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arch/Config.in.arm: Add BR2_ARM_CPU_HAS_NEON similar to how mmx/sse is handled on x86

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NEON support is optional on A5/A9, so let the user choose if SoC has it /
wants to use it.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Peter Korsgaard 2012-12-13 23:20:48 +01:00
parent e043dd6c99
commit f9da98c85d
1 changed files with 21 additions and 0 deletions
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21
arch/Config.in.arm
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@ -1,3 +1,11 @@
# arm cpu features
config BR2_ARM_CPU_HAS_NEON
bool
# for some cores, NEON support is optional
config BR2_ARM_CPU_MAYBE_HAS_NEON
bool
choice
prompt "Target Architecture Variant"
depends on BR2_arm || BR2_armeb
@ -31,12 +39,16 @@ config BR2_arm1176jzf_s
bool "arm1176jzf-s"
config BR2_cortex_a5
bool "cortex-A5"
select BR2_ARM_CPU_MAYBE_HAS_NEON
config BR2_cortex_a8
bool "cortex-A8"
select BR2_ARM_CPU_HAS_NEON
config BR2_cortex_a9
bool "cortex-A9"
select BR2_ARM_CPU_MAYBE_HAS_NEON
config BR2_cortex_a15
bool "cortex-A15"
select BR2_ARM_CPU_HAS_NEON
config BR2_sa110
bool "sa110"
config BR2_sa1100
@ -64,6 +76,15 @@ config BR2_ARM_OABI
depends on !BR2_GCC_VERSION_4_7_X
endchoice
config BR2_ARM_ENABLE_NEON
bool "Enable NEON SIMD extension support"
depends on BR2_ARM_CPU_MAYBE_HAS_NEON
select BR2_ARM_CPU_HAS_NEON
help
For some CPU cores, the NEON SIMD extension is optional.
Select this option if you are certain your particular
implementation has NEON support and you want to use it.
config BR2_ARCH
default "arm" if BR2_arm
default "armeb" if BR2_armeb