# SPDX-License-Identifier: GPL-2.0
|
config SUPERH
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def_bool y
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select ARCH_HAS_PTE_SPECIAL
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select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
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select ARCH_MIGHT_HAVE_PC_PARPORT
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select ARCH_NO_COHERENT_DMA_MMAP if !MMU
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select HAVE_PATA_PLATFORM
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select CLKDEV_LOOKUP
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select HAVE_IDE if HAS_IOPORT_MAP
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select HAVE_MEMBLOCK
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select HAVE_MEMBLOCK_NODE_MAP
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select NO_BOOTMEM
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select ARCH_DISCARD_MEMBLOCK
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select HAVE_OPROFILE
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select HAVE_GENERIC_DMA_COHERENT
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select HAVE_ARCH_TRACEHOOK
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select HAVE_PERF_EVENTS
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select HAVE_DEBUG_BUGVERBOSE
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select ARCH_HAVE_CUSTOM_GPIO_H
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select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
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select ARCH_HAS_GCOV_PROFILE_ALL
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select PERF_USE_VMALLOC
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select HAVE_DEBUG_KMEMLEAK
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select HAVE_KERNEL_GZIP
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select CPU_NO_EFFICIENT_FFS
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select HAVE_KERNEL_BZIP2
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select HAVE_KERNEL_LZMA
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select HAVE_KERNEL_XZ
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select HAVE_KERNEL_LZO
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select HAVE_UID16
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select ARCH_WANT_IPC_PARSE_VERSION
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select HAVE_SYSCALL_TRACEPOINTS
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select HAVE_REGS_AND_STACK_ACCESS_API
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select MAY_HAVE_SPARSE_IRQ
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select IRQ_FORCED_THREADING
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select RTC_LIB
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select GENERIC_ATOMIC64
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select GENERIC_IRQ_SHOW
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select GENERIC_SMP_IDLE_THREAD
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select GENERIC_IDLE_POLL_SETUP
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select GENERIC_CLOCKEVENTS
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select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
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select GENERIC_SCHED_CLOCK
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select GENERIC_STRNCPY_FROM_USER
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select GENERIC_STRNLEN_USER
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select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
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select MODULES_USE_ELF_RELA
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select OLD_SIGSUSPEND
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select OLD_SIGACTION
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select HAVE_ARCH_AUDITSYSCALL
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select HAVE_FUTEX_CMPXCHG if FUTEX
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select HAVE_NMI
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select NEED_SG_DMA_LENGTH
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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
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<http://www.linux-sh.org/>.
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config SUPERH32
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def_bool "$(ARCH)" = "sh"
|
select HAVE_KPROBES
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select HAVE_KRETPROBES
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select HAVE_IOREMAP_PROT if MMU && !X2TLB
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select HAVE_FUNCTION_TRACER
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select HAVE_FTRACE_MCOUNT_RECORD
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select HAVE_DYNAMIC_FTRACE
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select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
|
select ARCH_WANT_IPC_PARSE_VERSION
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select HAVE_FUNCTION_GRAPH_TRACER
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select HAVE_ARCH_KGDB
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select HAVE_HW_BREAKPOINT
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select HAVE_MIXED_BREAKPOINTS_REGS
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select PERF_EVENTS
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select ARCH_HIBERNATION_POSSIBLE if MMU
|
select SPARSE_IRQ
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select HAVE_STACKPROTECTOR
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|
config SUPERH64
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def_bool "$(ARCH)" = "sh64"
|
select HAVE_EXIT_THREAD
|
select KALLSYMS
|
|
config ARCH_DEFCONFIG
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string
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default "arch/sh/configs/shx3_defconfig" if SUPERH32
|
default "arch/sh/configs/cayman_defconfig" if SUPERH64
|
|
config RWSEM_GENERIC_SPINLOCK
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def_bool y
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|
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_HWEIGHT
|
def_bool y
|
|
config GENERIC_CALIBRATE_DELAY
|
bool
|
|
config GENERIC_LOCKBREAK
|
def_bool y
|
depends on SMP && PREEMPT
|
|
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 STACKTRACE_SUPPORT
|
def_bool y
|
|
config LOCKDEP_SUPPORT
|
def_bool y
|
|
config ARCH_HAS_ILOG2_U32
|
def_bool n
|
|
config ARCH_HAS_ILOG2_U64
|
def_bool n
|
|
config NO_IOPORT_MAP
|
def_bool !PCI
|
depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
|
!SH_HP6XX && !SH_SOLUTION_ENGINE
|
|
config IO_TRAPPED
|
bool
|
|
config SWAP_IO_SPACE
|
bool
|
|
config DMA_COHERENT
|
select DMA_DIRECT_OPS
|
bool
|
|
config DMA_NONCOHERENT
|
def_bool !DMA_COHERENT
|
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
|
select DMA_NONCOHERENT_OPS
|
|
config PGTABLE_LEVELS
|
default 3 if X2TLB
|
default 2
|
|
menu "System type"
|
|
#
|
# Processor families
|
#
|
config CPU_SH2
|
bool
|
select SH_INTC
|
|
config CPU_SH2A
|
bool
|
select CPU_SH2
|
select UNCACHED_MAPPING
|
|
config CPU_J2
|
bool
|
select CPU_SH2
|
select OF
|
select OF_EARLY_FLATTREE
|
|
config CPU_SH3
|
bool
|
select CPU_HAS_INTEVT
|
select CPU_HAS_SR_RB
|
select SH_INTC
|
select SYS_SUPPORTS_SH_TMU
|
|
config CPU_SH4
|
bool
|
select CPU_HAS_INTEVT
|
select CPU_HAS_SR_RB
|
select CPU_HAS_FPU if !CPU_SH4AL_DSP
|
select SH_INTC
|
select SYS_SUPPORTS_SH_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_SH_TMU
|
select SYS_SUPPORTS_HUGETLBFS if MMU
|
|
config CPU_SHX2
|
bool
|
|
config CPU_SHX3
|
bool
|
select DMA_COHERENT
|
select SYS_SUPPORTS_SMP
|
select SYS_SUPPORTS_NUMA
|
|
config ARCH_SHMOBILE
|
bool
|
select ARCH_SUSPEND_POSSIBLE
|
select PM
|
|
config CPU_HAS_PMU
|
depends on CPU_SH4 || CPU_SH4A
|
default y
|
bool
|
|
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_SH_CMT
|
|
config CPU_SUBTYPE_J2
|
bool "Support J2 processor"
|
select CPU_J2
|
select SYS_SUPPORTS_SMP
|
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
|
|
# SH-2A Processor Support
|
|
config CPU_SUBTYPE_SH7201
|
bool "Support SH7201 processor"
|
select CPU_SH2A
|
select CPU_HAS_FPU
|
select SYS_SUPPORTS_SH_MTU2
|
|
config CPU_SUBTYPE_SH7203
|
bool "Support SH7203 processor"
|
select CPU_SH2A
|
select CPU_HAS_FPU
|
select SYS_SUPPORTS_SH_CMT
|
select SYS_SUPPORTS_SH_MTU2
|
select PINCTRL
|
|
config CPU_SUBTYPE_SH7206
|
bool "Support SH7206 processor"
|
select CPU_SH2A
|
select SYS_SUPPORTS_SH_CMT
|
select SYS_SUPPORTS_SH_MTU2
|
|
config CPU_SUBTYPE_SH7263
|
bool "Support SH7263 processor"
|
select CPU_SH2A
|
select CPU_HAS_FPU
|
select SYS_SUPPORTS_SH_CMT
|
select SYS_SUPPORTS_SH_MTU2
|
|
config CPU_SUBTYPE_SH7264
|
bool "Support SH7264 processor"
|
select CPU_SH2A
|
select CPU_HAS_FPU
|
select SYS_SUPPORTS_SH_CMT
|
select SYS_SUPPORTS_SH_MTU2
|
select PINCTRL
|
|
config CPU_SUBTYPE_SH7269
|
bool "Support SH7269 processor"
|
select CPU_SH2A
|
select CPU_HAS_FPU
|
select SYS_SUPPORTS_SH_CMT
|
select SYS_SUPPORTS_SH_MTU2
|
select PINCTRL
|
|
config CPU_SUBTYPE_MXG
|
bool "Support MX-G processor"
|
select CPU_SH2A
|
select SYS_SUPPORTS_SH_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_SH_CMT
|
select USB_OHCI_SH if USB_OHCI_HCD
|
select PINCTRL
|
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_SH_CMT
|
select USB_OHCI_SH if USB_OHCI_HCD
|
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_SH_CMT
|
select PINCTRL
|
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_SH_CMT
|
select PINCTRL
|
help
|
Select SH7724 if you have an SH-MobileR2R CPU.
|
|
config CPU_SUBTYPE_SH7734
|
bool "Support SH7734 processor"
|
select CPU_SH4A
|
select CPU_SHX2
|
select PINCTRL
|
help
|
Select SH7734 if you have a SH4A SH7734 CPU.
|
|
config CPU_SUBTYPE_SH7757
|
bool "Support SH7757 processor"
|
select CPU_SH4A
|
select CPU_SHX2
|
select PINCTRL
|
help
|
Select SH7757 if you have a SH4A SH7757 CPU.
|
|
config CPU_SUBTYPE_SH7763
|
bool "Support SH7763 processor"
|
select CPU_SH4A
|
select USB_OHCI_SH if USB_OHCI_HCD
|
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
|
select PINCTRL
|
|
config CPU_SUBTYPE_SH7786
|
bool "Support SH7786 processor"
|
select CPU_SH4A
|
select CPU_SHX3
|
select CPU_HAS_PTEAEX
|
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
|
select USB_OHCI_SH if USB_OHCI_HCD
|
select USB_EHCI_SH if USB_EHCI_HCD
|
select PINCTRL
|
|
config CPU_SUBTYPE_SHX3
|
bool "Support SH-X3 processor"
|
select CPU_SH4A
|
select CPU_SHX3
|
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
|
select GPIOLIB
|
select PINCTRL
|
|
# SH4AL-DSP Processor Support
|
|
config CPU_SUBTYPE_SH7343
|
bool "Support SH7343 processor"
|
select CPU_SH4AL_DSP
|
select ARCH_SHMOBILE
|
select SYS_SUPPORTS_SH_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_SH_CMT
|
select PINCTRL
|
|
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_SH_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_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
|
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 && \
|
!CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
|
!CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
|
!CPU_SUBTYPE_SH7269
|
|
endmenu
|
|
menu "CPU Frequency scaling"
|
source "drivers/cpufreq/Kconfig"
|
endmenu
|
|
source "arch/sh/drivers/Kconfig"
|
|
endmenu
|
|
menu "Kernel features"
|
|
source kernel/Kconfig.hz
|
|
config KEXEC
|
bool "kexec system call (EXPERIMENTAL)"
|
depends on SUPERH32 && MMU
|
select KEXEC_CORE
|
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. 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 && BROKEN_ON_SMP
|
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
|
PHYSICAL_START.
|
|
For more details see Documentation/kdump/kdump.txt
|
|
config KEXEC_JUMP
|
bool "kexec jump (EXPERIMENTAL)"
|
depends on SUPERH32 && KEXEC && HIBERNATION
|
help
|
Jump between original kernel and kexeced kernel and invoke
|
code via KEXEC
|
|
config PHYSICAL_START
|
hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
|
default MEMORY_START
|
---help---
|
This gives the physical address where the kernel is loaded
|
and is ordinarily the same as MEMORY_START.
|
|
Different values are primarily used in the case of kexec on panic
|
where the fail safe kernel needs to run at a different address
|
than the panic-ed kernel.
|
|
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
|
---help---
|
This enables support for systems with more than one CPU. If you have
|
a system with only one CPU, say N. If you have a system with more
|
than one CPU, say Y.
|
|
If you say N here, the kernel will run on uni- 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,
|
uniprocessor machines. On a uniprocessor 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/lockup-watchdogs.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.
|
|
config HOTPLUG_CPU
|
bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
|
depends on SMP
|
help
|
Say Y here to experiment with turning CPUs off and on. CPUs
|
can be controlled through /sys/devices/system/cpu.
|
|
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 HW_PERF_EVENTS
|
bool "Enable hardware performance counter support for perf events"
|
depends on PERF_EVENTS && CPU_HAS_PMU
|
default y
|
help
|
Enable hardware performance counter support for perf events. If
|
disabled, perf events will use software events only.
|
|
source "drivers/sh/Kconfig"
|
|
endmenu
|
|
menu "Boot options"
|
|
config USE_BUILTIN_DTB
|
bool "Use builtin DTB"
|
default n
|
depends on SH_DEVICE_TREE
|
help
|
Link a device tree blob for particular hardware into the kernel,
|
suppressing use of the DTB pointer provided by the bootloader.
|
This option should only be used with legacy bootloaders that are
|
not capable of providing a DTB to the kernel, or for experimental
|
hardware without stable device tree bindings.
|
|
config BUILTIN_DTB_SOURCE
|
string "Source file for builtin DTB"
|
default ""
|
depends on USE_BUILTIN_DTB
|
help
|
Base name (without suffix, relative to arch/sh/boot/dts) for the
|
a DTS file that will be used to produce the DTB linked into the
|
kernel.
|
|
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"
|
|
config ROMIMAGE_MMCIF
|
bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
|
depends on CPU_SUBTYPE_SH7724
|
help
|
Say Y here to include experimental MMCIF loading code in
|
romImage. With this enabled it is possible to write the romImage
|
kernel image to an MMC card and boot the kernel straight from
|
the reset vector. At reset the processor Mask ROM will load the
|
first part of the romImage which in turn loads the rest the kernel
|
image to RAM using the MMCIF hardware block.
|
|
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
|
select PCI_DOMAINS
|
select GENERIC_PCI_IOMAP
|
select NO_GENERIC_PCI_IOPORT_MAP
|
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.
|
|
config PCI_DOMAINS
|
bool
|
|
source "drivers/pci/Kconfig"
|
|
source "drivers/pcmcia/Kconfig"
|
|
endmenu
|
|
menu "Power management options (EXPERIMENTAL)"
|
|
source "kernel/power/Kconfig"
|
|
source "drivers/cpuidle/Kconfig"
|
|
endmenu
|
