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toolchain: add powerpc SPE ABI support

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Add the ability for buildroot to build an SPE ABI enabled toolchain.

This is mandatory for e500v1/v2 cores since they don't support classic
FPU mode as the e500mc does.

Useful for Freescale's PowerQUICC III and single/dual-core QorIQ
line of processors.

The new TARGET_ABI variable is used rather than TARGET_CFLAGS for
uclibc's UCLIBC_EXTRA_CFLAGS to avoid breakish CFLAGS leaking in, a
good example being -mthumb for ARM.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
This commit is contained in:
Gustavo Zacarias
2012-01-05 16:31:43 -03:00
committed by Peter Korsgaard
parent c2c06aad27
commit 5a6087d62e
4 changed files with 48 additions and 3 deletions
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21
target/Config.in.arch
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@@ -447,7 +447,9 @@ config BR2_powerpc_860
config BR2_powerpc_970
bool "970"
config BR2_powerpc_8540
bool "8540"
bool "8540 / e500v1"
config BR2_powerpc_8548
bool "8548 / e500v2"
comment "e300c2 needs gcc >= 4.4.x"
config BR2_powerpc_e300c2
bool "e300c2"
@@ -459,6 +461,22 @@ config BR2_powerpc_e500mc
bool "e500mc"
endchoice
choice
prompt "Target ABI"
depends on BR2_powerpc
default BR2_powerpc_CLASSIC if BR2_powerpc_e500mc
default BR2_powerpc_SPE if BR2_powerpc_8540 || BR2_powerpc_8548
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 || BR2_powerpc_e500mc
endchoice
config BR2_ARCH
string
default "arm" if BR2_arm
@@ -614,6 +632,7 @@ config BR2_GCC_TARGET_TUNE
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