linux-arkmicro/u-boot/arch/mips/Kconfig

menu "MIPS architecture"
	depends on MIPS

config SYS_ARCH
	default "mips"

config SYS_CPU
	default "mips32" if CPU_MIPS32
	default "mips64" if CPU_MIPS64

choice
	prompt "Target select"
	optional

config TARGET_QEMU_MIPS
	bool "Support qemu-mips"
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SUPPORTS_CPU_MIPS64_R1
	select SUPPORTS_CPU_MIPS64_R2
	select ROM_EXCEPTION_VECTORS

config TARGET_MALTA
	bool "Support malta"
	select DM
	select DM_SERIAL
	select DYNAMIC_IO_PORT_BASE
	select MIPS_CM
	select MIPS_L2_CACHE
	select OF_CONTROL
	select OF_ISA_BUS
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SUPPORTS_CPU_MIPS32_R6
	select SUPPORTS_CPU_MIPS64_R1
	select SUPPORTS_CPU_MIPS64_R2
	select SUPPORTS_CPU_MIPS64_R6
	select SWAP_IO_SPACE
	select MIPS_L1_CACHE_SHIFT_6
	select ROM_EXCEPTION_VECTORS

config TARGET_VCT
	bool "Support vct"
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SYS_MIPS_CACHE_INIT_RAM_LOAD
	select ROM_EXCEPTION_VECTORS

config TARGET_DBAU1X00
	bool "Support dbau1x00"
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SYS_MIPS_CACHE_INIT_RAM_LOAD
	select ROM_EXCEPTION_VECTORS
	select MIPS_TUNE_4KC

config TARGET_PB1X00
	bool "Support pb1x00"
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SYS_MIPS_CACHE_INIT_RAM_LOAD
	select ROM_EXCEPTION_VECTORS
	select MIPS_TUNE_4KC

config ARCH_ATH79
	bool "Support QCA/Atheros ath79"
	select OF_CONTROL
	select DM

config ARCH_BMIPS
	bool "Support BMIPS SoCs"
	select OF_CONTROL
	select DM
	select CLK
	select CPU
	select RAM
	select SYSRESET

config MACH_PIC32
	bool "Support Microchip PIC32"
	select OF_CONTROL
	select DM

config TARGET_BOSTON
	bool "Support Boston"
	select DM
	select DM_SERIAL
	select OF_CONTROL
	select MIPS_CM
	select MIPS_L1_CACHE_SHIFT_6
	select MIPS_L2_CACHE
	select OF_BOARD_SETUP
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SUPPORTS_CPU_MIPS32_R6
	select SUPPORTS_CPU_MIPS64_R1
	select SUPPORTS_CPU_MIPS64_R2
	select SUPPORTS_CPU_MIPS64_R6
	select ROM_EXCEPTION_VECTORS

config TARGET_XILFPGA
	bool "Support Imagination Xilfpga"
	select OF_CONTROL
	select DM
	select DM_SERIAL
	select DM_GPIO
	select DM_ETH
	select SUPPORTS_LITTLE_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select MIPS_L1_CACHE_SHIFT_4
	select ROM_EXCEPTION_VECTORS
	help
	  This supports IMGTEC MIPSfpga platform

endchoice

source "board/dbau1x00/Kconfig"
source "board/imgtec/boston/Kconfig"
source "board/imgtec/malta/Kconfig"
source "board/imgtec/xilfpga/Kconfig"
source "board/micronas/vct/Kconfig"
source "board/pb1x00/Kconfig"
source "board/qemu-mips/Kconfig"
source "arch/mips/mach-ath79/Kconfig"
source "arch/mips/mach-bmips/Kconfig"
source "arch/mips/mach-pic32/Kconfig"

if MIPS

choice
	prompt "Endianness selection"
	help
	  Some MIPS boards can be configured for either little or big endian
	  byte order. These modes require different U-Boot images. 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 SYS_BIG_ENDIAN
	bool "Big endian"
	depends on SUPPORTS_BIG_ENDIAN

config SYS_LITTLE_ENDIAN
	bool "Little endian"
	depends on SUPPORTS_LITTLE_ENDIAN

endchoice

choice
	prompt "CPU selection"
	default CPU_MIPS32_R2

config CPU_MIPS32_R1
	bool "MIPS32 Release 1"
	depends on SUPPORTS_CPU_MIPS32_R1
	select 32BIT
	help
	  Choose this option to build an U-Boot for release 1 through 5 of the
	  MIPS32 architecture.

config CPU_MIPS32_R2
	bool "MIPS32 Release 2"
	depends on SUPPORTS_CPU_MIPS32_R2
	select 32BIT
	help
	  Choose this option to build an U-Boot for release 2 through 5 of the
	  MIPS32 architecture.

config CPU_MIPS32_R6
	bool "MIPS32 Release 6"
	depends on SUPPORTS_CPU_MIPS32_R6
	select 32BIT
	help
	  Choose this option to build an U-Boot for release 6 or later of the
	  MIPS32 architecture.

config CPU_MIPS64_R1
	bool "MIPS64 Release 1"
	depends on SUPPORTS_CPU_MIPS64_R1
	select 64BIT
	help
	  Choose this option to build a kernel for release 1 through 5 of the
	  MIPS64 architecture.

config CPU_MIPS64_R2
	bool "MIPS64 Release 2"
	depends on SUPPORTS_CPU_MIPS64_R2
	select 64BIT
	help
	  Choose this option to build a kernel for release 2 through 5 of the
	  MIPS64 architecture.

config CPU_MIPS64_R6
	bool "MIPS64 Release 6"
	depends on SUPPORTS_CPU_MIPS64_R6
	select 64BIT
	help
	  Choose this option to build a kernel for release 6 or later of the
	  MIPS64 architecture.

endchoice

menu "General setup"

config ROM_EXCEPTION_VECTORS
	bool "Build U-Boot image with exception vectors"
	help
	  Enable this to include exception vectors in the U-Boot image. This is
	  required if the U-Boot entry point is equal to the address of the
	  CPU reset exception vector (e.g. U-Boot as ROM loader in Qemu,
	  U-Boot booted from parallel NOR flash).
	  Disable this, if the U-Boot image is booted from DRAM (e.g. by SPL).
	  In that case the image size will be reduced by 0x500 bytes.

config MIPS_CM_BASE
	hex "MIPS CM GCR Base Address"
	depends on MIPS_CM
	default 0x16100000 if TARGET_BOSTON
	default 0x1fbf8000
	help
	  The physical base address at which to map the MIPS Coherence Manager
	  Global Configuration Registers (GCRs). This should be set such that
	  the GCRs occupy a region of the physical address space which is
	  otherwise unused, or at minimum that software doesn't need to access.

endmenu

menu "OS boot interface"

config MIPS_BOOT_CMDLINE_LEGACY
	bool "Hand over legacy command line to Linux kernel"
	default y
	help
	  Enable this option if you want U-Boot to hand over the Yamon-style
	  command line to the kernel. All bootargs will be prepared as argc/argv
	  compatible list. The argument count (argc) is stored in register $a0.
	  The address of the argument list (argv) is stored in register $a1.

config MIPS_BOOT_ENV_LEGACY
	bool "Hand over legacy environment to Linux kernel"
	default y
	help
	  Enable this option if you want U-Boot to hand over the Yamon-style
	  environment to the kernel. Information like memory size, initrd
	  address and size will be prepared as zero-terminated key/value list.
	  The address of the environment is stored in register $a2.

config MIPS_BOOT_FDT
	bool "Hand over a flattened device tree to Linux kernel"
	default n
	help
	  Enable this option if you want U-Boot to hand over a flattened
	  device tree to the kernel. According to UHI register $a0 will be set
	  to -2 and the FDT address is stored in $a1.

endmenu

config SUPPORTS_BIG_ENDIAN
	bool

config SUPPORTS_LITTLE_ENDIAN
	bool

config SUPPORTS_CPU_MIPS32_R1
	bool

config SUPPORTS_CPU_MIPS32_R2
	bool

config SUPPORTS_CPU_MIPS32_R6
	bool

config SUPPORTS_CPU_MIPS64_R1
	bool

config SUPPORTS_CPU_MIPS64_R2
	bool

config SUPPORTS_CPU_MIPS64_R6
	bool

config CPU_MIPS32
	bool
	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6

config CPU_MIPS64
	bool
	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6

config MIPS_TUNE_4KC
	bool

config MIPS_TUNE_14KC
	bool

config MIPS_TUNE_24KC
	bool

config MIPS_TUNE_34KC
	bool

config MIPS_TUNE_74KC
	bool

config 32BIT
	bool

config 64BIT
	bool

config SWAP_IO_SPACE
	bool

config SYS_MIPS_CACHE_INIT_RAM_LOAD
	bool

config MIPS_INIT_STACK_IN_SRAM
	bool
	default n
	help
	  Select this if the initial stack frame could be setup in SRAM.
	  Normally the initial stack frame is set up in DRAM which is often
	  only available after lowlevel_init. With this option the initial
	  stack frame and the early C environment is set up before
	  lowlevel_init. Thus lowlevel_init does not need to be implemented
	  in assembler.

config SYS_DCACHE_SIZE
	int
	default 0
	help
	  The total size of the L1 Dcache, if known at compile time.

config SYS_DCACHE_LINE_SIZE
	int
	default 0
	help
	  The size of L1 Dcache lines, if known at compile time.

config SYS_ICACHE_SIZE
	int
	default 0
	help
	  The total size of the L1 ICache, if known at compile time.

config SYS_ICACHE_LINE_SIZE
	int
	default 0
	help
	  The size of L1 Icache lines, if known at compile time.

config SYS_CACHE_SIZE_AUTO
	def_bool y if SYS_DCACHE_SIZE = 0 && SYS_ICACHE_SIZE = 0 && \
		SYS_DCACHE_LINE_SIZE = 0 && SYS_ICACHE_LINE_SIZE = 0
	help
	  Select this (or let it be auto-selected by not defining any cache
	  sizes) in order to allow U-Boot to automatically detect the sizes
	  of caches at runtime. This has a small cost in code size & runtime
	  so if you know the cache configuration for your system at compile
	  time it would be beneficial to configure it.

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 MIPS_L2_CACHE
	bool
	help
	  Select this if your system includes an L2 cache and you want U-Boot
	  to initialise & maintain it.

config DYNAMIC_IO_PORT_BASE
	bool

config MIPS_CM
	bool
	help
	  Select this if your system contains a MIPS Coherence Manager and you
	  wish U-Boot to configure it or make use of it to retrieve system
	  information such as cache configuration.

endif

endmenu