Kconfig 84.0 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_HAS_FORTIFY_SOURCE
	select ARCH_HAS_KCOV
	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select BUILDTIME_TABLE_SORT
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	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
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	select HAVE_CONTEXT_TRACKING
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	select HAVE_TIF_NOHZ
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	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
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	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
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	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_SPARSE_SYSCALL_NR
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_REL if MODULES
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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config MIPS_FIXUP_BIGPHYS_ADDR
	bool

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menu "Machine selection"

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

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

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

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

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

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

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

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARC_MEMORY
	select ARC_PROMLIB
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select DMA_OPS
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select HAVE_LEGACY_CLK
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config MACH_LOONGSON32
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	bool "Loongson 32-bit family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the Loongson-1 family of machines.
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	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).
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config MACH_LOONGSON2EF
	bool "Loongson-2E/F family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of early Loongson-2E/F family of machines.
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config MACH_LOONGSON64
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	bool "Loongson 64-bit family of machines"
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	select ARCH_SPARSEMEM_ENABLE
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select BOOT_ELF32
	select BOARD_SCACHE
	select CSRC_R4K
	select CEVT_R4K
	select CPU_HAS_WB
	select FORCE_PCI
	select ISA
	select I8259
	select IRQ_MIPS_CPU
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	select NO_EXCEPT_FILL
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	select NR_CPUS_DEFAULT_64
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	select USE_GENERIC_EARLY_PRINTK_8250
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	select PCI_DRIVERS_GENERIC
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	select SYS_HAS_CPU_LOONGSON64
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT
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	select ZONE_DMA32
	select NUMA
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	select COMMON_CLK
	select USE_OF
	select BUILTIN_DTB
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	select PCI_HOST_GENERIC
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	help
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	  This enables the support of Loongson-2/3 family of machines.

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

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

576 577 578 579 580 581 582 583
config MACH_PIC32
	bool "Microchip PIC32 Family"
	help
	  This enables support for the Microchip PIC32 family of platforms.

	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
	  microcontrollers.

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

J
John Crispin 已提交
592 593 594 595 596 597
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
598
	select IRQ_MIPS_CPU
J
John Crispin 已提交
599 600 601 602 603
	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
604
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
605 606
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
607 608
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
609

L
Linus Torvalds 已提交
610
config SGI_IP22
611
	bool "SGI IP22 (Indy/Indigo2)"
612
	select ARC_MEMORY
613
	select ARC_PROMLIB
614 615
	select FW_ARC
	select FW_ARC32
616
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
617
	select BOOT_ELF32
618
	select CEVT_R4K
619
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
620
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
621
	select DMA_NONCOHERENT
622
	select HAVE_EISA
623
	select I8253
624
	select I8259
L
Linus Torvalds 已提交
625
	select IP22_CPU_SCACHE
626
	select IRQ_MIPS_CPU
627
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
628 629
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
630
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
631 632 633
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
634
	select SWAP_IO_SPACE
635 636
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
637
	select SYS_HAS_EARLY_PRINTK
638 639
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
640
	select SYS_SUPPORTS_BIG_ENDIAN
641
	select WAR_R4600_V1_INDEX_ICACHEOP
642
	select WAR_R4600_V1_HIT_CACHEOP
643
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
644 645 646 647 648 649
	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
650
	bool "SGI IP27 (Origin200/2000)"
651
	select ARCH_HAS_PHYS_TO_DMA
652
	select ARCH_SPARSEMEM_ENABLE
653 654
	select FW_ARC
	select FW_ARC64
655
	select ARC_CMDLINE_ONLY
656
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
657
	select DEFAULT_SGI_PARTITION
658
	select SYS_HAS_EARLY_PRINTK
659
	select HAVE_PCI
660
	select IRQ_MIPS_CPU
661
	select IRQ_DOMAIN_HIERARCHY
662
	select NR_CPUS_DEFAULT_64
663 664
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
665
	select SYS_HAS_CPU_R10000
666
	select SYS_SUPPORTS_64BIT_KERNEL
667
	select SYS_SUPPORTS_BIG_ENDIAN
668
	select SYS_SUPPORTS_NUMA
669
	select SYS_SUPPORTS_SMP
670
	select MIPS_L1_CACHE_SHIFT_7
671
	select NUMA
L
Linus Torvalds 已提交
672 673 674 675 676
	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
677
config SGI_IP28
678
	bool "SGI IP28 (Indigo2 R10k)"
679
	select ARC_MEMORY
680
	select ARC_PROMLIB
681 682
	select FW_ARC
	select FW_ARC64
683
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
684 685 686 687 688 689
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
690
	select IRQ_MIPS_CPU
691
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
692 693 694 695
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
696
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
697 698 699 700 701
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
702
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
703 704
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
705
	select MIPS_L1_CACHE_SHIFT_7
706 707 708
	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
709

710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
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
737
config SGI_IP32
738
	bool "SGI IP32 (O2)"
739 740
	select ARC_MEMORY
	select ARC_PROMLIB
741
	select ARCH_HAS_PHYS_TO_DMA
742 743
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
744
	select BOOT_ELF32
745
	select CEVT_R4K
746
	select CSRC_R4K
L
Linus Torvalds 已提交
747
	select DMA_NONCOHERENT
748
	select HAVE_PCI
749
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
750 751
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
752 753 754
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
755
	select SYS_HAS_CPU_NEVADA
756
	select SYS_SUPPORTS_64BIT_KERNEL
757 758
	select SYS_SUPPORTS_BIG_ENDIAN
	help
759
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
760

761 762
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
763
	select BOOT_ELF32
764
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
765
	select SWAP_IO_SPACE
766
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
767 768 769
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

770 771
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
772
	select BOOT_ELF32
773
	select SIBYTE_BCM1120
774
	select SWAP_IO_SPACE
775
	select SYS_HAS_CPU_SB1
776
	select SYS_SUPPORTS_BIG_ENDIAN
777
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
778

779 780
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
781
	select BOOT_ELF32
782
	select SIBYTE_BCM1125
783
	select SWAP_IO_SPACE
784
	select SYS_HAS_CPU_SB1
785
	select SYS_SUPPORTS_BIG_ENDIAN
786
	select SYS_SUPPORTS_HIGHMEM
787
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
788

789
config SIBYTE_RHONE
790
	bool "Sibyte BCM91125E-Rhone"
791 792 793
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
794
	select SYS_HAS_CPU_SB1
795 796
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
797

798 799
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
800
	select BOOT_ELF32
801
	select HAVE_PATA_PLATFORM
802
	select SIBYTE_SB1250
803
	select SWAP_IO_SPACE
804
	select SYS_HAS_CPU_SB1
805
	select SYS_SUPPORTS_BIG_ENDIAN
806
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
807
	select SYS_SUPPORTS_LITTLE_ENDIAN
808
	select ZONE_DMA32 if 64BIT
809
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
810

811 812
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
813
	select BOOT_ELF32
814
	select HAVE_PATA_PLATFORM
815 816
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
817
	select SYS_HAS_CPU_SB1
818 819 820
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
821
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
822

823 824
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
825 826 827
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
828
	select SYS_HAS_CPU_SB1
829 830
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
831
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
832

833 834
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
835
	select BOOT_ELF32
836 837
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
838
	select SWAP_IO_SPACE
839
	select SYS_HAS_CPU_SB1
840
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
841
	select SYS_SUPPORTS_HIGHMEM
842
	select SYS_SUPPORTS_LITTLE_ENDIAN
843
	select ZONE_DMA32 if 64BIT
844
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
845

846 847
config SNI_RM
	bool "SNI RM200/300/400"
848 849
	select ARC_MEMORY
	select ARC_PROMLIB
850 851
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
852
	select FW_SNIPROM if CPU_BIG_ENDIAN
853
	select ARCH_MAY_HAVE_PC_FDC
854
	select ARCH_MIGHT_HAVE_PC_PARPORT
855
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
856
	select BOOT_ELF32
857
	select CEVT_R4K
858
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
859
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
860 861
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
862
	select HAVE_EISA
863
	select HAVE_PCSPKR_PLATFORM
864
	select HAVE_PCI
865
	select IRQ_MIPS_CPU
866
	select I8253
L
Linus Torvalds 已提交
867 868
	select I8259
	select ISA
869
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
870
	select SYS_HAS_CPU_R4X00
871
	select SYS_HAS_CPU_R5000
872
	select SYS_HAS_CPU_R10000
873
	select R5000_CPU_SCACHE
874
	select SYS_HAS_EARLY_PRINTK
875
	select SYS_SUPPORTS_32BIT_KERNEL
876
	select SYS_SUPPORTS_64BIT_KERNEL
877
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
878
	select SYS_SUPPORTS_HIGHMEM
879
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
880
	help
881 882
	  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
883 884 885
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

886 887
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
888

889 890
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
891

892 893 894 895 896
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
897
	select HAVE_PCI
898
	select IRQ_MIPS_CPU
899 900 901 902 903
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
904
	select GPIOLIB
905
	select MIPS_L1_CACHE_SHIFT_4
906 907 908 909
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

910 911
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
912
	select CEVT_R4K
913
	select ARCH_HAS_PHYS_TO_DMA
914
	select HAVE_RAPIDIO
915
	select PHYS_ADDR_T_64BIT
916 917
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
918
	select EDAC_SUPPORT
919
	select EDAC_ATOMIC_SCRUB
920 921
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
922
	select SYS_HAS_EARLY_PRINTK
923
	select SYS_HAS_CPU_CAVIUM_OCTEON
924
	select HAVE_PCI
925 926 927
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
D
David Daney 已提交
928
	select ZONE_DMA32
929
	select HOLES_IN_ZONE
930
	select GPIOLIB
931 932 933
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
934 935
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
936
	select BUILTIN_DTB
937
	select MTD_COMPLEX_MAPPINGS
938
	select SWIOTLB
S
Steven J. Hill 已提交
939
	select SYS_SUPPORTS_RELOCATABLE
940 941 942 943 944 945 946 947 948 949 950 951 952
	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.

953 954 955 956 957 958
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
959
	select HAVE_PCI
960 961 962
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
963
	select PHYS_ADDR_T_64BIT
964 965 966 967 968
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
969
	select IRQ_MIPS_CPU
970
	select ZONE_DMA32 if 64BIT
971 972
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
973 974
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
975 976 977 978
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

979 980 981 982 983 984
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
985
	select HAVE_PCI
986 987
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
988
	select PHYS_ADDR_T_64BIT
989
	select GPIOLIB
990 991 992 993 994 995
	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
996
	select IRQ_MIPS_CPU
997
	select ZONE_DMA32 if 64BIT
998 999
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1000
	select USE_OF
1001 1002
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1003 1004 1005 1006
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1007
endchoice
L
Linus Torvalds 已提交
1008

R
Ralf Baechle 已提交
1009
source "arch/mips/alchemy/Kconfig"
1010
source "arch/mips/ath25/Kconfig"
1011
source "arch/mips/ath79/Kconfig"
1012
source "arch/mips/bcm47xx/Kconfig"
1013
source "arch/mips/bcm63xx/Kconfig"
1014
source "arch/mips/bmips/Kconfig"
1015
source "arch/mips/generic/Kconfig"
1016
source "arch/mips/jazz/Kconfig"
1017
source "arch/mips/jz4740/Kconfig"
1018
source "arch/mips/lantiq/Kconfig"
1019
source "arch/mips/pic32/Kconfig"
1020
source "arch/mips/pistachio/Kconfig"
J
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1021
source "arch/mips/ralink/Kconfig"
1022
source "arch/mips/sgi-ip27/Kconfig"
1023
source "arch/mips/sibyte/Kconfig"
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1024
source "arch/mips/txx9/Kconfig"
1025
source "arch/mips/vr41xx/Kconfig"
1026
source "arch/mips/cavium-octeon/Kconfig"
1027
source "arch/mips/loongson2ef/Kconfig"
1028 1029
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1030
source "arch/mips/netlogic/Kconfig"
1031

1032 1033
endmenu

1034 1035 1036 1037
config GENERIC_HWEIGHT
	bool
	default y

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config GENERIC_CALIBRATE_DELAY
	bool
	default y

1042
config SCHED_OMIT_FRAME_POINTER
1043 1044 1045
	bool
	default y

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#
# Select some configuration options automatically based on user selections.
#
1049
config FW_ARC
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1050 1051
	bool

1052 1053 1054
config ARCH_MAY_HAVE_PC_FDC
	bool

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1055 1056 1057
config BOOT_RAW
	bool

1058 1059 1060
config CEVT_BCM1480
	bool

1061 1062 1063
config CEVT_DS1287
	bool

1064 1065 1066
config CEVT_GT641XX
	bool

1067 1068 1069
config CEVT_R4K
	bool

1070 1071 1072
config CEVT_SB1250
	bool

1073 1074 1075
config CEVT_TXX9
	bool

1076 1077 1078
config CSRC_BCM1480
	bool

1079 1080 1081
config CSRC_IOASIC
	bool

1082
config CSRC_R4K
1083
	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1084 1085
	bool

1086 1087 1088
config CSRC_SB1250
	bool

1089 1090 1091
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1092
config GPIO_TXX9
1093
	select GPIOLIB
1094 1095
	bool

1096
config FW_CFE
1097 1098
	bool

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1099 1100 1101
config ARCH_SUPPORTS_UPROBES
	bool

1102
config DMA_MAYBE_COHERENT
1103
	select ARCH_HAS_DMA_COHERENCE_H
1104 1105 1106
	select DMA_NONCOHERENT
	bool

1107 1108
config DMA_PERDEV_COHERENT
	bool
1109
	select ARCH_HAS_SETUP_DMA_OPS
1110
	select DMA_NONCOHERENT
1111

1112 1113
config DMA_NONCOHERENT
	bool
1114 1115 1116 1117 1118 1119 1120
	#
	# 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.
	#
1121
	select ARCH_HAS_DMA_WRITE_COMBINE
1122
	select ARCH_HAS_DMA_PREP_COHERENT
1123
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1124
	select ARCH_HAS_DMA_SET_UNCACHED
1125
	select DMA_NONCOHERENT_MMAP
1126
	select DMA_NONCOHERENT_CACHE_SYNC
1127
	select NEED_DMA_MAP_STATE
1128

1129
config SYS_HAS_EARLY_PRINTK
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1130 1131
	bool

1132
config SYS_SUPPORTS_HOTPLUG_CPU
1133 1134
	bool

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1135 1136 1137 1138 1139 1140
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1141 1142 1143
config SYNC_R4K
	bool

1144
config NO_IOPORT_MAP
1145 1146
	def_bool n

1147
config GENERIC_CSUM
1148
	def_bool CPU_NO_LOAD_STORE_LR
1149

1150 1151 1152
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1153
	select ISA_DMA_API
1154

1155 1156
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1157
	select GENERIC_ISA_DMA
1158

1159 1160 1161 1162 1163 1164 1165 1166 1167
config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

1168 1169 1170
config ISA_DMA_API
	bool

1171 1172 1173
config HOLES_IN_ZONE
	bool

1174 1175 1176
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1177 1178 1179
	  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.
1180

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1181 1182 1183 1184 1185 1186 1187 1188 1189
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


1190
#
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1191
# Endianness selection.  Sufficiently obscure so many users don't know what to
1192 1193 1194 1195
# 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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1196
	prompt "Endianness selection"
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1197 1198
	help
	  Some MIPS machines can be configured for either little or big endian
1199
	  byte order. These modes require different kernels and a different
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	  Linux distribution.  In general there is one preferred byteorder for a
1201
	  particular system but some systems are just as commonly used in the
1202
	  one or the other endianness.
1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213

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

1214 1215 1216
config EXPORT_UASM
	bool

1217 1218 1219
config SYS_SUPPORTS_APM_EMULATION
	bool

1220 1221 1222 1223 1224
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1225

1226 1227
config SYS_SUPPORTS_HUGETLBFS
	bool
1228
	depends on CPU_SUPPORTS_HUGEPAGES
1229 1230
	default y

1231 1232 1233
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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1234 1235 1236
config IRQ_CPU_RM7K
	bool

M
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1237 1238 1239 1240 1241 1242
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1243 1244 1245
config IRQ_TXX9
	bool

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1246 1247 1248
config IRQ_GT641XX
	bool

1249
config PCI_GT64XXX_PCI0
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1250 1251
	bool

1252 1253 1254
config PCI_XTALK_BRIDGE
	bool

M
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1255 1256 1257
config NO_EXCEPT_FILL
	bool

1258 1259 1260
config MIPS_SPRAM
	bool

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1261 1262 1263
config SWAP_IO_SPACE
	bool

T
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1264 1265 1266
config SGI_HAS_INDYDOG
	bool

1267 1268 1269
config SGI_HAS_HAL2
	bool

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1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284
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

1285
config FW_ARC32
1286 1287
	bool

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1288
config FW_SNIPROM
1289 1290
	bool

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1291 1292 1293
config BOOT_ELF32
	bool

1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305
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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config MIPS_L1_CACHE_SHIFT
	int
1308
	default "7" if MIPS_L1_CACHE_SHIFT_7
1309 1310 1311
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
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1312 1313
	default "5"

1314 1315 1316
config ARC_CMDLINE_ONLY
	bool

L
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1317 1318
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1319
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1320 1321 1322 1323 1324 1325 1326

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1327
config FW_ARC64
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1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

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1339
config CPU_LOONGSON64
1340
	bool "Loongson 64-bit CPU"
J
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1341
	depends on SYS_HAS_CPU_LOONGSON64
1342
	select ARCH_HAS_PHYS_TO_DMA
1343 1344
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1345 1346 1347
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1348
	select CPU_SUPPORTS_MSA
1349 1350
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1351 1352
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1353
	select MIPS_ASID_BITS_VARIABLE
1354
	select MIPS_PGD_C0_CONTEXT
1355
	select MIPS_L1_CACHE_SHIFT_6
1356
	select GPIOLIB
1357
	select SWIOTLB
1358
	select HAVE_KVM
1359
	help
1360 1361 1362 1363 1364 1365 1366 1367
		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"
1368
	default n
J
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1369
	depends on CPU_LOONGSON64
1370
	help
1371
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1372
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1373
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1374 1375 1376 1377 1378 1379
	  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
1380
	  new Loongson-3 machines only, please say 'Y' here.
1381

1382
config CPU_LOONGSON3_WORKAROUNDS
1383
	bool "Old Loongson-3 LLSC Workarounds"
1384
	default y if SMP
J
Jiaxun Yang 已提交
1385
	depends on CPU_LOONGSON64
1386
	help
1387
	  Loongson-3 processors have the llsc issues which require workarounds.
1388 1389
	  Without workarounds the system may hang unexpectedly.

1390
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1391 1392 1393 1394 1395 1396
	  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.

1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408
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.

1409 1410 1411
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1412
	select CPU_LOONGSON2EF
1413 1414 1415 1416
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1417
	  It has an internal FPGA northbridge, which is compatible to
1418 1419 1420 1421 1422
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1423
	select CPU_LOONGSON2EF
1424
	select GPIOLIB
1425 1426 1427 1428 1429 1430 1431 1432
	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.

1433 1434 1435
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1436
	select CPU_LOONGSON32
1437
	select LEDS_GPIO_REGISTER
1438 1439
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1440 1441
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1442

Y
Yang Ling 已提交
1443 1444 1445
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1446
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1447 1448 1449
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1450 1451
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1452

1453 1454
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1455
	depends on SYS_HAS_CPU_MIPS32_R1
1456
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1457
	select CPU_SUPPORTS_32BIT_KERNEL
1458
	select CPU_SUPPORTS_HIGHMEM
R
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1459
	help
1460
	  Choose this option to build a kernel for release 1 or later of the
R
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1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471
	  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"
1472
	depends on SYS_HAS_CPU_MIPS32_R2
R
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1473
	select CPU_HAS_PREFETCH
R
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1474
	select CPU_SUPPORTS_32BIT_KERNEL
1475
	select CPU_SUPPORTS_HIGHMEM
P
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1476
	select CPU_SUPPORTS_MSA
1477
	select HAVE_KVM
1478
	help
1479
	  Choose this option to build a kernel for release 2 or later of the
1480 1481 1482 1483 1484
	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
	  MIPS processor are based on a MIPS32 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.

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1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499
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.

1500
config CPU_MIPS32_R6
1501
	bool "MIPS32 Release 6"
1502 1503
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1504
	select CPU_NO_LOAD_STORE_LR
1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515
	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.

1516 1517
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1518
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1519
	select CPU_HAS_PREFETCH
1520 1521
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1522
	select CPU_SUPPORTS_HIGHMEM
1523
	select CPU_SUPPORTS_HUGEPAGES
1524 1525 1526 1527 1528 1529
	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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1530 1531 1532 1533 1534 1535 1536
	  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"
1537
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1538
	select CPU_HAS_PREFETCH
R
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1539 1540
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1541
	select CPU_SUPPORTS_HIGHMEM
1542
	select CPU_SUPPORTS_HUGEPAGES
P
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1543
	select CPU_SUPPORTS_MSA
1544
	select HAVE_KVM
R
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1545 1546 1547 1548 1549 1550
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
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1551

S
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1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568
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.

1569
config CPU_MIPS64_R6
1570
	bool "MIPS64 Release 6"
1571 1572
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1573
	select CPU_NO_LOAD_STORE_LR
1574 1575 1576
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1577
	select CPU_SUPPORTS_HUGEPAGES
1578
	select CPU_SUPPORTS_MSA
1579
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1580
	select HAVE_KVM
1581 1582 1583 1584 1585 1586
	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.

1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607
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_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"
1610
	depends on SYS_HAS_CPU_R3000
1611
	select CPU_HAS_WB
1612
	select CPU_R3K_TLB
1613
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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1615 1616 1617 1618 1619 1620 1621 1622 1623 1624
	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"
1625
	depends on SYS_HAS_CPU_TX39XX
1626
	select CPU_SUPPORTS_32BIT_KERNEL
1627
	select CPU_R3K_TLB
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1628 1629 1630

config CPU_VR41XX
	bool "R41xx"
1631
	depends on SYS_HAS_CPU_VR41XX
1632 1633
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1634
	help
1635
	  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"
1642
	depends on SYS_HAS_CPU_R4X00
1643 1644
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1645
	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"
1652
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1654 1655
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1656
	select CPU_SUPPORTS_HUGEPAGES
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1657 1658 1659

config CPU_R5000
	bool "R5000"
1660
	depends on SYS_HAS_CPU_R5000
1661 1662
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1663
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1667 1668 1669 1670 1671
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1672
	select CPU_SUPPORTS_HUGEPAGES
1673 1674 1675 1676
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1679
	depends on SYS_HAS_CPU_NEVADA
1680 1681
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1682
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1688
	depends on SYS_HAS_CPU_R10000
1689
	select CPU_HAS_PREFETCH
1690 1691
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1693
	select CPU_SUPPORTS_HUGEPAGES
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1694 1695 1696 1697 1698
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1699
	depends on SYS_HAS_CPU_RM7000
1700
	select CPU_HAS_PREFETCH
1701 1702
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1703
	select CPU_SUPPORTS_HIGHMEM
1704
	select CPU_SUPPORTS_HUGEPAGES
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1705 1706 1707

config CPU_SB1
	bool "SB1"
1708
	depends on SYS_HAS_CPU_SB1
1709 1710
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1712
	select CPU_SUPPORTS_HUGEPAGES
1713
	select WEAK_ORDERING
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1714

1715 1716
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1717
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1718 1719 1720 1721
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1722
	select CPU_SUPPORTS_HUGEPAGES
1723 1724
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1725
	select MIPS_L1_CACHE_SHIFT_7
1726
	select HAVE_KVM
1727 1728 1729 1730 1731 1732
	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.

1733 1734 1735 1736
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1737
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1738 1739 1740 1741 1742
	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
1743
	select IRQ_MIPS_CPU
1744 1745
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1746
	select CPU_SUPPORTS_HIGHMEM
1747
	select CPU_HAS_PREFETCH
1748 1749
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1750
	help
1751
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1752

1753 1754 1755 1756 1757 1758
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
1759
	select CPU_SUPPORTS_HUGEPAGES
1760 1761 1762 1763
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1764 1765 1766 1767 1768 1769 1770 1771 1772 1773

config CPU_XLP
	bool "Netlogic XLP SoC"
	depends on SYS_HAS_CPU_XLP
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select CPU_HAS_PREFETCH
1774
	select CPU_MIPSR2
1775
	select CPU_SUPPORTS_HUGEPAGES
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1776
	select MIPS_ASID_BITS_VARIABLE
1777 1778
	help
	  Netlogic Microsystems XLP processors.
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1779 1780
endchoice

1781 1782 1783
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1784 1785
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
		   CPU_P5600
1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from the 3.5 release such as
	  support for Enhanced Virtual Addressing (EVA).

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

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config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
1805
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
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	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from release 5 such as
	  support for Extended Physical Addressing (XPA).

config CPU_MIPS32_R5_XPA
	bool "Extended Physical Addressing (XPA)"
	depends on CPU_MIPS32_R5_FEATURES
	depends on !EVA
	depends on !PAGE_SIZE_4KB
	depends on SYS_SUPPORTS_HIGHMEM
	select XPA
	select HIGHMEM
1819
	select PHYS_ADDR_T_64BIT
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	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  If unsure, say 'N' here.

1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855
if CPU_LOONGSON2F
config CPU_NOP_WORKAROUNDS
	bool

config CPU_JUMP_WORKAROUNDS
	bool

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

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

	  If unsure, please say Y.
endif # CPU_LOONGSON2F

1856 1857 1858 1859
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1860
	select HAVE_KERNEL_LZ4
1861
	select HAVE_KERNEL_LZMA
1862
	select HAVE_KERNEL_LZO
1863
	select HAVE_KERNEL_XZ
1864
	select HAVE_KERNEL_ZSTD
1865 1866 1867 1868 1869

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1870 1871 1872 1873
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1875 1876 1877 1878
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1879
	select CPU_SUPPORTS_HUGEPAGES
1880
	select ARCH_HAS_PHYS_TO_DMA
1881

1882
config CPU_LOONGSON32
1883 1884
	bool
	select CPU_MIPS32
1885
	select CPU_MIPSR2
1886 1887 1888
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1889
	select CPU_SUPPORTS_CPUFREQ
1890

1891
config CPU_BMIPS32_3300
1892
	select SMP_UP if SMP
1893
	bool
1894 1895 1896 1897 1898 1899 1900 1901

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1902
	select MIPS_L1_CACHE_SHIFT_6
1903 1904
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1905
	select CPU_HAS_RIXI
1906 1907 1908 1909

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1910
	select MIPS_L1_CACHE_SHIFT_7
1911 1912
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1913
	select CPU_HAS_RIXI
1914

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config SYS_HAS_CPU_LOONGSON64
1916 1917
	bool
	select CPU_SUPPORTS_CPUFREQ
1918
	select CPU_HAS_RIXI
1919

1920
config SYS_HAS_CPU_LOONGSON2E
1921 1922
	bool

1923 1924
config SYS_HAS_CPU_LOONGSON2F
	bool
1925 1926
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1927

1928 1929 1930
config SYS_HAS_CPU_LOONGSON1B
	bool

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1931 1932 1933
config SYS_HAS_CPU_LOONGSON1C
	bool

1934 1935 1936 1937 1938 1939
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1940 1941 1942
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1943 1944
config SYS_HAS_CPU_MIPS32_R5
	bool
1945
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1946

1947 1948
config SYS_HAS_CPU_MIPS32_R6
	bool
1949
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1950

1951 1952 1953 1954 1955 1956
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1957 1958
config SYS_HAS_CPU_MIPS64_R6
	bool
1959
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1960

1961 1962 1963 1964
config SYS_HAS_CPU_P5600
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982
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

1983 1984 1985
config SYS_HAS_CPU_R5500
	bool

1986 1987 1988 1989 1990
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
1991
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1992 1993 1994 1995 1996 1997 1998

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

1999 2000 2001
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2002
config SYS_HAS_CPU_BMIPS
2003 2004
	bool

2005
config SYS_HAS_CPU_BMIPS32_3300
2006
	bool
2007
	select SYS_HAS_CPU_BMIPS
2008 2009 2010

config SYS_HAS_CPU_BMIPS4350
	bool
2011
	select SYS_HAS_CPU_BMIPS
2012 2013 2014

config SYS_HAS_CPU_BMIPS4380
	bool
2015
	select SYS_HAS_CPU_BMIPS
2016 2017 2018

config SYS_HAS_CPU_BMIPS5000
	bool
2019
	select SYS_HAS_CPU_BMIPS
2020
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2021

2022 2023 2024
config SYS_HAS_CPU_XLR
	bool

2025 2026 2027
config SYS_HAS_CPU_XLP
	bool

2028 2029 2030 2031
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2032 2033
config WEAK_ORDERING
	bool
2034 2035 2036 2037 2038 2039 2040

#
# 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
2041 2042 2043
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2045 2046 2047
#
config CPU_MIPS32
	bool
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2048
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2049
		     CPU_MIPS32_R6 || CPU_P5600
2050 2051 2052

config CPU_MIPS64
	bool
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2053 2054
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
		     CPU_MIPS64_R6
2055 2056

#
2057
# These indicate the revision of the architecture
2058 2059 2060 2061 2062 2063 2064
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2065
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2066
	select CPU_HAS_RIXI
2067
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2068
	select MIPS_SPRAM
2069

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2070 2071
config CPU_MIPSR5
	bool
2072
	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
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2073 2074 2075 2076
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

2077 2078 2079
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2080
	select CPU_HAS_RIXI
2081
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2082
	select HAVE_ARCH_BITREVERSE
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2083
	select MIPS_ASID_BITS_VARIABLE
2084
	select MIPS_CRC_SUPPORT
2085
	select MIPS_SPRAM
2086

2087 2088 2089 2090
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
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2091
	default 5 if CPU_MIPSR5
2092 2093 2094 2095 2096 2097
	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.

2098 2099 2100
config EVA
	bool

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2101 2102 2103
config XPA
	bool

2104 2105 2106 2107 2108 2109 2110 2111
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2112 2113 2114 2115
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2116 2117
config CPU_SUPPORTS_HUGEPAGES
	bool
2118
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2119 2120
config MIPS_PGD_C0_CONTEXT
	bool
2121
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2122

2123 2124 2125 2126
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2127 2128
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2129

2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145
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.
2146

2147 2148 2149 2150 2151 2152 2153 2154
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

2155 2156
config KVM_GUEST
	bool "KVM Guest Kernel"
2157
	depends on CPU_MIPS32_R2
2158
	depends on BROKEN_ON_SMP
2159
	help
2160 2161
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2162

2163 2164
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2165
	depends on KVM_GUEST
2166
	default 100
2167
	help
2168 2169 2170
	  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.
2171

2172 2173 2174 2175
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2176 2177 2178 2179 2180 2181 2182
	  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.

2183 2184
	  If unsure, say N.

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2185 2186 2187 2188 2189 2190
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
2193 2194 2195 2196
	  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"
2200
	depends on CPU_CAVIUM_OCTEON
2201
	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
2205 2206
	  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"
2210
	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
2214 2215
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2217 2218 2219
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2220
	depends on !MIPS_VA_BITS_48
2221 2222 2223 2224 2225 2226
	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
2234
	  writing this option is still high experimental.
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endchoice

2238 2239
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2240 2241 2242 2243 2244 2245
	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
2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261
	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

2269 2270 2271 2272 2273 2274 2275
#
# 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
2293
	bool
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2295 2296
config CPU_GENERIC_DUMP_TLB
	bool
2297
	default y if !(CPU_R3000 || CPU_TX39XX)
2298

2299
config MIPS_FP_SUPPORT
2300 2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312
	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.
2313

2314 2315
config CPU_R2300_FPU
	bool
2316
	depends on MIPS_FP_SUPPORT
2317 2318
	default y if CPU_R3000 || CPU_TX39XX

2319 2320 2321
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2324
	depends on MIPS_FP_SUPPORT
2325
	default y if !CPU_R2300_FPU
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2327 2328
config CPU_R4K_CACHE_TLB
	bool
2329
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2330

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config MIPS_MT_SMP
2332
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2333
	default y
2334
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2335
	select CPU_MIPSR2_IRQ_VI
2336
	select CPU_MIPSR2_IRQ_EI
2337
	select SYNC_R4K
2338
	select MIPS_MT
2339
	select SMP
2340
	select SMP_UP
2341 2342
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2343
	select MIPS_PERF_SHARED_TC_COUNTERS
2344
	help
2345 2346 2347 2348 2349
	  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>.
2350

2351 2352 2353
config MIPS_MT
	bool

2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365
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

2366 2367 2368
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
2373

2374 2375
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2376
	depends on CPU_MIPSR6
2377
	depends on MIPS_FP_SUPPORT
2378 2379 2380 2381
	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
2382
	  default. You can enable it using the 'mipsr2emu' kernel option.
2383 2384 2385
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2386 2387 2388 2389 2390 2391 2392
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2393 2394
config MIPS_VPE_LOADER
	bool "VPE loader support."
2395
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2396 2397 2398 2399 2400 2401
	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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2403 2404 2405 2406 2407
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2408 2409 2410 2411 2412
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2413 2414 2415 2416 2417 2418 2419 2420 2421 2422 2423
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
2424 2425
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2426

2427 2428 2429 2430 2431
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2432 2433 2434 2435 2436
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2437
config MIPS_CMP
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2438
	bool "MIPS CMP framework support (DEPRECATED)"
2439
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2440
	select SMP
2441
	select SYNC_R4K
2442
	select SYS_SUPPORTS_SMP
2443 2444 2445
	select WEAK_ORDERING
	default n
	help
2446 2447 2448
	  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.
2449

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2450 2451 2452
	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
	  instead of this.

2453 2454
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2455
	depends on SYS_SUPPORTS_MIPS_CPS
2456
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2458 2459
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2461
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2462 2463 2464 2465 2466 2467 2468 2469 2470
	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.

2471
config MIPS_CPS_PM
2472
	depends on MIPS_CPS
2473 2474
	bool

2475 2476
config MIPS_CM
	bool
2477
	select MIPS_CPC
2478

2479 2480
config MIPS_CPC
	bool
2481

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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

2492 2493 2494 2495 2496 2497 2498 2499
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

2500 2501
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2502
	bool "SmartMIPS"
2503 2504 2505 2506 2507 2508 2509 2510 2511
	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.

2512
config CPU_MICROMIPS
2513
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2514
	bool "microMIPS"
2515 2516 2517 2518
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2519 2520
endchoice

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config CPU_HAS_MSA
2522
	bool "Support for the MIPS SIMD Architecture"
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2523
	depends on CPU_SUPPORTS_MSA
2524
	depends on MIPS_FP_SUPPORT
2525
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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2526 2527 2528
	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2529 2530 2531 2532 2533
	  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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2534 2535 2536

	  If unsure, say Y.

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config CPU_HAS_WB
2538
	bool
2539

2540 2541 2542
config XKS01
	bool

2543 2544 2545 2546 2547 2548 2549
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2550 2551 2552
config CPU_HAS_RIXI
	bool

2553
config CPU_NO_LOAD_STORE_LR
2554 2555
	bool
	help
2556
	  CPU lacks support for unaligned load and store instructions:
2557
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2558 2559
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2560

2561 2562 2563
#
# Vectored interrupt mode is an R2 feature
#
2564
config CPU_MIPSR2_IRQ_VI
2565
	bool
2566

2567 2568 2569
#
# Extended interrupt mode is an R2 feature
#
2570
config CPU_MIPSR2_IRQ_EI
2571
	bool
2572

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2591 2592 2593 2594
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2595 2596 2597 2598 2599 2600 2601
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
2603 2604 2605
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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2606 2607 2608
config MIPS_ASID_BITS_VARIABLE
	bool

2609 2610 2611
config MIPS_CRC_SUPPORT
	bool

2612 2613 2614 2615 2616 2617 2618
# R4600 erratum.  Due to the lack of errata information the exact
# technical details aren't known.  I've experimentally found that disabling
# interrupts during indexed I-cache flushes seems to be sufficient to deal
# with the issue.
config WAR_R4600_V1_INDEX_ICACHEOP
	bool

2619 2620 2621 2622 2623 2624 2625 2626 2627 2628 2629 2630 2631 2632 2633 2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645
# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
#
#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
#      executed if there is no other dcache activity. If the dcache is
#      accessed for another instruction immeidately preceding when these
#      cache instructions are executing, it is possible that the dcache
#      tag match outputs used by these cache instructions will be
#      incorrect. These cache instructions should be preceded by at least
#      four instructions that are not any kind of load or store
#      instruction.
#
#      This is not allowed:    lw
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
#
#      This is allowed:        lw
#                              nop
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
config WAR_R4600_V1_HIT_CACHEOP
	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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2658 2659 2660
#
config HIGHMEM
	bool "High Memory Support"
2661
	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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2668

2669 2670 2671
config SYS_SUPPORTS_SMARTMIPS
	bool

2672 2673 2674
config SYS_SUPPORTS_MICROMIPS
	bool

2675 2676 2677 2678 2679 2680 2681
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

2685 2686
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2688

2689 2690
config ARCH_SPARSEMEM_ENABLE
	bool
2691
	select SPARSEMEM_STATIC if !SGI_IP27
2692

2693 2694 2695 2696 2697 2698 2699
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
2700
	  leave it disabled; on single node systems leave this option
2701 2702 2703 2704 2705
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2706 2707 2708 2709 2710 2711 2712 2713
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

2714 2715
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 || \
2720
		   CPU_P5600 || CAVIUM_OCTEON_SOC
2721 2722 2723 2724 2725 2726
	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

2727 2728 2729 2730 2731
config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00100000"
2732
	help
2733 2734 2735 2736 2737 2738 2739 2740 2741 2742
	  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.

2743 2744 2745
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
2746
	help
2747 2748 2749 2750
	  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.
2751

2752
	  Entropy is generated using any coprocessor 0 registers available.
2753

2754
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2755

2756
	  If unsure, say N.
2757 2758 2759 2760 2761 2762 2763

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"
2764
	help
2765 2766 2767 2768 2769 2770 2771 2772
	  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

2778 2779
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)
2781 2782 2783 2784 2785
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796
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"
2799 2800
	depends on SYS_SUPPORTS_SMP
	help
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2801
	  This enables support for systems with more than one CPU. If you have
2802 2803
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2804

2805
	  If you say N here, the kernel will run on uni- and multiprocessor
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	  machines, but will use only one CPU of a multiprocessor machine. If
	  you say Y here, the kernel will run on many, but not all,
2808
	  uniprocessor machines. On a uniprocessor machine, the kernel
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2809 2810 2811 2812 2813
	  will run faster if you say N here.

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

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	  See also the SMP-HOWTO available at
2815
	  <https://www.tldp.org/docs.html#howto>.
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2816 2817 2818

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

2819 2820 2821 2822 2823 2824 2825 2826 2827 2828
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.

2829 2830 2831
config SMP_UP
	bool

2832 2833 2834
config SYS_SUPPORTS_MIPS_CMP
	bool

2835 2836 2837
config SYS_SUPPORTS_MIPS_CPS
	bool

2838 2839 2840
config SYS_SUPPORTS_SMP
	bool

2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855
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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2857 2858
	int "Maximum number of CPUs (2-256)"
	range 2 256
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2859
	depends on SMP
2860 2861 2862 2863 2864
	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
2869 2870
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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2871 2872

	  This is purely to save memory - each supported CPU adds
2873 2874 2875
	  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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2876

2877 2878
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2879 2880 2881 2882 2883 2884 2885 2886 2887

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
2888

2889 2890 2891 2892 2893 2894 2895 2896
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2897
	  Allows the configuration of the timer frequency.
2898

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2899 2900 2901
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2902
	config HZ_48
2903
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 2917 2918 2919 2920 2921 2922 2923 2924

	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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2925 2926 2927
config SYS_SUPPORTS_24HZ
	bool

2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947 2948 2949 2950
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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2951 2952 2953 2954 2955 2956 2957
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2958 2959 2960 2961
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2962
	default 24 if HZ_24
2963 2964 2965 2966 2967 2968 2969 2970
	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
2971 2972 2973
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2974
config KEXEC
2975
	bool "Kexec system call"
2976
	select KEXEC_CORE
2977 2978 2979
	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
2980
	  but it is independent of the system firmware.   And like a reboot
2981 2982
	  you can start any kernel with it, not just Linux.

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Matt LaPlante 已提交
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	  The name comes from the similarity to the exec system call.
2984 2985 2986

	  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
2987 2988 2989
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2990

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2991
config CRASH_DUMP
2992 2993
	bool "Kernel crash dumps"
	help
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2994 2995 2996 2997 2998 2999 3000 3001 3002
	  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
3003
	hex "Physical address where the kernel is loaded"
3004
	default "0xffffffff84000000"
3005 3006
	depends on CRASH_DUMP
	help
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3007 3008 3009 3010 3011 3012
	  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).

3013 3014
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
3015
	depends on PROC_FS
3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 3026 3027 3028 3029
	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.

3030
config MIPS_O32_FP64_SUPPORT
3031
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3032 3033 3034 3035 3036 3037 3038 3039 3040 3041 3042 3043
	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.

3044 3045 3046 3047 3048 3049 3050 3051
	  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.
3052

3053
config USE_OF
3054
	bool
3055
	select OF
3056
	select OF_EARLY_FLATTREE
3057
	select IRQ_DOMAIN
3058

3059 3060 3061
config UHI_BOOT
	bool

3062 3063 3064
config BUILTIN_DTB
	bool

3065
choice
3066
	prompt "Kernel appended dtb support" if USE_OF
3067 3068 3069 3070 3071 3072 3073
	default MIPS_NO_APPENDED_DTB

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

3074 3075 3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087
	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.

3088
	config MIPS_RAW_APPENDED_DTB
3089
		bool "vmlinux.bin or vmlinuz.bin"
3090 3091
		help
		  With this option, the boot code will look for a device tree binary
3092
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3093 3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105
		  (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

3106 3107
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
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3108
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
J
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3109
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
J
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3110
					 !CAVIUM_OCTEON_SOC
3111 3112 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122
	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"
3123 3124 3125 3126

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3127 3128
endchoice

3129 3130
endmenu

3131 3132 3133 3134 3135 3136 3137 3138
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3139 3140
config PGTABLE_LEVELS
	int
3141
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3142 3143 3144
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3145 3146 3147
config MIPS_AUTO_PFN_OFFSET
	bool

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Linus Torvalds 已提交
3148 3149
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3150
config PCI_DRIVERS_GENERIC
3151
	select PCI_DOMAINS_GENERIC if PCI
3152 3153 3154 3155 3156
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3157
	select PCI_DOMAINS if PCI
L
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3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170

#
# 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
3171 3172 3173 3174 3175 3176 3177 3178
	  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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3179 3180 3181 3182 3183

config MMU
	bool
	default y

3184 3185 3186 3187 3188 3189 3190 3191 3192
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
3193
	default 8
3194 3195

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3196
	default 15
3197

3198 3199
config I8253
	bool
3200
	select CLKSRC_I8253
3201
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3202
	select MIPS_EXTERNAL_TIMER
3203

3204 3205 3206
config ZONE_DMA
	bool

3207 3208 3209
config ZONE_DMA32
	bool

L
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3210 3211 3212 3213 3214 3215
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3216
	bool
L
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3217 3218 3219 3220

config COMPAT
	bool

3221 3222 3223
config SYSVIPC_COMPAT
	bool

L
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3224 3225
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3226 3227 3228 3229 3230
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3231 3232 3233 3234 3235 3236 3237 3238 3239
	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"
3240
	depends on 64BIT
3241
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3242 3243 3244
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3245 3246 3247 3248 3249 3250 3251 3252 3253 3254 3255
	help
	  Select this option if you want to run n32 binaries.  These are
	  64-bit binaries using 32-bit quantities for addressing and certain
	  data that would normally be 64-bit.  They are used in special
	  cases.

	  If unsure, say N.

config BINFMT_ELF32
	bool
	default y if MIPS32_O32 || MIPS32_N32
R
Ralf Baechle 已提交
3256
	select ELFCORE
L
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3257

3258 3259
menu "Power management options"

W
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3260 3261
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3262
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3263

J
Johannes Berg 已提交
3264 3265
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3266
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3267

3268
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3269

L
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3270 3271
endmenu

3272 3273 3274 3275
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
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3276 3277

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3278 3279
source "drivers/cpufreq/Kconfig"
endif
W
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3280

P
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3281 3282 3283 3284
source "drivers/cpuidle/Kconfig"

endmenu

3285 3286
source "drivers/firmware/Kconfig"

3287
source "arch/mips/kvm/Kconfig"
3288 3289

source "arch/mips/vdso/Kconfig"