kumquat-buildroot/arch/Config.in.powerpc
Thomas Petazzoni 9b3e72b4fd arch: Refactor BR2_SOFT_FLOAT into per-architecture options
As we are going to introduced a more advanced support of floating
point options for the ARM architecture, we need to adjust how the
soft-float option is handled. We replace the current hidden option
BR2_PREFER_SOFT_FLOAT option and the visible BR2_SOFT_FLOAT option by:

 * A global hidden BR2_SOFT_FLOAT option, defined in arch/Config.in,
   that tells whether the architecture-specific code is using software
   emulated floating point. This hidden option can be used throughout
   Buildroot to determine whether soft float is used or not.

 * Per-architecture visible BR2_<arch>_SOFT_FLOAT options, for the
   architecture for which it makes sense, which allows users to select
   soft float emulation when needed.

This change will allow each architecture to have a different way of
presenting its floating point capabilities.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
2013-07-16 14:35:07 +02:00

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choice
prompt "Target Architecture Variant"
depends on BR2_powerpc
default BR2_generic_powerpc
help
Specific CPU variant to use
config BR2_generic_powerpc
bool "generic"
config BR2_powerpc_401
bool "401"
config BR2_powerpc_403
bool "403"
config BR2_powerpc_405
bool "405"
config BR2_powerpc_405fp
bool "405 with FPU"
config BR2_powerpc_440
bool "440"
config BR2_powerpc_440fp
bool "440 with FPU"
config BR2_powerpc_464
bool "464"
config BR2_powerpc_464fp
bool "464 with FPU"
config BR2_powerpc_476
bool "476"
config BR2_powerpc_476fp
bool "476 with FPU"
config BR2_powerpc_505
bool "505"
config BR2_powerpc_601
bool "601"
config BR2_powerpc_602
bool "602"
config BR2_powerpc_603
bool "603"
config BR2_powerpc_603e
bool "603e"
config BR2_powerpc_604
bool "604"
config BR2_powerpc_604e
bool "604e"
config BR2_powerpc_620
bool "620"
config BR2_powerpc_630
bool "630"
config BR2_powerpc_740
bool "740"
config BR2_powerpc_7400
bool "7400"
config BR2_powerpc_7450
bool "7450"
config BR2_powerpc_750
bool "750"
config BR2_powerpc_821
bool "821"
config BR2_powerpc_823
bool "823"
config BR2_powerpc_860
bool "860"
config BR2_powerpc_970
bool "970"
config BR2_powerpc_8540
bool "8540 / e500v1"
config BR2_powerpc_8548
bool "8548 / e500v2"
config BR2_powerpc_e300c2
bool "e300c2"
config BR2_powerpc_e300c3
bool "e300c3"
config BR2_powerpc_e500mc
bool "e500mc"
endchoice
choice
prompt "Target ABI"
depends on BR2_powerpc
default BR2_powerpc_SPE if BR2_powerpc_8540 || BR2_powerpc_8548
default BR2_powerpc_CLASSIC
help
Application Binary Interface to use
config BR2_powerpc_CLASSIC
bool "Classic"
depends on !(BR2_powerpc_8540 || BR2_powerpc_8548)
config BR2_powerpc_SPE
bool "SPE"
depends on BR2_powerpc_8540 || BR2_powerpc_8548
endchoice
config BR2_POWERPC_SOFT_FLOAT
bool "Use soft-float"
select BR2_SOFT_FLOAT
help
If your target CPU does not have a Floating Point Unit (FPU)
or a kernel FPU emulator, but you still wish to support
floating point functions, then everything will need to be
compiled with soft floating point support (-msoft-float).
config BR2_ARCH
default "powerpc" if BR2_powerpc
config BR2_ENDIAN
default "BIG"
config BR2_GCC_TARGET_TUNE
default "401" if BR2_powerpc_401
default "403" if BR2_powerpc_403
default "405" if BR2_powerpc_405
default "405fp" if BR2_powerpc_405fp
default "440" if BR2_powerpc_440
default "440fp" if BR2_powerpc_440fp
default "464" if BR2_powerpc_464
default "464fp" if BR2_powerpc_464fp
default "476" if BR2_powerpc_476
default "476fp" if BR2_powerpc_476fp
default "505" if BR2_powerpc_505
default "601" if BR2_powerpc_601
default "602" if BR2_powerpc_602
default "603" if BR2_powerpc_603
default "603e" if BR2_powerpc_603e
default "604" if BR2_powerpc_604
default "604e" if BR2_powerpc_604e
default "620" if BR2_powerpc_620
default "630" if BR2_powerpc_630
default "740" if BR2_powerpc_740
default "7400" if BR2_powerpc_7400
default "7450" if BR2_powerpc_7450
default "750" if BR2_powerpc_750
default "821" if BR2_powerpc_821
default "823" if BR2_powerpc_823
default "860" if BR2_powerpc_860
default "970" if BR2_powerpc_970
default "8540" if BR2_powerpc_8540
default "8548" if BR2_powerpc_8548
default "e300c2" if BR2_powerpc_e300c2
default "e300c3" if BR2_powerpc_e300c3
default "e500mc" if BR2_powerpc_e500mc
config BR2_GCC_TARGET_ABI
default "altivec" if BR2_PPC_ABI_altivec
default "no-altivec" if BR2_PPC_ABI_no-altivec
default "spe" if BR2_PPC_ABI_spe
default "no-spe" if BR2_PPC_ABI_no-spe
default "ibmlongdouble" if BR2_PPC_ABI_ibmlongdouble
default "ieeelongdouble" if BR2_PPC_ABI_ieeelongdouble