Update of new NAND code

Patch by Ladislav Michl, 13 Sep 2005

13 files changed, 1622 insertions, 0 deletions

diff --git a/board/netstar/Makefile b/board/netstar/Makefile
new file mode 100644
index 0000000..8ef2189
--- /dev/null
+++ b/board/netstar/Makefile
@@ -0,0 +1,85 @@
+#
+# (C) Copyright 2005
+# Ladislav Michl, 2N Telekomunikace, michl@2n.cz
+#
+# 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	:= netstar.o flash.o nand.o
+SOBJS	:= setup.o crcek.o
+
+gcclibdir := $(shell dirname `$(CC) -print-libgcc-file-name`)
+
+LOAD_ADDR = 0x10400000
+LDSCRIPT = $(TOPDIR)/board/$(BOARDDIR)/eeprom.lds
+
+HOST_CFLAGS = -Wall -pedantic -I$(TOPDIR)/include
+
+all:	$(LIB) eeprom.srec eeprom.bin crcek.srec crcek.bin crcit
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $^
+
+eeprom.srec:	eeprom.o eeprom_start.o
+	$(LD) -T $(LDSCRIPT) -g -Ttext $(LOAD_ADDR) \
+		-o $(<:.o=) -e $(<:.o=) $^ \
+		-L../../examples -lstubs \
+		-L../../lib_generic -lgeneric \
+		-L$(gcclibdir) -lgcc
+	$(OBJCOPY) -O srec $(<:.o=) $@
+
+eeprom.bin:	eeprom.srec
+	$(OBJCOPY) -I srec -O binary $< $@ 2>/dev/null
+
+crcek.srec:	crcek.o
+	$(LD) -g -Ttext 0x00000000 \
+		-o $(<:.o=) -e $(<:.o=) $^
+	$(OBJCOPY) -O srec $(<:.o=) $@
+
+crcek.bin:	crcek.srec
+	$(OBJCOPY) -I srec -O binary $< $@ 2>/dev/null
+
+crcit:		crcit.o crc32.o
+	$(HOSTCC) $(HOST_CFLAGS) -o $@ $^
+
+crcit.o:	crcit.c
+	$(HOSTCC) $(HOST_CFLAGS) -c $<
+
+crc32.o:	$(TOPDIR)/tools/crc32.c
+	$(HOSTCC) $(HOST_CFLAGS) -DUSE_HOSTCC -c $<
+
+clean:
+	rm -f $(SOBJS) $(OBJS) eeprom eeprom.srec eeprom.bin \
+		crcek crcek.srec crcek.bin
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/netstar/config.mk b/board/netstar/config.mk
new file mode 100644
index 0000000..8b73e97
--- /dev/null
+++ b/board/netstar/config.mk
@@ -0,0 +1,11 @@
+#
+# Linux-Kernel is expected to be at 1000'8000,
+# entry 1000'8000 (mem base + reserved)
+#
+# We load ourself to internal RAM at 2001'2000
+# Check map file when changing TEXT_BASE.
+# Everything has fit into 192kB internal SRAM!
+#
+
+# XXX TEXT_BASE = 0x20012000
+TEXT_BASE = 0x13FC0000
diff --git a/board/netstar/crcek.S b/board/netstar/crcek.S
new file mode 100644
index 0000000..6ca4d11
--- /dev/null
+++ b/board/netstar/crcek.S
@@ -0,0 +1,177 @@
+/**
+ * (C) Copyright 2005
+ * 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2.
+ *
+ * Image layout looks like following:
+ *	u32 - size
+ *	u32 - version
+ *	... - data
+ *	u32 - crc32
+ */
+
+#include "crcek.h"
+
+/**
+ * do_crc32 - calculate CRC32 of given buffer
+ * r0 - crc
+ * r1 - pointer to buffer
+ * r2 - buffer len
+ */
+	.macro	do_crc32
+	ldr	r5, FFFFFFFF
+	eor	r0, r0, r5
+	adr	r3, CRC32_TABLE
+1:
+	ldrb    r4, [r1], #1
+	eor	r4, r4, r0
+	and	r4, r4, #0xff
+	ldr	r4, [r3, r4, lsl#2]
+	eor	r0, r4, r0, lsr#8
+	subs	r2, r2, #0x1
+	bne 	1b
+	eor	r0, r0, r5
+	.endm
+
+	.macro crcuj, offset, size
+	mov	r0, #0
+	ldr	r1, \offset
+	ldr	r2, [r1]
+	cmp	r2, r0		@ no data, no problem
+	beq	2f
+	tst	r2, #3		@ unaligned size
+	bne	2f
+	ldr	r3, \size
+	cmp	r2, r3		@ bogus size
+	bhi	2f
+	add	r1, r1, #4
+	do_crc32
+	ldr	r1, [r1]
+2:
+	cmp	r0, r1
+	.endm
+
+	.macro wait, reg
+	mov	\reg, #0x1000
+3:
+	subs	\reg, \reg, #0x1
+	bne 	3b
+
+	.endm
+.text
+.globl crcek
+crcek:
+	b	crc2_bad
+	mov	r6, #0
+	crcuj	_LOADER1_OFFSET, _LOADER_SIZE
+	bne	crc1_bad
+	orr	r6, r6, #1
+crc1_bad:
+	crcuj	_LOADER2_OFFSET, _LOADER_SIZE
+	bne	crc2_bad
+	orr	r6, r6, #2
+crc2_bad:
+	ldr	r3, _LOADER1_OFFSET
+	ldr	r4, _LOADER2_OFFSET
+	b	boot_2nd
+	tst	r6, #3
+	beq	one_is_bad	@ one of them (or both) has bad crc
+	ldr	r1, [r3, #4]
+	ldr	r2, [r4, #4]
+	cmp	r1, r2		@ boot 2nd loader if versions differ
+	beq	boot_1st
+	b	boot_2nd
+one_is_bad:
+	tst	r6, #1
+	bne	boot_1st
+	tst	r6, #2
+	bne	boot_2nd
+@ We are doomed, so let user know.
+	ldr	r0, GPIO_BASE	@ configure GPIO pins
+	ldr	r1, GPIO_DIRECTION
+	strh	r1, [r0, #0x08]
+blink_loop:
+	mov	r1, #0x08
+	strh    r1, [r0, #0x04]
+	wait	r3
+	mov	r1, #0x10
+	strh    r1, [r0, #0x04]
+	wait	r3
+	b blink_loop
+boot_1st:
+	add	pc, r3, #8
+boot_2nd:
+	add	pc, r4, #8
+
+_LOADER_SIZE:
+	.word LOADER_SIZE - 8	@ minus size and crc32
+_LOADER1_OFFSET:
+	.word LOADER1_OFFSET
+_LOADER2_OFFSET:
+	.word LOADER2_OFFSET
+
+FFFFFFFF:
+	.word 0xffffffff
+CRC32_TABLE:
+	.word 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419
+	.word 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4
+	.word 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07
+	.word 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de
+	.word 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856
+	.word 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9
+	.word 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4
+	.word 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b
+	.word 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3
+	.word 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a
+	.word 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599
+	.word 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924
+	.word 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190
+	.word 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f
+	.word 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e
+	.word 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01
+	.word 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed
+	.word 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950
+	.word 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3
+	.word 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2
+	.word 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a
+	.word 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5
+	.word 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010
+	.word 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f
+	.word 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17
+	.word 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6
+	.word 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615
+	.word 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8
+	.word 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344
+	.word 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb
+	.word 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a
+	.word 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5
+	.word 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1
+	.word 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c
+	.word 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef
+	.word 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236
+	.word 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe
+	.word 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31
+	.word 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c
+	.word 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713
+	.word 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b
+	.word 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242
+	.word 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1
+	.word 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c
+	.word 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278
+	.word 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7
+	.word 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66
+	.word 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9
+	.word 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605
+	.word 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8
+	.word 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b
+	.word 0x2d02ef8d
+
+GPIO_BASE:
+	.word 0xfffce000
+GPIO_DIRECTION:
+	.word 0x0000ffe7
+
+.end
diff --git a/board/netstar/crcek.h b/board/netstar/crcek.h
new file mode 100644
index 0000000..30c0860
--- /dev/null
+++ b/board/netstar/crcek.h
@@ -0,0 +1,3 @@
+#define LOADER_SIZE	(448 * 1024)
+#define LOADER1_OFFSET	(128 * 1024)
+#define LOADER2_OFFSET	(LOADER1_OFFSET + LOADER_SIZE)
diff --git a/board/netstar/crcit.c b/board/netstar/crcit.c
new file mode 100644
index 0000000..f6d3066
--- /dev/null
+++ b/board/netstar/crcit.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2005
+ * 2N Telekomunikace, Ladislav Michl <michl@2n.cz>
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "crcek.h"
+
+extern unsigned long crc32(unsigned long, const unsigned char *, unsigned int);
+
+uint32_t data[LOADER_SIZE/4 + 3];
+
+int doit(char *path, unsigned version)
+{
+	uint32_t *p;
+	ssize_t size;
+	int fd;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1) {
+		perror("Error opening file");
+		return EXIT_FAILURE;
+	}
+	p = data + 2;
+	size = read(fd, p, LOADER_SIZE + 4);
+	if (size == -1) {
+		perror("Error reading file");
+		return EXIT_FAILURE;
+	}
+	if (size > LOADER_SIZE) {
+		fprintf(stderr, "File too large\n");
+		return EXIT_FAILURE;
+	}
+	size = (((size - 1) >> 2) + 1) << 2;
+	data[0] = size + 4;	/* add size of version field */
+	data[1] = version;
+	data[(size >> 2) + 2] = crc32(0, (unsigned char *)(data + 1), data[0]);
+	close(fd);
+
+	if (write(STDOUT_FILENO, data, size + 3*4) == -1) {
+		perror("Error writing file");
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	if (argc == 2) {
+		return doit(argv[1], 0);
+	} else if ((argc == 4) && (strcmp(argv[1], "-v") == 0)) {
+		char *endptr, *nptr = argv[2];
+		unsigned ver = strtoul(nptr, &endptr, 0);
+		if (nptr != '\0' && endptr == '\0')
+			return doit(argv[3], ver);
+	}
+	fprintf(stderr, "Usage: crcit [-v version] <image>\n");
+
+	return EXIT_FAILURE;
+}
diff --git a/board/netstar/eeprom.c b/board/netstar/eeprom.c
new file mode 100644
index 0000000..fef3822
--- /dev/null
+++ b/board/netstar/eeprom.c
@@ -0,0 +1,215 @@
+/*
+ * (C) Copyright 2005
+ * Ladislav Michl, 2N Telekomunikace, michl@2n.cz
+ *
+ * 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 version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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
+ *
+ * Some code shamelessly stolen back from Robin Getz.
+ */
+
+#define DEBUG
+
+#include <common.h>
+#include <exports.h>
+#include "../drivers/smc91111.h"
+
+#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE
+
+static u16 read_eeprom_reg(u16 reg)
+{
+	int timeout;
+
+	SMC_SELECT_BANK(2);
+	SMC_outw(reg, PTR_REG);
+
+	SMC_SELECT_BANK(1);
+	SMC_outw(SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD,
+		 CTL_REG);
+	timeout = 100;
+	while((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout)
+		udelay(100);
+	if (timeout == 0) {
+		printf("Timeout Reading EEPROM register %02x\n", reg);
+		return 0;
+	}
+
+	return SMC_inw (GP_REG);
+}
+
+static int write_eeprom_reg(u16 value, u16 reg)
+{
+	int timeout;
+
+	SMC_SELECT_BANK(2);
+	SMC_outw(reg, PTR_REG);
+
+	SMC_SELECT_BANK(1);
+	SMC_outw(value, GP_REG);
+	SMC_outw(SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG);
+	timeout = 100;
+	while ((SMC_inw(CTL_REG) & CTL_STORE) && --timeout)
+		udelay (100);
+	if (timeout == 0) {
+		printf("Timeout Writing EEPROM register %02x\n", reg);
+		return 0;
+	}
+
+	return 1;
+}
+
+static int write_data(u16 *buf, int len)
+{
+	u16 reg = 0x23;
+
+	while (len--)
+		write_eeprom_reg(*buf++, reg++);
+
+	return 0;
+}
+
+static int verify_macaddr(char *s)
+{
+	u16 reg;
+	int i, err = 0;
+
+	printf("MAC Address: ");
+	err = i = 0;
+	for (i = 0; i < 3; i++) {
+		reg = read_eeprom_reg(0x20 + i);
+		printf("%02x:%02x%c", reg & 0xff, reg >> 8, i != 2 ? ':' : '\n');
+		if (s)
+			err |= reg != ((u16 *)s)[i];
+	}
+
+	return err ? 0 : 1;
+}
+
+static int set_mac(char *s)
+{
+	int i;
+	char *e, eaddr[6];
+
+	/* turn string into mac value */
+	for (i = 0; i < 6; i++) {
+		eaddr[i] = simple_strtoul(s, &e, 16);
+		s = (*e) ? e+1 : e;
+	}
+
+	for (i = 0; i < 3; i++)
+		write_eeprom_reg(*(((u16 *)eaddr) + i), 0x20 + i);
+
+	return 0;
+}
+
+static int parse_element(char *s, unsigned char *buf, int len)
+{
+	int cnt;
+	char *p, num[3];
+	unsigned char id;
+
+	id = simple_strtoul(s, &p, 16);
+	if (*p++ != ':')
+		return -1;
+	cnt = 2;
+	num[2] = 0;
+	for (; *p; p += 2) {
+		if (p[1] == 0)
+			return -2;
+		if (cnt + 3 > len)
+			return -3;
+		num[0] = p[0];
+		num[1] = p[1];
+		buf[cnt++] = simple_strtoul(num, NULL, 16);
+	}
+	buf[0] = id;
+	buf[1] = cnt - 2;
+
+	return cnt;
+}
+
+extern int crcek(void);
+
+int eeprom(int argc, char *argv[])
+{
+	int i, len, ret;
+	unsigned char buf[58], *p;
+
+	app_startup(argv);
+	if (get_version() != XF_VERSION) {
+		printf("Wrong XF_VERSION.\n");
+		printf("Application expects ABI version %d\n", XF_VERSION);
+		printf("Actual U-Boot ABI version %d\n", (int)get_version());
+		return 1;
+	}
+
+	return crcek();
+
+	if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) {
+		printf("SMSC91111 not found.\n");
+		return 2;
+	}
+
+	/* Called without parameters - print MAC address */
+	if (argc < 2) {
+		verify_macaddr(NULL);
+		return 0;
+	}
+
+	/* Print help message */
+	if (argv[1][1] == 'h') {
+		printf("VoiceBlue EEPROM writer\n");
+		printf("Built: %s at %s\n", __DATE__ , __TIME__ );
+		printf("Usage:\n\t<mac_address> [<element_1>] [<...>]\n");
+		return 0;
+	}
+
+	/* Try to parse information elements */
+	len = sizeof(buf);
+	p = buf;
+	for (i = 2; i < argc; i++) {
+		ret = parse_element(argv[i], p, len);
+		switch (ret) {
+		case -1:
+			printf("Element %d: malformed\n", i - 1);
+			return 3;
+		case -2:
+			printf("Element %d: odd character count\n", i - 1);
+			return 3;
+		case -3:
+			printf("Out of EEPROM memory\n");
+			return 3;
+		default:
+			p += ret;
+			len -= ret;
+		}
+	}
+
+	/* First argument (MAC) is mandatory */
+	set_mac(argv[1]);
+	if (verify_macaddr(argv[1])) {
+		printf("*** MAC address does not match! ***\n");
+		return 4;
+	}
+
+	while (len--)
+		*p++ = 0;
+
+	write_data((u16 *)buf, sizeof(buf) >> 1);
+
+	return 0;
+}
diff --git a/board/netstar/eeprom.lds b/board/netstar/eeprom.lds
new file mode 100644
index 0000000..317550d
--- /dev/null
+++ b/board/netstar/eeprom.lds
@@ -0,0 +1,51 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ * (C) Copyright 2005
+ * Ladislav Michl, 2N Telekomunikace, <michl@2n.cz>
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = ALIGN(4);
+	.text      :
+	{
+	  eeprom_start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}
diff --git a/board/netstar/eeprom_start.S b/board/netstar/eeprom_start.S
new file mode 100644
index 0000000..75d9f05
--- /dev/null
+++ b/board/netstar/eeprom_start.S
@@ -0,0 +1,177 @@
+/*
+ * Copyright (c) 2005  2N Telekomunikace
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ */
+
+.globl _start
+_start:	b       eeprom
+
+#include "crcek.h"
+
+/**
+ * do_crc32 - calculate CRC32 of given buffer
+ * r0 - crc
+ * r1 - pointer to buffer
+ * r2 - buffer len
+ */
+	.macro	do_crc32
+	ldr	r5, FFFFFFFF
+	eor	r0, r0, r5
+	adr	r3, CRC32_TABLE
+1:
+	ldrb    r4, [r1], #1
+	eor	r4, r4, r0
+	and	r4, r4, #0xff
+	ldr	r4, [r3, r4, lsl#2]
+	eor	r0, r4, r0, lsr#8
+	subs	r2, r2, #0x1
+	bne 	1b
+	eor	r0, r0, r5
+	.endm
+
+	.macro crcuj, offset, size
+	ldr	r1, \offset
+	ldr	r2, [r1]
+	cmp	r2, #0		@ no data, no problem
+	beq	2f
+	mov     r7, #1
+	tst	r2, #3		@ unaligned size
+	bne	2f
+	mov     r7, #2
+	ldr	r0, \size
+	cmp	r2, r0		@ bogus size
+	bhi	2f
+	mov     r7, #3
+	add	r1, r1, #4
+	mov	r0, #0
+	do_crc32
+	ldr	r1, [r1]
+2:
+	cmp	r0, r1
+	.endm
+
+	.macro wait, reg
+	mov	\reg, #0x1000
+3:
+	subs	\reg, \reg, #0x1
+	bne 	3b
+
+	.endm
+.text
+.globl crcek
+crcek:
+	mov	r6, #0
+@	crcuj	_LOADER1_OFFSET, _LOADER_SIZE
+@	bne	crc1_bad
+@	orr	r6, r6, #1
+crc1_bad:
+	crcuj	_LOADER2_OFFSET, _LOADER_SIZE
+	bne	crc2_bad
+	orr	r6, r6, #2
+crc2_bad:
+@	mov	r0, r6
+	mov     pc, lr
+	ldr	r3, _LOADER1_OFFSET
+	ldr	r4, _LOADER2_OFFSET
+	tst	r6, #3
+	beq	one_is_bad	@ one of them (or both) has bad crc
+	ldr	r1, [r3, #4]
+	ldr	r2, [r4, #4]
+	cmp	r1, r2		@ boot 2nd loader if versions differ
+	beq	boot_1st
+	b	boot_2nd
+one_is_bad:
+	tst	r6, #1
+	bne	boot_1st
+	tst	r6, #2
+	bne	boot_2nd
+@ We are doomed, so let user know.
+	ldr	r0, GPIO_BASE	@ configure GPIO pins
+	ldr	r1, GPIO_DIRECTION
+	strh	r1, [r0, #0x08]
+blink_loop:
+	mov	r1, #0x08
+	strh    r1, [r0, #0x04]
+	wait	r3
+	mov	r1, #0x10
+	strh    r1, [r0, #0x04]
+	wait	r3
+	b blink_loop
+boot_1st:
+	add	pc, r3, #8
+boot_2nd:
+	add	pc, r4, #8
+
+_LOADER_SIZE:
+	.word LOADER_SIZE - 8	@ minus size and crc32
+_LOADER1_OFFSET:
+	.word LOADER1_OFFSET
+_LOADER2_OFFSET:
+	.word LOADER2_OFFSET
+
+FFFFFFFF:
+	.word 0xffffffff
+CRC32_TABLE:
+	.word 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419
+	.word 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4
+	.word 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07
+	.word 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de
+	.word 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856
+	.word 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9
+	.word 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4
+	.word 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b
+	.word 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3
+	.word 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a
+	.word 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599
+	.word 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924
+	.word 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190
+	.word 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f
+	.word 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e
+	.word 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01
+	.word 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed
+	.word 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950
+	.word 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3
+	.word 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2
+	.word 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a
+	.word 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5
+	.word 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010
+	.word 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f
+	.word 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17
+	.word 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6
+	.word 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615
+	.word 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8
+	.word 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344
+	.word 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb
+	.word 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a
+	.word 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5
+	.word 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1
+	.word 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c
+	.word 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef
+	.word 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236
+	.word 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe
+	.word 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31
+	.word 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c
+	.word 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713
+	.word 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b
+	.word 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242
+	.word 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1
+	.word 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c
+	.word 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278
+	.word 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7
+	.word 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66
+	.word 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9
+	.word 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605
+	.word 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8
+	.word 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b
+	.word 0x2d02ef8d
+
+GPIO_BASE:
+	.word 0xfffce000
+GPIO_DIRECTION:
+	.word 0x0000ffe7
+
+.end
diff --git a/board/netstar/flash.c b/board/netstar/flash.c
new file mode 100644
index 0000000..f555c0c
--- /dev/null
+++ b/board/netstar/flash.c
@@ -0,0 +1,343 @@
+/*
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * (C) Copyright 2005
+ * 2N Telekomunikace, a.s. <www.2n.cz>
+ * Ladislav Michl <michl@2n.cz>
+ *
+ * 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>
+
+/*#if 0 */
+#if (PHYS_SDRAM_1_SIZE != SZ_32M)
+
+#include "crcek.h"
+
+#if (CFG_MAX_FLASH_BANKS > 1)
+#error There is always only _one_ flash chip
+#endif
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+#define CMD_READ_ARRAY		0x000000f0
+#define CMD_UNLOCK1		0x000000aa
+#define CMD_UNLOCK2		0x00000055
+#define CMD_ERASE_SETUP		0x00000080
+#define CMD_ERASE_CONFIRM	0x00000030
+#define CMD_PROGRAM		0x000000a0
+#define CMD_UNLOCK_BYPASS	0x00000020
+
+#define MEM_FLASH_ADDR1		(*(volatile u16 *)(CFG_FLASH_BASE + (0x00000555 << 1)))
+#define MEM_FLASH_ADDR2		(*(volatile u16 *)(CFG_FLASH_BASE + (0x000002aa << 1)))
+
+#define BIT_ERASE_DONE		0x00000080
+#define BIT_RDY_MASK		0x00000080
+#define BIT_PROGRAM_ERROR	0x00000020
+#define BIT_TIMEOUT		0x80000000	/* our flag */
+
+/*-----------------------------------------------------------------------
+ */
+
+ulong flash_init(void)
+{
+	int i;
+
+	flash_info[0].flash_id = (AMD_MANUFACT & FLASH_VENDMASK) |
+				 (AMD_ID_LV800B & FLASH_TYPEMASK);
+	flash_info[0].size = PHYS_FLASH_1_SIZE;
+	flash_info[0].sector_count = CFG_MAX_FLASH_SECT;
+	memset(flash_info[0].protect, 0, CFG_MAX_FLASH_SECT);
+
+	for (i = 0; i < flash_info[0].sector_count; i++) {
+		switch (i) {
+		case 0: /* 16kB */
+			flash_info[0].start[0] = CFG_FLASH_BASE;
+			break;
+		case 1: /* 8kB */
+			flash_info[0].start[1] = CFG_FLASH_BASE + 0x4000;
+			break;
+		case 2: /* 8kB */
+			flash_info[0].start[2] = CFG_FLASH_BASE + 0x4000 +
+						 0x2000;
+			break;
+		case 3: /* 32 KB */
+			flash_info[0].start[3] = CFG_FLASH_BASE + 0x4000 +
+						 2 * 0x2000;
+			break;
+		case 4:
+			flash_info[0].start[4] = CFG_FLASH_BASE + 0x4000 +
+						 2 * 0x2000 + 0x8000;
+			break;
+		default: /* 64kB */
+			flash_info[0].start[i] = flash_info[0].start[i-1] +
+						 0x10000;
+			break;
+		}
+	}
+
+	/* U-Boot */
+	flash_protect(FLAG_PROTECT_SET,
+		      LOADER1_OFFSET,
+		      LOADER1_OFFSET + LOADER_SIZE - 1, flash_info);
+	/* Protect crcek, env and r_env as well */
+	flash_protect(FLAG_PROTECT_SET, 0, 0x8000 - 1, flash_info);
+
+	return flash_info[0].size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info(flash_info_t *info)
+{
+	int i;
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case (AMD_MANUFACT & FLASH_VENDMASK):
+		puts("AMD: ");
+		break;
+	default:
+		puts("Unknown vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case (AMD_ID_LV800B & FLASH_TYPEMASK):
+		puts("AM29LV800BB (8Mb)\n");
+		break;
+	default:
+		puts("Unknown chip type\n");
+		return;
+	}
+
+	printf("  Size: %ld MB in %d sectors\n",
+	       info->size >> 20, info->sector_count);
+
+	puts("  Sector start addresses:");
+	for (i = 0; i < info->sector_count; i++) {
+		if ((i % 5) == 0)
+			puts("\n   ");
+
+		printf(" %08lX%s", info->start[i],
+		       info->protect[i] ? " (RO)" : "     ");
+	}
+	puts("\n");
+}
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase(flash_info_t *info, int s_first, int s_last)
+{
+	ushort result;
+	int prot, sect;
+	int rc = ERR_OK;
+
+	/* first look for protection bits */
+
+	if (info->flash_id == FLASH_UNKNOWN)
+		return ERR_UNKNOWN_FLASH_TYPE;
+
+	if ((s_first < 0) || (s_first > s_last))
+		return ERR_INVAL;
+
+	if ((info->flash_id & FLASH_VENDMASK) !=
+	    (AMD_MANUFACT & FLASH_VENDMASK))
+		return ERR_UNKNOWN_FLASH_VENDOR;
+
+	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
+		putc('\n');
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last && !ctrlc (); sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			vu_short *addr = (vu_short *) (info->start[sect]);
+
+			/* arm simple, non interrupt dependent timer */
+			reset_timer_masked();
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			MEM_FLASH_ADDR1 = CMD_ERASE_SETUP;
+
+			MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+			MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+			*addr = CMD_ERASE_CONFIRM;
+
+			/* wait until flash is ready */
+			while (1) {
+				result = *addr;
+
+				/* check timeout */
+				if (get_timer_masked() > CFG_FLASH_ERASE_TOUT) {
+					MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+					rc = ERR_TIMOUT;
+					break;
+				}
+
+				if ((result & 0xfff) & BIT_ERASE_DONE)
+					break;
+
+				if ((result & 0xffff) & BIT_PROGRAM_ERROR) {
+					rc = ERR_PROG_ERROR;
+					break;
+				}
+			}
+
+			MEM_FLASH_ADDR1 = CMD_READ_ARRAY;
+
+			if (rc != ERR_OK)
+				goto out;
+
+			putc('.');
+		}
+	}
+out:
+	/* allow flash to settle - wait 10 ms */
+	udelay_masked(10000);
+
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash
+ */
+
+volatile static int write_hword(flash_info_t *info, ulong dest, ushort data)
+{
+	vu_short *addr = (vu_short *) dest;
+	ushort result;
+	int rc = ERR_OK;
+
+	/* check if flash is (sufficiently) erased */
+	result = *addr;
+	if ((result & data) != data)
+		return ERR_NOT_ERASED;
+
+	MEM_FLASH_ADDR1 = CMD_UNLOCK1;
+	MEM_FLASH_ADDR2 = CMD_UNLOCK2;
+	MEM_FLASH_ADDR1 = CMD_PROGRAM;
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked();
+
+	/* wait until flash is ready */
+	while (1) {
+		result = *addr;
+
+		/* check timeout */
+		if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+			rc = ERR_TIMOUT;
+			break;
+		}
+
+		if ((result & 0x80) == (data & 0x80))
+			break;
+
+		if ((result & 0xffff) & BIT_PROGRAM_ERROR) {
+			result = *addr;
+
+			if ((result & 0x80) != (data & 0x80))
+				rc = ERR_PROG_ERROR;
+		}
+	}
+
+	*addr = CMD_READ_ARRAY;
+
+	if (*addr != data)
+		rc = ERR_PROG_ERROR;
+
+	return rc;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash.
+ */
+
+int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp;
+	int l;
+	int i, rc;
+	ushort data;
+
+	wp = (addr & ~1);	/* get lower word aligned address */
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i = 0, cp = wp; i < l; ++i, ++cp)
+			data = (data >> 8) | (*(uchar *) cp << 8);
+		for (; i < 2 && cnt > 0; ++i) {
+			data = (data >> 8) | (*src++ << 8);
+			--cnt;
+			++cp;
+		}
+		for (; cnt == 0 && i < 2; ++i, ++cp)
+			data = (data >> 8) | (*(uchar *) cp << 8);
+
+		if ((rc = write_hword(info, wp, data)) != 0)
+			return (rc);
+		wp += 2;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	while (cnt >= 2) {
+		data = *((vu_short *) src);
+		if ((rc = write_hword(info, wp, data)) != 0)
+			return (rc);
+		src += 2;
+		wp += 2;
+		cnt -= 2;
+	}
+
+	if (cnt == 0)
+		return ERR_OK;
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i = 0, cp = wp; i < 2 && cnt > 0; ++i, ++cp) {
+		data = (data >> 8) | (*src++ << 8);
+		--cnt;
+	}
+	for (; i < 2; ++i, ++cp)
+		data = (data >> 8) | (*(uchar *) cp << 8);
+
+	return write_hword(info, wp, data);
+}
+
+#endif
diff --git a/board/netstar/nand.c b/board/netstar/nand.c
new file mode 100644
index 0000000..e5b7f33
--- /dev/null
+++ b/board/netstar/nand.c
@@ -0,0 +1,64 @@
+/*
+ * (C) Copyright 2005 2N TELEKOMUNIKACE, Ladislav Michl
+ *
+ * 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>
+
+#if (CONFIG_COMMANDS & CFG_CMD_NAND)
+
+#include <nand.h>
+
+/*
+ *	hardware specific access to control-lines
+ */
+#define	MASK_CLE	0x02
+#define	MASK_ALE	0x04
+
+static void netstar_nand_hwcontrol(struct mtd_info *mtd, int cmd)
+{
+	struct nand_chip *this = mtd->priv;
+	ulong IO_ADDR_W = (ulong) this->IO_ADDR_W;
+
+	IO_ADDR_W &= ~(MASK_ALE|MASK_CLE);
+	switch (cmd) {
+		case NAND_CTL_SETCLE: IO_ADDR_W |= MASK_CLE; break;
+		case NAND_CTL_SETALE: IO_ADDR_W |= MASK_ALE; break;
+	}
+	this->IO_ADDR_W = (void *) IO_ADDR_W;
+}
+
+/*
+ *	chip R/B detection
+ */
+static int netstar_nand_ready(struct mtd_info *mtd)
+{
+	return (*(volatile ushort *)GPIO_DATA_INPUT_REG) & 0x02;
+}
+
+void board_nand_init(struct nand_chip *nand)
+{
+	nand->options = NAND_SAMSUNG_LP_OPTIONS;
+	nand->eccmode = NAND_ECC_SOFT;
+	nand->hwcontrol = netstar_nand_hwcontrol;
+/*	nand->dev_ready = netstar_nand_ready; */
+	nand->chip_delay = 18;
+}
+#endif
diff --git a/board/netstar/netstar.c b/board/netstar/netstar.c
new file mode 100644
index 0000000..62615e5
--- /dev/null
+++ b/board/netstar/netstar.c
@@ -0,0 +1,68 @@
+/*
+ * (C) Copyright 2005 2N TELEKOMUNIKACE, Ladislav Michl
+ *
+ * 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>
+
+int board_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* arch number of NetStar board */
+	/* TODO: use define from asm/mach-types.h */
+	gd->bd->bi_arch_number = 692;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0x10000100;
+
+	return 0;
+}
+
+int dram_init(void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+
+	/* Take the Ethernet controller out of reset and wait
+	 * for the EEPROM load to complete. */
+	*((volatile unsigned short *) GPIO_DATA_OUTPUT_REG) |= 0x80;
+	udelay(10);	/* doesn't work before interrupt_init call */
+	*((volatile unsigned short *) GPIO_DATA_OUTPUT_REG) &= ~0x80;
+	udelay(500);
+
+	return 0;
+}
+
+extern void partition_flash(void);
+
+int misc_init_r(void)
+{
+	return 0;
+}
+
+extern void nand_init(void);
+
+int board_late_init(void)
+{
+	return 0;
+}
diff --git a/board/netstar/setup.S b/board/netstar/setup.S
new file mode 100644
index 0000000..82c0342
--- /dev/null
+++ b/board/netstar/setup.S
@@ -0,0 +1,287 @@
+/*
+ * Board specific setup info
+ *
+ * (C) Copyright 2004 Ales Jindra <jindra@2n.cz>
+ * (C) Copyright 2005 Ladislav Michl <michl@2n.cz>
+ *
+ * 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>
+#include <version.h>
+
+_TEXT_BASE:
+	.word	TEXT_BASE	/* SDRAM load addr from config.mk */
+
+OMAP5910_LPG1_BASE:		.word 0xfffbd000
+OMAP5910_TIPB_SWITCHES_BASE:	.word 0xfffbc800
+OMAP5910_MPU_TC_BASE:		.word 0xfffecc00
+OMAP5910_MPU_CLKM_BASE:		.word 0xfffece00
+OMAP5910_ULPD_PWR_MNG_BASE:	.word 0xfffe0800
+OMAP5910_DPLL1_BASE:		.word 0xfffecf00
+OMAP5910_GPIO_BASE:		.word 0xfffce000
+OMAP5910_MPU_WD_TIMER_BASE:	.word 0xfffec800
+OMAP5910_MPUI_BASE:		.word 0xfffec900
+
+_OMAP5910_ARM_CKCTL:		.word OMAP5910_ARM_CKCTL
+_OMAP5910_ARM_EN_CLK:		.word OMAP5910_ARM_EN_CLK
+
+OMAP5910_MPUI_CTRL:		.word 0x0000ff1b
+
+VAL_EMIFS_CS0_CONFIG:		.word 0x00009090
+VAL_EMIFS_CS1_CONFIG:		.word 0x00003031
+VAL_EMIFS_CS2_CONFIG:		.word 0x0000a0a1
+VAL_EMIFS_CS3_CONFIG:		.word 0x0000c0c0
+VAL_EMIFS_DYN_WAIT:		.word 0x00000000
+/* autorefresh counter 0x246 ((64000000/13.4)-400)/8192) */
+				/*     SLRF       SD_RET     ARE        SDRAM_TYPE   ARCV           SDRAM_FREQUENCY PWD     CLK */
+
+#if (PHYS_SDRAM_1_SIZE == SZ_32M)
+VAL_EMIFF_SDRAM_CONFIG:		.word ((0 << 0) | (0 << 1) | (3 << 2) | (0xf << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
+#else
+VAL_EMIFF_SDRAM_CONFIG:		.word ((0 << 0) | (0 << 1) | (3 << 2) | (0xd << 4) | (0x246 << 8) | (0 << 24) | (0 << 26) | (0 << 27))
+#endif
+
+VAL_EMIFF_SDRAM_CONFIG2:	.word 0x00000003
+VAL_EMIFF_MRS:			.word 0x00000037
+
+/*
+ * GPIO04 - Green LED (Red LED is connected to LED Pulse Generator)
+ * GPIO07 - LAN91C111 reset
+ */
+GPIO_DIRECTION:
+	.word 0x0000ff6f
+/*
+ * Disable everything (green LED is connected via invertor)
+ */
+GPIO_OUTPUT:
+	.word 0x00000010
+
+MUX_CONFIG_BASE:
+	.word 0xfffe1000
+
+MUX_CONFIG_VALUES:
+	.align 4
+	.word 0x00000000	@ FUNC_MUX_CTRL_0
+	.word 0x00000000	@ FUNC_MUX_CTRL_1
+	.word 0x00000000	@ FUNC_MUX_CTRL_2
+	.word 0x00000000	@ FUNC_MUX_CTRL_3
+	.word 0x00000000	@ FUNC_MUX_CTRL_4
+	.word 0x02080480	@ FUNC_MUX_CTRL_5
+	.word 0x0100001c	@ FUNC_MUX_CTRL_6
+	.word 0x0004800b	@ FUNC_MUX_CTRL_7
+	.word 0x10001200	@ FUNC_MUX_CTRL_8
+	.word 0x01201012	@ FUNC_MUX_CTRL_9
+	.word 0x02082248	@ FUNC_MUX_CTRL_A
+	.word 0x00000248	@ FUNC_MUX_CTRL_B
+	.word 0x12240000	@ FUNC_MUX_CTRL_C
+	.word 0x00002000	@ FUNC_MUX_CTRL_D
+	.word 0x00000000	@ PULL_DWN_CTRL_0
+	.word 0x00000800	@ PULL_DWN_CTRL_1
+	.word 0x01801000	@ PULL_DWN_CTRL_2
+	.word 0x00000000	@ PULL_DWN_CTRL_3
+	.word 0x00000000	@ GATE_INH_CTRL_0
+	.word 0x00000000	@ VOLTAGE_CTRL_0
+	.word 0x00000000	@ TEST_DBG_CTRL_0
+	.word 0x00000006	@ MOD_CONF_CTRL_0
+	.word 0x0000eaef	@ COMP_MODE_CTRL_0
+
+MUX_CONFIG_OFFSETS:
+	.align 1
+	.byte 0x00		@ FUNC_MUX_CTRL_0
+	.byte 0x04		@ FUNC_MUX_CTRL_1
+	.byte 0x08		@ FUNC_MUX_CTRL_2
+	.byte 0x10		@ FUNC_MUX_CTRL_3
+	.byte 0x14		@ FUNC_MUX_CTRL_4
+	.byte 0x18		@ FUNC_MUX_CTRL_5
+	.byte 0x1c		@ FUNC_MUX_CTRL_6
+	.byte 0x20		@ FUNC_MUX_CTRL_7
+	.byte 0x24		@ FUNC_MUX_CTRL_8
+	.byte 0x28		@ FUNC_MUX_CTRL_9
+	.byte 0x2c		@ FUNC_MUX_CTRL_A
+	.byte 0x30		@ FUNC_MUX_CTRL_B
+	.byte 0x34		@ FUNC_MUX_CTRL_C
+	.byte 0x38		@ FUNC_MUX_CTRL_D
+	.byte 0x40		@ PULL_DWN_CTRL_0
+	.byte 0x44		@ PULL_DWN_CTRL_1
+	.byte 0x48		@ PULL_DWN_CTRL_2
+	.byte 0x4c		@ PULL_DWN_CTRL_3
+	.byte 0x50		@ GATE_INH_CTRL_0
+	.byte 0x60		@ VOLTAGE_CTRL_0
+	.byte 0x70		@ TEST_DBG_CTRL_0
+	.byte 0x80		@ MOD_CONF_CTRL_0
+	.byte 0x0c		@ COMP_MODE_CTRL_0
+	.byte 0xff
+
+.globl platformsetup
+platformsetup:
+	/* Improve performance a bit... */
+	mrc	p15, 0, r1, c0, c0, 0		@ read C15 ID register
+	mrc	p15, 0, r1, c0, c0, 1		@ read C15 Cache information register
+	mrc	p15, 0, r1, c1, c0, 0		@ read C15 Control register
+	orr	r1, r1, #0x1000			@ enable I-cache, map interrupt vector 0xffff0000
+	mcr	p15, 0, r1, c1, c0, 0		@ write C15 Control register
+	mov	r1, #0x00
+	mcr	p15, 0, r1, c7, c5, 0		@ Flush I-cache
+	nop
+	nop
+	nop
+	nop
+
+	/* Setup clocking mode */
+	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ prepare base of CLOCK unit
+	ldrh	r1, [r0, #0x18]			@ get reset status
+	bic	r1, r1, #(7 << 11)		@ clear clock select
+	orr	r1, r1, #(2 << 11)		@ set synchronous scalable
+	mov	r2, #0				@ set wait counter to 100 clock cycles
+
+icache_loop:
+	cmp	r2, #0x01
+	streqh	r1, [r0, #0x18]
+	add	r2, r2, #0x01
+	cmp	r2, #0x10
+	bne	icache_loop
+	nop
+
+	/* Setup clock divisors */
+	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ base of CLOCK unit
+	ldr	r1, _OMAP5910_ARM_CKCTL
+	orr	r1, r1, #0x2000			@ enable DSP clock
+	strh	r1, [r0, #0x00]			@ setup clock divisors
+
+	/* Setup DPLL to generate requested freq */
+	ldr	r0, OMAP5910_DPLL1_BASE		@ base of DPLL1 register
+	mov	r1, #0x0010			@ set PLL_ENABLE
+	orr	r1, r1, #0x2000			@ set IOB to new locking
+	orr	r1, r1, #(OMAP5910_DPLL_MUL << 7) @ setup multiplier CLKREF
+	orr	r1, r1, #(OMAP5910_DPLL_DIV << 5) @ setup divider CLKREF
+	strh	r1, [r0]			@ write
+
+locking:
+	ldrh	r1, [r0]			@ get DPLL value
+	tst	r1, #0x01
+	beq	locking				@ while LOCK not set
+
+	/* Enable clock */
+	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ base of CLOCK unit
+	mov	r1, #(1 << 10)			@ disable idle mode do not check
+						@ nWAKEUP pin, other remain active
+	strh	r1, [r0, #0x04]
+	ldr	r1, _OMAP5910_ARM_EN_CLK
+	strh	r1, [r0, #0x08]
+	mov	r1, #0x003f			@ FLASH.RP not enabled in idle and
+						@ max delayed ( 32 x CLKIN )
+	strh	r1, [r0, #0x0c]
+
+	/* Configure 5910 pins functions to match our board. */
+	ldr     r0, MUX_CONFIG_BASE
+	adr	r1, MUX_CONFIG_VALUES
+	adr	r2, MUX_CONFIG_OFFSETS
+next_mux_cfg:
+	ldrb	r3, [r2], #1
+	ldr	r4, [r1], #4
+	cmp	r3, #0xff
+	strne	r4, [r0, r3]
+	bne	next_mux_cfg
+
+	/* Configure GPIO pins (also disables Green LED) */
+	ldr	r0, OMAP5910_GPIO_BASE
+	ldr	r1, GPIO_OUTPUT
+	strh    r1, [r0, #0x04]
+	ldr	r1, GPIO_DIRECTION
+	strh	r1, [r0, #0x08]
+
+	/* EnablePeripherals */
+	ldr	r0, OMAP5910_MPU_CLKM_BASE	@ CLOCK unit
+	mov	r1, #0x0001			@ Peripheral enable
+	strh	r1, [r0, #0x14]
+
+	/* Program LED Pulse Generator */
+	ldr	r0, OMAP5910_LPG1_BASE		@ 1st LED Pulse Generator
+	mov	r1, #0x7F			@ Set obscure frequency in
+	strb	r1, [r0, #0x00]			@ LCR
+	mov	r1, #0x01			@ Enable clock (CLK_EN) in
+	strb    r1, [r0, #0x04]			@ PMR
+
+	/* TIPB Lock UART1 */
+	ldr	r0, OMAP5910_TIPB_SWITCHES_BASE	@ prepare base of TIPB switches
+	mov	r1, #1				@ ARM allocated
+	strh	r1, [r0,#0x04]			@ clear IRQ line and status bits
+	strh	r1, [r0,#0x00]
+	ldrh	r1, [r0,#0x04]
+
+	/* Disable watchdog */
+	ldr	r0, OMAP5910_MPU_WD_TIMER_BASE
+	mov	r1, #0xf5
+	strh	r1, [r0, #0x8]
+	mov	r1, #0xa0
+	strh	r1, [r0, #0x8]
+
+	/* Enable MCLK */
+	ldr	r0, OMAP5910_ULPD_PWR_MNG_BASE
+	mov	r1, #0x6
+	strh	r1, [r0, #0x34]
+	strh	r1, [r0, #0x34]
+
+	/* Setup clock divisors */
+	ldr	r0, OMAP5910_ULPD_PWR_MNG_BASE	@ base of ULDPL DPLL1 register
+
+	mov	r1, #0x0010			@ set PLL_ENABLE
+	orr	r1, r1, #0x2000			@ set IOB to new locking
+	strh	r1, [r0]			@ write
+
+ulocking:
+	ldrh	r1, [r0]			@ get DPLL value
+	tst	r1, #1
+	beq	ulocking			@ while LOCK not set
+
+	/* EMIF init */
+	ldr	r0, OMAP5910_MPU_TC_BASE
+	ldrh	r1, [r0, #0x0c]			@ EMIFS_CONFIG_REG
+	bic	r1, r1, #0x0c			@ pwr down disabled, flash WP
+	orr	r1, r1, #0x01
+	str	r1, [r0, #0x0c]
+
+	ldr	r1, VAL_EMIFS_CS0_CONFIG
+	str	r1, [r0, #0x10]			@ EMIFS_CS0_CONFIG
+	ldr	r1, VAL_EMIFS_CS1_CONFIG
+	str	r1, [r0, #0x14]			@ EMIFS_CS1_CONFIG
+	ldr	r1, VAL_EMIFS_CS2_CONFIG
+	str	r1, [r0, #0x18]			@ EMIFS_CS2_CONFIG
+	ldr	r1, VAL_EMIFS_CS3_CONFIG
+	str	r1, [r0, #0x1c]			@ EMIFS_CS3_CONFIG
+	ldr	r1, VAL_EMIFS_DYN_WAIT
+	str	r1, [r0, #0x40]			@ EMIFS_CFG_DYN_WAIT
+
+	/* Setup SDRAM */
+	ldr	r1, VAL_EMIFF_SDRAM_CONFIG
+	str	r1, [r0, #0x20]			@ EMIFF_SDRAM_CONFIG
+	ldr	r1, VAL_EMIFF_SDRAM_CONFIG2
+	str	r1, [r0, #0x3c]			@ EMIFF_SDRAM_CONFIG2
+	ldr	r1, VAL_EMIFF_MRS
+	str	r1, [r0, #0x24]			@ EMIFF_MRS
+	/* SDRAM needs 100us to stabilize */
+	mov	r0, #0x4000
+sdelay:
+	subs	r0, r0, #0x1
+	bne 	sdelay
+
+	/* back to arch calling code */
+	mov	pc, lr
+.end
diff --git a/board/netstar/u-boot.lds b/board/netstar/u-boot.lds
new file mode 100644
index 0000000..8317f72
--- /dev/null
+++ b/board/netstar/u-boot.lds
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  cpu/arm925t/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}