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https://github.com/AsahiLinux/u-boot
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dd7c72006e
Current MIPS systems do not require that loads be performed to force the parity of cache lines, a simple invalidate by clearing the tag for each line will suffice. Thus this patch makes the loads & subsequent second invalidation conditional upon the CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD option, and defines that for existing mips32 targets. Exceptions are malta where this is known to be unnecessary, and qemu-mips where caches are not implemented. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
196 lines
4.3 KiB
Text
196 lines
4.3 KiB
Text
menu "MIPS architecture"
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depends on MIPS
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config SYS_ARCH
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default "mips"
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config SYS_CPU
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default "mips32" if CPU_MIPS32_R1 || CPU_MIPS32_R2
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default "mips64" if CPU_MIPS64_R1 || CPU_MIPS64_R2
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config USE_PRIVATE_LIBGCC
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default y
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choice
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prompt "Target select"
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config TARGET_QEMU_MIPS
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bool "Support qemu-mips"
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SUPPORTS_CPU_MIPS64_R1
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select SUPPORTS_CPU_MIPS64_R2
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config TARGET_MALTA
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bool "Support malta"
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SWAP_IO_SPACE
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config TARGET_VCT
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bool "Support vct"
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SYS_MIPS_CACHE_INIT_RAM_LOAD
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config TARGET_DBAU1X00
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bool "Support dbau1x00"
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select SUPPORTS_BIG_ENDIAN
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SYS_MIPS_CACHE_INIT_RAM_LOAD
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config TARGET_PB1X00
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bool "Support pb1x00"
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select SUPPORTS_LITTLE_ENDIAN
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select SUPPORTS_CPU_MIPS32_R1
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select SUPPORTS_CPU_MIPS32_R2
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select SYS_MIPS_CACHE_INIT_RAM_LOAD
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endchoice
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source "board/dbau1x00/Kconfig"
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source "board/imgtec/malta/Kconfig"
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source "board/micronas/vct/Kconfig"
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source "board/pb1x00/Kconfig"
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source "board/qemu-mips/Kconfig"
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if MIPS
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choice
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prompt "Endianness selection"
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help
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Some MIPS boards can be configured for either little or big endian
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byte order. These modes require different U-Boot images. In general there
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is one preferred byteorder for a particular system but some systems are
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just as commonly used in the one or the other endianness.
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config SYS_BIG_ENDIAN
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bool "Big endian"
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depends on SUPPORTS_BIG_ENDIAN
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config SYS_LITTLE_ENDIAN
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bool "Little endian"
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depends on SUPPORTS_LITTLE_ENDIAN
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endchoice
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choice
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prompt "CPU selection"
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default CPU_MIPS32_R2
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config CPU_MIPS32_R1
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bool "MIPS32 Release 1"
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depends on SUPPORTS_CPU_MIPS32_R1
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select 32BIT
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help
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Choose this option to build an U-Boot for release 1 or later of the
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MIPS32 architecture.
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config CPU_MIPS32_R2
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bool "MIPS32 Release 2"
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depends on SUPPORTS_CPU_MIPS32_R2
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select 32BIT
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help
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Choose this option to build an U-Boot for release 2 or later of the
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MIPS32 architecture.
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config CPU_MIPS64_R1
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bool "MIPS64 Release 1"
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depends on SUPPORTS_CPU_MIPS64_R1
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select 64BIT
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help
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Choose this option to build a kernel for release 1 or later of the
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MIPS64 architecture.
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config CPU_MIPS64_R2
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bool "MIPS64 Release 2"
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depends on SUPPORTS_CPU_MIPS64_R2
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select 64BIT
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help
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Choose this option to build a kernel for release 2 or later of the
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MIPS64 architecture.
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endchoice
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menu "OS boot interface"
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config MIPS_BOOT_CMDLINE_LEGACY
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bool "Hand over legacy command line to Linux kernel"
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default y
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help
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Enable this option if you want U-Boot to hand over the Yamon-style
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command line to the kernel. All bootargs will be prepared as argc/argv
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compatible list. The argument count (argc) is stored in register $a0.
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The address of the argument list (argv) is stored in register $a1.
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config MIPS_BOOT_ENV_LEGACY
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bool "Hand over legacy environment to Linux kernel"
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default y
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help
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Enable this option if you want U-Boot to hand over the Yamon-style
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environment to the kernel. Information like memory size, initrd
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address and size will be prepared as zero-terminated key/value list.
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The address of the enviroment is stored in register $a2.
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config MIPS_BOOT_FDT
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bool "Hand over a flattened device tree to Linux kernel (INCOMPLETE)"
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default n
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help
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Enable this option if you want U-Boot to hand over a flattened
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device tree to the kernel.
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Note: the final hand over to the kernel is not yet implemented. After
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the community agreed on the MIPS boot interface for device trees,
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the corresponding code will be added.
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endmenu
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config SUPPORTS_BIG_ENDIAN
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bool
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config SUPPORTS_LITTLE_ENDIAN
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bool
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config SUPPORTS_CPU_MIPS32_R1
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bool
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config SUPPORTS_CPU_MIPS32_R2
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bool
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config SUPPORTS_CPU_MIPS64_R1
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bool
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config SUPPORTS_CPU_MIPS64_R2
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bool
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config CPU_MIPS32
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bool
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default y if CPU_MIPS32_R1 || CPU_MIPS32_R2
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config CPU_MIPS64
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bool
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default y if CPU_MIPS64_R1 || CPU_MIPS64_R2
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config 32BIT
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bool
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config 64BIT
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bool
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config SWAP_IO_SPACE
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bool
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config SYS_MIPS_CACHE_INIT_RAM_LOAD
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bool
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endif
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endmenu
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