powerpc: Use -mcpu=power7 on ppc64 little endian builds

Using -mcpu=power7 allows gcc to use a number of new instructions
including 64 bit byte reversed loads.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 5 insertions, 4 deletions

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 6704e2e20e6b..c2a566fb8bb8 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -93,22 +93,23 @@ choice
 
 config GENERIC_CPU
         bool "Generic"
+        depends on !CPU_LITTLE_ENDIAN
 
 config CELL_CPU
         bool "Cell Broadband Engine"
-        depends on PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER4_CPU
         bool "POWER4"
-        depends on PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER5_CPU
         bool "POWER5"
-        depends on PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER6_CPU
         bool "POWER6"
-        depends on PPC_BOOK3S_64
+        depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER7_CPU
         bool "POWER7"