[PATCH] powerpc: move mmio_nvram.c over to arch/powerpc

The nvram code formally known as bpa_nvram.c is rather
generic really, so it is quite likely to be useful to
future boards not based on cell.

This patch puts it into arch/powerpc/sysdev.
Signed-off-by: Arnd Bergmann <arndb@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/Kconfig

@@ -325,6 +325,7 @@ config PPC_CELL
 	depends on PPC_MULTIPLATFORM && PPC64
 	select PPC_RTAS
 	select RTAS_FW
+	select MMIO_NVRAM
 
 config PPC_OF
 	bool
@@ -360,6 +361,10 @@ config RTAS_FW
 	depends on PPC_RTAS
 	default n
 
+config MMIO_NVRAM
+	bool
+	default n
+
 config MPIC_BROKEN_U3
 	bool
 	depends on PPC_MAPLE

arch/powerpc/sysdev/Makefile

@@ -5,3 +5,4 @@ obj-$(CONFIG_PPC_MPC106)	+= grackle.o
 obj-$(CONFIG_BOOKE)		+= dcr.o
 obj-$(CONFIG_40x)		+= dcr.o
 obj-$(CONFIG_U3_DART)		+= u3_iommu.o
+obj-$(CONFIG_MMIO_NVRAM)	+= mmio_nvram.o

arch/ppc64/kernel/Makefile

@@ -31,7 +31,7 @@ endif
 
 obj-$(CONFIG_PPC_PSERIES) += rtasd.o udbg_16550.o
 
-obj-$(CONFIG_PPC_CELL) += bpa_setup.o bpa_iommu.o bpa_nvram.o \
+obj-$(CONFIG_PPC_CELL) += bpa_setup.o bpa_iommu.o \
 			 bpa_iic.o spider-pic.o
 
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o