[POWERPC] Create and use CONFIG_WORD_SIZE

Linus made this suggestion for the x86 merge and this starts the process
for powerpc.  We assume that CONFIG_PPC64 implies CONFIG_PPC_MERGE and
CONFIG_PPC_STD_MMU_32 implies CONFIG_PPC_STD_MMU.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/ppc/Kconfig b/arch/ppc/Kconfig
index c1b34eb383cf..c2087f645ad3 100644
--- a/arch/ppc/Kconfig
+++ b/arch/ppc/Kconfig
@@ -4,6 +4,10 @@
 
 mainmenu "Linux/PowerPC Kernel Configuration"
 
+config WORD_SIZE
+        int
+        default 32
+
 config MMU
         bool
         default y