# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/config-language.txt.
+# see Documentation/kbuild/kconfig-language.txt.
mainmenu "Linux/Xtensa Kernel Configuration"
bool
default n
+config ZONE_DMA
+ bool
+ default y
+
config XTENSA
bool
default y
+ select HAVE_IDE
help
Xtensa processors are 32-bit RISC machines designed by Tensilica
primarily for embedded systems. These processors are both
bool
default y
+config GENERIC_FIND_NEXT_BIT
+ bool
+ default y
+
+config GENERIC_HWEIGHT
+ bool
+ default y
+
config GENERIC_HARDIRQS
bool
default y
+config ARCH_HAS_ILOG2_U32
+ bool
+ default n
+
+config ARCH_HAS_ILOG2_U64
+ bool
+ default n
+
+config NO_IOPORT
+ def_bool y
+
+config HZ
+ int
+ default 100
+
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
menu "Processor type and features"
choice
prompt "Xtensa Processor Configuration"
- default XTENSA_CPU_LINUX_BE
+ default XTENSA_VARIANT_FSF
-config XTENSA_CPU_LINUX_BE
- bool "linux_be"
- ---help---
- The linux_be processor configuration is the baseline Xtensa
- configurations included in this kernel and also used by
- binutils, gcc, and gdb. It contains no TIE, no coprocessors,
- and the following configuration options:
-
- Code Density Option 2 Misc Special Registers
- NSA/NSAU Instructions 128-bit Data Bus Width
- Processor ID 8K, 2-way I and D Caches
- Zero-Overhead Loops 2 Inst Address Break Registers
- Big Endian 2 Data Address Break Registers
- 64 General-Purpose Registers JTAG Interface and Trace Port
- 17 Interrupts MMU w/ TLBs and Autorefill
- 3 Interrupt Levels 8 Autorefill Ways (I/D TLBs)
- 3 Timers Unaligned Exceptions
+config XTENSA_VARIANT_FSF
+ bool "fsf - default (not generic) configuration"
+
+config XTENSA_VARIANT_DC232B
+ bool "dc232b - Diamond 232L Standard Core Rev.B (LE)"
+ help
+ This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE).
endchoice
config MMU
your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
VESA. If you have PCI, say Y, otherwise N.
- The PCI-HOWTO, available from
- <http://www.linuxdoc.org/docs.html#howto>, contains valuable
- information about which PCI hardware does work under Linux and which
- doesn't
-
source "drivers/pci/Kconfig"
config HOTPLUG
plugged into slots found on all modern laptop computers. Another
example, used on modern desktops as well as laptops, is USB.
- Enable HOTPLUG and KMOD, and build a modular kernel. Get agent
- software (at <http://linux-hotplug.sourceforge.net/>) and install it.
+ 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.
endmenu
-menu "Exectuable file formats"
+menu "Executable file formats"
# only elf supported
config KCORE_ELF
bool "Embed root filesystem ramdisk into the kernel"
config EMBEDDED_RAMDISK_IMAGE
- string "Filename of gziped ramdisk image"
+ string "Filename of gzipped ramdisk image"
depends on EMBEDDED_RAMDISK
default "ramdisk.gz"
help