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Subject[RFC PATCH v1 06/19] powerpc/32s: Allow deselecting CONFIG_PPC_FPU on mpc832x
Date
The e300c2 core which is embedded in mpc832x CPU doesn't have
an FPU.

Make it possible to not select CONFIG_PPC_FPU when building a
kernel dedicated to that target.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/platforms/Kconfig.cputype | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 40ffcdba42b8..d4fd109f177e 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -32,7 +32,7 @@ choice
config PPC_BOOK3S_6xx
bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx except 601"
select PPC_BOOK3S_32
- select PPC_FPU
+ imply PPC_FPU
select PPC_HAVE_PMU_SUPPORT
select PPC_HAVE_KUEP
select PPC_HAVE_KUAP
@@ -229,9 +229,16 @@ config PPC_FPU_REGS
bool

config PPC_FPU
- bool
+ bool "Support for Floating Point Unit (FPU)" if PPC_MPC832x
default y if PPC64
select PPC_FPU_REGS
+ help
+ This must be enabled to support the Floating Point Unit
+ Most 6xx have an FPU but e300c2 core (mpc832x) don't have
+ an FPU, so when building an embedded kernel for that target
+ you can disable FPU support.
+
+ If unsure say Y.

config FSL_EMB_PERFMON
bool "Freescale Embedded Perfmon"
--
2.25.0
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