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 915a7ac6a91a47703e4f239c0a206a6aca11e390..25f8a9c2ba1a601aa09cfc5829472fcf0c1c4f72 100644 (file)
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -9,7 +9,6 @@ menu "Processor support"
 choice
        prompt "Processor Type"
        depends on PPC32
 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,
        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 @@ choice
 
          If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
 
 
          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
 
        bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
        select PPC_FPU
 


@@ -57,13 +56,11 @@ config E200
 
 endchoice
 
 
 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
 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"
 
 config POWER4_ONLY
        bool "Optimize for POWER4"


@@ -74,6 +71,10 @@ config POWER4_ONLY
          The resulting binary will not work on POWER3 or RS64 processors
          when compiled with binutils 2.15 or later.
 
          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
 config POWER3
        bool
        depends on PPC64 && PPC_BOOK3S


@@ -202,9 +203,8 @@ config SPE
          If in doubt, say Y here.
 
 config PPC_STD_MMU
          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
 
 config PPC_STD_MMU_32
        def_bool y