WRITE_COMBINE
1133
	select ARCH_HAS_DMA_PREP_COHERENT
1134
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1135
	select ARCH_HAS_DMA_SET_UNCACHED
1136
	select DMA_NONCOHERENT_MMAP
1137
	select DMA_NONCOHERENT_CACHE_SYNC
1138
	select NEED_DMA_MAP_STATE
1139

1140
config SYS_HAS_EARLY_PRINTK
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1141 1142
	bool

1143
config SYS_SUPPORTS_HOTPLUG_CPU
1144 1145
	bool

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1146 1147 1148 1149 1150 1151
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1152 1153 1154
config SYNC_R4K
	bool

1155
config NO_IOPORT_MAP
1156 1157
	def_bool n

1158
config GENERIC_CSUM
1159
	def_bool CPU_NO_LOAD_STORE_LR
1160

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

1166 1167
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1168
	select GENERIC_ISA_DMA
1169

1170 1171 1172 1173 1174 1175 1176 1177 1178
config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

1179 1180 1181
config ISA_DMA_API
	bool

1182 1183 1184
config HOLES_IN_ZONE
	bool

1185 1186 1187
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1188 1189 1190
	  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.
1191

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1192 1193 1194 1195 1196 1197 1198 1199 1200
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


1201
#
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Masanari Iida 已提交
1202
# Endianness selection.  Sufficiently obscure so many users don't know what to
1203 1204 1205 1206
# 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
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1207
	prompt "Endianness selection"
L
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1208 1209
	help
	  Some MIPS machines can be configured for either little or big endian
1210
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1211
	  Linux distribution.  In general there is one preferred byteorder for a
1212
	  particular system but some systems are just as commonly used in the
1213
	  one or the other endianness.
1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224

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

1225 1226 1227
config EXPORT_UASM
	bool

1228 1229 1230
config SYS_SUPPORTS_APM_EMULATION
	bool

1231 1232 1233 1234 1235
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
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1236

1237 1238
config SYS_SUPPORTS_HUGETLBFS
	bool
1239
	depends on CPU_SUPPORTS_HUGEPAGES
1240 1241
	default y

1242 1243 1244
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
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1245 1246 1247
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1248 1249 1250 1251 1252 1253
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1254 1255 1256
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1257 1258 1259
config IRQ_GT641XX
	bool

1260
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1261 1262
	bool

1263 1264 1265
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1266 1267 1268
config NO_EXCEPT_FILL
	bool

1269 1270 1271 1272
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1273
	select IRQ_MIPS_CPU
1274 1275 1276 1277 1278
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1279
	select SYS_SUPPORTS_MIPS16
1280 1281 1282 1283 1284 1285
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1286 1287 1288
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1289 1290 1291
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1292 1293 1294
config SGI_HAS_INDYDOG
	bool

1295 1296 1297
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312
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

1313
config FW_ARC32
1314 1315
	bool

P
Paul Bolle 已提交
1316
config FW_SNIPROM
1317 1318
	bool

L
Linus Torvalds 已提交
1319 1320 1321
config BOOT_ELF32
	bool

1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333
config MIPS_L1_CACHE_SHIFT_4
	bool

config MIPS_L1_CACHE_SHIFT_5
	bool

config MIPS_L1_CACHE_SHIFT_6
	bool

config MIPS_L1_CACHE_SHIFT_7
	bool

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1334 1335
config MIPS_L1_CACHE_SHIFT
	int
1336
	default "7" if MIPS_L1_CACHE_SHIFT_7
1337 1338 1339
	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
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1340 1341
	default "5"

1342 1343 1344
config ARC_CMDLINE_ONLY
	bool

L
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1345 1346
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1347
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1348 1349 1350 1351 1352 1353 1354

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1355
config FW_ARC64
L
Linus Torvalds 已提交
1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1367
config CPU_LOONGSON64
1368
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1369
	depends on SYS_HAS_CPU_LOONGSON64
1370
	select ARCH_HAS_PHYS_TO_DMA
1371 1372
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1373 1374 1375
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1376
	select CPU_SUPPORTS_MSA
1377 1378
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1379 1380
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1381
	select MIPS_ASID_BITS_VARIABLE
1382
	select MIPS_PGD_C0_CONTEXT
1383
	select MIPS_L1_CACHE_SHIFT_6
1384
	select GPIOLIB
1385
	select SWIOTLB
1386
	select HAVE_KVM
1387
	help
1388 1389 1390 1391 1392 1393 1394 1395
		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"
1396
	default n
J
Jiaxun Yang 已提交
1397
	depends on CPU_LOONGSON64
1398
	help
1399
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1400
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1401
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1402 1403 1404 1405 1406 1407
	  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
1408
	  new Loongson-3 machines only, please say 'Y' here.
1409

1410
config CPU_LOONGSON3_WORKAROUNDS
1411
	bool "Old Loongson-3 LLSC Workarounds"
1412
	default y if SMP
J
Jiaxun Yang 已提交
1413
	depends on CPU_LOONGSON64
1414
	help
1415
	  Loongson-3 processors have the llsc issues which require workarounds.
1416 1417
	  Without workarounds the system may hang unexpectedly.

1418
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1419 1420 1421 1422 1423 1424
	  The workarounds have no significant side effect on them but may
	  decrease the performance of the system so this option should be
	  disabled unless the kernel is intended to be run on old systems.

	  If unsure, please say Y.

1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436
config CPU_LOONGSON3_CPUCFG_EMULATION
	bool "Emulate the CPUCFG instruction on older Loongson cores"
	default y
	depends on CPU_LOONGSON64
	help
	  Loongson-3A R4 and newer have the CPUCFG instruction available for
	  userland to query CPU capabilities, much like CPUID on x86. This
	  option provides emulation of the instruction on older Loongson
	  cores, back to Loongson-3A1000.

	  If unsure, please say Y.

1437 1438 1439
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1440
	select CPU_LOONGSON2EF
1441 1442 1443 1444
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1445
	  It has an internal FPGA northbridge, which is compatible to
1446 1447 1448 1449 1450
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1451
	select CPU_LOONGSON2EF
1452
	select GPIOLIB
1453 1454 1455 1456 1457 1458 1459 1460
	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.

1461 1462 1463
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1464
	select CPU_LOONGSON32
1465
	select LEDS_GPIO_REGISTER
1466 1467
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1468 1469
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1470

Y
Yang Ling 已提交
1471 1472 1473
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1474
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1475 1476 1477
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1478 1479
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1480

1481 1482
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1483
	depends on SYS_HAS_CPU_MIPS32_R1
1484
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1485
	select CPU_SUPPORTS_32BIT_KERNEL
1486
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1487
	help
1488
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499
	  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"
1500
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1501
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1502
	select CPU_SUPPORTS_32BIT_KERNEL
1503
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1504
	select CPU_SUPPORTS_MSA
1505
	select HAVE_KVM
1506
	help
1507
	  Choose this option to build a kernel for release 2 or later of the
1508 1509 1510 1511 1512
	  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.

S
Serge Semin 已提交
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527
config CPU_MIPS32_R5
	bool "MIPS32 Release 5"
	depends on SYS_HAS_CPU_MIPS32_R5
	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 5 or later of the
	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS32r5 processor. If you own an older
	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

1528
config CPU_MIPS32_R6
1529
	bool "MIPS32 Release 6"
1530 1531
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1532
	select CPU_NO_LOAD_STORE_LR
1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543
	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.

1544 1545
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1546
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1547
	select CPU_HAS_PREFETCH
1548 1549
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1550
	select CPU_SUPPORTS_HIGHMEM
1551
	select CPU_SUPPORTS_HUGEPAGES
1552 1553 1554 1555 1556 1557
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
R
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1558 1559 1560 1561 1562 1563 1564
	  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"
1565
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1566
	select CPU_HAS_PREFETCH
R
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1567 1568
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1569
	select CPU_SUPPORTS_HIGHMEM
1570
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1571
	select CPU_SUPPORTS_MSA
1572
	select HAVE_KVM
R
Ralf Baechle 已提交
1573 1574 1575 1576 1577 1578
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
Linus Torvalds 已提交
1579

S
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1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596
config CPU_MIPS64_R5
	bool "MIPS64 Release 5"
	depends on SYS_HAS_CPU_MIPS64_R5
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select CPU_SUPPORTS_MSA
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
	select HAVE_KVM
	help
	  Choose this option to build a kernel for release 5 or later of the
	  MIPS64 architecture.  This is a intermediate MIPS architecture
	  release partly implementing release 6 features. Though there is no
	  any hardware known to be based on this release.

1597
config CPU_MIPS64_R6
1598
	bool "MIPS64 Release 6"
1599 1600
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1601
	select CPU_NO_LOAD_STORE_LR
1602 1603 1604
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1605
	select CPU_SUPPORTS_HUGEPAGES
1606
	select CPU_SUPPORTS_MSA
1607
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1608
	select HAVE_KVM
1609 1610 1611 1612 1613 1614
	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.

1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636
config CPU_P5600
	bool "MIPS Warrior P5600"
	depends on SYS_HAS_CPU_P5600
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
	select CPU_SUPPORTS_CPUFREQ
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
	  level features like up to six P5600 calculation cores, CM2 with L2
	  cache, IOCU/IOMMU (though might be unused depending on the system-
	  specific IP core configuration), GIC, CPC, virtualisation module,
	  eJTAG and PDtrace.

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config CPU_R3000
	bool "R3000"
1639
	depends on SYS_HAS_CPU_R3000
1640
	select CPU_HAS_WB
1641
	select CPU_R3K_TLB
1642
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
1654
	depends on SYS_HAS_CPU_TX39XX
1655
	select CPU_SUPPORTS_32BIT_KERNEL
1656
	select CPU_R3K_TLB
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config CPU_VR41XX
	bool "R41xx"
1660
	depends on SYS_HAS_CPU_VR41XX
1661 1662
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	help
1664
	  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"
1671
	depends on SYS_HAS_CPU_R4X00
1672 1673
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1674
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1681
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1683 1684
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1685
	select CPU_SUPPORTS_HUGEPAGES
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1686 1687 1688

config CPU_R5000
	bool "R5000"
1689
	depends on SYS_HAS_CPU_R5000
1690 1691
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1692
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1696 1697 1698 1699 1700
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1701
	select CPU_SUPPORTS_HUGEPAGES
1702 1703 1704 1705
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1708
	depends on SYS_HAS_CPU_NEVADA
1709 1710
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1711
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1717
	depends on SYS_HAS_CPU_R10000
1718
	select CPU_HAS_PREFETCH
1719 1720
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1722
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1728
	depends on SYS_HAS_CPU_RM7000
1729
	select CPU_HAS_PREFETCH
1730 1731
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1733
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1737
	depends on SYS_HAS_CPU_SB1
1738 1739
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1741
	select CPU_SUPPORTS_HUGEPAGES
1742
	select WEAK_ORDERING
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1743

1744 1745
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1746
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1747 1748 1749 1750
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1751
	select CPU_SUPPORTS_HUGEPAGES
1752 1753
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1754
	select MIPS_L1_CACHE_SHIFT_7
1755
	select HAVE_KVM
1756 1757 1758 1759 1760 1761
	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.

1762 1763 1764 1765
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1766
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1767 1768 1769 1770 1771
	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
1772
	select IRQ_MIPS_CPU
1773 1774
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1775
	select CPU_SUPPORTS_HIGHMEM
1776
	select CPU_HAS_PREFETCH
1777 1778
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1779
	help
1780
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1781

1782 1783 1784 1785 1786 1787
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1788
	select CPU_SUPPORTS_HUGEPAGES
1789 1790 1791 1792
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1793 1794 1795 1796 1797 1798 1799 1800 1801 1802

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
1803
	select CPU_MIPSR2
1804
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1806 1807
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1810 1811 1812
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1813 1814
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
		   CPU_P5600
1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from the 3.5 release such as
	  support for Enhanced Virtual Addressing (EVA).

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

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config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
1834
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
S
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1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from release 5 such as
	  support for Extended Physical Addressing (XPA).

config CPU_MIPS32_R5_XPA
	bool "Extended Physical Addressing (XPA)"
	depends on CPU_MIPS32_R5_FEATURES
	depends on !EVA
	depends on !PAGE_SIZE_4KB
	depends on SYS_SUPPORTS_HIGHMEM
	select XPA
	select HIGHMEM
1848
	select PHYS_ADDR_T_64BIT
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	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  If unsure, say 'N' here.

1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884
if CPU_LOONGSON2F
config CPU_NOP_WORKAROUNDS
	bool

config CPU_JUMP_WORKAROUNDS
	bool

config CPU_LOONGSON2F_WORKAROUNDS
	bool "Loongson 2F Workarounds"
	default y
	select CPU_NOP_WORKAROUNDS
	select CPU_JUMP_WORKAROUNDS
	help
	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
	  require workarounds.  Without workarounds the system may hang
	  unexpectedly.  For more information please refer to the gas
	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.

	  Loongson 2F03 and later have fixed these issues and no workarounds
	  are needed.  The workarounds have no significant side effect on them
	  but may decrease the performance of the system so this option should
	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
	  systems.

	  If unsure, please say Y.
endif # CPU_LOONGSON2F

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

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1898 1899 1900 1901
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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

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

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

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

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

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

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

1948
config SYS_HAS_CPU_LOONGSON2E
1949 1950
	bool

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

1956 1957 1958
config SYS_HAS_CPU_LOONGSON1B
	bool

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1959 1960 1961
config SYS_HAS_CPU_LOONGSON1C
	bool

1962 1963 1964 1965 1966 1967
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1968 1969 1970
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1971 1972
config SYS_HAS_CPU_MIPS32_R5
	bool
1973
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1974

1975 1976
config SYS_HAS_CPU_MIPS32_R6
	bool
1977
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1978

1979 1980 1981 1982 1983 1984
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1985 1986
config SYS_HAS_CPU_MIPS64_R6
	bool
1987
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1988

1989 1990 1991 1992
config SYS_HAS_CPU_P5600
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
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

2011 2012 2013
config SYS_HAS_CPU_R5500
	bool

2014 2015 2016 2017 2018
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2019
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2020 2021 2022 2023 2024 2025 2026

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2027 2028 2029
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2030
config SYS_HAS_CPU_BMIPS
2031 2032
	bool

2033
config SYS_HAS_CPU_BMIPS32_3300
2034
	bool
2035
	select SYS_HAS_CPU_BMIPS
2036 2037 2038

config SYS_HAS_CPU_BMIPS4350
	bool
2039
	select SYS_HAS_CPU_BMIPS
2040 2041 2042

config SYS_HAS_CPU_BMIPS4380
	bool
2043
	select SYS_HAS_CPU_BMIPS
2044 2045 2046

config SYS_HAS_CPU_BMIPS5000
	bool
2047
	select SYS_HAS_CPU_BMIPS
2048
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2049

2050 2051 2052
config SYS_HAS_CPU_XLR
	bool

2053 2054 2055
config SYS_HAS_CPU_XLP
	bool

2056 2057 2058 2059
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2060 2061
config WEAK_ORDERING
	bool
2062 2063 2064 2065 2066 2067 2068

#
# 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
2069 2070 2071
endmenu

#
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2072
# These two indicate any level of the MIPS32 and MIPS64 architecture
2073 2074 2075
#
config CPU_MIPS32
	bool
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2076
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2077
		     CPU_MIPS32_R6 || CPU_P5600
2078 2079 2080

config CPU_MIPS64
	bool
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2081 2082
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
		     CPU_MIPS64_R6
2083 2084

#
2085
# These indicate the revision of the architecture
2086 2087 2088 2089 2090 2091 2092
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2093
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2094
	select CPU_HAS_RIXI
2095
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2096
	select MIPS_SPRAM
2097

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2098 2099
config CPU_MIPSR5
	bool
2100
	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
S
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2101 2102 2103 2104
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

2105 2106 2107
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2108
	select CPU_HAS_RIXI
2109
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2110
	select HAVE_ARCH_BITREVERSE
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2111
	select MIPS_ASID_BITS_VARIABLE
2112
	select MIPS_CRC_SUPPORT
2113
	select MIPS_SPRAM
2114

2115 2116 2117 2118
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
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2119
	default 5 if CPU_MIPSR5
2120 2121 2122 2123 2124 2125
	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.

2126 2127 2128
config EVA
	bool

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2129 2130 2131
config XPA
	bool

2132 2133 2134 2135 2136 2137 2138 2139
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2140 2141 2142 2143
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2144 2145
config CPU_SUPPORTS_HUGEPAGES
	bool
2146
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2147 2148
config MIPS_PGD_C0_CONTEXT
	bool
2149
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2150

2151 2152 2153 2154
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2155 2156
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2157

2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173
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.
2174

2175 2176 2177 2178 2179 2180 2181 2182
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

2183 2184
config KVM_GUEST
	bool "KVM Guest Kernel"
2185
	depends on CPU_MIPS32_R2
2186
	depends on BROKEN_ON_SMP
2187
	help
2188 2189
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2190

2191 2192
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2193
	depends on KVM_GUEST
2194
	default 100
2195
	help
2196 2197 2198
	  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.
2199

2200 2201 2202 2203
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2204 2205 2206 2207 2208 2209 2210
	  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.

2211 2212
	  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
2221 2222 2223 2224
	  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"
2228
	depends on CPU_CAVIUM_OCTEON
2229
	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
2233 2234
	  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"
2238
	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
2242 2243
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2245 2246 2247
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2248
	depends on !MIPS_VA_BITS_48
2249 2250 2251 2252 2253 2254
	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
2262
	  writing this option is still high experimental.
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endchoice

2266 2267
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2268 2269 2270 2271 2272 2273
	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
2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289
	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

2297 2298 2299 2300 2301 2302 2303
#
# 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
2321
	bool
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2323 2324
config CPU_GENERIC_DUMP_TLB
	bool
2325
	default y if !(CPU_R3000 || CPU_TX39XX)
2326

2327
config MIPS_FP_SUPPORT
2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340
	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.
2341

2342 2343
config CPU_R2300_FPU
	bool
2344
	depends on MIPS_FP_SUPPORT
2345 2346
	default y if CPU_R3000 || CPU_TX39XX

2347 2348 2349
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2352
	depends on MIPS_FP_SUPPORT
2353
	default y if !CPU_R2300_FPU
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2355 2356
config CPU_R4K_CACHE_TLB
	bool
2357
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2358

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config MIPS_MT_SMP
2360
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2361
	default y
2362
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2363
	select CPU_MIPSR2_IRQ_VI
2364
	select CPU_MIPSR2_IRQ_EI
2365
	select SYNC_R4K
2366
	select MIPS_MT
2367
	select SMP
2368
	select SMP_UP
2369 2370
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2371
	select MIPS_PERF_SHARED_TC_COUNTERS
2372
	help
2373 2374 2375 2376 2377
	  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>.
2378

2379 2380 2381
config MIPS_MT
	bool

2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393
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

2394 2395 2396
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
2401

2402 2403
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2404
	depends on CPU_MIPSR6
2405
	depends on MIPS_FP_SUPPORT
2406 2407 2408 2409
	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
2410
	  default. You can enable it using the 'mipsr2emu' kernel option.
2411 2412 2413
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2414 2415 2416 2417 2418 2419 2420
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2421 2422
config MIPS_VPE_LOADER
	bool "VPE loader support."
2423
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2424 2425 2426 2427 2428 2429
	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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2431 2432 2433 2434 2435
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2436 2437 2438 2439 2440
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451
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
2452 2453
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2454

2455 2456 2457 2458 2459
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2460 2461 2462 2463 2464
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2465
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2467
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2468
	select SMP
2469
	select SYNC_R4K
2470
	select SYS_SUPPORTS_SMP
2471 2472 2473
	select WEAK_ORDERING
	default n
	help
2474 2475 2476
	  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.
2477

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

2481 2482
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2483
	depends on SYS_SUPPORTS_MIPS_CPS
2484
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2486 2487
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2489
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2490 2491 2492 2493 2494 2495 2496 2497 2498
	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.

2499
config MIPS_CPS_PM
2500
	depends on MIPS_CPS
2501 2502
	bool

2503 2504
config MIPS_CM
	bool
2505
	select MIPS_CPC
2506

2507 2508
config MIPS_CPC
	bool
2509

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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

2520 2521 2522 2523 2524 2525 2526 2527
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

2528 2529
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2530
	bool "SmartMIPS"
2531 2532 2533 2534 2535 2536 2537 2538 2539
	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.

2540
config CPU_MICROMIPS
2541
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2542
	bool "microMIPS"
2543 2544 2545 2546
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2547 2548
endchoice

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config CPU_HAS_MSA
2550
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2552
	depends on MIPS_FP_SUPPORT
2553
	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
2557 2558 2559 2560 2561
	  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
2566
	bool
2567

2568 2569 2570
config XKS01
	bool

2571 2572 2573 2574 2575 2576 2577
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2578 2579 2580
config CPU_HAS_RIXI
	bool

2581
config CPU_NO_LOAD_STORE_LR
2582 2583
	bool
	help
2584
	  CPU lacks support for unaligned load and store instructions:
2585
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2586 2587
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2588

2589 2590 2591
#
# Vectored interrupt mode is an R2 feature
#
2592
config CPU_MIPSR2_IRQ_VI
2593
	bool
2594

2595 2596 2597
#
# Extended interrupt mode is an R2 feature
#
2598
config CPU_MIPSR2_IRQ_EI
2599
	bool
2600

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2619 2620 2621 2622
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2623 2624 2625 2626 2627 2628 2629
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
2631 2632 2633
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2637 2638 2639
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"
2655
	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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2663 2664 2665
config SYS_SUPPORTS_SMARTMIPS
	bool

2666 2667 2668
config SYS_SUPPORTS_MICROMIPS
	bool

2669 2670 2671 2672 2673 2674 2675
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

2679 2680
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2682

2683 2684
config ARCH_SPARSEMEM_ENABLE
	bool
2685
	select SPARSEMEM_STATIC if !SGI_IP27
2686

2687 2688 2689 2690 2691 2692 2693
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
2694
	  leave it disabled; on single node systems leave this option
2695 2696 2697 2698 2699
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2700 2701 2702 2703 2704 2705 2706 2707
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

2708 2709
config RELOCATABLE
	bool "Relocatable kernel"
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	depends on SYS_SUPPORTS_RELOCATABLE
	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2714
		   CPU_P5600 || CAVIUM_OCTEON_SOC
2715 2716 2717 2718 2719 2720
	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

2721 2722 2723 2724 2725
config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00100000"
2726
	help
2727 2728 2729 2730 2731 2732 2733 2734 2735 2736
	  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.

2737 2738 2739
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
2740
	help
2741 2742 2743 2744
	  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.
2745

2746
	  Entropy is generated using any coprocessor 0 registers available.
2747

2748
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2749

2750
	  If unsure, say N.
2751 2752 2753 2754 2755 2756 2757

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"
2758
	help
2759 2760 2761 2762 2763 2764 2765 2766
	  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

2772 2773
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)
2775 2776 2777 2778 2779
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790
config DMI
	bool "Enable DMI scanning"
	depends on MACH_LOONGSON64
	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
	default y
	help
	  Enabled scanning of DMI to identify machine quirks. Say Y
	  here unless you have verified that your setup is not
	  affected by entries in the DMI blacklist. Required by PNP
	  BIOS code.

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config SMP
	bool "Multi-Processing support"
2793 2794
	depends on SYS_SUPPORTS_SMP
	help
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2795
	  This enables support for systems with more than one CPU. If you have
2796 2797
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2798

2799
	  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,
2802
	  uniprocessor machines. On a uniprocessor machine, the kernel
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2803 2804 2805 2806 2807
	  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
2809
	  <https://www.tldp.org/docs.html#howto>.
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2810 2811 2812

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

2813 2814 2815 2816 2817 2818 2819 2820 2821 2822
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.

2823 2824 2825
config SMP_UP
	bool

2826 2827 2828
config SYS_SUPPORTS_MIPS_CMP
	bool

2829 2830 2831
config SYS_SUPPORTS_MIPS_CPS
	bool

2832 2833 2834
config SYS_SUPPORTS_SMP
	bool

2835 2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849
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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2851 2852
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2853
	depends on SMP
2854 2855 2856 2857 2858
	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
2863 2864
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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2865 2866

	  This is purely to save memory - each supported CPU adds
2867 2868 2869
	  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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2871 2872
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2873 2874 2875 2876 2877 2878 2879 2880 2881

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
2882

2883 2884 2885 2886 2887 2888 2889 2890
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2891
	  Allows the configuration of the timer frequency.
2892

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2893 2894 2895
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2896
	config HZ_48
2897
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918

	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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2919 2920 2921
config SYS_SUPPORTS_24HZ
	bool

2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944
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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2945 2946 2947 2948 2949 2950 2951
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2952 2953 2954 2955
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2956
	default 24 if HZ_24
2957 2958 2959 2960 2961 2962 2963 2964
	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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2965 2966 2967
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2968
config KEXEC
2969
	bool "Kexec system call"
2970
	select KEXEC_CORE
2971 2972 2973
	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
2974
	  but it is independent of the system firmware.   And like a reboot
2975 2976
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2977
	  The name comes from the similarity to the exec system call.
2978 2979 2980

	  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
2981 2982 2983
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2984

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2985
config CRASH_DUMP
2986 2987
	bool "Kernel crash dumps"
	help
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2988 2989 2990 2991 2992 2993 2994 2995 2996
	  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
2997
	hex "Physical address where the kernel is loaded"
2998
	default "0xffffffff84000000"
2999 3000
	depends on CRASH_DUMP
	help
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3001 3002 3003 3004 3005 3006
	  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).

3007 3008
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
3009
	depends on PROC_FS
3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
	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.

3024
config MIPS_O32_FP64_SUPPORT
3025
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3026 3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037
	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.

3038 3039 3040 3041 3042 3043 3044 3045
	  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.
3046

3047
config USE_OF
3048
	bool
3049
	select OF
3050
	select OF_EARLY_FLATTREE
3051
	select IRQ_DOMAIN
3052

3053 3054 3055
config UHI_BOOT
	bool

3056 3057 3058
config BUILTIN_DTB
	bool

3059
choice
3060
	prompt "Kernel appended dtb support" if USE_OF
3061 3062 3063 3064 3065 3066 3067
	default MIPS_NO_APPENDED_DTB

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

3068 3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081
	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.

3082
	config MIPS_RAW_APPENDED_DTB
3083
		bool "vmlinux.bin or vmlinuz.bin"
3084 3085
		help
		  With this option, the boot code will look for a device tree binary
3086
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3087 3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099
		  (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

3100 3101
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
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3102
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
J
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3103
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
J
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3104
					 !CAVIUM_OCTEON_SOC
3105 3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116
	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"
3117 3118 3119 3120

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3121 3122
endchoice

3123 3124
endmenu

3125 3126 3127 3128 3129 3130 3131 3132
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3133 3134
config PGTABLE_LEVELS
	int
3135
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3136 3137 3138
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3139 3140 3141
config MIPS_AUTO_PFN_OFFSET
	bool

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3142 3143
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3144
config PCI_DRIVERS_GENERIC
3145
	select PCI_DOMAINS_GENERIC if PCI
3146 3147 3148 3149 3150
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3151
	select PCI_DOMAINS if PCI
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3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164

#
# 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
3165 3166 3167 3168 3169 3170 3171 3172
	  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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3173 3174 3175 3176 3177

config MMU
	bool
	default y

3178 3179 3180 3181 3182 3183 3184 3185 3186
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
3187
	default 8
3188 3189

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3190
	default 15
3191

3192 3193
config I8253
	bool
3194
	select CLKSRC_I8253
3195
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3196
	select MIPS_EXTERNAL_TIMER
3197

3198 3199 3200
config ZONE_DMA
	bool

3201 3202 3203
config ZONE_DMA32
	bool

L
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3204 3205 3206 3207 3208 3209
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3210
	bool
L
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3211 3212 3213 3214

config COMPAT
	bool

3215 3216 3217
config SYSVIPC_COMPAT
	bool

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3218 3219
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3220 3221 3222 3223 3224
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3225 3226 3227 3228 3229 3230 3231 3232 3233
	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"
3234
	depends on 64BIT
3235
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3236 3237 3238
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3239 3240 3241 3242 3243 3244 3245 3246 3247 3248 3249
	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
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3250
	select ELFCORE
L
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3251

3252 3253
menu "Power management options"

W
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3254 3255
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3256
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
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3257

J
Johannes Berg 已提交
3258 3259
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3260
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3261

3262
source "kernel/power/Kconfig"
R
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3263

L
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3264 3265
endmenu

3266 3267 3268 3269
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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3270 3271

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3272 3273
source "drivers/cpufreq/Kconfig"
endif
W
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3274

P
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3275 3276 3277 3278
source "drivers/cpuidle/Kconfig"

endmenu

3279 3280
source "drivers/firmware/Kconfig"

3281
source "arch/mips/kvm/Kconfig"
3282 3283

source "arch/mips/vdso/Kconfig"