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_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 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_LOONGSON64
	bool "Loongson-2/3 family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of Loongson-2/3 family of machines.
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	  Loongson-2 is a family of single-core CPUs and Loongson-3 is a
	  family of multi-core CPUs. They are both 64-bit general-purpose
	  MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute
	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS)
	  in the People's Republic of China. The chief architect is Professor
	  Weiwu Hu.
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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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	select BUILTIN_DTB
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	select CEVT_R4K
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	select CLKSRC_MIPS_GIC
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	select COMMON_CLK
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	select CSRC_R4K
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	select DMA_MAYBE_COHERENT
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select HAVE_PCI
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	select I8253
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	select I8259
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	select IRQ_MIPS_CPU
	select LIBFDT
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	select MIPS_BONITO64
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	select MIPS_CPU_SCACHE
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	select MIPS_GIC
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	select MIPS_L1_CACHE_SHIFT_6
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	select MIPS_MSC
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	select PCI_GT64XXX_PCI0
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	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
526
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
527
	select SYS_HAS_CPU_MIPS32_R5
528
	select SYS_HAS_CPU_MIPS32_R6
529
	select SYS_HAS_CPU_MIPS64_R1
530
	select SYS_HAS_CPU_MIPS64_R2
531
	select SYS_HAS_CPU_MIPS64_R6
532 533
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
534 535
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
536
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
537
	select SYS_SUPPORTS_HIGHMEM
538
	select SYS_SUPPORTS_LITTLE_ENDIAN
539
	select SYS_SUPPORTS_MICROMIPS
540
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
541
	select SYS_SUPPORTS_MIPS_CMP
542
	select SYS_SUPPORTS_MIPS_CPS
543
	select SYS_SUPPORTS_MULTITHREADING
544
	select SYS_SUPPORTS_RELOCATABLE
545
	select SYS_SUPPORTS_SMARTMIPS
546
	select SYS_SUPPORTS_VPE_LOADER
547
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
548
	select USE_OF
549
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
550
	help
551
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
552 553
	  board.

554 555 556 557 558 559 560 561
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.

562 563 564
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
565
	select HAVE_PCI
566 567
	help
	  This enables support for the NEC Electronics Mark-eins boards.
568

569
config MACH_VR41XX
570
	bool "NEC VR4100 series based machines"
571
	select CEVT_R4K
572
	select CSRC_R4K
573
	select SYS_HAS_CPU_VR41XX
574
	select SYS_SUPPORTS_MIPS16
575
	select GPIOLIB
576

577 578 579 580
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
581
	  Support for NXP Semiconductors STB220 Development Board.
582 583 584 585 586 587

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
588
	  Support for NXP Semiconductors STB225 Development Board.
589

M
Marc St-Jean 已提交
590 591
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
592 593
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
594 595 596 597 598 599 600 601
	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
602
	select SYS_SUPPORTS_MIPS16
603
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
604 605
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
606 607
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
608 609 610 611 612 613
	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
614 615 616 617 618 619
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
620
	select IRQ_MIPS_CPU
J
John Crispin 已提交
621 622 623 624 625
	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
626
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
627 628
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
629 630
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
631

L
Linus Torvalds 已提交
632
config SGI_IP22
633
	bool "SGI IP22 (Indy/Indigo2)"
634 635
	select FW_ARC
	select FW_ARC32
636
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
637
	select BOOT_ELF32
638
	select CEVT_R4K
639
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
640
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
641
	select DMA_NONCOHERENT
642
	select HAVE_EISA
643
	select I8253
644
	select I8259
L
Linus Torvalds 已提交
645
	select IP22_CPU_SCACHE
646
	select IRQ_MIPS_CPU
647
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
648 649
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
650
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
651 652 653
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
654
	select SWAP_IO_SPACE
655 656
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
657 658 659 660 661 662 663 664
	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# select SYS_HAS_EARLY_PRINTK
665 666
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
667
	select SYS_SUPPORTS_BIG_ENDIAN
668
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
669 670 671 672 673 674
	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
675
	bool "SGI IP27 (Origin200/2000)"
676
	select ARCH_HAS_PHYS_TO_DMA
677 678
	select FW_ARC
	select FW_ARC64
679
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
680
	select DEFAULT_SGI_PARTITION
681
	select SYS_HAS_EARLY_PRINTK
682
	select HAVE_PCI
683
	select IRQ_MIPS_CPU
684
	select IRQ_DOMAIN_HIERARCHY
685
	select NR_CPUS_DEFAULT_64
686 687
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
688
	select SYS_HAS_CPU_R10000
689
	select SYS_SUPPORTS_64BIT_KERNEL
690
	select SYS_SUPPORTS_BIG_ENDIAN
691
	select SYS_SUPPORTS_NUMA
692
	select SYS_SUPPORTS_SMP
693
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
694 695 696 697 698
	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
699
config SGI_IP28
700
	bool "SGI IP28 (Indigo2 R10k)"
701 702
	select FW_ARC
	select FW_ARC64
703
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
704 705 706 707 708 709
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
710
	select IRQ_MIPS_CPU
711
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
712 713 714 715
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
716
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
717 718 719 720 721
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
722 723 724 725 726 727 728 729
	#
	# Disable EARLY_PRINTK for now since it leads to overwritten prom
	# memory during early boot on some machines.
	#
	# See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com
	# for a more details discussion
	#
	# select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
730 731
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
732
	select MIPS_L1_CACHE_SHIFT_7
733 734 735
	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
736

L
Linus Torvalds 已提交
737
config SGI_IP32
738
	bool "SGI IP32 (O2)"
739
	select ARCH_HAS_PHYS_TO_DMA
740 741
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
742
	select BOOT_ELF32
743
	select CEVT_R4K
744
	select CSRC_R4K
L
Linus Torvalds 已提交
745
	select DMA_NONCOHERENT
746
	select HAVE_PCI
747
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
748 749
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
750 751 752
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
753
	select SYS_HAS_CPU_NEVADA
754
	select SYS_SUPPORTS_64BIT_KERNEL
755 756
	select SYS_SUPPORTS_BIG_ENDIAN
	help
757
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
758

759 760
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
761
	select BOOT_ELF32
762
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
763
	select SWAP_IO_SPACE
764
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
765 766 767
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

768 769
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
770
	select BOOT_ELF32
771
	select SIBYTE_BCM1120
772
	select SWAP_IO_SPACE
773
	select SYS_HAS_CPU_SB1
774
	select SYS_SUPPORTS_BIG_ENDIAN
775
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
776

777 778
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
779
	select BOOT_ELF32
780
	select SIBYTE_BCM1125
781
	select SWAP_IO_SPACE
782
	select SYS_HAS_CPU_SB1
783
	select SYS_SUPPORTS_BIG_ENDIAN
784
	select SYS_SUPPORTS_HIGHMEM
785
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
786

787
config SIBYTE_RHONE
788
	bool "Sibyte BCM91125E-Rhone"
789 790 791
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
792
	select SYS_HAS_CPU_SB1
793 794
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
795

796 797
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
798
	select BOOT_ELF32
799
	select HAVE_PATA_PLATFORM
800
	select SIBYTE_SB1250
801
	select SWAP_IO_SPACE
802
	select SYS_HAS_CPU_SB1
803
	select SYS_SUPPORTS_BIG_ENDIAN
804
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
805
	select SYS_SUPPORTS_LITTLE_ENDIAN
806
	select ZONE_DMA32 if 64BIT
807
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
808

809 810
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
811
	select BOOT_ELF32
812
	select HAVE_PATA_PLATFORM
813 814
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
815
	select SYS_HAS_CPU_SB1
816 817 818
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
819
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
820

821 822
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
823 824 825
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
826
	select SYS_HAS_CPU_SB1
827 828
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
829
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
830

831 832
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
833
	select BOOT_ELF32
834 835
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
836
	select SWAP_IO_SPACE
837
	select SYS_HAS_CPU_SB1
838
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
839
	select SYS_SUPPORTS_HIGHMEM
840
	select SYS_SUPPORTS_LITTLE_ENDIAN
841
	select ZONE_DMA32 if 64BIT
842
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
843

844 845
config SNI_RM
	bool "SNI RM200/300/400"
846 847
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
848
	select FW_SNIPROM if CPU_BIG_ENDIAN
849
	select ARCH_MAY_HAVE_PC_FDC
850
	select ARCH_MIGHT_HAVE_PC_PARPORT
851
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
852
	select BOOT_ELF32
853
	select CEVT_R4K
854
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
855
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
856 857
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
858
	select HAVE_EISA
859
	select HAVE_PCSPKR_PLATFORM
860
	select HAVE_PCI
861
	select IRQ_MIPS_CPU
862
	select I8253
L
Linus Torvalds 已提交
863 864
	select I8259
	select ISA
865
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
866
	select SYS_HAS_CPU_R4X00
867
	select SYS_HAS_CPU_R5000
868
	select SYS_HAS_CPU_R10000
869
	select R5000_CPU_SCACHE
870
	select SYS_HAS_EARLY_PRINTK
871
	select SYS_SUPPORTS_32BIT_KERNEL
872
	select SYS_SUPPORTS_64BIT_KERNEL
873
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
874
	select SYS_SUPPORTS_HIGHMEM
875
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
876
	help
877 878
	  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
879 880 881
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

882 883
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
884

885 886
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
887

888 889 890 891 892
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
893
	select HAVE_PCI
894
	select IRQ_MIPS_CPU
895 896 897 898 899
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
900
	select GPIOLIB
901
	select MIPS_L1_CACHE_SHIFT_4
902 903 904 905
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

906 907
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
908
	select CEVT_R4K
909
	select ARCH_HAS_PHYS_TO_DMA
910
	select HAVE_RAPIDIO
911
	select PHYS_ADDR_T_64BIT
912 913
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
914
	select EDAC_SUPPORT
915
	select EDAC_ATOMIC_SCRUB
916 917
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
918
	select SYS_HAS_EARLY_PRINTK
919
	select SYS_HAS_CPU_CAVIUM_OCTEON
920
	select HAVE_PCI
D
David Daney 已提交
921
	select ZONE_DMA32
922
	select HOLES_IN_ZONE
923
	select GPIOLIB
924 925 926 927
	select LIBFDT
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
928 929
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
930
	select BUILTIN_DTB
931
	select MTD_COMPLEX_MAPPINGS
932
	select SWIOTLB
S
Steven J. Hill 已提交
933
	select SYS_SUPPORTS_RELOCATABLE
934 935 936 937 938 939 940 941 942 943 944 945 946
	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.

947 948 949 950 951 952
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
953
	select HAVE_PCI
954 955 956
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
957
	select PHYS_ADDR_T_64BIT
958 959 960 961 962
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
963
	select IRQ_MIPS_CPU
964
	select ZONE_DMA32 if 64BIT
965 966
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
967 968
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
969 970 971 972
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

973 974 975 976 977 978
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
979
	select HAVE_PCI
980 981
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
982
	select PHYS_ADDR_T_64BIT
983
	select GPIOLIB
984 985 986 987 988 989
	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
990
	select IRQ_MIPS_CPU
991
	select ZONE_DMA32 if 64BIT
992 993
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
994
	select USE_OF
995 996
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
997 998 999 1000
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013
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
1014
	select HAVE_PCI
1015 1016 1017 1018
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1019
endchoice
L
Linus Torvalds 已提交
1020

R
Ralf Baechle 已提交
1021
source "arch/mips/alchemy/Kconfig"
1022
source "arch/mips/ath25/Kconfig"
1023
source "arch/mips/ath79/Kconfig"
1024
source "arch/mips/bcm47xx/Kconfig"
1025
source "arch/mips/bcm63xx/Kconfig"
1026
source "arch/mips/bmips/Kconfig"
1027
source "arch/mips/generic/Kconfig"
1028
source "arch/mips/jazz/Kconfig"
1029
source "arch/mips/jz4740/Kconfig"
1030
source "arch/mips/lantiq/Kconfig"
1031
source "arch/mips/lasat/Kconfig"
1032
source "arch/mips/pic32/Kconfig"
1033
source "arch/mips/pistachio/Kconfig"
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1034
source "arch/mips/pmcs-msp71xx/Kconfig"
J
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1035
source "arch/mips/ralink/Kconfig"
1036
source "arch/mips/sgi-ip27/Kconfig"
1037
source "arch/mips/sibyte/Kconfig"
A
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1038
source "arch/mips/txx9/Kconfig"
1039
source "arch/mips/vr41xx/Kconfig"
1040
source "arch/mips/cavium-octeon/Kconfig"
1041 1042
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1043
source "arch/mips/netlogic/Kconfig"
1044
source "arch/mips/paravirt/Kconfig"
1045

1046 1047
endmenu

1048 1049 1050 1051
config GENERIC_HWEIGHT
	bool
	default y

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1052 1053 1054 1055
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1056
config SCHED_OMIT_FRAME_POINTER
1057 1058 1059
	bool
	default y

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1060 1061 1062
#
# Select some configuration options automatically based on user selections.
#
1063
config FW_ARC
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1064 1065
	bool

1066 1067 1068
config ARCH_MAY_HAVE_PC_FDC
	bool

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1069 1070 1071
config BOOT_RAW
	bool

1072 1073 1074
config CEVT_BCM1480
	bool

1075 1076 1077
config CEVT_DS1287
	bool

1078 1079 1080
config CEVT_GT641XX
	bool

1081 1082 1083
config CEVT_R4K
	bool

1084 1085 1086
config CEVT_SB1250
	bool

1087 1088 1089
config CEVT_TXX9
	bool

1090 1091 1092
config CSRC_BCM1480
	bool

1093 1094 1095
config CSRC_IOASIC
	bool

1096 1097 1098
config CSRC_R4K
	bool

1099 1100 1101
config CSRC_SB1250
	bool

1102 1103 1104
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1105
config GPIO_TXX9
1106
	select GPIOLIB
1107 1108
	bool

1109
config FW_CFE
1110 1111
	bool

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1112 1113 1114
config ARCH_SUPPORTS_UPROBES
	bool

1115
config DMA_MAYBE_COHERENT
1116
	select ARCH_HAS_DMA_COHERENCE_H
1117 1118 1119
	select DMA_NONCOHERENT
	bool

1120 1121
config DMA_PERDEV_COHERENT
	bool
1122
	select ARCH_HAS_SETUP_DMA_OPS
1123
	select DMA_NONCOHERENT
1124

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

1141
config SYS_HAS_EARLY_PRINTK
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1142 1143
	bool

1144
config SYS_SUPPORTS_HOTPLUG_CPU
1145 1146
	bool

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1147 1148 1149 1150 1151 1152
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1153 1154 1155
config MIPS_NILE4
	bool

1156 1157 1158
config SYNC_R4K
	bool

1159 1160 1161
config MIPS_MACHINE
	def_bool n

1162
config NO_IOPORT_MAP
1163 1164
	def_bool n

1165 1166
config GENERIC_CSUM
	bool
1167
	default y if !CPU_HAS_LOAD_STORE_LR
1168

1169 1170 1171
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1172
	select ISA_DMA_API
1173

1174 1175
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1176
	select GENERIC_ISA_DMA
1177

1178 1179 1180
config ISA_DMA_API
	bool

1181 1182 1183
config HOLES_IN_ZONE
	bool

1184 1185 1186
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1187 1188 1189
	  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.
1190

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1191 1192 1193 1194 1195 1196 1197 1198 1199
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


1200
#
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1201
# Endianness selection.  Sufficiently obscure so many users don't know what to
1202 1203 1204 1205
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
M
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1206
	prompt "Endianness selection"
L
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1207 1208
	help
	  Some MIPS machines can be configured for either little or big endian
1209
	  byte order. These modes require different kernels and a different
M
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1210
	  Linux distribution.  In general there is one preferred byteorder for a
1211
	  particular system but some systems are just as commonly used in the
1212
	  one or the other endianness.
1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223

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

1224 1225 1226
config EXPORT_UASM
	bool

1227 1228 1229
config SYS_SUPPORTS_APM_EMULATION
	bool

1230 1231 1232 1233 1234
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
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1235

1236 1237
config SYS_SUPPORTS_HUGETLBFS
	bool
1238
	depends on CPU_SUPPORTS_HUGEPAGES
1239 1240
	default y

1241 1242 1243
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

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1244 1245 1246
config IRQ_CPU_RM7K
	bool

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1247 1248 1249 1250 1251 1252
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1253 1254 1255
config IRQ_TXX9
	bool

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1256 1257 1258
config IRQ_GT641XX
	bool

1259
config PCI_GT64XXX_PCI0
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1260 1261
	bool

1262 1263 1264
config PCI_XTALK_BRIDGE
	bool

M
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1265 1266 1267
config NO_EXCEPT_FILL
	bool

1268 1269 1270 1271 1272
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1273
	select IRQ_MIPS_CPU
1274 1275 1276 1277 1278 1279
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1280 1281 1282 1283
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1284
	select IRQ_MIPS_CPU
1285 1286 1287 1288 1289
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1290
	select SYS_SUPPORTS_MIPS16
1291 1292 1293 1294 1295 1296
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1297 1298 1299
config MIPS_SPRAM
	bool

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1300 1301 1302
config SWAP_IO_SPACE
	bool

T
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1303 1304 1305
config SGI_HAS_INDYDOG
	bool

1306 1307 1308
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323
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

1324
config FW_ARC32
1325 1326
	bool

P
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1327
config FW_SNIPROM
1328 1329
	bool

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1330 1331 1332
config BOOT_ELF32
	bool

1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344
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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1345 1346
config MIPS_L1_CACHE_SHIFT
	int
1347
	default "7" if MIPS_L1_CACHE_SHIFT_7
1348 1349 1350
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
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1351 1352 1353 1354 1355 1356 1357
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1358
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
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1359 1360 1361

config ARC_MEMORY
	bool
1362
	depends on MACH_JAZZ || SNI_RM || SGI_IP32
L
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1363 1364 1365 1366
	default y

config ARC_PROMLIB
	bool
T
Thomas Bogendoerfer 已提交
1367
	depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32
L
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1368 1369
	default y

1370
config FW_ARC64
L
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1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

1382 1383 1384
config CPU_LOONGSON3
	bool "Loongson 3 CPU"
	depends on SYS_HAS_CPU_LOONGSON3
1385
	select ARCH_HAS_PHYS_TO_DMA
1386 1387 1388
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1389
	select CPU_HAS_LOAD_STORE_LR
1390 1391
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1392
	select MIPS_PGD_C0_CONTEXT
1393
	select MIPS_L1_CACHE_SHIFT_6
1394
	select GPIOLIB
1395
	select SWIOTLB
1396 1397 1398 1399
	help
		The Loongson 3 processor implements the MIPS64R2 instruction
		set with many extensions.

1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417
config LOONGSON3_ENHANCEMENT
	bool "New Loongson 3 CPU Enhancements"
	default n
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	depends on CPU_LOONGSON3
	help
	  New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User
	  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.

1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432
config CPU_LOONGSON3_WORKAROUNDS
	bool "Old Loongson 3 LLSC Workarounds"
	default y if SMP
	depends on CPU_LOONGSON3
	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.

1433 1434 1435 1436
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2
1437 1438 1439 1440
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1441
	  It has an internal FPGA northbridge, which is compatible to
1442 1443 1444 1445 1446 1447
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2
1448
	select GPIOLIB
1449 1450 1451 1452 1453 1454 1455 1456
	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.

1457 1458 1459 1460
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON1
1461
	select LEDS_GPIO_REGISTER
1462 1463
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1464 1465
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1466

Y
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1467 1468 1469 1470 1471 1472 1473
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
1474 1475
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1476

1477 1478
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1479
	depends on SYS_HAS_CPU_MIPS32_R1
1480
	select CPU_HAS_PREFETCH
1481
	select CPU_HAS_LOAD_STORE_LR
R
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1482
	select CPU_SUPPORTS_32BIT_KERNEL
1483
	select CPU_SUPPORTS_HIGHMEM
R
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1484
	help
1485
	  Choose this option to build a kernel for release 1 or later of the
R
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1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496
	  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"
1497
	depends on SYS_HAS_CPU_MIPS32_R2
R
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1498
	select CPU_HAS_PREFETCH
1499
	select CPU_HAS_LOAD_STORE_LR
R
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1500
	select CPU_SUPPORTS_32BIT_KERNEL
1501
	select CPU_SUPPORTS_HIGHMEM
P
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1502
	select CPU_SUPPORTS_MSA
1503
	select HAVE_KVM
1504
	help
1505
	  Choose this option to build a kernel for release 2 or later of the
1506 1507 1508 1509 1510
	  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.

1511
config CPU_MIPS32_R6
1512
	bool "MIPS32 Release 6"
1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525
	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.

1526 1527
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1528
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1529
	select CPU_HAS_PREFETCH
1530
	select CPU_HAS_LOAD_STORE_LR
1531 1532
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1533
	select CPU_SUPPORTS_HIGHMEM
1534
	select CPU_SUPPORTS_HUGEPAGES
1535 1536 1537 1538 1539 1540
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
R
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1541 1542 1543 1544 1545 1546 1547
	  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"
1548
	depends on SYS_HAS_CPU_MIPS64_R2
R
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1549
	select CPU_HAS_PREFETCH
1550
	select CPU_HAS_LOAD_STORE_LR
R
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1551 1552
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1553
	select CPU_SUPPORTS_HIGHMEM
1554
	select CPU_SUPPORTS_HUGEPAGES
P
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1555
	select CPU_SUPPORTS_MSA
1556
	select HAVE_KVM
R
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1557 1558 1559 1560 1561 1562
	help
	  Choose this option to build a kernel for release 2 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
L
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1563

1564
config CPU_MIPS64_R6
1565
	bool "MIPS64 Release 6"
1566 1567 1568 1569 1570
	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
1571
	select CPU_SUPPORTS_HUGEPAGES
1572
	select CPU_SUPPORTS_MSA
1573
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1574
	select HAVE_KVM
1575 1576 1577 1578 1579 1580
	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
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1581 1582
config CPU_R3000
	bool "R3000"
1583
	depends on SYS_HAS_CPU_R3000
1584
	select CPU_HAS_WB
1585
	select CPU_HAS_LOAD_STORE_LR
1586
	select CPU_R3K_TLB
1587
	select CPU_SUPPORTS_32BIT_KERNEL
R
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1588
	select CPU_SUPPORTS_HIGHMEM
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1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
	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"
1599
	depends on SYS_HAS_CPU_TX39XX
1600
	select CPU_SUPPORTS_32BIT_KERNEL
1601
	select CPU_HAS_LOAD_STORE_LR
1602
	select CPU_R3K_TLB
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1603 1604 1605

config CPU_VR41XX
	bool "R41xx"
1606
	depends on SYS_HAS_CPU_VR41XX
1607 1608
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1609
	select CPU_HAS_LOAD_STORE_LR
L
Linus Torvalds 已提交
1610
	help
1611
	  The options selects support for the NEC VR4100 series of processors.
L
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1612 1613 1614 1615 1616 1617
	  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"
1618
	depends on SYS_HAS_CPU_R4X00
1619 1620
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1621
	select CPU_SUPPORTS_HUGEPAGES
1622
	select CPU_HAS_LOAD_STORE_LR
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1629
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1631
	select CPU_HAS_LOAD_STORE_LR
1632 1633
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1634
	select CPU_SUPPORTS_HUGEPAGES
L
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1635 1636 1637

config CPU_R5000
	bool "R5000"
1638
	depends on SYS_HAS_CPU_R5000
1639 1640
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1641
	select CPU_SUPPORTS_HUGEPAGES
1642
	select CPU_HAS_LOAD_STORE_LR
L
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1643 1644 1645
	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1646 1647 1648 1649 1650
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1651
	select CPU_SUPPORTS_HUGEPAGES
1652
	select CPU_HAS_LOAD_STORE_LR
1653 1654 1655 1656
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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config CPU_NEVADA
	bool "RM52xx"
1659
	depends on SYS_HAS_CPU_NEVADA
1660 1661
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1662
	select CPU_SUPPORTS_HUGEPAGES
1663
	select CPU_HAS_LOAD_STORE_LR
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	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1669
	depends on SYS_HAS_CPU_R10000
1670
	select CPU_HAS_PREFETCH
1671
	select CPU_HAS_LOAD_STORE_LR
1672 1673
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1675
	select CPU_SUPPORTS_HUGEPAGES
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1676 1677 1678 1679 1680
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1681
	depends on SYS_HAS_CPU_RM7000
1682
	select CPU_HAS_PREFETCH
1683
	select CPU_HAS_LOAD_STORE_LR
1684 1685
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1687
	select CPU_SUPPORTS_HUGEPAGES
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1688 1689 1690

config CPU_SB1
	bool "SB1"
1691
	depends on SYS_HAS_CPU_SB1
1692
	select CPU_HAS_LOAD_STORE_LR
1693 1694
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
1696
	select CPU_SUPPORTS_HUGEPAGES
1697
	select WEAK_ORDERING
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1698

1699 1700
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1701
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1702
	select CPU_HAS_PREFETCH
1703
	select CPU_HAS_LOAD_STORE_LR
1704 1705 1706
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1707
	select CPU_SUPPORTS_HUGEPAGES
1708 1709
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1710
	select MIPS_L1_CACHE_SHIFT_7
1711
	select HAVE_KVM
1712 1713 1714 1715 1716 1717
	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.

1718 1719 1720 1721
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1722
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1723 1724 1725 1726 1727
	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
1728
	select IRQ_MIPS_CPU
1729 1730
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1731
	select CPU_SUPPORTS_HIGHMEM
1732
	select CPU_HAS_PREFETCH
1733
	select CPU_HAS_LOAD_STORE_LR
1734 1735
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1736
	help
1737
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1738

1739 1740 1741
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
1742
	select CPU_HAS_LOAD_STORE_LR
1743 1744 1745
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1746
	select CPU_SUPPORTS_HUGEPAGES
1747 1748 1749 1750
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1751 1752 1753 1754 1755 1756 1757 1758 1759 1760

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
1761
	select CPU_HAS_LOAD_STORE_LR
1762
	select CPU_MIPSR2
1763
	select CPU_SUPPORTS_HUGEPAGES
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	select MIPS_ASID_BITS_VARIABLE
1765 1766
	help
	  Netlogic Microsystems XLP processors.
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endchoice

1769 1770 1771
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1772
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788
	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
1806
	select PHYS_ADDR_T_64BIT
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	default n
	help
	  Choose this option if you want to enable the Extended Physical
	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
	  benefit is to increase physical addressing equal to or greater
	  than 40 bits. Note that this has the side effect of turning on
	  64-bit addressing which in turn makes the PTEs 64-bit in size.
	  If unsure, say 'N' here.

1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842
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

1843 1844 1845 1846
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1847
	select HAVE_KERNEL_LZ4
1848
	select HAVE_KERNEL_LZMA
1849
	select HAVE_KERNEL_LZO
1850
	select HAVE_KERNEL_XZ
1851 1852 1853 1854 1855

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1856 1857 1858 1859
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

1860 1861 1862 1863 1864
config CPU_LOONGSON2
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1865
	select CPU_SUPPORTS_HUGEPAGES
1866
	select ARCH_HAS_PHYS_TO_DMA
1867
	select CPU_HAS_LOAD_STORE_LR
1868

1869 1870 1871
config CPU_LOONGSON1
	bool
	select CPU_MIPS32
1872
	select CPU_MIPSR2
1873
	select CPU_HAS_PREFETCH
1874
	select CPU_HAS_LOAD_STORE_LR
1875 1876
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1877
	select CPU_SUPPORTS_CPUFREQ
1878

1879
config CPU_BMIPS32_3300
1880
	select SMP_UP if SMP
1881
	bool
1882 1883 1884 1885 1886 1887 1888 1889

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1890
	select MIPS_L1_CACHE_SHIFT_6
1891 1892
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1893
	select CPU_HAS_RIXI
1894 1895 1896 1897

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1898
	select MIPS_L1_CACHE_SHIFT_7
1899 1900
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1901
	select CPU_HAS_RIXI
1902

1903 1904 1905
config SYS_HAS_CPU_LOONGSON3
	bool
	select CPU_SUPPORTS_CPUFREQ
1906
	select CPU_HAS_RIXI
1907

1908
config SYS_HAS_CPU_LOONGSON2E
1909 1910
	bool

1911 1912
config SYS_HAS_CPU_LOONGSON2F
	bool
1913 1914
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1915
	select CPU_SUPPORTS_UNCACHED_ACCELERATED
1916

1917 1918 1919
config SYS_HAS_CPU_LOONGSON1B
	bool

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1920 1921 1922
config SYS_HAS_CPU_LOONGSON1C
	bool

1923 1924 1925 1926 1927 1928
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1929 1930 1931
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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config SYS_HAS_CPU_MIPS32_R5
	bool
1934
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
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1935

1936 1937
config SYS_HAS_CPU_MIPS32_R6
	bool
1938
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1939

1940 1941 1942 1943 1944 1945
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1946 1947
config SYS_HAS_CPU_MIPS64_R6
	bool
1948
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1949

1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967
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

1968 1969 1970
config SYS_HAS_CPU_R5500
	bool

1971 1972 1973 1974 1975
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
1976
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1977 1978 1979 1980 1981 1982 1983

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

1984 1985 1986
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

1987
config SYS_HAS_CPU_BMIPS
1988 1989
	bool

1990
config SYS_HAS_CPU_BMIPS32_3300
1991
	bool
1992
	select SYS_HAS_CPU_BMIPS
1993 1994 1995

config SYS_HAS_CPU_BMIPS4350
	bool
1996
	select SYS_HAS_CPU_BMIPS
1997 1998 1999

config SYS_HAS_CPU_BMIPS4380
	bool
2000
	select SYS_HAS_CPU_BMIPS
2001 2002 2003

config SYS_HAS_CPU_BMIPS5000
	bool
2004
	select SYS_HAS_CPU_BMIPS
2005
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2006

2007 2008 2009
config SYS_HAS_CPU_XLR
	bool

2010 2011 2012
config SYS_HAS_CPU_XLP
	bool

2013 2014 2015 2016
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2017 2018
config WEAK_ORDERING
	bool
2019 2020 2021 2022 2023 2024 2025

#
# 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
2026 2027 2028
endmenu

#
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# These two indicate any level of the MIPS32 and MIPS64 architecture
2030 2031 2032
#
config CPU_MIPS32
	bool
2033
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2034 2035 2036

config CPU_MIPS64
	bool
2037
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2038 2039

#
2040
# These indicate the revision of the architecture
2041 2042 2043 2044 2045 2046 2047
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2048
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2049
	select CPU_HAS_RIXI
2050
	select MIPS_SPRAM
2051

2052 2053 2054
config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2055
	select CPU_HAS_RIXI
2056
	select HAVE_ARCH_BITREVERSE
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2057
	select MIPS_ASID_BITS_VARIABLE
2058
	select MIPS_CRC_SUPPORT
2059
	select MIPS_SPRAM
2060

2061 2062 2063 2064 2065 2066 2067 2068 2069 2070
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.

2071 2072 2073
config EVA
	bool

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config XPA
	bool

2077 2078 2079 2080 2081 2082 2083 2084
config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
2085 2086 2087 2088
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
2089 2090
config CPU_SUPPORTS_HUGEPAGES
	bool
2091
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2092 2093
config CPU_SUPPORTS_UNCACHED_ACCELERATED
	bool
2094 2095
config MIPS_PGD_C0_CONTEXT
	bool
2096
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2097

2098 2099 2100 2101
#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
2102 2103
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2104

2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120
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.
2121

2122 2123 2124 2125 2126 2127 2128 2129
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

2130 2131
config KVM_GUEST
	bool "KVM Guest Kernel"
2132
	depends on BROKEN_ON_SMP
2133
	help
2134 2135
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.
2136

2137 2138
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2139
	depends on KVM_GUEST
2140
	default 100
2141
	help
2142 2143 2144
	  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.
2145

2146 2147 2148 2149
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2150 2151 2152 2153 2154 2155 2156
	  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.

2157 2158
	  If unsure, say N.

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2159 2160 2161 2162 2163 2164
choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
2165
	depends on !CPU_LOONGSON2 && !CPU_LOONGSON3
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2166
	help
2167 2168 2169 2170
	  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"
2174
	depends on CPU_CAVIUM_OCTEON
2175
	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
2179 2180
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.
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2181 2182 2183

config PAGE_SIZE_16KB
	bool "16kB"
2184
	depends on !CPU_R3000 && !CPU_TX39XX
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2185 2186 2187
	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2188 2189
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2190

2191 2192 2193
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2194
	depends on !MIPS_VA_BITS_48
2195 2196 2197 2198 2199 2200
	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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2203
	depends on !CPU_R3000 && !CPU_TX39XX
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2204 2205 2206 2207
	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
2208
	  writing this option is still high experimental.
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2209 2210 2211

endchoice

2212 2213
config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
2214 2215 2216 2217 2218 2219
	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
2220 2221 2222 2223 2224 2225 2226 2227 2228 2229 2230 2231 2232 2233 2234 2235
	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

2243 2244 2245 2246 2247 2248 2249
#
# 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
2267
	bool
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2269 2270
config CPU_GENERIC_DUMP_TLB
	bool
2271
	default y if !(CPU_R3000 || CPU_TX39XX)
2272

2273
config MIPS_FP_SUPPORT
2274 2275 2276 2277 2278 2279 2280 2281 2282 2283 2284 2285 2286
	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.
2287

2288 2289
config CPU_R2300_FPU
	bool
2290
	depends on MIPS_FP_SUPPORT
2291 2292
	default y if CPU_R3000 || CPU_TX39XX

2293 2294 2295
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2298
	depends on MIPS_FP_SUPPORT
2299
	default y if !CPU_R2300_FPU
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2301 2302
config CPU_R4K_CACHE_TLB
	bool
2303
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2304

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config MIPS_MT_SMP
2306
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2307
	default y
2308
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2309
	select CPU_MIPSR2_IRQ_VI
2310
	select CPU_MIPSR2_IRQ_EI
2311
	select SYNC_R4K
2312
	select MIPS_MT
2313
	select SMP
2314
	select SMP_UP
2315 2316
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2317
	select MIPS_PERF_SHARED_TC_COUNTERS
2318
	help
2319 2320 2321 2322 2323
	  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>.
2324

2325 2326 2327
config MIPS_MT
	bool

2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339
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

2340 2341 2342
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
2347

2348 2349
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2350
	depends on CPU_MIPSR6
2351
	depends on MIPS_FP_SUPPORT
2352 2353 2354 2355
	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
2356
	  default. You can enable it using the 'mipsr2emu' kernel option.
2357 2358 2359
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2360 2361 2362 2363 2364 2365 2366
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2367 2368
config MIPS_VPE_LOADER
	bool "VPE loader support."
2369
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2370 2371 2372 2373 2374 2375
	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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2377 2378 2379 2380 2381
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2382 2383 2384 2385 2386
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2387 2388 2389 2390 2391 2392 2393 2394 2395 2396 2397
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
2398 2399
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2400

2401 2402 2403 2404 2405
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2406 2407 2408 2409 2410
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2411
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2413
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2414
	select SMP
2415
	select SYNC_R4K
2416
	select SYS_SUPPORTS_SMP
2417 2418 2419
	select WEAK_ORDERING
	default n
	help
2420 2421 2422
	  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.
2423

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

2427 2428
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2429
	depends on SYS_SUPPORTS_MIPS_CPS
2430
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2432 2433
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2435
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2436 2437 2438 2439 2440 2441 2442 2443 2444
	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.

2445
config MIPS_CPS_PM
2446
	depends on MIPS_CPS
2447 2448
	bool

2449 2450
config MIPS_CM
	bool
2451
	select MIPS_CPC
2452

2453 2454
config MIPS_CPC
	bool
2455

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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

2466 2467 2468 2469 2470 2471 2472 2473
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

2474 2475
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2476
	bool "SmartMIPS"
2477 2478 2479 2480 2481 2482 2483 2484 2485
	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.

2486
config CPU_MICROMIPS
2487
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2488
	bool "microMIPS"
2489 2490 2491 2492
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2493 2494
endchoice

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config CPU_HAS_MSA
2496
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2498
	depends on MIPS_FP_SUPPORT
2499
	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
2503 2504 2505 2506 2507
	  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
2512
	bool
2513

2514 2515 2516
config XKS01
	bool

2517 2518 2519
config CPU_HAS_RIXI
	bool

2520 2521 2522 2523 2524 2525 2526
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).

2527 2528 2529
#
# Vectored interrupt mode is an R2 feature
#
2530
config CPU_MIPSR2_IRQ_VI
2531
	bool
2532

2533 2534 2535
#
# Extended interrupt mode is an R2 feature
#
2536
config CPU_MIPSR2_IRQ_EI
2537
	bool
2538

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2557 2558 2559 2560
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2561 2562 2563 2564 2565 2566 2567
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
2569 2570 2571
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2575 2576 2577
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"
2593
	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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2601 2602 2603
config SYS_SUPPORTS_SMARTMIPS
	bool

2604 2605 2606
config SYS_SUPPORTS_MICROMIPS
	bool

2607 2608 2609 2610 2611 2612 2613
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

2617 2618
config ARCH_FLATMEM_ENABLE
	def_bool y
2619
	depends on !NUMA && !CPU_LOONGSON2
2620

2621 2622 2623 2624
config ARCH_DISCONTIGMEM_ENABLE
	bool
	default y if SGI_IP27
	help
2625
	  Say Y to support efficient handling of discontiguous physical memory,
2626 2627
	  for architectures which are either NUMA (Non-Uniform Memory Access)
	  or have huge holes in the physical address space for other reasons.
2628
	  See <file:Documentation/vm/numa.rst> for more.
2629

2630 2631
config ARCH_SPARSEMEM_ENABLE
	bool
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	select SPARSEMEM_STATIC
2633

2634 2635 2636 2637 2638 2639 2640 2641 2642 2643 2644 2645 2646
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

2647 2648
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)
2650 2651 2652 2653 2654 2655
	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

2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 2666 2667 2668 2669 2670 2671
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.

2672 2673 2674 2675
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2676 2677 2678 2679
	  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.
2680

2681
	  Entropy is generated using any coprocessor 0 registers available.
2682

2683
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2684

2685
	  If unsure, say N.
2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 2696 2697 2698 2699 2700 2701

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

2707 2708
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
2709
	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3)
2710 2711 2712 2713 2714
	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"
2717 2718
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2720 2721
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2723
	  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,
2726
	  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.

2737 2738 2739 2740 2741 2742 2743 2744 2745 2746
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.

2747 2748 2749
config SMP_UP
	bool

2750 2751 2752
config SYS_SUPPORTS_MIPS_CMP
	bool

2753 2754 2755
config SYS_SUPPORTS_MIPS_CPS
	bool

2756 2757 2758
config SYS_SUPPORTS_SMP
	bool

2759 2760 2761 2762 2763 2764 2765 2766 2767 2768 2769 2770 2771 2772 2773
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
2778 2779 2780 2781 2782
	default "4" if NR_CPUS_DEFAULT_4
	default "8" if NR_CPUS_DEFAULT_8
	default "16" if NR_CPUS_DEFAULT_16
	default "32" if NR_CPUS_DEFAULT_32
	default "64" if NR_CPUS_DEFAULT_64
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	help
	  This allows you to specify the maximum number of CPUs which this
	  kernel will support.  The maximum supported value is 32 for 32-bit
	  kernel and 64 for 64-bit kernels; the minimum value which makes
2787 2788
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.
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	  This is purely to save memory - each supported CPU adds
2791 2792 2793
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.
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2795 2796
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2797 2798 2799 2800 2801 2802 2803 2804 2805

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
2806

2807 2808 2809 2810 2811 2812 2813 2814
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2815
	  Allows the configuration of the timer frequency.
2816

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Paul Burton 已提交
2817 2818 2819
	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2820
	config HZ_48
2821
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2822 2823 2824 2825 2826 2827 2828 2829 2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842

	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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2843 2844 2845
config SYS_SUPPORTS_24HZ
	bool

2846 2847 2848 2849 2850 2851 2852 2853 2854 2855 2856 2857 2858 2859 2860 2861 2862 2863 2864 2865 2866 2867 2868
config SYS_SUPPORTS_48HZ
	bool

config SYS_SUPPORTS_100HZ
	bool

config SYS_SUPPORTS_128HZ
	bool

config SYS_SUPPORTS_250HZ
	bool

config SYS_SUPPORTS_256HZ
	bool

config SYS_SUPPORTS_1000HZ
	bool

config SYS_SUPPORTS_1024HZ
	bool

config SYS_SUPPORTS_ARBIT_HZ
	bool
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	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2876 2877 2878 2879
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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Paul Burton 已提交
2880
	default 24 if HZ_24
2881 2882 2883 2884 2885 2886 2887 2888
	default 48 if HZ_48
	default 100 if HZ_100
	default 128 if HZ_128
	default 250 if HZ_250
	default 256 if HZ_256
	default 1000 if HZ_1000
	default 1024 if HZ_1024

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Deng-Cheng Zhu 已提交
2889 2890 2891
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2892
config KEXEC
2893
	bool "Kexec system call"
2894
	select KEXEC_CORE
2895 2896 2897
	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
2898
	  but it is independent of the system firmware.   And like a reboot
2899 2900
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2901
	  The name comes from the similarity to the exec system call.
2902 2903 2904

	  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
2905 2906 2907
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2908

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Ralf Baechle 已提交
2909
config CRASH_DUMP
2910 2911
	bool "Kernel crash dumps"
	help
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Ralf Baechle 已提交
2912 2913 2914 2915 2916 2917 2918 2919 2920
	  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
2921
	hex "Physical address where the kernel is loaded"
2922
	default "0xffffffff84000000"
2923 2924
	depends on CRASH_DUMP
	help
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Ralf Baechle 已提交
2925 2926 2927 2928 2929 2930
	  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).

2931 2932
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
2933
	depends on PROC_FS
2934 2935 2936 2937 2938 2939 2940 2941 2942 2943 2944 2945 2946 2947
	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.

2948
config MIPS_O32_FP64_SUPPORT
2949
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961
	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.

2962 2963 2964 2965 2966 2967 2968 2969
	  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.
2970

2971
config USE_OF
2972
	bool
2973
	select OF
2974
	select OF_EARLY_FLATTREE
2975
	select IRQ_DOMAIN
2976

2977 2978 2979
config UHI_BOOT
	bool

2980 2981 2982
config BUILTIN_DTB
	bool

2983
choice
2984
	prompt "Kernel appended dtb support" if USE_OF
2985 2986 2987 2988 2989 2990 2991
	default MIPS_NO_APPENDED_DTB

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

2992 2993 2994 2995 2996 2997 2998 2999 3000 3001 3002 3003 3004 3005
	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.

3006
	config MIPS_RAW_APPENDED_DTB
3007
		bool "vmlinux.bin or vmlinuz.bin"
3008 3009
		help
		  With this option, the boot code will look for a device tree binary
3010
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023
		  (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

3024 3025
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3026
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3027
					 !MIPS_MALTA && \
J
Jonas Gorski 已提交
3028
					 !CAVIUM_OCTEON_SOC
3029 3030 3031 3032 3033 3034 3035 3036 3037 3038 3039 3040
	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"
3041 3042 3043 3044

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3045 3046
endchoice

3047 3048
endmenu

3049 3050 3051 3052 3053 3054 3055 3056
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3057 3058
config PGTABLE_LEVELS
	int
3059
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3060 3061 3062
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3063 3064 3065
config MIPS_AUTO_PFN_OFFSET
	bool

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

3068
config PCI_DRIVERS_GENERIC
3069
	select PCI_DOMAINS_GENERIC if PCI
3070 3071 3072 3073 3074
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3075
	select PCI_DOMAINS if PCI
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Linus Torvalds 已提交
3076 3077 3078 3079 3080 3081 3082 3083 3084 3085 3086 3087 3088

#
# 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
3089 3090 3091 3092 3093 3094 3095 3096
	  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
3097 3098 3099 3100 3101

config MMU
	bool
	default y

3102 3103 3104 3105 3106 3107 3108 3109 3110
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
3111
	default 8
3112 3113

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3114
	default 15
3115

3116 3117
config I8253
	bool
3118
	select CLKSRC_I8253
3119
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3120
	select MIPS_EXTERNAL_TIMER
3121

3122 3123 3124
config ZONE_DMA
	bool

3125 3126 3127
config ZONE_DMA32
	bool

L
Linus Torvalds 已提交
3128 3129 3130 3131 3132 3133
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3134
	bool
L
Linus Torvalds 已提交
3135 3136 3137 3138

config COMPAT
	bool

3139 3140 3141
config SYSVIPC_COMPAT
	bool

L
Linus Torvalds 已提交
3142 3143
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3144 3145 3146 3147 3148
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
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Linus Torvalds 已提交
3149 3150 3151 3152 3153 3154 3155 3156 3157
	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"
3158
	depends on 64BIT
3159
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3160 3161 3162
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3163 3164 3165 3166 3167 3168 3169 3170 3171 3172 3173
	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
3174
	select ELFCORE
L
Linus Torvalds 已提交
3175

3176 3177
menu "Power management options"

W
Wu Zhangjin 已提交
3178 3179
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3180
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3181

J
Johannes Berg 已提交
3182 3183
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3184
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3185

3186
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3187

L
Linus Torvalds 已提交
3188 3189
endmenu

3190 3191 3192 3193
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3194 3195

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3196 3197
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3198

P
Paul Burton 已提交
3199 3200 3201 3202
source "drivers/cpuidle/Kconfig"

endmenu

3203 3204
source "drivers/firmware/Kconfig"

3205
source "arch/mips/kvm/Kconfig"