2005-04-16 15:20:36 -07:00
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#
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# For a description of the syntax of this configuration file,
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# see Documentation/kbuild/kconfig-language.txt.
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#
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mainmenu "Linux/SuperH Kernel Configuration"
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config SUPERH
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bool
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default y
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2006-09-27 02:18:31 -07:00
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select EMBEDDED
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2005-04-16 15:20:36 -07:00
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help
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The SuperH is a RISC processor targeted for use in embedded systems
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and consumer electronics; it was also used in the Sega Dreamcast
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gaming console. The SuperH port has a home page at
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<http://www.linux-sh.org/>.
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config RWSEM_GENERIC_SPINLOCK
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bool
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default y
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config RWSEM_XCHGADD_ALGORITHM
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bool
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[PATCH] bitops: sh: use generic bitops
- remove __{,test_and_}{set,clear,change}_bit() and test_bit()
- remove find_{next,first}{,_zero}_bit()
- remove generic_ffs()
- remove generic_hweight{32,16,8}()
- remove sched_find_first_bit()
- remove ext2_{set,clear,test,find_first_zero,find_next_zero}_bit()
- remove ext2_{set,clear}_bit_atomic()
- remove minix_{test,set,test_and_clear,test,find_first_zero}_bit()
- remove generic_fls()
- remove generic_fls64()
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 02:39:35 -07:00
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config GENERIC_FIND_NEXT_BIT
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bool
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default y
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config GENERIC_HWEIGHT
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bool
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default y
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2005-04-16 15:20:36 -07:00
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config GENERIC_HARDIRQS
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bool
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default y
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config GENERIC_IRQ_PROBE
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bool
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default y
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config GENERIC_CALIBRATE_DELAY
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bool
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default y
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2006-01-16 23:14:19 -07:00
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config GENERIC_IOMAP
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bool
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2006-10-03 21:21:45 -07:00
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config GENERIC_TIME
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def_bool n
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2007-01-24 05:56:20 -07:00
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config SYS_SUPPORTS_APM_EMULATION
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bool
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2005-09-05 17:48:42 -07:00
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config ARCH_MAY_HAVE_PC_FDC
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bool
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2006-12-04 02:17:28 -07:00
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config STACKTRACE_SUPPORT
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bool
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default y
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config LOCKDEP_SUPPORT
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bool
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default y
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2006-12-08 03:37:49 -07:00
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config ARCH_HAS_ILOG2_U32
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bool
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default n
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config ARCH_HAS_ILOG2_U64
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bool
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default n
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2005-04-16 15:20:36 -07:00
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source "init/Kconfig"
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menu "System type"
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2006-09-27 02:09:34 -07:00
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config SOLUTION_ENGINE
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bool
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2005-04-16 15:20:36 -07:00
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choice
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prompt "SuperH system type"
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default SH_UNKNOWN
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config SH_SOLUTION_ENGINE
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bool "SolutionEngine"
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2006-09-27 02:09:34 -07:00
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select SOLUTION_ENGINE
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2005-04-16 15:20:36 -07:00
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help
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Select SolutionEngine if configuring for a Hitachi SH7709
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or SH7750 evaluation board.
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config SH_7751_SOLUTION_ENGINE
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bool "SolutionEngine7751"
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2006-09-27 02:09:34 -07:00
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select SOLUTION_ENGINE
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7751
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2005-04-16 15:20:36 -07:00
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help
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Select 7751 SolutionEngine if configuring for a Hitachi SH7751
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evaluation board.
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config SH_7300_SOLUTION_ENGINE
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bool "SolutionEngine7300"
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2006-09-27 02:09:34 -07:00
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select SOLUTION_ENGINE
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7300
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2005-04-16 15:20:36 -07:00
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help
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2006-09-27 02:09:34 -07:00
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Select 7300 SolutionEngine if configuring for a Hitachi
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SH7300(SH-Mobile V) evaluation board.
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config SH_7343_SOLUTION_ENGINE
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bool "SolutionEngine7343"
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH7343
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help
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Select 7343 SolutionEngine if configuring for a Hitachi
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SH7343 (SH-Mobile 3AS) evaluation board.
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2005-04-16 15:20:36 -07:00
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config SH_73180_SOLUTION_ENGINE
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bool "SolutionEngine73180"
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2006-09-27 02:09:34 -07:00
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select SOLUTION_ENGINE
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select CPU_SUBTYPE_SH73180
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help
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Select 73180 SolutionEngine if configuring for a Hitachi
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SH73180(SH-Mobile 3) evaluation board.
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2005-04-16 15:20:36 -07:00
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config SH_7751_SYSTEMH
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bool "SystemH7751R"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7751R
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2005-04-16 15:20:36 -07:00
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help
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Select SystemH if you are configuring for a Renesas SystemH
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7751R evaluation board.
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2006-01-16 23:14:19 -07:00
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config SH_HP6XX
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bool "HP6XX"
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2007-01-24 05:56:20 -07:00
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select SYS_SUPPORTS_APM_EMULATION
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2005-04-16 15:20:36 -07:00
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help
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2006-01-16 23:14:19 -07:00
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Select HP6XX if configuring for a HP jornada HP6xx.
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2005-04-16 15:20:36 -07:00
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More information (hardware only) at
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<http://www.hp.com/jornada/>.
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config SH_EC3104
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bool "EC3104"
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help
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Select EC3104 if configuring for a system with an Eclipse
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International EC3104 chip, e.g. the Harris AD2000.
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config SH_SATURN
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bool "Saturn"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7604
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2005-04-16 15:20:36 -07:00
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help
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Select Saturn if configuring for a SEGA Saturn.
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config SH_DREAMCAST
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bool "Dreamcast"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7091
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2005-04-16 15:20:36 -07:00
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help
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Select Dreamcast if configuring for a SEGA Dreamcast.
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More information at
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<http://www.m17n.org/linux-sh/dreamcast/>. There is a
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Dreamcast project is at <http://linuxdc.sourceforge.net/>.
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config SH_BIGSUR
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bool "BigSur"
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config SH_MPC1211
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2006-01-16 23:14:19 -07:00
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bool "Interface MPC1211"
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help
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CTP/PCI-SH02 is a CPU module computer that is produced
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by Interface Corporation.
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More information at <http://www.interface.co.jp>
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2005-04-16 15:20:36 -07:00
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config SH_SH03
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2006-01-16 23:14:19 -07:00
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bool "Interface CTP/PCI-SH03"
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2005-04-16 15:20:36 -07:00
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help
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2006-01-16 23:14:19 -07:00
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CTP/PCI-SH03 is a CPU module computer that is produced
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2005-04-16 15:20:36 -07:00
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by Interface Corporation.
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More information at <http://www.interface.co.jp>
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config SH_SECUREEDGE5410
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bool "SecureEdge5410"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7751R
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2005-04-16 15:20:36 -07:00
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help
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Select SecureEdge5410 if configuring for a SnapGear SH board.
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This includes both the OEM SecureEdge products as well as the
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SME product line.
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config SH_HS7751RVOIP
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bool "HS7751RVOIP"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7751R
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2005-04-16 15:20:36 -07:00
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help
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Select HS7751RVOIP if configuring for a Renesas Technology
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Sales VoIP board.
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2006-09-27 02:08:33 -07:00
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config SH_7710VOIPGW
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bool "SH7710-VOIP-GW"
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select CPU_SUBTYPE_SH7710
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help
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Select this option to build a kernel for the SH7710 based
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VOIP GW.
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2005-04-16 15:20:36 -07:00
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config SH_RTS7751R2D
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bool "RTS7751R2D"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7751R
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2005-04-16 15:20:36 -07:00
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help
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Select RTS7751R2D if configuring for a Renesas Technology
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Sales SH-Graphics board.
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2006-01-16 23:14:19 -07:00
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config SH_R7780RP
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bool "R7780RP-1"
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select CPU_SUBTYPE_SH7780
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help
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Select R7780RP-1 if configuring for a Renesas Solutions
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HIGHLANDER board.
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2005-04-16 15:20:36 -07:00
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config SH_EDOSK7705
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bool "EDOSK7705"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH7705
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2005-04-16 15:20:36 -07:00
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config SH_SH4202_MICRODEV
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bool "SH4-202 MicroDev"
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2006-01-16 23:14:19 -07:00
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select CPU_SUBTYPE_SH4_202
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2005-04-16 15:20:36 -07:00
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help
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Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
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with an SH4-202 CPU.
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2006-01-16 23:14:19 -07:00
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config SH_LANDISK
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bool "LANDISK"
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select CPU_SUBTYPE_SH7751R
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help
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I-O DATA DEVICE, INC. "LANDISK Series" support.
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config SH_TITAN
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bool "TITAN"
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select CPU_SUBTYPE_SH7751R
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help
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Select Titan if you are configuring for a Nimble Microsystems
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NetEngine NP51R.
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2006-09-27 01:41:31 -07:00
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config SH_SHMIN
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bool "SHMIN"
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select CPU_SUBTYPE_SH7706
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help
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2006-11-29 21:22:59 -07:00
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Select SHMIN if configuring for the SHMIN board.
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2006-09-27 01:41:31 -07:00
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2006-11-04 23:40:13 -07:00
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config SH_7206_SOLUTION_ENGINE
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bool "SolutionEngine7206"
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select CPU_SUBTYPE_SH7206
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help
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Select 7206 SolutionEngine if configuring for a Hitachi SH7206
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evaluation board.
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config SH_7619_SOLUTION_ENGINE
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bool "SolutionEngine7619"
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select CPU_SUBTYPE_SH7619
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help
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Select 7619 SolutionEngine if configuring for a Hitachi SH7619
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evaluation board.
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2005-04-16 15:20:36 -07:00
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config SH_UNKNOWN
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bool "BareCPU"
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help
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"Bare CPU" aka "unknown" means an SH-based system which is not one
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of the specific ones mentioned above, which means you need to enter
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all sorts of stuff like CONFIG_MEMORY_START because the config
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system doesn't already know what it is. You get a machine vector
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without any platform-specific code in it, so things like the RTC may
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not work.
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This option is for the early stages of porting to a new machine.
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endchoice
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2006-01-16 23:14:19 -07:00
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source "arch/sh/mm/Kconfig"
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2005-04-16 15:20:36 -07:00
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config CF_ENABLER
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bool "Compact Flash Enabler support"
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2006-09-27 02:00:19 -07:00
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depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
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2005-04-16 15:20:36 -07:00
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---help---
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Compact Flash is a small, removable mass storage device introduced
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in 1994 originally as a PCMCIA device. If you say `Y' here, you
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compile in support for Compact Flash devices directly connected to
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a SuperH processor. A Compact Flash FAQ is available at
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<http://www.compactflash.org/faqs/faq.htm>.
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If your board has "Directly Connected" CompactFlash at area 5 or 6,
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you may want to enable this option. Then, you can use CF as
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primary IDE drive (only tested for SanDisk).
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If in doubt, select 'N'.
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choice
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prompt "Compact Flash Connection Area"
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depends on CF_ENABLER
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default CF_AREA6
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config CF_AREA5
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bool "Area5"
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help
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If your board has "Directly Connected" CompactFlash, You should
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select the area where your CF is connected to.
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- "Area5" if CompactFlash is connected to Area 5 (0x14000000)
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- "Area6" if it is connected to Area 6 (0x18000000)
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2006-09-27 02:00:19 -07:00
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"Area6" will work for most boards.
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2005-04-16 15:20:36 -07:00
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config CF_AREA6
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bool "Area6"
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endchoice
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config CF_BASE_ADDR
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hex
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depends on CF_ENABLER
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default "0xb8000000" if CF_AREA6
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default "0xb4000000" if CF_AREA5
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2006-01-16 23:14:19 -07:00
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menu "Processor features"
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2006-11-20 19:12:19 -07:00
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choice
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prompt "Endianess selection"
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default CPU_LITTLE_ENDIAN
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2006-01-16 23:14:19 -07:00
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help
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Some SuperH machines can be configured for either little or big
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2006-11-20 19:12:19 -07:00
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endian byte order. These modes require different kernels.
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config CPU_LITTLE_ENDIAN
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bool "Little Endian"
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config CPU_BIG_ENDIAN
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bool "Big Endian"
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endchoice
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2006-01-16 23:14:19 -07:00
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2005-04-16 15:20:36 -07:00
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config SH_FPU
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bool "FPU support"
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depends on !CPU_SH3
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default y
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help
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Selecting this option will enable support for SH processors that
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have FPU units (ie, SH77xx).
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|
|
This option must be set in order to enable the FPU.
|
|
|
|
|
2006-09-27 01:15:32 -07:00
|
|
|
config SH_FPU_EMU
|
|
|
|
bool "FPU emulation support"
|
|
|
|
depends on !SH_FPU && EXPERIMENTAL
|
|
|
|
default n
|
|
|
|
help
|
|
|
|
Selecting this option will enable support for software FPU emulation.
|
|
|
|
Most SH-3 users will want to say Y here, whereas most SH-4 users will
|
|
|
|
want to say N.
|
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
config SH_DSP
|
|
|
|
bool "DSP support"
|
2006-09-27 01:38:11 -07:00
|
|
|
default y if SH4AL_DSP || !CPU_SH4
|
|
|
|
default n
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
|
|
|
Selecting this option will enable support for SH processors that
|
2006-09-27 01:38:11 -07:00
|
|
|
have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
This option must be set in order to enable the DSP.
|
|
|
|
|
|
|
|
config SH_ADC
|
|
|
|
bool "ADC support"
|
|
|
|
depends on CPU_SH3
|
|
|
|
default y
|
|
|
|
help
|
|
|
|
Selecting this option will allow the Linux kernel to use SH3 on-chip
|
|
|
|
ADC module.
|
|
|
|
|
|
|
|
If unsure, say N.
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config SH_STORE_QUEUES
|
|
|
|
bool "Support for Store Queues"
|
|
|
|
depends on CPU_SH4
|
|
|
|
help
|
|
|
|
Selecting this option will enable an in-kernel API for manipulating
|
|
|
|
the store queues integrated in the SH-4 processors.
|
|
|
|
|
|
|
|
config CPU_HAS_INTEVT
|
2005-04-16 15:20:36 -07:00
|
|
|
bool
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config CPU_HAS_PINT_IRQ
|
|
|
|
bool
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-09-27 02:01:16 -07:00
|
|
|
config CPU_HAS_MASKREG_IRQ
|
|
|
|
bool
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config CPU_HAS_INTC2_IRQ
|
|
|
|
bool
|
2005-06-23 00:07:43 -07:00
|
|
|
|
2006-12-05 20:05:02 -07:00
|
|
|
config CPU_HAS_IPR_IRQ
|
|
|
|
bool
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config CPU_HAS_SR_RB
|
|
|
|
bool "CPU has SR.RB"
|
|
|
|
depends on CPU_SH3 || CPU_SH4
|
|
|
|
default y
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
This will enable the use of SR.RB register bank usage. Processors
|
|
|
|
that are lacking this bit must have another method in place for
|
|
|
|
accomplishing what is taken care of by the banked registers.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
See <file:Documentation/sh/register-banks.txt> for further
|
|
|
|
information on SR.RB and register banking in the kernel in general.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-11-23 19:42:24 -07:00
|
|
|
config CPU_HAS_PTEA
|
|
|
|
bool
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
endmenu
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
menu "Timer support"
|
2006-10-03 21:21:45 -07:00
|
|
|
depends on !GENERIC_TIME
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config SH_TMU
|
|
|
|
bool "TMU timer support"
|
2006-11-04 23:40:13 -07:00
|
|
|
depends on CPU_SH3 || CPU_SH4
|
2005-04-16 15:20:36 -07:00
|
|
|
default y
|
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
This enables the use of the TMU as the system timer.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-11-04 23:40:13 -07:00
|
|
|
config SH_CMT
|
|
|
|
bool "CMT timer support"
|
|
|
|
depends on CPU_SH2
|
|
|
|
default y
|
|
|
|
help
|
|
|
|
This enables the use of the CMT as the system timer.
|
|
|
|
|
|
|
|
config SH_MTU2
|
|
|
|
bool "MTU2 timer support"
|
|
|
|
depends on CPU_SH2A
|
|
|
|
default n
|
|
|
|
help
|
|
|
|
This enables the use of the MTU2 as the system timer.
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
endmenu
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-09-26 21:56:28 -07:00
|
|
|
source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-09-26 22:02:09 -07:00
|
|
|
source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
|
2006-01-16 23:14:19 -07:00
|
|
|
|
2006-09-26 23:59:17 -07:00
|
|
|
source "arch/sh/boards/renesas/r7780rp/Kconfig"
|
|
|
|
|
2006-11-19 19:18:30 -07:00
|
|
|
config SH_TIMER_IRQ
|
|
|
|
int
|
|
|
|
default "28" if CPU_SUBTYPE_SH7780
|
|
|
|
default "86" if CPU_SUBTYPE_SH7619
|
|
|
|
default "140" if CPU_SUBTYPE_SH7206
|
|
|
|
default "16"
|
|
|
|
|
2006-11-30 21:23:47 -07:00
|
|
|
config NO_IDLE_HZ
|
|
|
|
bool "Dynamic tick timer"
|
|
|
|
help
|
|
|
|
Select this option if you want to disable continuous timer ticks
|
|
|
|
and have them programmed to occur as required. This option saves
|
|
|
|
power as the system can remain in idle state for longer.
|
|
|
|
|
|
|
|
By default dynamic tick is disabled during the boot, and can be
|
|
|
|
manually enabled with:
|
|
|
|
|
|
|
|
echo 1 > /sys/devices/system/timer/timer0/dyn_tick
|
|
|
|
|
|
|
|
Alternatively, if you want dynamic tick automatically enabled
|
|
|
|
during boot, pass "dyntick=enable" via the kernel command string.
|
|
|
|
|
|
|
|
Please note that dynamic tick may affect the accuracy of
|
|
|
|
timekeeping on some platforms depending on the implementation.
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config SH_PCLK_FREQ
|
|
|
|
int "Peripheral clock frequency (in Hz)"
|
2006-11-04 23:40:13 -07:00
|
|
|
default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
|
|
|
|
default "31250000" if CPU_SUBTYPE_SH7619
|
|
|
|
default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
|
|
|
|
CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
|
|
|
|
CPU_SUBTYPE_SH7206
|
2006-01-16 23:14:19 -07:00
|
|
|
default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780
|
|
|
|
default "60000000" if CPU_SUBTYPE_SH7751
|
|
|
|
default "66000000" if CPU_SUBTYPE_SH4_202
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
This option is used to specify the peripheral clock frequency.
|
|
|
|
This is necessary for determining the reference clock value on
|
|
|
|
platforms lacking an RTC.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-11-04 23:40:13 -07:00
|
|
|
config SH_CLK_MD
|
|
|
|
int "CPU Mode Pin Setting"
|
|
|
|
depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
|
|
|
|
help
|
2006-12-07 02:07:27 -07:00
|
|
|
MD2 - MD0 pin setting.
|
2006-11-04 23:40:13 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
menu "CPU Frequency scaling"
|
|
|
|
|
|
|
|
source "drivers/cpufreq/Kconfig"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config SH_CPU_FREQ
|
|
|
|
tristate "SuperH CPU Frequency driver"
|
|
|
|
depends on CPU_FREQ
|
|
|
|
select CPU_FREQ_TABLE
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
This adds the cpufreq driver for SuperH. At present, only
|
|
|
|
the SH-4 is supported.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
For details, take a look at <file:Documentation/cpu-freq>.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
If unsure, say N.
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
endmenu
|
|
|
|
|
|
|
|
source "arch/sh/drivers/dma/Kconfig"
|
|
|
|
|
|
|
|
source "arch/sh/cchips/Kconfig"
|
|
|
|
|
|
|
|
config HEARTBEAT
|
|
|
|
bool "Heartbeat LED"
|
2006-09-27 02:00:19 -07:00
|
|
|
depends on SH_MPC1211 || SH_SH03 || \
|
2006-09-27 02:09:34 -07:00
|
|
|
SH_BIGSUR || SOLUTION_ENGINE || \
|
2006-01-16 23:14:19 -07:00
|
|
|
SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
Use the power-on LED on your machine as a load meter. The exact
|
|
|
|
behavior is platform-dependent, but normally the flash frequency is
|
|
|
|
a hyperbolic function of the 5-minute load average.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-11-23 19:22:57 -07:00
|
|
|
source "arch/sh/drivers/Kconfig"
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
endmenu
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config ISA_DMA_API
|
|
|
|
bool
|
2006-02-17 14:52:42 -07:00
|
|
|
depends on SH_MPC1211
|
2006-01-16 23:14:19 -07:00
|
|
|
default y
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
menu "Kernel features"
|
|
|
|
|
2006-09-27 02:08:33 -07:00
|
|
|
source kernel/Kconfig.hz
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config KEXEC
|
|
|
|
bool "kexec system call (EXPERIMENTAL)"
|
|
|
|
depends on EXPERIMENTAL
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
kexec is a system call that implements the ability to shutdown your
|
|
|
|
current kernel, and to start another kernel. It is like a reboot
|
2006-06-28 22:32:47 -07:00
|
|
|
but it is independent of the system firmware. And like a reboot
|
2006-01-16 23:14:19 -07:00
|
|
|
you can start any kernel with it, not just Linux.
|
|
|
|
|
2006-06-28 22:32:47 -07:00
|
|
|
The name comes from the similarity to the exec system call.
|
2006-01-16 23:14:19 -07:00
|
|
|
|
|
|
|
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.
|
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
config SMP
|
|
|
|
bool "Symmetric multi-processing support"
|
|
|
|
---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 the <file:Documentation/smp.txt>,
|
|
|
|
<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 "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.
|
|
|
|
|
2006-09-27 02:08:33 -07:00
|
|
|
source "kernel/Kconfig.preempt"
|
|
|
|
|
2006-04-10 22:53:53 -07:00
|
|
|
config NODES_SHIFT
|
|
|
|
int
|
|
|
|
default "1"
|
|
|
|
depends on NEED_MULTIPLE_NODES
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
endmenu
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
menu "Boot options"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config ZERO_PAGE_OFFSET
|
|
|
|
hex "Zero page offset"
|
|
|
|
default "0x00004000" if SH_MPC1211 || SH_SH03
|
|
|
|
default "0x00001000"
|
2005-04-16 15:20:36 -07:00
|
|
|
help
|
2006-01-16 23:14:19 -07:00
|
|
|
This sets the default offset of zero page.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
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.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config UBC_WAKEUP
|
|
|
|
bool "Wakeup UBC on startup"
|
|
|
|
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().
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
If unsure, say N.
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config CMDLINE_BOOL
|
|
|
|
bool "Default bootloader kernel arguments"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
config CMDLINE
|
|
|
|
string "Initial kernel command string"
|
|
|
|
depends on CMDLINE_BOOL
|
|
|
|
default "console=ttySC1,115200"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
endmenu
|
|
|
|
|
2006-01-16 23:14:19 -07:00
|
|
|
menu "Bus options"
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
# 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
|
|
|
|
bool
|
2006-01-16 23:14:19 -07:00
|
|
|
default y if PCMCIA
|
2005-04-16 15:20:36 -07:00
|
|
|
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---
|
|
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The Extended Industry Standard Architecture (EISA) bus was
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developed as an open alternative to the IBM MicroChannel bus.
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The EISA bus provided some of the features of the IBM MicroChannel
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bus while maintaining backward compatibility with cards made for
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the older ISA bus. The EISA bus saw limited use between 1988 and
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1995 when it was made obsolete by the PCI bus.
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Say Y here if you are building a kernel for an EISA-based machine.
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Otherwise, say N.
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config MCA
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bool
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help
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MicroChannel Architecture is found in some IBM PS/2 machines and
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laptops. It is a bus system similar to PCI or ISA. See
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<file:Documentation/mca.txt> (and especially the web page given
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there) before attempting to build an MCA bus kernel.
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config SBUS
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bool
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2006-01-16 23:14:19 -07:00
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config SUPERHYWAY
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tristate "SuperHyway Bus support"
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depends on CPU_SUBTYPE_SH4_202
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2005-04-16 15:20:36 -07:00
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source "arch/sh/drivers/pci/Kconfig"
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source "drivers/pci/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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source "fs/Kconfig.binfmt"
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endmenu
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2006-09-27 00:20:22 -07:00
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menu "Power management options (EXPERIMENTAL)"
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depends on EXPERIMENTAL
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source kernel/power/Kconfig
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endmenu
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2005-07-11 21:03:49 -07:00
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source "net/Kconfig"
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2005-04-16 15:20:36 -07:00
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source "drivers/Kconfig"
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source "fs/Kconfig"
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source "arch/sh/oprofile/Kconfig"
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source "arch/sh/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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