Kconfig 82.3 KB
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# SPDX-License-Identifier: GPL-2.0
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config MIPS
	bool
	default y
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	select ARCH_32BIT_OFF_T if !64BIT
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	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
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	select ARCH_HAS_FORTIFY_SOURCE
	select ARCH_HAS_KCOV
	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
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	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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	select ARCH_HAS_UBSAN_SANITIZE_ALL
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	select ARCH_SUPPORTS_UPROBES
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	select ARCH_USE_BUILTIN_BSWAP
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	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
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	select ARCH_USE_QUEUED_RWLOCKS
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	select ARCH_USE_QUEUED_SPINLOCKS
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	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
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	select ARCH_WANT_IPC_PARSE_VERSION
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	select BUILDTIME_TABLE_SORT
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	select CLONE_BACKWARDS
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	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
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	select CPU_PM if CPU_IDLE
	select GENERIC_ATOMIC64 if !64BIT
	select GENERIC_CLOCKEVENTS
	select GENERIC_CMOS_UPDATE
	select GENERIC_CPU_AUTOPROBE
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	select GENERIC_GETTIMEOFDAY
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	select GENERIC_IOMAP
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	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
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	select GENERIC_ISA_DMA if EISA
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	select GENERIC_LIB_ASHLDI3
	select GENERIC_LIB_ASHRDI3
	select GENERIC_LIB_CMPDI2
	select GENERIC_LIB_LSHRDI3
	select GENERIC_LIB_UCMPDI2
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	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
	select GENERIC_SMP_IDLE_THREAD
	select GENERIC_TIME_VSYSCALL
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	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
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	select HANDLE_DOMAIN_IRQ
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	select HAVE_ARCH_COMPILER_H
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	select HAVE_ARCH_JUMP_LABEL
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	select HAVE_ARCH_KGDB
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	select HAVE_ARCH_MMAP_RND_BITS if MMU
	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
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	select HAVE_ARCH_SECCOMP_FILTER
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	select HAVE_ARCH_TRACEHOOK
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	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
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	select HAVE_ASM_MODVERSIONS
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	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
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	select HAVE_CONTEXT_TRACKING
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	select HAVE_TIF_NOHZ
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	select HAVE_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_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
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	select HAVE_EXIT_THREAD
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	select HAVE_FAST_GUP
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	select HAVE_FTRACE_MCOUNT_RECORD
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	select HAVE_FUNCTION_GRAPH_TRACER
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	select HAVE_FUNCTION_TRACER
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	select HAVE_GCC_PLUGINS
	select HAVE_GENERIC_VDSO
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	select HAVE_IDE
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	select HAVE_IOREMAP_PROT
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	select HAVE_IRQ_EXIT_ON_IRQ_STACK
	select HAVE_IRQ_TIME_ACCOUNTING
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
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	select HAVE_MOD_ARCH_SPECIFIC
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	select HAVE_NMI
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	select HAVE_OPROFILE
	select HAVE_PERF_EVENTS
	select HAVE_REGS_AND_STACK_ACCESS_API
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	select HAVE_RSEQ
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	select HAVE_SPARSE_SYSCALL_NR
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	select HAVE_STACKPROTECTOR
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	select HAVE_SYSCALL_TRACEPOINTS
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	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
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	select IRQ_FORCED_THREADING
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	select ISA if EISA
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	select MODULES_USE_ELF_REL if MODULES
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	select MODULES_USE_ELF_RELA if MODULES && 64BIT
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	select PERF_USE_VMALLOC
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	select RTC_LIB
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	select SYSCTL_EXCEPTION_TRACE
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	select VIRT_TO_BUS
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menu "Machine selection"

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

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

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

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

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

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

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

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config MACH_JAZZ
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	bool "Jazz family of machines"
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	select ARC_MEMORY
	select ARC_PROMLIB
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	select ARCH_MIGHT_HAVE_PC_PARPORT
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	select ARCH_MIGHT_HAVE_PC_SERIO
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	select FW_ARC
	select FW_ARC32
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	select ARCH_MAY_HAVE_PC_FDC
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	select CEVT_R4K
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	select CSRC_R4K
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	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
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	select GENERIC_ISA_DMA
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	select HAVE_PCSPKR_PLATFORM
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	select IRQ_MIPS_CPU
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	select I8253
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	select I8259
	select ISA
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	select SYS_HAS_CPU_R4X00
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	select SYS_SUPPORTS_32BIT_KERNEL
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	select SYS_SUPPORTS_64BIT_KERNEL
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	select SYS_SUPPORTS_100HZ
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	help
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	  This a family of machines based on the MIPS R4030 chipset which was
	  used by several vendors to build RISC/os and Windows NT workstations.
	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
	  Olivetti M700-10 workstations.
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config MACH_INGENIC
	bool "Ingenic SoC based machines"
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	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT_UART16550
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	select CPU_SUPPORTS_HUGEPAGES
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	select DMA_NONCOHERENT
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	select IRQ_MIPS_CPU
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	select PINCTRL
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	select GPIOLIB
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	select COMMON_CLK
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	select GENERIC_IRQ_CHIP
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	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
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	select USE_OF
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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
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	bool "Loongson 32-bit family of machines"
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	select SYS_SUPPORTS_ZBOOT
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	help
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	  This enables support for the Loongson-1 family of machines.
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	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).
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config MACH_LOONGSON2EF
	bool "Loongson-2E/F family of machines"
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	select SYS_SUPPORTS_ZBOOT
	help
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	  This enables the support of early Loongson-2E/F family of machines.
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config MACH_LOONGSON64
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	bool "Loongson 64-bit family of machines"
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	select ARCH_SPARSEMEM_ENABLE
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select BOOT_ELF32
	select BOARD_SCACHE
	select CSRC_R4K
	select CEVT_R4K
	select CPU_HAS_WB
	select FORCE_PCI
	select ISA
	select I8259
	select IRQ_MIPS_CPU
	select NR_CPUS_DEFAULT_4
	select USE_GENERIC_EARLY_PRINTK_8250
	select SYS_HAS_CPU_LOONGSON64
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
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	select SYS_SUPPORTS_ZBOOT
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	select ZONE_DMA32
	select NUMA
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	select COMMON_CLK
	select USE_OF
	select BUILTIN_DTB
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	help
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	  This enables the support of Loongson-2/3 family of machines.

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

L
Linus Torvalds 已提交
530
config MIPS_MALTA
531
	bool "MIPS Malta board"
532
	select ARCH_MAY_HAVE_PC_FDC
533
	select ARCH_MIGHT_HAVE_PC_PARPORT
534
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
535
	select BOOT_ELF32
536
	select BOOT_RAW
P
Paul Burton 已提交
537
	select BUILTIN_DTB
538
	select CEVT_R4K
539
	select CLKSRC_MIPS_GIC
540
	select COMMON_CLK
541
	select CSRC_R4K
542
	select DMA_MAYBE_COHERENT
L
Linus Torvalds 已提交
543
	select GENERIC_ISA_DMA
544
	select HAVE_PCSPKR_PLATFORM
545
	select HAVE_PCI
546
	select I8253
L
Linus Torvalds 已提交
547
	select I8259
548
	select IRQ_MIPS_CPU
549
	select MIPS_BONITO64
550
	select MIPS_CPU_SCACHE
551
	select MIPS_GIC
552
	select MIPS_L1_CACHE_SHIFT_6
553
	select MIPS_MSC
554
	select PCI_GT64XXX_PCI0
555
	select SMP_UP if SMP
L
Linus Torvalds 已提交
556
	select SWAP_IO_SPACE
557 558
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
559
	select SYS_HAS_CPU_MIPS32_R3_5
S
Steven J. Hill 已提交
560
	select SYS_HAS_CPU_MIPS32_R5
561
	select SYS_HAS_CPU_MIPS32_R6
562
	select SYS_HAS_CPU_MIPS64_R1
563
	select SYS_HAS_CPU_MIPS64_R2
564
	select SYS_HAS_CPU_MIPS64_R6
565 566
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
567 568
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
569
	select SYS_SUPPORTS_BIG_ENDIAN
S
Steven J. Hill 已提交
570
	select SYS_SUPPORTS_HIGHMEM
571
	select SYS_SUPPORTS_LITTLE_ENDIAN
572
	select SYS_SUPPORTS_MICROMIPS
573
	select SYS_SUPPORTS_MIPS16
T
Tim Anderson 已提交
574
	select SYS_SUPPORTS_MIPS_CMP
575
	select SYS_SUPPORTS_MIPS_CPS
576
	select SYS_SUPPORTS_MULTITHREADING
577
	select SYS_SUPPORTS_RELOCATABLE
578
	select SYS_SUPPORTS_SMARTMIPS
579
	select SYS_SUPPORTS_VPE_LOADER
580
	select SYS_SUPPORTS_ZBOOT
P
Paul Burton 已提交
581
	select USE_OF
582
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
583
	help
584
	  This enables support for the MIPS Technologies Malta evaluation
L
Linus Torvalds 已提交
585 586
	  board.

587 588 589 590 591 592 593 594
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.

595 596 597
config NEC_MARKEINS
	bool "NEC EMMA2RH Mark-eins board"
	select SOC_EMMA2RH
598
	select HAVE_PCI
599 600
	help
	  This enables support for the NEC Electronics Mark-eins boards.
601

602
config MACH_VR41XX
603
	bool "NEC VR4100 series based machines"
604
	select CEVT_R4K
605
	select CSRC_R4K
606
	select SYS_HAS_CPU_VR41XX
607
	select SYS_SUPPORTS_MIPS16
608
	select GPIOLIB
609

610 611 612 613
config NXP_STB220
	bool "NXP STB220 board"
	select SOC_PNX833X
	help
614
	  Support for NXP Semiconductors STB220 Development Board.
615 616 617 618 619 620

config NXP_STB225
	bool "NXP 225 board"
	select SOC_PNX833X
	select SOC_PNX8335
	help
621
	  Support for NXP Semiconductors STB225 Development Board.
622

M
Marc St-Jean 已提交
623 624
config PMC_MSP
	bool "PMC-Sierra MSP chipsets"
625 626
	select CEVT_R4K
	select CSRC_R4K
M
Marc St-Jean 已提交
627 628 629 630 631 632 633 634
	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
635
	select SYS_SUPPORTS_MIPS16
636
	select IRQ_MIPS_CPU
M
Marc St-Jean 已提交
637 638
	select SERIAL_8250
	select SERIAL_8250_CONSOLE
639 640
	select USB_EHCI_BIG_ENDIAN_MMIO
	select USB_EHCI_BIG_ENDIAN_DESC
M
Marc St-Jean 已提交
641 642 643 644 645 646
	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
647 648 649 650 651 652
config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
653
	select IRQ_MIPS_CPU
J
John Crispin 已提交
654 655 656 657 658
	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
659
	select SYS_SUPPORTS_MIPS16
J
John Crispin 已提交
660 661
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
662 663
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER
J
John Crispin 已提交
664

L
Linus Torvalds 已提交
665
config SGI_IP22
666
	bool "SGI IP22 (Indy/Indigo2)"
667
	select ARC_MEMORY
668
	select ARC_PROMLIB
669 670
	select FW_ARC
	select FW_ARC32
671
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
672
	select BOOT_ELF32
673
	select CEVT_R4K
674
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
675
	select DEFAULT_SGI_PARTITION
L
Linus Torvalds 已提交
676
	select DMA_NONCOHERENT
677
	select HAVE_EISA
678
	select I8253
679
	select I8259
L
Linus Torvalds 已提交
680
	select IP22_CPU_SCACHE
681
	select IRQ_MIPS_CPU
682
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
T
Thomas Bogendoerfer 已提交
683 684
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
685
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
686 687 688
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
L
Linus Torvalds 已提交
689
	select SWAP_IO_SPACE
690 691
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
692
	select SYS_HAS_EARLY_PRINTK
693 694
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
695
	select SYS_SUPPORTS_BIG_ENDIAN
696
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
697 698 699 700 701 702
	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
703
	bool "SGI IP27 (Origin200/2000)"
704
	select ARCH_HAS_PHYS_TO_DMA
705
	select ARCH_SPARSEMEM_ENABLE
706 707
	select FW_ARC
	select FW_ARC64
708
	select ARC_CMDLINE_ONLY
709
	select BOOT_ELF64
T
Thomas Bogendoerfer 已提交
710
	select DEFAULT_SGI_PARTITION
711
	select SYS_HAS_EARLY_PRINTK
712
	select HAVE_PCI
713
	select IRQ_MIPS_CPU
714
	select IRQ_DOMAIN_HIERARCHY
715
	select NR_CPUS_DEFAULT_64
716 717
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
718
	select SYS_HAS_CPU_R10000
719
	select SYS_SUPPORTS_64BIT_KERNEL
720
	select SYS_SUPPORTS_BIG_ENDIAN
721
	select SYS_SUPPORTS_NUMA
722
	select SYS_SUPPORTS_SMP
723
	select MIPS_L1_CACHE_SHIFT_7
L
Linus Torvalds 已提交
724 725 726 727 728
	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
729
config SGI_IP28
730
	bool "SGI IP28 (Indigo2 R10k)"
731
	select ARC_MEMORY
732
	select ARC_PROMLIB
733 734
	select FW_ARC
	select FW_ARC64
735
	select ARCH_MIGHT_HAVE_PC_SERIO
T
Thomas Bogendoerfer 已提交
736 737 738 739 740 741
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
742
	select IRQ_MIPS_CPU
743
	select HAVE_EISA
T
Thomas Bogendoerfer 已提交
744 745 746 747
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
748
	select SGI_HAS_HAL2
T
Thomas Bogendoerfer 已提交
749 750 751 752 753
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
754
	select SYS_HAS_EARLY_PRINTK
T
Thomas Bogendoerfer 已提交
755 756
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
757
	select MIPS_L1_CACHE_SHIFT_7
758 759 760
	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
761

762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788
config SGI_IP30
	bool "SGI IP30 (Octane/Octane2)"
	select ARCH_HAS_PHYS_TO_DMA
	select FW_ARC
	select FW_ARC64
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K if SMP
	select ZONE_DMA32
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select IRQ_DOMAIN_HIERARCHY
	select NR_CPUS_DEFAULT_2
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_R10000
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_SMP
	select MIPS_L1_CACHE_SHIFT_7
	select ARC_MEMORY
	help
	  These are the SGI Octane and Octane2 graphics workstations.  To
	  compile a Linux kernel that runs on these, say Y here.

L
Linus Torvalds 已提交
789
config SGI_IP32
790
	bool "SGI IP32 (O2)"
791 792
	select ARC_MEMORY
	select ARC_PROMLIB
793
	select ARCH_HAS_PHYS_TO_DMA
794 795
	select FW_ARC
	select FW_ARC32
L
Linus Torvalds 已提交
796
	select BOOT_ELF32
797
	select CEVT_R4K
798
	select CSRC_R4K
L
Linus Torvalds 已提交
799
	select DMA_NONCOHERENT
800
	select HAVE_PCI
801
	select IRQ_MIPS_CPU
L
Linus Torvalds 已提交
802 803
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
804 805 806
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
R
Ralf Baechle 已提交
807
	select SYS_HAS_CPU_NEVADA
808
	select SYS_SUPPORTS_64BIT_KERNEL
809 810
	select SYS_SUPPORTS_BIG_ENDIAN
	help
811
	  If you want this kernel to run on SGI O2 workstation, say Y here.
L
Linus Torvalds 已提交
812

813 814
config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
A
Andrew Isaacson 已提交
815
	select BOOT_ELF32
816
	select SIBYTE_BCM1120
A
Andrew Isaacson 已提交
817
	select SWAP_IO_SPACE
818
	select SYS_HAS_CPU_SB1
A
Andrew Isaacson 已提交
819 820 821
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

822 823
config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
824
	select BOOT_ELF32
825
	select SIBYTE_BCM1120
826
	select SWAP_IO_SPACE
827
	select SYS_HAS_CPU_SB1
828
	select SYS_SUPPORTS_BIG_ENDIAN
829
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
830

831 832
config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
833
	select BOOT_ELF32
834
	select SIBYTE_BCM1125
835
	select SWAP_IO_SPACE
836
	select SYS_HAS_CPU_SB1
837
	select SYS_SUPPORTS_BIG_ENDIAN
838
	select SYS_SUPPORTS_HIGHMEM
839
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
840

841
config SIBYTE_RHONE
842
	bool "Sibyte BCM91125E-Rhone"
843 844 845
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
846
	select SYS_HAS_CPU_SB1
847 848
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
849

850 851
config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
852
	select BOOT_ELF32
853
	select HAVE_PATA_PLATFORM
854
	select SIBYTE_SB1250
855
	select SWAP_IO_SPACE
856
	select SYS_HAS_CPU_SB1
857
	select SYS_SUPPORTS_BIG_ENDIAN
858
	select SYS_SUPPORTS_HIGHMEM
P
Pete Popov 已提交
859
	select SYS_SUPPORTS_LITTLE_ENDIAN
860
	select ZONE_DMA32 if 64BIT
861
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
P
Pete Popov 已提交
862

863 864
config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
865
	select BOOT_ELF32
866
	select HAVE_PATA_PLATFORM
867 868
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
869
	select SYS_HAS_CPU_SB1
870 871 872
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
873
	select ZONE_DMA32 if 64BIT
L
Linus Torvalds 已提交
874

875 876
config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
877 878 879
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
880
	select SYS_HAS_CPU_SB1
881 882
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
883
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
884

885 886
config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
887
	select BOOT_ELF32
888 889
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
890
	select SWAP_IO_SPACE
891
	select SYS_HAS_CPU_SB1
892
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
893
	select SYS_SUPPORTS_HIGHMEM
894
	select SYS_SUPPORTS_LITTLE_ENDIAN
895
	select ZONE_DMA32 if 64BIT
896
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
L
Linus Torvalds 已提交
897

898 899
config SNI_RM
	bool "SNI RM200/300/400"
900 901
	select ARC_MEMORY
	select ARC_PROMLIB
902 903
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
P
Paul Bolle 已提交
904
	select FW_SNIPROM if CPU_BIG_ENDIAN
905
	select ARCH_MAY_HAVE_PC_FDC
906
	select ARCH_MIGHT_HAVE_PC_PARPORT
907
	select ARCH_MIGHT_HAVE_PC_SERIO
L
Linus Torvalds 已提交
908
	select BOOT_ELF32
909
	select CEVT_R4K
910
	select CSRC_R4K
T
Thomas Bogendoerfer 已提交
911
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
L
Linus Torvalds 已提交
912 913
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
914
	select HAVE_EISA
915
	select HAVE_PCSPKR_PLATFORM
916
	select HAVE_PCI
917
	select IRQ_MIPS_CPU
918
	select I8253
L
Linus Torvalds 已提交
919 920
	select I8259
	select ISA
921
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
922
	select SYS_HAS_CPU_R4X00
923
	select SYS_HAS_CPU_R5000
924
	select SYS_HAS_CPU_R10000
925
	select R5000_CPU_SCACHE
926
	select SYS_HAS_EARLY_PRINTK
927
	select SYS_SUPPORTS_32BIT_KERNEL
928
	select SYS_SUPPORTS_64BIT_KERNEL
929
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
930
	select SYS_SUPPORTS_HIGHMEM
931
	select SYS_SUPPORTS_LITTLE_ENDIAN
L
Linus Torvalds 已提交
932
	help
933 934
	  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
935 936 937
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

938 939
config MACH_TX39XX
	bool "Toshiba TX39 series based machines"
940

941 942
config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
943

944 945 946 947 948
config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
949
	select HAVE_PCI
950
	select IRQ_MIPS_CPU
951 952 953 954 955
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
956
	select GPIOLIB
957
	select MIPS_L1_CACHE_SHIFT_4
958 959 960 961
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

962 963
config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
964
	select CEVT_R4K
965
	select ARCH_HAS_PHYS_TO_DMA
966
	select HAVE_RAPIDIO
967
	select PHYS_ADDR_T_64BIT
968 969
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
R
Ralf Baechle 已提交
970
	select EDAC_SUPPORT
971
	select EDAC_ATOMIC_SCRUB
972 973
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
974
	select SYS_HAS_EARLY_PRINTK
975
	select SYS_HAS_CPU_CAVIUM_OCTEON
976
	select HAVE_PCI
977 978 979
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
D
David Daney 已提交
980
	select ZONE_DMA32
981
	select HOLES_IN_ZONE
982
	select GPIOLIB
983 984 985
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
986 987
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
988
	select BUILTIN_DTB
989
	select MTD_COMPLEX_MAPPINGS
990
	select SWIOTLB
S
Steven J. Hill 已提交
991
	select SYS_SUPPORTS_RELOCATABLE
992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004
	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.

1005 1006 1007 1008 1009 1010
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
1011
	select HAVE_PCI
1012 1013 1014
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1015
	select PHYS_ADDR_T_64BIT
1016 1017 1018 1019 1020
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
1021
	select IRQ_MIPS_CPU
1022
	select ZONE_DMA32 if 64BIT
1023 1024
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1025 1026
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1027 1028 1029 1030
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

1031 1032 1033 1034 1035 1036
config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
1037
	select HAVE_PCI
1038 1039
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
1040
	select PHYS_ADDR_T_64BIT
1041
	select GPIOLIB
1042 1043 1044 1045 1046 1047
	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
1048
	select IRQ_MIPS_CPU
1049
	select ZONE_DMA32 if 64BIT
1050 1051
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
1052
	select USE_OF
1053 1054
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
1055 1056 1057 1058
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071
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
1072
	select HAVE_PCI
1073 1074 1075 1076
	select SWAP_IO_SPACE
	help
	  This option supports guest running under ????

1077
endchoice
L
Linus Torvalds 已提交
1078

R
Ralf Baechle 已提交
1079
source "arch/mips/alchemy/Kconfig"
1080
source "arch/mips/ath25/Kconfig"
1081
source "arch/mips/ath79/Kconfig"
1082
source "arch/mips/bcm47xx/Kconfig"
1083
source "arch/mips/bcm63xx/Kconfig"
1084
source "arch/mips/bmips/Kconfig"
1085
source "arch/mips/generic/Kconfig"
1086
source "arch/mips/jazz/Kconfig"
1087
source "arch/mips/jz4740/Kconfig"
1088
source "arch/mips/lantiq/Kconfig"
1089
source "arch/mips/lasat/Kconfig"
1090
source "arch/mips/pic32/Kconfig"
1091
source "arch/mips/pistachio/Kconfig"
R
Ralf Baechle 已提交
1092
source "arch/mips/pmcs-msp71xx/Kconfig"
J
John Crispin 已提交
1093
source "arch/mips/ralink/Kconfig"
1094
source "arch/mips/sgi-ip27/Kconfig"
1095
source "arch/mips/sibyte/Kconfig"
A
Atsushi Nemoto 已提交
1096
source "arch/mips/txx9/Kconfig"
1097
source "arch/mips/vr41xx/Kconfig"
1098
source "arch/mips/cavium-octeon/Kconfig"
1099
source "arch/mips/loongson2ef/Kconfig"
1100 1101
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
1102
source "arch/mips/netlogic/Kconfig"
1103
source "arch/mips/paravirt/Kconfig"
1104

1105 1106
endmenu

1107 1108 1109 1110
config GENERIC_HWEIGHT
	bool
	default y

L
Linus Torvalds 已提交
1111 1112 1113 1114
config GENERIC_CALIBRATE_DELAY
	bool
	default y

1115
config SCHED_OMIT_FRAME_POINTER
1116 1117 1118
	bool
	default y

L
Linus Torvalds 已提交
1119 1120 1121
#
# Select some configuration options automatically based on user selections.
#
1122
config FW_ARC
L
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1123 1124
	bool

1125 1126 1127
config ARCH_MAY_HAVE_PC_FDC
	bool

M
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1128 1129 1130
config BOOT_RAW
	bool

1131 1132 1133
config CEVT_BCM1480
	bool

1134 1135 1136
config CEVT_DS1287
	bool

1137 1138 1139
config CEVT_GT641XX
	bool

1140 1141 1142
config CEVT_R4K
	bool

1143 1144 1145
config CEVT_SB1250
	bool

1146 1147 1148
config CEVT_TXX9
	bool

1149 1150 1151
config CSRC_BCM1480
	bool

1152 1153 1154
config CSRC_IOASIC
	bool

1155 1156 1157
config CSRC_R4K
	bool

1158 1159 1160
config CSRC_SB1250
	bool

1161 1162 1163
config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

1164
config GPIO_TXX9
1165
	select GPIOLIB
1166 1167
	bool

1168
config FW_CFE
1169 1170
	bool

R
Ralf Baechle 已提交
1171 1172 1173
config ARCH_SUPPORTS_UPROBES
	bool

1174
config DMA_MAYBE_COHERENT
1175
	select ARCH_HAS_DMA_COHERENCE_H
1176 1177 1178
	select DMA_NONCOHERENT
	bool

1179 1180
config DMA_PERDEV_COHERENT
	bool
1181
	select ARCH_HAS_SETUP_DMA_OPS
1182
	select DMA_NONCOHERENT
1183

1184 1185
config DMA_NONCOHERENT
	bool
1186 1187 1188 1189 1190 1191 1192
	#
	# 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.
	#
1193
	select ARCH_HAS_DMA_WRITE_COMBINE
1194
	select ARCH_HAS_DMA_PREP_COHERENT
1195
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1196
	select ARCH_HAS_DMA_SET_UNCACHED
1197
	select DMA_NONCOHERENT_MMAP
1198
	select DMA_NONCOHERENT_CACHE_SYNC
1199
	select NEED_DMA_MAP_STATE
1200

1201
config SYS_HAS_EARLY_PRINTK
L
Linus Torvalds 已提交
1202 1203
	bool

1204
config SYS_SUPPORTS_HOTPLUG_CPU
1205 1206
	bool

L
Linus Torvalds 已提交
1207 1208 1209 1210 1211 1212
config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

1213 1214 1215
config MIPS_NILE4
	bool

1216 1217 1218
config SYNC_R4K
	bool

1219 1220 1221
config MIPS_MACHINE
	def_bool n

1222
config NO_IOPORT_MAP
1223 1224
	def_bool n

1225
config GENERIC_CSUM
1226
	def_bool CPU_NO_LOAD_STORE_LR
1227

1228 1229 1230
config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1231
	select ISA_DMA_API
1232

1233 1234
config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
1235
	select GENERIC_ISA_DMA
1236

1237 1238 1239 1240 1241 1242 1243 1244 1245
config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

1246 1247 1248
config ISA_DMA_API
	bool

1249 1250 1251
config HOLES_IN_ZONE
	bool

1252 1253 1254
config SYS_SUPPORTS_RELOCATABLE
	bool
	help
1255 1256 1257
	  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.
1258

D
David Daney 已提交
1259 1260 1261 1262 1263 1264 1265 1266 1267
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


1268
#
M
Masanari Iida 已提交
1269
# Endianness selection.  Sufficiently obscure so many users don't know what to
1270 1271 1272 1273
# answer,so we try hard to limit the available choices.  Also the use of a
# choice statement should be more obvious to the user.
#
choice
M
Masanari Iida 已提交
1274
	prompt "Endianness selection"
L
Linus Torvalds 已提交
1275 1276
	help
	  Some MIPS machines can be configured for either little or big endian
1277
	  byte order. These modes require different kernels and a different
M
Matt LaPlante 已提交
1278
	  Linux distribution.  In general there is one preferred byteorder for a
1279
	  particular system but some systems are just as commonly used in the
1280
	  one or the other endianness.
1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291

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

1292 1293 1294
config EXPORT_UASM
	bool

1295 1296 1297
config SYS_SUPPORTS_APM_EMULATION
	bool

1298 1299 1300 1301 1302
config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool
L
Linus Torvalds 已提交
1303

1304 1305
config SYS_SUPPORTS_HUGETLBFS
	bool
1306
	depends on CPU_SUPPORTS_HUGEPAGES
1307 1308
	default y

1309 1310 1311
config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

L
Linus Torvalds 已提交
1312 1313 1314
config IRQ_CPU_RM7K
	bool

M
Marc St-Jean 已提交
1315 1316 1317 1318 1319 1320
config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

1321 1322 1323
config IRQ_TXX9
	bool

Y
Yoichi Yuasa 已提交
1324 1325 1326
config IRQ_GT641XX
	bool

1327
config PCI_GT64XXX_PCI0
L
Linus Torvalds 已提交
1328 1329
	bool

1330 1331 1332
config PCI_XTALK_BRIDGE
	bool

M
Marc St-Jean 已提交
1333 1334 1335
config NO_EXCEPT_FILL
	bool

1336 1337 1338 1339 1340
config SOC_EMMA2RH
	bool
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
1341
	select IRQ_MIPS_CPU
1342 1343 1344 1345 1346 1347
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R5500
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN

1348 1349 1350 1351
config SOC_PNX833X
	bool
	select CEVT_R4K
	select CSRC_R4K
1352
	select IRQ_MIPS_CPU
1353 1354 1355 1356 1357
	select DMA_NONCOHERENT
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
1358
	select SYS_SUPPORTS_MIPS16
1359 1360 1361 1362 1363 1364
	select CPU_MIPSR2_IRQ_VI

config SOC_PNX8335
	bool
	select SOC_PNX833X

1365 1366 1367
config MIPS_SPRAM
	bool

L
Linus Torvalds 已提交
1368 1369 1370
config SWAP_IO_SPACE
	bool

T
Thomas Bogendoerfer 已提交
1371 1372 1373
config SGI_HAS_INDYDOG
	bool

1374 1375 1376
config SGI_HAS_HAL2
	bool

T
Thomas Bogendoerfer 已提交
1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391
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

1392
config FW_ARC32
1393 1394
	bool

P
Paul Bolle 已提交
1395
config FW_SNIPROM
1396 1397
	bool

L
Linus Torvalds 已提交
1398 1399 1400
config BOOT_ELF32
	bool

1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412
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

L
Linus Torvalds 已提交
1413 1414
config MIPS_L1_CACHE_SHIFT
	int
1415
	default "7" if MIPS_L1_CACHE_SHIFT_7
1416 1417 1418
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
L
Linus Torvalds 已提交
1419 1420 1421 1422 1423
	default "5"

config HAVE_STD_PC_SERIAL_PORT
	bool

1424 1425 1426
config ARC_CMDLINE_ONLY
	bool

L
Linus Torvalds 已提交
1427 1428
config ARC_CONSOLE
	bool "ARC console support"
T
Thomas Bogendoerfer 已提交
1429
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
L
Linus Torvalds 已提交
1430 1431 1432 1433 1434 1435 1436

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

1437
config FW_ARC64
L
Linus Torvalds 已提交
1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

J
Jiaxun Yang 已提交
1449
config CPU_LOONGSON64
1450
	bool "Loongson 64-bit CPU"
J
Jiaxun Yang 已提交
1451
	depends on SYS_HAS_CPU_LOONGSON64
1452
	select ARCH_HAS_PHYS_TO_DMA
1453 1454
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
1455 1456 1457
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
1458
	select CPU_SUPPORTS_MSA
1459 1460
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
1461 1462
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
1463
	select MIPS_ASID_BITS_VARIABLE
1464
	select MIPS_PGD_C0_CONTEXT
1465
	select MIPS_L1_CACHE_SHIFT_6
1466
	select GPIOLIB
1467
	select SWIOTLB
1468
	help
1469 1470 1471 1472 1473 1474 1475 1476
		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
		cores implements the MIPS64R2 instruction set with many extensions,
		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
		Loongson-2E/2F is not covered here and will be removed in future.

config LOONGSON3_ENHANCEMENT
	bool "New Loongson-3 CPU Enhancements"
1477
	default n
J
Jiaxun Yang 已提交
1478
	depends on CPU_LOONGSON64
1479
	help
1480
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1481
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
J
Jiaxun Yang 已提交
1482
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1483 1484 1485 1486 1487 1488
	  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
1489
	  new Loongson-3 machines only, please say 'Y' here.
1490

1491
config CPU_LOONGSON3_WORKAROUNDS
1492
	bool "Old Loongson-3 LLSC Workarounds"
1493
	default y if SMP
J
Jiaxun Yang 已提交
1494
	depends on CPU_LOONGSON64
1495
	help
1496
	  Loongson-3 processors have the llsc issues which require workarounds.
1497 1498
	  Without workarounds the system may hang unexpectedly.

1499
	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1500 1501 1502 1503 1504 1505
	  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.

1506 1507 1508
config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
J
Jiaxun Yang 已提交
1509
	select CPU_LOONGSON2EF
1510 1511 1512 1513
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

L
Lucas De Marchi 已提交
1514
	  It has an internal FPGA northbridge, which is compatible to
1515 1516 1517 1518 1519
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
J
Jiaxun Yang 已提交
1520
	select CPU_LOONGSON2EF
1521
	select GPIOLIB
1522 1523 1524 1525 1526 1527 1528 1529
	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.

1530 1531 1532
config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
1533
	select CPU_LOONGSON32
1534
	select LEDS_GPIO_REGISTER
1535 1536
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1537 1538
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
1539

Y
Yang Ling 已提交
1540 1541 1542
config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
1543
	select CPU_LOONGSON32
Y
Yang Ling 已提交
1544 1545 1546
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1547 1548
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.
Y
Yang Ling 已提交
1549

1550 1551
config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
1552
	depends on SYS_HAS_CPU_MIPS32_R1
1553
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1554
	select CPU_SUPPORTS_32BIT_KERNEL
1555
	select CPU_SUPPORTS_HIGHMEM
R
Ralf Baechle 已提交
1556
	help
1557
	  Choose this option to build a kernel for release 1 or later of the
R
Ralf Baechle 已提交
1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568
	  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"
1569
	depends on SYS_HAS_CPU_MIPS32_R2
R
Ralf Baechle 已提交
1570
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1571
	select CPU_SUPPORTS_32BIT_KERNEL
1572
	select CPU_SUPPORTS_HIGHMEM
P
Paul Burton 已提交
1573
	select CPU_SUPPORTS_MSA
1574
	select HAVE_KVM
1575
	help
1576
	  Choose this option to build a kernel for release 2 or later of the
1577 1578 1579 1580 1581
	  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.

1582
config CPU_MIPS32_R6
1583
	bool "MIPS32 Release 6"
1584 1585
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
1586
	select CPU_NO_LOAD_STORE_LR
1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597
	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.

1598 1599
config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
1600
	depends on SYS_HAS_CPU_MIPS64_R1
R
Ralf Baechle 已提交
1601
	select CPU_HAS_PREFETCH
1602 1603
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1604
	select CPU_SUPPORTS_HIGHMEM
1605
	select CPU_SUPPORTS_HUGEPAGES
1606 1607 1608 1609 1610 1611
	help
	  Choose this option to build a kernel for release 1 or later of the
	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
	  MIPS processor are based on a MIPS64 processor.  If you know the
	  specific type of processor in your system, choose those that one
	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
R
Ralf Baechle 已提交
1612 1613 1614 1615 1616 1617 1618
	  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"
1619
	depends on SYS_HAS_CPU_MIPS64_R2
R
Ralf Baechle 已提交
1620
	select CPU_HAS_PREFETCH
R
Ralf Baechle 已提交
1621 1622
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1623
	select CPU_SUPPORTS_HIGHMEM
1624
	select CPU_SUPPORTS_HUGEPAGES
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1625
	select CPU_SUPPORTS_MSA
1626
	select HAVE_KVM
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1627 1628 1629 1630 1631 1632
	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.
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1634
config CPU_MIPS64_R6
1635
	bool "MIPS64 Release 6"
1636 1637
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
1638
	select CPU_NO_LOAD_STORE_LR
1639 1640 1641
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1642
	select CPU_SUPPORTS_HUGEPAGES
1643
	select CPU_SUPPORTS_MSA
1644
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1645
	select HAVE_KVM
1646 1647 1648 1649 1650 1651
	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.

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1652 1653
config CPU_R3000
	bool "R3000"
1654
	depends on SYS_HAS_CPU_R3000
1655
	select CPU_HAS_WB
1656
	select CPU_R3K_TLB
1657
	select CPU_SUPPORTS_32BIT_KERNEL
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	select CPU_SUPPORTS_HIGHMEM
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	help
	  Please make sure to pick the right CPU type. Linux/MIPS is not
	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
	  *not* work on R4000 machines and vice versa.  However, since most
	  of the supported machines have an R4000 (or similar) CPU, R4x00
	  might be a safe bet.  If the resulting kernel does not work,
	  try to recompile with R3000.

config CPU_TX39XX
	bool "R39XX"
1669
	depends on SYS_HAS_CPU_TX39XX
1670
	select CPU_SUPPORTS_32BIT_KERNEL
1671
	select CPU_R3K_TLB
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config CPU_VR41XX
	bool "R41xx"
1675
	depends on SYS_HAS_CPU_VR41XX
1676 1677
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1678
	help
1679
	  The options selects support for the NEC VR4100 series of processors.
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	  Only choose this option if you have one of these processors as a
	  kernel built with this option will not run on any other type of
	  processor or vice versa.

config CPU_R4X00
	bool "R4x00"
1686
	depends on SYS_HAS_CPU_R4X00
1687 1688
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1689
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R4000-series processors other than 4300, including
	  the R4000, R4400, R4600, and 4700.

config CPU_TX49XX
	bool "R49XX"
1696
	depends on SYS_HAS_CPU_TX49XX
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	select CPU_HAS_PREFETCH
1698 1699
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1700
	select CPU_SUPPORTS_HUGEPAGES
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1701 1702 1703

config CPU_R5000
	bool "R5000"
1704
	depends on SYS_HAS_CPU_R5000
1705 1706
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1707
	select CPU_SUPPORTS_HUGEPAGES
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	help
	  MIPS Technologies R5000-series processors other than the Nevada.

1711 1712 1713 1714 1715
config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1716
	select CPU_SUPPORTS_HUGEPAGES
1717 1718 1719 1720
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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1721 1722
config CPU_NEVADA
	bool "RM52xx"
1723
	depends on SYS_HAS_CPU_NEVADA
1724 1725
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
1726
	select CPU_SUPPORTS_HUGEPAGES
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1727 1728 1729 1730 1731
	help
	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.

config CPU_R10000
	bool "R10000"
1732
	depends on SYS_HAS_CPU_R10000
1733
	select CPU_HAS_PREFETCH
1734 1735
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1736
	select CPU_SUPPORTS_HIGHMEM
1737
	select CPU_SUPPORTS_HUGEPAGES
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1738 1739 1740 1741 1742
	help
	  MIPS Technologies R10000-series processors.

config CPU_RM7000
	bool "RM7000"
1743
	depends on SYS_HAS_CPU_RM7000
1744
	select CPU_HAS_PREFETCH
1745 1746
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
R
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1747
	select CPU_SUPPORTS_HIGHMEM
1748
	select CPU_SUPPORTS_HUGEPAGES
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1749 1750 1751

config CPU_SB1
	bool "SB1"
1752
	depends on SYS_HAS_CPU_SB1
1753 1754
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
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1755
	select CPU_SUPPORTS_HIGHMEM
1756
	select CPU_SUPPORTS_HUGEPAGES
1757
	select WEAK_ORDERING
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1758

1759 1760
config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
1761
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1762 1763 1764 1765
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
1766
	select CPU_SUPPORTS_HUGEPAGES
1767 1768
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1769
	select MIPS_L1_CACHE_SHIFT_7
1770
	select HAVE_KVM
1771 1772 1773 1774 1775 1776
	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.

1777 1778 1779 1780
config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
1781
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1782 1783 1784 1785 1786
	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
1787
	select IRQ_MIPS_CPU
1788 1789
	select SWAP_IO_SPACE
	select WEAK_ORDERING
1790
	select CPU_SUPPORTS_HIGHMEM
1791
	select CPU_HAS_PREFETCH
1792 1793
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
1794
	help
1795
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1796

1797 1798 1799 1800 1801 1802
config CPU_XLR
	bool "Netlogic XLR SoC"
	depends on SYS_HAS_CPU_XLR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1803
	select CPU_SUPPORTS_HUGEPAGES
1804 1805 1806 1807
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.
1808 1809 1810 1811 1812 1813 1814 1815 1816 1817

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
1818
	select CPU_MIPSR2
1819
	select CPU_SUPPORTS_HUGEPAGES
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1820
	select MIPS_ASID_BITS_VARIABLE
1821 1822
	help
	  Netlogic Microsystems XLP processors.
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1823 1824
endchoice

1825 1826 1827
config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
1828
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R6
1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844
	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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1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861
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
1862
	select PHYS_ADDR_T_64BIT
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1863 1864 1865 1866 1867 1868 1869 1870 1871
	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.

1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898
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

1899 1900 1901 1902
config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
1903
	select HAVE_KERNEL_LZ4
1904
	select HAVE_KERNEL_LZMA
1905
	select HAVE_KERNEL_LZO
1906
	select HAVE_KERNEL_XZ
1907 1908 1909 1910 1911

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

1912 1913 1914 1915
config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

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config CPU_LOONGSON2EF
1917 1918 1919 1920
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1921
	select CPU_SUPPORTS_HUGEPAGES
1922
	select ARCH_HAS_PHYS_TO_DMA
1923

1924
config CPU_LOONGSON32
1925 1926
	bool
	select CPU_MIPS32
1927
	select CPU_MIPSR2
1928 1929 1930
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
1931
	select CPU_SUPPORTS_CPUFREQ
1932

1933
config CPU_BMIPS32_3300
1934
	select SMP_UP if SMP
1935
	bool
1936 1937 1938 1939 1940 1941 1942 1943

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
1944
	select MIPS_L1_CACHE_SHIFT_6
1945 1946
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1947
	select CPU_HAS_RIXI
1948 1949 1950 1951

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
1952
	select MIPS_L1_CACHE_SHIFT_7
1953 1954
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
1955
	select CPU_HAS_RIXI
1956

J
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1957
config SYS_HAS_CPU_LOONGSON64
1958 1959
	bool
	select CPU_SUPPORTS_CPUFREQ
1960
	select CPU_HAS_RIXI
1961

1962
config SYS_HAS_CPU_LOONGSON2E
1963 1964
	bool

1965 1966
config SYS_HAS_CPU_LOONGSON2F
	bool
1967 1968
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1969

1970 1971 1972
config SYS_HAS_CPU_LOONGSON1B
	bool

Y
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1973 1974 1975
config SYS_HAS_CPU_LOONGSON1C
	bool

1976 1977 1978 1979 1980 1981
config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

1982 1983 1984
config SYS_HAS_CPU_MIPS32_R3_5
	bool

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1985 1986
config SYS_HAS_CPU_MIPS32_R5
	bool
1987
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
S
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1988

1989 1990
config SYS_HAS_CPU_MIPS32_R6
	bool
1991
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1992

1993 1994 1995 1996 1997 1998
config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

1999 2000
config SYS_HAS_CPU_MIPS64_R6
	bool
2001
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2002

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
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

2021 2022 2023
config SYS_HAS_CPU_R5500
	bool

2024 2025 2026 2027 2028
config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
2029
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2030 2031 2032 2033 2034 2035 2036

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

2037 2038 2039
config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

2040
config SYS_HAS_CPU_BMIPS
2041 2042
	bool

2043
config SYS_HAS_CPU_BMIPS32_3300
2044
	bool
2045
	select SYS_HAS_CPU_BMIPS
2046 2047 2048

config SYS_HAS_CPU_BMIPS4350
	bool
2049
	select SYS_HAS_CPU_BMIPS
2050 2051 2052

config SYS_HAS_CPU_BMIPS4380
	bool
2053
	select SYS_HAS_CPU_BMIPS
2054 2055 2056

config SYS_HAS_CPU_BMIPS5000
	bool
2057
	select SYS_HAS_CPU_BMIPS
2058
	select ARCH_HAS_SYNC_DMA_FOR_CPU
2059

2060 2061 2062
config SYS_HAS_CPU_XLR
	bool

2063 2064 2065
config SYS_HAS_CPU_XLP
	bool

2066 2067 2068 2069
#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
2070 2071
config WEAK_ORDERING
	bool
2072 2073 2074 2075 2076 2077 2078

#
# 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
2079 2080 2081
endmenu

#
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2082
# These two indicate any level of the MIPS32 and MIPS64 architecture
2083 2084 2085
#
config CPU_MIPS32
	bool
2086
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6
2087 2088 2089

config CPU_MIPS64
	bool
2090
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6
2091 2092

#
2093
# These indicate the revision of the architecture
2094 2095 2096 2097 2098 2099 2100
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
2101
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2102
	select CPU_HAS_RIXI
2103
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2104
	select MIPS_SPRAM
2105

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

2116 2117 2118 2119 2120 2121 2122 2123 2124 2125
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.

2126 2127 2128
config EVA
	bool

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2129 2130 2131
config XPA
	bool

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

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

2158 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173
menu "Kernel type"

choice
	prompt "Kernel code model"
	help
	  You should only select this option if you have a workload that
	  actually benefits from 64-bit processing or if your machine has
	  large memory.  You will only be presented a single option in this
	  menu if your system does not support both 32-bit and 64-bit kernels.

config 32BIT
	bool "32-bit kernel"
	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
	select TRAD_SIGNALS
	help
	  Select this option if you want to build a 32-bit kernel.
2174

2175 2176 2177 2178 2179 2180 2181 2182
config 64BIT
	bool "64-bit kernel"
	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
	help
	  Select this option if you want to build a 64-bit kernel.

endchoice

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

2190 2191
config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
2192
	depends on KVM_GUEST
2193
	default 100
2194
	help
2195 2196 2197
	  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.
2198

2199 2200 2201 2202
config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
2203 2204 2205 2206 2207 2208 2209
	  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.

2210 2211
	  If unsure, say N.

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choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
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	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
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	help
2220 2221 2222 2223
	  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"
2227
	depends on CPU_CAVIUM_OCTEON
2228
	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
2232 2233
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.
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config PAGE_SIZE_16KB
	bool "16kB"
2237
	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 16kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
2241 2242
	  all non-R3000 family processors.  Note that you will need a suitable
	  Linux distribution to support this.
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2244 2245 2246
config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
2247
	depends on !MIPS_VA_BITS_48
2248 2249 2250 2251 2252 2253
	help
	  Using 32kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on cnMIPS cores.  Note that you will need a suitable Linux
	  distribution to support this.

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config PAGE_SIZE_64KB
	bool "64kB"
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	depends on !CPU_R3000 && !CPU_TX39XX
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	help
	  Using 64kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available on
	  all non-R3000 family processor.  Not that at the time of this
2261
	  writing this option is still high experimental.
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endchoice

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

2296 2297 2298 2299 2300 2301 2302
#
# 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
2320
	bool
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2322 2323
config CPU_GENERIC_DUMP_TLB
	bool
2324
	default y if !(CPU_R3000 || CPU_TX39XX)
2325

2326
config MIPS_FP_SUPPORT
2327 2328 2329 2330 2331 2332 2333 2334 2335 2336 2337 2338 2339
	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.
2340

2341 2342
config CPU_R2300_FPU
	bool
2343
	depends on MIPS_FP_SUPPORT
2344 2345
	default y if CPU_R3000 || CPU_TX39XX

2346 2347 2348
config CPU_R3K_TLB
	bool

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config CPU_R4K_FPU
	bool
2351
	depends on MIPS_FP_SUPPORT
2352
	default y if !CPU_R2300_FPU
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2354 2355
config CPU_R4K_CACHE_TLB
	bool
2356
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2357

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config MIPS_MT_SMP
2359
	bool "MIPS MT SMP support (1 TC on each available VPE)"
2360
	default y
2361
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2362
	select CPU_MIPSR2_IRQ_VI
2363
	select CPU_MIPSR2_IRQ_EI
2364
	select SYNC_R4K
2365
	select MIPS_MT
2366
	select SMP
2367
	select SMP_UP
2368 2369
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
2370
	select MIPS_PERF_SHARED_TC_COUNTERS
2371
	help
2372 2373 2374 2375 2376
	  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>.
2377

2378 2379 2380
config MIPS_MT
	bool

2381 2382 2383 2384 2385 2386 2387 2388 2389 2390 2391 2392
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

2393 2394 2395
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
2400

2401 2402
config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
2403
	depends on CPU_MIPSR6
2404
	depends on MIPS_FP_SUPPORT
2405 2406 2407 2408
	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
2409
	  default. You can enable it using the 'mipsr2emu' kernel option.
2410 2411 2412
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

2413 2414 2415 2416 2417 2418 2419
config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

2420 2421
config MIPS_VPE_LOADER
	bool "VPE loader support."
2422
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2423 2424 2425 2426 2427 2428
	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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2430 2431 2432 2433 2434
config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

2435 2436 2437 2438 2439
config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450
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
2451 2452
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER
2453

2454 2455 2456 2457 2458
config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

2459 2460 2461 2462 2463
config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

2464
config MIPS_CMP
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	bool "MIPS CMP framework support (DEPRECATED)"
2466
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2467
	select SMP
2468
	select SYNC_R4K
2469
	select SYS_SUPPORTS_SMP
2470 2471 2472
	select WEAK_ORDERING
	default n
	help
2473 2474 2475
	  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.
2476

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

2480 2481
config MIPS_CPS
	bool "MIPS Coherent Processing System support"
2482
	depends on SYS_SUPPORTS_MIPS_CPS
2483
	select MIPS_CM
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	select MIPS_CPS_PM if HOTPLUG_CPU
2485 2486
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
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	select SYS_SUPPORTS_HOTPLUG_CPU
2488
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2489 2490 2491 2492 2493 2494 2495 2496 2497
	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.

2498
config MIPS_CPS_PM
2499
	depends on MIPS_CPS
2500 2501
	bool

2502 2503
config MIPS_CM
	bool
2504
	select MIPS_CPC
2505

2506 2507
config MIPS_CPC
	bool
2508

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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

2519 2520 2521 2522 2523 2524 2525 2526
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

2527 2528
config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
2529
	bool "SmartMIPS"
2530 2531 2532 2533 2534 2535 2536 2537 2538
	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.

2539
config CPU_MICROMIPS
2540
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2541
	bool "microMIPS"
2542 2543 2544 2545
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

2546 2547
endchoice

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config CPU_HAS_MSA
2549
	bool "Support for the MIPS SIMD Architecture"
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	depends on CPU_SUPPORTS_MSA
2551
	depends on MIPS_FP_SUPPORT
2552
	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
2556 2557 2558 2559 2560
	  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
2565
	bool
2566

2567 2568 2569
config XKS01
	bool

2570 2571 2572 2573 2574 2575 2576
config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

2577 2578 2579
config CPU_HAS_RIXI
	bool

2580
config CPU_NO_LOAD_STORE_LR
2581 2582
	bool
	help
2583
	  CPU lacks support for unaligned load and store instructions:
2584
	  LWL, LWR, SWL, SWR (Load/store word left/right).
2585 2586
	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
	  systems).
2587

2588 2589 2590
#
# Vectored interrupt mode is an R2 feature
#
2591
config CPU_MIPSR2_IRQ_VI
2592
	bool
2593

2594 2595 2596
#
# Extended interrupt mode is an R2 feature
#
2597
config CPU_MIPSR2_IRQ_EI
2598
	bool
2599

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config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

2605 2606 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616 2617
#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

2618 2619 2620 2621
config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

2622 2623 2624 2625 2626 2627 2628
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
2630 2631 2632
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

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config MIPS_ASID_BITS_VARIABLE
	bool

2636 2637 2638
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"
2654
	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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2662 2663 2664
config SYS_SUPPORTS_SMARTMIPS
	bool

2665 2666 2667
config SYS_SUPPORTS_MICROMIPS
	bool

2668 2669 2670 2671 2672 2673 2674
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

2678 2679
config ARCH_FLATMEM_ENABLE
	def_bool y
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	depends on !NUMA && !CPU_LOONGSON2EF
2681

2682 2683
config ARCH_SPARSEMEM_ENABLE
	bool
2684
	select SPARSEMEM_STATIC if !SGI_IP27
2685

2686 2687 2688 2689 2690 2691 2692
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
2693
	  leave it disabled; on single node systems leave this option
2694 2695 2696 2697 2698
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

2699 2700 2701 2702 2703 2704 2705 2706
config HAVE_SETUP_PER_CPU_AREA
	def_bool y
	depends on NUMA

config NEED_PER_CPU_EMBED_FIRST_CHUNK
	def_bool y
	depends on NUMA

2707 2708
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)
2710 2711 2712 2713 2714 2715
	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

2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 2730 2731
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.

2732 2733 2734 2735
config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	---help---
2736 2737 2738 2739
	  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.
2740

2741
	  Entropy is generated using any coprocessor 0 registers available.
2742

2743
	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2744

2745
	  If unsure, say N.
2746 2747 2748 2749 2750 2751 2752 2753 2754 2755 2756 2757 2758 2759 2760 2761

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

2767 2768
config HW_PERF_EVENTS
	bool "Enable hardware performance counter support for perf events"
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	depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2770 2771 2772 2773 2774
	default y
	help
	  Enable hardware performance counter support for perf events. If
	  disabled, perf events will use software events only.

2775 2776 2777 2778 2779 2780 2781 2782 2783 2784 2785
config DMI
	bool "Enable DMI scanning"
	depends on MACH_LOONGSON64
	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
	default y
	help
	  Enabled scanning of DMI to identify machine quirks. Say Y
	  here unless you have verified that your setup is not
	  affected by entries in the DMI blacklist. Required by PNP
	  BIOS code.

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config SMP
	bool "Multi-Processing support"
2788 2789
	depends on SYS_SUPPORTS_SMP
	help
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	  This enables support for systems with more than one CPU. If you have
2791 2792
	  a system with only one CPU, say N. If you have a system with more
	  than one CPU, say Y.
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2794
	  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,
2797
	  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.

2808 2809 2810 2811 2812 2813 2814 2815 2816 2817
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.

2818 2819 2820
config SMP_UP
	bool

2821 2822 2823
config SYS_SUPPORTS_MIPS_CMP
	bool

2824 2825 2826
config SYS_SUPPORTS_MIPS_CPS
	bool

2827 2828 2829
config SYS_SUPPORTS_SMP
	bool

2830 2831 2832 2833 2834 2835 2836 2837 2838 2839 2840 2841 2842 2843 2844
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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2846 2847
	int "Maximum number of CPUs (2-256)"
	range 2 256
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	depends on SMP
2849 2850 2851 2852 2853
	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
2858 2859
	  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
2862 2863 2864
	  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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2866 2867
config MIPS_PERF_SHARED_TC_COUNTERS
	bool
2868 2869 2870 2871 2872 2873 2874 2875 2876

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
2877

2878 2879 2880 2881 2882 2883 2884 2885
#
# Timer Interrupt Frequency Configuration
#

choice
	prompt "Timer frequency"
	default HZ_250
	help
2886
	  Allows the configuration of the timer frequency.
2887

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	config HZ_24
		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ

2891
	config HZ_48
2892
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2893 2894 2895 2896 2897 2898 2899 2900 2901 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913

	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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2914 2915 2916
config SYS_SUPPORTS_24HZ
	bool

2917 2918 2919 2920 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 2936 2937 2938 2939
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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2940 2941 2942 2943 2944 2945 2946
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
2947 2948 2949 2950
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
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2951
	default 24 if HZ_24
2952 2953 2954 2955 2956 2957 2958 2959
	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
2960 2961 2962
config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

2963
config KEXEC
2964
	bool "Kexec system call"
2965
	select KEXEC_CORE
2966 2967 2968
	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
2969
	  but it is independent of the system firmware.   And like a reboot
2970 2971
	  you can start any kernel with it, not just Linux.

M
Matt LaPlante 已提交
2972
	  The name comes from the similarity to the exec system call.
2973 2974 2975

	  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
2976 2977 2978
	  initially work for you.  As of this writing the exact hardware
	  interface is strongly in flux, so no good recommendation can be
	  made.
2979

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2980
config CRASH_DUMP
2981 2982
	bool "Kernel crash dumps"
	help
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2983 2984 2985 2986 2987 2988 2989 2990 2991
	  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
2992
	hex "Physical address where the kernel is loaded"
2993
	default "0xffffffff84000000"
2994 2995
	depends on CRASH_DUMP
	help
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	  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).

3002 3003
config SECCOMP
	bool "Enable seccomp to safely compute untrusted bytecode"
3004
	depends on PROC_FS
3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018
	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.

3019
config MIPS_O32_FP64_SUPPORT
3020
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3021 3022 3023 3024 3025 3026 3027 3028 3029 3030 3031 3032
	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.

3033 3034 3035 3036 3037 3038 3039 3040
	  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.
3041

3042
config USE_OF
3043
	bool
3044
	select OF
3045
	select OF_EARLY_FLATTREE
3046
	select IRQ_DOMAIN
3047

3048 3049 3050
config UHI_BOOT
	bool

3051 3052 3053
config BUILTIN_DTB
	bool

3054
choice
3055
	prompt "Kernel appended dtb support" if USE_OF
3056 3057 3058 3059 3060 3061 3062
	default MIPS_NO_APPENDED_DTB

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

3063 3064 3065 3066 3067 3068 3069 3070 3071 3072 3073 3074 3075 3076
	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.

3077
	config MIPS_RAW_APPENDED_DTB
3078
		bool "vmlinux.bin or vmlinuz.bin"
3079 3080
		help
		  With this option, the boot code will look for a device tree binary
3081
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3082 3083 3084 3085 3086 3087 3088 3089 3090 3091 3092 3093 3094
		  (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

3095 3096
choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
J
Jonas Gorski 已提交
3097
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
J
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3098
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
J
Jonas Gorski 已提交
3099
					 !CAVIUM_OCTEON_SOC
3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 3111
	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"
3112 3113 3114 3115

	config MIPS_CMDLINE_BUILTIN_EXTEND
		depends on CMDLINE_BOOL
		bool "Extend builtin kernel arguments with bootloader arguments"
3116 3117
endchoice

3118 3119
endmenu

3120 3121 3122 3123 3124 3125 3126 3127
config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

3128 3129
config PGTABLE_LEVELS
	int
3130
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3131 3132 3133
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

3134 3135 3136
config MIPS_AUTO_PFN_OFFSET
	bool

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3137 3138
menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"

3139
config PCI_DRIVERS_GENERIC
3140
	select PCI_DOMAINS_GENERIC if PCI
3141 3142 3143 3144 3145
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
3146
	select PCI_DOMAINS if PCI
L
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3147 3148 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159

#
# 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
3160 3161 3162 3163 3164 3165 3166 3167
	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
	  processors.  TURBOchannel programming specifications are available
	  at:
	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
	  and:
	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
	  Linux driver support status is documented at:
	  <http://www.linux-mips.org/wiki/DECstation>
L
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3168 3169 3170 3171 3172

config MMU
	bool
	default y

3173 3174 3175 3176 3177 3178 3179 3180 3181
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
3182
	default 8
3183 3184

config ARCH_MMAP_RND_COMPAT_BITS_MAX
3185
	default 15
3186

3187 3188
config I8253
	bool
3189
	select CLKSRC_I8253
3190
	select CLKEVT_I8253
W
Wu Zhangjin 已提交
3191
	select MIPS_EXTERNAL_TIMER
3192

3193 3194 3195
config ZONE_DMA
	bool

3196 3197 3198
config ZONE_DMA32
	bool

L
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3199 3200 3201 3202 3203 3204
endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
3205
	bool
L
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3206 3207 3208 3209

config COMPAT
	bool

3210 3211 3212
config SYSVIPC_COMPAT
	bool

L
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3213 3214
config MIPS32_O32
	bool "Kernel support for o32 binaries"
3215 3216 3217 3218 3219
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
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3220 3221 3222 3223 3224 3225 3226 3227 3228
	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"
3229
	depends on 64BIT
3230
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3231 3232 3233
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
L
Linus Torvalds 已提交
3234 3235 3236 3237 3238 3239 3240 3241 3242 3243 3244
	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
3245
	select ELFCORE
L
Linus Torvalds 已提交
3246

3247 3248
menu "Power management options"

W
Wu Zhangjin 已提交
3249 3250
config ARCH_HIBERNATION_POSSIBLE
	def_bool y
3251
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
W
Wu Zhangjin 已提交
3252

J
Johannes Berg 已提交
3253 3254
config ARCH_SUSPEND_POSSIBLE
	def_bool y
3255
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
J
Johannes Berg 已提交
3256

3257
source "kernel/power/Kconfig"
R
Rodolfo Giometti 已提交
3258

L
Linus Torvalds 已提交
3259 3260
endmenu

3261 3262 3263 3264
config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"
P
Paul Burton 已提交
3265 3266

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3267 3268
source "drivers/cpufreq/Kconfig"
endif
W
Wu Zhangjin 已提交
3269

P
Paul Burton 已提交
3270 3271 3272 3273
source "drivers/cpuidle/Kconfig"

endmenu

3274 3275
source "drivers/firmware/Kconfig"

3276
source "arch/mips/kvm/Kconfig"