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 <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index c0dbdb0..ca2da30 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.