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The Avnet LX60/LX110/LX200 board is an FPGA board that can be configured with an Xtensa processor and an OpenCores Ethernet device. Signed-off-by: Chris Zankel <chris@zankel.net> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
244 lines
5.5 KiB
Text
244 lines
5.5 KiB
Text
config FRAME_POINTER
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def_bool n
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config ZONE_DMA
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def_bool y
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config XTENSA
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def_bool y
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select HAVE_IDE
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select GENERIC_ATOMIC64
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select HAVE_GENERIC_HARDIRQS
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select GENERIC_IRQ_SHOW
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select GENERIC_CPU_DEVICES
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select MODULES_USE_ELF_RELA
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select GENERIC_PCI_IOMAP
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select GENERIC_KERNEL_THREAD
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select GENERIC_KERNEL_EXECVE
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select ARCH_WANT_OPTIONAL_GPIOLIB
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select CLONE_BACKWARDS
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select IRQ_DOMAIN
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help
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Xtensa processors are 32-bit RISC machines designed by Tensilica
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primarily for embedded systems. These processors are both
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configurable and extensible. The Linux port to the Xtensa
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architecture supports all processor configurations and extensions,
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with reasonable minimum requirements. The Xtensa Linux project has
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a home page at <http://xtensa.sourceforge.net/>.
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config RWSEM_XCHGADD_ALGORITHM
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def_bool y
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config GENERIC_HWEIGHT
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def_bool y
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config GENERIC_GPIO
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def_bool y
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config ARCH_HAS_ILOG2_U32
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def_bool n
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config ARCH_HAS_ILOG2_U64
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def_bool n
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config NO_IOPORT
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def_bool n
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config HZ
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int
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default 100
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source "init/Kconfig"
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source "kernel/Kconfig.freezer"
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config MMU
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def_bool n
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config VARIANT_IRQ_SWITCH
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def_bool n
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menu "Processor type and features"
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choice
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prompt "Xtensa Processor Configuration"
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default XTENSA_VARIANT_FSF
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config XTENSA_VARIANT_FSF
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bool "fsf - default (not generic) configuration"
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select MMU
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config XTENSA_VARIANT_DC232B
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bool "dc232b - Diamond 232L Standard Core Rev.B (LE)"
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select MMU
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help
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This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
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config XTENSA_VARIANT_S6000
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bool "s6000 - Stretch software configurable processor"
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select VARIANT_IRQ_SWITCH
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select ARCH_REQUIRE_GPIOLIB
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select XTENSA_CALIBRATE_CCOUNT
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endchoice
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config XTENSA_UNALIGNED_USER
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bool "Unaligned memory access in use space"
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help
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The Xtensa architecture currently does not handle unaligned
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memory accesses in hardware but through an exception handler.
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Per default, unaligned memory accesses are disabled in user space.
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Say Y here to enable unaligned memory access in user space.
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source "kernel/Kconfig.preempt"
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config MATH_EMULATION
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bool "Math emulation"
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help
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Can we use information of configuration file?
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endmenu
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config XTENSA_CALIBRATE_CCOUNT
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def_bool n
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help
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On some platforms (XT2000, for example), the CPU clock rate can
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vary. The frequency can be determined, however, by measuring
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against a well known, fixed frequency, such as an UART oscillator.
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config SERIAL_CONSOLE
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def_bool n
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config XTENSA_ISS_NETWORK
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def_bool n
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menu "Bus options"
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config PCI
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bool "PCI support"
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default y
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help
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Find out whether you have a PCI motherboard. PCI is the name of a
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bus system, i.e. the way the CPU talks to the other stuff inside
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your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
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VESA. If you have PCI, say Y, otherwise N.
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source "drivers/pci/Kconfig"
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endmenu
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menu "Platform options"
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choice
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prompt "Xtensa System Type"
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default XTENSA_PLATFORM_ISS
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config XTENSA_PLATFORM_ISS
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bool "ISS"
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select XTENSA_CALIBRATE_CCOUNT
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select SERIAL_CONSOLE
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select XTENSA_ISS_NETWORK
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help
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ISS is an acronym for Tensilica's Instruction Set Simulator.
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config XTENSA_PLATFORM_XT2000
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bool "XT2000"
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help
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XT2000 is the name of Tensilica's feature-rich emulation platform.
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This hardware is capable of running a full Linux distribution.
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config XTENSA_PLATFORM_S6105
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bool "S6105"
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select SERIAL_CONSOLE
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select NO_IOPORT
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config XTENSA_PLATFORM_XTFPGA
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bool "XTFPGA"
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select SERIAL_CONSOLE
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select ETHOC
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select XTENSA_CALIBRATE_CCOUNT
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help
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XTFPGA is the name of Tensilica board family (LX60, LX110, LX200, ML605).
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This hardware is capable of running a full Linux distribution.
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endchoice
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config XTENSA_CPU_CLOCK
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int "CPU clock rate [MHz]"
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depends on !XTENSA_CALIBRATE_CCOUNT
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default 16
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config GENERIC_CALIBRATE_DELAY
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bool "Auto calibration of the BogoMIPS value"
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help
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The BogoMIPS value can easily be derived from the CPU frequency.
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config CMDLINE_BOOL
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bool "Default bootloader kernel arguments"
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config CMDLINE
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string "Initial kernel command string"
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depends on CMDLINE_BOOL
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default "console=ttyS0,38400 root=/dev/ram"
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help
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On some architectures (EBSA110 and CATS), there is currently no way
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for the boot loader to pass arguments to the kernel. For these
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architectures, you should supply some command-line options at build
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time by entering them here. As a minimum, you should specify the
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memory size and the root device (e.g., mem=64M root=/dev/nfs).
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config USE_OF
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bool "Flattened Device Tree support"
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select OF
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select OF_EARLY_FLATTREE
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help
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Include support for flattened device tree machine descriptions.
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config BUILTIN_DTB
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string "DTB to build into the kernel image"
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depends on OF
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source "mm/Kconfig"
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source "drivers/pcmcia/Kconfig"
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source "drivers/pci/hotplug/Kconfig"
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endmenu
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menu "Executable file formats"
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# only elf supported
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config KCORE_ELF
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def_bool y
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depends on PROC_FS
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help
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If you enabled support for /proc file system then the file
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/proc/kcore will contain the kernel core image in ELF format. This
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can be used in gdb:
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$ cd /usr/src/linux ; gdb vmlinux /proc/kcore
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This is especially useful if you have compiled the kernel with the
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"-g" option to preserve debugging information. It is mainly used
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for examining kernel data structures on the live kernel.
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source "fs/Kconfig.binfmt"
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endmenu
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source "net/Kconfig"
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/xtensa/Kconfig.debug"
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source "security/Kconfig"
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source "crypto/Kconfig"
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source "lib/Kconfig"
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