[Blackfin]PATCH-1/2]: Remove obsolete blackfin port and add bf533 platform support

6 files changed, 1029 insertions, 0 deletions

diff --git a/board/bf533-stamp/Makefile b/board/bf533-stamp/Makefile
new file mode 100644
index 0000000..1efb851
--- /dev/null
+++ b/board/bf533-stamp/Makefile
@@ -0,0 +1,48 @@
+#
+# U-boot - Makefile
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	= $(BOARD).o spi.o
+
+$(LIB):	.depend $(OBJS) u-boot.lds
+	$(AR) cr $@ $(OBJS)
+
+u-boot.lds: u-boot.lds.S
+	$(CPP) $(CPPFLAGS) -P -Ubfin $^ > $@.tmp
+	mv -f $@.tmp $@
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################
diff --git a/board/bf533-stamp/bf533-stamp.c b/board/bf533-stamp/bf533-stamp.c
new file mode 100644
index 0000000..3e074e3
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.c
@@ -0,0 +1,275 @@
+/*
+ * U-boot - stamp.c STAMP board specific routines
+ *
+ * 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 <asm/mem_init.h>
+#include "bf533-stamp.h"
+
+#define STATUS_LED_OFF 0
+#define STATUS_LED_ON  1
+
+#ifdef CONFIG_SHOW_BOOT_PROGRESS
+# define SHOW_BOOT_PROGRESS(arg)	show_boot_progress(arg)
+#else
+# define SHOW_BOOT_PROGRESS(arg)
+#endif
+
+int checkboard(void)
+{
+#if (BFIN_CPU == ADSP_BF531)
+	printf("CPU:   ADSP BF531 Rev.: 0.%d\n", *pCHIPID >> 28);
+#elif (BFIN_CPU == ADSP_BF532)
+	printf("CPU:   ADSP BF532 Rev.: 0.%d\n", *pCHIPID >> 28);
+#else
+	printf("CPU:   ADSP BF533 Rev.: 0.%d\n", *pCHIPID >> 28);
+#endif
+	printf("Board: ADI BF533 Stamp board\n");
+	printf("       Support: http://blackfin.uclinux.org/\n");
+	return 0;
+}
+
+long int initdram(int board_type)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+#ifdef DEBUG
+	printf("SDRAM attributes:\n");
+	printf
+	    ("  tRCD:%d Cycles; tRP:%d Cycles; tRAS:%d Cycles; tWR:%d Cycles; "
+	     "CAS Latency:%d cycles\n", (SDRAM_tRCD >> 15), (SDRAM_tRP >> 11),
+	     (SDRAM_tRAS >> 6), (SDRAM_tWR >> 19), (SDRAM_CL >> 2));
+	printf("SDRAM Begin: 0x%x\n", CFG_SDRAM_BASE);
+	printf("Bank size = %d MB\n", 128);
+#endif
+	gd->bd->bi_memstart = CFG_SDRAM_BASE;
+	gd->bd->bi_memsize = CFG_MAX_RAM_SIZE;
+	return (gd->bd->bi_memsize);
+}
+
+void swap_to(int device_id)
+{
+
+	if (device_id == ETHERNET) {
+		*pFIO_DIR = PF0;
+		__builtin_bfin_ssync();
+		*pFIO_FLAG_S = PF0;
+		__builtin_bfin_ssync();
+	} else if (device_id == FLASH) {
+		*pFIO_DIR = (PF4 | PF3 | PF2 | PF1 | PF0);
+		*pFIO_FLAG_S = (PF4 | PF3 | PF2);
+		*pFIO_MASKA_D = (PF8 | PF6 | PF5);
+		*pFIO_MASKB_D = (PF7);
+		*pFIO_POLAR = (PF8 | PF6 | PF5);
+		*pFIO_EDGE = (PF8 | PF7 | PF6 | PF5);
+		*pFIO_INEN = (PF8 | PF7 | PF6 | PF5);
+		*pFIO_FLAG_D = (PF4 | PF3 | PF2);
+		__builtin_bfin_ssync();
+	} else {
+		printf("Unknown bank to switch\n");
+	}
+
+	return;
+}
+
+#if defined(CONFIG_MISC_INIT_R)
+/* miscellaneous platform dependent initialisations */
+int misc_init_r(void)
+{
+	int i;
+	int cf_stat = 0;
+
+	/* Check whether CF card is inserted */
+	*pFIO_EDGE = FIO_EDGE_CF_BITS;
+	*pFIO_POLAR = FIO_POLAR_CF_BITS;
+	for (i = 0; i < 0x300; i++)
+		asm("nop;");
+
+	if ((*pFIO_FLAG_S) & CF_STAT_BITS) {
+		cf_stat = 0;
+	} else {
+		cf_stat = 1;
+	}
+
+	*pFIO_EDGE = FIO_EDGE_BITS;
+	*pFIO_POLAR = FIO_POLAR_BITS;
+
+	if (cf_stat) {
+		printf("Booting from COMPACT flash\n");
+
+		/* Set cycle time for CF */
+		*(volatile unsigned long *)ambctl1 = CF_AMBCTL1VAL;
+
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+		for (i = 0; i < 0x1000; i++)
+			asm("nop;");
+
+		serial_setbrg();
+		ide_init();
+
+		setenv("bootargs", "");
+		setenv("bootcmd",
+		       "fatload ide 0:1 0x1000000 uImage-stamp;bootm 0x1000000;bootm 0x20100000");
+	} else {
+		printf("Booting from FLASH\n");
+	}
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_STAMP_CF
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+	/*
+	 * Set PF1 PF0 respectively to 0 1 to divert address
+	 * to the expansion memory banks
+	 */
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	__builtin_bfin_ssync();
+
+	*(addr) = val;
+	__builtin_bfin_ssync();
+
+	/* Setback PF1 PF0 to 0 0 to address external
+	 * memory banks  */
+	*(volatile unsigned short *)pFIO_FLAG_C = CF_PF1_PF0;
+	__builtin_bfin_ssync();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+	volatile unsigned char c;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	__builtin_bfin_ssync();
+
+	c = *(addr);
+	__builtin_bfin_ssync();
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	__builtin_bfin_ssync();
+
+	return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+	int i;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	__builtin_bfin_ssync();
+
+	for (i = 0; i < words; i++) {
+		*(sect_buf + i) = *(addr);
+		__builtin_bfin_ssync();
+	}
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	__builtin_bfin_ssync();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+	int i;
+
+	*pFIO_FLAG_S = CF_PF0;
+	*pFIO_FLAG_C = CF_PF1;
+	__builtin_bfin_ssync();
+
+	for (i = 0; i < words; i++) {
+		*(addr) = *(sect_buf + i);
+		__builtin_bfin_ssync();
+	}
+
+	*pFIO_FLAG_C = CF_PF1_PF0;
+	__builtin_bfin_ssync();
+}
+#endif
+
+void stamp_led_set(int LED1, int LED2, int LED3)
+{
+	*pFIO_INEN &= ~(PF2 | PF3 | PF4);
+	*pFIO_DIR |= (PF2 | PF3 | PF4);
+
+	if (LED1 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF2;
+	else
+		*pFIO_FLAG_C = PF2;
+	if (LED2 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF3;
+	else
+		*pFIO_FLAG_C = PF3;
+	if (LED3 == STATUS_LED_OFF)
+		*pFIO_FLAG_S = PF4;
+	else
+		*pFIO_FLAG_C = PF4;
+	__builtin_bfin_ssync();
+}
+
+void show_boot_progress(int status)
+{
+	switch (status) {
+	case 1:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_ON);
+		break;
+	case 2:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_OFF);
+		break;
+	case 3:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_ON, STATUS_LED_ON);
+		break;
+	case 4:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_OFF);
+		break;
+	case 5:
+	case 6:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_OFF, STATUS_LED_ON);
+		break;
+	case 7:
+	case 8:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_OFF);
+		break;
+	case 9:
+	case 10:
+	case 11:
+	case 12:
+	case 13:
+	case 14:
+	case 15:
+		stamp_led_set(STATUS_LED_OFF, STATUS_LED_OFF, STATUS_LED_OFF);
+		break;
+	default:
+		stamp_led_set(STATUS_LED_ON, STATUS_LED_ON, STATUS_LED_ON);
+		break;
+	}
+}
diff --git a/board/bf533-stamp/bf533-stamp.h b/board/bf533-stamp/bf533-stamp.h
new file mode 100644
index 0000000..b2b51aa
--- /dev/null
+++ b/board/bf533-stamp/bf533-stamp.h
@@ -0,0 +1,56 @@
+/*
+ * U-boot - stamp.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 __STAMP_H__
+#define __STAMP_H__
+
+extern void init_Flags(void);
+
+extern volatile unsigned long *ambctl0;
+extern volatile unsigned long *ambctl1;
+extern volatile unsigned long *amgctl;
+
+extern unsigned long pll_div_fact;
+extern void serial_setbrg(void);
+
+/* Definitions used in  Compact Flash Boot support */
+#define FIO_EDGE_CF_BITS 	0x0000
+#define FIO_POLAR_CF_BITS 	0x0000
+#define	FIO_EDGE_BITS  		0x1E0
+#define	FIO_POLAR_BITS  	0x160
+
+/* Compact flash status bits in status register */
+#define CF_STAT_BITS 		0x00000060
+
+/* CF Flags used to switch between expansion and external
+ * memory banks
+ */
+#define CF_PF0			0x0001
+#define CF_PF1			0x0002
+#define CF_PF1_PF0		0x0003
+
+#endif
diff --git a/board/bf533-stamp/config.mk b/board/bf533-stamp/config.mk
new file mode 100644
index 0000000..113438b
--- /dev/null
+++ b/board/bf533-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 = 0x07FC0000
diff --git a/board/bf533-stamp/spi.c b/board/bf533-stamp/spi.c
new file mode 100644
index 0000000..1b585aa
--- /dev/null
+++ b/board/bf533-stamp/spi.c
@@ -0,0 +1,472 @@
+/****************************************************************************
+ *  SPI flash driver for M25P64
+ ****************************************************************************/
+#include <common.h>
+#include <linux/ctype.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_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);
+
+/* -------------------
+ * Variables
+ * ------------------- */
+
+/* **************************************************************************
+ *
+ *  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;
+	__builtin_bfin_ssync();
+
+	/*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 PF2 to be the slave select of the SPI */
+	*pSPI_FLG = 0xFB04;
+	*pSPI_BAUD = CONFIG_SPI_BAUD;
+	*pSPI_CTL = spi_setting;
+	__builtin_bfin_ssync();
+}
+
+void SPI_OFF(void)
+{
+
+	*pSPI_CTL = 0x0400;	/* disable SPI */
+	*pSPI_FLG = 0;
+	*pSPI_BAUD = 0;
+	__builtin_bfin_ssync();
+	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)) ;
+	dummyread = *pSPI_RDBR;	/* Read dummy to empty the receive register      */
+
+}
+
+ERROR_CODE Wait_For_WEL(void)
+{
+	int i;
+	char status_register = 0;
+	ERROR_CODE ErrorCode = NO_ERR;	/* tells us if there was an error erasing flash */
+
+	for (i = 0; i < TIMEOUT; i++) {
+		status_register = ReadStatusRegister();
+		if ((status_register & WEL)) {
+			ErrorCode = NO_ERR;	/* tells us if there was an error erasing flash */
+			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;	/* tells us if there was an error erasing flash */
+
+	for (i = 0; i < TIMEOUT; i++) {
+		status_register = ReadStatusRegister();
+		if (!(status_register & Statusbit)) {
+			ErrorCode = NO_ERR;	/* tells us if there was an error erasing flash */
+			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 */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	*pSPI_TDBR = 0;		/*send dummy to receive the status register */
+	__builtin_bfin_ssync();
+	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;
+
+	/* ok */
+	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;	/* tells us if there was an error erasing flash */
+		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;	/* tells us if there was an error erasing flash */
+		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;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();
+	ShiftValue = (ulSectorOff >> 16);	/* Send the highest byte of the 24 bit address at first */
+	*pSPI_TDBR = ShiftValue;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+	ShiftValue = (ulSectorOff >> 8);	/* Send the middle byte of the 24 bit address  at second */
+	*pSPI_TDBR = ShiftValue;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+	*pSPI_TDBR = ulSectorOff;	/* Send the lowest byte of the 24 bit address finally */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+
+	/*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;
+
+	cnData = (char *)pnData;	/* Pointer cast to be able to increment byte wise */
+
+	/* Start SPI interface   */
+	SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));
+
+	*pSPI_TDBR = SPI_READ;	/* Send the read command to SPI device */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+	ShiftValue = (ulStart >> 16);	/* Send the highest byte of the 24 bit address at first */
+	*pSPI_TDBR = ShiftValue;	/* Send the byte to the SPI device */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+	ShiftValue = (ulStart >> 8);	/* Send the middle byte of the 24 bit address  at second */
+	*pSPI_TDBR = ShiftValue;	/* Send the byte to the SPI device */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+	*pSPI_TDBR = ulStart;	/* Send the lowest byte of the 24 bit address finally */
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/* Wait until the instruction has been sent */
+
+	/* 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;	/*send dummy */
+		__builtin_bfin_ssync();
+		while (!(*pSPI_STAT & RXS)) ;
+		*cnData++ = *pSPI_RDBR;	/*read  */
+
+		if ((i >= SECTOR_SIZE) && (i % SECTOR_SIZE == 0))
+			printf(".");
+	}
+
+	SPI_OFF();		/* Turn off the SPI */
+
+	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;	/* tells us if there was an error erasing flash */
+
+	/* 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. */
+		SetupSPI((COMMON_SPI_SETTINGS | TIMOD01));	/* Turns the SPI on */
+	*pSPI_TDBR = SPI_PP;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	ulWAddr = (ulStartAddr >> 16);
+	*pSPI_TDBR = ulWAddr;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	ulWAddr = (ulStartAddr >> 8);
+	*pSPI_TDBR = ulWAddr;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	ulWAddr = ulStartAddr;
+	*pSPI_TDBR = ulWAddr;
+	__builtin_bfin_ssync();
+	Wait_For_SPIF();	/*wait until the instruction has been sent */
+	/* 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;
+		__builtin_bfin_ssync();
+		Wait_For_SPIF();	/*wait until the instruction has been sent */
+		temp++;
+	}
+
+	SPI_OFF();		/* Turns the 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/bf533-stamp/u-boot.lds.S b/board/bf533-stamp/u-boot.lds.S
new file mode 100644
index 0000000..48d55fa
--- /dev/null
+++ b/board/bf533-stamp/u-boot.lds.S
@@ -0,0 +1,153 @@
+/*
+ * 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;    */
+SECTIONS
+{
+  /* Read-only sections, merged into text segment: */
+  . = + SIZEOF_HEADERS;
+  .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/bf533/start.o		(.text)
+    cpu/bf533/start1.o		(.text)
+    cpu/bf533/traps.o		(.text)
+    cpu/bf533/interrupt.o	(.text)
+    cpu/bf533/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/stamp/stamp.o		(.text) */
+
+    . = DEFINED(env_offset) ? env_offset : .;
+    common/environment.o	(.text)
+
+    *(.text)
+    *(.fixup)
+    *(.got1)
+  }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata    :
+  {
+    *(.rodata)
+    *(.rodata1)
+    *(.rodata.str1.4)
+  }
+  .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
+  }
+  _edata  =  .;
+  PROVIDE (edata = .);
+
+  ___u_boot_cmd_start = .;
+  .u_boot_cmd : { *(.u_boot_cmd) }
+  ___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_start = .;
+  .bss       :
+  {
+   *(.sbss) *(.scommon)
+   *(.dynbss)
+   *(.bss)
+   *(COMMON)
+  }
+  _end = . ;
+  PROVIDE (end = .);
+}
+