powerpc: Remove CONFIG_POWER4_ONLY

Remove CONFIG_POWER4_ONLY, the option is badly named and only does two
things:

- It wraps the MMU segment table code. With feature fixups there is
  little downside to compiling this in.

- It uses the newer mtocrf instruction in various assembly functions.
  Instead of making this a compile option just do it at runtime via
  a feature fixup.

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

1 files changed, 0 insertions, 9 deletions

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 425db18580a2..52e70f9b7a8f 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -86,15 +86,6 @@ config PPC_BOOK3E
         def_bool y
         depends on PPC_BOOK3E_64
 
-config POWER4_ONLY
-        bool "Optimize for POWER4"
-        depends on PPC64 && PPC_BOOK3S
-        default n
-        ---help---
-          Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
-          The resulting binary will not work on POWER3 or RS64 processors
-          when compiled with binutils 2.15 or later.
-
 config 6xx
         def_bool y
         depends on PPC32 && PPC_BOOK3S