powerpc: Move cpu_setup_6xx.S and temp.c over to arch/powerpc

Also renamed temp.c to tau_6xx.c (for thermal assist unit) and updated
the Kconfig option description and help text for CONFIG_TAU.
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/Kconfig

@@ -491,7 +491,7 @@ config PPC601_SYNC_FIX
 	  If in doubt, say Y here.
 
 config TAU
-	bool "Thermal Management Support"
+	bool "On-chip CPU temperature sensor support"
 	depends on 6xx
 	help
 	  G3 and G4 processors have an on-chip temperature sensor called the
@@ -500,7 +500,7 @@ config TAU
 	  on-die temperature in /proc/cpuinfo if the cpu supports it.
 
 	  Unfortunately, on some chip revisions, this sensor is very inaccurate
-	  and in some cases, does not work at all, so don't assume the cpu
+	  and in many cases, does not work at all, so don't assume the cpu
 	  temp is actually what /proc/cpuinfo says it is.
 
 config TAU_INT

arch/powerpc/kernel/Makefile

@@ -34,7 +34,8 @@ obj-$(CONFIG_IBMEBUS)           += ibmebus.o
 obj-$(CONFIG_GENERIC_TBSYNC)	+= smp-tbsync.o
 obj64-$(CONFIG_PPC_MULTIPLATFORM) += nvram_64.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
-obj-$(CONFIG_6xx)		+= idle_6xx.o l2cr_6xx.o
+obj-$(CONFIG_6xx)		+= idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
+obj-$(CONFIG_TAU)		+= tau_6xx.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
 

arch/ppc/kernel/Makefile

@@ -13,7 +13,6 @@ extra-y				+= vmlinux.lds
 obj-y				:= entry.o traps.o time.o misc.o \
 					setup.o \
 					ppc_htab.o
-obj-$(CONFIG_6xx)		+= cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
 obj-$(CONFIG_MODULES)		+= module.o ppc_ksyms.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-mapping.o
@@ -21,7 +20,6 @@ obj-$(CONFIG_PCI)		+= pci.o
 obj-$(CONFIG_RAPIDIO)		+= rio.o
 obj-$(CONFIG_KGDB)		+= ppc-stub.o
 obj-$(CONFIG_SMP)		+= smp.o smp-tbsync.o
-obj-$(CONFIG_TAU)		+= temp.o
 ifndef CONFIG_E200
 obj-$(CONFIG_FSL_BOOKE)		+= perfmon_fsl_booke.o
 endif
@@ -34,12 +32,10 @@ endif
 # These are here while we do the architecture merge
 
 else
-obj-$(CONFIG_6xx)		+= cpu_setup_6xx.o
 obj-$(CONFIG_SOFTWARE_SUSPEND)	+= swsusp.o
 obj-$(CONFIG_MODULES)		+= module.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-mapping.o
 obj-$(CONFIG_KGDB)		+= ppc-stub.o
-obj-$(CONFIG_TAU)		+= temp.o
 ifndef CONFIG_E200
 obj-$(CONFIG_FSL_BOOKE)		+= perfmon_fsl_booke.o
 endif