Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6] / arch / powerpc / platforms / Kconfig.cputype

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index e4b2aee53a73f2ce9815b5d63e19b318c44de006..4c315be250158fcfc1d1b24804f55ce76f137eb3 100644 (file)
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -36,10 +36,12 @@ config PPC_8xx
        bool "Freescale 8xx"
        select FSL_SOC
        select 8xx
+       select WANT_DEVICE_TREE
 
 config 40x
        bool "AMCC 40x"
        select PPC_DCR_NATIVE
+       select WANT_DEVICE_TREE
 
 config 44x
        bool "AMCC 44x"
@@ -69,6 +71,18 @@ config POWER4
        depends on PPC64
        def_bool y
 
+config TUNE_CELL
+       bool "Optimize for Cell Broadband Engine"
+       depends on PPC64
+       help
+         Cause the compiler to optimize for the PPE of the Cell Broadband
+         Engine. This will make the code run considerably faster on Cell
+         but somewhat slower on other machines. This option only changes
+         the scheduling of instructions, not the selection of instructions
+         itself, so the resulting kernel will keep running on all other
+         machines. When building a kernel that is supposed to run only
+         on Cell, you should also select the POWER4_ONLY option.
+
 config 6xx
        bool