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))
+++ /dev/null
-/*
- * (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;
-}
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 \
--- /dev/null
+/*
+ * (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;
+}
projects / u-boot / commitdiff