[PATCH 3/3] powerpc: Allow CPU selection of e300core variants

[Christophe Leroy]

GCC supports -mcpu=e300c2 and -mcpu=e300c3

This patch gives the opportunity to tune kernel to one of
those two types.

Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 arch/powerpc/platforms/Kconfig.cputype | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/platforms/Kconfig.cputype 
b/arch/powerpc/platforms/Kconfig.cputype
index ed7c6edec87e..d174acb41389 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -145,6 +145,14 @@ config 860_CPU
        bool "8xx family"
        depends on PPC_8xx
 
+config E300C2_CPU
+       bool "e300c2 (832x)"
+       depends on PPC_BOOK3S_32
+
+config E300C3_CPU
+       bool "e300c3 (831x)"
+       depends on PPC_BOOK3S_32
+
 endchoice
 
 config SPECIAL_CPU_BOOL
@@ -161,6 +169,8 @@ config SPECIAL_CPU
        default "power8" if POWER8_CPU
        default "power9" if POWER9_CPU
        default "860" if 860_CPU
+       default "e300c2" if E300C2_CPU
+       default "e300c3" if E300C3_CPU
 
 config PPC_BOOK3S
        def_bool y
-- 
2.13.3