[POWERPC] 83xx: Make 83xx perfmon support selectable

Not all e300 cores support the performance monitors, and the ones
that don't will be confused by the mf/mtpmr instructions.  This
allows the support to be optional, so the 8349 can turn it off
while the 8379 can turn it on.  Sadly, those aren't config options,
so it will be left to the defconfigs and the users to make that
determination.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 0afd225..a578b96 100644 (file)
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -22,7 +22,6 @@ config PPC_83xx
        select FSL_SOC
        select MPC83xx
        select IPIC
-       select FSL_EMB_PERFMON
 
 config PPC_86xx
        bool "Freescale 86xx"

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 73d81ce..0c3face 100644 (file)
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -113,7 +113,12 @@ config FSL_BOOKE
        default y
 
 config FSL_EMB_PERFMON
-       bool
+       bool "Freescale Embedded Perfmon"
+       depends on E500 || PPC_83xx
+       help
+         This is the Performance Monitor support found on the e500 core
+         and some e300 cores (c3 and c4).  Select this only if your
+         core supports the Embedded Performance Monitor APU
 
 config PTE_64BIT
        bool