| config FRAME_POINTER |
| def_bool n |
| |
| config ZONE_DMA |
| def_bool y |
| |
| config XTENSA |
| def_bool y |
| select HAVE_IDE |
| select HAVE_GENERIC_HARDIRQS |
| select GENERIC_IRQ_SHOW |
| select GENERIC_CPU_DEVICES |
| help |
| Xtensa processors are 32-bit RISC machines designed by Tensilica |
| primarily for embedded systems. These processors are both |
| configurable and extensible. The Linux port to the Xtensa |
| architecture supports all processor configurations and extensions, |
| with reasonable minimum requirements. The Xtensa Linux project has |
| a home page at <http://xtensa.sourceforge.net/>. |
| |
| config RWSEM_XCHGADD_ALGORITHM |
| def_bool y |
| |
| config GENERIC_HWEIGHT |
| def_bool y |
| |
| config GENERIC_GPIO |
| def_bool y |
| |
| config ARCH_HAS_ILOG2_U32 |
| def_bool n |
| |
| config ARCH_HAS_ILOG2_U64 |
| def_bool n |
| |
| config NO_IOPORT |
| def_bool y |
| |
| config HZ |
| int |
| default 100 |
| |
| source "init/Kconfig" |
| source "kernel/Kconfig.freezer" |
| |
| config MMU |
| def_bool n |
| |
| config VARIANT_IRQ_SWITCH |
| def_bool n |
| |
| menu "Processor type and features" |
| |
| choice |
| prompt "Xtensa Processor Configuration" |
| default XTENSA_VARIANT_FSF |
| |
| config XTENSA_VARIANT_FSF |
| bool "fsf - default (not generic) configuration" |
| select MMU |
| |
| config XTENSA_VARIANT_DC232B |
| bool "dc232b - Diamond 232L Standard Core Rev.B (LE)" |
| select MMU |
| help |
| This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE). |
| |
| config XTENSA_VARIANT_S6000 |
| bool "s6000 - Stretch software configurable processor" |
| select VARIANT_IRQ_SWITCH |
| select ARCH_REQUIRE_GPIOLIB |
| select XTENSA_CALIBRATE_CCOUNT |
| endchoice |
| |
| config XTENSA_UNALIGNED_USER |
| bool "Unaligned memory access in use space" |
| help |
| The Xtensa architecture currently does not handle unaligned |
| memory accesses in hardware but through an exception handler. |
| Per default, unaligned memory accesses are disabled in user space. |
| |
| Say Y here to enable unaligned memory access in user space. |
| |
| source "kernel/Kconfig.preempt" |
| |
| config MATH_EMULATION |
| bool "Math emulation" |
| help |
| Can we use information of configuration file? |
| |
| endmenu |
| |
| config XTENSA_CALIBRATE_CCOUNT |
| def_bool n |
| help |
| On some platforms (XT2000, for example), the CPU clock rate can |
| vary. The frequency can be determined, however, by measuring |
| against a well known, fixed frequency, such as an UART oscillator. |
| |
| config SERIAL_CONSOLE |
| def_bool n |
| |
| config XTENSA_ISS_NETWORK |
| def_bool n |
| |
| menu "Bus options" |
| |
| config PCI |
| bool "PCI support" |
| default y |
| help |
| Find out whether you have a PCI motherboard. PCI is the name of a |
| bus system, i.e. the way the CPU talks to the other stuff inside |
| your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or |
| VESA. If you have PCI, say Y, otherwise N. |
| |
| source "drivers/pci/Kconfig" |
| |
| endmenu |
| |
| menu "Platform options" |
| |
| choice |
| prompt "Xtensa System Type" |
| default XTENSA_PLATFORM_ISS |
| |
| config XTENSA_PLATFORM_ISS |
| bool "ISS" |
| select XTENSA_CALIBRATE_CCOUNT |
| select SERIAL_CONSOLE |
| select XTENSA_ISS_NETWORK |
| help |
| ISS is an acronym for Tensilica's Instruction Set Simulator. |
| |
| config XTENSA_PLATFORM_XT2000 |
| bool "XT2000" |
| help |
| XT2000 is the name of Tensilica's feature-rich emulation platform. |
| This hardware is capable of running a full Linux distribution. |
| |
| config XTENSA_PLATFORM_S6105 |
| bool "S6105" |
| select SERIAL_CONSOLE |
| |
| endchoice |
| |
| |
| config XTENSA_CPU_CLOCK |
| int "CPU clock rate [MHz]" |
| depends on !XTENSA_CALIBRATE_CCOUNT |
| default 16 |
| |
| config GENERIC_CALIBRATE_DELAY |
| bool "Auto calibration of the BogoMIPS value" |
| help |
| The BogoMIPS value can easily be derived from the CPU frequency. |
| |
| config CMDLINE_BOOL |
| bool "Default bootloader kernel arguments" |
| |
| config CMDLINE |
| string "Initial kernel command string" |
| depends on CMDLINE_BOOL |
| default "console=ttyS0,38400 root=/dev/ram" |
| help |
| On some architectures (EBSA110 and CATS), there is currently no way |
| for the boot loader to pass arguments to the kernel. For these |
| architectures, you should supply some command-line options at build |
| time by entering them here. As a minimum, you should specify the |
| memory size and the root device (e.g., mem=64M root=/dev/nfs). |
| |
| source "mm/Kconfig" |
| |
| config HOTPLUG |
| bool "Support for hot-pluggable devices" |
| help |
| Say Y here if you want to plug devices into your computer while |
| the system is running, and be able to use them quickly. In many |
| cases, the devices can likewise be unplugged at any time too. |
| |
| One well known example of this is PCMCIA- or PC-cards, credit-card |
| size devices such as network cards, modems or hard drives which are |
| plugged into slots found on all modern laptop computers. Another |
| example, used on modern desktops as well as laptops, is USB. |
| |
| Enable HOTPLUG and build a modular kernel. Get agent software |
| (from <http://linux-hotplug.sourceforge.net/>) and install it. |
| Then your kernel will automatically call out to a user mode "policy |
| agent" (/sbin/hotplug) to load modules and set up software needed |
| to use devices as you hotplug them. |
| |
| source "drivers/pcmcia/Kconfig" |
| |
| source "drivers/pci/hotplug/Kconfig" |
| |
| endmenu |
| |
| menu "Executable file formats" |
| |
| # only elf supported |
| config KCORE_ELF |
| def_bool y |
| depends on PROC_FS |
| help |
| If you enabled support for /proc file system then the file |
| /proc/kcore will contain the kernel core image in ELF format. This |
| can be used in gdb: |
| |
| $ cd /usr/src/linux ; gdb vmlinux /proc/kcore |
| |
| This is especially useful if you have compiled the kernel with the |
| "-g" option to preserve debugging information. It is mainly used |
| for examining kernel data structures on the live kernel. |
| |
| source "fs/Kconfig.binfmt" |
| |
| endmenu |
| |
| source "net/Kconfig" |
| |
| source "drivers/Kconfig" |
| |
| source "fs/Kconfig" |
| |
| menu "Xtensa initrd options" |
| depends on BLK_DEV_INITRD |
| |
| config EMBEDDED_RAMDISK |
| bool "Embed root filesystem ramdisk into the kernel" |
| |
| config EMBEDDED_RAMDISK_IMAGE |
| string "Filename of gzipped ramdisk image" |
| depends on EMBEDDED_RAMDISK |
| default "ramdisk.gz" |
| help |
| This is the filename of the ramdisk image to be built into the |
| kernel. Relative pathnames are relative to arch/xtensa/boot/ramdisk/. |
| The ramdisk image is not part of the kernel distribution; you must |
| provide one yourself. |
| endmenu |
| |
| source "arch/xtensa/Kconfig.debug" |
| |
| source "security/Kconfig" |
| |
| source "crypto/Kconfig" |
| |
| source "lib/Kconfig" |
| |
| |
