diff --git a/MAINTAINERS b/MAINTAINERS
index 5f035e0f1c48e70fe968fa4c22b0a828b8319642..1e40af2c8c5e2d850cdbce33ee2c3ba0340b405e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1183,6 +1183,11 @@ Chong Huang <chuang@ucrobotics.com>
 
 	bf525-ucr2	BF525
 
+Dimitar Penev <dpn@switchfin.org>
+
+	BR4 Appliance	BF537
+	PR1 Appliance	BF537
+
 #########################################################################
 # NDS32 Systems:							#
 #									#
diff --git a/arch/blackfin/cpu/cache.S b/arch/blackfin/cpu/cache.S
index 6ed655a674f52c8c3297c9cbb7db21c02c3d3f9c..5ca9e91d3f12ed015ca2cd12a5ce87b34c9d2b3f 100644
--- a/arch/blackfin/cpu/cache.S
+++ b/arch/blackfin/cpu/cache.S
@@ -8,8 +8,8 @@
  * Licensed under the GPL-2 or later.
  */
 
-#include <asm/linkage.h>
 #include <config.h>
+#include <linux/linkage.h>
 #include <asm/blackfin.h>
 
 .text
diff --git a/arch/blackfin/include/asm/blackfin_local.h b/arch/blackfin/include/asm/blackfin_local.h
index 71207b697ac62e8bca3026a8f9aa66c3ea409a32..49d0c9ec3aabc2a2ccc480da356a37c000ae061d 100644
--- a/arch/blackfin/include/asm/blackfin_local.h
+++ b/arch/blackfin/include/asm/blackfin_local.h
@@ -48,7 +48,7 @@
 #define L1_CACHE_SHIFT 5
 #define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
 
-#include <asm/linkage.h>
+#include <linux/linkage.h>
 #include <asm/cache.h>
 
 #ifndef __ASSEMBLY__
diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
index 482e4b52b63cebf3904fe41d59166c6bf83e5d86..568885a2c2862bc12699207515650d5342ddb6fd 100644
--- a/arch/blackfin/include/asm/cache.h
+++ b/arch/blackfin/include/asm/cache.h
@@ -7,7 +7,7 @@
 #ifndef __ARCH_BLACKFIN_CACHE_H
 #define __ARCH_BLACKFIN_CACHE_H
 
-#include <asm/linkage.h>	/* for asmlinkage */
+#include <linux/linkage.h>	/* for asmlinkage */
 
 /*
  * Bytes per L1 cache line
diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
index 75244a0731d9b741aab9528e19d9fc9b32a8d5d3..69f08bc7efb526a85f3edeab3a184944d178cb72 100644
--- a/arch/blackfin/include/asm/io.h
+++ b/arch/blackfin/include/asm/io.h
@@ -134,9 +134,11 @@ static inline unsigned int readl(const volatile void __iomem *addr)
 #define inb(port)    readb(__io(port))
 #define inw(port)    readw(__io(port))
 #define inl(port)    readl(__io(port))
+#define in_le32(port) inl(port)
 #define outb(x, port) writeb(x, __io(port))
 #define outw(x, port) writew(x, __io(port))
 #define outl(x, port) writel(x, __io(port))
+#define out_le32(x, port) outl(x, port)
 
 #define inb_p(port)    inb(__io(port))
 #define inw_p(port)    inw(__io(port))
diff --git a/arch/blackfin/include/asm/linkage.h b/arch/blackfin/include/asm/linkage.h
index fbb497c7bdcf60031af1c861418289547ba92560..6d4493a6c529a14fc7a4e084662e51018d868151 100644
--- a/arch/blackfin/include/asm/linkage.h
+++ b/arch/blackfin/include/asm/linkage.h
@@ -22,53 +22,7 @@
  * MA 02110-1301 USA
  */
 
-#ifndef _LINUX_LINKAGE_H
-#define _LINUX_LINKAGE_H
-
-#include <linux/config.h>
-
-#ifdef __cplusplus
-#define CPP_ASMLINKAGE		extern "C"
-#else
-#define CPP_ASMLINKAGE
-#endif
-
-#define asmlinkage CPP_ASMLINKAGE
-
-#define SYMBOL_NAME_STR(X)	#X
-#define SYMBOL_NAME(X)		X
-#ifdef __STDC__
-#define SYMBOL_NAME_LABEL(X)	X##:
-#else
-#define SYMBOL_NAME_LABEL(X)	X:
-#endif
-
-#define __ALIGN .align		4
-#define __ALIGN_STR		".align 4"
-
-#ifdef __ASSEMBLY__
-
-#define ALIGN			__ALIGN
-#define ALIGN_STR		__ALIGN_STR
-
-#define LENTRY(name) \
-	ALIGN; \
-	SYMBOL_NAME_LABEL(name)
-
-#define ENTRY(name) \
-	.globl SYMBOL_NAME(name); \
-	LENTRY(name)
-#endif
-
-#ifndef END
-#define END(name) \
-	.size name, .-name
-#endif
-
-#ifndef ENDPROC
-#define ENDPROC(name) \
-	.type name, @function; \
-	END(name)
-#endif
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
 
 #endif
diff --git a/arch/blackfin/lib/__kgdb.S b/arch/blackfin/lib/__kgdb.S
index cba4179d3efbf350661c4033f7be4063506dee38..4ccde8f104e1118cfab413a0c5f6f5bb5a2ce205 100644
--- a/arch/blackfin/lib/__kgdb.S
+++ b/arch/blackfin/lib/__kgdb.S
@@ -1,5 +1,5 @@
 
-#include <asm/linkage.h>
+#include <linux/linkage.h>
 
 /* save stack context for non-local goto
  * int kgdb_setjmp(long *buf)
diff --git a/arch/blackfin/lib/outs.S b/arch/blackfin/lib/outs.S
index 253d4c3e417b47a2a92e503bec896b0d4a9d9457..39d5332615ab333b35a61c3c2f6c5e45d6d96959 100644
--- a/arch/blackfin/lib/outs.S
+++ b/arch/blackfin/lib/outs.S
@@ -8,7 +8,7 @@
  * Licensed under the GPL-2.
  */
 
-#include <asm/linkage.h>
+#include <linux/linkage.h>
 
 .align 2
 
diff --git a/board/bf537-stamp/bf537-stamp.c b/board/bf537-stamp/bf537-stamp.c
index ec888d44d9a4a80994fbaa0d843abb8d1c582b72..92dfffa8ca12a6be6a1c447d6b5ebee7027c9bce 100644
--- a/board/bf537-stamp/bf537-stamp.c
+++ b/board/bf537-stamp/bf537-stamp.c
@@ -43,13 +43,6 @@ int checkboard(void)
 	return 0;
 }
 
-void board_reset(void)
-{
-	/* workaround for weak pull ups on ssel */
-	if (CONFIG_BFIN_BOOT_MODE == BFIN_BOOT_SPI_MASTER)
-		bfin_reset_boot_spi_cs(GPIO_PF10);
-}
-
 #ifdef CONFIG_BFIN_MAC
 static void board_init_enetaddr(uchar *mac_addr)
 {
diff --git a/board/br4/Makefile b/board/br4/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..6ae998fcf885396a1787db6f87cbec545fd5438d
--- /dev/null
+++ b/board/br4/Makefile
@@ -0,0 +1,50 @@
+#
+# U-boot - Makefile
+#
+# Copyright (c) Switchfin Org. <dpn@switchfin.org>
+#
+# Copyright (c) 2005-2007 Analog Device Inc.
+#
+# (C) Copyright 2000-2006
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS-y	:= $(BOARD).o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS-y))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/br4/br4.c b/board/br4/br4.c
new file mode 100644
index 0000000000000000000000000000000000000000..bc034e38d4a09ca766ccbec7f6aa5a41a4cc72a5
--- /dev/null
+++ b/board/br4/br4.c
@@ -0,0 +1,30 @@
+/*
+ * U-boot - main board file
+ *
+ * Copyright (c) Switchfin Org. <dpn@switchfin.org>
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <net.h>
+#include <netdev.h>
+
+int checkboard(void)
+{
+	printf("Board: Switchvoice BR4 Appliance\n");
+	printf("       Support: http://www.switchvoice.com/\n");
+	return 0;
+}
+
+#ifdef CONFIG_BFIN_MAC
+int board_eth_init(bd_t *bis)
+{
+	return bfin_EMAC_initialize(bis);
+}
+#endif
diff --git a/board/br4/config.mk b/board/br4/config.mk
new file mode 100644
index 0000000000000000000000000000000000000000..fac20c538af4945f005989bdba5a29c9dbcf4f93
--- /dev/null
+++ b/board/br4/config.mk
@@ -0,0 +1,30 @@
+#
+# Copyright (c) Switchfin Org. <dpn@switchfin.org>
+#
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
+# (C) Copyright 2001
+# 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
+#
+
+CFLAGS_lib += -O2
+CFLAGS_lib/lzma += -O2
+CFLAGS_lib/zlib += -O2
diff --git a/board/pr1/Makefile b/board/pr1/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..6ae998fcf885396a1787db6f87cbec545fd5438d
--- /dev/null
+++ b/board/pr1/Makefile
@@ -0,0 +1,50 @@
+#
+# U-boot - Makefile
+#
+# Copyright (c) Switchfin Org. <dpn@switchfin.org>
+#
+# Copyright (c) 2005-2007 Analog Device Inc.
+#
+# (C) Copyright 2000-2006
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB	= $(obj)lib$(BOARD).o
+
+COBJS-y	:= $(BOARD).o
+
+SRCS	:= $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS-y))
+SOBJS	:= $(addprefix $(obj),$(SOBJS-y))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS)
+	$(call cmd_link_o_target, $(OBJS) $(SOBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/pr1/config.mk b/board/pr1/config.mk
new file mode 100644
index 0000000000000000000000000000000000000000..fac20c538af4945f005989bdba5a29c9dbcf4f93
--- /dev/null
+++ b/board/pr1/config.mk
@@ -0,0 +1,30 @@
+#
+# Copyright (c) Switchfin Org. <dpn@switchfin.org>
+#
+# Copyright (c) 2005-2008 Analog Device Inc.
+#
+# (C) Copyright 2001
+# 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
+#
+
+CFLAGS_lib += -O2
+CFLAGS_lib/lzma += -O2
+CFLAGS_lib/zlib += -O2
diff --git a/board/pr1/pr1.c b/board/pr1/pr1.c
new file mode 100644
index 0000000000000000000000000000000000000000..bb907f396678b85e571a7fc7fd646507840d3770
--- /dev/null
+++ b/board/pr1/pr1.c
@@ -0,0 +1,30 @@
+/*
+ * U-boot - main board file
+ *
+ * Copyright (c) Switchfin Org. <dpn@switchfin.org>
+ *
+ * Copyright (c) 2005-2008 Analog Devices Inc.
+ *
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <net.h>
+#include <netdev.h>
+
+int checkboard(void)
+{
+	printf("Board: Switchvoice PR1 Appliance\n");
+	printf("       Support: http://www.switchvoice.com/\n");
+	return 0;
+}
+
+#ifdef CONFIG_BFIN_MAC
+int board_eth_init(bd_t *bis)
+{
+	return bfin_EMAC_initialize(bis);
+}
+#endif
diff --git a/boards.cfg b/boards.cfg
index bf71a6650ec665118785526018ef74507df14420..05ce1ae06fa37caf1832f13f9d0c9069b12bff05 100644
--- a/boards.cfg
+++ b/boards.cfg
@@ -291,6 +291,7 @@ bf561-acvilon                blackfin    blackfin
 bf561-ezkit                  blackfin    blackfin
 blackstamp                   blackfin    blackfin
 blackvme                     blackfin    blackfin
+br4                          blackfin    blackfin
 cm-bf527                     blackfin    blackfin
 cm-bf533                     blackfin    blackfin
 cm-bf537e                    blackfin    blackfin
@@ -300,6 +301,7 @@ cm-bf561                     blackfin    blackfin
 dnp5370                      blackfin    blackfin
 ibf-dsp561                   blackfin    blackfin
 ip04                         blackfin    blackfin
+pr1                          blackfin    blackfin
 tcm-bf518                    blackfin    blackfin
 tcm-bf537                    blackfin    blackfin
 M52277EVB                    m68k        mcf5227x    m52277evb           freescale      -           M52277EVB:SYS_SPANSION_BOOT,SYS_TEXT_BASE=0x00000000
diff --git a/drivers/block/pata_bfin.c b/drivers/block/pata_bfin.c
index 847c03226a6d161556084c2de9fff9397da6e6bf..cce21fbc5409bc9b0f206c3bb2b72e0f282c52c9 100644
--- a/drivers/block/pata_bfin.c
+++ b/drivers/block/pata_bfin.c
@@ -884,7 +884,7 @@ static void bfin_ata_identify(struct ata_port *ap, int dev)
 		sata_dev_desc[ap->port_no].removable = 0;
 
 	sata_dev_desc[ap->port_no].lba = (u32) n_sectors;
-	debug("lba=0x%x\n", sata_dev_desc[ap->port_no].lba);
+	debug("lba=0x%lx\n", sata_dev_desc[ap->port_no].lba);
 
 #ifdef CONFIG_LBA48
 	if (iop->command_set_2 & 0x0400)
diff --git a/drivers/mtd/nand/bfin_nand.c b/drivers/mtd/nand/bfin_nand.c
index 3ee060f859fc9646d27a61e271a2bc08253a8541..c7ddbb21d8ed95edd8463cbe69349df3e0d03b1a 100644
--- a/drivers/mtd/nand/bfin_nand.c
+++ b/drivers/mtd/nand/bfin_nand.c
@@ -73,7 +73,7 @@ static void bfin_nfc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 	SSYNC();
 }
 
-int bfin_nfc_devready(struct mtd_info *mtd)
+static int bfin_nfc_devready(struct mtd_info *mtd)
 {
 	pr_stamp();
 	return (bfin_read_NFC_STAT() & NBUSY) ? 1 : 0;
diff --git a/include/configs/br4.h b/include/configs/br4.h
new file mode 100644
index 0000000000000000000000000000000000000000..ef3752dcd532eb7b05b6a030796285f4fd6ab317
--- /dev/null
+++ b/include/configs/br4.h
@@ -0,0 +1,157 @@
+/*
+ * U-boot - Configuration file for BR4 Appliance
+ *
+ * based on bf537-stamp.h
+ * Copyright (c) Switchfin Org. <dpn@switchfin.org>
+ */
+
+#ifndef __CONFIG_BR4_H__
+#define __CONFIG_BR4_H__
+
+#include <asm/config-pre.h>
+
+
+/*
+ * Processor Settings
+ */
+#define CONFIG_BFIN_CPU             bf537-0.3
+#define CONFIG_BFIN_BOOT_MODE       BFIN_BOOT_SPI_MASTER
+
+
+/*
+ * Clock Settings
+ *	CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
+ *	SCLK = (CLKIN * VCO_MULT) / SCLK_DIV
+ */
+/* CONFIG_CLKIN_HZ is any value in Hz					*/
+#define CONFIG_CLKIN_HZ			25000000
+/* CLKIN_HALF controls the DF bit in PLL_CTL      0 = CLKIN		*/
+/*                                                1 = CLKIN / 2		*/
+#define CONFIG_CLKIN_HALF		0
+/* PLL_BYPASS controls the BYPASS bit in PLL_CTL  0 = do not bypass	*/
+/*                                                1 = bypass PLL	*/
+#define CONFIG_PLL_BYPASS		0
+/* VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL		*/
+/* Values can range from 0-63 (where 0 means 64)			*/
+#define CONFIG_VCO_MULT			24
+/* CCLK_DIV controls the core clock divider				*/
+/* Values can be 1, 2, 4, or 8 ONLY					*/
+#define CONFIG_CCLK_DIV			1
+/* SCLK_DIV controls the system clock divider				*/
+/* Values can range from 1-15						*/
+#define CONFIG_SCLK_DIV			5
+
+
+/*
+ * Memory Settings
+ */
+#define CONFIG_MEM_ADD_WDTH	10
+#define CONFIG_MEM_SIZE		64
+
+#define CONFIG_EBIU_SDRRC_VAL	0x306
+#define CONFIG_EBIU_SDGCTL_VAL	0x8091998d
+
+#define CONFIG_EBIU_AMGCTL_VAL	0xFF
+#define CONFIG_EBIU_AMBCTL0_VAL	0x7BB07BB0
+#define CONFIG_EBIU_AMBCTL1_VAL	0xFFC27BB0
+
+#define CONFIG_SYS_MONITOR_LEN		(512 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(384 * 1024)
+
+
+/*
+ * Network Settings
+ */
+#ifndef __ADSPBF534__
+#define ADI_CMDS_NETWORK	1
+#define CONFIG_BFIN_MAC
+#define CONFIG_NETCONSOLE
+#endif
+#define CONFIG_HOSTNAME		br4
+#define CONFIG_TFTP_BLOCKSIZE	4404
+/* Uncomment next line to use fixed MAC address */
+/* #define CONFIG_ETHADDR	5c:38:1a:80:a7:00 */
+
+
+/*
+ * Flash Settings
+ */
+#define CONFIG_SYS_NO_FLASH	/* We have no parallel FLASH */
+
+
+/*
+ * SPI Settings
+ */
+#define CONFIG_BFIN_SPI
+#define CONFIG_ENV_SPI_MAX_HZ	30000000
+#define CONFIG_SF_DEFAULT_SPEED	30000000
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_STMICRO
+
+
+/*
+ * Env Storage Settings
+ */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET	0x10000
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_SECT_SIZE	0x10000
+#define CONFIG_ENV_IS_EMBEDDED_IN_LDR
+
+
+/*
+ * I2C Settings
+ */
+#define CONFIG_BFIN_TWI_I2C
+#define CONFIG_HARD_I2C
+
+
+/*
+ * NAND Settings
+ */
+#define CONFIG_NAND_PLAT
+#define CONFIG_SYS_NAND_BASE		0x20000000
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define BFIN_NAND_CLE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 2))
+#define BFIN_NAND_ALE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 1))
+#define BFIN_NAND_WRITE(addr, cmd) \
+	do { \
+		bfin_write8(addr, cmd); \
+		SSYNC(); \
+	} while (0)
+
+#define NAND_PLAT_WRITE_CMD(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_CLE(chip), cmd)
+#define NAND_PLAT_WRITE_ADR(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_ALE(chip), cmd)
+#define NAND_PLAT_GPIO_DEV_READY       GPIO_PF9
+
+/*
+ * Misc Settings
+ */
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_RTC_BFIN
+#define CONFIG_UART_CONSOLE	0
+#define CONFIG_SYS_PROMPT	"br4>"
+#define CONFIG_BOOTCOMMAND	"run nandboot"
+#define CONFIG_BOOTDELAY	2
+#define CONFIG_LOADADDR		0x2000000
+
+
+/*
+ * Pull in common ADI header for remaining command/environment setup
+ */
+#include <configs/bfin_adi_common.h>
+
+/*
+ * Overwrite some settings defined in bfin_adi_common.h
+ */
+#undef NAND_ENV_SETTINGS
+#define NAND_ENV_SETTINGS \
+	"nandargs=set bootargs " CONFIG_BOOTARGS "\0" \
+	"nandboot=" \
+		"nand read $(loadaddr) 0x0 0x900000;" \
+		"run nandargs;" \
+		"bootm" \
+		"\0"
+
+#endif
diff --git a/include/configs/pr1.h b/include/configs/pr1.h
new file mode 100644
index 0000000000000000000000000000000000000000..03d4269584ebe6a2139cf1580129cb5e5a891e26
--- /dev/null
+++ b/include/configs/pr1.h
@@ -0,0 +1,157 @@
+/*
+ * U-boot - Configuration file for PR1 Appliance
+ *
+ * based on bf537-stamp.h
+ * Copyright (c) Switchfin Org. <dpn@switchfin.org>
+ */
+
+#ifndef __CONFIG_PR1_H__
+#define __CONFIG_PR1_H__
+
+#include <asm/config-pre.h>
+
+
+/*
+ * Processor Settings
+ */
+#define CONFIG_BFIN_CPU             bf537-0.3
+#define CONFIG_BFIN_BOOT_MODE       BFIN_BOOT_SPI_MASTER
+
+
+/*
+ * Clock Settings
+ *	CCLK = (CLKIN * VCO_MULT) / CCLK_DIV
+ *	SCLK = (CLKIN * VCO_MULT) / SCLK_DIV
+ */
+/* CONFIG_CLKIN_HZ is any value in Hz					*/
+#define CONFIG_CLKIN_HZ			25000000
+/* CLKIN_HALF controls the DF bit in PLL_CTL      0 = CLKIN		*/
+/*                                                1 = CLKIN / 2		*/
+#define CONFIG_CLKIN_HALF		0
+/* PLL_BYPASS controls the BYPASS bit in PLL_CTL  0 = do not bypass	*/
+/*                                                1 = bypass PLL	*/
+#define CONFIG_PLL_BYPASS		0
+/* VCO_MULT controls the MSEL (multiplier) bits in PLL_CTL		*/
+/* Values can range from 0-63 (where 0 means 64)			*/
+#define CONFIG_VCO_MULT			24
+/* CCLK_DIV controls the core clock divider				*/
+/* Values can be 1, 2, 4, or 8 ONLY					*/
+#define CONFIG_CCLK_DIV			1
+/* SCLK_DIV controls the system clock divider				*/
+/* Values can range from 1-15						*/
+#define CONFIG_SCLK_DIV			5
+
+
+/*
+ * Memory Settings
+ */
+#define CONFIG_MEM_ADD_WDTH	11
+#define CONFIG_MEM_SIZE		128
+
+#define CONFIG_EBIU_SDRRC_VAL	0x306
+#define CONFIG_EBIU_SDGCTL_VAL	0x8091998d
+
+#define CONFIG_EBIU_AMGCTL_VAL	0xFF
+#define CONFIG_EBIU_AMBCTL0_VAL	0x7BB07BB0
+#define CONFIG_EBIU_AMBCTL1_VAL	0xFFC27BB0
+
+#define CONFIG_SYS_MONITOR_LEN		(512 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(384 * 1024)
+
+
+/*
+ * Network Settings
+ */
+#ifndef __ADSPBF534__
+#define ADI_CMDS_NETWORK	1
+#define CONFIG_BFIN_MAC
+#define CONFIG_NETCONSOLE
+#endif
+#define CONFIG_HOSTNAME		pr1
+#define CONFIG_TFTP_BLOCKSIZE	4404
+/* Uncomment next line to use fixed MAC address */
+/* #define CONFIG_ETHADDR	02:80:ad:20:31:e8 */
+
+
+/*
+ * Flash Settings
+ */
+#define CONFIG_SYS_NO_FLASH	/* We have no parallel FLASH */
+
+
+/*
+ * SPI Settings
+ */
+#define CONFIG_BFIN_SPI
+#define CONFIG_ENV_SPI_MAX_HZ	30000000
+#define CONFIG_SF_DEFAULT_SPEED	30000000
+#define CONFIG_SPI_FLASH
+#define CONFIG_SPI_FLASH_STMICRO
+
+
+/*
+ * Env Storage Settings
+ */
+#define CONFIG_ENV_IS_IN_SPI_FLASH
+#define CONFIG_ENV_OFFSET	0x10000
+#define CONFIG_ENV_SIZE		0x2000
+#define CONFIG_ENV_SECT_SIZE	0x10000
+#define CONFIG_ENV_IS_EMBEDDED_IN_LDR
+
+
+/*
+ * I2C Settings
+ */
+#define CONFIG_BFIN_TWI_I2C
+#define CONFIG_HARD_I2C
+
+
+/*
+ * NAND Settings
+ */
+#define CONFIG_NAND_PLAT
+#define CONFIG_SYS_NAND_BASE		0x20000000
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+
+#define BFIN_NAND_CLE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 2))
+#define BFIN_NAND_ALE(chip) ((unsigned long)(chip)->IO_ADDR_W | (1 << 1))
+#define BFIN_NAND_WRITE(addr, cmd) \
+	do { \
+		bfin_write8(addr, cmd); \
+		SSYNC(); \
+	} while (0)
+
+#define NAND_PLAT_WRITE_CMD(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_CLE(chip), cmd)
+#define NAND_PLAT_WRITE_ADR(chip, cmd) BFIN_NAND_WRITE(BFIN_NAND_ALE(chip), cmd)
+#define NAND_PLAT_GPIO_DEV_READY       GPIO_PF9
+
+/*
+ * Misc Settings
+ */
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_RTC_BFIN
+#define CONFIG_UART_CONSOLE	0
+#define CONFIG_SYS_PROMPT	"pr1>"
+#define CONFIG_BOOTCOMMAND	"run nandboot"
+#define CONFIG_BOOTDELAY	2
+#define CONFIG_LOADADDR		0x2000000
+
+
+/*
+ * Pull in common ADI header for remaining command/environment setup
+ */
+#include <configs/bfin_adi_common.h>
+
+/*
+ * Overwrite some settings defined in bfin_adi_common.h
+ */
+#undef NAND_ENV_SETTINGS
+#define NAND_ENV_SETTINGS \
+	"nandargs=set bootargs " CONFIG_BOOTARGS "\0" \
+	"nandboot=" \
+		"nand read $(loadaddr) 0x0 0x900000;" \
+		"run nandargs;" \
+		"bootm" \
+		"\0"
+
+#endif
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
new file mode 100644
index 0000000000000000000000000000000000000000..ed4cf6cbcd507a8f53b7ed9bc68b8e2f0e84de60
--- /dev/null
+++ b/include/linux/linkage.h
@@ -0,0 +1,76 @@
+/*
+ * U-boot - linkage.h
+ *
+ * Copyright (c) 2005-2007 Analog Devices Inc.
+ *
+ * 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
+ */
+
+#ifndef _LINUX_LINKAGE_H
+#define _LINUX_LINKAGE_H
+
+#include <asm/linkage.h>
+#include <linux/config.h>
+
+#ifdef __cplusplus
+#define CPP_ASMLINKAGE		extern "C"
+#else
+#define CPP_ASMLINKAGE
+#endif
+
+#define asmlinkage CPP_ASMLINKAGE
+
+#define SYMBOL_NAME_STR(X)	#X
+#define SYMBOL_NAME(X)		X
+#ifdef __STDC__
+#define SYMBOL_NAME_LABEL(X)	X##:
+#else
+#define SYMBOL_NAME_LABEL(X)	X:
+#endif
+
+#define __ALIGN .align		4
+#define __ALIGN_STR		".align 4"
+
+#ifdef __ASSEMBLY__
+
+#define ALIGN			__ALIGN
+#define ALIGN_STR		__ALIGN_STR
+
+#define LENTRY(name) \
+	ALIGN; \
+	SYMBOL_NAME_LABEL(name)
+
+#define ENTRY(name) \
+	.globl SYMBOL_NAME(name); \
+	LENTRY(name)
+
+#ifndef END
+#define END(name) \
+	.size name, .-name
+#endif
+
+#ifndef ENDPROC
+#define ENDPROC(name) \
+	.type name, @function; \
+	END(name)
+#endif
+
+#endif
+
+#endif
diff --git a/post/post.c b/post/post.c
index d62f10aa539eb0f3ce49b207aa0059f076892fc3..8705b12f03833405643d72d70e6ee4204627c1b8 100644
--- a/post/post.c
+++ b/post/post.c
@@ -495,7 +495,8 @@ void post_reloc(void)
  */
 unsigned long post_time_ms(unsigned long base)
 {
-#if defined(CONFIG_PPC) || defined(CONFIG_ARM) && !defined(CONFIG_KIRKWOOD)
+#if defined(CONFIG_PPC) || defined(CONFIG_BLACKFIN) || \
+    (defined(CONFIG_ARM) && !defined(CONFIG_KIRKWOOD))
 	return (unsigned long)lldiv(get_ticks(), get_tbclk() / CONFIG_SYS_HZ)
 		- base;
 #else