MPC512x: workaround data corruption for unaligned local bus accesses

Commit 460c2ce3 "MPC5200: workaround data corruption for unaligned
local bus accesses" fixed the problem for MPC5200 only, but MPC512x is
affected as well, so apply the same fix here, too.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>

2 files changed, 0 insertions, 76 deletions

diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile
index 4ab2b7b..0ee0611 100644
--- a/arch/powerpc/cpu/mpc5xxx/Makefile
+++ b/arch/powerpc/cpu/mpc5xxx/Makefile
@@ -30,11 +30,6 @@ SOBJS	= io.o firmware_sc_task_bestcomm.impl.o
 COBJS	= i2c.o traps.o cpu.o cpu_init.o ide.o interrupts.o \
 	  loadtask.o pci_mpc5200.o serial.o speed.o usb_ohci.o usb.o
 
-# Workaround for local bus unaligned access problem on MPC5200
-#ifdef CONFIG_MPC5200
-COBJS	+= memcpy_mpc5200.o
-#endif
-
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
 START	:= $(addprefix $(obj),$(START))
diff --git a/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c b/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c
deleted file mode 100644
index 0950354..0000000
--- a/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * (C) Copyright 2010
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-/*
- * This is a workaround for issues on the MPC5200, where unaligned
- * 32-bit-accesses to the local bus will deliver corrupted data. This
- * happens for example when trying to use memcpy() from an odd NOR
- * flash address; the behaviour can be also seen when using "md" on an
- * odd NOR flash address (but there it is not a bug in U-Boot, which
- * only shows the behaviour of this processor).
- *
- * For memcpy(), we test if either the source or the target address
- * are not 32 bit aligned, and - if so - if the source address is in
- * NOR flash: in this case we perform a byte-wise (slow) then; for
- * aligned operations of non-flash areas we use the optimized (fast)
- * real __memcpy().  This way we minimize the performance impact of
- * this workaround.
- *
- */
-
-#include <common.h>
-#include <flash.h>
-#include <linux/types.h>
-
-void *memcpy(void *trg, const void *src, size_t len)
-{
-	extern void* __memcpy(void *, const void *, size_t);
-	char *s = (char *)src;
-	char *t = (char *)trg;
-	void *dest = (void *)src;
-
-	/*
-	 * Check is source address is in flash:
-	 * If not, we use the fast assembler code
-	 */
-	if (((((unsigned long)s & 3) == 0)	/* source aligned  */
-		&&				/*	AND	   */
-	     (((unsigned long)t & 3) == 0))	/* target aligned, */
-		||				/*	or	   */
-	    (addr2info((ulong)s) == NULL)) {	/* source not in flash */
-		return __memcpy(trg, src, len);
-	}
-
-	/*
-	 * Copying from flash, perform byte by byte copy.
-	 */
-	while (len-- > 0)
-		*t++ = *s++;
-
-	return dest;
-}