u-boot/arch/mips/Kconfig

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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_MSCC
bool "Support MSCC VCore-III"
select OF_CONTROL
select 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 ARCH_MTMIPS
bool "Support MediaTek MIPS platforms"
select CLK
imply CMD_DM
select DISPLAY_CPUINFO
select DM
imply DM_ETH
imply DM_GPIO
select DM_RESET
select DM_SERIAL
select PINCTRL
select PINMUX
select PINCONF
select RESET_MTMIPS
imply DM_SPI
imply DM_SPI_FLASH
select LAST_STAGE_INIT
select MIPS_TUNE_24KC
select OF_CONTROL
select ROM_EXCEPTION_VECTORS
select SUPPORTS_CPU_MIPS32_R1
select SUPPORTS_CPU_MIPS32_R2
select SUPPORTS_LITTLE_ENDIAN
select SUPPORT_SPL
config ARCH_JZ47XX
bool "Support Ingenic JZ47xx"
select SUPPORT_SPL
select OF_CONTROL
select DM
config ARCH_OCTEON
bool "Support Marvell Octeon CN7xxx platforms"
select CPU_CAVIUM_OCTEON
select DISPLAY_CPUINFO
select DMA_ADDR_T_64BIT
select DM
select DM_ETH
select DM_GPIO
select DM_I2C
select DM_SERIAL
select DM_SPI
select MIPS_L2_CACHE
select MIPS_MACH_EARLY_INIT
select MIPS_TUNE_OCTEON3
select ROM_EXCEPTION_VECTORS
select SUPPORTS_BIG_ENDIAN
select SUPPORTS_CPU_MIPS64_OCTEON
select PHYS_64BIT
select OF_CONTROL
select OF_LIVE
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/qemu-mips/Kconfig"
source "arch/mips/mach-ath79/Kconfig"
source "arch/mips/mach-mscc/Kconfig"
source "arch/mips/mach-bmips/Kconfig"
source "arch/mips/mach-jz47xx/Kconfig"
source "arch/mips/mach-pic32/Kconfig"
source "arch/mips/mach-mtmips/Kconfig"
source "arch/mips/mach-octeon/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.
config CPU_MIPS64_OCTEON
bool "Marvell Octeon series of CPUs"
depends on SUPPORTS_CPU_MIPS64_OCTEON
select 64BIT
help
Choose this option for Marvell Octeon CPUs. These CPUs are between
MIPS64 R5 and R6 with other extensions.
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.
config MIPS_MACH_EARLY_INIT
bool "Enable mach specific very early init code"
help
Use this to enable the call to mips_mach_early_init() very early
from start.S. This function can be used e.g. to do some very early
CPU / SoC intitialization or image copying. Its called very early
and at this stage the PC might not match the linking address
(CONFIG_TEXT_BASE) - no absolute jump done until this call.
config MIPS_CACHE_SETUP
bool "Allow generic start code to initialize and setup caches"
default n if SKIP_LOWLEVEL_INIT
default y
help
This allows the generic start code to invoke the generic initialization
of the CPU caches. Disabling this can be useful for RAM boot scenarios
(EJTAG, SPL payload) or for machines which don't need cache initialization
or which want to provide their own cache implementation.
If unsure, say yes.
config MIPS_CACHE_DISABLE
bool "Allow generic start code to initially disable caches"
default n if SKIP_LOWLEVEL_INIT
default y
help
This allows the generic start code to initially disable the CPU caches
and run uncached until the caches are initialized and enabled. Disabling
this can be useful on machines which don't need cache initialization or
which want to provide their own cache implementation.
If unsure, say yes.
config MIPS_RELOCATION_TABLE_SIZE
hex "Relocation table size"
range 0x100 0x10000
default "0x8000"
---help---
A table of relocation data will be appended to the U-Boot binary
and parsed in relocate_code() to fix up all offsets in the relocated
U-Boot.
This option allows the amount of space reserved for the table to be
adjusted in a range from 256 up to 64k. The default is 32k and should
be ok in most cases. Reduce this value to shrink the size of U-Boot
binary.
The build will fail and a valid size suggested if this is too small.
If unsure, leave at the default value.
config RESTORE_EXCEPTION_VECTOR_BASE
bool "Restore exception vector base before booting linux kernel"
default n
help
In U-Boot the exception vector base will be moved to top of memory,
to be used to display register dump when exception occurs.
But some old linux kernel does not honor the base set in CP0_EBASE.
A modified exception vector base will cause kernel crash.
This option will restore the exception vector base to its previous
value.
If unsure, say N.
config OVERRIDE_EXCEPTION_VECTOR_BASE
bool "Override the exception vector base to be restored"
depends on RESTORE_EXCEPTION_VECTOR_BASE
default n
help
Enable this option if you want to use a different exception vector
base rather than the previously saved one.
config NEW_EXCEPTION_VECTOR_BASE
hex "New exception vector base"
depends on OVERRIDE_EXCEPTION_VECTOR_BASE
range 0x80000000 0xbffff000
default 0x80000000
help
The exception vector base to be restored before booting linux kernel
config INIT_STACK_WITHOUT_MALLOC_F
bool "Do not reserve malloc space on initial stack"
default n
help
Enable this option if you don't want to reserve malloc space on
initial stack. This is useful if the initial stack can't hold large
malloc space. Platform should set the malloc_base later when DRAM is
ready to use.
config SPL_INIT_STACK_WITHOUT_MALLOC_F
bool "Do not reserve malloc space on initial stack in SPL"
default n
help
Enable this option if you don't want to reserve malloc space on
initial stack. This is useful if the initial stack can't hold large
malloc space. Platform should set the malloc_base later when DRAM is
ready to use.
config SPL_LOADER_SUPPORT
bool
default n
help
Enable this option if you want to use SPL loaders without DM enabled.
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 SUPPORTS_CPU_MIPS64_OCTEON
bool
config CPU_CAVIUM_OCTEON
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
default y if CPU_MIPS64_OCTEON
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 MIPS_TUNE_OCTEON3
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 MIPS_SRAM_INIT
bool
default n
depends on MIPS_INIT_STACK_IN_SRAM
help
Select this if the SRAM for initial stack needs to be initialized
before it can be used. If enabled, a function mips_sram_init() will
be called just before setup_stack_gd.
config DMA_ADDR_T_64BIT
bool
help
Select this to enable 64-bit DMA addressing
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_SCACHE_LINE_SIZE
int
default 0
help
The size of L2 cache 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 && \
SYS_SCACHE_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