xref: /linux/arch/mips/Kconfig (revision bab1dde31db5413d4c75c99cf3f08c4a2e1c1b9d)

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

config MIPS_FIXUP_BIGPHYS_ADDR
	bool

config MIPS_GENERIC
	bool

config MACH_INGENIC
	bool
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_ZBOOT
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU
	select PINCTRL
	select GPIOLIB
	select COMMON_CLK
	select GENERIC_IRQ_CHIP
	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
	select USE_OF
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER

menu "Machine selection"

choice
	prompt "System type"
	default MIPS_GENERIC_KERNEL

config MIPS_GENERIC_KERNEL
	bool "Generic board-agnostic MIPS kernel"
	select ARCH_HAS_SETUP_DMA_OPS
	select MIPS_GENERIC
	select BOOT_RAW
	select BUILTIN_DTB
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CPU_MIPSR2_IRQ_EI
	select CPU_MIPSR2_IRQ_VI
	select CSRC_R4K
	select DMA_NONCOHERENT
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select MIPS_AUTO_PFN_OFFSET
	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
	select SWAP_IO_SPACE
	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
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
	select SYS_SUPPORTS_ZBOOT
	select UHI_BOOT
	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
	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.

config MIPS_ALCHEMY
	bool "Alchemy processor based machines"
	select PHYS_ADDR_T_64BIT
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_MIPS_CPU
	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_APM_EMULATION
	select GPIOLIB
	select SYS_SUPPORTS_ZBOOT
	select COMMON_CLK

config AR7
	bool "Texas Instruments AR7"
	select BOOT_ELF32
	select DMA_NONCOHERENT
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_MIPS_CPU
	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
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_ZBOOT_UART16550
	select GPIOLIB
	select VLYNQ
	select HAVE_LEGACY_CLK
	help
	  Support for the Texas Instruments AR7 System-on-a-Chip
	  family: TNETD7100, 7200 and 7300.

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

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

config BMIPS_GENERIC
	bool "Broadcom Generic BMIPS kernel"
	select ARCH_HAS_RESET_CONTROLLER
	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
	select ARCH_HAS_PHYS_TO_DMA
	select BOOT_RAW
	select NO_EXCEPT_FILL
	select USE_OF
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K
	select COMMON_CLK
	select BCM6345_L1_IRQ
	select BCM7038_L1_IRQ
	select BCM7120_L2_IRQ
	select BRCMSTB_L2_IRQ
	select IRQ_MIPS_CPU
	select DMA_NONCOHERENT
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_HAS_CPU_BMIPS32_3300
	select SYS_HAS_CPU_BMIPS4350
	select SYS_HAS_CPU_BMIPS4380
	select SYS_HAS_CPU_BMIPS5000
	select SWAP_IO_SPACE
	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 HARDIRQS_SW_RESEND
	help
	  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.

config BCM47XX
	bool "Broadcom BCM47XX based boards"
	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select NO_EXCEPT_FILL
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_ZBOOT
	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
	select GPIOLIB
	select LEDS_GPIO_REGISTER
	select BCM47XX_NVRAM
	select BCM47XX_SPROM
	select BCM47XX_SSB if !BCM47XX_BCMA
	help
	  Support for BCM47XX based boards

config BCM63XX
	bool "Broadcom BCM63XX based boards"
	select BOOT_RAW
	select CEVT_R4K
	select CSRC_R4K
	select SYNC_R4K
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SWAP_IO_SPACE
	select GPIOLIB
	select MIPS_L1_CACHE_SHIFT_4
	select CLKDEV_LOOKUP
	select HAVE_LEGACY_CLK
	help
	  Support for BCM63XX based boards

config MIPS_COBALT
	bool "Cobalt Server"
	select CEVT_R4K
	select CSRC_R4K
	select CEVT_GT641XX
	select DMA_NONCOHERENT
	select FORCE_PCI
	select I8253
	select I8259
	select IRQ_MIPS_CPU
	select IRQ_GT641XX
	select PCI_GT64XXX_PCI0
	select SYS_HAS_CPU_NEVADA
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select USE_GENERIC_EARLY_PRINTK_8250

config MACH_DECSTATION
	bool "DECstations"
	select BOOT_ELF32
	select CEVT_DS1287
	select CEVT_R4K if CPU_R4X00
	select CSRC_IOASIC
	select CSRC_R4K if CPU_R4X00
	select CPU_DADDI_WORKAROUNDS if 64BIT
	select CPU_R4000_WORKAROUNDS if 64BIT
	select CPU_R4400_WORKAROUNDS if 64BIT
	select DMA_NONCOHERENT
	select NO_IOPORT_MAP
	select IRQ_MIPS_CPU
	select SYS_HAS_CPU_R3000
	select SYS_HAS_CPU_R4X00
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_128HZ
	select SYS_SUPPORTS_256HZ
	select SYS_SUPPORTS_1024HZ
	select MIPS_L1_CACHE_SHIFT_4
	help
	  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:

		DECstation 5000/50
		DECstation 5000/150
		DECstation 5000/260
		DECsystem 5900/260

	  otherwise choose R3000.

config MACH_JAZZ
	bool "Jazz family of machines"
	select ARC_MEMORY
	select ARC_PROMLIB
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select DMA_OPS
	select FW_ARC
	select FW_ARC32
	select ARCH_MAY_HAVE_PC_FDC
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
	select GENERIC_ISA_DMA
	select HAVE_PCSPKR_PLATFORM
	select IRQ_MIPS_CPU
	select I8253
	select I8259
	select ISA
	select SYS_HAS_CPU_R4X00
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_100HZ
	select SYS_SUPPORTS_LITTLE_ENDIAN
	help
	  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.

config MACH_INGENIC_SOC
	bool "Ingenic SoC based machines"
	select MIPS_GENERIC
	select MACH_INGENIC
	select SYS_SUPPORTS_ZBOOT_UART16550

config LANTIQ
	bool "Lantiq based platforms"
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU
	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
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_VPE_LOADER
	select SYS_HAS_EARLY_PRINTK
	select GPIOLIB
	select SWAP_IO_SPACE
	select BOOT_RAW
	select CLKDEV_LOOKUP
	select HAVE_LEGACY_CLK
	select USE_OF
	select PINCTRL
	select PINCTRL_LANTIQ
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER

config MACH_LOONGSON32
	bool "Loongson 32-bit family of machines"
	select SYS_SUPPORTS_ZBOOT
	help
	  This enables support for the Loongson-1 family of machines.

	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
	  the Institute of Computing Technology (ICT), Chinese Academy of
	  Sciences (CAS).

config MACH_LOONGSON2EF
	bool "Loongson-2E/F family of machines"
	select SYS_SUPPORTS_ZBOOT
	help
	  This enables the support of early Loongson-2E/F family of machines.

config MACH_LOONGSON64
	bool "Loongson 64-bit family of machines"
	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 NO_EXCEPT_FILL
	select NR_CPUS_DEFAULT_64
	select USE_GENERIC_EARLY_PRINTK_8250
	select PCI_DRIVERS_GENERIC
	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
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_RELOCATABLE
	select ZONE_DMA32
	select COMMON_CLK
	select USE_OF
	select BUILTIN_DTB
	select PCI_HOST_GENERIC
	help
	  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).

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
	select DMA_NONCOHERENT
	select GPIOLIB
	select IRQ_MIPS_CPU
	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
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_ZBOOT
	select SYS_HAS_EARLY_PRINTK
	select USE_GENERIC_EARLY_PRINTK_8250
	select USE_OF
	help
	  This enables support for the IMG Pistachio SoC platform.

config MIPS_MALTA
	bool "MIPS Malta board"
	select ARCH_MAY_HAVE_PC_FDC
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select BOOT_ELF32
	select BOOT_RAW
	select BUILTIN_DTB
	select CEVT_R4K
	select CLKSRC_MIPS_GIC
	select COMMON_CLK
	select CSRC_R4K
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
	select HAVE_PCSPKR_PLATFORM
	select HAVE_PCI
	select I8253
	select I8259
	select IRQ_MIPS_CPU
	select MIPS_BONITO64
	select MIPS_CPU_SCACHE
	select MIPS_GIC
	select MIPS_L1_CACHE_SHIFT_6
	select MIPS_MSC
	select PCI_GT64XXX_PCI0
	select SMP_UP if SMP
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_HAS_CPU_MIPS32_R3_5
	select SYS_HAS_CPU_MIPS32_R5
	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_HAS_CPU_NEVADA
	select SYS_HAS_CPU_RM7000
	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
	select SYS_SUPPORTS_MIPS_CMP
	select SYS_SUPPORTS_MIPS_CPS
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_RELOCATABLE
	select SYS_SUPPORTS_SMARTMIPS
	select SYS_SUPPORTS_VPE_LOADER
	select SYS_SUPPORTS_ZBOOT
	select USE_OF
	select WAR_ICACHE_REFILLS
	select ZONE_DMA32 if 64BIT
	help
	  This enables support for the MIPS Technologies Malta evaluation
	  board.

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.

config MACH_VR41XX
	bool "NEC VR4100 series based machines"
	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_VR41XX
	select SYS_SUPPORTS_MIPS16
	select GPIOLIB

config MACH_NINTENDO64
	bool "Nintendo 64 console"
	select CEVT_R4K
	select CSRC_R4K
	select SYS_HAS_CPU_R4300
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU

config RALINK
	bool "Ralink based machines"
	select CEVT_R4K
	select CSRC_R4K
	select BOOT_RAW
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU
	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
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_ZBOOT
	select SYS_HAS_EARLY_PRINTK
	select CLKDEV_LOOKUP
	select ARCH_HAS_RESET_CONTROLLER
	select RESET_CONTROLLER

config MACH_REALTEK_RTL
	bool "Realtek RTL838x/RTL839x based machines"
	select MIPS_GENERIC
	select DMA_NONCOHERENT
	select IRQ_MIPS_CPU
	select CSRC_R4K
	select CEVT_R4K
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_HAS_CPU_MIPS32_R2
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_MIPS16
	select SYS_SUPPORTS_MULTITHREADING
	select SYS_SUPPORTS_VPE_LOADER
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_EARLY_PRINTK_8250
	select USE_GENERIC_EARLY_PRINTK_8250
	select BOOT_RAW
	select PINCTRL
	select USE_OF

config SGI_IP22
	bool "SGI IP22 (Indy/Indigo2)"
	select ARC_MEMORY
	select ARC_PROMLIB
	select FW_ARC
	select FW_ARC32
	select ARCH_MIGHT_HAVE_PC_SERIO
	select BOOT_ELF32
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select HAVE_EISA
	select I8253
	select I8259
	select IP22_CPU_SCACHE
	select IRQ_MIPS_CPU
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
	select SGI_HAS_HAL2
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select WAR_R4600_V1_INDEX_ICACHEOP
	select WAR_R4600_V1_HIT_CACHEOP
	select WAR_R4600_V2_HIT_CACHEOP
	select MIPS_L1_CACHE_SHIFT_7
	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
	bool "SGI IP27 (Origin200/2000)"
	select ARCH_HAS_PHYS_TO_DMA
	select ARCH_SPARSEMEM_ENABLE
	select FW_ARC
	select FW_ARC64
	select ARC_CMDLINE_ONLY
	select BOOT_ELF64
	select DEFAULT_SGI_PARTITION
	select SYS_HAS_EARLY_PRINTK
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select IRQ_DOMAIN_HIERARCHY
	select NR_CPUS_DEFAULT_64
	select PCI_DRIVERS_GENERIC
	select PCI_XTALK_BRIDGE
	select SYS_HAS_CPU_R10000
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_SMP
	select WAR_R10000_LLSC
	select MIPS_L1_CACHE_SHIFT_7
	select NUMA
	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.

config SGI_IP28
	bool "SGI IP28 (Indigo2 R10k)"
	select ARC_MEMORY
	select ARC_PROMLIB
	select FW_ARC
	select FW_ARC64
	select ARCH_MIGHT_HAVE_PC_SERIO
	select BOOT_ELF64
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA_SUPPORT_BROKEN
	select IRQ_MIPS_CPU
	select HAVE_EISA
	select I8253
	select I8259
	select SGI_HAS_I8042
	select SGI_HAS_INDYDOG
	select SGI_HAS_HAL2
	select SGI_HAS_SEEQ
	select SGI_HAS_WD93
	select SGI_HAS_ZILOG
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_R10000
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select WAR_R10000_LLSC
	select MIPS_L1_CACHE_SHIFT_7
	help
	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
	  kernel that runs on these, say Y here.

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 WAR_R10000_LLSC
	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.

config SGI_IP32
	bool "SGI IP32 (O2)"
	select ARC_MEMORY
	select ARC_PROMLIB
	select ARCH_HAS_PHYS_TO_DMA
	select FW_ARC
	select FW_ARC32
	select BOOT_ELF32
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select R5000_CPU_SCACHE
	select RM7000_CPU_SCACHE
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000 if BROKEN
	select SYS_HAS_CPU_RM7000
	select SYS_HAS_CPU_NEVADA
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select WAR_ICACHE_REFILLS
	help
	  If you want this kernel to run on SGI O2 workstation, say Y here.

config SIBYTE_CRHINE
	bool "Sibyte BCM91120C-CRhine"
	select BOOT_ELF32
	select SIBYTE_BCM1120
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_CARMEL
	bool "Sibyte BCM91120x-Carmel"
	select BOOT_ELF32
	select SIBYTE_BCM1120
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_CRHONE
	bool "Sibyte BCM91125C-CRhone"
	select BOOT_ELF32
	select SIBYTE_BCM1125
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_RHONE
	bool "Sibyte BCM91125E-Rhone"
	select BOOT_ELF32
	select SIBYTE_BCM1125H
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN

config SIBYTE_SWARM
	bool "Sibyte BCM91250A-SWARM"
	select BOOT_ELF32
	select HAVE_PATA_PLATFORM
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select ZONE_DMA32 if 64BIT
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SIBYTE_LITTLESUR
	bool "Sibyte BCM91250C2-LittleSur"
	select BOOT_ELF32
	select HAVE_PATA_PLATFORM
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select ZONE_DMA32 if 64BIT

config SIBYTE_SENTOSA
	bool "Sibyte BCM91250E-Sentosa"
	select BOOT_ELF32
	select SIBYTE_SB1250
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SIBYTE_BIGSUR
	bool "Sibyte BCM91480B-BigSur"
	select BOOT_ELF32
	select NR_CPUS_DEFAULT_4
	select SIBYTE_BCM1x80
	select SWAP_IO_SPACE
	select SYS_HAS_CPU_SB1
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select ZONE_DMA32 if 64BIT
	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI

config SNI_RM
	bool "SNI RM200/300/400"
	select ARC_MEMORY
	select ARC_PROMLIB
	select FW_ARC if CPU_LITTLE_ENDIAN
	select FW_ARC32 if CPU_LITTLE_ENDIAN
	select FW_SNIPROM if CPU_BIG_ENDIAN
	select ARCH_MAY_HAVE_PC_FDC
	select ARCH_MIGHT_HAVE_PC_PARPORT
	select ARCH_MIGHT_HAVE_PC_SERIO
	select BOOT_ELF32
	select CEVT_R4K
	select CSRC_R4K
	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
	select DMA_NONCOHERENT
	select GENERIC_ISA_DMA
	select HAVE_EISA
	select HAVE_PCSPKR_PLATFORM
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select I8253
	select I8259
	select ISA
	select MIPS_L1_CACHE_SHIFT_6
	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
	select SYS_HAS_CPU_R4X00
	select SYS_HAS_CPU_R5000
	select SYS_HAS_CPU_R10000
	select R5000_CPU_SCACHE
	select SYS_HAS_EARLY_PRINTK
	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 WAR_R4600_V2_HIT_CACHEOP
	help
	  The SNI RM200/300/400 are MIPS-based machines manufactured by
	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
	  Technology and now in turn merged with Fujitsu.  Say Y here to
	  support this machine type.

config MACH_TX39XX
	bool "Toshiba TX39 series based machines"

config MACH_TX49XX
	bool "Toshiba TX49 series based machines"
	select WAR_TX49XX_ICACHE_INDEX_INV

config MIKROTIK_RB532
	bool "Mikrotik RB532 boards"
	select CEVT_R4K
	select CSRC_R4K
	select DMA_NONCOHERENT
	select HAVE_PCI
	select IRQ_MIPS_CPU
	select SYS_HAS_CPU_MIPS32_R1
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	select BOOT_RAW
	select GPIOLIB
	select MIPS_L1_CACHE_SHIFT_4
	help
	  Support the Mikrotik(tm) RouterBoard 532 series,
	  based on the IDT RC32434 SoC.

config CAVIUM_OCTEON_SOC
	bool "Cavium Networks Octeon SoC based boards"
	select CEVT_R4K
	select ARCH_HAS_PHYS_TO_DMA
	select HAVE_RAPIDIO
	select PHYS_ADDR_T_64BIT
	select SYS_SUPPORTS_64BIT_KERNEL
	select SYS_SUPPORTS_BIG_ENDIAN
	select EDAC_SUPPORT
	select EDAC_ATOMIC_SCRUB
	select SYS_SUPPORTS_LITTLE_ENDIAN
	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
	select SYS_HAS_EARLY_PRINTK
	select SYS_HAS_CPU_CAVIUM_OCTEON
	select HAVE_PCI
	select HAVE_PLAT_DELAY
	select HAVE_PLAT_FW_INIT_CMDLINE
	select HAVE_PLAT_MEMCPY
	select ZONE_DMA32
	select HOLES_IN_ZONE
	select GPIOLIB
	select USE_OF
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_SMP
	select NR_CPUS_DEFAULT_64
	select MIPS_NR_CPU_NR_MAP_1024
	select BUILTIN_DTB
	select MTD_COMPLEX_MAPPINGS
	select SWIOTLB
	select SYS_SUPPORTS_RELOCATABLE
	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.

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
	select HAVE_PCI
	select SWAP_IO_SPACE
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select PHYS_ADDR_T_64BIT
	select SYS_SUPPORTS_BIG_ENDIAN
	select SYS_SUPPORTS_HIGHMEM
	select NR_CPUS_DEFAULT_32
	select CEVT_R4K
	select CSRC_R4K
	select IRQ_MIPS_CPU
	select ZONE_DMA32 if 64BIT
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
	help
	  Support for systems based on Netlogic XLR and XLS processors.
	  Say Y here if you have a XLR or XLS based board.

config NLM_XLP_BOARD
	bool "Netlogic XLP based systems"
	select BOOT_ELF32
	select NLM_COMMON
	select SYS_HAS_CPU_XLP
	select SYS_SUPPORTS_SMP
	select HAVE_PCI
	select SYS_SUPPORTS_32BIT_KERNEL
	select SYS_SUPPORTS_64BIT_KERNEL
	select PHYS_ADDR_T_64BIT
	select GPIOLIB
	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
	select IRQ_MIPS_CPU
	select ZONE_DMA32 if 64BIT
	select SYNC_R4K
	select SYS_HAS_EARLY_PRINTK
	select USE_OF
	select SYS_SUPPORTS_ZBOOT
	select SYS_SUPPORTS_ZBOOT_UART16550
	help
	  This board is based on Netlogic XLP Processor.
	  Say Y here if you have a XLP based board.

endchoice

source "arch/mips/alchemy/Kconfig"
source "arch/mips/ath25/Kconfig"
source "arch/mips/ath79/Kconfig"
source "arch/mips/bcm47xx/Kconfig"
source "arch/mips/bcm63xx/Kconfig"
source "arch/mips/bmips/Kconfig"
source "arch/mips/generic/Kconfig"
source "arch/mips/ingenic/Kconfig"
source "arch/mips/jazz/Kconfig"
source "arch/mips/lantiq/Kconfig"
source "arch/mips/pic32/Kconfig"
source "arch/mips/pistachio/Kconfig"
source "arch/mips/ralink/Kconfig"
source "arch/mips/sgi-ip27/Kconfig"
source "arch/mips/sibyte/Kconfig"
source "arch/mips/txx9/Kconfig"
source "arch/mips/vr41xx/Kconfig"
source "arch/mips/cavium-octeon/Kconfig"
source "arch/mips/loongson2ef/Kconfig"
source "arch/mips/loongson32/Kconfig"
source "arch/mips/loongson64/Kconfig"
source "arch/mips/netlogic/Kconfig"

endmenu

config GENERIC_HWEIGHT
	bool
	default y

config GENERIC_CALIBRATE_DELAY
	bool
	default y

config SCHED_OMIT_FRAME_POINTER
	bool
	default y

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

config ARCH_MAY_HAVE_PC_FDC
	bool

config BOOT_RAW
	bool

config CEVT_BCM1480
	bool

config CEVT_DS1287
	bool

config CEVT_GT641XX
	bool

config CEVT_R4K
	bool

config CEVT_SB1250
	bool

config CEVT_TXX9
	bool

config CSRC_BCM1480
	bool

config CSRC_IOASIC
	bool

config CSRC_R4K
	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
	bool

config CSRC_SB1250
	bool

config MIPS_CLOCK_VSYSCALL
	def_bool CSRC_R4K || CLKSRC_MIPS_GIC

config GPIO_TXX9
	select GPIOLIB
	bool

config FW_CFE
	bool

config ARCH_SUPPORTS_UPROBES
	bool

config DMA_PERDEV_COHERENT
	bool
	select ARCH_HAS_SETUP_DMA_OPS
	select DMA_NONCOHERENT

config DMA_NONCOHERENT
	bool
	#
	# 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.
	#
	select ARCH_HAS_DMA_WRITE_COMBINE
	select ARCH_HAS_DMA_PREP_COHERENT
	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
	select ARCH_HAS_DMA_SET_UNCACHED
	select DMA_NONCOHERENT_MMAP
	select NEED_DMA_MAP_STATE

config SYS_HAS_EARLY_PRINTK
	bool

config SYS_SUPPORTS_HOTPLUG_CPU
	bool

config MIPS_BONITO64
	bool

config MIPS_MSC
	bool

config SYNC_R4K
	bool

config NO_IOPORT_MAP
	def_bool n

config GENERIC_CSUM
	def_bool CPU_NO_LOAD_STORE_LR

config GENERIC_ISA_DMA
	bool
	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
	select ISA_DMA_API

config GENERIC_ISA_DMA_SUPPORT_BROKEN
	bool
	select GENERIC_ISA_DMA

config HAVE_PLAT_DELAY
	bool

config HAVE_PLAT_FW_INIT_CMDLINE
	bool

config HAVE_PLAT_MEMCPY
	bool

config ISA_DMA_API
	bool

config HOLES_IN_ZONE
	bool

config SYS_SUPPORTS_RELOCATABLE
	bool
	help
	  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.

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


#
# Endianness selection.  Sufficiently obscure so many users don't know what to
# 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
	prompt "Endianness selection"
	help
	  Some MIPS machines can be configured for either little or big endian
	  byte order. These modes require different kernels and a different
	  Linux distribution.  In general there is one preferred byteorder for a
	  particular system but some systems are just as commonly used in the
	  one or the other endianness.

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

config EXPORT_UASM
	bool

config SYS_SUPPORTS_APM_EMULATION
	bool

config SYS_SUPPORTS_BIG_ENDIAN
	bool

config SYS_SUPPORTS_LITTLE_ENDIAN
	bool

config SYS_SUPPORTS_HUGETLBFS
	bool
	depends on CPU_SUPPORTS_HUGEPAGES
	default y

config MIPS_HUGE_TLB_SUPPORT
	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE

config IRQ_MSP_SLP
	bool

config IRQ_MSP_CIC
	bool

config IRQ_TXX9
	bool

config IRQ_GT641XX
	bool

config PCI_GT64XXX_PCI0
	bool

config PCI_XTALK_BRIDGE
	bool

config NO_EXCEPT_FILL
	bool

config MIPS_SPRAM
	bool

config SWAP_IO_SPACE
	bool

config SGI_HAS_INDYDOG
	bool

config SGI_HAS_HAL2
	bool

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

config FW_ARC32
	bool

config FW_SNIPROM
	bool

config BOOT_ELF32
	bool

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

config MIPS_L1_CACHE_SHIFT
	int
	default "7" if MIPS_L1_CACHE_SHIFT_7
	default "6" if MIPS_L1_CACHE_SHIFT_6
	default "5" if MIPS_L1_CACHE_SHIFT_5
	default "4" if MIPS_L1_CACHE_SHIFT_4
	default "5"

config ARC_CMDLINE_ONLY
	bool

config ARC_CONSOLE
	bool "ARC console support"
	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)

config ARC_MEMORY
	bool

config ARC_PROMLIB
	bool

config FW_ARC64
	bool

config BOOT_ELF64
	bool

menu "CPU selection"

choice
	prompt "CPU type"
	default CPU_R4X00

config CPU_LOONGSON64
	bool "Loongson 64-bit CPU"
	depends on SYS_HAS_CPU_LOONGSON64
	select ARCH_HAS_PHYS_TO_DMA
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select CPU_SUPPORTS_MSA
	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
	select CPU_MIPSR2_IRQ_VI
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	select MIPS_ASID_BITS_VARIABLE
	select MIPS_PGD_C0_CONTEXT
	select MIPS_L1_CACHE_SHIFT_6
	select GPIOLIB
	select SWIOTLB
	select HAVE_KVM
	help
		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"
	default n
	depends on CPU_LOONGSON64
	help
	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
	  Fast TLB refill support, etc.

	  This option enable those enhancements which are not probed at run
	  time. If you want a generic kernel to run on all Loongson 3 machines,
	  please say 'N' here. If you want a high-performance kernel to run on
	  new Loongson-3 machines only, please say 'Y' here.

config CPU_LOONGSON3_WORKAROUNDS
	bool "Old Loongson-3 LLSC Workarounds"
	default y if SMP
	depends on CPU_LOONGSON64
	help
	  Loongson-3 processors have the llsc issues which require workarounds.
	  Without workarounds the system may hang unexpectedly.

	  Newer Loongson-3 will fix these issues and no workarounds are needed.
	  The workarounds have no significant side effect on them but may
	  decrease the performance of the system so this option should be
	  disabled unless the kernel is intended to be run on old systems.

	  If unsure, please say Y.

config CPU_LOONGSON3_CPUCFG_EMULATION
	bool "Emulate the CPUCFG instruction on older Loongson cores"
	default y
	depends on CPU_LOONGSON64
	help
	  Loongson-3A R4 and newer have the CPUCFG instruction available for
	  userland to query CPU capabilities, much like CPUID on x86. This
	  option provides emulation of the instruction on older Loongson
	  cores, back to Loongson-3A1000.

	  If unsure, please say Y.

config CPU_LOONGSON2E
	bool "Loongson 2E"
	depends on SYS_HAS_CPU_LOONGSON2E
	select CPU_LOONGSON2EF
	help
	  The Loongson 2E processor implements the MIPS III instruction set
	  with many extensions.

	  It has an internal FPGA northbridge, which is compatible to
	  bonito64.

config CPU_LOONGSON2F
	bool "Loongson 2F"
	depends on SYS_HAS_CPU_LOONGSON2F
	select CPU_LOONGSON2EF
	select GPIOLIB
	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.

config CPU_LOONGSON1B
	bool "Loongson 1B"
	depends on SYS_HAS_CPU_LOONGSON1B
	select CPU_LOONGSON32
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.

config CPU_LOONGSON1C
	bool "Loongson 1C"
	depends on SYS_HAS_CPU_LOONGSON1C
	select CPU_LOONGSON32
	select LEDS_GPIO_REGISTER
	help
	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
	  Release 1 instruction set and part of the MIPS32 Release 2
	  instruction set.

config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
	depends on SYS_HAS_CPU_MIPS32_R1
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	help
	  Choose this option to build a kernel for release 1 or later of the
	  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"
	depends on SYS_HAS_CPU_MIPS32_R2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	help
	  Choose this option to build a kernel for release 2 or later of the
	  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.

config CPU_MIPS32_R5
	bool "MIPS32 Release 5"
	depends on SYS_HAS_CPU_MIPS32_R5
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for release 5 or later of the
	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
	  family, are based on a MIPS32r5 processor. If you own an older
	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.

config CPU_MIPS32_R6
	bool "MIPS32 Release 6"
	depends on SYS_HAS_CPU_MIPS32_R6
	select CPU_HAS_PREFETCH
	select CPU_NO_LOAD_STORE_LR
	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.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
	depends on SYS_HAS_CPU_MIPS64_R1
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	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.
	  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"
	depends on SYS_HAS_CPU_MIPS64_R2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select CPU_SUPPORTS_MSA
	select HAVE_KVM
	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.

config CPU_MIPS64_R5
	bool "MIPS64 Release 5"
	depends on SYS_HAS_CPU_MIPS64_R5
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select CPU_SUPPORTS_MSA
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
	select HAVE_KVM
	help
	  Choose this option to build a kernel for release 5 or later of the
	  MIPS64 architecture.  This is a intermediate MIPS architecture
	  release partly implementing release 6 features. Though there is no
	  any hardware known to be based on this release.

config CPU_MIPS64_R6
	bool "MIPS64 Release 6"
	depends on SYS_HAS_CPU_MIPS64_R6
	select CPU_HAS_PREFETCH
	select CPU_NO_LOAD_STORE_LR
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select CPU_SUPPORTS_MSA
	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
	select HAVE_KVM
	help
	  Choose this option to build a kernel for release 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.

config CPU_P5600
	bool "MIPS Warrior P5600"
	depends on SYS_HAS_CPU_P5600
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_MSA
	select CPU_SUPPORTS_CPUFREQ
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select HAVE_KVM
	select MIPS_O32_FP64_SUPPORT
	help
	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
	  level features like up to six P5600 calculation cores, CM2 with L2
	  cache, IOCU/IOMMU (though might be unused depending on the system-
	  specific IP core configuration), GIC, CPC, virtualisation module,
	  eJTAG and PDtrace.

config CPU_R3000
	bool "R3000"
	depends on SYS_HAS_CPU_R3000
	select CPU_HAS_WB
	select CPU_R3K_TLB
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	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"
	depends on SYS_HAS_CPU_TX39XX
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_R3K_TLB

config CPU_VR41XX
	bool "R41xx"
	depends on SYS_HAS_CPU_VR41XX
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	help
	  The options selects support for the NEC VR4100 series of processors.
	  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_R4300
	bool "R4300"
	depends on SYS_HAS_CPU_R4300
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_HAS_LOAD_STORE_LR
	help
	  MIPS Technologies R4300-series processors.

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

config CPU_TX49XX
	bool "R49XX"
	depends on SYS_HAS_CPU_TX49XX
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HUGEPAGES

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

config CPU_R5500
	bool "R5500"
	depends on SYS_HAS_CPU_R5500
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HUGEPAGES
	help
	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
	  instruction set.

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

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

config CPU_RM7000
	bool "RM7000"
	depends on SYS_HAS_CPU_RM7000
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES

config CPU_SB1
	bool "SB1"
	depends on SYS_HAS_CPU_SB1
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select WEAK_ORDERING

config CPU_CAVIUM_OCTEON
	bool "Cavium Octeon processor"
	depends on SYS_HAS_CPU_CAVIUM_OCTEON
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_64BIT_KERNEL
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
	select MIPS_L1_CACHE_SHIFT_7
	select HAVE_KVM
	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.

config CPU_BMIPS
	bool "Broadcom BMIPS"
	depends on SYS_HAS_CPU_BMIPS
	select CPU_MIPS32
	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
	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
	select IRQ_MIPS_CPU
	select SWAP_IO_SPACE
	select WEAK_ORDERING
	select CPU_SUPPORTS_HIGHMEM
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_CPUFREQ
	select MIPS_EXTERNAL_TIMER
	help
	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.

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
	select CPU_SUPPORTS_HUGEPAGES
	select WEAK_ORDERING
	select WEAK_REORDERING_BEYOND_LLSC
	help
	  Netlogic Microsystems XLR/XLS processors.

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
	select CPU_MIPSR2
	select CPU_SUPPORTS_HUGEPAGES
	select MIPS_ASID_BITS_VARIABLE
	help
	  Netlogic Microsystems XLP processors.
endchoice

config CPU_MIPS32_3_5_FEATURES
	bool "MIPS32 Release 3.5 Features"
	depends on SYS_HAS_CPU_MIPS32_R3_5
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
		   CPU_P5600
	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.

config CPU_MIPS32_R5_FEATURES
	bool "MIPS32 Release 5 Features"
	depends on SYS_HAS_CPU_MIPS32_R5
	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
	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
	select PHYS_ADDR_T_64BIT
	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.

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

config SYS_SUPPORTS_ZBOOT
	bool
	select HAVE_KERNEL_GZIP
	select HAVE_KERNEL_BZIP2
	select HAVE_KERNEL_LZ4
	select HAVE_KERNEL_LZMA
	select HAVE_KERNEL_LZO
	select HAVE_KERNEL_XZ
	select HAVE_KERNEL_ZSTD

config SYS_SUPPORTS_ZBOOT_UART16550
	bool
	select SYS_SUPPORTS_ZBOOT

config SYS_SUPPORTS_ZBOOT_UART_PROM
	bool
	select SYS_SUPPORTS_ZBOOT

config CPU_LOONGSON2EF
	bool
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_64BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_HUGEPAGES
	select ARCH_HAS_PHYS_TO_DMA

config CPU_LOONGSON32
	bool
	select CPU_MIPS32
	select CPU_MIPSR2
	select CPU_HAS_PREFETCH
	select CPU_SUPPORTS_32BIT_KERNEL
	select CPU_SUPPORTS_HIGHMEM
	select CPU_SUPPORTS_CPUFREQ

config CPU_BMIPS32_3300
	select SMP_UP if SMP
	bool

config CPU_BMIPS4350
	bool
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU

config CPU_BMIPS4380
	bool
	select MIPS_L1_CACHE_SHIFT_6
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select CPU_HAS_RIXI

config CPU_BMIPS5000
	bool
	select MIPS_CPU_SCACHE
	select MIPS_L1_CACHE_SHIFT_7
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_HOTPLUG_CPU
	select CPU_HAS_RIXI

config SYS_HAS_CPU_LOONGSON64
	bool
	select CPU_SUPPORTS_CPUFREQ
	select CPU_HAS_RIXI

config SYS_HAS_CPU_LOONGSON2E
	bool

config SYS_HAS_CPU_LOONGSON2F
	bool
	select CPU_SUPPORTS_CPUFREQ
	select CPU_SUPPORTS_ADDRWINCFG if 64BIT

config SYS_HAS_CPU_LOONGSON1B
	bool

config SYS_HAS_CPU_LOONGSON1C
	bool

config SYS_HAS_CPU_MIPS32_R1
	bool

config SYS_HAS_CPU_MIPS32_R2
	bool

config SYS_HAS_CPU_MIPS32_R3_5
	bool

config SYS_HAS_CPU_MIPS32_R5
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

config SYS_HAS_CPU_MIPS32_R6
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

config SYS_HAS_CPU_MIPS64_R1
	bool

config SYS_HAS_CPU_MIPS64_R2
	bool

config SYS_HAS_CPU_MIPS64_R6
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

config SYS_HAS_CPU_P5600
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

config SYS_HAS_CPU_R3000
	bool

config SYS_HAS_CPU_TX39XX
	bool

config SYS_HAS_CPU_VR41XX
	bool

config SYS_HAS_CPU_R4300
	bool

config SYS_HAS_CPU_R4X00
	bool

config SYS_HAS_CPU_TX49XX
	bool

config SYS_HAS_CPU_R5000
	bool

config SYS_HAS_CPU_R5500
	bool

config SYS_HAS_CPU_NEVADA
	bool

config SYS_HAS_CPU_R10000
	bool
	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT

config SYS_HAS_CPU_RM7000
	bool

config SYS_HAS_CPU_SB1
	bool

config SYS_HAS_CPU_CAVIUM_OCTEON
	bool

config SYS_HAS_CPU_BMIPS
	bool

config SYS_HAS_CPU_BMIPS32_3300
	bool
	select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS4350
	bool
	select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS4380
	bool
	select SYS_HAS_CPU_BMIPS

config SYS_HAS_CPU_BMIPS5000
	bool
	select SYS_HAS_CPU_BMIPS
	select ARCH_HAS_SYNC_DMA_FOR_CPU

config SYS_HAS_CPU_XLR
	bool

config SYS_HAS_CPU_XLP
	bool

#
# CPU may reorder R->R, R->W, W->R, W->W
# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
#
config WEAK_ORDERING
	bool

#
# 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
endmenu

#
# These two indicate any level of the MIPS32 and MIPS64 architecture
#
config CPU_MIPS32
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
		     CPU_MIPS32_R6 || CPU_P5600

config CPU_MIPS64
	bool
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON

#
# These indicate the revision of the architecture
#
config CPU_MIPSR1
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1

config CPU_MIPSR2
	bool
	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

config CPU_MIPSR5
	bool
	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select MIPS_SPRAM

config CPU_MIPSR6
	bool
	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
	select CPU_HAS_RIXI
	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
	select HAVE_ARCH_BITREVERSE
	select MIPS_ASID_BITS_VARIABLE
	select MIPS_CRC_SUPPORT
	select MIPS_SPRAM

config TARGET_ISA_REV
	int
	default 1 if CPU_MIPSR1
	default 2 if CPU_MIPSR2
	default 5 if CPU_MIPSR5
	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.

config EVA
	bool

config XPA
	bool

config SYS_SUPPORTS_32BIT_KERNEL
	bool
config SYS_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_32BIT_KERNEL
	bool
config CPU_SUPPORTS_64BIT_KERNEL
	bool
config CPU_SUPPORTS_CPUFREQ
	bool
config CPU_SUPPORTS_ADDRWINCFG
	bool
config CPU_SUPPORTS_HUGEPAGES
	bool
	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
config MIPS_PGD_C0_CONTEXT
	bool
	default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP

#
# Set to y for ptrace access to watch registers.
#
config HARDWARE_WATCHPOINTS
	bool
	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6

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.

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

config KVM_GUEST
	bool "KVM Guest Kernel"
	depends on CPU_MIPS32_R2
	depends on !64BIT && BROKEN_ON_SMP
	help
	  Select this option if building a guest kernel for KVM (Trap & Emulate)
	  mode.

config KVM_GUEST_TIMER_FREQ
	int "Count/Compare Timer Frequency (MHz)"
	depends on KVM_GUEST
	default 100
	help
	  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.

config MIPS_VA_BITS_48
	bool "48 bits virtual memory"
	depends on 64BIT
	help
	  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.

	  If unsure, say N.

choice
	prompt "Kernel page size"
	default PAGE_SIZE_4KB

config PAGE_SIZE_4KB
	bool "4kB"
	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
	help
	  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.

config PAGE_SIZE_8KB
	bool "8kB"
	depends on CPU_CAVIUM_OCTEON
	depends on !MIPS_VA_BITS_48
	help
	  Using 8kB page size will result in higher performance kernel at
	  the price of higher memory consumption.  This option is available
	  only on cnMIPS processors.  Note that you will need a suitable Linux
	  distribution to support this.

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

config PAGE_SIZE_32KB
	bool "32kB"
	depends on CPU_CAVIUM_OCTEON
	depends on !MIPS_VA_BITS_48
	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.

config PAGE_SIZE_64KB
	bool "64kB"
	depends on !CPU_R3000 && !CPU_TX39XX
	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
	  writing this option is still high experimental.

endchoice

config FORCE_MAX_ZONEORDER
	int "Maximum zone order"
	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
	range 0 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.

config BOARD_SCACHE
	bool

config IP22_CPU_SCACHE
	bool
	select BOARD_SCACHE

#
# Support for a MIPS32 / MIPS64 style S-caches
#
config MIPS_CPU_SCACHE
	bool
	select BOARD_SCACHE

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
	bool

config CPU_GENERIC_DUMP_TLB
	bool
	default y if !(CPU_R3000 || CPU_TX39XX)

config MIPS_FP_SUPPORT
	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.

config CPU_R2300_FPU
	bool
	depends on MIPS_FP_SUPPORT
	default y if CPU_R3000 || CPU_TX39XX

config CPU_R3K_TLB
	bool

config CPU_R4K_FPU
	bool
	depends on MIPS_FP_SUPPORT
	default y if !CPU_R2300_FPU

config CPU_R4K_CACHE_TLB
	bool
	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)

config MIPS_MT_SMP
	bool "MIPS MT SMP support (1 TC on each available VPE)"
	default y
	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
	select CPU_MIPSR2_IRQ_VI
	select CPU_MIPSR2_IRQ_EI
	select SYNC_R4K
	select MIPS_MT
	select SMP
	select SMP_UP
	select SYS_SUPPORTS_SMP
	select SYS_SUPPORTS_SCHED_SMT
	select MIPS_PERF_SHARED_TC_COUNTERS
	help
	  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>.

config MIPS_MT
	bool

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

config SYS_SUPPORTS_MULTITHREADING
	bool

config MIPS_MT_FPAFF
	bool "Dynamic FPU affinity for FP-intensive threads"
	default y
	depends on MIPS_MT_SMP

config MIPSR2_TO_R6_EMULATOR
	bool "MIPS R2-to-R6 emulator"
	depends on CPU_MIPSR6
	depends on MIPS_FP_SUPPORT
	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
	  default. You can enable it using the 'mipsr2emu' kernel option.
	  The only reason this is a build-time option is to save ~14K from the
	  final kernel image.

config SYS_SUPPORTS_VPE_LOADER
	bool
	depends on SYS_SUPPORTS_MULTITHREADING
	help
	  Indicates that the platform supports the VPE loader, and provides
	  physical_memsize.

config MIPS_VPE_LOADER
	bool "VPE loader support."
	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
	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.

config MIPS_VPE_LOADER_CMP
	bool
	default "y"
	depends on MIPS_VPE_LOADER && MIPS_CMP

config MIPS_VPE_LOADER_MT
	bool
	default "y"
	depends on MIPS_VPE_LOADER && !MIPS_CMP

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
	bool "Enable support for AP/SP API (RTLX)"
	depends on MIPS_VPE_LOADER

config MIPS_VPE_APSP_API_CMP
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && MIPS_CMP

config MIPS_VPE_APSP_API_MT
	bool
	default "y"
	depends on MIPS_VPE_APSP_API && !MIPS_CMP

config MIPS_CMP
	bool "MIPS CMP framework support (DEPRECATED)"
	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
	select SMP
	select SYNC_R4K
	select SYS_SUPPORTS_SMP
	select WEAK_ORDERING
	default n
	help
	  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.

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

config MIPS_CPS
	bool "MIPS Coherent Processing System support"
	depends on SYS_SUPPORTS_MIPS_CPS
	select MIPS_CM
	select MIPS_CPS_PM if HOTPLUG_CPU
	select SMP
	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
	select SYS_SUPPORTS_HOTPLUG_CPU
	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
	select SYS_SUPPORTS_SMP
	select WEAK_ORDERING
	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
	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.

config MIPS_CPS_PM
	depends on MIPS_CPS
	bool

config MIPS_CM
	bool
	select MIPS_CPC

config MIPS_CPC
	bool

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

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

config CPU_HAS_SMARTMIPS
	depends on SYS_SUPPORTS_SMARTMIPS
	bool "SmartMIPS"
	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.

config CPU_MICROMIPS
	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
	bool "microMIPS"
	help
	  When this option is enabled the kernel will be built using the
	  microMIPS ISA

endchoice

config CPU_HAS_MSA
	bool "Support for the MIPS SIMD Architecture"
	depends on CPU_SUPPORTS_MSA
	depends on MIPS_FP_SUPPORT
	depends on 64BIT || MIPS_O32_FP64_SUPPORT
	help
	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
	  and a set of SIMD instructions to operate on them. When this option
	  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.

	  If unsure, say Y.

config CPU_HAS_WB
	bool

config XKS01
	bool

config CPU_HAS_DIEI
	depends on !CPU_DIEI_BROKEN
	bool

config CPU_DIEI_BROKEN
	bool

config CPU_HAS_RIXI
	bool

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

#
# Vectored interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_VI
	bool

#
# Extended interrupt mode is an R2 feature
#
config CPU_MIPSR2_IRQ_EI
	bool

config CPU_HAS_SYNC
	bool
	depends on !CPU_R3000
	default y

#
# CPU non-features
#
config CPU_DADDI_WORKAROUNDS
	bool

config CPU_R4000_WORKAROUNDS
	bool
	select CPU_R4400_WORKAROUNDS

config CPU_R4400_WORKAROUNDS
	bool

config CPU_R4X00_BUGS64
	bool
	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)

config MIPS_ASID_SHIFT
	int
	default 6 if CPU_R3000 || CPU_TX39XX
	default 0

config MIPS_ASID_BITS
	int
	default 0 if MIPS_ASID_BITS_VARIABLE
	default 6 if CPU_R3000 || CPU_TX39XX
	default 8

config MIPS_ASID_BITS_VARIABLE
	bool

config MIPS_CRC_SUPPORT
	bool

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

# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
#
#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
#      executed if there is no other dcache activity. If the dcache is
#      accessed for another instruction immediately preceding when these
#      cache instructions are executing, it is possible that the dcache
#      tag match outputs used by these cache instructions will be
#      incorrect. These cache instructions should be preceded by at least
#      four instructions that are not any kind of load or store
#      instruction.
#
#      This is not allowed:    lw
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
#
#      This is allowed:        lw
#                              nop
#                              nop
#                              nop
#                              nop
#                              cache       Hit_Writeback_Invalidate_D
config WAR_R4600_V1_HIT_CACHEOP
	bool

# Writeback and invalidate the primary cache dcache before DMA.
#
# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
# operate correctly if the internal data cache refill buffer is empty.  These
# CACHE instructions should be separated from any potential data cache miss
# by a load instruction to an uncached address to empty the response buffer."
# (Revision 2.0 device errata from IDT available on https://www.idt.com/
# in .pdf format.)
config WAR_R4600_V2_HIT_CACHEOP
	bool

# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
# the line which this instruction itself exists, the following
# operation is not guaranteed."
#
# Workaround: do two phase flushing for Index_Invalidate_I
config WAR_TX49XX_ICACHE_INDEX_INV
	bool

# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
# opposes it being called that) where invalid instructions in the same
# I-cache line worth of instructions being fetched may case spurious
# exceptions.
config WAR_ICACHE_REFILLS
	bool

# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
# may cause ll / sc and lld / scd sequences to execute non-atomically.
config WAR_R10000_LLSC
	bool

# 34K core erratum: "Problems Executing the TLBR Instruction"
config WAR_MIPS34K_MISSED_ITLB
	bool

#
# - 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.
# - 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.
#
config HIGHMEM
	bool "High Memory Support"
	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
	select KMAP_LOCAL

config CPU_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_HIGHMEM
	bool

config SYS_SUPPORTS_SMARTMIPS
	bool

config SYS_SUPPORTS_MICROMIPS
	bool

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.

config CPU_SUPPORTS_MSA
	bool

config ARCH_FLATMEM_ENABLE
	def_bool y
	depends on !NUMA && !CPU_LOONGSON2EF

config ARCH_SPARSEMEM_ENABLE
	bool
	select SPARSEMEM_STATIC if !SGI_IP27

config NUMA
	bool "NUMA Support"
	depends on SYS_SUPPORTS_NUMA
	select SMP
	help
	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
	  Access).  This option improves performance on systems with more
	  than two nodes; on two node systems it is generally better to
	  leave it disabled; on single node systems leave this option
	  disabled.

config SYS_SUPPORTS_NUMA
	bool

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

config RELOCATABLE
	bool "Relocatable kernel"
	depends on SYS_SUPPORTS_RELOCATABLE
	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
		   CPU_LOONGSON64
	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

config RELOCATION_TABLE_SIZE
	hex "Relocation table size"
	depends on RELOCATABLE
	range 0x0 0x01000000
	default "0x00200000" if CPU_LOONGSON64
	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.

config RANDOMIZE_BASE
	bool "Randomize the address of the kernel image"
	depends on RELOCATABLE
	help
	  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.

	  Entropy is generated using any coprocessor 0 registers available.

	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.

	  If unsure, say N.

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.

config NODES_SHIFT
	int
	default "6"
	depends on NEED_MULTIPLE_NODES

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

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.

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

	  If you say N here, the kernel will run on uni- and multiprocessor
	  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,
	  uniprocessor machines. On a uniprocessor machine, the kernel
	  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.

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

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

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.

config SMP_UP
	bool

config SYS_SUPPORTS_MIPS_CMP
	bool

config SYS_SUPPORTS_MIPS_CPS
	bool

config SYS_SUPPORTS_SMP
	bool

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

config NR_CPUS
	int "Maximum number of CPUs (2-256)"
	range 2 256
	depends on SMP
	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
	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
	  sense is 1 for Qemu (useful only for kernel debugging purposes)
	  and 2 for all others.

	  This is purely to save memory - each supported CPU adds
	  approximately eight kilobytes to the kernel image.  For best
	  performance should round up your number of processors to the next
	  power of two.

config MIPS_PERF_SHARED_TC_COUNTERS
	bool

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

#
# Timer Interrupt Frequency Configuration
#

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

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

	config HZ_48
		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ

	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

config SYS_SUPPORTS_24HZ
	bool

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
	default y if !SYS_SUPPORTS_24HZ && \
		     !SYS_SUPPORTS_48HZ && \
		     !SYS_SUPPORTS_100HZ && \
		     !SYS_SUPPORTS_128HZ && \
		     !SYS_SUPPORTS_250HZ && \
		     !SYS_SUPPORTS_256HZ && \
		     !SYS_SUPPORTS_1000HZ && \
		     !SYS_SUPPORTS_1024HZ

config HZ
	int
	default 24 if HZ_24
	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

config SCHED_HRTICK
	def_bool HIGH_RES_TIMERS

config KEXEC
	bool "Kexec system call"
	select KEXEC_CORE
	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
	  but it is independent of the system firmware.   And like a reboot
	  you can start any kernel with it, not just Linux.

	  The name comes from the similarity to the exec system call.

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

config CRASH_DUMP
	bool "Kernel crash dumps"
	help
	  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
	hex "Physical address where the kernel is loaded"
	default "0xffffffff84000000"
	depends on CRASH_DUMP
	help
	  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).

config MIPS_O32_FP64_SUPPORT
	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
	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.

	  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 dependent 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.

config USE_OF
	bool
	select OF
	select OF_EARLY_FLATTREE
	select IRQ_DOMAIN

config UHI_BOOT
	bool

config BUILTIN_DTB
	bool

choice
	prompt "Kernel appended dtb support" if USE_OF
	default MIPS_NO_APPENDED_DTB

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

	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 compatibility convenience for those
		  systems with a bootloader that can't be upgraded to accommodate
		  the documented boot protocol using a device tree.

	config MIPS_RAW_APPENDED_DTB
		bool "vmlinux.bin or vmlinuz.bin"
		help
		  With this option, the boot code will look for a device tree binary
		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
		  (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

choice
	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
					 !MACH_LOONGSON64 && !MIPS_MALTA && \
					 !CAVIUM_OCTEON_SOC
	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"

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

endmenu

config LOCKDEP_SUPPORT
	bool
	default y

config STACKTRACE_SUPPORT
	bool
	default y

config PGTABLE_LEVELS
	int
	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
	default 3 if 64BIT && !PAGE_SIZE_64KB
	default 2

config MIPS_AUTO_PFN_OFFSET
	bool

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

config PCI_DRIVERS_GENERIC
	select PCI_DOMAINS_GENERIC if PCI
	bool

config PCI_DRIVERS_LEGACY
	def_bool !PCI_DRIVERS_GENERIC
	select NO_GENERIC_PCI_IOPORT_MAP
	select PCI_DOMAINS if PCI

#
# 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
	  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>

config MMU
	bool
	default y

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
	default 8

config ARCH_MMAP_RND_COMPAT_BITS_MAX
	default 15

config I8253
	bool
	select CLKSRC_I8253
	select CLKEVT_I8253
	select MIPS_EXTERNAL_TIMER

config ZONE_DMA
	bool

config ZONE_DMA32
	bool

endmenu

config TRAD_SIGNALS
	bool

config MIPS32_COMPAT
	bool

config COMPAT
	bool

config SYSVIPC_COMPAT
	bool

config MIPS32_O32
	bool "Kernel support for o32 binaries"
	depends on 64BIT
	select ARCH_WANT_OLD_COMPAT_IPC
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
	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"
	depends on 64BIT
	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
	select COMPAT
	select MIPS32_COMPAT
	select SYSVIPC_COMPAT if SYSVIPC
	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.

menu "Power management options"

config ARCH_HIBERNATION_POSSIBLE
	def_bool y
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP

config ARCH_SUSPEND_POSSIBLE
	def_bool y
	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP

source "kernel/power/Kconfig"

endmenu

config MIPS_EXTERNAL_TIMER
	bool

menu "CPU Power Management"

if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
source "drivers/cpufreq/Kconfig"
endif

source "drivers/cpuidle/Kconfig"

endmenu

source "drivers/firmware/Kconfig"

source "arch/mips/kvm/Kconfig"

source "arch/mips/vdso/Kconfig"