disable minix, separate flash-map driver patch

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@1940 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 282 insertions, 282 deletions

diff --git a/openwrt/target/linux/linux-2.6/config/brcm b/openwrt/target/linux/linux-2.6/config/brcm
index de5bbba10c..2597b336d7 100644
--- a/openwrt/target/linux/linux-2.6/config/brcm
+++ b/openwrt/target/linux/linux-2.6/config/brcm
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
 # Linux kernel version: 2.6.12.5
-# Wed Sep 14 09:36:02 2005
+# Fri Sep 16 22:34:43 2005
 #
 CONFIG_MIPS=y
 # CONFIG_MIPS64 is not set
@@ -978,7 +978,7 @@ CONFIG_XFS_FS=m
 # CONFIG_XFS_QUOTA is not set
 # CONFIG_XFS_SECURITY is not set
 # CONFIG_XFS_POSIX_ACL is not set
-CONFIG_MINIX_FS=m
+# CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
 # CONFIG_QUOTA is not set
 # CONFIG_DNOTIFY is not set
diff --git a/openwrt/target/linux/linux-2.6/patches/brcm/001-bcm947xx.patch b/openwrt/target/linux/linux-2.6/patches/brcm/001-bcm947xx.patch
index 65336bf193..8f45315766 100644
--- a/openwrt/target/linux/linux-2.6/patches/brcm/001-bcm947xx.patch
+++ b/openwrt/target/linux/linux-2.6/patches/brcm/001-bcm947xx.patch
@@ -13030,286 +13030,6 @@ diff -Nur linux-2.6.12.5/arch/mips/pci/pci.c linux-2.6.12.5-brcm/arch/mips/pci/p
  
  		dev->resource[i].start += offset;
  		dev->resource[i].end += offset;
-diff -Nur linux-2.6.12.5/drivers/mtd/maps/Kconfig linux-2.6.12.5-brcm/drivers/mtd/maps/Kconfig
---- linux-2.6.12.5/drivers/mtd/maps/Kconfig	2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-brcm/drivers/mtd/maps/Kconfig	2005-09-16 10:29:18.355564432 +0200
-@@ -357,6 +357,12 @@
- 	  Mapping for the Flaga digital module. If you don't have one, ignore
- 	  this setting.
- 
-+config MTD_BCM47XX
-+	tristate "BCM47xx flash device"
-+	depends on MIPS && MTD_CFI && BCM947XX
-+	help
-+	  Support for the flash chips on the BCM947xx board.
-+	  
- config MTD_BEECH
- 	tristate "CFI Flash device mapped on IBM 405LP Beech"
- 	depends on MTD_CFI && PPC32 && 40x && BEECH
-diff -Nur linux-2.6.12.5/drivers/mtd/maps/Makefile linux-2.6.12.5-brcm/drivers/mtd/maps/Makefile
---- linux-2.6.12.5/drivers/mtd/maps/Makefile	2005-08-15 02:20:18.000000000 +0200
-+++ linux-2.6.12.5-brcm/drivers/mtd/maps/Makefile	2005-09-16 10:29:18.360563672 +0200
-@@ -31,6 +31,7 @@
- obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o
- obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o
- obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o
-+obj-$(CONFIG_MTD_BCM47XX)	+= bcm47xx-flash.o
- obj-$(CONFIG_MTD_SA1100)	+= sa1100-flash.o
- obj-$(CONFIG_MTD_IPAQ)		+= ipaq-flash.o
- obj-$(CONFIG_MTD_SBC_GXX)	+= sbc_gxx.o
-diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-brcm/drivers/mtd/maps/bcm47xx-flash.c
---- linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.12.5-brcm/drivers/mtd/maps/bcm47xx-flash.c	2005-09-16 10:29:18.361563520 +0200
-@@ -0,0 +1,249 @@
-+/*
-+ *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
-+ *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
-+ *
-+ *  original functions for finding root filesystem from Mike Baker 
-+ *
-+ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
-+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
-+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
-+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
-+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
-+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
-+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-+ *
-+ *  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.,
-+ *  675 Mass Ave, Cambridge, MA 02139, USA.
-+ * 
-+ *  Copyright 2001-2003, Broadcom Corporation
-+ *  All Rights Reserved.
-+ * 
-+ *  THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
-+ *  KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
-+ *  SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
-+ *  FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
-+ *
-+ *  $Id: bcm47xx-flash.c,v 1.1 2004/10/21 07:18:31 jolt Exp $
-+ *
-+ *  Flash mapping for BCM947XX boards
-+ */
-+
-+#include <linux/init.h>
-+#include <linux/module.h>
-+#include <linux/types.h>
-+#include <linux/kernel.h>
-+#include <asm/io.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/map.h>
-+#include <linux/mtd/partitions.h>
-+#include <linux/config.h>
-+#include <typedefs.h>
-+#include <bcmutils.h>
-+#include <bcmnvram.h>
-+#include <trxhdr.h>
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size);
-+#endif
-+
-+#define CFE_SIZE 1024*384
-+#define NVRAM_SIZE 1024*128
-+
-+#define WINDOW_ADDR 0x1c000000
-+#define WINDOW_SIZE (0x400000*2)
-+#define BUSWIDTH 2
-+
-+static struct mtd_info *bcm947xx_mtd;
-+
-+static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
-+{
-+#define MIPS_MEMCPY_ALIGN 4
-+	map_word ret;
-+	ssize_t transfer;
-+	ssize_t done = 0;
-+	if ((len >= MIPS_MEMCPY_ALIGN) && (!(from & (MIPS_MEMCPY_ALIGN - 1))) && (!(((unsigned int)to & (MIPS_MEMCPY_ALIGN - 1))))) {
-+		done = len & ~(MIPS_MEMCPY_ALIGN - 1);
-+		memcpy_fromio(to, map->virt + from, done);
-+	}
-+	while (done < len) {
-+		ret = map->read(map, from + done);
-+		transfer = len - done;
-+		if (transfer > map->bankwidth)
-+			transfer = map->bankwidth;
-+		memcpy((void *)((unsigned long)to + done), &ret.x[0], transfer);
-+		done += transfer;
-+	}
-+}
-+
-+static struct map_info bcm947xx_map = {
-+	name: "Physically mapped flash",
-+	size: WINDOW_SIZE,
-+	bankwidth: BUSWIDTH,
-+	phys: WINDOW_ADDR,
-+};
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+
-+static struct mtd_partition bcm947xx_parts[] = {
-+	{ name: "cfe",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
-+	{ name: "linux", offset: 0, size: 0, },
-+	{ name: "rootfs", offset: 0, size: 0, },
-+	{ name: "nvram", offset: 0, size: 0, },
-+	{ name: "OpenWrt", offset: 0, size: 0, },
-+	{ name: NULL, },
-+};
-+
-+static int __init
-+find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
-+{
-+	struct trx_header *trx;
-+	unsigned char buf[512];
-+	int off;
-+	size_t len;
-+
-+	trx = (struct trx_header *) buf;
-+
-+	for (off = (512*1024); off < size; off += mtd->erasesize) {
-+		memset(buf, 0xe5, sizeof(buf));
-+
-+		/*
-+		 * Read into buffer 
-+		 */
-+		if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
-+		    len != sizeof(buf))
-+			continue;
-+
-+		/* found a TRX header */
-+		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
-+			part->offset = le32_to_cpu(trx->offsets[2]) ? : 
-+				le32_to_cpu(trx->offsets[1]);
-+			part->size = le32_to_cpu(trx->len); 
-+
-+			part->size -= part->offset;
-+			part->offset += off;
-+
-+			goto done;
-+		}
-+	}
-+
-+	printk(KERN_NOTICE
-+	       "%s: Couldn't find root filesystem\n",
-+	       mtd->name);
-+	return -1;
-+
-+ done:
-+		return part->size;
-+}
-+
-+struct mtd_partition * __init
-+init_mtd_partitions(struct mtd_info *mtd, size_t size)
-+{
-+
-+	/* boot loader */
-+	bcm947xx_parts[0].offset = 0;
-+	bcm947xx_parts[0].size	 = CFE_SIZE;
-+
-+	/* nvram (old config partition) */
-+	bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
-+	bcm947xx_parts[3].size   = NVRAM_SIZE;
-+
-+	/* Size linux (kernel and rootfs) */
-+	/* do not count the elf loader, which is on one sector */
-+	bcm947xx_parts[1].offset = bcm947xx_parts[0].size + bcm947xx_parts[3].size + mtd->erasesize;
-+	bcm947xx_parts[1].size   = size - NVRAM_SIZE - bcm947xx_parts[0].size - 
-+		bcm947xx_parts[3].size - mtd->erasesize;
-+
-+	/* Find and size rootfs */
-+	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
-+		/* entirely jffs2 */
-+		bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - NVRAM_SIZE; 
-+		bcm947xx_parts[4].name = NULL;
-+	} else {
-+		/* legacy setup */
-+		/* calculate leftover flash, and assign it to the jffs2 partition */
-+		bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + bcm947xx_parts[2].size;
-+		if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
-+			bcm947xx_parts[4].offset += mtd->erasesize - 
-+				(bcm947xx_parts[4].offset % mtd->erasesize);
-+		}
-+		bcm947xx_parts[4].size = size - NVRAM_SIZE - bcm947xx_parts[4].offset;
-+	}
-+
-+	return bcm947xx_parts;
-+}
-+
-+EXPORT_SYMBOL(init_mtd_partitions);
-+#endif
-+
-+int __init init_bcm947xx_map(void)
-+{
-+	size_t size;
-+	int ret = 0;
-+#ifdef CONFIG_MTD_PARTITIONS
-+	struct mtd_partition *parts;
-+	int i;
-+#endif
-+
-+	bcm947xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-+
-+	if (!bcm947xx_map.virt) {
-+		printk("Failed to ioremap\n");
-+		return -EIO;
-+	}
-+	simple_map_init(&bcm947xx_map);
-+	
-+	bcm947xx_map.copy_from = bcm947xx_map_copy_from;
-+	
-+	if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
-+		printk("Failed to do_map_probe\n");
-+		iounmap((void *)bcm947xx_map.virt);
-+		return -ENXIO;
-+	}
-+
-+	bcm947xx_mtd->owner = THIS_MODULE;
-+
-+	size = bcm947xx_mtd->size;
-+
-+	printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", bcm947xx_mtd->size, WINDOW_ADDR);
-+
-+#ifdef CONFIG_MTD_PARTITIONS
-+	parts = init_mtd_partitions(bcm947xx_mtd, size);
-+	for (i = 0; parts[i].name; i++);
-+	ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
-+	if (ret) {
-+		printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
-+		goto fail;
-+	}
-+#endif
-+
-+	return 0;
-+
-+ fail:
-+	if (bcm947xx_mtd)
-+		map_destroy(bcm947xx_mtd);
-+	if (bcm947xx_map.map_priv_1)
-+		iounmap((void *) bcm947xx_map.map_priv_1);
-+	bcm947xx_map.map_priv_1 = 0;
-+	return ret;
-+}
-+
-+void __exit cleanup_bcm947xx_map(void)
-+{
-+#ifdef CONFIG_MTD_PARTITIONS
-+	del_mtd_partitions(bcm947xx_mtd);
-+#endif
-+	map_destroy(bcm947xx_mtd);
-+	iounmap((void *)bcm947xx_map.virt);
-+}
-+
-+module_init(init_bcm947xx_map);
-+module_exit(cleanup_bcm947xx_map);
 diff -Nur linux-2.6.12.5/include/asm-mips/bootinfo.h linux-2.6.12.5-brcm/include/asm-mips/bootinfo.h
 --- linux-2.6.12.5/include/asm-mips/bootinfo.h	2005-08-15 02:20:18.000000000 +0200
 +++ linux-2.6.12.5-brcm/include/asm-mips/bootinfo.h	2005-09-16 10:29:18.415555312 +0200
diff --git a/openwrt/target/linux/linux-2.6/patches/brcm/003-flash-map.patch b/openwrt/target/linux/linux-2.6/patches/brcm/003-flash-map.patch
new file mode 100644
index 0000000000..60675792a0
--- /dev/null
+++ b/openwrt/target/linux/linux-2.6/patches/brcm/003-flash-map.patch
@@ -0,0 +1,280 @@
+diff -Nur linux-2.6.12.5/drivers/mtd/maps/Kconfig linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig
+--- linux-2.6.12.5/drivers/mtd/maps/Kconfig	2005-08-15 02:20:18.000000000 +0200
++++ linux-2.6.12.5-flash/drivers/mtd/maps/Kconfig	2005-09-16 22:27:36.513533784 +0200
+@@ -357,6 +357,12 @@
+ 	  Mapping for the Flaga digital module. If you don't have one, ignore
+ 	  this setting.
+ 
++config MTD_BCM47XX
++	tristate "BCM47xx flash device"
++	depends on MIPS && MTD_CFI && BCM947XX
++	help
++	  Support for the flash chips on the BCM947xx board.
++	  
+ config MTD_BEECH
+ 	tristate "CFI Flash device mapped on IBM 405LP Beech"
+ 	depends on MTD_CFI && PPC32 && 40x && BEECH
+diff -Nur linux-2.6.12.5/drivers/mtd/maps/Makefile linux-2.6.12.5-flash/drivers/mtd/maps/Makefile
+--- linux-2.6.12.5/drivers/mtd/maps/Makefile	2005-08-15 02:20:18.000000000 +0200
++++ linux-2.6.12.5-flash/drivers/mtd/maps/Makefile	2005-09-16 22:27:01.110915800 +0200
+@@ -31,6 +31,7 @@
+ obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o
+ obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o
+ obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o
++obj-$(CONFIG_MTD_BCM47XX)	+= bcm47xx-flash.o
+ obj-$(CONFIG_MTD_SA1100)	+= sa1100-flash.o
+ obj-$(CONFIG_MTD_IPAQ)		+= ipaq-flash.o
+ obj-$(CONFIG_MTD_SBC_GXX)	+= sbc_gxx.o
+diff -Nur linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c linux-2.6.12.5-flash/drivers/mtd/maps/bcm47xx-flash.c
+--- linux-2.6.12.5/drivers/mtd/maps/bcm47xx-flash.c	1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.12.5-flash/drivers/mtd/maps/bcm47xx-flash.c	2005-09-16 22:26:41.470901536 +0200
+@@ -0,0 +1,249 @@
++/*
++ *  Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
++ *  Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
++ *
++ *  original functions for finding root filesystem from Mike Baker 
++ *
++ *  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  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
++ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
++ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
++ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
++ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
++ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
++ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
++ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
++ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
++ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ *  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.,
++ *  675 Mass Ave, Cambridge, MA 02139, USA.
++ * 
++ *  Copyright 2001-2003, Broadcom Corporation
++ *  All Rights Reserved.
++ * 
++ *  THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
++ *  KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
++ *  SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
++ *  FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
++ *
++ *  $Id$
++ *
++ *  Flash mapping for BCM947XX boards
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/kernel.h>
++#include <asm/io.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/map.h>
++#include <linux/mtd/partitions.h>
++#include <linux/config.h>
++#include <typedefs.h>
++#include <bcmutils.h>
++#include <bcmnvram.h>
++#include <trxhdr.h>
++
++#ifdef CONFIG_MTD_PARTITIONS
++extern struct mtd_partition * init_mtd_partitions(struct mtd_info *mtd, size_t size);
++#endif
++
++#define CFE_SIZE 1024*384
++#define NVRAM_SIZE 1024*128
++
++#define WINDOW_ADDR 0x1c000000
++#define WINDOW_SIZE (0x400000*2)
++#define BUSWIDTH 2
++
++static struct mtd_info *bcm947xx_mtd;
++
++static void bcm947xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
++{
++#define MIPS_MEMCPY_ALIGN 4
++	map_word ret;
++	ssize_t transfer;
++	ssize_t done = 0;
++	if ((len >= MIPS_MEMCPY_ALIGN) && (!(from & (MIPS_MEMCPY_ALIGN - 1))) && (!(((unsigned int)to & (MIPS_MEMCPY_ALIGN - 1))))) {
++		done = len & ~(MIPS_MEMCPY_ALIGN - 1);
++		memcpy_fromio(to, map->virt + from, done);
++	}
++	while (done < len) {
++		ret = map->read(map, from + done);
++		transfer = len - done;
++		if (transfer > map->bankwidth)
++			transfer = map->bankwidth;
++		memcpy((void *)((unsigned long)to + done), &ret.x[0], transfer);
++		done += transfer;
++	}
++}
++
++static struct map_info bcm947xx_map = {
++	name: "Physically mapped flash",
++	size: WINDOW_SIZE,
++	bankwidth: BUSWIDTH,
++	phys: WINDOW_ADDR,
++};
++
++#ifdef CONFIG_MTD_PARTITIONS
++
++static struct mtd_partition bcm947xx_parts[] = {
++	{ name: "cfe",	offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
++	{ name: "linux", offset: 0, size: 0, },
++	{ name: "rootfs", offset: 0, size: 0, },
++	{ name: "nvram", offset: 0, size: 0, },
++	{ name: "OpenWrt", offset: 0, size: 0, },
++	{ name: NULL, },
++};
++
++static int __init
++find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
++{
++	struct trx_header *trx;
++	unsigned char buf[512];
++	int off;
++	size_t len;
++
++	trx = (struct trx_header *) buf;
++
++	for (off = (256*1024); off < size; off += mtd->erasesize) {
++		memset(buf, 0xe5, sizeof(buf));
++
++		/*
++		 * Read into buffer 
++		 */
++		if (MTD_READ(mtd, off, sizeof(buf), &len, buf) ||
++		    len != sizeof(buf))
++			continue;
++
++		/* found a TRX header */
++		if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
++			part->offset = le32_to_cpu(trx->offsets[2]) ? : 
++				le32_to_cpu(trx->offsets[1]);
++			part->size = le32_to_cpu(trx->len); 
++
++			part->size -= part->offset;
++			part->offset += off;
++
++			goto done;
++		}
++	}
++
++	printk(KERN_NOTICE
++	       "%s: Couldn't find root filesystem\n",
++	       mtd->name);
++	return -1;
++
++ done:
++		return part->size;
++}
++
++struct mtd_partition * __init
++init_mtd_partitions(struct mtd_info *mtd, size_t size)
++{
++
++	/* boot loader */
++	bcm947xx_parts[0].offset = 0;
++	bcm947xx_parts[0].size	 = CFE_SIZE;
++
++	/* nvram (old config partition) */
++	bcm947xx_parts[3].offset = bcm947xx_parts[0].size;
++	bcm947xx_parts[3].size   = NVRAM_SIZE;
++
++	/* Size linux (kernel and rootfs) */
++	/* do not count the elf loader, which is on one sector */
++	bcm947xx_parts[1].offset = bcm947xx_parts[0].size + bcm947xx_parts[3].size + mtd->erasesize;
++	bcm947xx_parts[1].size   = size - NVRAM_SIZE - bcm947xx_parts[0].size - 
++		bcm947xx_parts[3].size - mtd->erasesize;
++
++	/* Find and size rootfs */
++	if (find_root(mtd,size,&bcm947xx_parts[2])==0) {
++		/* entirely jffs2 */
++		bcm947xx_parts[2].size = size - bcm947xx_parts[2].offset - NVRAM_SIZE; 
++		bcm947xx_parts[4].name = NULL;
++	} else {
++		/* legacy setup */
++		/* calculate leftover flash, and assign it to the jffs2 partition */
++		bcm947xx_parts[4].offset = bcm947xx_parts[2].offset + bcm947xx_parts[2].size;
++		if ((bcm947xx_parts[4].offset % mtd->erasesize) > 0) {
++			bcm947xx_parts[4].offset += mtd->erasesize - 
++				(bcm947xx_parts[4].offset % mtd->erasesize);
++		}
++		bcm947xx_parts[4].size = size - NVRAM_SIZE - bcm947xx_parts[4].offset;
++	}
++
++	return bcm947xx_parts;
++}
++
++EXPORT_SYMBOL(init_mtd_partitions);
++#endif
++
++int __init init_bcm947xx_map(void)
++{
++	size_t size;
++	int ret = 0;
++#ifdef CONFIG_MTD_PARTITIONS
++	struct mtd_partition *parts;
++	int i;
++#endif
++
++	bcm947xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
++
++	if (!bcm947xx_map.virt) {
++		printk("Failed to ioremap\n");
++		return -EIO;
++	}
++	simple_map_init(&bcm947xx_map);
++	
++	bcm947xx_map.copy_from = bcm947xx_map_copy_from;
++	
++	if (!(bcm947xx_mtd = do_map_probe("cfi_probe", &bcm947xx_map))) {
++		printk("Failed to do_map_probe\n");
++		iounmap((void *)bcm947xx_map.virt);
++		return -ENXIO;
++	}
++
++	bcm947xx_mtd->owner = THIS_MODULE;
++
++	size = bcm947xx_mtd->size;
++
++	printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", bcm947xx_mtd->size, WINDOW_ADDR);
++
++#ifdef CONFIG_MTD_PARTITIONS
++	parts = init_mtd_partitions(bcm947xx_mtd, size);
++	for (i = 0; parts[i].name; i++);
++	ret = add_mtd_partitions(bcm947xx_mtd, parts, i);
++	if (ret) {
++		printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
++		goto fail;
++	}
++#endif
++
++	return 0;
++
++ fail:
++	if (bcm947xx_mtd)
++		map_destroy(bcm947xx_mtd);
++	if (bcm947xx_map.map_priv_1)
++		iounmap((void *) bcm947xx_map.map_priv_1);
++	bcm947xx_map.map_priv_1 = 0;
++	return ret;
++}
++
++void __exit cleanup_bcm947xx_map(void)
++{
++#ifdef CONFIG_MTD_PARTITIONS
++	del_mtd_partitions(bcm947xx_mtd);
++#endif
++	map_destroy(bcm947xx_mtd);
++	iounmap((void *)bcm947xx_map.virt);
++}
++
++module_init(init_bcm947xx_map);
++module_exit(cleanup_bcm947xx_map);