xref: /openbmc/u-boot/arch/mips/Kconfig (revision 5ef337a0371e2b2c7905e7e20a38b6bfc80bb708)

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 ROM_EXCEPTION_VECTORS
	select SUPPORTS_BIG_ENDIAN
	select SUPPORTS_CPU_MIPS32_R1
	select SUPPORTS_CPU_MIPS32_R2
	select SUPPORTS_CPU_MIPS64_R1
	select SUPPORTS_CPU_MIPS64_R2
	select SUPPORTS_LITTLE_ENDIAN

config TARGET_MALTA
	bool "Support malta"
	select DM
	select DM_SERIAL
	select DYNAMIC_IO_PORT_BASE
	select MIPS_CM
	select MIPS_INSERT_BOOT_CONFIG
	select MIPS_L1_CACHE_SHIFT_6
	select MIPS_L2_CACHE
	select OF_CONTROL
	select OF_ISA_BUS
	select ROM_EXCEPTION_VECTORS
	select SUPPORTS_BIG_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 SUPPORTS_LITTLE_ENDIAN
	select SWAP_IO_SPACE
	imply CMD_DM

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

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

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

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

config TARGET_BOSTON
	bool "Support Boston"
	select DM
	select DM_SERIAL
	select MIPS_CM
	select MIPS_L1_CACHE_SHIFT_6
	select MIPS_L2_CACHE
	select OF_BOARD_SETUP
	select OF_CONTROL
	select ROM_EXCEPTION_VECTORS
	select SUPPORTS_BIG_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 SUPPORTS_LITTLE_ENDIAN
	imply CMD_DM

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

endchoice

source "board/imgtec/boston/Kconfig"
source "board/imgtec/malta/Kconfig"
source "board/imgtec/xilfpga/Kconfig"
source "board/micronas/vct/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.

config MIPS_CACHE_INDEX_BASE
	hex "Index base address for cache initialisation"
	default 0x80000000 if CPU_MIPS32
	default 0xffffffff80000000 if CPU_MIPS64
	help
	  This is the base address for a memory block, which is used for
	  initialising the cache lines. This is also the base address of a memory
	  block which is used for loading and filling cache lines when
	  SYS_MIPS_CACHE_INIT_RAM_LOAD is selected.
	  Normally this is CKSEG0. If the MIPS system needs to move this block
	  to some SRAM or ScratchPad RAM, adapt this option accordingly.

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.

config MIPS_INSERT_BOOT_CONFIG
	bool
	default n
	help
	  Enable this to insert some board-specific boot configuration in
	  the U-Boot binary at offset 0x10.

config MIPS_BOOT_CONFIG_WORD0
	hex
	depends on MIPS_INSERT_BOOT_CONFIG
	default 0x420 if TARGET_MALTA
	default 0x0
	help
	  Value which is inserted as boot config word 0.

config MIPS_BOOT_CONFIG_WORD1
	hex
	depends on MIPS_INSERT_BOOT_CONFIG
	default 0x0
	help
	  Value which is inserted as boot config word 1.

endif

endmenu