From 509fc553bc6087a6f705b3bf52f3950d7d1eaa58 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Sat, 11 Oct 2008 20:45:44 -0400
Subject: [PATCH 1/5] Blackfin: set proper LDRFLAGS for parallel booting LDRs

In order to boot an LDR out of parallel flash, the ldr utility needs a few
flags to tell it to generate the right header.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 board/bf533-ezkit/config.mk | 6 ++++++
 board/bf533-stamp/config.mk | 6 ++++++
 board/bf537-stamp/config.mk | 5 ++++-
 board/bf561-ezkit/config.mk | 6 ++++++
 4 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/board/bf533-ezkit/config.mk b/board/bf533-ezkit/config.mk
index de80ffe7b..984792476 100644
--- a/board/bf533-ezkit/config.mk
+++ b/board/bf533-ezkit/config.mk
@@ -1,4 +1,6 @@
 #
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
 # (C) Copyright 2001
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
@@ -23,3 +25,7 @@
 
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
+
+# Set some default LDR flags based on boot mode.
+LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
+LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/bf533-stamp/config.mk b/board/bf533-stamp/config.mk
index de80ffe7b..984792476 100644
--- a/board/bf533-stamp/config.mk
+++ b/board/bf533-stamp/config.mk
@@ -1,4 +1,6 @@
 #
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
 # (C) Copyright 2001
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
@@ -23,3 +25,7 @@
 
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
+
+# Set some default LDR flags based on boot mode.
+LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
+LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/bf537-stamp/config.mk b/board/bf537-stamp/config.mk
index 1b87d53dd..d9e884e0e 100644
--- a/board/bf537-stamp/config.mk
+++ b/board/bf537-stamp/config.mk
@@ -1,4 +1,6 @@
 #
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
 # (C) Copyright 2001
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
@@ -25,5 +27,6 @@
 #TEXT_BASE = do-not-use-me
 
 # Set some default LDR flags based on boot mode.
-LDR_FLAGS-BFIN_BOOT_UART       := --port g --gpio 6
+LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
+LDR_FLAGS-BFIN_BOOT_UART := --port g --gpio 6
 LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/bf561-ezkit/config.mk b/board/bf561-ezkit/config.mk
index de80ffe7b..77c888b3b 100644
--- a/board/bf561-ezkit/config.mk
+++ b/board/bf561-ezkit/config.mk
@@ -1,4 +1,6 @@
 #
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
 # (C) Copyright 2001
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
@@ -23,3 +25,7 @@
 
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
+
+# Set some default LDR flags based on boot mode.
+LDR_FLAGS-BFIN_BOOT_PARA := --bits 16
+LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))

From b9eecc342f767b50e1476fbc1aad7d88dd4ce5eb Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Fri, 24 Oct 2008 17:48:54 -0400
Subject: [PATCH 2/5] Blackfin: fix linker scripts to work with --gc-sections

Make sure all .text sections get pulled in and the entry point is properly
referenced so they don't get discarded when linking with --gc-sections.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 board/bf533-ezkit/u-boot.lds.S | 23 +++++++++++++----------
 board/bf533-stamp/u-boot.lds.S | 19 +++++++++++--------
 board/bf537-stamp/u-boot.lds.S | 19 +++++++++++--------
 board/bf561-ezkit/u-boot.lds.S | 23 +++++++++++++----------
 4 files changed, 48 insertions(+), 36 deletions(-)

diff --git a/board/bf533-ezkit/u-boot.lds.S b/board/bf533-ezkit/u-boot.lds.S
index 70764acf1..da16726d8 100644
--- a/board/bf533-ezkit/u-boot.lds.S
+++ b/board/bf533-ezkit/u-boot.lds.S
@@ -28,6 +28,8 @@
 #include <config.h>
 #include <asm/blackfin.h>
 #undef ALIGN
+#undef ENTRY
+#undef bfin
 
 /* If we don't actually load anything into L1 data, this will avoid
  * a syntax error.  If we do actually load something into L1 data,
@@ -50,11 +52,12 @@ MEMORY
 	l1_data : ORIGIN = L1_DATA_B_SRAM,   LENGTH = L1_DATA_B_SRAM_SIZE
 }
 
+ENTRY(_start)
 SECTIONS
 {
 	.text :
 	{
-		cpu/blackfin/start.o (.text)
+		cpu/blackfin/start.o (.text .text.*)
 
 #ifdef ENV_IS_EMBEDDED
 		/* WARNING - the following is hand-optimized to fit within
@@ -63,20 +66,20 @@ SECTIONS
 		 * it linked after the configuration sector.
 		 */
 
-		cpu/blackfin/traps.o		(.text)
-		cpu/blackfin/interrupt.o	(.text)
-		cpu/blackfin/serial.o		(.text)
-		common/dlmalloc.o		(.text)
-		lib_generic/crc32.o		(.text)
-		lib_generic/zlib.o		(.text)
-		board/bf533-ezkit/bf533-ezkit.o		(.text)
+		cpu/blackfin/traps.o		(.text .text.*)
+		cpu/blackfin/interrupt.o	(.text .text.*)
+		cpu/blackfin/serial.o		(.text .text.*)
+		common/dlmalloc.o		(.text .text.*)
+		lib_generic/crc32.o		(.text .text.*)
+		lib_generic/zlib.o		(.text .text.*)
+		board/bf533-ezkit/bf533-ezkit.o		(.text .text.*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
-		common/env_embedded.o	(.text)
+		common/env_embedded.o	(.text .text.*)
 #endif
 
 		__initcode_start = .;
-		cpu/blackfin/initcode.o (.text)
+		cpu/blackfin/initcode.o (.text .text.*)
 		__initcode_end = .;
 
 		*(.text .text.*)
diff --git a/board/bf533-stamp/u-boot.lds.S b/board/bf533-stamp/u-boot.lds.S
index 187309f3f..76daa75c0 100644
--- a/board/bf533-stamp/u-boot.lds.S
+++ b/board/bf533-stamp/u-boot.lds.S
@@ -28,6 +28,8 @@
 #include <config.h>
 #include <asm/blackfin.h>
 #undef ALIGN
+#undef ENTRY
+#undef bfin
 
 /* If we don't actually load anything into L1 data, this will avoid
  * a syntax error.  If we do actually load something into L1 data,
@@ -50,11 +52,12 @@ MEMORY
 	l1_data : ORIGIN = L1_DATA_B_SRAM,   LENGTH = L1_DATA_B_SRAM_SIZE
 }
 
+ENTRY(_start)
 SECTIONS
 {
 	.text :
 	{
-		cpu/blackfin/start.o (.text)
+		cpu/blackfin/start.o (.text .text.*)
 
 #ifdef ENV_IS_EMBEDDED
 		/* WARNING - the following is hand-optimized to fit within
@@ -63,18 +66,18 @@ SECTIONS
 		 * it linked after the configuration sector.
 		 */
 
-		cpu/blackfin/traps.o		(.text)
-		cpu/blackfin/interrupt.o	(.text)
-		cpu/blackfin/serial.o		(.text)
-		common/dlmalloc.o		(.text)
-		lib_generic/crc32.o		(.text)
+		cpu/blackfin/traps.o		(.text .text.*)
+		cpu/blackfin/interrupt.o	(.text .text.*)
+		cpu/blackfin/serial.o		(.text .text.*)
+		common/dlmalloc.o		(.text .text.*)
+		lib_generic/crc32.o		(.text .text.*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
-		common/env_embedded.o	(.text)
+		common/env_embedded.o	(.text .text.*)
 #endif
 
 		__initcode_start = .;
-		cpu/blackfin/initcode.o (.text)
+		cpu/blackfin/initcode.o (.text .text.*)
 		__initcode_end = .;
 
 		*(.text .text.*)
diff --git a/board/bf537-stamp/u-boot.lds.S b/board/bf537-stamp/u-boot.lds.S
index 187309f3f..76daa75c0 100644
--- a/board/bf537-stamp/u-boot.lds.S
+++ b/board/bf537-stamp/u-boot.lds.S
@@ -28,6 +28,8 @@
 #include <config.h>
 #include <asm/blackfin.h>
 #undef ALIGN
+#undef ENTRY
+#undef bfin
 
 /* If we don't actually load anything into L1 data, this will avoid
  * a syntax error.  If we do actually load something into L1 data,
@@ -50,11 +52,12 @@ MEMORY
 	l1_data : ORIGIN = L1_DATA_B_SRAM,   LENGTH = L1_DATA_B_SRAM_SIZE
 }
 
+ENTRY(_start)
 SECTIONS
 {
 	.text :
 	{
-		cpu/blackfin/start.o (.text)
+		cpu/blackfin/start.o (.text .text.*)
 
 #ifdef ENV_IS_EMBEDDED
 		/* WARNING - the following is hand-optimized to fit within
@@ -63,18 +66,18 @@ SECTIONS
 		 * it linked after the configuration sector.
 		 */
 
-		cpu/blackfin/traps.o		(.text)
-		cpu/blackfin/interrupt.o	(.text)
-		cpu/blackfin/serial.o		(.text)
-		common/dlmalloc.o		(.text)
-		lib_generic/crc32.o		(.text)
+		cpu/blackfin/traps.o		(.text .text.*)
+		cpu/blackfin/interrupt.o	(.text .text.*)
+		cpu/blackfin/serial.o		(.text .text.*)
+		common/dlmalloc.o		(.text .text.*)
+		lib_generic/crc32.o		(.text .text.*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
-		common/env_embedded.o	(.text)
+		common/env_embedded.o	(.text .text.*)
 #endif
 
 		__initcode_start = .;
-		cpu/blackfin/initcode.o (.text)
+		cpu/blackfin/initcode.o (.text .text.*)
 		__initcode_end = .;
 
 		*(.text .text.*)
diff --git a/board/bf561-ezkit/u-boot.lds.S b/board/bf561-ezkit/u-boot.lds.S
index 99d6be634..3d0453e2f 100644
--- a/board/bf561-ezkit/u-boot.lds.S
+++ b/board/bf561-ezkit/u-boot.lds.S
@@ -28,6 +28,8 @@
 #include <config.h>
 #include <asm/blackfin.h>
 #undef ALIGN
+#undef ENTRY
+#undef bfin
 
 /* If we don't actually load anything into L1 data, this will avoid
  * a syntax error.  If we do actually load something into L1 data,
@@ -50,11 +52,12 @@ MEMORY
 	l1_data : ORIGIN = L1_DATA_B_SRAM,   LENGTH = L1_DATA_B_SRAM_SIZE
 }
 
+ENTRY(_start)
 SECTIONS
 {
 	.text :
 	{
-		cpu/blackfin/start.o (.text)
+		cpu/blackfin/start.o (.text .text.*)
 
 #ifdef ENV_IS_EMBEDDED
 		/* WARNING - the following is hand-optimized to fit within
@@ -63,20 +66,20 @@ SECTIONS
 		 * it linked after the configuration sector.
 		 */
 
-		cpu/blackfin/traps.o		(.text)
-		cpu/blackfin/interrupt.o	(.text)
-		cpu/blackfin/serial.o		(.text)
-		common/dlmalloc.o		(.text)
-		lib_generic/crc32.o		(.text)
-		lib_generic/zlib.o		(.text)
-		board/bf561-ezkit/bf561-ezkit.o		(.text)
+		cpu/blackfin/traps.o		(.text .text.*)
+		cpu/blackfin/interrupt.o	(.text .text.*)
+		cpu/blackfin/serial.o		(.text .text.*)
+		common/dlmalloc.o		(.text .text.*)
+		lib_generic/crc32.o		(.text .text.*)
+		lib_generic/zlib.o		(.text .text.*)
+		board/bf561-ezkit/bf561-ezkit.o		(.text .text.*)
 
 		. = DEFINED(env_offset) ? env_offset : .;
-		common/env_embedded.o	(.text)
+		common/env_embedded.o	(.text .text.*)
 #endif
 
 		__initcode_start = .;
-		cpu/blackfin/initcode.o (.text)
+		cpu/blackfin/initcode.o (.text .text.*)
 		__initcode_end = .;
 
 		*(.text .text.*)

From e7e684b10d73a303902208594c7c3e7e0d753282 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Fri, 24 Oct 2008 17:51:57 -0400
Subject: [PATCH 3/5] Blackfin: fix out-of-tree building with ldscripts

Many of the Blackfin board linker scripts are preprocessed, so make sure we
output the linker script into the build tree rather than the source tree.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 board/bf533-ezkit/Makefile  | 7 +++----
 board/bf533-ezkit/config.mk | 2 ++
 board/bf533-stamp/Makefile  | 7 +++----
 board/bf533-stamp/config.mk | 2 ++
 board/bf537-stamp/Makefile  | 7 +++----
 board/bf537-stamp/config.mk | 2 ++
 board/bf561-ezkit/Makefile  | 7 +++----
 board/bf561-ezkit/config.mk | 2 ++
 8 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/board/bf533-ezkit/Makefile b/board/bf533-ezkit/Makefile
index b2d7acffe..6a45b7cb2 100644
--- a/board/bf533-ezkit/Makefile
+++ b/board/bf533-ezkit/Makefile
@@ -35,12 +35,11 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS) u-boot.lds
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) $(obj)u-boot.lds
 	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
-u-boot.lds: u-boot.lds.S
-	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P -Ubfin $^ > $@.tmp
-	mv -f $@.tmp $@
+$(obj)u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/bf533-ezkit/config.mk b/board/bf533-ezkit/config.mk
index 984792476..c8b9fb8c1 100644
--- a/board/bf533-ezkit/config.mk
+++ b/board/bf533-ezkit/config.mk
@@ -26,6 +26,8 @@
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
 
+LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds
+
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
 LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/bf533-stamp/Makefile b/board/bf533-stamp/Makefile
index 21f6ad1b4..5ae022885 100644
--- a/board/bf533-stamp/Makefile
+++ b/board/bf533-stamp/Makefile
@@ -35,12 +35,11 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS) u-boot.lds
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) $(obj)u-boot.lds
 	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
-u-boot.lds: u-boot.lds.S
-	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P -Ubfin $^ > $@.tmp
-	mv -f $@.tmp $@
+$(obj)u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/bf533-stamp/config.mk b/board/bf533-stamp/config.mk
index 984792476..c8b9fb8c1 100644
--- a/board/bf533-stamp/config.mk
+++ b/board/bf533-stamp/config.mk
@@ -26,6 +26,8 @@
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
 
+LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds
+
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
 LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))
diff --git a/board/bf537-stamp/Makefile b/board/bf537-stamp/Makefile
index e5481bfc5..e5ef9af5c 100644
--- a/board/bf537-stamp/Makefile
+++ b/board/bf537-stamp/Makefile
@@ -35,12 +35,11 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS) u-boot.lds
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) $(obj)u-boot.lds
 	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
-u-boot.lds: u-boot.lds.S
-	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P -Ubfin $^ > $@.tmp
-	mv -f $@.tmp $@
+$(obj)u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/bf537-stamp/config.mk b/board/bf537-stamp/config.mk
index d9e884e0e..719b97e25 100644
--- a/board/bf537-stamp/config.mk
+++ b/board/bf537-stamp/config.mk
@@ -26,6 +26,8 @@
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
 
+LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds
+
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16 --dma 8
 LDR_FLAGS-BFIN_BOOT_UART := --port g --gpio 6
diff --git a/board/bf561-ezkit/Makefile b/board/bf561-ezkit/Makefile
index a1a4433fc..e7ee24356 100644
--- a/board/bf561-ezkit/Makefile
+++ b/board/bf561-ezkit/Makefile
@@ -35,12 +35,11 @@ SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))
 SOBJS	:= $(addprefix $(obj),$(SOBJS))
 
-$(LIB):	$(obj).depend $(OBJS) $(SOBJS) u-boot.lds
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) $(obj)u-boot.lds
 	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
 
-u-boot.lds: u-boot.lds.S
-	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P -Ubfin $^ > $@.tmp
-	mv -f $@.tmp $@
+$(obj)u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -D__ASSEMBLY__ -P $^ > $@
 
 clean:
 	rm -f $(SOBJS) $(OBJS)
diff --git a/board/bf561-ezkit/config.mk b/board/bf561-ezkit/config.mk
index 77c888b3b..710809a9e 100644
--- a/board/bf561-ezkit/config.mk
+++ b/board/bf561-ezkit/config.mk
@@ -26,6 +26,8 @@
 # This is not actually used for Blackfin boards so do not change it
 #TEXT_BASE = do-not-use-me
 
+LDSCRIPT = $(obj)board/$(BOARDDIR)/u-boot.lds
+
 # Set some default LDR flags based on boot mode.
 LDR_FLAGS-BFIN_BOOT_PARA := --bits 16
 LDR_FLAGS += $(LDR_FLAGS-$(CONFIG_BFIN_BOOT_MODE))

From 687f952e4119594ab913be11c90f7f018c2a7a79 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 11 Dec 2008 07:04:48 -0500
Subject: [PATCH 4/5] Blackfin: drop CONFIG_SPI handling in board init

The eeprom SPI init functions are duplicated as the common code already
executes these for us.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 lib_blackfin/board.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/lib_blackfin/board.c b/lib_blackfin/board.c
index fde4bbe0f..05e66e3c5 100644
--- a/lib_blackfin/board.c
+++ b/lib_blackfin/board.c
@@ -374,13 +374,6 @@ void board_init_r(gd_t * id, ulong dest_addr)
 	mem_malloc_init();
 	malloc_bin_reloc();
 
-#ifdef CONFIG_SPI
-# if ! defined(CONFIG_ENV_IS_IN_EEPROM)
-	spi_init_f();
-# endif
-	spi_init_r();
-#endif
-
 #ifdef CONFIG_CMD_NAND
 	puts("NAND:  ");
 	nand_init();		/* go init the NAND */

From 032a1c934ef4dc003281f57302b6e693062c1868 Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Mon, 5 Jan 2009 16:09:44 -0500
Subject: [PATCH 5/5] bf537-stamp/nand: fix board_nand_init prototype

The board_nand_init() function should return an int, not void.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 board/bf537-stamp/nand.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/board/bf537-stamp/nand.c b/board/bf537-stamp/nand.c
index c597f2db1..20a7d0ef4 100644
--- a/board/bf537-stamp/nand.c
+++ b/board/bf537-stamp/nand.c
@@ -87,7 +87,7 @@ int bfin_device_ready(struct mtd_info *mtd)
  * Members with a "?" were not set in the merged testing-NAND branch,
  * so they are not set here either.
  */
-void board_nand_init(struct nand_chip *nand)
+int board_nand_init(struct nand_chip *nand)
 {
 	*PORT(CONFIG_NAND_GPIO_PORT, _FER) &= ~BFIN_NAND_READY;
 	*PORT(CONFIG_NAND_GPIO_PORT, IO_DIR) &= ~BFIN_NAND_READY;
@@ -97,5 +97,7 @@ void board_nand_init(struct nand_chip *nand)
 	nand->ecc.mode = NAND_ECC_SOFT;
 	nand->dev_ready = bfin_device_ready;
 	nand->chip_delay = 30;
+
+	return 0;
 }
 #endif