[POWERPC] 8xx: generic 8xx code arch/powerpc port

Including support for non-coherent cache, some mm-related things +
relevant field in Kconfig and Makefiles. Also included rheap.o compilation
if 8xx is defined.

Non-coherent mapping were refined and renamed according to Cristoph
Hellwig. Orphaned functions were cleaned up.

[Also removed arch/ppc/kernel/dma-mapping.c, because otherwise
compiling with ARCH=ppc for a non DMA-cache-coherent platform ends up
with two copies of __dma_alloc_coherent etc.
 -- paulus.]

Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

4 files changed, 11 insertions, 27 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 54d77a5b59f6..ce431b4446f0 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -173,6 +173,11 @@ config PPC_86xx
         help
           The Freescale E600 SoCs have 74xx cores.
 
+config PPC_8xx
+        bool "Freescale 8xx"
+        select FSL_SOC
+        select 8xx
+
 config 40x
         bool "AMCC 40x"
         select PPC_DCR_NATIVE
@@ -181,8 +186,6 @@ config 44x
         bool "AMCC 44x"
         select PPC_DCR_NATIVE
 
-config 8xx
-        bool "Freescale 8xx"
 
 config E200
         bool "Freescale e200"
@@ -211,6 +214,10 @@ config 6xx
         bool
 
 # this is temp to handle compat with arch=ppc
+config 8xx
+        bool
+
+# this is temp to handle compat with arch=ppc
 config 83xx
         bool
 
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index a0360ae10d0c..e2d414160c83 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_PPC64)	+= checksum_64.o copypage_64.o copyuser_64.o \
                            strcase.o
 obj-$(CONFIG_QUICC_ENGINE) += rheap.o
 obj-$(CONFIG_XMON)      += sstep.o
+obj-$(CONFIG_NOT_COHERENT_CACHE)        += dma-noncoherent.o
 
 ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_SMP)       += locks.o
@@ -24,5 +25,6 @@ endif
 
 # Temporary hack until we have migrated to asm-powerpc
 ifeq ($(CONFIG_PPC_MERGE),y)
+obj-$(CONFIG_8xx)       += rheap.o
 obj-$(CONFIG_CPM2)      += rheap.o
 endif
diff --git a/arch/ppc/kernel/dma-mapping.c b/arch/powerpc/lib/dma-noncoherent.c
index 10fec7363962..48f3d13a3de5 100644
--- a/arch/ppc/kernel/dma-mapping.c
+++ b/arch/powerpc/lib/dma-noncoherent.c
@@ -22,37 +22,13 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/module.h>
-#include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/string.h>
 #include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/stddef.h>
-#include <linux/vmalloc.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/bootmem.h>
 #include <linux/highmem.h>
 #include <linux/dma-mapping.h>
-#include <linux/hardirq.h>
-
-#include <asm/pgalloc.h>
-#include <asm/prom.h>
-#include <asm/io.h>
-#include <asm/mmu_context.h>
-#include <asm/pgtable.h>
-#include <asm/mmu.h>
-#include <asm/uaccess.h>
-#include <asm/smp.h>
-#include <asm/machdep.h>
-
-int map_page(unsigned long va, phys_addr_t pa, int flags);
 
 #include <asm/tlbflush.h>
 
diff --git a/arch/ppc/kernel/Makefile b/arch/ppc/kernel/Makefile
index 466437f4bcbb..6b4f022111e7 100644
--- a/arch/ppc/kernel/Makefile
+++ b/arch/ppc/kernel/Makefile
@@ -12,7 +12,6 @@ obj-y				:= entry.o traps.o time.o misc.o \
                                         setup.o \
                                         ppc_htab.o
 obj-$(CONFIG_MODULES)           += ppc_ksyms.o
-obj-$(CONFIG_NOT_COHERENT_CACHE)        += dma-mapping.o
 obj-$(CONFIG_PCI)               += pci.o
 obj-$(CONFIG_RAPIDIO)           += rio.o
 obj-$(CONFIG_KGDB)              += ppc-stub.o