powerpc: Introduce CONFIG_PPC_BOOK3S
This patch introduce a new Kconfig option, CONFIG_PPC_BOOK3S
that represents processors that are compliant with the "classic"
(aka "server") variant of the PowerPC architecture.
It replaces CONFIG_6xx on 32-bit (though the symbol is still
defined for compatibility) and encompass all currently supported
64-bit processors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 915a7ac..25f8a9c 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -9,7 +9,6 @@
choice
prompt "Processor Type"
depends on PPC32
- default 6xx
help
There are five families of 32 bit PowerPC chips supported.
The most common ones are the desktop and server CPUs (601, 603,
@@ -21,7 +20,7 @@
If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
-config 6xx
+config PPC_BOOK3S
bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
select PPC_FPU
@@ -57,13 +56,11 @@
endchoice
-# Until we have a choice of exclusive CPU types on 64-bit, we always
-# use PPC_BOOK3S. On 32-bit, this is equivalent to 6xx which is
-# "classic" MMU
-
config PPC_BOOK3S
- def_bool y
- depends on PPC64 || 6xx
+ default y
+ depends on PPC64
+ select PPC_FPU
+
config POWER4_ONLY
bool "Optimize for POWER4"
@@ -74,6 +71,10 @@
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
+
config POWER3
bool
depends on PPC64 && PPC_BOOK3S
@@ -202,9 +203,8 @@
If in doubt, say Y here.
config PPC_STD_MMU
- bool
- depends on 6xx || PPC64
- default y
+ def_bool y
+ depends on PPC_BOOK3S
config PPC_STD_MMU_32
def_bool y