powerpc: add 2 common dcache assembly functions

This patch defines the 2 flush_dcache_range and invalidate_dcache_range
functions for all the powerpc architecture. Their implementation is
borrowed from the kernel's misc_32.S file and replace the ones from
mpc86xx and ppc4xx since they were equivalent.

This is a fix for the problem introduced by this patch:
http://patchwork.ozlabs.org/patch/448849/

Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <yorksun@freescale.com>

2 files changed, 0 insertions, 20 deletions

diff --git a/arch/powerpc/cpu/mpc85xx/Makefile b/arch/powerpc/cpu/mpc85xx/Makefile
index b93158b9ed..65c26c093c 100644
--- a/arch/powerpc/cpu/mpc85xx/Makefile
+++ b/arch/powerpc/cpu/mpc85xx/Makefile
@@ -114,7 +114,4 @@ endif
 obj-y	+= tlb.o
 obj-y	+= traps.o
 
-# Stub implementations of cache management functions for USB
-obj-y += cache.o
-
 endif # not minimal
diff --git a/arch/powerpc/cpu/mpc85xx/cache.c b/arch/powerpc/cpu/mpc85xx/cache.c
deleted file mode 100644
index 66384f988a..0000000000
--- a/arch/powerpc/cpu/mpc85xx/cache.c
+++ /dev/null
@@ -1,17 +0,0 @@
-/*
- * Copyright (C) 2012 Marek Vasut <marex@denx.de>
- *
- * This file contains stub implementation of
- *   invalidate_dcache_range()
- *   flush_dcache_range()
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-void invalidate_dcache_range(unsigned long start, unsigned long stop)
-{
-}
-
-void flush_dcache_range(unsigned long start, unsigned long stop)
-{
-}