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 SET_FS
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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
L
Linus Torvalds 已提交
525
	select BOOT_ELF32
526
	select BOOT_RAW
P
Paul Burton 已提交
527
	select BUILTIN_DTB
528
	select CEVT_R4K
529
	select CLKSRC_MIPS_GIC
530
	select COMMON_CLK
531
	select CSRC_R4K
532
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
533
	select GENERIC_ISA_DMA
534
	select HAVE_PCSPKR_PLATFORM
535
	select HAVE_PCI
536
	select I8253
L
Linus Torvalds 已提交
537
	select I8259
538
	select IRQ_MIPS_CPU
539
	select MIPS_BONITO64
540
	select MIPS_CPU_SCACHE
541
	select MIPS_GIC
542
	select MIPS_L1_CACHE_SHIFT_6
543
	select MIPS_MSC
544
	select PCI_GT64XXX_PCI0
545
	select SMP_UP if SMP
L
Linus Torvalds 已提交
546
	select SWAP_IO_SPACE
547 548
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
549
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
550
	select SYS_HAS_CPU_MIPS32_R5
551
	select SYS_HAS_CPU_MIPS32_R6
552
	select SYS_HAS_CPU_MIPS64_R1
553
	select SYS_HAS_CPU_MIPS64_R2
554
	select SYS_HAS_CPU_MIPS64_R6
555 556
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
557 558
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
559
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
560
	select SYS_SUPPORTS_HIGHMEM
561
	select SYS_SUPPORTS_LITTLE_ENDIAN
562
	select SYS_SUPPORTS_MICROMIPS
563
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
564
	select SYS_SUPPORTS_MIPS_CMP
565
	select SYS_SUPPORTS_MIPS_CPS
566
	select SYS_SUPPORTS_MULTITHREADING
567
	select SYS_SUPPORTS_RELOCATABLE
568
	select SYS_SUPPORTS_SMARTMIPS
569
	select SYS_SUPPORTS_VPE_LOADER
570
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
571
	select USE_OF
572
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
573
	help
574
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
575 576
	  board.

577 578 579 580 581 582 583 584
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.

585
config MACH_VR41XX
586
	bool "NEC VR4100 series based machines"
587
	select CEVT_R4K
588
	select CSRC_R4K
589
	select SYS_HAS_CPU_VR41XX
590
	select SYS_SUPPORTS_MIPS16
591
	select GPIOLIB
592

593 594 595 596
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
597
	  Support for NXP Semiconductors STB220 Development Board.
598 599 600 601 602 603

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
604
	  Support for NXP Semiconductors STB225 Development Board.
605

J
John Crispin 已提交
606 607 608 609 610 611
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
612
	select IRQ_MIPS_CPU
J
John Crispin 已提交
613 614 615 616 617
	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
618
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
619 620
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
621 622
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
623

L
Linus Torvalds 已提交
624
config SGI_IP22
625
	bool "SGI IP22 (Indy/Indigo2)"
626
	select ARC_MEMORY
627
	select ARC_PROMLIB
628 629
	select FW_ARC
	select FW_ARC32
630
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
631
	select BOOT_ELF32
632
	select CEVT_R4K
633
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
634
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
635
	select DMA_NONCOHERENT
636
	select HAVE_EISA
637
	select I8253
638
	select I8259
L
Linus Torvalds 已提交
639
	select IP22_CPU_SCACHE
640
	select IRQ_MIPS_CPU
641
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
642 643
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
644
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
645 646 647
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
648
	select SWAP_IO_SPACE
649 650
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
651
	select SYS_HAS_EARLY_PRINTK
652 653
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
654
	select SYS_SUPPORTS_BIG_ENDIAN
655
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
656 657 658 659 660 661
	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
662
	bool "SGI IP27 (Origin200/2000)"
663
	select ARCH_HAS_PHYS_TO_DMA
664
	select ARCH_SPARSEMEM_ENABLE
665 666
	select FW_ARC
	select FW_ARC64
667
	select ARC_CMDLINE_ONLY
668
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
669
	select DEFAULT_SGI_PARTITION
670
	select SYS_HAS_EARLY_PRINTK
671
	select HAVE_PCI
672
	select IRQ_MIPS_CPU
673
	select IRQ_DOMAIN_HIERARCHY
674
	select NR_CPUS_DEFAULT_64
675 676
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
677
	select SYS_HAS_CPU_R10000
678
	select SYS_SUPPORTS_64BIT_KERNEL
679
	select SYS_SUPPORTS_BIG_ENDIAN
680
	select SYS_SUPPORTS_NUMA
681
	select SYS_SUPPORTS_SMP
682
	select MIPS_L1_CACHE_SHIFT_7
683
	select NUMA
L
Linus Torvalds 已提交
684 685 686 687 688
	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
689
config SGI_IP28
690
	bool "SGI IP28 (Indigo2 R10k)"
691
	select ARC_MEMORY
692
	select ARC_PROMLIB
693 694
	select FW_ARC
	select FW_ARC64
695
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
696 697 698 699 700 701
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
702
	select IRQ_MIPS_CPU
703
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
704 705 706 707
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
708
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
709 710 711 712 713
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
714
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
715 716
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
717
	select MIPS_L1_CACHE_SHIFT_7
718 719 720
	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
721

722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748
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
749
config SGI_IP32
750
	bool "SGI IP32 (O2)"
751 752
	select ARC_MEMORY
	select ARC_PROMLIB
753
	select ARCH_HAS_PHYS_TO_DMA
754 755
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
756
	select BOOT_ELF32
757
	select CEVT_R4K
758
	select CSRC_R4K
L
Linus Torvalds 已提交
759
	select DMA_NONCOHERENT
760
	select HAVE_PCI
761
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
762 763
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
764 765 766
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
767
	select SYS_HAS_CPU_NEVADA
768
	select SYS_SUPPORTS_64BIT_KERNEL
769 770
	select SYS_SUPPORTS_BIG_ENDIAN
	help
771
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
772

773 774
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
775
	select BOOT_ELF32
776
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
777
	select SWAP_IO_SPACE
778
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
779 780 781
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

782 783
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
784
	select BOOT_ELF32
785
	select SIBYTE_BCM1120
786
	select SWAP_IO_SPACE
787
	select SYS_HAS_CPU_SB1
788
	select SYS_SUPPORTS_BIG_ENDIAN
789
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
790

791 792
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
793
	select BOOT_ELF32
794
	select SIBYTE_BCM1125
795
	select SWAP_IO_SPACE
796
	select SYS_HAS_CPU_SB1
797
	select SYS_SUPPORTS_BIG_ENDIAN
798
	select SYS_SUPPORTS_HIGHMEM
799
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
800

801
config SIBYTE_RHONE
802
	bool "Sibyte BCM91125E-Rhone"
803 804 805
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
806
	select SYS_HAS_CPU_SB1
807 808
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
809

810 811
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
812
	select BOOT_ELF32
813
	select HAVE_PATA_PLATFORM
814
	select SIBYTE_SB1250
815
	select SWAP_IO_SPACE
816
	select SYS_HAS_CPU_SB1
817
	select SYS_SUPPORTS_BIG_ENDIAN
818
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
819
	select SYS_SUPPORTS_LITTLE_ENDIAN
820
	select ZONE_DMA32 if 64BIT
821
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
822

823 824
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
825
	select BOOT_ELF32
826
	select HAVE_PATA_PLATFORM
827 828
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
829
	select SYS_HAS_CPU_SB1
830 831 832
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
833
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
834

835 836
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
837 838 839
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
840
	select SYS_HAS_CPU_SB1
841 842
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
843
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
844

845 846
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
847
	select BOOT_ELF32
848 849
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
850
	select SWAP_IO_SPACE
851
	select SYS_HAS_CPU_SB1
852
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
853
	select SYS_SUPPORTS_HIGHMEM
854
	select SYS_SUPPORTS_LITTLE_ENDIAN
855
	select ZONE_DMA32 if 64BIT
856
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
857

858 859
config SNI_RM
	bool "SNI RM200/300/400"
860 861
	select ARC_MEMORY
	select ARC_PROMLIB
862 863
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
864
	select FW_SNIPROM if CPU_BIG_ENDIAN
865
	select ARCH_MAY_HAVE_PC_FDC
866
	select ARCH_MIGHT_HAVE_PC_PARPORT
867
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
868
	select BOOT_ELF32
869
	select CEVT_R4K
870
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
871
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
872 873
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
874
	select HAVE_EISA
875
	select HAVE_PCSPKR_PLATFORM
876
	select HAVE_PCI
877
	select IRQ_MIPS_CPU
878
	select I8253
L
Linus Torvalds 已提交
879 880
	select I8259
	select ISA
881
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
882
	select SYS_HAS_CPU_R4X00
883
	select SYS_HAS_CPU_R5000
884
	select SYS_HAS_CPU_R10000
885
	select R5000_CPU_SCACHE
886
	select SYS_HAS_EARLY_PRINTK
887
	select SYS_SUPPORTS_32BIT_KERNEL
888
	select SYS_SUPPORTS_64BIT_KERNEL
889
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
890
	select SYS_SUPPORTS_HIGHMEM
891
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
892
	help
893 894
	  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
895 896 897
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

898 899
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
900

901 902
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
903

904 905 906 907 908
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
909
	select HAVE_PCI
910
	select IRQ_MIPS_CPU
911 912 913 914 915
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
916
	select GPIOLIB
917
	select MIPS_L1_CACHE_SHIFT_4
918 919 920 921
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

922 923
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
924
	select CEVT_R4K
925
	select ARCH_HAS_PHYS_TO_DMA
926
	select HAVE_RAPIDIO
927
	select PHYS_ADDR_T_64BIT
928 929
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
930
	select EDAC_SUPPORT
931
	select EDAC_ATOMIC_SCRUB
932 933
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
934
	select SYS_HAS_EARLY_PRINTK
935
	select SYS_HAS_CPU_CAVIUM_OCTEON
936
	select HAVE_PCI
937 938 939
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
D
David Daney 已提交
940
	select ZONE_DMA32
941
	select HOLES_IN_ZONE
942
	select GPIOLIB
943 944 945
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
946 947
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
948
	select BUILTIN_DTB
949
	select MTD_COMPLEX_MAPPINGS
950
	select SWIOTLB
S
Steven J. Hill 已提交
951
	select SYS_SUPPORTS_RELOCATABLE
952 953 954 955 956 957 958 959 960 961 962 963 964
	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.

965 966 967 968 969 970
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
971
	select HAVE_PCI
972 973 974
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
975
	select PHYS_ADDR_T_64BIT
976 977 978 979 980
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
981
	select IRQ_MIPS_CPU
982
	select ZONE_DMA32 if 64BIT
983 984
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
985 986
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
987 988 989 990
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

991 992 993 994 995 996
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
997
	select HAVE_PCI
998 999
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1000
	select PHYS_ADDR_T_64BIT
1001
	select GPIOLIB
1002 1003 1004 1005 1006 1007
	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
1008
	select IRQ_MIPS_CPU
1009
	select ZONE_DMA32 if 64BIT
1010 1011
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1012
	select USE_OF
1013 1014
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1015 1016 1017 1018
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1019
endchoice
L
Linus Torvalds 已提交
1020

R
Ralf Baechle 已提交
1021
source "arch/mips/alchemy/Kconfig"
1022
source "arch/mips/ath25/Kconfig"
1023
source "arch/mips/ath79/Kconfig"
1024
source "arch/mips/bcm47xx/Kconfig"
1025
source "arch/mips/bcm63xx/Kconfig"
1026
source "arch/mips/bmips/Kconfig"
1027
source "arch/mips/generic/Kconfig"
1028
source "arch/mips/jazz/Kconfig"
1029
source "arch/mips/jz4740/Kconfig"
1030
source "arch/mips/lantiq/Kconfig"
1031
source "arch/mips/pic32/Kconfig"
1032
source "arch/mips/pistachio/Kconfig"
J
John Crispin 已提交
1033
source "arch/mips/ralink/Kconfig"
1034
source "arch/mips/sgi-ip27/Kconfig"
1035
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1036
source "arch/mips/txx9/Kconfig"
1037
source "arch/mips/vr41xx/Kconfig"
1038
source "arch/mips/cavium-octeon/Kconfig"
1039
source "arch/mips/loongson2ef/Kconfig"
1040 1041
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1042
source "arch/mips/netlogic/Kconfig"
1043

1044 1045
endmenu

1046 1047 1048 1049
config GENERIC_HWEIGHT
	bool
	default y

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1050 1051 1052 1053
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1054
config SCHED_OMIT_FRAME_POINTER
1055 1056 1057
	bool
	default y

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1058 1059 1060
#
# Select some configuration options automatically based on user selections.
#
1061
config FW_ARC
L
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1062 1063
	bool

1064 1065 1066
config ARCH_MAY_HAVE_PC_FDC
	bool

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1067 1068 1069
config BOOT_RAW
	bool

1070 1071 1072
config CEVT_BCM1480
	bool

1073 1074 1075
config CEVT_DS1287
	bool

1076 1077 1078
config CEVT_GT641XX
	bool

1079 1080 1081
config CEVT_R4K
	bool

1082 1083 1084
config CEVT_SB1250
	bool

1085 1086 1087
config CEVT_TXX9
	bool

1088 1089 1090
config CSRC_BCM1480
	bool

1091 1092 1093
config CSRC_IOASIC
	bool

1094
config CSRC_R4K
1095
	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1096 1097
	bool

1098 1099 1100
config CSRC_SB1250
	bool

1101 1102 1103
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1104
config GPIO_TXX9
1105
	select GPIOLIB
1106 1107
	bool

1108
config FW_CFE
1109 1110
	bool

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1111 1112 1113
config ARCH_SUPPORTS_UPROBES
	bool

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

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

1124 1125
config DMA_NONCOHERENT
	bool
1126 1127 1128 1129 1130 1131 1132
	#
	# 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.
	#
1133
	select ARCH_HAS_DMA_WRITE_COMBINE
1134
	select ARCH_HAS_DMA_PREP_COHERENT
1135
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1136
	select ARCH_HAS_DMA_SET_UNCACHED
1137
	select DMA_NONCOHERENT_MMAP
1138
	select DMA_NONCOHERENT_CACHE_SYNC
1139
	select NEED_DMA_MAP_STATE
1140

1141
config SYS_HAS_EARLY_PRINTK
L
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1142 1143
	bool

1144
config SYS_SUPPORTS_HOTPLUG_CPU
1145 1146
	bool

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1147 1148 1149 1150 1151 1152
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1153 1154 1155
config SYNC_R4K
	bool

1156
config NO_IOPORT_MAP
1157 1158
	def_bool n

1159
config GENERIC_CSUM
1160
	def_bool CPU_NO_LOAD_STORE_LR
1161

1162 1163 1164
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1165
	select ISA_DMA_API
1166

1167 1168
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1169
	select GENERIC_ISA_DMA
1170

1171 1172 1173 1174 1175 1176 1177 1178 1179
config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

1180 1181 1182
config ISA_DMA_API
	bool

1183 1184 1185
config HOLES_IN_ZONE
	bool

1186 1187 1188
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1189 1190 1191
	  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.
1192

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1193 1194 1195 1196 1197 1198 1199 1200 1201
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


1202
#
M
Masanari Iida 已提交
1203
# Endianness selection.  Sufficiently obscure so many users don't know what to
1204 1205 1206 1207
# 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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1208
	prompt "Endianness selection"
L
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1209 1210
	help
	  Some MIPS machines can be configured for either little or big endian
1211
	  byte order. These modes require different kernels and a different
M
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1212
	  Linux distribution.  In general there is one preferred byteorder for a
1213
	  particular system but some systems are just as commonly used in the
1214
	  one or the other endianness.
1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225

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

1226 1227 1228
config EXPORT_UASM
	bool

1229 1230 1231
config SYS_SUPPORTS_APM_EMULATION
	bool

1232 1233 1234 1235 1236
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
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1237

1238 1239
config SYS_SUPPORTS_HUGETLBFS
	bool
1240
	depends on CPU_SUPPORTS_HUGEPAGES
1241 1242
	default y

1243 1244 1245
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
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1246 1247 1248
config IRQ_CPU_RM7K
	bool

M
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1249 1250 1251 1252 1253 1254
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1255 1256 1257
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1258 1259 1260
config IRQ_GT641XX
	bool

1261
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1262 1263
	bool

1264 1265 1266
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1267 1268 1269
config NO_EXCEPT_FILL
	bool

1270 1271 1272 1273
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1274
	select IRQ_MIPS_CPU
1275 1276 1277 1278 1279
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1280
	select SYS_SUPPORTS_MIPS16
1281 1282 1283 1284 1285 1286
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1287 1288 1289
config MIPS_SPRAM
	bool

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Linus Torvalds 已提交
1290 1291 1292
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1293 1294 1295
config SGI_HAS_INDYDOG
	bool

1296 1297 1298
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313
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

1314
config FW_ARC32
1315 1316
	bool

P
Paul Bolle 已提交
1317
config FW_SNIPROM
1318 1319
	bool

L
Linus Torvalds 已提交
1320 1321 1322
config BOOT_ELF32
	bool

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

1343 1344 1345
config ARC_CMDLINE_ONLY
	bool

L
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1346 1347
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1348
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1349 1350 1351 1352 1353 1354 1355

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1356
config FW_ARC64
L
Linus Torvalds 已提交
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1368
config CPU_LOONGSON64
1369
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1370
	depends on SYS_HAS_CPU_LOONGSON64
1371
	select ARCH_HAS_PHYS_TO_DMA
1372 1373
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1374 1375 1376
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1377
	select CPU_SUPPORTS_MSA
1378 1379
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1380 1381
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1382
	select MIPS_ASID_BITS_VARIABLE
1383
	select MIPS_PGD_C0_CONTEXT
1384
	select MIPS_L1_CACHE_SHIFT_6
1385
	select GPIOLIB
1386
	select SWIOTLB
1387
	select HAVE_KVM
1388
	help
1389 1390 1391 1392 1393 1394 1395 1396
		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"
1397
	default n
J
Jiaxun Yang 已提交
1398
	depends on CPU_LOONGSON64
1399
	help
1400
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1401
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1402
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1403 1404 1405 1406 1407 1408
	  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
1409
	  new Loongson-3 machines only, please say 'Y' here.
1410

1411
config CPU_LOONGSON3_WORKAROUNDS
1412
	bool "Old Loongson-3 LLSC Workarounds"
1413
	default y if SMP
J
Jiaxun Yang 已提交
1414
	depends on CPU_LOONGSON64
1415
	help
1416
	  Loongson-3 processors have the llsc issues which require workarounds.
1417 1418
	  Without workarounds the system may hang unexpectedly.

1419
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1420 1421 1422 1423 1424 1425
	  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.

1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437
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.

1438 1439 1440
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1441
	select CPU_LOONGSON2EF
1442 1443 1444 1445
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1446
	  It has an internal FPGA northbridge, which is compatible to
1447 1448 1449 1450 1451
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1452
	select CPU_LOONGSON2EF
1453
	select GPIOLIB
1454 1455 1456 1457 1458 1459 1460 1461
	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.

1462 1463 1464
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1465
	select CPU_LOONGSON32
1466
	select LEDS_GPIO_REGISTER
1467 1468
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1469 1470
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1471

Y
Yang Ling 已提交
1472 1473 1474
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1475
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1476 1477 1478
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1479 1480
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1481

1482 1483
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1484
	depends on SYS_HAS_CPU_MIPS32_R1
1485
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1486
	select CPU_SUPPORTS_32BIT_KERNEL
1487
	select CPU_SUPPORTS_HIGHMEM
R
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1488
	help
1489
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500
	  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"
1501
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1502
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1503
	select CPU_SUPPORTS_32BIT_KERNEL
1504
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1505
	select CPU_SUPPORTS_MSA
1506
	select HAVE_KVM
1507
	help
1508
	  Choose this option to build a kernel for release 2 or later of the
1509 1510 1511 1512 1513
	  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
1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528
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.

1529
config CPU_MIPS32_R6
1530
	bool "MIPS32 Release 6"
1531 1532
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1533
	select CPU_NO_LOAD_STORE_LR
1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544
	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.

1545 1546
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1547
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1548
	select CPU_HAS_PREFETCH
1549 1550
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1551
	select CPU_SUPPORTS_HIGHMEM
1552
	select CPU_SUPPORTS_HUGEPAGES
1553 1554 1555 1556 1557 1558
	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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1559 1560 1561 1562 1563 1564 1565
	  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"
1566
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1567
	select CPU_HAS_PREFETCH
R
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1568 1569
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1570
	select CPU_SUPPORTS_HIGHMEM
1571
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1572
	select CPU_SUPPORTS_MSA
1573
	select HAVE_KVM
R
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1574 1575 1576 1577 1578 1579
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
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1580

S
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1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597
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.

1598
config CPU_MIPS64_R6
1599
	bool "MIPS64 Release 6"
1600 1601
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1602
	select CPU_NO_LOAD_STORE_LR
1603 1604 1605
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1606
	select CPU_SUPPORTS_HUGEPAGES
1607
	select CPU_SUPPORTS_MSA
1608
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1609
	select HAVE_KVM
1610 1611 1612 1613 1614 1615
	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.

1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637
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"
1640
	depends on SYS_HAS_CPU_R3000
1641
	select CPU_HAS_WB
1642
	select CPU_R3K_TLB
1643
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

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

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

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

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

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

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

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

config CPU_RM7000
	bool "RM7000"
1729
	depends on SYS_HAS_CPU_RM7000
1730
	select CPU_HAS_PREFETCH
1731 1732
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1734
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1738
	depends on SYS_HAS_CPU_SB1
1739 1740
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1742
	select CPU_SUPPORTS_HUGEPAGES
1743
	select WEAK_ORDERING
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1744

1745 1746
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1747
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1748 1749 1750 1751
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1752
	select CPU_SUPPORTS_HUGEPAGES
1753 1754
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1755
	select MIPS_L1_CACHE_SHIFT_7
1756
	select HAVE_KVM
1757 1758 1759 1760 1761 1762
	help
	  The Cavium Octeon processor is a highly integrated chip containing
	  many ethernet hardware widgets for networking tasks. The processor
	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
	  Full details can be found at http://www.caviumnetworks.com.

1763 1764 1765 1766
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1767
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1768 1769 1770 1771 1772
	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
	select CPU_SUPPORTS_32BIT_KERNEL
	select DMA_NONCOHERENT
1773
	select IRQ_MIPS_CPU
1774 1775
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1776
	select CPU_SUPPORTS_HIGHMEM
1777
	select CPU_HAS_PREFETCH
1778 1779
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1780
	help
1781
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1782

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

config CPU_XLP
	bool "Netlogic XLP SoC"
	depends on SYS_HAS_CPU_XLP
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select CPU_HAS_PREFETCH
1804
	select CPU_MIPSR2
1805
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1807 1808
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1811 1812 1813
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1814 1815
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
		   CPU_P5600
1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831
	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
1835
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
S
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1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848
	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
1849
	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.

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 1885
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

1886 1887 1888 1889
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1890
	select HAVE_KERNEL_LZ4
1891
	select HAVE_KERNEL_LZMA
1892
	select HAVE_KERNEL_LZO
1893
	select HAVE_KERNEL_XZ
1894 1895 1896 1897 1898

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1899 1900 1901 1902
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1904 1905 1906 1907
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1908
	select CPU_SUPPORTS_HUGEPAGES
1909
	select ARCH_HAS_PHYS_TO_DMA
1910

1911
config CPU_LOONGSON32
1912 1913
	bool
	select CPU_MIPS32
1914
	select CPU_MIPSR2
1915 1916 1917
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1918
	select CPU_SUPPORTS_CPUFREQ
1919

1920
config CPU_BMIPS32_3300
1921
	select SMP_UP if SMP
1922
	bool
1923 1924 1925 1926 1927 1928 1929 1930

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1931
	select MIPS_L1_CACHE_SHIFT_6
1932 1933
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1934
	select CPU_HAS_RIXI
1935 1936 1937 1938

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1939
	select MIPS_L1_CACHE_SHIFT_7
1940 1941
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1942
	select CPU_HAS_RIXI
1943

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1944
config SYS_HAS_CPU_LOONGSON64
1945 1946
	bool
	select CPU_SUPPORTS_CPUFREQ
1947
	select CPU_HAS_RIXI
1948

1949
config SYS_HAS_CPU_LOONGSON2E
1950 1951
	bool

1952 1953
config SYS_HAS_CPU_LOONGSON2F
	bool
1954 1955
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1956

1957 1958 1959
config SYS_HAS_CPU_LOONGSON1B
	bool

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1960 1961 1962
config SYS_HAS_CPU_LOONGSON1C
	bool

1963 1964 1965 1966 1967 1968
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1969 1970 1971
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1972 1973
config SYS_HAS_CPU_MIPS32_R5
	bool
1974
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1975

1976 1977
config SYS_HAS_CPU_MIPS32_R6
	bool
1978
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1979

1980 1981 1982 1983 1984 1985
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1986 1987
config SYS_HAS_CPU_MIPS64_R6
	bool
1988
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1989

1990 1991 1992 1993
config SYS_HAS_CPU_P5600
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
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

2012 2013 2014
config SYS_HAS_CPU_R5500
	bool

2015 2016 2017 2018 2019
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2020
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2021 2022 2023 2024 2025 2026 2027

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2028 2029 2030
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2031
config SYS_HAS_CPU_BMIPS
2032 2033
	bool

2034
config SYS_HAS_CPU_BMIPS32_3300
2035
	bool
2036
	select SYS_HAS_CPU_BMIPS
2037 2038 2039

config SYS_HAS_CPU_BMIPS4350
	bool
2040
	select SYS_HAS_CPU_BMIPS
2041 2042 2043

config SYS_HAS_CPU_BMIPS4380
	bool
2044
	select SYS_HAS_CPU_BMIPS
2045 2046 2047

config SYS_HAS_CPU_BMIPS5000
	bool
2048
	select SYS_HAS_CPU_BMIPS
2049
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2050

2051 2052 2053
config SYS_HAS_CPU_XLR
	bool

2054 2055 2056
config SYS_HAS_CPU_XLP
	bool

2057 2058 2059 2060
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2061 2062
config WEAK_ORDERING
	bool
2063 2064 2065 2066 2067 2068 2069

#
# 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
2070 2071 2072
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2074 2075 2076
#
config CPU_MIPS32
	bool
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2077
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2078
		     CPU_MIPS32_R6 || CPU_P5600
2079 2080 2081

config CPU_MIPS64
	bool
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2082 2083
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
		     CPU_MIPS64_R6
2084 2085

#
2086
# These indicate the revision of the architecture
2087 2088 2089 2090 2091 2092 2093
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2094
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2095
	select CPU_HAS_RIXI
2096
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2097
	select MIPS_SPRAM
2098

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2099 2100
config CPU_MIPSR5
	bool
2101
	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
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2102 2103 2104 2105
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

2106 2107 2108
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2109
	select CPU_HAS_RIXI
2110
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2111
	select HAVE_ARCH_BITREVERSE
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2112
	select MIPS_ASID_BITS_VARIABLE
2113
	select MIPS_CRC_SUPPORT
2114
	select MIPS_SPRAM
2115

2116 2117 2118 2119
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
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2120
	default 5 if CPU_MIPSR5
2121 2122 2123 2124 2125 2126
	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.

2127 2128 2129
config EVA
	bool

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2130 2131 2132
config XPA
	bool

2133 2134 2135 2136 2137 2138 2139 2140
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2141 2142 2143 2144
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2145 2146
config CPU_SUPPORTS_HUGEPAGES
	bool
2147
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2148 2149
config MIPS_PGD_C0_CONTEXT
	bool
2150
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2151

2152 2153 2154 2155
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2156 2157
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2158

2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 2174
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.
2175

2176 2177 2178 2179 2180 2181 2182 2183
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

2184 2185
config KVM_GUEST
	bool "KVM Guest Kernel"
2186
	depends on CPU_MIPS32_R2
2187
	depends on BROKEN_ON_SMP
2188
	help
2189 2190
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2191

2192 2193
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2194
	depends on KVM_GUEST
2195
	default 100
2196
	help
2197 2198 2199
	  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.
2200

2201 2202 2203 2204
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2205 2206 2207 2208 2209 2210 2211
	  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.

2212 2213
	  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
2222 2223 2224 2225
	  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"
2229
	depends on CPU_CAVIUM_OCTEON
2230
	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
2234 2235
	  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"
2239
	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
2243 2244
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2246 2247 2248
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2249
	depends on !MIPS_VA_BITS_48
2250 2251 2252 2253 2254 2255
	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
2263
	  writing this option is still high experimental.
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endchoice

2267 2268
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2269 2270 2271 2272 2273 2274
	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
2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286 2287 2288 2289 2290
	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

2298 2299 2300 2301 2302 2303 2304
#
# 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
2322
	bool
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2324 2325
config CPU_GENERIC_DUMP_TLB
	bool
2326
	default y if !(CPU_R3000 || CPU_TX39XX)
2327

2328
config MIPS_FP_SUPPORT
2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339 2340 2341
	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.
2342

2343 2344
config CPU_R2300_FPU
	bool
2345
	depends on MIPS_FP_SUPPORT
2346 2347
	default y if CPU_R3000 || CPU_TX39XX

2348 2349 2350
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2353
	depends on MIPS_FP_SUPPORT
2354
	default y if !CPU_R2300_FPU
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2356 2357
config CPU_R4K_CACHE_TLB
	bool
2358
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2359

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config MIPS_MT_SMP
2361
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2362
	default y
2363
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2364
	select CPU_MIPSR2_IRQ_VI
2365
	select CPU_MIPSR2_IRQ_EI
2366
	select SYNC_R4K
2367
	select MIPS_MT
2368
	select SMP
2369
	select SMP_UP
2370 2371
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2372
	select MIPS_PERF_SHARED_TC_COUNTERS
2373
	help
2374 2375 2376 2377 2378
	  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>.
2379

2380 2381 2382
config MIPS_MT
	bool

2383 2384 2385 2386 2387 2388 2389 2390 2391 2392 2393 2394
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

2395 2396 2397
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
2402

2403 2404
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2405
	depends on CPU_MIPSR6
2406
	depends on MIPS_FP_SUPPORT
2407 2408 2409 2410
	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
2411
	  default. You can enable it using the 'mipsr2emu' kernel option.
2412 2413 2414
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2415 2416 2417 2418 2419 2420 2421
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2422 2423
config MIPS_VPE_LOADER
	bool "VPE loader support."
2424
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2425 2426 2427 2428 2429 2430
	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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2432 2433 2434 2435 2436
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2437 2438 2439 2440 2441
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452
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
2453 2454
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2455

2456 2457 2458 2459 2460
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2461 2462 2463 2464 2465
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2466
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2468
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2469
	select SMP
2470
	select SYNC_R4K
2471
	select SYS_SUPPORTS_SMP
2472 2473 2474
	select WEAK_ORDERING
	default n
	help
2475 2476 2477
	  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.
2478

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

2482 2483
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2484
	depends on SYS_SUPPORTS_MIPS_CPS
2485
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2487 2488
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2490
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2491 2492 2493 2494 2495 2496 2497 2498 2499
	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.

2500
config MIPS_CPS_PM
2501
	depends on MIPS_CPS
2502 2503
	bool

2504 2505
config MIPS_CM
	bool
2506
	select MIPS_CPC
2507

2508 2509
config MIPS_CPC
	bool
2510

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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

2521 2522 2523 2524 2525 2526 2527 2528
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

2529 2530
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2531
	bool "SmartMIPS"
2532 2533 2534 2535 2536 2537 2538 2539 2540
	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.

2541
config CPU_MICROMIPS
2542
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2543
	bool "microMIPS"
2544 2545 2546 2547
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2548 2549
endchoice

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config CPU_HAS_MSA
2551
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2553
	depends on MIPS_FP_SUPPORT
2554
	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
2558 2559 2560 2561 2562
	  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
2567
	bool
2568

2569 2570 2571
config XKS01
	bool

2572 2573 2574 2575 2576 2577 2578
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2579 2580 2581
config CPU_HAS_RIXI
	bool

2582
config CPU_NO_LOAD_STORE_LR
2583 2584
	bool
	help
2585
	  CPU lacks support for unaligned load and store instructions:
2586
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2587 2588
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2589

2590 2591 2592
#
# Vectored interrupt mode is an R2 feature
#
2593
config CPU_MIPSR2_IRQ_VI
2594
	bool
2595

2596 2597 2598
#
# Extended interrupt mode is an R2 feature
#
2599
config CPU_MIPSR2_IRQ_EI
2600
	bool
2601

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617 2618 2619
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2620 2621 2622 2623
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2624 2625 2626 2627 2628 2629 2630
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
2632 2633 2634
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2638 2639 2640
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"
2656
	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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2664 2665 2666
config SYS_SUPPORTS_SMARTMIPS
	bool

2667 2668 2669
config SYS_SUPPORTS_MICROMIPS
	bool

2670 2671 2672 2673 2674 2675 2676
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

2680 2681
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2683

2684 2685
config ARCH_SPARSEMEM_ENABLE
	bool
2686
	select SPARSEMEM_STATIC if !SGI_IP27
2687

2688 2689 2690 2691 2692 2693 2694
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
2695
	  leave it disabled; on single node systems leave this option
2696 2697 2698 2699 2700
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2701 2702 2703 2704 2705 2706 2707 2708
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

2709 2710
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 || \
2715
		   CPU_P5600 || CAVIUM_OCTEON_SOC
2716 2717 2718 2719 2720 2721
	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

2722 2723 2724 2725 2726
config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00100000"
2727
	help
2728 2729 2730 2731 2732 2733 2734 2735 2736 2737
	  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.

2738 2739 2740
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
2741
	help
2742 2743 2744 2745
	  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.
2746

2747
	  Entropy is generated using any coprocessor 0 registers available.
2748

2749
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2750

2751
	  If unsure, say N.
2752 2753 2754 2755 2756 2757 2758

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"
2759
	help
2760 2761 2762 2763 2764 2765 2766 2767
	  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

2773 2774
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)
2776 2777 2778 2779 2780
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791
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"
2794 2795
	depends on SYS_SUPPORTS_SMP
	help
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2796
	  This enables support for systems with more than one CPU. If you have
2797 2798
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2799

2800
	  If you say N here, the kernel will run on uni- and multiprocessor
L
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2801 2802
	  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,
2803
	  uniprocessor machines. On a uniprocessor machine, the kernel
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2804 2805 2806 2807 2808
	  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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2809
	  See also the SMP-HOWTO available at
2810
	  <https://www.tldp.org/docs.html#howto>.
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2811 2812 2813

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

2814 2815 2816 2817 2818 2819 2820 2821 2822 2823
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.

2824 2825 2826
config SMP_UP
	bool

2827 2828 2829
config SYS_SUPPORTS_MIPS_CMP
	bool

2830 2831 2832
config SYS_SUPPORTS_MIPS_CPS
	bool

2833 2834 2835
config SYS_SUPPORTS_SMP
	bool

2836 2837 2838 2839 2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850
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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2852 2853
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2854
	depends on SMP
2855 2856 2857 2858 2859
	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
2864 2865
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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2866 2867

	  This is purely to save memory - each supported CPU adds
2868 2869 2870
	  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 2873
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2874 2875 2876 2877 2878 2879 2880 2881 2882

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
2883

2884 2885 2886 2887 2888 2889 2890 2891
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2892
	  Allows the configuration of the timer frequency.
2893

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2894 2895 2896
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2897
	config HZ_48
2898
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919

	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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2920 2921 2922
config SYS_SUPPORTS_24HZ
	bool

2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945
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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2946 2947 2948 2949 2950 2951 2952
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2953 2954 2955 2956
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2957
	default 24 if HZ_24
2958 2959 2960 2961 2962 2963 2964 2965
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

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Deng-Cheng Zhu 已提交
2966 2967 2968
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2969
config KEXEC
2970
	bool "Kexec system call"
2971
	select KEXEC_CORE
2972 2973 2974
	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
2975
	  but it is independent of the system firmware.   And like a reboot
2976 2977
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2978
	  The name comes from the similarity to the exec system call.
2979 2980 2981

	  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
2982 2983 2984
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2985

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2986
config CRASH_DUMP
2987 2988
	bool "Kernel crash dumps"
	help
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2989 2990 2991 2992 2993 2994 2995 2996 2997
	  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
2998
	hex "Physical address where the kernel is loaded"
2999
	default "0xffffffff84000000"
3000 3001
	depends on CRASH_DUMP
	help
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3002 3003 3004 3005 3006 3007
	  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).

3008 3009
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
3010
	depends on PROC_FS
3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024
	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.

3025
config MIPS_O32_FP64_SUPPORT
3026
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3027 3028 3029 3030 3031 3032 3033 3034 3035 3036 3037 3038
	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.

3039 3040 3041 3042 3043 3044 3045 3046
	  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.
3047

3048
config USE_OF
3049
	bool
3050
	select OF
3051
	select OF_EARLY_FLATTREE
3052
	select IRQ_DOMAIN
3053

3054 3055 3056
config UHI_BOOT
	bool

3057 3058 3059
config BUILTIN_DTB
	bool

3060
choice
3061
	prompt "Kernel appended dtb support" if USE_OF
3062 3063 3064 3065 3066 3067 3068
	default MIPS_NO_APPENDED_DTB

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

3069 3070 3071 3072 3073 3074 3075 3076 3077 3078 3079 3080 3081 3082
	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.

3083
	config MIPS_RAW_APPENDED_DTB
3084
		bool "vmlinux.bin or vmlinuz.bin"
3085 3086
		help
		  With this option, the boot code will look for a device tree binary
3087
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3088 3089 3090 3091 3092 3093 3094 3095 3096 3097 3098 3099 3100
		  (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

3101 3102
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
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3103
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
J
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3104
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
J
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3105
					 !CAVIUM_OCTEON_SOC
3106 3107 3108 3109 3110 3111 3112 3113 3114 3115 3116 3117
	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"
3118 3119 3120 3121

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3122 3123
endchoice

3124 3125
endmenu

3126 3127 3128 3129 3130 3131 3132 3133
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3134 3135
config PGTABLE_LEVELS
	int
3136
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3137 3138 3139
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3140 3141 3142
config MIPS_AUTO_PFN_OFFSET
	bool

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Linus Torvalds 已提交
3143 3144
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3145
config PCI_DRIVERS_GENERIC
3146
	select PCI_DOMAINS_GENERIC if PCI
3147 3148 3149 3150 3151
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3152
	select PCI_DOMAINS if PCI
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3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165

#
# 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
3166 3167 3168 3169 3170 3171 3172 3173
	  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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3174 3175 3176 3177 3178

config MMU
	bool
	default y

3179 3180 3181 3182 3183 3184 3185 3186 3187
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
3188
	default 8
3189 3190

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3191
	default 15
3192

3193 3194
config I8253
	bool
3195
	select CLKSRC_I8253
3196
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3197
	select MIPS_EXTERNAL_TIMER
3198

3199 3200 3201
config ZONE_DMA
	bool

3202 3203 3204
config ZONE_DMA32
	bool

L
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3205 3206 3207 3208 3209 3210
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3211
	bool
L
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3212 3213 3214 3215

config COMPAT
	bool

3216 3217 3218
config SYSVIPC_COMPAT
	bool

L
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3219 3220
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3221 3222 3223 3224 3225
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3226 3227 3228 3229 3230 3231 3232 3233 3234
	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"
3235
	depends on 64BIT
3236
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3237 3238 3239
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3240 3241 3242 3243 3244 3245 3246 3247 3248 3249 3250
	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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3251
	select ELFCORE
L
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3252

3253 3254
menu "Power management options"

W
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3255 3256
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3257
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3258

J
Johannes Berg 已提交
3259 3260
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3261
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3262

3263
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3264

L
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3265 3266
endmenu

3267 3268 3269 3270
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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3271 3272

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3273 3274
source "drivers/cpufreq/Kconfig"
endif
W
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3275

P
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3276 3277 3278 3279
source "drivers/cpuidle/Kconfig"

endmenu

3280 3281
source "drivers/firmware/Kconfig"

3282
source "arch/mips/kvm/Kconfig"
3283 3284

source "arch/mips/vdso/Kconfig"