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-rw-r--r--lib_blackfin/Makefile2
-rw-r--r--lib_blackfin/bf533_string.c198
-rw-r--r--lib_blackfin/board.c39
-rw-r--r--lib_blackfin/bootm.c77
-rw-r--r--lib_blackfin/string.c203
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);
+}