[Blackfin][PATCH] Add BF537 stamp board support

12 files changed, 3035 insertions, 0 deletions

diff --git a/board/bf537-stamp/Makefile b/board/bf537-stamp/Makefile
new file mode 100644
index 0000000..e488844
--- /dev/null
+++ b/board/bf537-stamp/Makefile
@@ -0,0 +1,58 @@
+#
+# U-boot - Makefile
+#
+# 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).a
+
+COBJS	:= $(BOARD).o flash.o ether_bf537.o post-memory.o stm_m25p64.o cmd_bf537led.o nand.o
+
+SRCS	:= $(SOBJS:.o=.S) $(COBJS:.o=.c)
+OBJS	:= $(addprefix $(obj),$(COBJS))
+SOBJS	:= $(addprefix $(obj),$(SOBJS))
+
+$(LIB):	$(obj).depend $(OBJS) $(SOBJS) u-boot.lds
+	$(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS)
+
+u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -P -Ubfin $^ > $@.tmp
+	mv -f $@.tmp $@
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+#########################################################################
diff --git a/board/bf537-stamp/bf537-stamp.c b/board/bf537-stamp/bf537-stamp.c
new file mode 100644
index 0000000..cc4e998
--- /dev/null
+++ b/board/bf537-stamp/bf537-stamp.c
@@ -0,0 +1,437 @@
+/*
+ * U-boot - BF537.c
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm/io.h>
+#include "ether_bf537.h"
+
+#define POST_WORD_ADDR 0xFF903FFC
+
+/*
+ * the bootldr command loads an address, checks to see if there
+ *   is a Boot stream that the on-chip BOOTROM can understand,
+ *   and loads it via the BOOTROM Callback. It is possible
+ *   to also add booting from SPI, or TWI, but this function does
+ *   not currently support that.
+ */
+int do_bootldr(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	ulong addr, entry;
+	ulong *data;
+
+	/* Get the address */
+	if (argc < 2) {
+		addr = load_addr;
+	} else {
+		addr = simple_strtoul(argv[1], NULL, 16);
+	}
+
+	/* Check if it is a LDR file */
+	data = (ulong *) addr;
+	if (*data == 0xFF800060 || *data == 0xFF800040 || *data == 0xFF800020) {
+		/* We want to boot from FLASH or SDRAM */
+		entry = _BOOTROM_BOOT_DXE_FLASH;
+		printf("## Booting ldr image at 0x%08lx ...\n", addr);
+		if (icache_status())
+			icache_disable();
+		if (dcache_status())
+			dcache_disable();
+
+	      __asm__("R7=%[a];\n" "P0=%[b];\n" "JUMP (P0);\n":
+	      :[a] "d"(addr),[b] "a"(entry)
+	      :"R7", "P0");
+
+	} else {
+		printf("## No ldr image at address 0x%08lx\n", addr);
+	}
+
+	return 0;
+}
+
+U_BOOT_CMD(bootldr, 2, 0, do_bootldr,
+	   "bootldr - boot ldr image from memory\n",
+	   "[addr]\n         - boot ldr image stored in memory\n");
+
+int checkboard(void)
+{
+#if (BFIN_CPU == ADSP_BF534)
+	printf("CPU:   ADSP BF534 Rev.: 0.%d\n", *pCHIPID >> 28);
+#elif (BFIN_CPU == ADSP_BF536)
+	printf("CPU:   ADSP BF536 Rev.: 0.%d\n", *pCHIPID >> 28);
+#else
+	printf("CPU:   ADSP BF537 Rev.: 0.%d\n", *pCHIPID >> 28);
+#endif
+	printf("Board: ADI BF537 stamp board\n");
+	printf("       Support: http://blackfin.uclinux.org/\n");
+	return 0;
+}
+
+#if defined(CONFIG_BFIN_IDE)
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+	*(addr) = val;
+	sync();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+	volatile unsigned char c;
+
+	c = *(addr);
+	sync();
+
+	return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+	int i;
+
+	for (i = 0; i < words; i++)
+		*(sect_buf + i) = *(addr);
+	sync();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+	int i;
+
+	for (i = 0; i < words; i++)
+		*(addr) = *(sect_buf + i);
+	sync();
+}
+#endif				/* CONFIG_BFIN_IDE */
+
+long int initdram(int board_type)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+#ifdef DEBUG
+	int brate;
+	char *tmp = getenv("baudrate");
+	brate = simple_strtoul(tmp, NULL, 16);
+	printf("Serial Port initialized with Baud rate = %x\n", brate);
+	printf("SDRAM attributes:\n");
+	printf("tRCD %d SCLK Cycles,tRP %d SCLK Cycles,tRAS %d SCLK Cycles"
+	       "tWR %d SCLK Cycles,CAS Latency %d SCLK cycles \n",
+	       3, 3, 6, 2, 3);
+	printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
+	printf("Bank size = %d MB\n", CFG_MAX_RAM_SIZE >> 20);
+#endif
+	gd->bd->bi_memstart = CFG_SDRAM_BASE;
+	gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
+	return CFG_MAX_RAM_SIZE;
+}
+
+#if defined(CONFIG_MISC_INIT_R)
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+#if (BFIN_BOOT_MODE == BF537_BYPASS_BOOT)
+	char nid[32];
+	unsigned char *pMACaddr = (unsigned char *)0x203F0000;
+	u8 SrcAddr[6] = { 0x02, 0x80, 0xAD, 0x20, 0x31, 0xB8 };
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+	/* The 0xFF check here is to make sure we don't use the address
+	 * in flash if it's simply been erased (aka all 0xFF values) */
+	if (getenv("ethaddr") == NULL && is_valid_ether_addr(pMACaddr)) {
+		sprintf(nid, "%02x:%02x:%02x:%02x:%02x:%02x",
+			pMACaddr[0], pMACaddr[1],
+			pMACaddr[2], pMACaddr[3], pMACaddr[4], pMACaddr[5]);
+		setenv("ethaddr", nid);
+	}
+	if (getenv("ethaddr")) {
+		SetupMacAddr(SrcAddr);
+	}
+#endif				/* CONFIG_COMMANDS & CFG_CMD_NET */
+#endif				/* BFIN_BOOT_MODE == BF537_BYPASS_BOOT */
+
+#if defined(CONFIG_BFIN_IDE)
+#if defined(CONFIG_BFIN_TRUE_IDE)
+	/* Enable ATASEL when in True IDE mode */
+	printf("Using CF True IDE Mode\n");
+	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
+	udelay(1000);
+#elif defined(CONFIG_BFIN_CF_IDE)
+	/* Disable ATASEL when we're in Common Memory Mode */
+	printf("Using CF Common Memory Mode\n");
+	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
+	udelay(1000);
+#elif defined(CONFIG_BFIN_HDD_IDE)
+	printf("Using HDD IDE Mode\n");
+#endif
+	ide_init();
+#endif				/* CONFIG_BFIN_IDE */
+	return 0;
+}
+#endif				/* CONFIG_MISC_INIT_R */
+
+#ifdef CONFIG_POST
+#if (BFIN_BOOT_MODE != BF537_BYPASS_BOOT)
+/* Using sw10-PF5 as the hotkey */
+int post_hotkeys_pressed(void)
+{
+	return 0;
+}
+#else
+/* Using sw10-PF5 as the hotkey */
+int post_hotkeys_pressed(void)
+{
+	int delay = 3;
+	int i;
+	unsigned short value;
+
+	*pPORTF_FER &= ~PF5;
+	*pPORTFIO_DIR &= ~PF5;
+	*pPORTFIO_INEN |= PF5;
+
+	printf("########Press SW10 to enter Memory POST########: %2d ", delay);
+	while (delay--) {
+		for (i = 0; i < 100; i++) {
+			value = *pPORTFIO & PF5;
+			if (value != 0) {
+				break;
+			}
+			udelay(10000);
+		}
+		printf("\b\b\b%2d ", delay);
+	}
+	printf("\b\b\b 0");
+	printf("\n");
+	if (value == 0)
+		return 0;
+	else {
+		printf("Hotkey has been pressed, Enter POST . . . . . .\n");
+		return 1;
+	}
+}
+#endif
+#endif
+
+#if defined(CONFIG_POST) || defined(CONFIG_LOGBUFFER)
+void post_word_store(ulong a)
+{
+	volatile ulong *save_addr = (volatile ulong *)POST_WORD_ADDR;
+	*save_addr = a;
+}
+
+ulong post_word_load(void)
+{
+	volatile ulong *save_addr = (volatile ulong *)POST_WORD_ADDR;
+	return *save_addr;
+}
+#endif
+
+#ifdef CONFIG_POST
+int uart_post_test(int flags)
+{
+	return 0;
+}
+
+#define BLOCK_SIZE 0x10000
+#define VERIFY_ADDR 0x2000000
+extern int erase_block_flash(int);
+extern int write_data(long lStart, long lCount, uchar * pnData);
+int flash_post_test(int flags)
+{
+	unsigned short *pbuf, *temp;
+	int offset, n, i;
+	int value = 0;
+	int result = 0;
+	printf("\n");
+	pbuf = (unsigned short *)VERIFY_ADDR;
+	temp = pbuf;
+	for (n = FLASH_START_POST_BLOCK; n < FLASH_END_POST_BLOCK; n++) {
+		offset = (n - 7) * BLOCK_SIZE;
+		printf("--------Erase   block:%2d..", n);
+		erase_block_flash(n);
+		printf("OK\r");
+		printf("--------Program block:%2d...", n);
+		write_data(CFG_FLASH_BASE + offset, BLOCK_SIZE, pbuf);
+		printf("OK\r");
+		printf("--------Verify  block:%2d...", n);
+		for (i = 0; i < BLOCK_SIZE; i += 2) {
+			if (*(unsigned short *)(CFG_FLASH_BASE + offset + i) !=
+			    *temp++) {
+				value = 1;
+				result = 1;
+			}
+		}
+		if (value)
+			printf("failed\n");
+		else
+			printf("OK		%3d%%\r",
+			       (int)(
+				     (n + 1 -
+				      FLASH_START_POST_BLOCK) *
+				     100 / (FLASH_END_POST_BLOCK -
+					    FLASH_START_POST_BLOCK)));
+
+		temp = pbuf;
+		value = 0;
+	}
+	printf("\n");
+	if (result)
+		return -1;
+	else
+		return 0;
+}
+
+/****************************************************
+ * LED1 ---- PF6	LED2 ---- PF7		    *
+ * LED3 ---- PF8	LED4 ---- PF9		    *
+ * LED5 ---- PF10	LED6 ---- PF11		    *
+ ****************************************************/
+int led_post_test(int flags)
+{
+	*pPORTF_FER &= ~(PF6 | PF7 | PF8 | PF9 | PF10 | PF11);
+	*pPORTFIO_DIR |= PF6 | PF7 | PF8 | PF9 | PF10 | PF11;
+	*pPORTFIO_INEN &= ~(PF6 | PF7 | PF8 | PF9 | PF10 | PF11);
+	*pPORTFIO &= ~(PF6 | PF7 | PF8 | PF9 | PF10 | PF11);
+	udelay(1000000);
+	printf("LED1 on");
+	*pPORTFIO |= PF6;
+	udelay(1000000);
+	printf("\b\b\b\b\b\b\b");
+	printf("LED2 on");
+	*pPORTFIO |= PF7;
+	udelay(1000000);
+	printf("\b\b\b\b\b\b\b");
+	printf("LED3 on");
+	*pPORTFIO |= PF8;
+	udelay(1000000);
+	printf("\b\b\b\b\b\b\b");
+	printf("LED4 on");
+	*pPORTFIO |= PF9;
+	udelay(1000000);
+	printf("\b\b\b\b\b\b\b");
+	printf("LED5 on");
+	*pPORTFIO |= PF10;
+	udelay(1000000);
+	printf("\b\b\b\b\b\b\b");
+	printf("lED6 on");
+	*pPORTFIO |= PF11;
+	printf("\b\b\b\b\b\b\b ");
+	return 0;
+}
+
+/************************************************
+ *  SW10 ---- PF5	SW11 ---- PF4		*
+ *  SW12 ---- PF3	SW13 ---- PF2		*
+ ************************************************/
+int button_post_test(int flags)
+{
+	int i, delay = 5;
+	unsigned short value = 0;
+	int result = 0;
+
+	*pPORTF_FER &= ~(PF5 | PF4 | PF3 | PF2);
+	*pPORTFIO_DIR &= ~(PF5 | PF4 | PF3 | PF2);
+	*pPORTFIO_INEN |= (PF5 | PF4 | PF3 | PF2);
+
+	printf("\n--------Press SW10: %2d ", delay);
+	while (delay--) {
+		for (i = 0; i < 100; i++) {
+			value = *pPORTFIO & PF5;
+			if (value != 0) {
+				break;
+			}
+			udelay(10000);
+		}
+		printf("\b\b\b%2d ", delay);
+	}
+	if (value != 0)
+		printf("\b\bOK");
+	else {
+		result = -1;
+		printf("\b\bfailed");
+	}
+
+	delay = 5;
+	printf("\n--------Press SW11: %2d ", delay);
+	while (delay--) {
+		for (i = 0; i < 100; i++) {
+			value = *pPORTFIO & PF4;
+			if (value != 0) {
+				break;
+			}
+			udelay(10000);
+		}
+		printf("\b\b\b%2d ", delay);
+	}
+	if (value != 0)
+		printf("\b\bOK");
+	else {
+		result = -1;
+		printf("\b\bfailed");
+	}
+
+	delay = 5;
+	printf("\n--------Press SW12: %2d ", delay);
+	while (delay--) {
+		for (i = 0; i < 100; i++) {
+			value = *pPORTFIO & PF3;
+			if (value != 0) {
+				break;
+			}
+			udelay(10000);
+		}
+		printf("\b\b\b%2d ", delay);
+	}
+	if (value != 0)
+		printf("\b\bOK");
+	else {
+		result = -1;
+		printf("\b\bfailed");
+	}
+
+	delay = 5;
+	printf("\n--------Press SW13: %2d ", delay);
+	while (delay--) {
+		for (i = 0; i < 100; i++) {
+			value = *pPORTFIO & PF2;
+			if (value != 0) {
+				break;
+			}
+			udelay(10000);
+		}
+		printf("\b\b\b%2d ", delay);
+	}
+	if (value != 0)
+		printf("\b\bOK");
+	else {
+		result = -1;
+		printf("\b\bfailed");
+	}
+	printf("\n");
+	return result;
+}
+#endif
diff --git a/board/bf537-stamp/cmd_bf537led.c b/board/bf537-stamp/cmd_bf537led.c
new file mode 100644
index 0000000..fa650f2
--- /dev/null
+++ b/board/bf537-stamp/cmd_bf537led.c
@@ -0,0 +1,201 @@
+/*
+ * U-boot - cmd_bf537led.c
+ *
+ * Copyright (C) 2006 Aaron Gage, Ocean Optics 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/blackfin.h>
+#include <asm-blackfin/string.h>
+#ifdef CONFIG_BF537_STAMP_LEDCMD
+
+/* Define the command usage in a reusable way */
+#define USAGE_LONG \
+	"led <number> <action>\n" \
+	"    <number>  - Index (0-5) of LED to change, or \"all\"\n" \
+	"    <action>  - Must be one of:\n" \
+	"		on off toggle\n"
+
+/* Number of LEDs supported by the board */
+#define NUMBER_LEDS     6
+/* The BF537 stamp has 6 LEDs.  This mask indicates that all should be lit. */
+#define LED_ALL_MASK    0x003F
+
+void show_cmd_usage(void);
+void set_led_state(int index, int state);
+void configure_GPIO_to_output(int index);
+
+/* Map of LEDs according to their GPIO ports.  This can be rearranged or
+ * otherwise changed to account for different GPIO configurations.
+ */
+int led_ports[] = { PF6, PF7, PF8, PF9, PF10, PF11 };
+
+#define ACTION_TOGGLE   -1
+#define ACTION_OFF      0
+#define ACTION_ON       1
+
+#define LED_STATE_OFF   0
+#define LED_STATE_ON    1
+
+/* This is a trivial atoi implementation since we don't have one available */
+int atoi(char *string)
+{
+	int length;
+	int retval = 0;
+	int i;
+	int sign = 1;
+
+	length = strlen(string);
+	for (i = 0; i < length; i++) {
+		if (0 == i && string[0] == '-') {
+			sign = -1;
+			continue;
+		}
+		if (string[i] > '9' || string[i] < '0') {
+			break;
+		}
+		retval *= 10;
+		retval += string[i] - '0';
+	}
+	retval *= sign;
+	return retval;
+}
+
+int do_bf537led(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	int led_mask = 0;
+	int led_current_state = 0;
+	int action = ACTION_OFF;
+	int temp;
+
+	if (3 != argc) {
+		/* Not enough arguments, so just show usage information */
+		show_cmd_usage();
+		return 1;
+	}
+
+	if (strcmp(argv[1], "all") == 0) {
+		led_mask = LED_ALL_MASK;
+	} else {
+		temp = atoi(argv[1]);
+		if (temp < 0 || temp >= NUMBER_LEDS) {
+			printf("Invalid LED number [%s]\n", argv[1]);
+			show_cmd_usage();
+			return 2;
+		}
+		led_mask |= (1 << temp);
+	}
+
+	if (strcmp(argv[2], "off") == 0) {
+		action = ACTION_OFF;
+	} else if (strcmp(argv[2], "on") == 0) {
+		action = ACTION_ON;
+	} else if (strcmp(argv[2], "toggle") == 0) {
+		action = ACTION_TOGGLE;
+	} else {
+		printf("Invalid action [%s]\n", argv[2]);
+		show_cmd_usage();
+		return 3;
+	}
+
+	for (temp = 0; temp < NUMBER_LEDS; temp++) {
+		if ((led_mask & (1 << temp)) > 0) {
+			/*
+			 * It is possible that the user has wired one of PF6-PF11 to
+			 * something other than an LED, so this will only change a pin
+			 * to output if the user has indicated a state change.  This may
+			 * happen a lot, but this way is safer than just setting all pins
+			 * to output.
+			 */
+			configure_GPIO_to_output(temp);
+
+			led_current_state =
+			    ((*pPORTFIO & led_ports[temp]) >
+			     0) ? LED_STATE_ON : LED_STATE_OFF;
+	/*
+		printf("LED state for index %d (%x) is %d\n", temp, led_ports[temp],
+			led_current_state);
+		printf("*pPORTFIO is %x\n", *pPORTFIO);
+	*/
+			if (ACTION_ON == action
+			    || (ACTION_TOGGLE == action
+				&& 0 == led_current_state)) {
+				printf("Turning LED %d on\n", temp);
+				set_led_state(temp, LED_STATE_ON);
+			} else {
+				printf("Turning LED %d off\n", temp);
+				set_led_state(temp, LED_STATE_OFF);
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * The GPIO pins that go to the LEDs on the BF537 stamp must be configured
+ * as output.  This function simply configures them that way.  This could
+ * be done to all of the GPIO lines at once, but if a user is using a
+ * custom board, this will try to be nice and only change the GPIO lines
+ * that the user specifically names.
+ */
+void configure_GPIO_to_output(int index)
+{
+	int port;
+
+	port = led_ports[index];
+
+	/* Clear the Port F Function Enable Register */
+	*pPORTF_FER &= ~port;
+	/* Set the Port F I/O direction register */
+	*pPORTFIO_DIR |= port;
+	/* Clear the Port F I/O Input Enable Register */
+	*pPORTFIO_INEN &= ~port;
+}
+
+/* Enforce the given state on the GPIO line for the indicated LED */
+void set_led_state(int index, int state)
+{
+	int port;
+
+	port = led_ports[index];
+
+	if (LED_STATE_OFF == state) {
+		/* Clear the bit to turn off the LED */
+		*pPORTFIO &= ~port;
+	} else {
+		/* Set the bit to turn on the LED */
+		*pPORTFIO |= port;
+	}
+}
+
+/* Display usage information */
+void show_cmd_usage()
+{
+	printf("Usage:\n%s", USAGE_LONG);
+}
+
+/* Register information for u-boot to find this command */
+U_BOOT_CMD(led, 3, 1, do_bf537led,
+	   "led- Control BF537 stamp LEDs\n", USAGE_LONG);
+
+#endif
diff --git a/board/bf537-stamp/config.mk b/board/bf537-stamp/config.mk
new file mode 100644
index 0000000..a623c3d
--- /dev/null
+++ b/board/bf537-stamp/config.mk
@@ -0,0 +1,25 @@
+#
+# (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
+#
+# TEXT_BASE should be defined as the MAX_SDRAM Address - 256k bytes
+#  256k is defined as CFG_MONITOR_LEN in ./include/configs/<board>.h
+TEXT_BASE = 0x03FC0000
diff --git a/board/bf537-stamp/ether_bf537.c b/board/bf537-stamp/ether_bf537.c
new file mode 100644
index 0000000..f00837a
--- /dev/null
+++ b/board/bf537-stamp/ether_bf537.c
@@ -0,0 +1,545 @@
+/*
+ * ADI Blackfin 537 MAC Ethernet
+ *
+ * Copyright (c) 2005 Analog Device, 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <config.h>
+#include <asm/blackfin.h>
+#include <net.h>
+#include <command.h>
+#include <malloc.h>
+#include "ether_bf537.h"
+
+#ifdef CONFIG_POST
+#include <post.h>
+#endif
+
+#undef DEBUG_ETHERNET
+
+#ifdef DEBUG_ETHERNET
+#define DEBUGF(fmt,args...) printf(fmt,##args)
+#else
+#define DEBUGF(fmt,args...)
+#endif
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+
+#define RXBUF_BASE_ADDR		0xFF900000
+#define TXBUF_BASE_ADDR		0xFF800000
+#define TX_BUF_CNT		1
+
+#define TOUT_LOOP 		1000000
+
+ADI_ETHER_BUFFER *txbuf[TX_BUF_CNT];
+ADI_ETHER_BUFFER *rxbuf[PKTBUFSRX];
+static u16 txIdx;		/* index of the current RX buffer */
+static u16 rxIdx;		/* index of the current TX buffer */
+
+u8 SrcAddr[6];
+u16 PHYregs[NO_PHY_REGS];	/* u16 PHYADDR; */
+
+/* DMAx_CONFIG values at DMA Restart */
+const ADI_DMA_CONFIG_REG rxdmacfg = { 1, 1, 2, 0, 0, 0, 0, 5, 7 };
+
+#if 0
+	rxdmacfg.b_DMA_EN = 1;	/* enabled */
+	rxdmacfg.b_WNR    = 1;	/* write to memory */
+	rxdmacfg.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	rxdmacfg.b_DMA2D  = 0;	/* N/A */
+	rxdmacfg.b_RESTART= 0;	/* N/A */
+	rxdmacfg.b_DI_SEL = 0;	/* N/A */
+	rxdmacfg.b_DI_EN  = 0;	/* no interrupt */
+	rxdmacfg.b_NDSIZE = 5;	/* 5 half words is desc size. */
+	rxdmacfg.b_FLOW   = 7;	/* large desc flow  */
+#endif
+
+const ADI_DMA_CONFIG_REG txdmacfg = { 1, 0, 2, 0, 0, 0, 0, 5, 7 };
+
+#if 0
+	txdmacfg.b_DMA_EN = 1;	/* enabled */
+	txdmacfg.b_WNR    = 0;	/* read from memory */
+	txdmacfg.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	txdmacfg.b_DMA2D  = 0;	/* N/A */
+	txdmacfg.b_RESTART= 0;	/* N/A */
+	txdmacfg.b_DI_SEL = 0;	/* N/A */
+	txdmacfg.b_DI_EN  = 0;	/* no interrupt */
+	txdmacfg.b_NDSIZE = 5;	/* 5 half words is desc size. */
+	txdmacfg.b_FLOW   = 7;	/* large desc flow */
+#endif
+
+ADI_ETHER_BUFFER *SetupRxBuffer(int no);
+ADI_ETHER_BUFFER *SetupTxBuffer(int no);
+
+static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd);
+static void bfin_EMAC_halt(struct eth_device *dev);
+static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
+			  int length);
+static int bfin_EMAC_recv(struct eth_device *dev);
+
+int bfin_EMAC_initialize(bd_t * bis)
+{
+	struct eth_device *dev;
+	dev = (struct eth_device *)malloc(sizeof(*dev));
+	if (dev == NULL)
+		hang();
+
+	memset(dev, 0, sizeof(*dev));
+	sprintf(dev->name, "BF537 ETHERNET");
+
+	dev->iobase = 0;
+	dev->priv = 0;
+	dev->init = bfin_EMAC_init;
+	dev->halt = bfin_EMAC_halt;
+	dev->send = bfin_EMAC_send;
+	dev->recv = bfin_EMAC_recv;
+
+	eth_register(dev);
+
+	return 1;
+}
+
+static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
+			  int length)
+{
+	int i;
+	int result = 0;
+	unsigned int *buf;
+	buf = (unsigned int *)packet;
+
+	if (length <= 0) {
+		printf("Ethernet: bad packet size: %d\n", length);
+		goto out;
+	}
+
+	if ((*pDMA2_IRQ_STATUS & DMA_ERR) != 0) {
+		printf("Ethernet: tx DMA error\n");
+		goto out;
+	}
+
+	for (i = 0; (*pDMA2_IRQ_STATUS & DMA_RUN) != 0; i++) {
+		if (i > TOUT_LOOP) {
+			puts("Ethernet: tx time out\n");
+			goto out;
+		}
+	}
+	txbuf[txIdx]->FrmData->NoBytes = length;
+	memcpy(txbuf[txIdx]->FrmData->Dest, (void *)packet, length);
+	txbuf[txIdx]->Dma[0].START_ADDR = (u32) txbuf[txIdx]->FrmData;
+	*pDMA2_NEXT_DESC_PTR = &txbuf[txIdx]->Dma[0];
+	*pDMA2_CONFIG = *(u16 *) (void *)(&txdmacfg);
+	*pEMAC_OPMODE |= TE;
+
+	for (i = 0; (txbuf[txIdx]->StatusWord & TX_COMP) == 0; i++) {
+		if (i > TOUT_LOOP) {
+			puts("Ethernet: tx error\n");
+			goto out;
+		}
+	}
+	result = txbuf[txIdx]->StatusWord;
+	txbuf[txIdx]->StatusWord = 0;
+	if ((txIdx + 1) >= TX_BUF_CNT)
+		txIdx = 0;
+	else
+		txIdx++;
+      out:
+	DEBUGF("BFIN EMAC send: length = %d\n", length);
+	return result;
+}
+
+static int bfin_EMAC_recv(struct eth_device *dev)
+{
+	int length = 0;
+
+	for (;;) {
+		if ((rxbuf[rxIdx]->StatusWord & RX_COMP) == 0) {
+			length = -1;
+			break;
+		}
+		if ((rxbuf[rxIdx]->StatusWord & RX_DMAO) != 0) {
+			printf("Ethernet: rx dma overrun\n");
+			break;
+		}
+		if ((rxbuf[rxIdx]->StatusWord & RX_OK) == 0) {
+			printf("Ethernet: rx error\n");
+			break;
+		}
+		length = rxbuf[rxIdx]->StatusWord & 0x000007FF;
+		if (length <= 4) {
+			printf("Ethernet: bad frame\n");
+			break;
+		}
+		NetRxPackets[rxIdx] =
+		    (volatile uchar *)(rxbuf[rxIdx]->FrmData->Dest);
+		NetReceive(NetRxPackets[rxIdx], length - 4);
+		*pDMA1_IRQ_STATUS |= DMA_DONE | DMA_ERR;
+		rxbuf[rxIdx]->StatusWord = 0x00000000;
+		if ((rxIdx + 1) >= PKTBUFSRX)
+			rxIdx = 0;
+		else
+			rxIdx++;
+	}
+
+	return length;
+}
+
+/**************************************************************
+ *
+ * Ethernet Initialization Routine
+ *
+ *************************************************************/
+
+static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd)
+{
+	u32 opmode;
+	int dat;
+	int i;
+	DEBUGF("Eth_init: ......\n");
+
+	txIdx = 0;
+	rxIdx = 0;
+
+/* Initialize System Register */
+	if (SetupSystemRegs(&dat) < 0)
+		return -1;
+
+/* Initialize EMAC address */
+	SetupMacAddr(SrcAddr);
+
+/* Initialize TX and RX buffer */
+	for (i = 0; i < PKTBUFSRX; i++) {
+		rxbuf[i] = SetupRxBuffer(i);
+		if (i > 0) {
+			rxbuf[i - 1]->Dma[1].NEXT_DESC_PTR =
+			    &(rxbuf[i]->Dma[0]);
+			if (i == (PKTBUFSRX - 1))
+				rxbuf[i]->Dma[1].NEXT_DESC_PTR =
+				    &(rxbuf[0]->Dma[0]);
+		}
+	}
+	for (i = 0; i < TX_BUF_CNT; i++) {
+		txbuf[i] = SetupTxBuffer(i);
+		if (i > 0) {
+			txbuf[i - 1]->Dma[1].NEXT_DESC_PTR =
+			    &(txbuf[i]->Dma[0]);
+			if (i == (TX_BUF_CNT - 1))
+				txbuf[i]->Dma[1].NEXT_DESC_PTR =
+				    &(txbuf[0]->Dma[0]);
+		}
+	}
+
+	/* Set RX DMA */
+	*pDMA1_NEXT_DESC_PTR = &rxbuf[0]->Dma[0];
+	*pDMA1_CONFIG = *((u16 *) (void *)&rxbuf[0]->Dma[0].CONFIG);
+
+	/* Wait MII done */
+	PollMdcDone();
+
+	/* We enable only RX here */
+	/* ASTP   : Enable Automatic Pad Stripping
+	   PR     : Promiscuous Mode for test
+	   PSF    : Receive frames with total length less than 64 bytes.
+	   FDMODE : Full Duplex Mode
+	   LB	  : Internal Loopback for test
+	   RE     : Receiver Enable */
+	if (dat == FDMODE)
+		opmode = ASTP | FDMODE | PSF;
+	else
+		opmode = ASTP | PSF;
+	opmode |= RE;
+#ifdef CONFIG_BFIN_MAC_RMII
+	opmode |= TE | RMII;
+#endif
+	/* Turn on the EMAC */
+	*pEMAC_OPMODE = opmode;
+	return 0;
+}
+
+static void bfin_EMAC_halt(struct eth_device *dev)
+{
+	DEBUGF("Eth_halt: ......\n");
+	/* Turn off the EMAC */
+	*pEMAC_OPMODE = 0x00000000;
+	/* Turn off the EMAC RX DMA */
+	*pDMA1_CONFIG = 0x0000;
+	*pDMA2_CONFIG = 0x0000;
+
+}
+
+void SetupMacAddr(u8 * MACaddr)
+{
+	char *tmp, *end;
+	int i;
+	/* this depends on a little-endian machine */
+	tmp = getenv("ethaddr");
+	if (tmp) {
+		for (i = 0; i < 6; i++) {
+			MACaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
+			if (tmp)
+				tmp = (*end) ? end + 1 : end;
+		}
+
+#ifndef CONFIG_NETCONSOLE
+		printf("Using MAC Address %02X:%02X:%02X:%02X:%02X:%02X\n",
+		       MACaddr[0], MACaddr[1],
+		       MACaddr[2], MACaddr[3], MACaddr[4], MACaddr[5]);
+#endif
+		*pEMAC_ADDRLO = MACaddr[0] | MACaddr[1] << 8 |
+		    MACaddr[2] << 16 | MACaddr[3] << 24;
+		*pEMAC_ADDRHI = MACaddr[4] | MACaddr[5] << 8;
+	}
+}
+
+void PollMdcDone(void)
+{
+	/* poll the STABUSY bit */
+	while (*pEMAC_STAADD & STABUSY) ;
+}
+
+void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data)
+{
+	PollMdcDone();
+
+	*pEMAC_STADAT = Data;
+
+	*pEMAC_STAADD = SET_PHYAD(PHYAddr) | SET_REGAD(RegAddr) |
+	    STAOP | STAIE | STABUSY;
+}
+
+/*********************************************************************************
+ *		Read an off-chip register in a PHY through the MDC/MDIO port     *
+ *********************************************************************************/
+u16 RdPHYReg(u16 PHYAddr, u16 RegAddr)
+{
+	u16 Data;
+
+	PollMdcDone();
+
+	*pEMAC_STAADD = SET_PHYAD(PHYAddr) | SET_REGAD(RegAddr) |
+	    STAIE | STABUSY;
+
+	PollMdcDone();
+
+	Data = (u16) * pEMAC_STADAT;
+
+	PHYregs[RegAddr] = Data;	/* save shadow copy */
+
+	return Data;
+}
+
+void SoftResetPHY(void)
+{
+	u16 phydat;
+	/* set the reset bit */
+	WrPHYReg(PHYADDR, PHY_MODECTL, PHY_RESET);
+	/* and clear it again */
+	WrPHYReg(PHYADDR, PHY_MODECTL, 0x0000);
+	do {
+		/* poll until reset is complete */
+		phydat = RdPHYReg(PHYADDR, PHY_MODECTL);
+	} while ((phydat & PHY_RESET) != 0);
+}
+
+int SetupSystemRegs(int *opmode)
+{
+	u16 sysctl, phydat;
+	int count = 0;
+	/* Enable PHY output */
+	*pVR_CTL |= PHYCLKOE;
+	/* MDC  = 2.5 MHz */
+	sysctl = SET_MDCDIV(24);
+	/* Odd word alignment for Receive Frame DMA word */
+	/* Configure checksum support and rcve frame word alignment */
+	sysctl |= RXDWA | RXCKS;
+	*pEMAC_SYSCTL = sysctl;
+	/* auto negotiation on  */
+	/* full duplex */
+	/* 100 Mbps */
+	phydat = PHY_ANEG_EN | PHY_DUPLEX | PHY_SPD_SET;
+	WrPHYReg(PHYADDR, PHY_MODECTL, phydat);
+	do {
+		udelay(1000);
+		phydat = RdPHYReg(PHYADDR, PHY_MODESTAT);
+		if (count > 3000) {
+			printf
+			    ("Link is down, please check your network connection\n");
+			return -1;
+		}
+		count++;
+	} while (!(phydat & 0x0004));
+
+	phydat = RdPHYReg(PHYADDR, PHY_ANLPAR);
+
+	if ((phydat & 0x0100) || (phydat & 0x0040))
+		*opmode = FDMODE;
+	else
+		*opmode = 0;
+
+	*pEMAC_MMC_CTL = RSTC | CROLL;
+
+	/* Initialize the TX DMA channel registers */
+	*pDMA2_X_COUNT = 0;
+	*pDMA2_X_MODIFY = 4;
+	*pDMA2_Y_COUNT = 0;
+	*pDMA2_Y_MODIFY = 0;
+
+	/* Initialize the RX DMA channel registers */
+	*pDMA1_X_COUNT = 0;
+	*pDMA1_X_MODIFY = 4;
+	*pDMA1_Y_COUNT = 0;
+	*pDMA1_Y_MODIFY = 0;
+	return 0;
+}
+
+ADI_ETHER_BUFFER *SetupRxBuffer(int no)
+{
+	ADI_ETHER_FRAME_BUFFER *frmbuf;
+	ADI_ETHER_BUFFER *buf;
+	int nobytes_buffer = sizeof(ADI_ETHER_BUFFER[2]) / 2;	/* ensure a multi. of 4 */
+	int total_size = nobytes_buffer + RECV_BUFSIZE;
+
+	buf = (ADI_ETHER_BUFFER *) (RXBUF_BASE_ADDR + no * total_size);
+	frmbuf =
+	    (ADI_ETHER_FRAME_BUFFER *) (RXBUF_BASE_ADDR + no * total_size +
+					nobytes_buffer);
+
+	memset(buf, 0x00, nobytes_buffer);
+	buf->FrmData = frmbuf;
+	memset(frmbuf, 0xfe, RECV_BUFSIZE);
+
+	/* set up first desc to point to receive frame buffer */
+	buf->Dma[0].NEXT_DESC_PTR = &(buf->Dma[1]);
+	buf->Dma[0].START_ADDR = (u32) buf->FrmData;
+	buf->Dma[0].CONFIG.b_DMA_EN = 1;	/* enabled */
+	buf->Dma[0].CONFIG.b_WNR = 1;	/* Write to memory */
+	buf->Dma[0].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	buf->Dma[0].CONFIG.b_NDSIZE = 5;	/* 5 half words is desc size. */
+	buf->Dma[0].CONFIG.b_FLOW = 7;	/* large desc flow */
+
+	/* set up second desc to point to status word */
+	buf->Dma[1].NEXT_DESC_PTR = &(buf->Dma[0]);
+	buf->Dma[1].START_ADDR = (u32) & buf->IPHdrChksum;
+	buf->Dma[1].CONFIG.b_DMA_EN = 1;	/* enabled */
+	buf->Dma[1].CONFIG.b_WNR = 1;	/* Write to memory */
+	buf->Dma[1].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	buf->Dma[1].CONFIG.b_DI_EN = 1;	/* enable interrupt */
+	buf->Dma[1].CONFIG.b_NDSIZE = 5;	/* must be 0 when FLOW is 0 */
+	buf->Dma[1].CONFIG.b_FLOW = 7;	/* stop */
+
+	return buf;
+}
+
+ADI_ETHER_BUFFER *SetupTxBuffer(int no)
+{
+	ADI_ETHER_FRAME_BUFFER *frmbuf;
+	ADI_ETHER_BUFFER *buf;
+	int nobytes_buffer = sizeof(ADI_ETHER_BUFFER[2]) / 2;	/* ensure a multi. of 4 */
+	int total_size = nobytes_buffer + RECV_BUFSIZE;
+
+	buf = (ADI_ETHER_BUFFER *) (TXBUF_BASE_ADDR + no * total_size);
+	frmbuf =
+	    (ADI_ETHER_FRAME_BUFFER *) (TXBUF_BASE_ADDR + no * total_size +
+					nobytes_buffer);
+
+	memset(buf, 0x00, nobytes_buffer);
+	buf->FrmData = frmbuf;
+	memset(frmbuf, 0x00, RECV_BUFSIZE);
+
+	/* set up first desc to point to receive frame buffer */
+	buf->Dma[0].NEXT_DESC_PTR = &(buf->Dma[1]);
+	buf->Dma[0].START_ADDR = (u32) buf->FrmData;
+	buf->Dma[0].CONFIG.b_DMA_EN = 1;	/* enabled */
+	buf->Dma[0].CONFIG.b_WNR = 0;	/* Read to memory */
+	buf->Dma[0].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	buf->Dma[0].CONFIG.b_NDSIZE = 5;	/* 5 half words is desc size. */
+	buf->Dma[0].CONFIG.b_FLOW = 7;	/* large desc flow */
+
+	/* set up second desc to point to status word */
+	buf->Dma[1].NEXT_DESC_PTR = &(buf->Dma[0]);
+	buf->Dma[1].START_ADDR = (u32) & buf->StatusWord;
+	buf->Dma[1].CONFIG.b_DMA_EN = 1;	/* enabled */
+	buf->Dma[1].CONFIG.b_WNR = 1;	/* Write to memory */
+	buf->Dma[1].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
+	buf->Dma[1].CONFIG.b_DI_EN = 1;	/* enable interrupt */
+	buf->Dma[1].CONFIG.b_NDSIZE = 0;	/* must be 0 when FLOW is 0 */
+	buf->Dma[1].CONFIG.b_FLOW = 0;	/* stop */
+
+	return buf;
+}
+
+#if defined(CONFIG_POST) && defined(CFG_POST_ETHER)
+int ether_post_test(int flags)
+{
+	uchar buf[64];
+	int i, value = 0;
+	int length;
+
+	printf("\n--------");
+	bfin_EMAC_init(NULL, NULL);
+	/* construct the package */
+	buf[0] = buf[6] = (unsigned char)(*pEMAC_ADDRLO & 0xFF);
+	buf[1] = buf[7] = (unsigned char)((*pEMAC_ADDRLO & 0xFF00) >> 8);
+	buf[2] = buf[8] = (unsigned char)((*pEMAC_ADDRLO & 0xFF0000) >> 16);
+	buf[3] = buf[9] = (unsigned char)((*pEMAC_ADDRLO & 0xFF000000) >> 24);
+	buf[4] = buf[10] = (unsigned char)(*pEMAC_ADDRHI & 0xFF);
+	buf[5] = buf[11] = (unsigned char)((*pEMAC_ADDRHI & 0xFF00) >> 8);
+	buf[12] = 0x08;		/* Type: ARP */
+	buf[13] = 0x06;
+	buf[14] = 0x00;		/* Hardware type: Ethernet */
+	buf[15] = 0x01;
+	buf[16] = 0x08;		/* Protocal type: IP */
+	buf[17] = 0x00;
+	buf[18] = 0x06;		/* Hardware size    */
+	buf[19] = 0x04;		/* Protocol size    */
+	buf[20] = 0x00;		/* Opcode: request  */
+	buf[21] = 0x01;
+
+	for (i = 0; i < 42; i++)
+		buf[i + 22] = i;
+	printf("--------Send 64 bytes......\n");
+	bfin_EMAC_send(NULL, (volatile void *)buf, 64);
+	for (i = 0; i < 100; i++) {
+		udelay(10000);
+		if ((rxbuf[rxIdx]->StatusWord & RX_COMP) != 0) {
+			value = 1;
+			break;
+		}
+	}
+	if (value == 0) {
+		printf("--------EMAC can't receive any data\n");
+		eth_halt();
+		return -1;
+	}
+	length = rxbuf[rxIdx]->StatusWord & 0x000007FF - 4;
+	for (i = 0; i < length; i++) {
+		if (rxbuf[rxIdx]->FrmData->Dest[i] != buf[i]) {
+			printf("--------EMAC receive error data!\n");
+			eth_halt();
+			return -1;
+		}
+	}
+	printf("--------receive %d bytes, matched\n", length);
+	bfin_EMAC_halt(NULL);
+	return 0;
+}
+#endif
+#endif				/* CFG_CMD_NET */
diff --git a/board/bf537-stamp/ether_bf537.h b/board/bf537-stamp/ether_bf537.h
new file mode 100644
index 0000000..64240ba
--- /dev/null
+++ b/board/bf537-stamp/ether_bf537.h
@@ -0,0 +1,110 @@
+#define PHYADDR			0x01
+#define NO_PHY_REGS		0x20
+
+#define DEFAULT_PHY_PHYID1	0x0007
+#define DEFAULT_PHY_PHYID2	0xC0A3
+#define PHY_MODECTL		0x00
+#define PHY_MODESTAT		0x01
+#define PHY_PHYID1		0x02
+#define PHY_PHYID2		0x03
+#define PHY_ANAR		0x04
+#define PHY_ANLPAR		0x05
+#define PHY_ANER		0x06
+
+#define PHY_RESET		0x8000
+#define PHY_ANEG_EN		0x1000
+#define PHY_DUPLEX		0x0100
+#define PHY_SPD_SET		0x2000
+
+#define RECV_BUFSIZE		(0x614)
+
+typedef volatile u32 reg32;
+typedef volatile u16 reg16;
+
+typedef struct ADI_DMA_CONFIG_REG {
+	u16 b_DMA_EN:1;		/* 0	Enabled				*/
+	u16 b_WNR:1;		/* 1	Direction			*/
+	u16 b_WDSIZE:2;		/* 2:3	Transfer word size		*/
+	u16 b_DMA2D:1;		/* 4	DMA mode			*/
+	u16 b_RESTART:1;	/* 5	Retain FIFO			*/
+	u16 b_DI_SEL:1;		/* 6	Data interrupt timing select	*/
+	u16 b_DI_EN:1;		/* 7	Data interrupt enabled		*/
+	u16 b_NDSIZE:4;		/* 8:11	Flex descriptor size		*/
+	u16 b_FLOW:3;		/* 12:14Flow				*/
+} ADI_DMA_CONFIG_REG;
+
+typedef struct adi_ether_frame_buffer {
+	u16 NoBytes;		/* the no. of following bytes	*/
+	u8 Dest[6];		/* destination MAC address	*/
+	u8 Srce[6];		/* source MAC address		*/
+	u16 LTfield;		/* length/type field		*/
+	u8 Data[0];		/* payload bytes		*/
+} ADI_ETHER_FRAME_BUFFER;
+/* 16 bytes/struct	*/
+
+typedef struct dma_descriptor {
+	struct dma_descriptor *NEXT_DESC_PTR;
+	u32 START_ADDR;
+	ADI_DMA_CONFIG_REG CONFIG;
+} DMA_DESCRIPTOR;
+/* 10 bytes/struct in 12 bytes */
+
+typedef struct adi_ether_buffer {
+	DMA_DESCRIPTOR Dma[2];		/* first for the frame, second for the status */
+	ADI_ETHER_FRAME_BUFFER *FrmData;/* pointer to data */
+	struct adi_ether_buffer *pNext;	/* next buffer */
+	struct adi_ether_buffer *pPrev;	/* prev buffer */
+	u16 IPHdrChksum;		/* the IP header checksum */
+	u16 IPPayloadChksum;		/* the IP header and payload checksum */
+	volatile u32 StatusWord;	/* the frame status word */
+} ADI_ETHER_BUFFER;
+/* 40 bytes/struct in 44 bytes */
+
+void SetupMacAddr(u8 * MACaddr);
+
+void PollMdcDone(void);
+void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
+u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
+void SoftResetPHY(void);
+void DumpPHYRegs(void);
+
+int SetupSystemRegs(int *opmode);
+
+/**
+ * is_zero_ether_addr - Determine if give Ethernet address is all zeros.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is all zeroes.
+ */
+static inline int is_zero_ether_addr(const u8 * addr)
+{
+	return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+
+/**
+ * is_multicast_ether_addr - Determine if the Ethernet address is a multicast.
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Return true if the address is a multicast address.
+ * By definition the broadcast address is also a multicast address.
+ */
+static inline int is_multicast_ether_addr(const u8 * addr)
+{
+	return (0x01 & addr[0]);
+}
+
+/**
+ * is_valid_ether_addr - Determine if the given Ethernet address is valid
+ * @addr: Pointer to a six-byte array containing the Ethernet address
+ *
+ * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not
+ * a multicast address, and is not FF:FF:FF:FF:FF:FF.
+ *
+ * Return true if the address is valid.
+ */
+static inline int is_valid_ether_addr(const u8 * addr)
+{
+	/* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to
+	 * explicitly check for it here. */
+	return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr);
+}
diff --git a/board/bf537-stamp/flash-defines.h b/board/bf537-stamp/flash-defines.h
new file mode 100644
index 0000000..f19e171
--- /dev/null
+++ b/board/bf537-stamp/flash-defines.h
@@ -0,0 +1,123 @@
+/*
+ * U-boot - flash-defines.h
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ *
+ * (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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __FLASHDEFINES_H__
+#define __FLASHDEFINES_H__
+
+#include <common.h>
+
+#define V_ULONG(a)		(*(volatile unsigned long *)( a ))
+#define V_BYTE(a)		(*(volatile unsigned char *)( a ))
+#define TRUE			0x1
+#define FALSE			0x0
+#define BUFFER_SIZE		0x80000
+#define NO_COMMAND		0
+#define GET_CODES		1
+#define RESET			2
+#define WRITE			3
+#define FILL			4
+#define ERASE_ALL		5
+#define ERASE_SECT		6
+#define READ			7
+#define GET_SECTNUM		8
+#define FLASH_START_L 		0x0000
+#define FLASH_START_H 		0x2000
+#define FLASH_MAN_ST 		2
+#define RESET_VAL		0xF0
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+int get_codes(void);
+int poll_toggle_bit(long lOffset);
+void reset_flash(void);
+int erase_flash(void);
+int erase_block_flash(int);
+void unlock_flash(long lOffset);
+int write_data(long lStart, long lCount, uchar * pnData);
+int read_flash(long nOffset, int *pnValue);
+int write_flash(long nOffset, int nValue);
+void get_sector_number(long lOffset, int *pnSector);
+int GetSectorProtectionStatus(flash_info_t * info, int nSector);
+int GetOffset(int nBlock);
+int AFP_NumSectors = 71;
+long AFP_SectorSize2 = 0x10000;
+int AFP_SectorSize1 = 0x2000;
+
+#define NUM_SECTORS		71
+
+#define WRITESEQ1		0x0AAA
+#define WRITESEQ2		0x0554
+#define WRITESEQ3		0x0AAA
+#define WRITESEQ4		0x0AAA
+#define WRITESEQ5		0x0554
+#define WRITESEQ6		0x0AAA
+#define WRITEDATA1		0xaa
+#define WRITEDATA2		0x55
+#define WRITEDATA3		0x80
+#define WRITEDATA4		0xaa
+#define WRITEDATA5		0x55
+#define WRITEDATA6		0x10
+#define PriFlashABegin		0
+#define SecFlashABegin		8
+#define SecFlashBBegin		36
+#define PriFlashAOff		0x0
+#define PriFlashBOff		0x100000
+#define SecFlashAOff		0x10000
+#define SecFlashBOff		0x280000
+#define INVALIDLOCNSTART	0x20270000
+#define INVALIDLOCNEND		0x20280000
+#define BlockEraseVal		0x30
+#define UNLOCKDATA1		0xaa
+#define UNLOCKDATA2		0x55
+#define UNLOCKDATA3		0xa0
+#define GETCODEDATA1		0xaa
+#define GETCODEDATA2		0x55
+#define GETCODEDATA3		0x90
+#define SecFlashASec1Off	0x200000
+#define SecFlashASec2Off	0x204000
+#define SecFlashASec3Off	0x206000
+#define SecFlashASec4Off	0x208000
+#define SecFlashAEndOff		0x210000
+#define SecFlashBSec1Off	0x280000
+#define SecFlashBSec2Off	0x284000
+#define SecFlashBSec3Off	0x286000
+#define SecFlashBSec4Off	0x288000
+#define SecFlashBEndOff		0x290000
+
+#define SECT32			32
+#define SECT33			33
+#define SECT34			34
+#define SECT35			35
+#define SECT36			36
+#define SECT37			37
+#define SECT38			38
+#define SECT39			39
+
+#define FLASH_SUCCESS	0
+#define FLASH_FAIL	-1
+
+#endif
diff --git a/board/bf537-stamp/flash.c b/board/bf537-stamp/flash.c
new file mode 100644
index 0000000..172d3be
--- /dev/null
+++ b/board/bf537-stamp/flash.c
@@ -0,0 +1,403 @@
+/*
+ * U-boot - flash.c Flash driver for PSD4256GV
+ *
+ * Copyright (c) 2005 blackfin.uclinux.org
+ * This file is based on BF533EzFlash.c originally written by 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <malloc.h>
+#include <config.h>
+#include <asm/io.h>
+#include "flash-defines.h"
+
+void flash_reset(void)
+{
+	reset_flash();
+}
+
+unsigned long flash_get_size(ulong baseaddr, flash_info_t * info, int bank_flag)
+{
+	int id = 0, i = 0;
+	static int FlagDev = 1;
+
+	id = get_codes();
+	if (FlagDev) {
+		FlagDev = 0;
+	}
+	info->flash_id = id;
+	switch (bank_flag) {
+	case 0:
+		for (i = PriFlashABegin; i < SecFlashABegin; i++)
+			info->start[i] = (baseaddr + (i * AFP_SectorSize1));
+		for (i = SecFlashABegin; i < NUM_SECTORS; i++)
+			info->start[i] =
+			    (baseaddr + SecFlashAOff +
+			     ((i - SecFlashABegin) * AFP_SectorSize2));
+		info->size = 0x400000;
+		info->sector_count = NUM_SECTORS;
+		break;
+	case 1:
+		info->start[0] = baseaddr + SecFlashASec1Off;
+		info->start[1] = baseaddr + SecFlashASec2Off;
+		info->start[2] = baseaddr + SecFlashASec3Off;
+		info->start[3] = baseaddr + SecFlashASec4Off;
+		info->size = 0x10000;
+		info->sector_count = 4;
+		break;
+	case 2:
+		info->start[0] = baseaddr + SecFlashBSec1Off;
+		info->start[1] = baseaddr + SecFlashBSec2Off;
+		info->start[2] = baseaddr + SecFlashBSec3Off;
+		info->start[3] = baseaddr + SecFlashBSec4Off;
+		info->size = 0x10000;
+		info->sector_count = 4;
+		break;
+	}
+	return (info->size);
+}
+
+unsigned long flash_init(void)
+{
+	unsigned long size_b;
+	int i;
+
+	size_b = 0;
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; ++i) {
+		flash_info[i].flash_id = FLASH_UNKNOWN;
+	}
+
+	size_b = flash_get_size(CFG_FLASH_BASE, &flash_info[0], 0);
+
+	if (flash_info[0].flash_id == FLASH_UNKNOWN || size_b == 0) {
+		printf("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
+		       size_b, size_b >> 20);
+	}
+
+	/* flash_protect (int flag, ulong from, ulong to, flash_info_t *info) */
+	(void)flash_protect(FLAG_PROTECT_SET, CFG_FLASH_BASE,
+			    (flash_info[0].start[2] - 1), &flash_info[0]);
+#if (BFIN_BOOT_MODE == BF537_BYPASS_BOOT)
+	(void)flash_protect(FLAG_PROTECT_SET, 0x203F0000, 0x203FFFFF,
+			    &flash_info[0]);
+#endif
+
+	return (size_b);
+}
+
+void flash_print_info(flash_info_t * info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id) {
+	case (STM_ID_29W320EB & 0xFFFF):
+	case (STM_ID_29W320DB & 0xFFFF):
+		printf("ST Microelectronics ");
+		break;
+	default:
+		printf("Unknown Vendor: (0x%08X) ", info->flash_id);
+		break;
+	}
+	for (i = 0; i < info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf("\n   ");
+		printf(" %08lX%s",
+		       info->start[i], info->protect[i] ? " (RO)" : "     ");
+	}
+	printf("\n");
+	return;
+}
+
+int flash_erase(flash_info_t * info, int s_first, int s_last)
+{
+	int cnt = 0, i;
+	int prot, sect;
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect])
+			prot++;
+	}
+	if (prot)
+		printf("- Warning: %d protected sectors will not be erased!\n",
+		       prot);
+	else
+		printf("\n");
+
+	cnt = s_last - s_first + 1;
+
+#if (BFIN_BOOT_MODE == BF537_BYPASS_BOOT)
+	printf("Erasing Flash locations, Please Wait\n");
+	for (i = s_first; i <= s_last; i++) {
+		if (info->protect[i] == 0) {	/* not protected */
+			if (erase_block_flash(i) < 0) {
+				printf("Error Sector erasing \n");
+				return FLASH_FAIL;
+			}
+		}
+	}
+#elif (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT)
+	if (cnt == FLASH_TOT_SECT) {
+		printf("Erasing flash, Please Wait \n");
+		if (erase_flash() < 0) {
+			printf("Erasing flash failed \n");
+			return FLASH_FAIL;
+		}
+	} else {
+		printf("Erasing Flash locations, Please Wait\n");
+		for (i = s_first; i <= s_last; i++) {
+			if (info->protect[i] == 0) {	/* not protected */
+				if (erase_block_flash(i) < 0) {
+					printf("Error Sector erasing \n");
+					return FLASH_FAIL;
+				}
+			}
+		}
+	}
+#endif
+	printf("\n");
+	return FLASH_SUCCESS;
+}
+
+int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+	int d;
+	if (addr % 2) {
+		read_flash(addr - 1 - CFG_FLASH_BASE, &d);
+		d = (int)((d & 0x00FF) | (*src++ << 8));
+		write_data(addr - 1, 2, (uchar *) & d);
+		write_data(addr + 1, cnt - 1, src);
+	} else
+		write_data(addr, cnt, src);
+	return FLASH_SUCCESS;
+}
+
+int write_data(long lStart, long lCount, uchar * pnData)
+{
+	long i = 0;
+	unsigned long ulOffset = lStart - CFG_FLASH_BASE;
+	int d;
+	int nSector = 0;
+	int flag = 0;
+
+	if (lCount % 2) {
+		flag = 1;
+		lCount = lCount - 1;
+	}
+
+	for (i = 0; i < lCount - 1; i += 2, ulOffset += 2) {
+		get_sector_number(ulOffset, &nSector);
+		read_flash(ulOffset, &d);
+		if (d != 0xffff) {
+			printf
+			    ("Flash not erased at offset 0x%x Please erase to reprogram \n",
+			     ulOffset);
+			return FLASH_FAIL;
+		}
+		unlock_flash(ulOffset);
+		d = (int)(pnData[i] | pnData[i + 1] << 8);
+		write_flash(ulOffset, d);
+		if (poll_toggle_bit(ulOffset) < 0) {
+			printf("Error programming the flash \n");
+			return FLASH_FAIL;
+		}
+		if ((i > 0) && (!(i % AFP_SectorSize2)))
+			printf(".");
+	}
+	if (flag) {
+		get_sector_number(ulOffset, &nSector);
+		read_flash(ulOffset, &d);
+		if (d != 0xffff) {
+			printf
+			    ("Flash not erased at offset 0x%x Please erase to reprogram \n",
+			     ulOffset);
+			return FLASH_FAIL;
+		}
+		unlock_flash(ulOffset);
+		d = (int)(pnData[i] | (d & 0xFF00));
+		write_flash(ulOffset, d);
+		if (poll_toggle_bit(ulOffset) < 0) {
+			printf("Error programming the flash \n");
+			return FLASH_FAIL;
+		}
+	}
+	return FLASH_SUCCESS;
+}
+
+int write_flash(long nOffset, int nValue)
+{
+	long addr;
+
+	addr = (CFG_FLASH_BASE + nOffset);
+	*(unsigned volatile short *)addr = nValue;
+	sync();
+#if (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT)
+	if (icache_status())
+		udelay(CONFIG_CCLK_HZ / 1000000);
+#endif
+	return FLASH_SUCCESS;
+}
+
+int read_flash(long nOffset, int *pnValue)
+{
+	unsigned short *pFlashAddr =
+	    (unsigned short *)(CFG_FLASH_BASE + nOffset);
+
+	*pnValue = *pFlashAddr;
+
+	return TRUE;
+}
+
+int poll_toggle_bit(long lOffset)
+{
+	unsigned int u1, u2;
+	volatile unsigned long *FB =
+	    (volatile unsigned long *)(CFG_FLASH_BASE + lOffset);
+	while (1) {
+		u1 = *(volatile unsigned short *)FB;
+		u2 = *(volatile unsigned short *)FB;
+		u1 ^= u2;
+		if (!(u1 & 0x0040))
+			break;
+		if (!(u2 & 0x0020))
+			continue;
+		else {
+			u1 = *(volatile unsigned short *)FB;
+			u2 = *(volatile unsigned short *)FB;
+			u1 ^= u2;
+			if (!(u1 & 0x0040))
+				break;
+			else {
+				reset_flash();
+				return FLASH_FAIL;
+			}
+		}
+	}
+	return FLASH_SUCCESS;
+}
+
+void reset_flash(void)
+{
+	write_flash(WRITESEQ1, RESET_VAL);
+	/* Wait for 10 micro seconds */
+	udelay(10);
+}
+
+int erase_flash(void)
+{
+	write_flash(WRITESEQ1, WRITEDATA1);
+	write_flash(WRITESEQ2, WRITEDATA2);
+	write_flash(WRITESEQ3, WRITEDATA3);
+	write_flash(WRITESEQ4, WRITEDATA4);
+	write_flash(WRITESEQ5, WRITEDATA5);
+	write_flash(WRITESEQ6, WRITEDATA6);
+
+	if (poll_toggle_bit(0x0000) < 0)
+		return FLASH_FAIL;
+
+	return FLASH_SUCCESS;
+}
+
+int erase_block_flash(int nBlock)
+{
+	long ulSectorOff = 0x0;
+
+	if ((nBlock < 0) || (nBlock > AFP_NumSectors))
+		return FALSE;
+
+	// figure out the offset of the block in flash
+	if ((nBlock >= 0) && (nBlock < SecFlashABegin))
+		ulSectorOff = nBlock * AFP_SectorSize1;
+
+	else if ((nBlock >= SecFlashABegin) && (nBlock < NUM_SECTORS))
+		ulSectorOff =
+		    SecFlashAOff + (nBlock - SecFlashABegin) * AFP_SectorSize2;
+	// no such sector
+	else
+		return FLASH_FAIL;
+
+	write_flash((WRITESEQ1 | ulSectorOff), WRITEDATA1);
+	write_flash((WRITESEQ2 | ulSectorOff), WRITEDATA2);
+	write_flash((WRITESEQ3 | ulSectorOff), WRITEDATA3);
+	write_flash((WRITESEQ4 | ulSectorOff), WRITEDATA4);
+	write_flash((WRITESEQ5 | ulSectorOff), WRITEDATA5);
+
+	write_flash(ulSectorOff, BlockEraseVal);
+
+	if (poll_toggle_bit(ulSectorOff) < 0)
+		return FLASH_FAIL;
+	printf(".");
+
+	return FLASH_SUCCESS;
+}
+
+void unlock_flash(long ulOffset)
+{
+	unsigned long ulOffsetAddr = ulOffset;
+	ulOffsetAddr &= 0xFFFF0000;
+
+	write_flash((WRITESEQ1 | ulOffsetAddr), UNLOCKDATA1);
+	write_flash((WRITESEQ2 | ulOffsetAddr), UNLOCKDATA2);
+	write_flash((WRITESEQ3 | ulOffsetAddr), UNLOCKDATA3);
+}
+
+int get_codes()
+{
+	int dev_id = 0;
+
+	write_flash(WRITESEQ1, GETCODEDATA1);
+	write_flash(WRITESEQ2, GETCODEDATA2);
+	write_flash(WRITESEQ3, GETCODEDATA3);
+
+	read_flash(0x0402, &dev_id);
+	dev_id &= 0x0000FFFF;
+
+	reset_flash();
+
+	return dev_id;
+}
+
+void get_sector_number(long ulOffset, int *pnSector)
+{
+	int nSector = 0;
+	long lMainEnd = 0x400000;
+	long lBootEnd = 0x10000;
+
+	// sector numbers for the FLASH A boot sectors
+	if (ulOffset < lBootEnd) {
+		nSector = (int)ulOffset / AFP_SectorSize1;
+	}
+	// sector numbers for the FLASH B boot sectors
+	else if ((ulOffset >= lBootEnd) && (ulOffset < lMainEnd)) {
+		nSector = ((ulOffset / (AFP_SectorSize2)) + 7);
+	}
+	// if it is a valid sector, set it
+	if ((nSector >= 0) && (nSector < AFP_NumSectors))
+		*pnSector = nSector;
+
+}
diff --git a/board/bf537-stamp/nand.c b/board/bf537-stamp/nand.c
new file mode 100644
index 0000000..4d6e776
--- /dev/null
+++ b/board/bf537-stamp/nand.c
@@ -0,0 +1,106 @@
+/*
+ * (C) Copyright 2006 Aubrey.Li, aubrey.li@analog.com
+ *
+ * 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 <common.h>
+#include <asm/io.h>
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+
+#include <nand.h>
+
+#define CONCAT(a,b,c,d) a ## b ## c ## d
+#define PORT(a,b)  CONCAT(pPORT,a,b,)
+
+#ifndef CONFIG_NAND_GPIO_PORT
+#define CONFIG_NAND_GPIO_PORT F
+#endif
+
+/*
+ * hardware specific access to control-lines
+ */
+static void bfin_hwcontrol(struct mtd_info *mtd, int cmd)
+{
+	register struct nand_chip *this = mtd->priv;
+
+	switch (cmd) {
+
+	case NAND_CTL_SETCLE:
+		this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_CLE;
+		break;
+	case NAND_CTL_CLRCLE:
+		this->IO_ADDR_W = CFG_NAND_BASE;
+		break;
+
+	case NAND_CTL_SETALE:
+		this->IO_ADDR_W = CFG_NAND_BASE + BFIN_NAND_ALE;
+		break;
+	case NAND_CTL_CLRALE:
+		this->IO_ADDR_W = CFG_NAND_BASE;
+		break;
+	case NAND_CTL_SETNCE:
+	case NAND_CTL_CLRNCE:
+		break;
+	}
+
+	this->IO_ADDR_R = this->IO_ADDR_W;
+
+	/* Drain the writebuffer */
+	sync();
+}
+
+int bfin_device_ready(struct mtd_info *mtd)
+{
+	int ret = (*PORT(CONFIG_NAND_GPIO_PORT, IO) & BFIN_NAND_READY) ? 1 : 0;
+	sync();
+	return ret;
+}
+
+/*
+ * Board-specific NAND initialization. The following members of the
+ * argument are board-specific (per include/linux/mtd/nand.h):
+ * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
+ * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
+ * - hwcontrol: hardwarespecific function for accesing control-lines
+ * - dev_ready: hardwarespecific function for  accesing device ready/busy line
+ * - enable_hwecc?: function to enable (reset)  hardware ecc generator. Must
+ *   only be provided if a hardware ECC is available
+ * - eccmode: mode of ecc, see defines
+ * - chip_delay: chip dependent delay for transfering data from array to
+ *   read regs (tR)
+ * - options: various chip options. They can partly be set to inform
+ *   nand_scan about special functionality. See the defines for further
+ *   explanation
+ * 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)
+{
+	*PORT(CONFIG_NAND_GPIO_PORT, _FER) &= ~BFIN_NAND_READY;
+	*PORT(CONFIG_NAND_GPIO_PORT, IO_DIR) &= ~BFIN_NAND_READY;
+	*PORT(CONFIG_NAND_GPIO_PORT, IO_INEN) |= BFIN_NAND_READY;
+
+	nand->hwcontrol = bfin_hwcontrol;
+	nand->eccmode = NAND_ECC_SOFT;
+	nand->dev_ready = bfin_device_ready;
+	nand->chip_delay = 30;
+}
+#endif				/* (CONFIG_COMMANDS & CFG_CMD_NAND) */
diff --git a/board/bf537-stamp/post-memory.c b/board/bf537-stamp/post-memory.c
new file mode 100644
index 0000000..6039350
--- /dev/null
+++ b/board/bf537-stamp/post-memory.c
@@ -0,0 +1,322 @@
+#include <common.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+#include <watchdog.h>
+
+#if CONFIG_POST & CFG_POST_MEMORY
+#define CLKIN 25000000
+#define PATTERN1 0x5A5A5A5A
+#define PATTERN2 0xAAAAAAAA
+
+#define CCLK_NUM	4
+#define SCLK_NUM	3
+
+void post_out_buff(char *buff);
+int post_key_pressed(void);
+void post_init_pll(int mult, int div);
+int post_init_sdram(int sclk);
+void post_init_uart(int sclk);
+
+const int pll[CCLK_NUM][SCLK_NUM][2] = {
+	{{20, 4}, {20, 5}, {20, 10}},	/* CCLK = 500M */
+	{{16, 4}, {16, 5}, {16, 8}},	/* CCLK = 400M */
+	{{8, 2}, {8, 4}, {8, 5}},	/* CCLK = 200M */
+	{{4, 1}, {4, 2}, {4, 4}}	/* CCLK = 100M */
+};
+const char *const log[CCLK_NUM][SCLK_NUM] = {
+	{"CCLK-500Mhz SCLK-125Mhz:    Writing...\0",
+	 "CCLK-500Mhz SCLK-100Mhz:    Writing...\0",
+	 "CCLK-500Mhz SCLK- 50Mhz:    Writing...\0",},
+	{"CCLK-400Mhz SCLK-100Mhz:    Writing...\0",
+	 "CCLK-400Mhz SCLK- 80Mhz:    Writing...\0",
+	 "CCLK-400Mhz SCLK- 50Mhz:    Writing...\0",},
+	{"CCLK-200Mhz SCLK-100Mhz:    Writing...\0",
+	 "CCLK-200Mhz SCLK- 50Mhz:    Writing...\0",
+	 "CCLK-200Mhz SCLK- 40Mhz:    Writing...\0",},
+	{"CCLK-100Mhz SCLK-100Mhz:    Writing...\0",
+	 "CCLK-100Mhz SCLK- 50Mhz:    Writing...\0",
+	 "CCLK-100Mhz SCLK- 25Mhz:    Writing...\0",},
+};
+
+int memory_post_test(int flags)
+{
+	int addr;
+	int m, n;
+	int sclk, sclk_temp;
+	int ret = 1;
+
+	sclk_temp = CLKIN / 1000000;
+	sclk_temp = sclk_temp * CONFIG_VCO_MULT;
+	for (sclk = 0; sclk_temp > 0; sclk++)
+		sclk_temp -= CONFIG_SCLK_DIV;
+	sclk = sclk * 1000000;
+	post_init_uart(sclk);
+	if (post_key_pressed() == 0)
+		return 0;
+
+	for (m = 0; m < CCLK_NUM; m++) {
+		for (n = 0; n < SCLK_NUM; n++) {
+			/* Calculate the sclk */
+			sclk_temp = CLKIN / 1000000;
+			sclk_temp = sclk_temp * pll[m][n][0];
+			for (sclk = 0; sclk_temp > 0; sclk++)
+				sclk_temp -= pll[m][n][1];
+			sclk = sclk * 1000000;
+
+			post_init_pll(pll[m][n][0], pll[m][n][1]);
+			post_init_sdram(sclk);
+			post_init_uart(sclk);
+			post_out_buff("\n\r\0");
+			post_out_buff(log[m][n]);
+			for (addr = 0x0; addr < CFG_MAX_RAM_SIZE; addr += 4)
+				*(unsigned long *)addr = PATTERN1;
+			post_out_buff("Reading...\0");
+			for (addr = 0x0; addr < CFG_MAX_RAM_SIZE; addr += 4) {
+				if ((*(unsigned long *)addr) != PATTERN1) {
+					post_out_buff("Error\n\r\0");
+					ret = 0;
+				}
+			}
+			post_out_buff("OK\n\r\0");
+		}
+	}
+	if (ret)
+		post_out_buff("memory POST passed\n\r\0");
+	else
+		post_out_buff("memory POST failed\n\r\0");
+
+	post_out_buff("\n\r\n\r\0");
+	return 1;
+}
+
+void post_init_uart(int sclk)
+{
+	int divisor;
+
+	for (divisor = 0; sclk > 0; divisor++)
+		sclk -= 57600 * 16;
+
+	*pPORTF_FER = 0x000F;
+	*pPORTH_FER = 0xFFFF;
+
+	*pUART_GCTL = 0x00;
+	*pUART_LCR = 0x83;
+	sync();
+	*pUART_DLL = (divisor & 0xFF);
+	sync();
+	*pUART_DLH = ((divisor >> 8) & 0xFF);
+	sync();
+	*pUART_LCR = 0x03;
+	sync();
+	*pUART_GCTL = 0x01;
+	sync();
+}
+
+void post_out_buff(char *buff)
+{
+
+	int i = 0;
+	for (i = 0; i < 0x80000; i++) ;
+	i = 0;
+	while ((buff[i] != '\0') && (i != 100)) {
+		while (!(*pUART_LSR & 0x20)) ;
+		*pUART_THR = buff[i];
+		sync();
+		i++;
+	}
+	for (i = 0; i < 0x80000; i++) ;
+}
+
+/* Using sw10-PF5 as the hotkey */
+#define KEY_LOOP 0x80000
+#define KEY_DELAY 0x80
+int post_key_pressed(void)
+{
+	int i, n;
+	unsigned short value;
+
+	*pPORTF_FER &= ~PF5;
+	*pPORTFIO_DIR &= ~PF5;
+	*pPORTFIO_INEN |= PF5;
+	sync();
+
+	post_out_buff("########Press SW10 to enter Memory POST########: 3\0");
+	for (i = 0; i < KEY_LOOP; i++) {
+		value = *pPORTFIO & PF5;
+		if (*pUART0_RBR == 0x0D) {
+			value = 0;
+			goto key_pressed;
+		}
+		if (value != 0) {
+			goto key_pressed;
+		}
+		for (n = 0; n < KEY_DELAY; n++)
+			asm("nop");
+	}
+	post_out_buff("\b2\0");
+
+	for (i = 0; i < KEY_LOOP; i++) {
+		value = *pPORTFIO & PF5;
+		if (*pUART0_RBR == 0x0D) {
+			value = 0;
+			goto key_pressed;
+		}
+		if (value != 0) {
+			goto key_pressed;
+		}
+		for (n = 0; n < KEY_DELAY; n++)
+			asm("nop");
+	}
+	post_out_buff("\b1\0");
+
+	for (i = 0; i < KEY_LOOP; i++) {
+		value = *pPORTFIO & PF5;
+		if (*pUART0_RBR == 0x0D) {
+			value = 0;
+			goto key_pressed;
+		}
+		if (value != 0) {
+			goto key_pressed;
+		}
+		for (n = 0; n < KEY_DELAY; n++)
+			asm("nop");
+	}
+      key_pressed:
+	post_out_buff("\b0");
+	post_out_buff("\n\r\0");
+	if (value == 0)
+		return 0;
+	post_out_buff("Hotkey has been pressed, Enter POST . . . . . .\n\r\0");
+	return 1;
+}
+
+void post_init_pll(int mult, int div)
+{
+
+	*pSIC_IWR = 0x01;
+	*pPLL_CTL = (mult << 9);
+	*pPLL_DIV = div;
+	asm("CLI R2;");
+	asm("IDLE;");
+	asm("STI R2;");
+	while (!(*pPLL_STAT & 0x20)) ;
+}
+
+int post_init_sdram(int sclk)
+{
+	int SDRAM_tRP, SDRAM_tRP_num, SDRAM_tRAS, SDRAM_tRAS_num, SDRAM_tRCD,
+	    SDRAM_tWR;
+	int SDRAM_Tref, SDRAM_NRA, SDRAM_CL, SDRAM_SIZE, SDRAM_WIDTH,
+	    mem_SDGCTL, mem_SDBCTL, mem_SDRRC;
+
+	if ((sclk > 119402985)) {
+		SDRAM_tRP = TRP_2;
+		SDRAM_tRP_num = 2;
+		SDRAM_tRAS = TRAS_7;
+		SDRAM_tRAS_num = 7;
+		SDRAM_tRCD = TRCD_2;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 104477612) && (sclk <= 119402985)) {
+		SDRAM_tRP = TRP_2;
+		SDRAM_tRP_num = 2;
+		SDRAM_tRAS = TRAS_6;
+		SDRAM_tRAS_num = 6;
+		SDRAM_tRCD = TRCD_2;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 89552239) && (sclk <= 104477612)) {
+		SDRAM_tRP = TRP_2;
+		SDRAM_tRP_num = 2;
+		SDRAM_tRAS = TRAS_5;
+		SDRAM_tRAS_num = 5;
+		SDRAM_tRCD = TRCD_2;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 74626866) && (sclk <= 89552239)) {
+		SDRAM_tRP = TRP_2;
+		SDRAM_tRP_num = 2;
+		SDRAM_tRAS = TRAS_4;
+		SDRAM_tRAS_num = 4;
+		SDRAM_tRCD = TRCD_2;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 66666667) && (sclk <= 74626866)) {
+		SDRAM_tRP = TRP_2;
+		SDRAM_tRP_num = 2;
+		SDRAM_tRAS = TRAS_3;
+		SDRAM_tRAS_num = 3;
+		SDRAM_tRCD = TRCD_2;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 59701493) && (sclk <= 66666667)) {
+		SDRAM_tRP = TRP_1;
+		SDRAM_tRP_num = 1;
+		SDRAM_tRAS = TRAS_4;
+		SDRAM_tRAS_num = 4;
+		SDRAM_tRCD = TRCD_1;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 44776119) && (sclk <= 59701493)) {
+		SDRAM_tRP = TRP_1;
+		SDRAM_tRP_num = 1;
+		SDRAM_tRAS = TRAS_3;
+		SDRAM_tRAS_num = 3;
+		SDRAM_tRCD = TRCD_1;
+		SDRAM_tWR = TWR_2;
+	} else if ((sclk > 29850746) && (sclk <= 44776119)) {
+		SDRAM_tRP = TRP_1;
+		SDRAM_tRP_num = 1;
+		SDRAM_tRAS = TRAS_2;
+		SDRAM_tRAS_num = 2;
+		SDRAM_tRCD = TRCD_1;
+		SDRAM_tWR = TWR_2;
+	} else if (sclk <= 29850746) {
+		SDRAM_tRP = TRP_1;
+		SDRAM_tRP_num = 1;
+		SDRAM_tRAS = TRAS_1;
+		SDRAM_tRAS_num = 1;
+		SDRAM_tRCD = TRCD_1;
+		SDRAM_tWR = TWR_2;
+	} else {
+		SDRAM_tRP = TRP_1;
+		SDRAM_tRP_num = 1;
+		SDRAM_tRAS = TRAS_1;
+		SDRAM_tRAS_num = 1;
+		SDRAM_tRCD = TRCD_1;
+		SDRAM_tWR = TWR_2;
+	}
+	/*SDRAM INFORMATION: */
+	SDRAM_Tref = 64;	/* Refresh period in milliseconds */
+	SDRAM_NRA = 4096;	/* Number of row addresses in SDRAM */
+	SDRAM_CL = CL_3;	/* 2 */
+
+	SDRAM_SIZE = EBSZ_64;
+	SDRAM_WIDTH = EBCAW_10;
+
+	mem_SDBCTL = SDRAM_WIDTH | SDRAM_SIZE | EBE;
+
+	/* Equation from section 17 (p17-46) of BF533 HRM */
+	mem_SDRRC =
+	    (((CONFIG_SCLK_HZ / 1000) * SDRAM_Tref) / SDRAM_NRA) -
+	    (SDRAM_tRAS_num + SDRAM_tRP_num);
+
+	/* Enable SCLK Out */
+	mem_SDGCTL =
+	    (SCTLE | SDRAM_CL | SDRAM_tRAS | SDRAM_tRP | SDRAM_tRCD | SDRAM_tWR
+	     | PSS);
+
+	sync();
+
+	*pEBIU_SDGCTL |= 0x1000000;
+	/* Set the SDRAM Refresh Rate control register based on SSCLK value */
+	*pEBIU_SDRRC = mem_SDRRC;
+
+	/* SDRAM Memory Bank Control Register */
+	*pEBIU_SDBCTL = mem_SDBCTL;
+
+	/* SDRAM Memory Global Control Register */
+	*pEBIU_SDGCTL = mem_SDGCTL;
+	sync();
+	return mem_SDRRC;
+}
+
+#endif				/* CONFIG_POST & CFG_POST_MEMORY */
+#endif				/* CONFIG_POST */
diff --git a/board/bf537-stamp/stm_m25p64.c b/board/bf537-stamp/stm_m25p64.c
new file mode 100644
index 0000000..7077e85
--- /dev/null
+++ b/board/bf537-stamp/stm_m25p64.c
@@ -0,0 +1,515 @@
+/****************************************************************************
+ *  SPI flash driver for M25P64
+ ****************************************************************************/
+#include <common.h>
+#include <linux/ctype.h>
+#include <asm/io.h>
+
+#if defined(CONFIG_SPI)
+
+/* Application definitions */
+
+#define	NUM_SECTORS 	128	/* number of sectors */
+#define SECTOR_SIZE	0x10000
+#define NOP_NUM		1000
+
+#define COMMON_SPI_SETTINGS (SPE|MSTR|CPHA|CPOL) /* Settings to the SPI_CTL */
+#define TIMOD01 (0x01)	/* stes the SPI to work with core instructions */
+
+/* Flash commands */
+#define	SPI_WREN	(0x06)	/*Set Write Enable Latch */
+#define	SPI_WRDI	(0x04)	/*Reset Write Enable Latch */
+#define	SPI_RDSR	(0x05)	/*Read Status Register */
+#define	SPI_WRSR	(0x01)	/*Write Status Register */
+#define	SPI_READ	(0x03)	/*Read data from memory */
+#define	SPI_FAST_READ	(0x0B)	/*Read data from memory */
+#define	SPI_PP		(0x02)	/*Program Data into memory */
+#define	SPI_SE		(0xD8)	/*Erase one sector in memory */
+#define	SPI_BE		(0xC7)	/*Erase all memory */
+#define	WIP		(0x1)	/*Check the write in progress bit of the SPI status register */
+#define	WEL		(0x2)	/*Check the write enable bit of the SPI status register */
+
+#define	TIMEOUT		350000000
+
+typedef enum {
+	NO_ERR,
+	POLL_TIMEOUT,
+	INVALID_SECTOR,
+	INVALID_BLOCK,
+} ERROR_CODE;
+
+void spi_init_f(void);
+void spi_init_r(void);
+ssize_t spi_read(uchar *, int, uchar *, int);
+ssize_t spi_write(uchar *, int, uchar *, int);
+
+char ReadStatusRegister(void);
+void Wait_For_SPIF(void);
+void SetupSPI(const int spi_setting);
+void SPI_OFF(void);
+void SendSingleCommand(const int iCommand);
+
+ERROR_CODE GetSectorNumber(unsigned long ulOffset, int *pnSector);
+ERROR_CODE EraseBlock(int nBlock);
+ERROR_CODE ReadData(unsigned long ulStart, long lCount, int *pnData);
+ERROR_CODE WriteData(unsigned long ulStart, long lCount, int *pnData);
+ERROR_CODE Wait_For_Status(char Statusbit);
+ERROR_CODE Wait_For_WEL(void);
+
+/*
+ * Function:    spi_init_f
+ * Description: Init SPI-Controller (ROM part)
+ * return:      ---
+ */
+void spi_init_f(void)
+{
+}
+
+/*
+ * Function:    spi_init_r
+ * Description: Init SPI-Controller (RAM part) -
+ *		 The malloc engine is ready and we can move our buffers to
+ *		 normal RAM
+ *  return:      ---
+ */
+void spi_init_r(void)
+{
+	return;
+}
+
+/*
+ * Function:    spi_write
+ */
+ssize_t spi_write(uchar * addr, int alen, uchar * buffer, int len)
+{
+	unsigned long offset;
+	int start_block, end_block;
+	int start_byte, end_byte;
+	ERROR_CODE result = NO_ERR;
+	uchar temp[SECTOR_SIZE];
+	int i, num;
+
+	offset = addr[0] << 16 | addr[1] << 8 | addr[2];
+	/* Get the start block number */
+	result = GetSectorNumber(offset, &start_block);
+	if (result == INVALID_SECTOR) {
+		printf("Invalid sector! ");
+		return 0;
+	}
+	/* Get the end block number */
+	result = GetSectorNumber(offset + len - 1, &end_block);
+	if (result == INVALID_SECTOR) {
+		printf("Invalid sector! ");
+		return 0;
+	}
+
+	for (num = start_block; num <= end_block; num++) {
+		ReadData(num * SECTOR_SIZE, SECTOR_SIZE, (int *)temp);
+		start_byte = num * SECTOR_SIZE;
+		end_byte = (num + 1) * SECTOR_SIZE - 1;
+		if (start_byte < offset)
+			start_byte = offset;
+		if (end_byte > (offset + len))
+			end_byte = (offset + len - 1);
+		for (i = start_byte; i <= end_byte; i++)
+			temp[i - num * SECTOR_SIZE] = buffer[i - offset];
+		EraseBlock(num);
+		result = WriteData(num * SECTOR_SIZE, SECTOR_SIZE, (int *)temp);
+		if (result != NO_ERR)
+			return 0;
+		printf(".");
+	}
+	return len;
+}
+
+/*
+ * Function: spi_read
+ */
+ssize_t spi_read(uchar * addr, int alen, uchar * buffer, int len)
+{
+	unsigned long offset;
+	offset = addr[0] << 16 | addr[1] << 8 | addr[2];
+	ReadData(offset, len, (int *)buffer);
+	return len;
+}
+
+void SendSingleCommand(const int iCommand)
+{
+	unsigned short dummy;
+
+	/* turns on the SPI in single write mode */
+	SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+	/* sends the actual command to the SPI TX register */
+	*pSPI_TDBR = iCommand;
+	sync();
+
+	/* The SPI status register will be polled to check the SPIF bit */
+	Wait_For_SPIF();
+
+	dummy = *pSPI_RDBR;
+
+	/* The SPI will be turned off */
+	SPI_OFF();
+
+}
+
+void SetupSPI(const int spi_setting)
+{
+
+	if (icache_status() || dcache_status())
+		udelay(CONFIG_CCLK_HZ / 50000000);
+	/*sets up the PF10 to be the slave select of the SPI */
+	*pPORTF_FER |= (PF10 | PF11 | PF12 | PF13);
+	*pSPI_FLG = 0xFF02;
+	*pSPI_BAUD = CONFIG_SPI_BAUD;
+	*pSPI_CTL = spi_setting;
+	sync();
+
+	*pSPI_FLG = 0xFD02;
+	sync();
+}
+
+void SPI_OFF(void)
+{
+
+	*pSPI_CTL = 0x0400;	/* disable SPI */
+	*pSPI_FLG = 0;
+	*pSPI_BAUD = 0;
+	sync();
+	udelay(CONFIG_CCLK_HZ / 50000000);
+
+}
+
+void Wait_For_SPIF(void)
+{
+	unsigned short dummyread;
+	while ((*pSPI_STAT & TXS)) ;
+	while (!(*pSPI_STAT & SPIF)) ;
+	while (!(*pSPI_STAT & RXS)) ;
+	/* Read dummy to empty the receive register */
+	dummyread = *pSPI_RDBR;
+}
+
+ERROR_CODE Wait_For_WEL(void)
+{
+	int i;
+	char status_register = 0;
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	for (i = 0; i < TIMEOUT; i++) {
+		status_register = ReadStatusRegister();
+		if ((status_register & WEL)) {
+			ErrorCode = NO_ERR;
+			break;
+		}
+		ErrorCode = POLL_TIMEOUT;	/* Time out error */
+	};
+
+	return ErrorCode;
+}
+
+ERROR_CODE Wait_For_Status(char Statusbit)
+{
+	int i;
+	char status_register = 0xFF;
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	for (i = 0; i < TIMEOUT; i++) {
+		status_register = ReadStatusRegister();
+		if (!(status_register & Statusbit)) {
+			ErrorCode = NO_ERR;
+			break;
+		}
+		ErrorCode = POLL_TIMEOUT;	/* Time out error */
+	};
+
+	return ErrorCode;
+}
+
+char ReadStatusRegister(void)
+{
+	char status_register = 0;
+
+	SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));	/* Turn on the SPI */
+
+	*pSPI_TDBR = SPI_RDSR;	/* send instruction to read status register */
+	sync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	*pSPI_TDBR = 0;		/*send dummy to receive the status register */
+	sync();
+	Wait_For_SPIF();	/*wait until the data has been sent */
+	status_register = *pSPI_RDBR;	/*read the status register */
+
+	SPI_OFF();		/* Turn off the SPI */
+
+	return status_register;
+}
+
+ERROR_CODE GetSectorNumber(unsigned long ulOffset, int *pnSector)
+{
+	int nSector = 0;
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	if (ulOffset > (NUM_SECTORS * 0x10000 - 1)) {
+		ErrorCode = INVALID_SECTOR;
+		return ErrorCode;
+	}
+
+	nSector = (int)ulOffset / 0x10000;
+	*pnSector = nSector;
+
+	return ErrorCode;
+}
+
+ERROR_CODE EraseBlock(int nBlock)
+{
+	unsigned long ulSectorOff = 0x0, ShiftValue;
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	/* if the block is invalid just return */
+	if ((nBlock < 0) || (nBlock > NUM_SECTORS)) {
+		ErrorCode = INVALID_BLOCK;
+		return ErrorCode;
+	}
+	/* figure out the offset of the block in flash */
+	if ((nBlock >= 0) && (nBlock < NUM_SECTORS)) {
+		ulSectorOff = (nBlock * SECTOR_SIZE);
+
+	} else {
+		ErrorCode = INVALID_BLOCK;
+		return ErrorCode;
+	}
+
+	/* A write enable instruction must previously have been executed */
+	SendSingleCommand(SPI_WREN);
+
+	/* The status register will be polled to check the write enable latch "WREN" */
+	ErrorCode = Wait_For_WEL();
+
+	if (POLL_TIMEOUT == ErrorCode) {
+		printf("SPI Erase block error\n");
+		return ErrorCode;
+	} else
+
+	/* Turn on the SPI to send single commands */
+	SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+	/*
+	 * Send the erase block command to the flash followed by the 24 address
+	 * to point to the start of a sector
+	 */
+	*pSPI_TDBR = SPI_SE;
+	sync();
+	Wait_For_SPIF();
+	/* Send the highest byte of the 24 bit address at first */
+	ShiftValue = (ulSectorOff >> 16);
+	*pSPI_TDBR = ShiftValue;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/* Send the middle byte of the 24 bit address  at second */
+	ShiftValue = (ulSectorOff >> 8);
+	*pSPI_TDBR = ShiftValue;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/* Send the lowest byte of the 24 bit address finally */
+	*pSPI_TDBR = ulSectorOff;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+
+	/* Turns off the SPI */
+	SPI_OFF();
+
+	/* Poll the status register to check the Write in Progress bit */
+	/* Sector erase takes time */
+	ErrorCode = Wait_For_Status(WIP);
+
+	/* block erase should be complete */
+	return ErrorCode;
+}
+
+/*
+ * ERROR_CODE ReadData()
+ * Read a value from flash for verify purpose
+ * Inputs:	unsigned long ulStart - holds the SPI start address
+ *			int pnData - pointer to store value read from flash
+ *			long lCount - number of elements to read
+ */
+ERROR_CODE ReadData(unsigned long ulStart, long lCount, int *pnData)
+{
+	unsigned long ShiftValue;
+	char *cnData;
+	int i;
+
+	/* Pointer cast to be able to increment byte wise */
+
+	cnData = (char *)pnData;
+	/* Start SPI interface */
+	SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+#ifdef CONFIG_SPI_FLASH_FAST_READ
+	/* Send the read command to SPI device */
+	*pSPI_TDBR = SPI_FAST_READ;
+#else
+	/* Send the read command to SPI device */
+	*pSPI_TDBR = SPI_READ;
+#endif
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/* Send the highest byte of the 24 bit address at first */
+	ShiftValue = (ulStart >> 16);
+	/* Send the byte to the SPI device */
+	*pSPI_TDBR = ShiftValue;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/* Send the middle byte of the 24 bit address  at second */
+	ShiftValue = (ulStart >> 8);
+	/* Send the byte to the SPI device */
+	*pSPI_TDBR = ShiftValue;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/* Send the lowest byte of the 24 bit address finally */
+	*pSPI_TDBR = ulStart;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+
+#ifdef CONFIG_SPI_FLASH_FAST_READ
+	/* Send dummy for FAST_READ */
+	*pSPI_TDBR = 0;
+	sync();
+	/* Wait until the instruction has been sent */
+	Wait_For_SPIF();
+#endif
+
+	/* After the SPI device address has been placed on the MOSI pin the data can be */
+	/* received on the MISO pin. */
+	for (i = 0; i < lCount; i++) {
+		*pSPI_TDBR = 0;
+		sync();
+		while (!(*pSPI_STAT & RXS)) ;
+		*cnData++ = *pSPI_RDBR;
+
+		if ((i >= SECTOR_SIZE) && (i % SECTOR_SIZE == 0))
+			printf(".");
+	}
+
+	/* Turn off the SPI */
+	SPI_OFF();
+
+	return NO_ERR;
+}
+
+ERROR_CODE WriteFlash(unsigned long ulStartAddr, long lTransferCount,
+		      int *iDataSource, long *lWriteCount)
+{
+
+	unsigned long ulWAddr;
+	long lWTransferCount = 0;
+	int i;
+	char iData;
+	char *temp = (char *)iDataSource;
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	/* First, a Write Enable Command must be sent to the SPI. */
+	SendSingleCommand(SPI_WREN);
+
+	/*
+	 * Second, the SPI Status Register will be tested whether the
+	 * Write Enable Bit has been set
+	 */
+	ErrorCode = Wait_For_WEL();
+	if (POLL_TIMEOUT == ErrorCode) {
+		printf("SPI Write Time Out\n");
+		return ErrorCode;
+	} else
+		/* Third, the 24 bit address will be shifted out
+		 * the SPI MOSI bytewise.
+		 * Turns the SPI on
+		 */
+		SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+	*pSPI_TDBR = SPI_PP;
+	sync();
+	/*wait until the instruction has been sent */
+	Wait_For_SPIF();
+	ulWAddr = (ulStartAddr >> 16);
+	*pSPI_TDBR = ulWAddr;
+	sync();
+	/*wait until the instruction has been sent */
+	Wait_For_SPIF();
+	ulWAddr = (ulStartAddr >> 8);
+	*pSPI_TDBR = ulWAddr;
+	sync();
+	/*wait until the instruction has been sent */
+	Wait_For_SPIF();
+	ulWAddr = ulStartAddr;
+	*pSPI_TDBR = ulWAddr;
+	sync();
+	/*wait until the instruction has been sent */
+	Wait_For_SPIF();
+	/*
+	 * Fourth, maximum number of 256 bytes will be taken from the Buffer
+	 * and sent to the SPI device.
+	 */
+	for (i = 0; (i < lTransferCount) && (i < 256); i++, lWTransferCount++) {
+		iData = *temp;
+		*pSPI_TDBR = iData;
+		sync();
+		/*wait until the instruction has been sent */
+		Wait_For_SPIF();
+		temp++;
+	}
+
+	/* Turns the SPI off */
+	SPI_OFF();
+
+	/*
+	 * Sixth, the SPI Write in Progress Bit must be toggled to ensure the
+	 * programming is done before start of next transfer
+	 */
+	ErrorCode = Wait_For_Status(WIP);
+
+	if (POLL_TIMEOUT == ErrorCode) {
+		printf("SPI Program Time out!\n");
+		return ErrorCode;
+	} else
+
+		*lWriteCount = lWTransferCount;
+
+	return ErrorCode;
+}
+
+ERROR_CODE WriteData(unsigned long ulStart, long lCount, int *pnData)
+{
+
+	unsigned long ulWStart = ulStart;
+	long lWCount = lCount, lWriteCount;
+	long *pnWriteCount = &lWriteCount;
+
+	ERROR_CODE ErrorCode = NO_ERR;
+
+	while (lWCount != 0) {
+		ErrorCode = WriteFlash(ulWStart, lWCount, pnData, pnWriteCount);
+
+		/*
+		 * After each function call of WriteFlash the counter
+		 * must be adjusted
+		 */
+		lWCount -= *pnWriteCount;
+
+		/* Also, both address pointers must be recalculated. */
+		ulWStart += *pnWriteCount;
+		pnData += *pnWriteCount / 4;
+	}
+
+	/* return the appropriate error code */
+	return ErrorCode;
+}
+
+#endif				/* CONFIG_SPI */
diff --git a/board/bf537-stamp/u-boot.lds.S b/board/bf537-stamp/u-boot.lds.S
new file mode 100644
index 0000000..3fb2d0c
--- /dev/null
+++ b/board/bf537-stamp/u-boot.lds.S
@@ -0,0 +1,190 @@
+/*
+ * U-boot - u-boot.lds.S
+ *
+ * Copyright (c) 2005-2007 Analog Device 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <config.h>
+
+OUTPUT_ARCH(bfin)
+SEARCH_DIR(/lib); SEARCH_DIR(/usr/lib); SEARCH_DIR(/usr/local/lib);
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+MEMORY
+ {
+ ram : 	   ORIGIN = (CFG_MONITOR_BASE), LENGTH = (256 * 1024)
+ l1_code : ORIGIN = 0xFFA00000, LENGTH = 0xC000
+ l1_data : ORIGIN = 0xFF900000, LENGTH = 0x4000
+ }
+
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS; /*0x1000;*/
+  .interp : { *(.interp) }
+  .hash          : { *(.hash)		}
+  .dynsym        : { *(.dynsym)		}
+  .dynstr        : { *(.dynstr)		}
+  .rel.text      : { *(.rel.text)	}
+  .rela.text     : { *(.rela.text) 	}
+  .rel.data      : { *(.rel.data)	}
+  .rela.data     : { *(.rela.data) 	}
+  .rel.rodata    : { *(.rel.rodata) 	}
+  .rela.rodata   : { *(.rela.rodata) 	}
+  .rel.got       : { *(.rel.got)	}
+  .rela.got      : { *(.rela.got)	}
+  .rel.ctors     : { *(.rel.ctors)	}
+  .rela.ctors    : { *(.rela.ctors)	}
+  .rel.dtors     : { *(.rel.dtors)	}
+  .rela.dtors    : { *(.rela.dtors)	}
+  .rel.bss       : { *(.rel.bss)	}
+  .rela.bss      : { *(.rela.bss)	}
+  .rel.plt       : { *(.rel.plt)	}
+  .rela.plt      : { *(.rela.plt)	}
+  .init          : { *(.init)		}
+  .plt : { *(.plt) }
+  . = CFG_MONITOR_BASE;
+  .text      :
+  {
+    /* WARNING - the following is hand-optimized to fit within	*/
+    /* the sector before the environment sector. If it throws 	*/
+    /* an error during compilation remove an object here to get	*/
+    /* it linked after the configuration sector.		*/
+
+    cpu/bf537/start.o		(.text)
+    cpu/bf537/start1.o		(.text)
+    cpu/bf537/traps.o		(.text)
+    cpu/bf537/interrupt.o	(.text)
+    cpu/bf537/serial.o		(.text)
+    common/dlmalloc.o		(.text)
+/*  lib_blackfin/bf533_string.o	(.text) */
+/*  lib_generic/vsprintf.o	(.text) */
+    lib_generic/crc32.o		(.text)
+/*  lib_generic/zlib.o		(.text) */
+/*  board/bf537-stamp/bf537-stamp.o		(.text) */
+
+    . = DEFINED(env_offset) ? env_offset : .;
+    common/environment.o	(.text)
+
+    *(EXCLUDE_FILE (board/bf537-stamp/post-memory.o) .text)
+    *(.fixup)
+    *(.got1)
+  }  > ram
+  _etext = .;
+  PROVIDE (etext = .);
+  .text_l1	:
+  {
+  . = ALIGN(4) ;
+  _text_l1 = .;
+  PROVIDE (text_l1 = .);
+  board/bf537-stamp/post-memory.o   (.text)
+  . = ALIGN(4) ;
+  _etext_l1 = .;
+  PROVIDE (etext_l1 = .);
+  } > l1_code AT > ram
+
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(EXCLUDE_FILE (board/bf537-stamp/post-memory.o) .rodata)
+    *(EXCLUDE_FILE (board/bf537-stamp/post-memory.o) .rodata1)
+    *(EXCLUDE_FILE (board/bf537-stamp/post-memory.o) .rodata.str1.4)
+    *(.eh_frame)
+    . = ALIGN(4);
+  } > ram
+
+  . = ALIGN(4);
+  _erodata = .;
+  PROVIDE (erodata = .);
+  .rodata_l1 :
+ {
+   . = ALIGN(4) ;
+   _rodata_l1 = .;
+   PROVIDE (rodata_l1 = .);
+   board/bf537-stamp/post-memory.o (.rodata)
+   board/bf537-stamp/post-memory.o (.rodata1)
+   board/bf537-stamp/post-memory.o (.rodata.str1.4)
+   . = ALIGN(4) ;
+   _erodata_l1 = .;
+   PROVIDE(erodata_l1 = .);
+ } > l1_data AT > ram
+
+  .fini      : { *(.fini)    } =0
+  .ctors     : { *(.ctors)   }
+  .dtors     : { *(.dtors)   }
+
+  /* Read-write section, merged into data segment: */
+  . = (. + 0x00FF) & 0xFFFFFF00;
+  _erotext = .;
+  PROVIDE (erotext = .);
+  .reloc   :
+  {
+    *(.got)
+    _GOT2_TABLE_ = .;
+    *(.got2)
+    _FIXUP_TABLE_ = .;
+    *(.fixup)
+  }
+  __got2_entries = (_FIXUP_TABLE_ - _GOT2_TABLE_) >>2;
+  __fixup_entries = (. - _FIXUP_TABLE_)>>2;
+
+  .data    :
+  {
+    *(.data)
+    *(.data1)
+    *(.sdata)
+    *(.sdata2)
+    *(.dynamic)
+    CONSTRUCTORS
+  } > ram
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  ___u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) } > ram
+  ___u_boot_cmd_end = .;
+
+
+  __start___ex_table = .;
+  __ex_table : { *(__ex_table) }
+  __stop___ex_table = .;
+
+  . = ALIGN(256);
+  __init_begin = .;
+  .text.init : { *(.text.init) }
+  .data.init : { *(.data.init) }
+  . = ALIGN(256);
+  __init_end = .;
+
+  .bss       :
+  {
+  __bss_start = .;
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  } > ram
+  _end = . ;
+  PROVIDE (end = .);
+}