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menu "Processor selection"
#
# Processor families
#
config CPU_SH2
bool
select SH_WRITETHROUGH
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
config CPU_SH4A
bool
select CPU_SH4
config CPU_SUBTYPE_ST40
bool
select CPU_SH4
select CPU_HAS_INTC2_IRQ
#
# Processor subtypes
#
comment "SH-2 Processor Support"
config CPU_SUBTYPE_SH7604
bool "Support SH7604 processor"
select CPU_SH2
comment "SH-3 Processor Support"
config CPU_SUBTYPE_SH7300
bool "Support SH7300 processor"
select CPU_SH3
config CPU_SUBTYPE_SH7705
bool "Support SH7705 processor"
select CPU_SH3
select CPU_HAS_PINT_IRQ
config CPU_SUBTYPE_SH7707
bool "Support SH7707 processor"
select CPU_SH3
select CPU_HAS_PINT_IRQ
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
select CPU_HAS_PINT_IRQ
help
Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
comment "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
select CPU_SUBTYPE_SH7750
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
select CPU_SUBTYPE_SH7750
config CPU_SUBTYPE_SH7750S
bool "Support SH7750S processor"
select CPU_SH4
select CPU_SUBTYPE_SH7750
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
select CPU_SUBTYPE_SH7751
config CPU_SUBTYPE_SH7760
bool "Support SH7760 processor"
select CPU_SH4
select CPU_HAS_INTC2_IRQ
config CPU_SUBTYPE_SH4_202
bool "Support SH4-202 processor"
select CPU_SH4
comment "ST40 Processor Support"
config CPU_SUBTYPE_ST40STB1
bool "Support ST40STB1/ST40RA processors"
select CPU_SUBTYPE_ST40
help
Select ST40STB1 if you have a ST40RA CPU.
This was previously called the ST40STB1, hence the option name.
config CPU_SUBTYPE_ST40GX1
bool "Support ST40GX1 processor"
select CPU_SUBTYPE_ST40
help
Select ST40GX1 if you have a ST40GX1 CPU.
comment "SH-4A Processor Support"
config CPU_SUBTYPE_SH73180
bool "Support SH73180 processor"
select CPU_SH4A
config CPU_SUBTYPE_SH7770
bool "Support SH7770 processor"
select CPU_SH4A
config CPU_SUBTYPE_SH7780
bool "Support SH7780 processor"
select CPU_SH4A
select CPU_HAS_INTC2_IRQ
endmenu
menu "Memory management options"
config MMU
bool "Support for memory management hardware"
depends on !CPU_SH2
default y
help
Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
boot on these systems, this option must not be set.
On other systems (such as the SH-3 and 4) where an MMU exists,
turning this off will boot the kernel on these machines with the
MMU implicitly switched off.
config 32BIT
bool "Support 32-bit physical addressing through PMB"
depends on CPU_SH4A
default y
help
If you say Y here, physical addressing will be extended to
32-bits through the SH-4A PMB. If this is not set, legacy
29-bit physical addressing will be used.
choice
prompt "HugeTLB page size"
depends on HUGETLB_PAGE && CPU_SH4 && MMU
default HUGETLB_PAGE_SIZE_64K
config HUGETLB_PAGE_SIZE_64K
bool "64K"
config HUGETLB_PAGE_SIZE_1MB
bool "1MB"
endchoice
source "mm/Kconfig"
endmenu
menu "Cache configuration"
config SH7705_CACHE_32KB
bool "Enable 32KB cache size for SH7705"
depends on CPU_SUBTYPE_SH7705
default y
config SH_DIRECT_MAPPED
bool "Use direct-mapped caching"
default n
help
Selecting this option will configure the caches to be direct-mapped,
even if the cache supports a 2 or 4-way mode. This is useful primarily
for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
SH4-202, SH4-501, etc.)
Turn this option off for platforms that do not have a direct-mapped
cache, and you have no need to run the caches in such a configuration.
config SH_WRITETHROUGH
bool "Use write-through caching"
default y if CPU_SH2
help
Selecting this option will configure the caches in write-through
mode, as opposed to the default write-back configuration.
Since there's sill some aliasing issues on SH-4, this option will
unfortunately still require the majority of flushing functions to
be implemented to deal with aliasing.
If unsure, say N.
config SH_OCRAM
bool "Operand Cache RAM (OCRAM) support"
help
Selecting this option will automatically tear down the number of
sets in the dcache by half, which in turn exposes a memory range.
The addresses for the OC RAM base will vary according to the
processor version. Consult vendor documentation for specifics.
If unsure, say N.
endmenu
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