forked from Minki/linux
8152a74bc0
As CPUs are migrated over to more fully-featured clock frameworks of their own and off of the legacy CPG code, they no longer have any real need for defining the PCLK value. The PCLK define in itself is already fairly misleading, as many boards get their input clocks from different sources, making this value fairly arbitrary anyways. Outside of the legacy CPG clock framework, the only place where this value is used is for deriving CLOCK_TICK_RATE, which we set back to the legacy PIT value that it was before the PCLK definitions were added in the first place. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
868 lines
19 KiB
Plaintext
868 lines
19 KiB
Plaintext
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see Documentation/kbuild/kconfig-language.txt.
|
|
#
|
|
|
|
mainmenu "Linux/SuperH Kernel Configuration"
|
|
|
|
config SUPERH
|
|
def_bool y
|
|
select EMBEDDED
|
|
select HAVE_CLK
|
|
select HAVE_IDE
|
|
select HAVE_LMB
|
|
select HAVE_OPROFILE
|
|
select HAVE_GENERIC_DMA_COHERENT
|
|
select HAVE_IOREMAP_PROT if MMU
|
|
select HAVE_ARCH_TRACEHOOK
|
|
select HAVE_DMA_API_DEBUG
|
|
select HAVE_DMA_ATTRS
|
|
select HAVE_PERF_EVENTS
|
|
select PERF_USE_VMALLOC
|
|
select HAVE_KERNEL_GZIP
|
|
select HAVE_KERNEL_BZIP2
|
|
select HAVE_KERNEL_LZMA
|
|
select HAVE_SYSCALL_TRACEPOINTS
|
|
select RTC_LIB
|
|
select GENERIC_ATOMIC64
|
|
help
|
|
The SuperH is a RISC processor targeted for use in embedded systems
|
|
and consumer electronics; it was also used in the Sega Dreamcast
|
|
gaming console. The SuperH port has a home page at
|
|
<http://www.linux-sh.org/>.
|
|
|
|
config SUPERH32
|
|
def_bool ARCH = "sh"
|
|
select HAVE_KPROBES
|
|
select HAVE_KRETPROBES
|
|
select HAVE_FUNCTION_TRACER
|
|
select HAVE_FTRACE_MCOUNT_RECORD
|
|
select HAVE_DYNAMIC_FTRACE
|
|
select HAVE_FUNCTION_TRACE_MCOUNT_TEST
|
|
select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
|
|
select HAVE_FUNCTION_GRAPH_TRACER
|
|
select HAVE_ARCH_KGDB
|
|
select ARCH_HIBERNATION_POSSIBLE if MMU
|
|
|
|
config SUPERH64
|
|
def_bool ARCH = "sh64"
|
|
|
|
config ARCH_DEFCONFIG
|
|
string
|
|
default "arch/sh/configs/shx3_defconfig" if SUPERH32
|
|
default "arch/sh/configs/cayman_defconfig" if SUPERH64
|
|
|
|
config RWSEM_GENERIC_SPINLOCK
|
|
def_bool y
|
|
|
|
config RWSEM_XCHGADD_ALGORITHM
|
|
bool
|
|
|
|
config GENERIC_BUG
|
|
def_bool y
|
|
depends on BUG && SUPERH32
|
|
|
|
config GENERIC_CSUM
|
|
def_bool y
|
|
depends on SUPERH64
|
|
|
|
config GENERIC_FIND_NEXT_BIT
|
|
def_bool y
|
|
|
|
config GENERIC_HWEIGHT
|
|
def_bool y
|
|
|
|
config GENERIC_HARDIRQS
|
|
def_bool y
|
|
|
|
config GENERIC_HARDIRQS_NO__DO_IRQ
|
|
def_bool y
|
|
|
|
config GENERIC_IRQ_PROBE
|
|
def_bool y
|
|
|
|
config IRQ_PER_CPU
|
|
def_bool y
|
|
|
|
config GENERIC_GPIO
|
|
def_bool n
|
|
|
|
config GENERIC_CALIBRATE_DELAY
|
|
bool
|
|
|
|
config GENERIC_IOMAP
|
|
bool
|
|
|
|
config GENERIC_TIME
|
|
def_bool y
|
|
|
|
config GENERIC_CLOCKEVENTS
|
|
def_bool y
|
|
|
|
config GENERIC_CLOCKEVENTS_BROADCAST
|
|
bool
|
|
|
|
config GENERIC_CMOS_UPDATE
|
|
def_bool y
|
|
depends on SH_SH03 || SH_DREAMCAST
|
|
|
|
config GENERIC_LOCKBREAK
|
|
def_bool y
|
|
depends on SMP && PREEMPT
|
|
|
|
config SYS_SUPPORTS_PM
|
|
bool
|
|
depends on !SMP
|
|
|
|
config ARCH_SUSPEND_POSSIBLE
|
|
def_bool n
|
|
|
|
config ARCH_HIBERNATION_POSSIBLE
|
|
def_bool n
|
|
|
|
config SYS_SUPPORTS_APM_EMULATION
|
|
bool
|
|
select ARCH_SUSPEND_POSSIBLE
|
|
|
|
config SYS_SUPPORTS_HUGETLBFS
|
|
bool
|
|
|
|
config SYS_SUPPORTS_SMP
|
|
bool
|
|
|
|
config SYS_SUPPORTS_NUMA
|
|
bool
|
|
|
|
config SYS_SUPPORTS_PCI
|
|
bool
|
|
|
|
config SYS_SUPPORTS_CMT
|
|
bool
|
|
|
|
config SYS_SUPPORTS_MTU2
|
|
bool
|
|
|
|
config SYS_SUPPORTS_TMU
|
|
bool
|
|
|
|
config STACKTRACE_SUPPORT
|
|
def_bool y
|
|
|
|
config LOCKDEP_SUPPORT
|
|
def_bool y
|
|
|
|
config HAVE_LATENCYTOP_SUPPORT
|
|
def_bool y
|
|
depends on !SMP
|
|
|
|
config ARCH_HAS_ILOG2_U32
|
|
def_bool n
|
|
|
|
config ARCH_HAS_ILOG2_U64
|
|
def_bool n
|
|
|
|
config ARCH_NO_VIRT_TO_BUS
|
|
def_bool y
|
|
|
|
config ARCH_HAS_DEFAULT_IDLE
|
|
def_bool y
|
|
|
|
config ARCH_HAS_CPU_IDLE_WAIT
|
|
def_bool y
|
|
|
|
config IO_TRAPPED
|
|
bool
|
|
|
|
config DMA_COHERENT
|
|
bool
|
|
|
|
config DMA_NONCOHERENT
|
|
def_bool !DMA_COHERENT
|
|
|
|
source "init/Kconfig"
|
|
|
|
source "kernel/Kconfig.freezer"
|
|
|
|
menu "System type"
|
|
|
|
#
|
|
# Processor families
|
|
#
|
|
config CPU_SH2
|
|
bool
|
|
|
|
config CPU_SH2A
|
|
bool
|
|
select CPU_SH2
|
|
|
|
config CPU_SH3
|
|
bool
|
|
select CPU_HAS_INTEVT
|
|
select CPU_HAS_SR_RB
|
|
select SYS_SUPPORTS_TMU
|
|
|
|
config CPU_SH4
|
|
bool
|
|
select CPU_HAS_INTEVT
|
|
select CPU_HAS_SR_RB
|
|
select CPU_HAS_FPU if !CPU_SH4AL_DSP
|
|
select SYS_SUPPORTS_TMU
|
|
select SYS_SUPPORTS_HUGETLBFS if MMU
|
|
|
|
config CPU_SH4A
|
|
bool
|
|
select CPU_SH4
|
|
|
|
config CPU_SH4AL_DSP
|
|
bool
|
|
select CPU_SH4A
|
|
select CPU_HAS_DSP
|
|
|
|
config CPU_SH5
|
|
bool
|
|
select CPU_HAS_FPU
|
|
select SYS_SUPPORTS_TMU
|
|
select SYS_SUPPORTS_HUGETLBFS if MMU
|
|
|
|
config CPU_SHX2
|
|
bool
|
|
|
|
config CPU_SHX3
|
|
bool
|
|
select DMA_COHERENT
|
|
|
|
config ARCH_SHMOBILE
|
|
bool
|
|
select ARCH_SUSPEND_POSSIBLE
|
|
select PM
|
|
select PM_RUNTIME
|
|
|
|
if SUPERH32
|
|
|
|
choice
|
|
prompt "Processor sub-type selection"
|
|
|
|
#
|
|
# Processor subtypes
|
|
#
|
|
|
|
# SH-2 Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7619
|
|
bool "Support SH7619 processor"
|
|
select CPU_SH2
|
|
select SYS_SUPPORTS_CMT
|
|
|
|
# SH-2A Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7201
|
|
bool "Support SH7201 processor"
|
|
select CPU_SH2A
|
|
select CPU_HAS_FPU
|
|
select SYS_SUPPORTS_MTU2
|
|
|
|
config CPU_SUBTYPE_SH7203
|
|
bool "Support SH7203 processor"
|
|
select CPU_SH2A
|
|
select CPU_HAS_FPU
|
|
select SYS_SUPPORTS_CMT
|
|
select SYS_SUPPORTS_MTU2
|
|
|
|
config CPU_SUBTYPE_SH7206
|
|
bool "Support SH7206 processor"
|
|
select CPU_SH2A
|
|
select SYS_SUPPORTS_CMT
|
|
select SYS_SUPPORTS_MTU2
|
|
|
|
config CPU_SUBTYPE_SH7263
|
|
bool "Support SH7263 processor"
|
|
select CPU_SH2A
|
|
select CPU_HAS_FPU
|
|
select SYS_SUPPORTS_CMT
|
|
select SYS_SUPPORTS_MTU2
|
|
|
|
config CPU_SUBTYPE_MXG
|
|
bool "Support MX-G processor"
|
|
select CPU_SH2A
|
|
select SYS_SUPPORTS_MTU2
|
|
help
|
|
Select MX-G if running on an R8A03022BG part.
|
|
|
|
# SH-3 Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7705
|
|
bool "Support SH7705 processor"
|
|
select CPU_SH3
|
|
|
|
config CPU_SUBTYPE_SH7706
|
|
bool "Support SH7706 processor"
|
|
select CPU_SH3
|
|
help
|
|
Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7707
|
|
bool "Support SH7707 processor"
|
|
select CPU_SH3
|
|
help
|
|
Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7708
|
|
bool "Support SH7708 processor"
|
|
select CPU_SH3
|
|
help
|
|
Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
|
|
if you have a 100 Mhz SH-3 HD6417708R CPU.
|
|
|
|
config CPU_SUBTYPE_SH7709
|
|
bool "Support SH7709 processor"
|
|
select CPU_SH3
|
|
help
|
|
Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7710
|
|
bool "Support SH7710 processor"
|
|
select CPU_SH3
|
|
select CPU_HAS_DSP
|
|
help
|
|
Select SH7710 if you have a SH3-DSP SH7710 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7712
|
|
bool "Support SH7712 processor"
|
|
select CPU_SH3
|
|
select CPU_HAS_DSP
|
|
help
|
|
Select SH7712 if you have a SH3-DSP SH7712 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7720
|
|
bool "Support SH7720 processor"
|
|
select CPU_SH3
|
|
select CPU_HAS_DSP
|
|
select SYS_SUPPORTS_CMT
|
|
help
|
|
Select SH7720 if you have a SH3-DSP SH7720 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7721
|
|
bool "Support SH7721 processor"
|
|
select CPU_SH3
|
|
select CPU_HAS_DSP
|
|
select SYS_SUPPORTS_CMT
|
|
help
|
|
Select SH7721 if you have a SH3-DSP SH7721 CPU.
|
|
|
|
# SH-4 Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7750
|
|
bool "Support SH7750 processor"
|
|
select CPU_SH4
|
|
help
|
|
Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7091
|
|
bool "Support SH7091 processor"
|
|
select CPU_SH4
|
|
help
|
|
Select SH7091 if you have an SH-4 based Sega device (such as
|
|
the Dreamcast, Naomi, and Naomi 2).
|
|
|
|
config CPU_SUBTYPE_SH7750R
|
|
bool "Support SH7750R processor"
|
|
select CPU_SH4
|
|
|
|
config CPU_SUBTYPE_SH7750S
|
|
bool "Support SH7750S processor"
|
|
select CPU_SH4
|
|
|
|
config CPU_SUBTYPE_SH7751
|
|
bool "Support SH7751 processor"
|
|
select CPU_SH4
|
|
help
|
|
Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
|
|
or if you have a HD6417751R CPU.
|
|
|
|
config CPU_SUBTYPE_SH7751R
|
|
bool "Support SH7751R processor"
|
|
select CPU_SH4
|
|
|
|
config CPU_SUBTYPE_SH7760
|
|
bool "Support SH7760 processor"
|
|
select CPU_SH4
|
|
|
|
config CPU_SUBTYPE_SH4_202
|
|
bool "Support SH4-202 processor"
|
|
select CPU_SH4
|
|
|
|
# SH-4A Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7723
|
|
bool "Support SH7723 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX2
|
|
select ARCH_SHMOBILE
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_CMT
|
|
help
|
|
Select SH7723 if you have an SH-MobileR2 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7724
|
|
bool "Support SH7724 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX2
|
|
select ARCH_SHMOBILE
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_CMT
|
|
help
|
|
Select SH7724 if you have an SH-MobileR2R CPU.
|
|
|
|
config CPU_SUBTYPE_SH7757
|
|
bool "Support SH7757 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX2
|
|
help
|
|
Select SH7757 if you have a SH4A SH7757 CPU.
|
|
|
|
config CPU_SUBTYPE_SH7763
|
|
bool "Support SH7763 processor"
|
|
select CPU_SH4A
|
|
help
|
|
Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
|
|
|
|
config CPU_SUBTYPE_SH7770
|
|
bool "Support SH7770 processor"
|
|
select CPU_SH4A
|
|
|
|
config CPU_SUBTYPE_SH7780
|
|
bool "Support SH7780 processor"
|
|
select CPU_SH4A
|
|
|
|
config CPU_SUBTYPE_SH7785
|
|
bool "Support SH7785 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX2
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_NUMA
|
|
|
|
config CPU_SUBTYPE_SH7786
|
|
bool "Support SH7786 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX3
|
|
select CPU_HAS_PTEAEX
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_NUMA
|
|
select SYS_SUPPORTS_SMP
|
|
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
|
|
|
|
config CPU_SUBTYPE_SHX3
|
|
bool "Support SH-X3 processor"
|
|
select CPU_SH4A
|
|
select CPU_SHX3
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_NUMA
|
|
select SYS_SUPPORTS_SMP
|
|
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
|
|
|
|
# SH4AL-DSP Processor Support
|
|
|
|
config CPU_SUBTYPE_SH7343
|
|
bool "Support SH7343 processor"
|
|
select CPU_SH4AL_DSP
|
|
select ARCH_SHMOBILE
|
|
select SYS_SUPPORTS_CMT
|
|
|
|
config CPU_SUBTYPE_SH7722
|
|
bool "Support SH7722 processor"
|
|
select CPU_SH4AL_DSP
|
|
select CPU_SHX2
|
|
select ARCH_SHMOBILE
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_NUMA
|
|
select SYS_SUPPORTS_CMT
|
|
|
|
config CPU_SUBTYPE_SH7366
|
|
bool "Support SH7366 processor"
|
|
select CPU_SH4AL_DSP
|
|
select CPU_SHX2
|
|
select ARCH_SHMOBILE
|
|
select ARCH_SPARSEMEM_ENABLE
|
|
select SYS_SUPPORTS_NUMA
|
|
select SYS_SUPPORTS_CMT
|
|
|
|
endchoice
|
|
|
|
endif
|
|
|
|
if SUPERH64
|
|
|
|
choice
|
|
prompt "Processor sub-type selection"
|
|
|
|
# SH-5 Processor Support
|
|
|
|
config CPU_SUBTYPE_SH5_101
|
|
bool "Support SH5-101 processor"
|
|
select CPU_SH5
|
|
|
|
config CPU_SUBTYPE_SH5_103
|
|
bool "Support SH5-103 processor"
|
|
select CPU_SH5
|
|
|
|
endchoice
|
|
|
|
endif
|
|
|
|
source "arch/sh/mm/Kconfig"
|
|
|
|
source "arch/sh/Kconfig.cpu"
|
|
|
|
source "arch/sh/boards/Kconfig"
|
|
|
|
menu "Timer and clock configuration"
|
|
|
|
config SH_TIMER_TMU
|
|
bool "TMU timer driver"
|
|
depends on SYS_SUPPORTS_TMU
|
|
default y
|
|
help
|
|
This enables the build of the TMU timer driver.
|
|
|
|
config SH_TIMER_CMT
|
|
bool "CMT timer driver"
|
|
depends on SYS_SUPPORTS_CMT
|
|
default y
|
|
help
|
|
This enables build of the CMT timer driver.
|
|
|
|
config SH_TIMER_MTU2
|
|
bool "MTU2 timer driver"
|
|
depends on SYS_SUPPORTS_MTU2
|
|
default y
|
|
help
|
|
This enables build of the MTU2 timer driver.
|
|
|
|
config SH_PCLK_FREQ
|
|
int "Peripheral clock frequency (in Hz)"
|
|
depends on SH_CLK_CPG_LEGACY
|
|
default "31250000" if CPU_SUBTYPE_SH7619
|
|
default "33333333" if CPU_SUBTYPE_SH7770 || \
|
|
CPU_SUBTYPE_SH7760 || \
|
|
CPU_SUBTYPE_SH7705 || \
|
|
CPU_SUBTYPE_SH7203 || \
|
|
CPU_SUBTYPE_SH7206 || \
|
|
CPU_SUBTYPE_SH7263 || \
|
|
CPU_SUBTYPE_MXG || \
|
|
CPU_SUBTYPE_SH7786
|
|
default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
|
|
default "66000000" if CPU_SUBTYPE_SH4_202
|
|
default "50000000"
|
|
help
|
|
This option is used to specify the peripheral clock frequency.
|
|
This is necessary for determining the reference clock value on
|
|
platforms lacking an RTC.
|
|
|
|
config SH_CLK_CPG
|
|
def_bool y
|
|
|
|
config SH_CLK_CPG_LEGACY
|
|
depends on SH_CLK_CPG
|
|
def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE
|
|
|
|
config SH_CLK_MD
|
|
int "CPU Mode Pin Setting"
|
|
depends on CPU_SH2
|
|
default 6 if CPU_SUBTYPE_SH7206
|
|
default 5 if CPU_SUBTYPE_SH7619
|
|
default 0
|
|
help
|
|
MD2 - MD0 pin setting.
|
|
|
|
source "kernel/time/Kconfig"
|
|
|
|
endmenu
|
|
|
|
menu "CPU Frequency scaling"
|
|
|
|
source "drivers/cpufreq/Kconfig"
|
|
|
|
config SH_CPU_FREQ
|
|
tristate "SuperH CPU Frequency driver"
|
|
depends on CPU_FREQ
|
|
select CPU_FREQ_TABLE
|
|
help
|
|
This adds the cpufreq driver for SuperH. Any CPU that supports
|
|
clock rate rounding through the clock framework can use this
|
|
driver. While it will make the kernel slightly larger, this is
|
|
harmless for CPUs that don't support rate rounding. The driver
|
|
will also generate a notice in the boot log before disabling
|
|
itself if the CPU in question is not capable of rate rounding.
|
|
|
|
For details, take a look at <file:Documentation/cpu-freq>.
|
|
|
|
If unsure, say N.
|
|
|
|
endmenu
|
|
|
|
source "arch/sh/drivers/Kconfig"
|
|
|
|
endmenu
|
|
|
|
menu "Kernel features"
|
|
|
|
source kernel/Kconfig.hz
|
|
|
|
config KEXEC
|
|
bool "kexec system call (EXPERIMENTAL)"
|
|
depends on SUPERH32 && EXPERIMENTAL && MMU
|
|
help
|
|
kexec is a system call that implements the ability to shutdown your
|
|
current kernel, and to start another kernel. It is like a reboot
|
|
but it is independent of the system firmware. And like a reboot
|
|
you can start any kernel with it, not just Linux.
|
|
|
|
The name comes from the similarity to the exec system call.
|
|
|
|
It is an ongoing process to be certain the hardware in a machine
|
|
is properly shutdown, so do not be surprised if this code does not
|
|
initially work for you. It may help to enable device hotplugging
|
|
support. As of this writing the exact hardware interface is
|
|
strongly in flux, so no good recommendation can be made.
|
|
|
|
config CRASH_DUMP
|
|
bool "kernel crash dumps (EXPERIMENTAL)"
|
|
depends on SUPERH32 && EXPERIMENTAL
|
|
help
|
|
Generate crash dump after being started by kexec.
|
|
This should be normally only set in special crash dump kernels
|
|
which are loaded in the main kernel with kexec-tools into
|
|
a specially reserved region and then later executed after
|
|
a crash by kdump/kexec. The crash dump kernel must be compiled
|
|
to a memory address not used by the main kernel using
|
|
MEMORY_START.
|
|
|
|
For more details see Documentation/kdump/kdump.txt
|
|
|
|
config KEXEC_JUMP
|
|
bool "kexec jump (EXPERIMENTAL)"
|
|
depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
|
|
help
|
|
Jump between original kernel and kexeced kernel and invoke
|
|
code via KEXEC
|
|
|
|
config SECCOMP
|
|
bool "Enable seccomp to safely compute untrusted bytecode"
|
|
depends on PROC_FS
|
|
help
|
|
This kernel feature is useful for number crunching applications
|
|
that may need to compute untrusted bytecode during their
|
|
execution. By using pipes or other transports made available to
|
|
the process as file descriptors supporting the read/write
|
|
syscalls, it's possible to isolate those applications in
|
|
their own address space using seccomp. Once seccomp is
|
|
enabled via prctl, it cannot be disabled and the task is only
|
|
allowed to execute a few safe syscalls defined by each seccomp
|
|
mode.
|
|
|
|
If unsure, say N.
|
|
|
|
config SMP
|
|
bool "Symmetric multi-processing support"
|
|
depends on SYS_SUPPORTS_SMP
|
|
select USE_GENERIC_SMP_HELPERS
|
|
---help---
|
|
This enables support for systems with more than one CPU. If you have
|
|
a system with only one CPU, like most personal computers, say N. If
|
|
you have a system with more than one CPU, say Y.
|
|
|
|
If you say N here, the kernel will run on single and multiprocessor
|
|
machines, but will use only one CPU of a multiprocessor machine. If
|
|
you say Y here, the kernel will run on many, but not all,
|
|
singleprocessor machines. On a singleprocessor machine, the kernel
|
|
will run faster if you say N here.
|
|
|
|
People using multiprocessor machines who say Y here should also say
|
|
Y to "Enhanced Real Time Clock Support", below.
|
|
|
|
See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
|
|
available at <http://www.tldp.org/docs.html#howto>.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
config NR_CPUS
|
|
int "Maximum number of CPUs (2-32)"
|
|
range 2 32
|
|
depends on SMP
|
|
default "4" if CPU_SUBTYPE_SHX3
|
|
default "2"
|
|
help
|
|
This allows you to specify the maximum number of CPUs which this
|
|
kernel will support. The maximum supported value is 32 and the
|
|
minimum value which makes sense is 2.
|
|
|
|
This is purely to save memory - each supported CPU adds
|
|
approximately eight kilobytes to the kernel image.
|
|
|
|
source "kernel/Kconfig.preempt"
|
|
|
|
config GUSA
|
|
def_bool y
|
|
depends on !SMP && SUPERH32
|
|
help
|
|
This enables support for gUSA (general UserSpace Atomicity).
|
|
This is the default implementation for both UP and non-ll/sc
|
|
CPUs, and is used by the libc, amongst others.
|
|
|
|
For additional information, design information can be found
|
|
in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
|
|
|
|
This should only be disabled for special cases where alternate
|
|
atomicity implementations exist.
|
|
|
|
config GUSA_RB
|
|
bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
|
|
depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
|
|
help
|
|
Enabling this option will allow the kernel to implement some
|
|
atomic operations using a software implementation of load-locked/
|
|
store-conditional (LLSC). On machines which do not have hardware
|
|
LLSC, this should be more efficient than the other alternative of
|
|
disabling interrupts around the atomic sequence.
|
|
|
|
config SPARSE_IRQ
|
|
bool "Support sparse irq numbering"
|
|
depends on EXPERIMENTAL
|
|
help
|
|
This enables support for sparse irqs. This is useful in general
|
|
as most CPUs have a fairly sparse array of IRQ vectors, which
|
|
the irq_desc then maps directly on to. Systems with a high
|
|
number of off-chip IRQs will want to treat this as
|
|
experimental until they have been independently verified.
|
|
|
|
If you don't know what to do here, say N.
|
|
|
|
endmenu
|
|
|
|
menu "Boot options"
|
|
|
|
config ZERO_PAGE_OFFSET
|
|
hex
|
|
default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
|
|
SH_7751_SOLUTION_ENGINE
|
|
default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
|
|
default "0x00002000" if PAGE_SIZE_8KB
|
|
default "0x00001000"
|
|
help
|
|
This sets the default offset of zero page.
|
|
|
|
config BOOT_LINK_OFFSET
|
|
hex
|
|
default "0x00210000" if SH_SHMIN
|
|
default "0x00400000" if SH_CAYMAN
|
|
default "0x00810000" if SH_7780_SOLUTION_ENGINE
|
|
default "0x009e0000" if SH_TITAN
|
|
default "0x01800000" if SH_SDK7780
|
|
default "0x02000000" if SH_EDOSK7760
|
|
default "0x00800000"
|
|
help
|
|
This option allows you to set the link address offset of the zImage.
|
|
This can be useful if you are on a board which has a small amount of
|
|
memory.
|
|
|
|
config ENTRY_OFFSET
|
|
hex
|
|
default "0x00001000" if PAGE_SIZE_4KB
|
|
default "0x00002000" if PAGE_SIZE_8KB
|
|
default "0x00004000" if PAGE_SIZE_16KB
|
|
default "0x00010000" if PAGE_SIZE_64KB
|
|
default "0x00000000"
|
|
|
|
choice
|
|
prompt "Kernel command line"
|
|
optional
|
|
default CMDLINE_OVERWRITE
|
|
help
|
|
Setting this option allows the kernel command line arguments
|
|
to be set.
|
|
|
|
config CMDLINE_OVERWRITE
|
|
bool "Overwrite bootloader kernel arguments"
|
|
help
|
|
Given string will overwrite any arguments passed in by
|
|
a bootloader.
|
|
|
|
config CMDLINE_EXTEND
|
|
bool "Extend bootloader kernel arguments"
|
|
help
|
|
Given string will be concatenated with arguments passed in
|
|
by a bootloader.
|
|
|
|
endchoice
|
|
|
|
config CMDLINE
|
|
string "Kernel command line arguments string"
|
|
depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
|
|
default "console=ttySC1,115200"
|
|
|
|
endmenu
|
|
|
|
menu "Bus options"
|
|
|
|
config SUPERHYWAY
|
|
tristate "SuperHyway Bus support"
|
|
depends on CPU_SUBTYPE_SH4_202
|
|
|
|
config MAPLE
|
|
bool "Maple Bus support"
|
|
depends on SH_DREAMCAST
|
|
help
|
|
The Maple Bus is SEGA's serial communication bus for peripherals
|
|
on the Dreamcast. Without this bus support you won't be able to
|
|
get your Dreamcast keyboard etc to work, so most users
|
|
probably want to say 'Y' here, unless you are only using the
|
|
Dreamcast with a serial line terminal or a remote network
|
|
connection.
|
|
|
|
config PCI
|
|
bool "PCI support"
|
|
depends on SYS_SUPPORTS_PCI
|
|
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. If you have PCI, say Y, otherwise N.
|
|
|
|
source "drivers/pci/pcie/Kconfig"
|
|
|
|
source "drivers/pci/Kconfig"
|
|
|
|
source "drivers/pcmcia/Kconfig"
|
|
|
|
source "drivers/pci/hotplug/Kconfig"
|
|
|
|
endmenu
|
|
|
|
menu "Executable file formats"
|
|
|
|
source "fs/Kconfig.binfmt"
|
|
|
|
endmenu
|
|
|
|
menu "Power management options (EXPERIMENTAL)"
|
|
depends on EXPERIMENTAL
|
|
|
|
source "kernel/power/Kconfig"
|
|
|
|
source "drivers/cpuidle/Kconfig"
|
|
|
|
endmenu
|
|
|
|
source "net/Kconfig"
|
|
|
|
source "drivers/Kconfig"
|
|
|
|
source "fs/Kconfig"
|
|
|
|
source "arch/sh/Kconfig.debug"
|
|
|
|
source "security/Kconfig"
|
|
|
|
source "crypto/Kconfig"
|
|
|
|
source "lib/Kconfig"
|