Kconfig 80.9 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_CLOCKSOURCE_DATA
	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_HAS_FORTIFY_SOURCE
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
	select BUILDTIME_EXTABLE_SORT
	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_EBPF_JIT if (!CPU_MICROMIPS)
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	select HAVE_CONTEXT_TRACKING
	select HAVE_COPY_THREAD_TLS
	select HAVE_C_RECORDMCOUNT
	select HAVE_DEBUG_KMEMLEAK
	select HAVE_DEBUG_STACKOVERFLOW
	select HAVE_DMA_CONTIGUOUS
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	select HAVE_DYNAMIC_FTRACE
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MEMBLOCK_NODE_MAP
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select HAVE_GENERIC_VDSO
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select MODULES_USE_ELF_REL if MODULES
	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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menu "Machine selection"

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

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

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

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

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

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

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

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARC_MEMORY
	select ARC_PROMLIB
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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	select LIBFDT
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config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_MIPS16
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	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_VPE_LOADER
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	select SYS_HAS_EARLY_PRINTK
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	select GPIOLIB
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	select SWAP_IO_SPACE
	select BOOT_RAW
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	select CLKDEV_LOOKUP
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	select USE_OF
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	select PINCTRL
	select PINCTRL_LANTIQ
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	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
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config LASAT
	bool "LASAT Networks platforms"
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	select CEVT_R4K
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	select CRC32
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	select CSRC_R4K
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	select DMA_NONCOHERENT
	select SYS_HAS_EARLY_PRINTK
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	select HAVE_PCI
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	select IRQ_MIPS_CPU
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	select PCI_GT64XXX_PCI0
	select MIPS_NILE4
	select R5000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL if BROKEN
	select SYS_SUPPORTS_LITTLE_ENDIAN

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config MACH_LOONGSON32
	bool "Loongson-1 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
	bool "Loongson-2/3 GSx64 family of machines"
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	select ARCH_SPARSEMEM_ENABLE
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select BOOT_ELF32
	select BOARD_SCACHE
	select CSRC_R4K
	select CEVT_R4K
	select CPU_HAS_WB
	select FORCE_PCI
	select ISA
	select I8259
	select IRQ_MIPS_CPU
	select NR_CPUS_DEFAULT_4
	select USE_GENERIC_EARLY_PRINTK_8250
	select SYS_HAS_CPU_LOONGSON64
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT
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	select LOONGSON_MC146818
	select ZONE_DMA32
	select NUMA
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	help
	  This enables the support of Loongson-2/3 family of processors with
	  GSx64 microarchitecture.
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config MACH_PISTACHIO
	bool "IMG Pistachio SoC based boards"
	select BOOT_ELF32
	select BOOT_RAW
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CSRC_R4K
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	select DMA_NONCOHERENT
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	select GPIOLIB
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	select IRQ_MIPS_CPU
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	select LIBFDT
	select MFD_SYSCON
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select PINCTRL
	select REGULATOR
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
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	select SYS_SUPPORTS_RELOCATABLE
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	select SYS_SUPPORTS_ZBOOT
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	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
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	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

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

583 584 585 586 587 588 589 590
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.

591 592 593
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
594
	select HAVE_PCI
595 596
	help
	  This enables support for the NEC Electronics Mark-eins boards.
597

598
config MACH_VR41XX
599
	bool "NEC VR4100 series based machines"
600
	select CEVT_R4K
601
	select CSRC_R4K
602
	select SYS_HAS_CPU_VR41XX
603
	select SYS_SUPPORTS_MIPS16
604
	select GPIOLIB
605

606 607 608 609
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
610
	  Support for NXP Semiconductors STB220 Development Board.
611 612 613 614 615 616

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
617
	  Support for NXP Semiconductors STB225 Development Board.
618

M
Marc St-Jean 已提交
619 620
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
621 622
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
623 624 625 626 627 628 629 630
	select DMA_NONCOHERENT
	select SWAP_IO_SPACE
	select NO_EXCEPT_FILL
	select BOOT_RAW
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
631
	select SYS_SUPPORTS_MIPS16
632
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
633 634
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
635 636
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
637 638 639 640 641 642
	help
	  This adds support for the PMC-Sierra family of Multi-Service
	  Processor System-On-A-Chips.  These parts include a number
	  of integrated peripherals, interfaces and DSPs in addition to
	  a variety of MIPS cores.

J
John Crispin 已提交
643 644 645 646 647 648
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
649
	select IRQ_MIPS_CPU
J
John Crispin 已提交
650 651 652 653 654
	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
655
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
656 657
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
658 659
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
660

L
Linus Torvalds 已提交
661
config SGI_IP22
662
	bool "SGI IP22 (Indy/Indigo2)"
663
	select ARC_MEMORY
664
	select ARC_PROMLIB
665 666
	select FW_ARC
	select FW_ARC32
667
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
668
	select BOOT_ELF32
669
	select CEVT_R4K
670
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
671
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
672
	select DMA_NONCOHERENT
673
	select HAVE_EISA
674
	select I8253
675
	select I8259
L
Linus Torvalds 已提交
676
	select IP22_CPU_SCACHE
677
	select IRQ_MIPS_CPU
678
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
679 680
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
681
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
682 683 684
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
685
	select SWAP_IO_SPACE
686 687
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
688
	select SYS_HAS_EARLY_PRINTK
689 690
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
691
	select SYS_SUPPORTS_BIG_ENDIAN
692
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
693 694 695 696 697 698
	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
699
	bool "SGI IP27 (Origin200/2000)"
700
	select ARCH_HAS_PHYS_TO_DMA
701
	select ARCH_SPARSEMEM_ENABLE
702 703
	select FW_ARC
	select FW_ARC64
704
	select ARC_CMDLINE_ONLY
705
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
706
	select DEFAULT_SGI_PARTITION
707
	select SYS_HAS_EARLY_PRINTK
708
	select HAVE_PCI
709
	select IRQ_MIPS_CPU
710
	select IRQ_DOMAIN_HIERARCHY
711
	select NR_CPUS_DEFAULT_64
712 713
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
714
	select SYS_HAS_CPU_R10000
715
	select SYS_SUPPORTS_64BIT_KERNEL
716
	select SYS_SUPPORTS_BIG_ENDIAN
717
	select SYS_SUPPORTS_NUMA
718
	select SYS_SUPPORTS_SMP
719
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
720 721 722 723 724
	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
725
config SGI_IP28
726
	bool "SGI IP28 (Indigo2 R10k)"
727
	select ARC_MEMORY
728
	select ARC_PROMLIB
729 730
	select FW_ARC
	select FW_ARC64
731
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
732 733 734 735 736 737
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
738
	select IRQ_MIPS_CPU
739
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
740 741 742 743
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
744
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
745 746 747 748 749
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
750
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
751 752
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
753
	select MIPS_L1_CACHE_SHIFT_7
754 755 756
	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
757

L
Linus Torvalds 已提交
758
config SGI_IP32
759
	bool "SGI IP32 (O2)"
760 761
	select ARC_MEMORY
	select ARC_PROMLIB
762
	select ARCH_HAS_PHYS_TO_DMA
763 764
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
765
	select BOOT_ELF32
766
	select CEVT_R4K
767
	select CSRC_R4K
L
Linus Torvalds 已提交
768
	select DMA_NONCOHERENT
769
	select HAVE_PCI
770
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
771 772
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
773 774 775
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
776
	select SYS_HAS_CPU_NEVADA
777
	select SYS_SUPPORTS_64BIT_KERNEL
778 779
	select SYS_SUPPORTS_BIG_ENDIAN
	help
780
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
781

782 783
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
784
	select BOOT_ELF32
785
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
786
	select SWAP_IO_SPACE
787
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
788 789 790
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

791 792
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
793
	select BOOT_ELF32
794
	select SIBYTE_BCM1120
795
	select SWAP_IO_SPACE
796
	select SYS_HAS_CPU_SB1
797
	select SYS_SUPPORTS_BIG_ENDIAN
798
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
799

800 801
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
802
	select BOOT_ELF32
803
	select SIBYTE_BCM1125
804
	select SWAP_IO_SPACE
805
	select SYS_HAS_CPU_SB1
806
	select SYS_SUPPORTS_BIG_ENDIAN
807
	select SYS_SUPPORTS_HIGHMEM
808
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
809

810
config SIBYTE_RHONE
811
	bool "Sibyte BCM91125E-Rhone"
812 813 814
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
815
	select SYS_HAS_CPU_SB1
816 817
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
818

819 820
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
821
	select BOOT_ELF32
822
	select HAVE_PATA_PLATFORM
823
	select SIBYTE_SB1250
824
	select SWAP_IO_SPACE
825
	select SYS_HAS_CPU_SB1
826
	select SYS_SUPPORTS_BIG_ENDIAN
827
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
828
	select SYS_SUPPORTS_LITTLE_ENDIAN
829
	select ZONE_DMA32 if 64BIT
830
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
831

832 833
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
834
	select BOOT_ELF32
835
	select HAVE_PATA_PLATFORM
836 837
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
838
	select SYS_HAS_CPU_SB1
839 840 841
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
842
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
843

844 845
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
846 847 848
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
849
	select SYS_HAS_CPU_SB1
850 851
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
852
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
853

854 855
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
856
	select BOOT_ELF32
857 858
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
859
	select SWAP_IO_SPACE
860
	select SYS_HAS_CPU_SB1
861
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
862
	select SYS_SUPPORTS_HIGHMEM
863
	select SYS_SUPPORTS_LITTLE_ENDIAN
864
	select ZONE_DMA32 if 64BIT
865
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
866

867 868
config SNI_RM
	bool "SNI RM200/300/400"
869 870
	select ARC_MEMORY
	select ARC_PROMLIB
871 872
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
873
	select FW_SNIPROM if CPU_BIG_ENDIAN
874
	select ARCH_MAY_HAVE_PC_FDC
875
	select ARCH_MIGHT_HAVE_PC_PARPORT
876
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
877
	select BOOT_ELF32
878
	select CEVT_R4K
879
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
880
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
881 882
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
883
	select HAVE_EISA
884
	select HAVE_PCSPKR_PLATFORM
885
	select HAVE_PCI
886
	select IRQ_MIPS_CPU
887
	select I8253
L
Linus Torvalds 已提交
888 889
	select I8259
	select ISA
890
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
891
	select SYS_HAS_CPU_R4X00
892
	select SYS_HAS_CPU_R5000
893
	select SYS_HAS_CPU_R10000
894
	select R5000_CPU_SCACHE
895
	select SYS_HAS_EARLY_PRINTK
896
	select SYS_SUPPORTS_32BIT_KERNEL
897
	select SYS_SUPPORTS_64BIT_KERNEL
898
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
899
	select SYS_SUPPORTS_HIGHMEM
900
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
901
	help
902 903
	  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
904 905 906
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

907 908
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
909

910 911
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
912

913 914 915 916 917
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
918
	select HAVE_PCI
919
	select IRQ_MIPS_CPU
920 921 922 923 924
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
925
	select GPIOLIB
926
	select MIPS_L1_CACHE_SHIFT_4
927 928 929 930
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

931 932
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
933
	select CEVT_R4K
934
	select ARCH_HAS_PHYS_TO_DMA
935
	select HAVE_RAPIDIO
936
	select PHYS_ADDR_T_64BIT
937 938
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
939
	select EDAC_SUPPORT
940
	select EDAC_ATOMIC_SCRUB
941 942
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
943
	select SYS_HAS_EARLY_PRINTK
944
	select SYS_HAS_CPU_CAVIUM_OCTEON
945
	select HAVE_PCI
D
David Daney 已提交
946
	select ZONE_DMA32
947
	select HOLES_IN_ZONE
948
	select GPIOLIB
949 950 951 952
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
953 954
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
955
	select BUILTIN_DTB
956
	select MTD_COMPLEX_MAPPINGS
957
	select SWIOTLB
S
Steven J. Hill 已提交
958
	select SYS_SUPPORTS_RELOCATABLE
959 960 961 962 963 964 965 966 967 968 969 970 971
	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.

972 973 974 975 976 977
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
978
	select HAVE_PCI
979 980 981
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
982
	select PHYS_ADDR_T_64BIT
983 984 985 986 987
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
988
	select IRQ_MIPS_CPU
989
	select ZONE_DMA32 if 64BIT
990 991
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
992 993
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
994 995 996 997
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

998 999 1000 1001 1002 1003
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
1004
	select HAVE_PCI
1005 1006
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1007
	select PHYS_ADDR_T_64BIT
1008
	select GPIOLIB
1009 1010 1011 1012 1013 1014
	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
1015
	select IRQ_MIPS_CPU
1016
	select ZONE_DMA32 if 64BIT
1017 1018
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1019
	select USE_OF
1020 1021
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1022 1023 1024 1025
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038
config MIPS_PARAVIRT
	bool "Para-Virtualized guest system"
	select CEVT_R4K
	select CSRC_R4K
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_4
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS64_R2
	select SYS_HAS_CPU_CAVIUM_OCTEON
1039
	select HAVE_PCI
1040 1041 1042 1043
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1044
endchoice
L
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1045

R
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1046
source "arch/mips/alchemy/Kconfig"
1047
source "arch/mips/ath25/Kconfig"
1048
source "arch/mips/ath79/Kconfig"
1049
source "arch/mips/bcm47xx/Kconfig"
1050
source "arch/mips/bcm63xx/Kconfig"
1051
source "arch/mips/bmips/Kconfig"
1052
source "arch/mips/generic/Kconfig"
1053
source "arch/mips/jazz/Kconfig"
1054
source "arch/mips/jz4740/Kconfig"
1055
source "arch/mips/lantiq/Kconfig"
1056
source "arch/mips/lasat/Kconfig"
1057
source "arch/mips/pic32/Kconfig"
1058
source "arch/mips/pistachio/Kconfig"
R
Ralf Baechle 已提交
1059
source "arch/mips/pmcs-msp71xx/Kconfig"
J
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1060
source "arch/mips/ralink/Kconfig"
1061
source "arch/mips/sgi-ip27/Kconfig"
1062
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1063
source "arch/mips/txx9/Kconfig"
1064
source "arch/mips/vr41xx/Kconfig"
1065
source "arch/mips/cavium-octeon/Kconfig"
1066
source "arch/mips/loongson2ef/Kconfig"
1067 1068
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1069
source "arch/mips/netlogic/Kconfig"
1070
source "arch/mips/paravirt/Kconfig"
1071

1072 1073
endmenu

1074 1075 1076 1077
config GENERIC_HWEIGHT
	bool
	default y

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1078 1079 1080 1081
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1082
config SCHED_OMIT_FRAME_POINTER
1083 1084 1085
	bool
	default y

L
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1086 1087 1088
#
# Select some configuration options automatically based on user selections.
#
1089
config FW_ARC
L
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1090 1091
	bool

1092 1093 1094
config ARCH_MAY_HAVE_PC_FDC
	bool

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1095 1096 1097
config BOOT_RAW
	bool

1098 1099 1100
config CEVT_BCM1480
	bool

1101 1102 1103
config CEVT_DS1287
	bool

1104 1105 1106
config CEVT_GT641XX
	bool

1107 1108 1109
config CEVT_R4K
	bool

1110 1111 1112
config CEVT_SB1250
	bool

1113 1114 1115
config CEVT_TXX9
	bool

1116 1117 1118
config CSRC_BCM1480
	bool

1119 1120 1121
config CSRC_IOASIC
	bool

1122 1123 1124
config CSRC_R4K
	bool

1125 1126 1127
config CSRC_SB1250
	bool

1128 1129 1130
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1131
config GPIO_TXX9
1132
	select GPIOLIB
1133 1134
	bool

1135
config FW_CFE
1136 1137
	bool

R
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1138 1139 1140
config ARCH_SUPPORTS_UPROBES
	bool

1141
config DMA_MAYBE_COHERENT
1142
	select ARCH_HAS_DMA_COHERENCE_H
1143 1144 1145
	select DMA_NONCOHERENT
	bool

1146 1147
config DMA_PERDEV_COHERENT
	bool
1148
	select ARCH_HAS_SETUP_DMA_OPS
1149
	select DMA_NONCOHERENT
1150

1151 1152
config DMA_NONCOHERENT
	bool
1153 1154 1155 1156 1157 1158 1159
	#
	# 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.
	#
1160
	select ARCH_HAS_DMA_WRITE_COMBINE
1161
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1162
	select ARCH_HAS_UNCACHED_SEGMENT
1163
	select NEED_DMA_MAP_STATE
1164
	select ARCH_HAS_DMA_COHERENT_TO_PFN
1165
	select DMA_NONCOHERENT_CACHE_SYNC
1166

1167
config SYS_HAS_EARLY_PRINTK
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1168 1169
	bool

1170
config SYS_SUPPORTS_HOTPLUG_CPU
1171 1172
	bool

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1173 1174 1175 1176 1177 1178
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1179 1180 1181
config MIPS_NILE4
	bool

1182 1183 1184
config SYNC_R4K
	bool

1185 1186 1187
config MIPS_MACHINE
	def_bool n

1188
config NO_IOPORT_MAP
1189 1190
	def_bool n

1191 1192
config GENERIC_CSUM
	bool
1193
	default y if !CPU_HAS_LOAD_STORE_LR
1194

1195 1196 1197
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1198
	select ISA_DMA_API
1199

1200 1201
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1202
	select GENERIC_ISA_DMA
1203

1204 1205 1206
config ISA_DMA_API
	bool

1207 1208 1209
config HOLES_IN_ZONE
	bool

1210 1211 1212
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1213 1214 1215
	  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.
1216

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1217 1218 1219 1220 1221 1222 1223 1224 1225
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


1226
#
M
Masanari Iida 已提交
1227
# Endianness selection.  Sufficiently obscure so many users don't know what to
1228 1229 1230 1231
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
M
Masanari Iida 已提交
1232
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1233 1234
	help
	  Some MIPS machines can be configured for either little or big endian
1235
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1236
	  Linux distribution.  In general there is one preferred byteorder for a
1237
	  particular system but some systems are just as commonly used in the
1238
	  one or the other endianness.
1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249

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

1250 1251 1252
config EXPORT_UASM
	bool

1253 1254 1255
config SYS_SUPPORTS_APM_EMULATION
	bool

1256 1257 1258 1259 1260
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1261

1262 1263
config SYS_SUPPORTS_HUGETLBFS
	bool
1264
	depends on CPU_SUPPORTS_HUGEPAGES
1265 1266
	default y

1267 1268 1269
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
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1270 1271 1272
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1273 1274 1275 1276 1277 1278
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1279 1280 1281
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1282 1283 1284
config IRQ_GT641XX
	bool

1285
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1286 1287
	bool

1288 1289 1290
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1291 1292 1293
config NO_EXCEPT_FILL
	bool

1294 1295 1296 1297 1298
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1299
	select IRQ_MIPS_CPU
1300 1301 1302 1303 1304 1305
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1306 1307 1308 1309
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1310
	select IRQ_MIPS_CPU
1311 1312 1313 1314 1315
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1316
	select SYS_SUPPORTS_MIPS16
1317 1318 1319 1320 1321 1322
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1323 1324 1325
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1326 1327 1328
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1329 1330 1331
config SGI_HAS_INDYDOG
	bool

1332 1333 1334
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349
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

1350
config FW_ARC32
1351 1352
	bool

P
Paul Bolle 已提交
1353
config FW_SNIPROM
1354 1355
	bool

L
Linus Torvalds 已提交
1356 1357 1358
config BOOT_ELF32
	bool

1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370
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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1371 1372
config MIPS_L1_CACHE_SHIFT
	int
1373
	default "7" if MIPS_L1_CACHE_SHIFT_7
1374 1375 1376
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
L
Linus Torvalds 已提交
1377 1378 1379 1380 1381
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

1382 1383 1384
config ARC_CMDLINE_ONLY
	bool

L
Linus Torvalds 已提交
1385 1386
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1387
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1388 1389 1390 1391 1392 1393 1394

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1395
config FW_ARC64
L
Linus Torvalds 已提交
1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1407 1408 1409
config CPU_LOONGSON64
	bool "Loongson GSx64 CPU"
	depends on SYS_HAS_CPU_LOONGSON64
1410
	select ARCH_HAS_PHYS_TO_DMA
1411 1412 1413
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1414
	select CPU_SUPPORTS_MSA
1415
	select CPU_HAS_LOAD_STORE_LR
1416 1417
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1418
	select MIPS_ASID_BITS_VARIABLE
1419
	select MIPS_PGD_C0_CONTEXT
1420
	select MIPS_L1_CACHE_SHIFT_6
1421
	select GPIOLIB
1422
	select SWIOTLB
1423
	help
J
Jiaxun Yang 已提交
1424 1425
		The Loongson GSx64 series of processor cores implements the
		MIPS64R2 instruction set with many extensions.
1426

J
Jiaxun Yang 已提交
1427 1428
config LOONGSON64_ENHANCEMENT
	bool "New Loongson GSx64E CPU Enhancements"
1429 1430 1431
	default n
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
J
Jiaxun Yang 已提交
1432
	depends on CPU_LOONGSON64
1433
	help
J
Jiaxun Yang 已提交
1434
	  New Loongson GSx64E cores (since Loongson-3A R2, as opposed to Loongson-3A
1435
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1436
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1437 1438 1439 1440 1441 1442 1443 1444
	  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
	  new Loongson 3 machines only, please say 'Y' here.

1445 1446 1447
config CPU_LOONGSON3_WORKAROUNDS
	bool "Old Loongson 3 LLSC Workarounds"
	default y if SMP
J
Jiaxun Yang 已提交
1448
	depends on CPU_LOONGSON64
1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459
	help
	  Loongson 3 processors have the llsc issues which require workarounds.
	  Without workarounds the system may hang unexpectedly.

	  Newer Loongson 3 will fix 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 old systems.

	  If unsure, please say Y.

1460 1461 1462
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1463
	select CPU_LOONGSON2EF
1464 1465 1466 1467
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1468
	  It has an internal FPGA northbridge, which is compatible to
1469 1470 1471 1472 1473
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1474
	select CPU_LOONGSON2EF
1475
	select GPIOLIB
1476 1477 1478 1479 1480 1481 1482 1483
	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.

1484 1485 1486 1487
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
1488
	select LEDS_GPIO_REGISTER
1489 1490
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1491 1492
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1493

Y
Yang Ling 已提交
1494 1495 1496 1497 1498 1499 1500
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
	select CPU_LOONGSON1
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1501 1502
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1503

1504 1505
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1506
	depends on SYS_HAS_CPU_MIPS32_R1
1507
	select CPU_HAS_PREFETCH
1508
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1509
	select CPU_SUPPORTS_32BIT_KERNEL
1510
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1511
	help
1512
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523
	  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"
1524
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1525
	select CPU_HAS_PREFETCH
1526
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1527
	select CPU_SUPPORTS_32BIT_KERNEL
1528
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1529
	select CPU_SUPPORTS_MSA
1530
	select HAVE_KVM
1531
	help
1532
	  Choose this option to build a kernel for release 2 or later of the
1533 1534 1535 1536 1537
	  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.

1538
config CPU_MIPS32_R6
1539
	bool "MIPS32 Release 6"
1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS32r6 processor. If you own an older
	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

1553 1554
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1555
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1556
	select CPU_HAS_PREFETCH
1557
	select CPU_HAS_LOAD_STORE_LR
1558 1559
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1560
	select CPU_SUPPORTS_HIGHMEM
1561
	select CPU_SUPPORTS_HUGEPAGES
1562 1563 1564 1565 1566 1567
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
R
Ralf Baechle 已提交
1568 1569 1570 1571 1572 1573 1574
	  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"
1575
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1576
	select CPU_HAS_PREFETCH
1577
	select CPU_HAS_LOAD_STORE_LR
R
Ralf Baechle 已提交
1578 1579
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1580
	select CPU_SUPPORTS_HIGHMEM
1581
	select CPU_SUPPORTS_HUGEPAGES
P
Paul Burton 已提交
1582
	select CPU_SUPPORTS_MSA
1583
	select HAVE_KVM
R
Ralf Baechle 已提交
1584 1585 1586 1587 1588 1589
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
Linus Torvalds 已提交
1590

1591
config CPU_MIPS64_R6
1592
	bool "MIPS64 Release 6"
1593 1594 1595 1596 1597
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1598
	select CPU_SUPPORTS_HUGEPAGES
1599
	select CPU_SUPPORTS_MSA
1600
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1601
	select HAVE_KVM
1602 1603 1604 1605 1606 1607
	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.

L
Linus Torvalds 已提交
1608 1609
config CPU_R3000
	bool "R3000"
1610
	depends on SYS_HAS_CPU_R3000
1611
	select CPU_HAS_WB
1612
	select CPU_HAS_LOAD_STORE_LR
1613
	select CPU_R3K_TLB
1614
	select CPU_SUPPORTS_32BIT_KERNEL
R
Ralf Baechle 已提交
1615
	select CPU_SUPPORTS_HIGHMEM
L
Linus Torvalds 已提交
1616 1617 1618 1619 1620 1621 1622 1623 1624 1625
	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"
1626
	depends on SYS_HAS_CPU_TX39XX
1627
	select CPU_SUPPORTS_32BIT_KERNEL
1628
	select CPU_HAS_LOAD_STORE_LR
1629
	select CPU_R3K_TLB
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config CPU_VR41XX
	bool "R41xx"
1633
	depends on SYS_HAS_CPU_VR41XX
1634 1635
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1636
	select CPU_HAS_LOAD_STORE_LR
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1637
	help
1638
	  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"
1645
	depends on SYS_HAS_CPU_R4X00
1646 1647
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1648
	select CPU_SUPPORTS_HUGEPAGES
1649
	select CPU_HAS_LOAD_STORE_LR
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1650 1651 1652 1653 1654 1655
	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1656
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1658
	select CPU_HAS_LOAD_STORE_LR
1659 1660
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1661
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_R5000
	bool "R5000"
1665
	depends on SYS_HAS_CPU_R5000
1666 1667
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1668
	select CPU_SUPPORTS_HUGEPAGES
1669
	select CPU_HAS_LOAD_STORE_LR
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1670 1671 1672
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1673 1674 1675 1676 1677
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1678
	select CPU_SUPPORTS_HUGEPAGES
1679
	select CPU_HAS_LOAD_STORE_LR
1680 1681 1682 1683
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1686
	depends on SYS_HAS_CPU_NEVADA
1687 1688
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1689
	select CPU_SUPPORTS_HUGEPAGES
1690
	select CPU_HAS_LOAD_STORE_LR
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1696
	depends on SYS_HAS_CPU_R10000
1697
	select CPU_HAS_PREFETCH
1698
	select CPU_HAS_LOAD_STORE_LR
1699 1700
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1702
	select CPU_SUPPORTS_HUGEPAGES
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1703 1704 1705 1706 1707
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1708
	depends on SYS_HAS_CPU_RM7000
1709
	select CPU_HAS_PREFETCH
1710
	select CPU_HAS_LOAD_STORE_LR
1711 1712
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1714
	select CPU_SUPPORTS_HUGEPAGES
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config CPU_SB1
	bool "SB1"
1718
	depends on SYS_HAS_CPU_SB1
1719
	select CPU_HAS_LOAD_STORE_LR
1720 1721
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1723
	select CPU_SUPPORTS_HUGEPAGES
1724
	select WEAK_ORDERING
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1725

1726 1727
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1728
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1729
	select CPU_HAS_PREFETCH
1730
	select CPU_HAS_LOAD_STORE_LR
1731 1732 1733
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1734
	select CPU_SUPPORTS_HUGEPAGES
1735 1736
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1737
	select MIPS_L1_CACHE_SHIFT_7
1738
	select HAVE_KVM
1739 1740 1741 1742 1743 1744
	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.

1745 1746 1747 1748
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1749
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1750 1751 1752 1753 1754
	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
1755
	select IRQ_MIPS_CPU
1756 1757
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1758
	select CPU_SUPPORTS_HIGHMEM
1759
	select CPU_HAS_PREFETCH
1760
	select CPU_HAS_LOAD_STORE_LR
1761 1762
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1763
	help
1764
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1765

1766 1767 1768
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1769
	select CPU_HAS_LOAD_STORE_LR
1770 1771 1772
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1773
	select CPU_SUPPORTS_HUGEPAGES
1774 1775 1776 1777
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1778 1779 1780 1781 1782 1783 1784 1785 1786 1787

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
1788
	select CPU_HAS_LOAD_STORE_LR
1789
	select CPU_MIPSR2
1790
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1792 1793
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1796 1797 1798
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1799
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS32 architecture including features from the 3.5 release such as
	  support for Enhanced Virtual Addressing (EVA).

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

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

config CPU_MIPS32_R5_XPA
	bool "Extended Physical Addressing (XPA)"
	depends on CPU_MIPS32_R5_FEATURES
	depends on !EVA
	depends on !PAGE_SIZE_4KB
	depends on SYS_SUPPORTS_HIGHMEM
	select XPA
	select HIGHMEM
1833
	select PHYS_ADDR_T_64BIT
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1834 1835 1836 1837 1838 1839 1840 1841 1842
	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.

1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869
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

1870 1871 1872 1873
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1874
	select HAVE_KERNEL_LZ4
1875
	select HAVE_KERNEL_LZMA
1876
	select HAVE_KERNEL_LZO
1877
	select HAVE_KERNEL_XZ
1878 1879 1880 1881 1882

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1883 1884 1885 1886
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1888 1889 1890 1891
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1892
	select CPU_SUPPORTS_HUGEPAGES
1893
	select ARCH_HAS_PHYS_TO_DMA
1894
	select CPU_HAS_LOAD_STORE_LR
1895

1896 1897 1898
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
1899
	select CPU_MIPSR2
1900
	select CPU_HAS_PREFETCH
1901
	select CPU_HAS_LOAD_STORE_LR
1902 1903
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1904
	select CPU_SUPPORTS_CPUFREQ
1905

1906
config CPU_BMIPS32_3300
1907
	select SMP_UP if SMP
1908
	bool
1909 1910 1911 1912 1913 1914 1915 1916

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1917
	select MIPS_L1_CACHE_SHIFT_6
1918 1919
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1920
	select CPU_HAS_RIXI
1921 1922 1923 1924

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1925
	select MIPS_L1_CACHE_SHIFT_7
1926 1927
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1928
	select CPU_HAS_RIXI
1929

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config SYS_HAS_CPU_LOONGSON64
1931 1932
	bool
	select CPU_SUPPORTS_CPUFREQ
1933
	select CPU_HAS_RIXI
1934

1935
config SYS_HAS_CPU_LOONGSON2E
1936 1937
	bool

1938 1939
config SYS_HAS_CPU_LOONGSON2F
	bool
1940 1941
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1942
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1943

1944 1945 1946
config SYS_HAS_CPU_LOONGSON1B
	bool

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config SYS_HAS_CPU_LOONGSON1C
	bool

1950 1951 1952 1953 1954 1955
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1956 1957 1958
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1961
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1962

1963 1964
config SYS_HAS_CPU_MIPS32_R6
	bool
1965
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1966

1967 1968 1969 1970 1971 1972
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1973 1974
config SYS_HAS_CPU_MIPS64_R6
	bool
1975
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1976

1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994
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

1995 1996 1997
config SYS_HAS_CPU_R5500
	bool

1998 1999 2000 2001 2002
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2003
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2004 2005 2006 2007 2008 2009 2010

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2011 2012 2013
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2014
config SYS_HAS_CPU_BMIPS
2015 2016
	bool

2017
config SYS_HAS_CPU_BMIPS32_3300
2018
	bool
2019
	select SYS_HAS_CPU_BMIPS
2020 2021 2022

config SYS_HAS_CPU_BMIPS4350
	bool
2023
	select SYS_HAS_CPU_BMIPS
2024 2025 2026

config SYS_HAS_CPU_BMIPS4380
	bool
2027
	select SYS_HAS_CPU_BMIPS
2028 2029 2030

config SYS_HAS_CPU_BMIPS5000
	bool
2031
	select SYS_HAS_CPU_BMIPS
2032
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2033

2034 2035 2036
config SYS_HAS_CPU_XLR
	bool

2037 2038 2039
config SYS_HAS_CPU_XLP
	bool

2040 2041 2042 2043
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2044 2045
config WEAK_ORDERING
	bool
2046 2047 2048 2049 2050 2051 2052

#
# 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
2053 2054 2055
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2057 2058 2059
#
config CPU_MIPS32
	bool
2060
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2061 2062 2063

config CPU_MIPS64
	bool
2064
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2065 2066

#
2067
# These indicate the revision of the architecture
2068 2069 2070 2071 2072 2073 2074
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2075
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2076
	select CPU_HAS_RIXI
2077
	select MIPS_SPRAM
2078

2079 2080 2081
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2082
	select CPU_HAS_RIXI
2083
	select HAVE_ARCH_BITREVERSE
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2084
	select MIPS_ASID_BITS_VARIABLE
2085
	select MIPS_CRC_SUPPORT
2086
	select MIPS_SPRAM
2087

2088 2089 2090 2091 2092 2093 2094 2095 2096 2097
config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
	default 6 if CPU_MIPSR6
	default 0
	help
	  Reflects the ISA revision being targeted by the kernel build. This
	  is effectively the Kconfig equivalent of MIPS_ISA_REV.

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 CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
2121 2122
config MIPS_PGD_C0_CONTEXT
	bool
2123
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2124

2125 2126 2127 2128
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2129 2130
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2131

2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147
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.
2148

2149 2150 2151 2152 2153 2154 2155 2156
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

2157 2158
config KVM_GUEST
	bool "KVM Guest Kernel"
2159
	depends on BROKEN_ON_SMP
2160
	help
2161 2162
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2163

2164 2165
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2166
	depends on KVM_GUEST
2167
	default 100
2168
	help
2169 2170 2171
	  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.
2172

2173 2174 2175 2176
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2177 2178 2179 2180 2181 2182 2183
	  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.

2184 2185
	  If unsure, say N.

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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2192
	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
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2193
	help
2194 2195 2196 2197
	  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"
2201
	depends on CPU_CAVIUM_OCTEON
2202
	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
2206 2207
	  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"
2211
	depends on !CPU_R3000 && !CPU_TX39XX
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2212 2213 2214
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2215 2216
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2218 2219 2220
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2221
	depends on !MIPS_VA_BITS_48
2222 2223 2224 2225 2226 2227
	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
2235
	  writing this option is still high experimental.
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endchoice

2239 2240
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2241 2242 2243 2244 2245 2246
	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
2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262
	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

2270 2271 2272 2273 2274 2275 2276
#
# 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
2294
	bool
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2296 2297
config CPU_GENERIC_DUMP_TLB
	bool
2298
	default y if !(CPU_R3000 || CPU_TX39XX)
2299

2300
config MIPS_FP_SUPPORT
2301 2302 2303 2304 2305 2306 2307 2308 2309 2310 2311 2312 2313
	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.
2314

2315 2316
config CPU_R2300_FPU
	bool
2317
	depends on MIPS_FP_SUPPORT
2318 2319
	default y if CPU_R3000 || CPU_TX39XX

2320 2321 2322
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2325
	depends on MIPS_FP_SUPPORT
2326
	default y if !CPU_R2300_FPU
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2328 2329
config CPU_R4K_CACHE_TLB
	bool
2330
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2331

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config MIPS_MT_SMP
2333
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2334
	default y
2335
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2336
	select CPU_MIPSR2_IRQ_VI
2337
	select CPU_MIPSR2_IRQ_EI
2338
	select SYNC_R4K
2339
	select MIPS_MT
2340
	select SMP
2341
	select SMP_UP
2342 2343
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2344
	select MIPS_PERF_SHARED_TC_COUNTERS
2345
	help
2346 2347 2348 2349 2350
	  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>.
2351

2352 2353 2354
config MIPS_MT
	bool

2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 2365 2366
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

2367 2368 2369
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
2374

2375 2376
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2377
	depends on CPU_MIPSR6
2378
	depends on MIPS_FP_SUPPORT
2379 2380 2381 2382
	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
2383
	  default. You can enable it using the 'mipsr2emu' kernel option.
2384 2385 2386
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2387 2388 2389 2390 2391 2392 2393
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2394 2395
config MIPS_VPE_LOADER
	bool "VPE loader support."
2396
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2397 2398 2399 2400 2401 2402
	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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2404 2405 2406 2407 2408
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2409 2410 2411 2412 2413
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2414 2415 2416 2417 2418 2419 2420 2421 2422 2423 2424
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
2425 2426
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2427

2428 2429 2430 2431 2432
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2433 2434 2435 2436 2437
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2438
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2440
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2441
	select SMP
2442
	select SYNC_R4K
2443
	select SYS_SUPPORTS_SMP
2444 2445 2446
	select WEAK_ORDERING
	default n
	help
2447 2448 2449
	  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.
2450

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

2454 2455
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2456
	depends on SYS_SUPPORTS_MIPS_CPS
2457
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2459 2460
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2462
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2463 2464 2465 2466 2467 2468 2469 2470 2471
	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.

2472
config MIPS_CPS_PM
2473
	depends on MIPS_CPS
2474 2475
	bool

2476 2477
config MIPS_CM
	bool
2478
	select MIPS_CPC
2479

2480 2481
config MIPS_CPC
	bool
2482

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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

2493 2494 2495 2496 2497 2498 2499 2500
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

2501 2502
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2503
	bool "SmartMIPS"
2504 2505 2506 2507 2508 2509 2510 2511 2512
	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.

2513
config CPU_MICROMIPS
2514
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2515
	bool "microMIPS"
2516 2517 2518 2519
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2520 2521
endchoice

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config CPU_HAS_MSA
2523
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2525
	depends on MIPS_FP_SUPPORT
2526
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
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	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
2530 2531 2532 2533 2534
	  is enabled the kernel will support allocating & switching MSA
	  vector register contexts. If you know that your kernel will only be
	  running on CPUs which do not support MSA or that your userland will
	  not be making use of it then you may wish to say N here to reduce
	  the size & complexity of your kernel.
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	  If unsure, say Y.

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config CPU_HAS_WB
2539
	bool
2540

2541 2542 2543
config XKS01
	bool

2544 2545 2546
config CPU_HAS_RIXI
	bool

2547 2548 2549 2550 2551 2552 2553
config CPU_HAS_LOAD_STORE_LR
	bool
	help
	  CPU has support for unaligned load and store instructions:
	  LWL, LWR, SWL, SWR (Load/store word left/right).
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems).

2554 2555 2556
#
# Vectored interrupt mode is an R2 feature
#
2557
config CPU_MIPSR2_IRQ_VI
2558
	bool
2559

2560 2561 2562
#
# Extended interrupt mode is an R2 feature
#
2563
config CPU_MIPSR2_IRQ_EI
2564
	bool
2565

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2571 2572 2573 2574 2575 2576 2577 2578 2579 2580 2581 2582 2583
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2584 2585 2586 2587
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2588 2589 2590 2591 2592 2593 2594
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
2596 2597 2598
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2602 2603 2604
config MIPS_CRC_SUPPORT
	bool

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#
# - Highmem only makes sense for the 32-bit kernel.
# - The current highmem code will only work properly on physically indexed
#   caches such as R3000, SB1, R7000 or those that look like they're virtually
#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
#   moment we protect the user and offer the highmem option only on machines
#   where it's known to be safe.  This will not offer highmem on a few systems
#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
#   indexed CPUs but we're playing safe.
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# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
#   know they might have memory configurations that could make use of highmem
#   support.
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#
config HIGHMEM
	bool "High Memory Support"
2620
	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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2628 2629 2630
config SYS_SUPPORTS_SMARTMIPS
	bool

2631 2632 2633
config SYS_SUPPORTS_MICROMIPS
	bool

2634 2635 2636 2637 2638 2639 2640
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

2644 2645
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2647

2648 2649
config ARCH_SPARSEMEM_ENABLE
	bool
2650
	select SPARSEMEM_STATIC if !SGI_IP27
2651

2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664
config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems disable this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2665 2666
config RELOCATABLE
	bool "Relocatable kernel"
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	depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC)
2668 2669 2670 2671 2672 2673
	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

2674 2675 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689
config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00100000"
	---help---
	  A table of relocation data will be appended to the kernel binary
	  and parsed at boot to fix up the relocated kernel.

	  This option allows the amount of space reserved for the table to be
	  adjusted, although the default of 1Mb should be ok in most cases.

	  The build will fail and a valid size suggested if this is too small.

	  If unsure, leave at the default value.

2690 2691 2692 2693
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2694 2695 2696 2697
	  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.
2698

2699
	  Entropy is generated using any coprocessor 0 registers available.
2700

2701
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2702

2703
	  If unsure, say N.
2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 2715 2716 2717 2718 2719

config RANDOMIZE_BASE_MAX_OFFSET
	hex "Maximum kASLR offset" if EXPERT
	depends on RANDOMIZE_BASE
	range 0x0 0x40000000 if EVA || 64BIT
	range 0x0 0x08000000
	default "0x01000000"
	---help---
	  When kASLR is active, this provides the maximum offset that will
	  be applied to the kernel image. It should be set according to the
	  amount of physical RAM available in the target system minus
	  PHYSICAL_START and must be a power of 2.

	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
	  EVA or 64-bit. The default is 16Mb.

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config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

2725 2726
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)
2728 2729 2730 2731 2732
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

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config SMP
	bool "Multi-Processing support"
2735 2736
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2738 2739
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2740

2741
	  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,
2744
	  uniprocessor machines. On a uniprocessor machine, the kernel
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	  will run faster if you say N here.

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

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	  See also the SMP-HOWTO available at
	  <http://www.tldp.org/docs.html#howto>.
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	  If you don't know what to do here, say N.

2755 2756 2757 2758 2759 2760 2761 2762 2763 2764
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.

2765 2766 2767
config SMP_UP
	bool

2768 2769 2770
config SYS_SUPPORTS_MIPS_CMP
	bool

2771 2772 2773
config SYS_SUPPORTS_MIPS_CPS
	bool

2774 2775 2776
config SYS_SUPPORTS_SMP
	bool

2777 2778 2779 2780 2781 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791
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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	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2796 2797 2798 2799 2800
	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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Linus Torvalds 已提交
2801 2802 2803 2804
	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
2805 2806
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
L
Linus Torvalds 已提交
2807 2808

	  This is purely to save memory - each supported CPU adds
2809 2810 2811
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
L
Linus Torvalds 已提交
2812

2813 2814
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2815 2816 2817 2818 2819 2820 2821 2822 2823

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
2824

2825 2826 2827 2828 2829 2830 2831 2832
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2833
	  Allows the configuration of the timer frequency.
2834

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Paul Burton 已提交
2835 2836 2837
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2838
	config HZ_48
2839
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2840 2841 2842 2843 2844 2845 2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860

	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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2861 2862 2863
config SYS_SUPPORTS_24HZ
	bool

2864 2865 2866 2867 2868 2869 2870 2871 2872 2873 2874 2875 2876 2877 2878 2879 2880 2881 2882 2883 2884 2885 2886
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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2887 2888 2889 2890 2891 2892 2893
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2894 2895 2896 2897
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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Paul Burton 已提交
2898
	default 24 if HZ_24
2899 2900 2901 2902 2903 2904 2905 2906
	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

D
Deng-Cheng Zhu 已提交
2907 2908 2909
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2910
config KEXEC
2911
	bool "Kexec system call"
2912
	select KEXEC_CORE
2913 2914 2915
	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
2916
	  but it is independent of the system firmware.   And like a reboot
2917 2918
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2919
	  The name comes from the similarity to the exec system call.
2920 2921 2922

	  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
2923 2924 2925
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2926

R
Ralf Baechle 已提交
2927
config CRASH_DUMP
2928 2929
	bool "Kernel crash dumps"
	help
R
Ralf Baechle 已提交
2930 2931 2932 2933 2934 2935 2936 2937 2938
	  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
2939
	hex "Physical address where the kernel is loaded"
2940
	default "0xffffffff84000000"
2941 2942
	depends on CRASH_DUMP
	help
R
Ralf Baechle 已提交
2943 2944 2945 2946 2947 2948
	  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).

2949 2950
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2951
	depends on PROC_FS
2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965
	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.

2966
config MIPS_O32_FP64_SUPPORT
2967
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2968 2969 2970 2971 2972 2973 2974 2975 2976 2977 2978 2979
	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.

2980 2981 2982 2983 2984 2985 2986 2987
	  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.
2988

2989
config USE_OF
2990
	bool
2991
	select OF
2992
	select OF_EARLY_FLATTREE
2993
	select IRQ_DOMAIN
2994

2995 2996 2997
config UHI_BOOT
	bool

2998 2999 3000
config BUILTIN_DTB
	bool

3001
choice
3002
	prompt "Kernel appended dtb support" if USE_OF
3003 3004 3005 3006 3007 3008 3009
	default MIPS_NO_APPENDED_DTB

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

3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
	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.

3024
	config MIPS_RAW_APPENDED_DTB
3025
		bool "vmlinux.bin or vmlinuz.bin"
3026 3027
		help
		  With this option, the boot code will look for a device tree binary
3028
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040 3041
		  (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

3042 3043
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3044
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3045
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3046
					 !CAVIUM_OCTEON_SOC
3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058
	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"
3059 3060 3061 3062

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3063 3064
endchoice

3065 3066
endmenu

3067 3068 3069 3070 3071 3072 3073 3074
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3075 3076
config PGTABLE_LEVELS
	int
3077
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3078 3079 3080
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3081 3082 3083
config MIPS_AUTO_PFN_OFFSET
	bool

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Linus Torvalds 已提交
3084 3085
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3086
config PCI_DRIVERS_GENERIC
3087
	select PCI_DOMAINS_GENERIC if PCI
3088 3089 3090 3091 3092
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3093
	select PCI_DOMAINS if PCI
L
Linus Torvalds 已提交
3094 3095 3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106

#
# 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
3107 3108 3109 3110 3111 3112 3113 3114
	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  TURBOchannel programming specifications are available
	  at:
	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
	  and:
	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
	  Linux driver support status is documented at:
	  <http://www.linux-mips.org/wiki/DECstation>
L
Linus Torvalds 已提交
3115 3116 3117 3118 3119

config MMU
	bool
	default y

3120 3121 3122 3123 3124 3125 3126 3127 3128
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
3129
	default 8
3130 3131

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3132
	default 15
3133

3134 3135
config I8253
	bool
3136
	select CLKSRC_I8253
3137
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3138
	select MIPS_EXTERNAL_TIMER
3139

3140 3141 3142
config ZONE_DMA
	bool

3143 3144 3145
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3146 3147 3148 3149 3150 3151
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3152
	bool
L
Linus Torvalds 已提交
3153 3154 3155 3156

config COMPAT
	bool

3157 3158 3159
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3160 3161
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3162 3163 3164 3165 3166
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3167 3168 3169 3170 3171 3172 3173 3174 3175
	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"
3176
	depends on 64BIT
3177
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3178 3179 3180
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3181 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191
	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
3192
	select ELFCORE
L
Linus Torvalds 已提交
3193

3194 3195
menu "Power management options"

W
Wu Zhangjin 已提交
3196 3197
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3198
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3199

J
Johannes Berg 已提交
3200 3201
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3202
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3203

3204
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3205

L
Linus Torvalds 已提交
3206 3207
endmenu

3208 3209 3210 3211
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3212 3213

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3214 3215
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3216

P
Paul Burton 已提交
3217 3218 3219 3220
source "drivers/cpuidle/Kconfig"

endmenu

3221 3222
source "drivers/firmware/Kconfig"

3223
source "arch/mips/kvm/Kconfig"