powerpc: Set default CPU type to POWER8 for little endian builds

We supported POWER7 CPUs for bootstrapping little endian, but the
target was always POWER8. Now that POWER7 specific issues are
impacting performance, change the default target to POWER8.

Signed-off-by: Anton Blanchard <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index c0dbdb004f49a874f1c545ff50d8a378e1f2d1e7..ca2da30ad2ab2284092d6c39a7e885563774b899 100644 (file)
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -87,6 +87,7 @@ endchoice
 choice
        prompt "CPU selection"
        depends on PPC64
+       default POWER8_CPU if CPU_LITTLE_ENDIAN
        default GENERIC_CPU
        help
          This will create a kernel which is optimised for a particular CPU.