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, 16 deletions

diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile
index d122b29..5c67e1d 100644
--- a/arch/powerpc/cpu/mpc5xxx/Makefile
+++ b/arch/powerpc/cpu/mpc5xxx/Makefile
@@ -7,7 +7,6 @@
 
 extra-y	= start.o
 extra-y += traps.o
-obj-y  += cache.o
 obj-y  += io.o
 obj-y  += firmware_sc_task_bestcomm.impl.o
 obj-y += i2c.o
diff --git a/arch/powerpc/cpu/mpc5xxx/cache.c b/arch/powerpc/cpu/mpc5xxx/cache.c
deleted file mode 100644
index 5d674bc..0000000
--- a/arch/powerpc/cpu/mpc5xxx/cache.c
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * 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)
-{
-}