mirror of
https://git.busybox.net/buildroot.git
synced 2024-12-14 15:53:29 +08:00
4a3f597a0e
Now that BR2_ARCH_HAS_ATOMICS is no longer used anywhere, we can remove it from arch/Config.in*, as well as from the documentation. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
78 lines
1.7 KiB
Plaintext
78 lines
1.7 KiB
Plaintext
choice
|
|
prompt "Target CPU"
|
|
depends on BR2_arc
|
|
default BR2_arc770d
|
|
help
|
|
Specific CPU to use
|
|
|
|
config BR2_arc750d
|
|
bool "ARC 750D"
|
|
|
|
config BR2_arc770d
|
|
bool "ARC 770D"
|
|
|
|
config BR2_archs38
|
|
bool "ARC HS38"
|
|
|
|
endchoice
|
|
|
|
# Choice of atomic instructions presence
|
|
config BR2_ARC_ATOMIC_EXT
|
|
bool "Atomic extension (LLOCK/SCOND instructions)"
|
|
default y if BR2_arc770d || BR2_archs38
|
|
|
|
config BR2_ARCH
|
|
default "arc" if BR2_arcle
|
|
default "arceb" if BR2_arceb
|
|
|
|
config BR2_arc
|
|
bool
|
|
default y if BR2_arcle || BR2_arceb
|
|
|
|
config BR2_ENDIAN
|
|
default "LITTLE" if BR2_arcle
|
|
default "BIG" if BR2_arceb
|
|
|
|
config BR2_GCC_TARGET_CPU
|
|
default "arc700" if BR2_arc750d
|
|
default "arc700" if BR2_arc770d
|
|
default "archs" if BR2_archs38
|
|
|
|
choice
|
|
prompt "MMU Page Size"
|
|
default BR2_ARC_PAGE_SIZE_8K
|
|
help
|
|
MMU starting from version 3 (found in ARC 770) and now
|
|
version 4 (found in ARC HS38) allows the selection of the
|
|
page size during ASIC design creation.
|
|
|
|
The following options are available for MMU v3 and v4: 4kB,
|
|
8kB and 16 kB.
|
|
|
|
The default is 8 kB (that really matches the only page size
|
|
in MMU v2). It is important to build a toolchain with page
|
|
size matching the hardware configuration. Otherwise
|
|
user-space applications will fail at runtime.
|
|
|
|
config BR2_ARC_PAGE_SIZE_4K
|
|
bool "4KB"
|
|
depends on BR2_arc770d || BR2_archs38
|
|
|
|
config BR2_ARC_PAGE_SIZE_8K
|
|
bool "8KB"
|
|
help
|
|
This is the one and only option available for MMUv2 and
|
|
default value for MMU v3 and v4.
|
|
|
|
config BR2_ARC_PAGE_SIZE_16K
|
|
bool "16KB"
|
|
depends on BR2_arc770d || BR2_archs38
|
|
|
|
endchoice
|
|
|
|
config BR2_ARC_PAGE_SIZE
|
|
string
|
|
default "4K" if BR2_ARC_PAGE_SIZE_4K
|
|
default "8K" if BR2_ARC_PAGE_SIZE_8K
|
|
default "16K" if BR2_ARC_PAGE_SIZE_16K
|