Blackfin: unify cpu and boot modes

All of the duplicated code for Blackfin processors and boot modes have been
unified.  After all, the core is the same for all processors, just the
peripheral set differs (which gets handled in the drivers).

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

5 files changed, 232 insertions, 287 deletions

diff --git a/lib_blackfin/Makefile b/lib_blackfin/Makefile
index dfaed6d..b53cdd6 100644
--- a/lib_blackfin/Makefile
+++ b/lib_blackfin/Makefile
@@ -34,12 +34,12 @@ SOBJS-y	+= memcpy.o
 SOBJS-y	+= memmove.o
 SOBJS-y	+= memset.o
 
-COBJS-y	+= bf533_string.o
 COBJS-y	+= board.o
 COBJS-y	+= bootm.o
 COBJS-y	+= cache.o
 COBJS-y	+= muldi3.o
 COBJS-y	+= post.o
+COBJS-y	+= string.o
 COBJS-y	+= tests.o
 
 SRCS 	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
diff --git a/lib_blackfin/bf533_string.c b/lib_blackfin/bf533_string.c
deleted file mode 100644
index 9ceeeef..0000000
--- a/lib_blackfin/bf533_string.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * U-boot - bf533_string.c Contains library routines.
- *
- * Copyright (c) 2005-2007 Analog Devices Inc.
- *
- * (C) Copyright 2000-2004
- * 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., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include <common.h>
-#include <config.h>
-#include <asm/blackfin.h>
-#include <asm/io.h>
-#include "cache.h"
-#include <asm/mach-common/bits/dma.h>
-
-char *strcpy(char *dest, const char *src)
-{
-	char *xdest = dest;
-	char temp = 0;
-
-	__asm__ __volatile__
-	    ("1:\t%2 = B [%1++] (Z);\n\t"
-	     "B [%0++] = %2;\n\t"
-	     "CC = %2;\n\t"
-	     "if cc jump 1b (bp);\n":"=a"(dest), "=a"(src), "=d"(temp)
-	     :"0"(dest), "1"(src), "2"(temp):"memory");
-
-	return xdest;
-}
-
-char *strncpy(char *dest, const char *src, size_t n)
-{
-	char *xdest = dest;
-	char temp = 0;
-
-	if (n == 0)
-		return xdest;
-
-	__asm__ __volatile__
-	    ("1:\t%3 = B [%1++] (Z);\n\t"
-	     "B [%0++] = %3;\n\t"
-	     "CC = %3;\n\t"
-	     "if ! cc jump 2f;\n\t"
-	     "%2 += -1;\n\t"
-	     "CC = %2 == 0;\n\t"
-	     "if ! cc jump 1b (bp);\n"
-	     "2:\n":"=a"(dest), "=a"(src), "=da"(n), "=d"(temp)
-	     :"0"(dest), "1"(src), "2"(n), "3"(temp)
-	     :"memory");
-
-	return xdest;
-}
-
-int strcmp(const char *cs, const char *ct)
-{
-	char __res1, __res2;
-
-	__asm__("1:\t%2 = B[%0++] (Z);\n\t"	/* get *cs */
-		"%3 = B[%1++] (Z);\n\t"	/* get *ct */
-		"CC = %2 == %3;\n\t"	/* compare a byte */
-		"if ! cc jump 2f;\n\t"	/* not equal, break out */
-		"CC = %2;\n\t"	/* at end of cs? */
-		"if cc jump 1b (bp);\n\t"	/* no, keep going */
-		"jump.s 3f;\n"	/* strings are equal */
-		"2:\t%2 = %2 - %3;\n"	/* *cs - *ct */
-      "3:\n":	"=a"(cs), "=a"(ct), "=d"(__res1), "=d"(__res2)
-      :	"0"(cs), "1"(ct));
-
-	return __res1;
-}
-
-int strncmp(const char *cs, const char *ct, size_t count)
-{
-	char __res1, __res2;
-
-	if (!count)
-		return 0;
-
-	__asm__("1:\t%3 = B[%0++] (Z);\n\t"	/* get *cs */
-		"%4 = B[%1++] (Z);\n\t"	/* get *ct */
-		"CC = %3 == %4;\n\t"	/* compare a byte */
-		"if ! cc jump 3f;\n\t"	/* not equal, break out */
-		"CC = %3;\n\t"	/* at end of cs? */
-		"if ! cc jump 4f;\n\t"	/* yes, all done */
-		"%2 += -1;\n\t"	/* no, adjust count */
-		"CC = %2 == 0;\n\t" "if ! cc jump 1b;\n"	/* more to do, keep going */
-		"2:\t%3 = 0;\n\t"	/* strings are equal */
-		"jump.s    4f;\n" "3:\t%3 = %3 - %4;\n"	/* *cs - *ct */
-      "4:":	"=a"(cs), "=a"(ct), "=da"(count), "=d"(__res1),
-		"=d"(__res2)
-      :	"0"(cs), "1"(ct), "2"(count));
-
-	return __res1;
-}
-
-#ifndef pMDMA_D0_IRQ_STATUS
-# define pMDMA_D0_IRQ_STATUS pMDMA1_D0_IRQ_STATUS
-# define pMDMA_D0_START_ADDR pMDMA1_D0_START_ADDR
-# define pMDMA_D0_X_COUNT    pMDMA1_D0_X_COUNT
-# define pMDMA_D0_X_MODIFY   pMDMA1_D0_X_MODIFY
-# define pMDMA_D0_CONFIG     pMDMA1_D0_CONFIG
-# define pMDMA_S0_IRQ_STATUS pMDMA1_S0_IRQ_STATUS
-# define pMDMA_S0_START_ADDR pMDMA1_S0_START_ADDR
-# define pMDMA_S0_X_COUNT    pMDMA1_S0_X_COUNT
-# define pMDMA_S0_X_MODIFY   pMDMA1_S0_X_MODIFY
-# define pMDMA_S0_CONFIG     pMDMA1_S0_CONFIG
-#endif
-
-static void *dma_memcpy(void *dest, const void *src, size_t count)
-{
-	*pMDMA_D0_IRQ_STATUS = DMA_DONE | DMA_ERR;
-
-	/* Copy sram functions from sdram to sram */
-	/* Setup destination start address */
-	*pMDMA_D0_START_ADDR = (volatile void **)dest;
-	/* Setup destination xcount */
-	*pMDMA_D0_X_COUNT = count;
-	/* Setup destination xmodify */
-	*pMDMA_D0_X_MODIFY = 1;
-
-	/* Setup Source start address */
-	*pMDMA_S0_START_ADDR = (volatile void **)src;
-	/* Setup Source xcount */
-	*pMDMA_S0_X_COUNT = count;
-	/* Setup Source xmodify */
-	*pMDMA_S0_X_MODIFY = 1;
-
-	/* Enable source DMA */
-	*pMDMA_S0_CONFIG = (DMAEN);
-	SSYNC();
-
-	*pMDMA_D0_CONFIG = (WNR | DMAEN);
-
-	while (*pMDMA_D0_IRQ_STATUS & DMA_RUN) {
-		*pMDMA_D0_IRQ_STATUS |= (DMA_DONE | DMA_ERR);
-	}
-	*pMDMA_D0_IRQ_STATUS |= (DMA_DONE | DMA_ERR);
-
-	dest += count;
-	src += count;
-	return dest;
-}
-
-/*
- * memcpy - Copy one area of memory to another
- * @dest: Where to copy to
- * @src: Where to copy from
- * @count: The size of the area.
- *
- * You should not use this function to access IO space, use memcpy_toio()
- * or memcpy_fromio() instead.
- */
-extern void *memcpy_ASM(void *dest, const void *src, size_t count);
-void *memcpy(void *dest, const void *src, size_t count)
-{
-	char *tmp = (char *) dest, *s = (char *) src;
-
-	if (dcache_status()) {
-		blackfin_dcache_flush_range(src, src+count);
-	}
-	/* L1_INST_SRAM can only be accessed via dma */
-	if ((tmp >= (char *)L1_INST_SRAM) && (tmp < (char *)L1_INST_SRAM_END)) {
-		/* L1 is the destination */
-		dma_memcpy(dest,src,count);
-	} else if ((s >= (char *)L1_INST_SRAM) && (s < (char *)L1_INST_SRAM_END)) {
-		/* L1 is the source */
-		dma_memcpy(dest,src,count);
-
-		if (icache_status()) {
-			blackfin_icache_flush_range(dest, dest+count);
-		}
-		if (dcache_status()) {
-			blackfin_dcache_invalidate_range(dest, dest+count);
-		}
-	} else {
-		memcpy_ASM(dest,src,count);
-	}
-	return dest;
-}
diff --git a/lib_blackfin/board.c b/lib_blackfin/board.c
index 2a5a2fc..140ec07 100644
--- a/lib_blackfin/board.c
+++ b/lib_blackfin/board.c
@@ -37,7 +37,7 @@
 #include <asm/cplb.h>
 #include "../drivers/net/smc91111.h"
 
-#if defined(CONFIG_BF537)&&defined(CONFIG_POST)
+#if defined(CONFIG_POST)
 #include <post.h>
 int post_flag;
 #endif
@@ -192,21 +192,8 @@ void init_cplbtables(void)
 		}
 		j++;
 	}
-#if defined(CONFIG_BF561)
-	/* MAC space */
-	icplb_table[j][0] = 0x2C000000;
-	icplb_table[j][1] = SDRAM_INON_CHBL;
-	j++;
-	/* Async Memory space */
-	for (i = 0; i < 3; i++) {
-		icplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024;
-		icplb_table[j][1] = SDRAM_INON_CHBL;
-		j++;
-	}
-#else
 	icplb_table[j][0] = 0x20000000;
 	icplb_table[j][1] = SDRAM_INON_CHBL;
-#endif
 	j = 0;
 	dcplb_table[j][0] = 0xFF800000;
 	dcplb_table[j][1] = L1_DMEMORY;
@@ -223,22 +210,8 @@ void init_cplbtables(void)
 		j++;
 	}
 
-#if defined(CONFIG_BF561)
-	/* MAC space */
-	dcplb_table[j][0] = 0x2C000000;
-	dcplb_table[j][1] = SDRAM_EBIU;
-	j++;
-
-	/* Flash space */
-	for (i = 0; i < 3; i++) {
-		dcplb_table[j][0] = 0x20000000 + i * 4 * 1024 * 1024;
-		dcplb_table[j][1] = SDRAM_EBIU;
-		j++;
-	}
-#else
 	dcplb_table[j][0] = 0x20000000;
 	dcplb_table[j][1] = SDRAM_EBIU;
-#endif
 }
 
 /*
@@ -275,7 +248,7 @@ void board_init_f(ulong bootflag)
 	memset((void *)bd, 0, sizeof(bd_t));
 
 	/* Initialize */
-	init_IRQ();
+	irq_init();
 	env_init();		/* initialize environment */
 	init_baudrate();	/* initialze baudrate settings */
 	serial_init();		/* serial communications setup */
@@ -304,7 +277,7 @@ void board_init_f(ulong bootflag)
 	       get_vco() / 1000000, get_cclk() / 1000000, get_sclk() / 1000000);
 	printf("SDRAM: ");
 	print_size(initdram(0), "\n");
-#if defined(CONFIG_BF537)&&defined(CONFIG_POST)
+#if defined(CONFIG_POST)
 	post_init_f();
 	post_bootmode_init();
 	post_run(NULL, POST_ROM | post_bootmode_get(0));
@@ -333,12 +306,12 @@ void board_init_r(gd_t * id, ulong dest_addr)
 	gd->flags |= GD_FLG_RELOC;	/* tell others: relocation done */
 	bd = gd->bd;
 
-#if    defined(CONFIG_BF537) && defined(CONFIG_POST)
+#if defined(CONFIG_POST)
 	post_output_backlog();
 	post_reloc();
 #endif
 
-#if	(CONFIG_STAMP || CONFIG_BF537 || CONFIG_EZKIT561) && !defined(CFG_NO_FLASH)
+#if	!defined(CFG_NO_FLASH)
 	/* There are some other pointer constants we must deal with */
 	/* configure available FLASH banks */
 	size = flash_init();
@@ -434,7 +407,7 @@ void board_init_r(gd_t * id, ulong dest_addr)
 	display_global_data();
 #endif
 
-#if defined(CONFIG_BF537) && defined(CONFIG_POST)
+#if defined(CONFIG_POST)
 	if (post_flag)
 		post_run(NULL, POST_RAM | post_bootmode_get(0));
 #endif
diff --git a/lib_blackfin/bootm.c b/lib_blackfin/bootm.c
index 1ea80f4..bea11ed 100644
--- a/lib_blackfin/bootm.c
+++ b/lib_blackfin/bootm.c
@@ -1,52 +1,39 @@
 /*
- * U-boot - bf533_linux.c
+ * U-boot - bootm.c - misc boot helper functions
  *
- * Copyright (c) 2005-2007 Analog Devices Inc.
+ * Copyright (c) 2005-2008 Analog Devices Inc.
  *
  * (C) Copyright 2000-2004
  * 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., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
+ * Licensed under the GPL-2 or later.
  */
 
-/* Dummy functions, currently not in Use */
-
 #include <common.h>
 #include <command.h>
 #include <image.h>
-#include <zlib.h>
-#include <asm/byteorder.h>
+#include <asm/blackfin.h>
 
-#define	LINUX_MAX_ENVS		256
-#define	LINUX_MAX_ARGS		256
-
-#define CMD_LINE_ADDR 0xFF900000	/* L1 scratchpad */
+extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);
 
 #ifdef SHARED_RESOURCES
 extern void swap_to(int device_id);
 #endif
 
-extern void flush_instruction_cache(void);
-extern void flush_data_cache(void);
-static char *make_command_line(void);
+static char *make_command_line(void)
+{
+	char *dest = (char *)CMD_LINE_ADDR;
+	char *bootargs = getenv("bootargs");
+
+	if (bootargs == NULL)
+		return NULL;
+
+	strncpy(dest, bootargs, 0x1000);
+	dest[0xfff] = 0;
+	return dest;
+}
 
-void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
+void do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[],
 		    bootm_headers_t *images)
 {
 	int	(*appl) (char *cmdline);
@@ -54,7 +41,7 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
 	ulong	ep = 0;
 
 	if (!images->autostart)
-		return ;
+		return;
 
 #ifdef SHARED_RESOURCES
 	swap_to(FLASH);
@@ -80,33 +67,13 @@ void do_bootm_linux(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[],
 
 	printf("Starting Kernel at = %x\n", appl);
 	cmdline = make_command_line();
-	if (icache_status()) {
-		flush_instruction_cache();
-		icache_disable();
-	}
-	if (dcache_status()) {
-		flush_data_cache();
-		dcache_disable();
-	}
+	icache_disable();
+	dcache_disable();
 	(*appl) (cmdline);
 	/* does not return */
 	return;
 
-error:
+ error:
 	if (images->autostart)
 		do_reset (cmdtp, flag, argc, argv);
-	return;
-}
-
-char *make_command_line(void)
-{
-	char *dest = (char *)CMD_LINE_ADDR;
-	char *bootargs;
-
-	if ((bootargs = getenv("bootargs")) == NULL)
-		return NULL;
-
-	strncpy(dest, bootargs, 0x1000);
-	dest[0xfff] = 0;
-	return dest;
 }
diff --git a/lib_blackfin/string.c b/lib_blackfin/string.c
new file mode 100644
index 0000000..6887c93
--- /dev/null
+++ b/lib_blackfin/string.c
@@ -0,0 +1,203 @@
+/*
+ * U-boot - string.c Contains library routines.
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * 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., 51 Franklin St, Fifth Floor, Boston,
+ * MA 02110-1301 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/blackfin.h>
+#include <asm/io.h>
+#include <asm/mach-common/bits/dma.h>
+
+char *strcpy(char *dest, const char *src)
+{
+	char *xdest = dest;
+	char temp = 0;
+
+	__asm__ __volatile__ (
+		"1:\t%2 = B [%1++] (Z);\n\t"
+		"B [%0++] = %2;\n\t"
+		"CC = %2;\n\t"
+		"if cc jump 1b (bp);\n"
+		: "=a"(dest), "=a"(src), "=d"(temp)
+		: "0"(dest), "1"(src), "2"(temp)
+		: "memory");
+
+	return xdest;
+}
+
+char *strncpy(char *dest, const char *src, size_t n)
+{
+	char *xdest = dest;
+	char temp = 0;
+
+	if (n == 0)
+		return xdest;
+
+	__asm__ __volatile__ (
+		"1:\t%3 = B [%1++] (Z);\n\t"
+		"B [%0++] = %3;\n\t"
+		"CC = %3;\n\t"
+		"if ! cc jump 2f;\n\t"
+		"%2 += -1;\n\t"
+		"CC = %2 == 0;\n\t"
+		"if ! cc jump 1b (bp);\n"
+		"2:\n"
+		: "=a"(dest), "=a"(src), "=da"(n), "=d"(temp)
+		: "0"(dest), "1"(src), "2"(n), "3"(temp)
+		: "memory");
+
+	return xdest;
+}
+
+int strcmp(const char *cs, const char *ct)
+{
+	char __res1, __res2;
+
+	__asm__ (
+		"1:\t%2 = B[%0++] (Z);\n\t"	/* get *cs */
+		"%3 = B[%1++] (Z);\n\t"	/* get *ct */
+		"CC = %2 == %3;\n\t"	/* compare a byte */
+		"if ! cc jump 2f;\n\t"	/* not equal, break out */
+		"CC = %2;\n\t"	/* at end of cs? */
+		"if cc jump 1b (bp);\n\t"	/* no, keep going */
+		"jump.s 3f;\n"	/* strings are equal */
+		"2:\t%2 = %2 - %3;\n"	/* *cs - *ct */
+		"3:\n"
+		: "=a"(cs), "=a"(ct), "=d"(__res1), "=d"(__res2)
+		: "0"(cs), "1"(ct));
+
+	return __res1;
+}
+
+int strncmp(const char *cs, const char *ct, size_t count)
+{
+	char __res1, __res2;
+
+	if (!count)
+		return 0;
+
+	__asm__(
+		"1:\t%3 = B[%0++] (Z);\n\t"	/* get *cs */
+		"%4 = B[%1++] (Z);\n\t"	/* get *ct */
+		"CC = %3 == %4;\n\t"	/* compare a byte */
+		"if ! cc jump 3f;\n\t"	/* not equal, break out */
+		"CC = %3;\n\t"	/* at end of cs? */
+		"if ! cc jump 4f;\n\t"	/* yes, all done */
+		"%2 += -1;\n\t"	/* no, adjust count */
+		"CC = %2 == 0;\n\t" "if ! cc jump 1b;\n"	/* more to do, keep going */
+		"2:\t%3 = 0;\n\t"	/* strings are equal */
+		"jump.s    4f;\n" "3:\t%3 = %3 - %4;\n"	/* *cs - *ct */
+		"4:"
+		: "=a"(cs), "=a"(ct), "=da"(count), "=d"(__res1), "=d"(__res2)
+		: "0"(cs), "1"(ct), "2"(count));
+
+	return __res1;
+}
+
+#ifdef bfin_write_MDMA1_D0_IRQ_STATUS
+# define bfin_write_MDMA_D0_IRQ_STATUS bfin_write_MDMA1_D0_IRQ_STATUS
+# define bfin_write_MDMA_D0_START_ADDR bfin_write_MDMA1_D0_START_ADDR
+# define bfin_write_MDMA_D0_X_COUNT    bfin_write_MDMA1_D0_X_COUNT
+# define bfin_write_MDMA_D0_X_MODIFY   bfin_write_MDMA1_D0_X_MODIFY
+# define bfin_write_MDMA_D0_CONFIG     bfin_write_MDMA1_D0_CONFIG
+# define bfin_write_MDMA_S0_START_ADDR bfin_write_MDMA1_S0_START_ADDR
+# define bfin_write_MDMA_S0_X_COUNT    bfin_write_MDMA1_S0_X_COUNT
+# define bfin_write_MDMA_S0_X_MODIFY   bfin_write_MDMA1_S0_X_MODIFY
+# define bfin_write_MDMA_S0_CONFIG     bfin_write_MDMA1_S0_CONFIG
+# define bfin_write_MDMA_D0_IRQ_STATUS bfin_write_MDMA1_D0_IRQ_STATUS
+# define bfin_read_MDMA_D0_IRQ_STATUS  bfin_read_MDMA1_D0_IRQ_STATUS
+#endif
+static void *dma_memcpy(void *dst, const void *src, size_t count)
+{
+	if (dcache_status())
+		blackfin_dcache_flush_range(src, src + count);
+
+	bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+	/* Copy sram functions from sdram to sram */
+	/* Setup destination start address */
+	bfin_write_MDMA_D0_START_ADDR(dst);
+	/* Setup destination xcount */
+	bfin_write_MDMA_D0_X_COUNT(count);
+	/* Setup destination xmodify */
+	bfin_write_MDMA_D0_X_MODIFY(1);
+
+	/* Setup Source start address */
+	bfin_write_MDMA_S0_START_ADDR(src);
+	/* Setup Source xcount */
+	bfin_write_MDMA_S0_X_COUNT(count);
+	/* Setup Source xmodify */
+	bfin_write_MDMA_S0_X_MODIFY(1);
+
+	/* Enable source DMA */
+	bfin_write_MDMA_S0_CONFIG(DMAEN);
+	SSYNC();
+
+	bfin_write_MDMA_D0_CONFIG(WNR | DMAEN);
+
+	while (bfin_read_MDMA_D0_IRQ_STATUS() & DMA_RUN)
+		bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | DMA_DONE | DMA_ERR);
+	bfin_write_MDMA_D0_IRQ_STATUS(bfin_read_MDMA_D0_IRQ_STATUS() | DMA_DONE | DMA_ERR);
+
+	if (icache_status())
+		blackfin_icache_flush_range(dst, dst + count);
+
+	if (dcache_status())
+		blackfin_dcache_invalidate_range(dst, dst + count);
+
+	return dst;
+}
+
+/*
+ * memcpy - Copy one area of memory to another
+ * @dest: Where to copy to
+ * @src: Where to copy from
+ * @count: The size of the area.
+ *
+ * We need to have this wrapper in memcpy() as common code may call memcpy()
+ * to load up L1 regions.  Consider loading an ELF which has sections with
+ * LMA's pointing to L1.  The common code ELF loader will simply use memcpy()
+ * to move the ELF's sections into the right place.  We need to catch that
+ * here and redirect to dma_memcpy().
+ */
+extern void *memcpy_ASM(void *dst, const void *src, size_t count);
+void *memcpy(void *dst, const void *src, size_t count)
+{
+	if (!count)
+		return dst;
+
+	if (addr_bfin_on_chip_mem(dst)) {
+		/* L1 is the destination */
+		return dma_memcpy(dst, src, count);
+
+	} else if (addr_bfin_on_chip_mem(src)) {
+		/* L1 is the source */
+		return dma_memcpy(dst, src, count);
+
+	} else
+		/* No L1 is involved, so just call regular memcpy */
+		return memcpy_ASM(dst, src, count);
+}