Kconfig 17.8 KB
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#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/kconfig-language.txt.
#

mainmenu "Linux/SuperH Kernel Configuration"

config SUPERH
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	def_bool y
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	select EMBEDDED
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	select HAVE_CLK
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	select HAVE_IDE
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	select HAVE_OPROFILE
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	select HAVE_GENERIC_DMA_COHERENT
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	select HAVE_IOREMAP_PROT
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	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/>.

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config SUPERH32
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	def_bool !SUPERH64
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	select HAVE_KPROBES
	select HAVE_KRETPROBES
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	select HAVE_ARCH_TRACEHOOK if !SH_FPU
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config SUPERH64
	def_bool y if CPU_SH5
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	select GENERIC_CALIBRATE_DELAY
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config ARCH_DEFCONFIG
	string
	default "arch/sh/configs/shx3_defconfig" if SUPERH32
	default "arch/sh/configs/cayman_defconfig" if SUPERH64

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config RWSEM_GENERIC_SPINLOCK
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	def_bool y
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config RWSEM_XCHGADD_ALGORITHM
	bool

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config GENERIC_BUG
	def_bool y
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	depends on BUG && SUPERH32
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config GENERIC_FIND_NEXT_BIT
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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_HARDIRQS
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	def_bool y
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config GENERIC_HARDIRQS_NO__DO_IRQ
	def_bool y

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config GENERIC_IRQ_PROBE
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	def_bool y
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config GENERIC_CALIBRATE_DELAY
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	bool
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config GENERIC_IOMAP
	bool

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config GENERIC_TIME
	def_bool n

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config GENERIC_CLOCKEVENTS
	def_bool n

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config GENERIC_CLOCKEVENTS_BROADCAST
	bool

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config GENERIC_LOCKBREAK
	def_bool y
	depends on SMP && PREEMPT

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config SYS_SUPPORTS_PM
	bool

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config SYS_SUPPORTS_APM_EMULATION
	bool
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	select SYS_SUPPORTS_PM

config SYS_SUPPORTS_SMP
	bool

config SYS_SUPPORTS_NUMA
	bool

config SYS_SUPPORTS_PCI
	bool
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config STACKTRACE_SUPPORT
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	def_bool y
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config LOCKDEP_SUPPORT
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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 ARCH_NO_VIRT_TO_BUS
	def_bool y

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config IO_TRAPPED
	bool

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source "init/Kconfig"

menu "System type"

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#
# 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

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB
	select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
	select CPU_HAS_FPU if !CPU_SH4AL_DSP

config CPU_SH4A
	bool
	select CPU_SH4

config CPU_SH4AL_DSP
	bool
	select CPU_SH4A
	select CPU_HAS_DSP

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config CPU_SH5
	bool
	select CPU_HAS_FPU

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config CPU_SHX2
	bool

config CPU_SHX3
	bool

choice
	prompt "Processor sub-type selection"

#
# Processor subtypes
#

# SH-2 Processor Support

config CPU_SUBTYPE_SH7619
	bool "Support SH7619 processor"
	select CPU_SH2

# SH-2A Processor Support

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config CPU_SUBTYPE_SH7203
	bool "Support SH7203 processor"
	select CPU_SH2A
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	select CPU_HAS_FPU
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config CPU_SUBTYPE_SH7206
	bool "Support SH7206 processor"
	select CPU_SH2A

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config CPU_SUBTYPE_SH7263
	bool "Support SH7263 processor"
	select CPU_SH2A
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	select CPU_HAS_FPU
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config CPU_SUBTYPE_MXG
	bool "Support MX-G processor"
	select CPU_SH2A
	help
	  Select MX-G if running on an R8A03022BG part.

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# 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
	help
	  Select SH7720 if you have a SH3-DSP SH7720 CPU.

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config CPU_SUBTYPE_SH7721
	bool "Support SH7721 processor"
	select CPU_SH3
	select CPU_HAS_DSP
	help
	  Select SH7721 if you have a SH3-DSP SH7721 CPU.

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# 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

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config CPU_SUBTYPE_SH7723
	bool "Support SH7723 processor"
	select CPU_SH4A
	select CPU_SHX2
	select ARCH_SPARSEMEM_ENABLE
	help
	  Select SH7723 if you have an SH-MobileR2 CPU.

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config CPU_SUBTYPE_SH7763
	bool "Support SH7763 processor"
	select CPU_SH4A
	help
	  Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.

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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_SHX3
	bool "Support SH-X3 processor"
	select CPU_SH4A
	select CPU_SHX3
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
	select SYS_SUPPORTS_SMP
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	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
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# SH4AL-DSP Processor Support

config CPU_SUBTYPE_SH7343
	bool "Support SH7343 processor"
	select CPU_SH4AL_DSP

config CPU_SUBTYPE_SH7722
	bool "Support SH7722 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
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config CPU_SUBTYPE_SH7366
	bool "Support SH7366 processor"
	select CPU_SH4AL_DSP
	select CPU_SHX2
	select ARCH_SPARSEMEM_ENABLE
	select SYS_SUPPORTS_NUMA
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# 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"
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	select CPU_SH5
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endchoice

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source "arch/sh/mm/Kconfig"
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source "arch/sh/Kconfig.cpu"
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source "arch/sh/boards/Kconfig"
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menu "Timer and clock configuration"

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config SH_TMU
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	def_bool y
	prompt "TMU timer support"
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	depends on CPU_SH3 || CPU_SH4
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	select GENERIC_TIME
	select GENERIC_CLOCKEVENTS
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	help
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	  This enables the use of the TMU as the system timer.
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config SH_CMT
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	def_bool y
	prompt "CMT timer support"
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	depends on CPU_SH2 && !CPU_SUBTYPE_MXG
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	help
	  This enables the use of the CMT as the system timer.

config SH_MTU2
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	def_bool n
	prompt "MTU2 timer support"
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	depends on CPU_SH2A
	help
	  This enables the use of the MTU2 as the system timer.

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config SH_TIMER_IRQ
	int
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	default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
			CPU_SUBTYPE_SH7763
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	default "86" if CPU_SUBTYPE_SH7619
	default "140" if CPU_SUBTYPE_SH7206
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	default "142" if CPU_SUBTYPE_SH7203
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	default "238" if CPU_SUBTYPE_MXG
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	default "16"

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config SH_PCLK_FREQ
	int "Peripheral clock frequency (in Hz)"
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	default "27000000" if CPU_SUBTYPE_SH7343
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	default "31250000" if CPU_SUBTYPE_SH7619
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	default "32000000" if CPU_SUBTYPE_SH7722
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	default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
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			      CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
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			      CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
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			      CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
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	default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
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	default "66000000" if CPU_SUBTYPE_SH4_202
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	default "50000000"
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	help
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	  This option is used to specify the peripheral clock frequency.
	  This is necessary for determining the reference clock value on
	  platforms lacking an RTC.
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config SH_CLK_MD
	int "CPU Mode Pin Setting"
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	depends on CPU_SH2
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	default 6 if CPU_SUBTYPE_SH7206
	default 5 if CPU_SUBTYPE_SH7619
	default 0
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	help
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	  MD2 - MD0 pin setting.
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source "kernel/time/Kconfig"

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endmenu

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menu "CPU Frequency scaling"

source "drivers/cpufreq/Kconfig"
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config SH_CPU_FREQ
	tristate "SuperH CPU Frequency driver"
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	depends on CPU_FREQ
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	select CPU_FREQ_TABLE
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	help
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	  This adds the cpufreq driver for SuperH. At present, only
	  the SH-4 is supported.
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	  For details, take a look at <file:Documentation/cpu-freq>.
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	  If unsure, say N.

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endmenu

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source "arch/sh/drivers/Kconfig"

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endmenu
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config ISA_DMA_API
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	bool
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menu "Kernel features"

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source kernel/Kconfig.hz

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config KEXEC
	bool "kexec system call (EXPERIMENTAL)"
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	depends on SUPERH32 && EXPERIMENTAL
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	help
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	  kexec is a system call that implements the ability to shutdown your
	  current kernel, and to start another kernel.  It is like a reboot
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	  but it is independent of the system firmware.  And like a reboot
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	  you can start any kernel with it, not just Linux.

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	  The name comes from the similarity to the exec system call.
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	  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.

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config CRASH_DUMP
	bool "kernel crash dumps (EXPERIMENTAL)"
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	depends on SUPERH32 && EXPERIMENTAL
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	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

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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.

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config SMP
	bool "Symmetric multi-processing support"
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	depends on SYS_SUPPORTS_SMP
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	select USE_GENERIC_SMP_HELPERS
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	---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.

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	  See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
	  available at <http://www.tldp.org/docs.html#howto>.
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	  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
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	default "4" if CPU_SHX3
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	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.

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source "kernel/Kconfig.preempt"

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config GUSA
	def_bool y
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	depends on !SMP && SUPERH32
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	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.

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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 implemention 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 insterrupts around the atomic sequence.

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endmenu
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menu "Boot options"
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config ZERO_PAGE_OFFSET
	hex "Zero page offset"
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	default "0x00004000" if SH_SH03
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	default "0x00010000" if PAGE_SIZE_64KB
	default "0x00002000" if PAGE_SIZE_8KB
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	default "0x00001000"
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	help
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	  This sets the default offset of zero page.
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config BOOT_LINK_OFFSET
	hex "Link address offset for booting"
	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.
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config UBC_WAKEUP
	bool "Wakeup UBC on startup"
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	depends on CPU_SH4 && !CPU_SH4A
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	help
	  Selecting this option will wakeup the User Break Controller (UBC) on
	  startup. Although the UBC is left in an awake state when the processor
	  comes up, some boot loaders misbehave by putting the UBC to sleep in a
	  power saving state, which causes issues with things like ptrace().
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	  If unsure, say N.
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config CMDLINE_BOOL
	bool "Default bootloader kernel arguments"
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config CMDLINE
	string "Initial kernel command string"
	depends on CMDLINE_BOOL
	default "console=ttySC1,115200"
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endmenu

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menu "Bus options"
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# Even on SuperH devices which don't have an ISA bus,
# this variable helps the PCMCIA modules handle
# IRQ requesting properly -- Greg Banks.
#
# Though we're generally not interested in it when
# we're not using PCMCIA, so we make it dependent on
# PCMCIA outright. -- PFM.
config ISA
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	def_bool y
	depends on PCMCIA && HD6446X_SERIES
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	help
	  Find out whether you have ISA slots on your motherboard.  ISA 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 PCI, EISA, MicroChannel
	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
	  newer boards don't support it.  If you have ISA, say Y, otherwise N.

config EISA
	bool
	---help---
	  The Extended Industry Standard Architecture (EISA) bus was
	  developed as an open alternative to the IBM MicroChannel bus.

	  The EISA bus provided some of the features of the IBM MicroChannel
	  bus while maintaining backward compatibility with cards made for
	  the older ISA bus.  The EISA bus saw limited use between 1988 and
	  1995 when it was made obsolete by the PCI bus.

	  Say Y here if you are building a kernel for an EISA-based machine.

	  Otherwise, say N.

config MCA
	bool
	help
	  MicroChannel Architecture is found in some IBM PS/2 machines and
	  laptops.  It is a bus system similar to PCI or ISA. See
	  <file:Documentation/mca.txt> (and especially the web page given
	  there) before attempting to build an MCA bus kernel.

config SBUS
	bool

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config SUPERHYWAY
	tristate "SuperHyway Bus support"
	depends on CPU_SUBTYPE_SH4_202
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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.

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config CF_ENABLER
	bool "Compact Flash Enabler support"
	depends on SOLUTION_ENGINE || SH_SH03
	---help---
	  Compact Flash is a small, removable mass storage device introduced
	  in 1994 originally as a PCMCIA device.  If you say `Y' here, you
	  compile in support for Compact Flash devices directly connected to
	  a SuperH processor.  A Compact Flash FAQ is available at
	  <http://www.compactflash.org/faqs/faq.htm>.

	  If your board has "Directly Connected" CompactFlash at area 5 or 6,
	  you may want to enable this option.  Then, you can use CF as
	  primary IDE drive (only tested for SanDisk).

	  If in doubt, select 'N'.

choice
	prompt "Compact Flash Connection Area"
	depends on CF_ENABLER
	default CF_AREA6

config CF_AREA5
	bool "Area5"
	help
	  If your board has "Directly Connected" CompactFlash, You should
	  select the area where your CF is connected to.

	  - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
	  - "Area6" if it is connected to Area 6 (0x18000000)

	  "Area6" will work for most boards.

config CF_AREA6
	bool "Area6"

endchoice

config CF_BASE_ADDR
	hex
	depends on CF_ENABLER
	default "0xb8000000" if CF_AREA6
	default "0xb4000000" if CF_AREA5

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source "arch/sh/drivers/pci/Kconfig"

source "drivers/pci/Kconfig"

source "drivers/pcmcia/Kconfig"

source "drivers/pci/hotplug/Kconfig"

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

endmenu

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menu "Power management options (EXPERIMENTAL)"
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depends on EXPERIMENTAL && SYS_SUPPORTS_PM
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config ARCH_SUSPEND_POSSIBLE
	def_bool y
	depends on !SMP

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source kernel/power/Kconfig

endmenu

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source "net/Kconfig"

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source "drivers/Kconfig"

source "fs/Kconfig"

source "arch/sh/Kconfig.debug"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"