From 4ccd5510e50b5675227a1fe0e5ca099d333f637d Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@denx.de>
Date: Tue, 29 Jun 2010 01:33:35 +0200
Subject: [PATCH] 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>
---
arch/powerpc/cpu/mpc5xxx/Makefile | 5 -----
arch/powerpc/lib/Makefile | 16 ++++++++++++----
.../{cpu/mpc5xxx => lib}/memcpy_mpc5200.c | 0
3 files changed, 12 insertions(+), 9 deletions(-)
rename arch/powerpc/{cpu/mpc5xxx => lib}/memcpy_mpc5200.c (100%)
diff --git a/arch/powerpc/cpu/mpc5xxx/Makefile b/arch/powerpc/cpu/mpc5xxx/Makefile
index 4ab2b7be76..0ee0611550 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/lib/Makefile b/arch/powerpc/lib/Makefile
index bf23790c42..2065b6d807 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -40,14 +40,22 @@ COBJS-y += interrupts.o
COBJS-$(CONFIG_CMD_KGDB) += kgdb.o
COBJS-y += time.o
-SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
-OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
-
-# Workaround for local bus unaligned access problem on MPC5200
+# Workaround for local bus unaligned access problems
+# on MPC512x and MPC5200
+ifdef CONFIG_MPC512X
+$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+COBJS-y += memcpy_mpc5200.o
+endif
ifdef CONFIG_MPC5200
$(obj)ppcstring.o: AFLAGS += -Dmemcpy=__memcpy
+COBJS-y += memcpy_mpc5200.o
endif
+COBJS += $(sort $(COBJS-y))
+
+SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
+
$(LIB): $(obj).depend $(OBJS)
@if ! $(CROSS_COMPILE)readelf -S $(OBJS) | grep -q '\.fixup.*PROGBITS';\
then \
diff --git a/arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c b/arch/powerpc/lib/memcpy_mpc5200.c
similarity index 100%
rename from arch/powerpc/cpu/mpc5xxx/memcpy_mpc5200.c
rename to arch/powerpc/lib/memcpy_mpc5200.c
--
2.39.5