From e734ace5baa04e0e8af1d4483475fbd6bd2b32a1 Mon Sep 17 00:00:00 2001
From: Axel Gembe <ago@bastart.eu.org>
Date: Mon, 12 May 2008 18:54:09 +0200
Subject: [PATCH] bcm963xx: flashmap support


Signed-off-by: Axel Gembe <ago@bastart.eu.org>
---
 drivers/mtd/maps/Kconfig  |    7 +++++++
 drivers/mtd/maps/Makefile |    1 +
 drivers/mtd/redboot.c     |   13 ++++++++++---
 3 files changed, 18 insertions(+), 3 deletions(-)

Index: linux-2.6.32.9/drivers/mtd/maps/Kconfig
===================================================================
--- linux-2.6.32.9.orig/drivers/mtd/maps/Kconfig	2010-02-28 18:16:50.000000000 +0100
+++ linux-2.6.32.9/drivers/mtd/maps/Kconfig	2010-02-28 18:18:20.000000000 +0100
@@ -259,6 +259,13 @@
 	help
 	  Flash memory access on AMD Alchemy Pb/Db/RDK Reference Boards
 
+config MTD_BCM963XX
+        tristate "BCM963xx Flash device"
+        depends on MIPS && BCM63XX
+        help
+	  Flash memory access on BCM963xx boards. Currently only works with
+	  RedBoot and CFE.
+
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"
 	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT && BROKEN
Index: linux-2.6.32.9/drivers/mtd/redboot.c
===================================================================
--- linux-2.6.32.9.orig/drivers/mtd/redboot.c	2010-02-28 18:16:50.000000000 +0100
+++ linux-2.6.32.9/drivers/mtd/redboot.c	2010-02-28 18:18:20.000000000 +0100
@@ -39,7 +39,7 @@
 	return 1;
 }
 
-static int parse_redboot_partitions(struct mtd_info *master,
+int parse_redboot_partitions(struct mtd_info *master,
                              struct mtd_partition **pparts,
                              unsigned long fis_origin)
 {
@@ -162,6 +162,14 @@
 		goto out;
 	}
 
+	if (!fis_origin) {
+		for (i = 0; i < numslots; i++) {
+			if (!strncmp(buf[i].name, "RedBoot", 8)) {
+				fis_origin = (buf[i].flash_base & (master->size << 1) - 1);
+			}
+		}
+	}
+
 	for (i = 0; i < numslots; i++) {
 		struct fis_list *new_fl, **prev;
 
@@ -184,9 +192,8 @@
 		new_fl->img = &buf[i];
                 if (fis_origin) {
                         buf[i].flash_base -= fis_origin;
-                } else {
-                        buf[i].flash_base &= master->size-1;
                 }
+		buf[i].flash_base &= (master->size << 1) - 1;
 
 		/* I'm sure the JFFS2 code has done me permanent damage.
 		 * I now think the following is _normal_
Index: linux-2.6.32.9/drivers/mtd/maps/Makefile
===================================================================
--- linux-2.6.32.9.orig/drivers/mtd/maps/Makefile	2010-02-28 18:16:50.000000000 +0100
+++ linux-2.6.32.9/drivers/mtd/maps/Makefile	2010-02-28 18:18:20.000000000 +0100
@@ -61,3 +61,4 @@
 obj-$(CONFIG_MTD_RBTX4939)	+= rbtx4939-flash.o
 obj-$(CONFIG_MTD_VMU)		+= vmu-flash.o
 obj-$(CONFIG_MTD_GPIO_ADDR)	+= gpio-addr-flash.o
+obj-$(CONFIG_MTD_BCM963XX)	+= bcm963xx-flash.o
Index: linux-2.6.32.9/drivers/mtd/maps/bcm963xx-flash.c
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.32.9/drivers/mtd/maps/bcm963xx-flash.c	2010-02-28 18:18:20.000000000 +0100
@@ -0,0 +1,399 @@
+/*
+ * Copyright (C) 2006-2008  Florian Fainelli <florian@openwrt.org>
+ * 			    Mike Albon <malbon@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/vmalloc.h>
+#include <linux/platform_device.h>
+
+#include <bcm_tag.h>
+#include <asm/io.h>
+
+#define BUSWIDTH 2                     /* Buswidth */
+#define EXTENDED_SIZE 0xBFC00000       /* Extended flash address */
+
+#define PFX KBUILD_MODNAME ": "
+
+extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
+static struct mtd_partition *parsed_parts;
+
+static struct mtd_info *bcm963xx_mtd_info;
+
+static struct map_info bcm963xx_map = {
+       .name		= "bcm963xx",
+       .bankwidth	= BUSWIDTH,
+};
+
+static struct tagiddesc_t tagidtab[NUM_TAGID] = TAGID_DEFINITIONS;
+
+static uint32_t tagcrc32tab[256] = {
+	0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA, 0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+	0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988, 0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+	0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE, 0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+	0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC, 0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+	0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172, 0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+	0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940, 0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+	0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116, 0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+	0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924, 0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+	0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A, 0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+	0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818, 0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+	0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E, 0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+	0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C, 0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+	0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2, 0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+	0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0, 0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+	0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086, 0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+	0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4, 0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+	0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A, 0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+	0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8, 0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+	0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE, 0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+	0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC, 0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+	0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252, 0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+	0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60, 0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+	0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236, 0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+	0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04, 0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+	0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A, 0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+	0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38, 0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+	0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E, 0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+	0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C, 0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+	0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2, 0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+	0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0, 0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+	0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6, 0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+	0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94, 0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D
+};
+
+static uint32_t tagcrc32(uint32_t crc, uint8_t *data, size_t len)
+{
+	while (len--)
+		crc = (crc >> 8) ^ tagcrc32tab[(crc ^ *data++) & 0xFF];
+
+	return crc;
+}
+
+static int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
+{
+	int nrparts = 3, curpart = 0; /* CFE,NVRAM and global LINUX are always present. */
+	union bcm_tag *buf;
+	struct mtd_partition *parts;
+	int ret;
+	size_t retlen;
+	unsigned int rootfsaddr, kerneladdr, spareaddr;
+	unsigned int rootfslen, kernellen, sparelen, totallen;
+	unsigned char *tagid;
+	int namelen = 0;
+	int i;
+	uint32_t tagidcrc;
+	uint32_t calctagidcrc;
+        bool tagid_match = false;
+	char *boardid;
+        char *tagversion;
+	char *matchtagid;
+
+	/* Allocate memory for buffer */
+	buf = vmalloc(sizeof(union bcm_tag));
+	if (!buf)
+		return -ENOMEM;
+
+	/* Get the tag */
+	ret = master->read(master,master->erasesize,sizeof(union bcm_tag), &retlen, (void *)buf);
+	if (retlen != sizeof(union bcm_tag)){
+		vfree(buf);
+		return -EIO;
+	}
+
+	/* tagId isn't in the same location, so we check each tagid against the
+         * tagid CRC.  If the CRC is valid we have found the right tag and so
+         * use that tag
+         */
+
+	for (i = 0; i < NUM_TAGID; i++) {
+	  switch(i) {
+	  case 0:
+	    matchtagid = "bccfe";
+	    tagid = &(buf->bccfe.tagId[0]);
+	    sscanf(buf->bccfe.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->bccfe.rootLength, "%u", &rootfslen);
+	    sscanf(buf->bccfe.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->bccfe.kernelLength, "%u", &kernellen);
+	    sscanf(buf->bccfe.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->bccfe.tagIdCRC[0]);
+	    tagversion = &(buf->bccfe.tagVersion[0]);
+	    boardid = &(buf->bccfe.boardid[0]);
+	    break;
+	  case 1:
+	    matchtagid = "bc300";
+	    tagid = &(buf->bc300.tagId[0]);
+	    sscanf(buf->bc300.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->bc300.rootLength, "%u", &rootfslen);
+	    sscanf(buf->bc300.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->bc300.kernelLength, "%u", &kernellen);
+	    sscanf(buf->bc300.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->bc300.tagIdCRC[0]);
+	    tagversion = &(buf->bc300.tagVersion[0]);
+	    boardid = &(buf->bc300.boardid[0]);
+	    break;
+	  case 2:
+	    matchtagid = "ag306";
+	    tagid = &(buf->ag306.tagId[0]);
+	    sscanf(buf->ag306.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->ag306.rootLength, "%u", &rootfslen);
+	    sscanf(buf->ag306.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->ag306.kernelLength, "%u", &kernellen);
+	    sscanf(buf->ag306.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->ag306.tagIdCRC[0]);
+	    tagversion = &(buf->ag306.tagVersion[0]);
+	    boardid = &(buf->ag306.boardid[0]);
+	    break;
+	  case 3:
+	    matchtagid = "bc221";
+	    tagid = &(buf->bc221.tagId[0]);
+	    sscanf(buf->bc221.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->bc221.rootLength, "%u", &rootfslen);
+	    sscanf(buf->bc221.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->bc221.kernelLength, "%u", &kernellen);
+	    sscanf(buf->bc221.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->bc221.tagIdCRC[0]);
+	    tagversion = &(buf->bc221.tagVersion[0]);
+	    boardid = &(buf->bc221.boardid[0]);
+	    break;
+	  case 4:
+	    matchtagid = "bc310";
+	    tagid = &(buf->bc310.tagId[0]);
+	    sscanf(buf->bc310.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->bc310.rootLength, "%u", &rootfslen);
+	    sscanf(buf->bc310.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->bc310.kernelLength, "%u", &kernellen);
+	    sscanf(buf->bc310.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->bc310.tagIdCRC[0]);
+	    tagversion = &(buf->bc310.tagVersion[0]);
+	    boardid = &(buf->bc310.boardid[0]);
+	    break;
+	  }
+	  if (strncmp(tagid, matchtagid, TAGID_LEN) != 0) {
+	    continue;
+	  }
+
+	  calctagidcrc = htonl(tagcrc32(IMAGETAG_CRC_START, tagid, TAGID_LEN));
+	  if (tagidcrc == calctagidcrc) {
+	    tagid_match = true;
+	    break;
+	  }
+	}
+
+	if (!tagid_match) {
+	    tagid = "bcram";
+	    sscanf(buf->bccfe.rootAddress,"%u", &rootfsaddr);
+	    sscanf(buf->bccfe.rootLength, "%u", &rootfslen);
+	    sscanf(buf->bccfe.kernelAddress, "%u", &kerneladdr);
+	    sscanf(buf->bccfe.kernelLength, "%u", &kernellen);
+	    sscanf(buf->bccfe.totalLength, "%u", &totallen);
+	    tagidcrc = *(uint32_t *)&(buf->bccfe.tagIdCRC[0]);
+	    tagversion = &(buf->bccfe.tagVersion[0]);
+	    boardid = &(buf->bccfe.boardid[0]);
+	}
+
+	printk(KERN_INFO PFX "CFE boot tag found with version %s, board type %s, and tagid %s.\n",tagversion,boardid,tagid);
+
+	rootfsaddr = rootfsaddr - EXTENDED_SIZE;
+	kerneladdr = kerneladdr - EXTENDED_SIZE;
+	spareaddr = roundup(totallen,master->erasesize) + master->erasesize;
+	sparelen = master->size - spareaddr - master->erasesize;
+
+	/* Determine number of partitions */
+	namelen = 8;
+	if (rootfslen > 0){
+		nrparts++;
+		namelen =+ 6;
+	};
+	if (kernellen > 0) {
+		nrparts++;
+		namelen =+ 6;
+	};
+
+	/* Ask kernel for more memory */
+	parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
+	if (!parts) {
+		vfree(buf);
+		return -ENOMEM;
+	};
+
+	/* Start building partition list */
+	parts[curpart].name = "CFE";
+	parts[curpart].offset = 0;
+	parts[curpart].size = master->erasesize;
+	curpart++;
+
+	if (kernellen > 0) {
+		parts[curpart].name = "kernel";
+		parts[curpart].offset = kerneladdr;
+		parts[curpart].size = kernellen;
+		curpart++;
+	};
+
+	if (rootfslen > 0) {
+		parts[curpart].name = "rootfs";
+		parts[curpart].offset = rootfsaddr;
+		parts[curpart].size = rootfslen;
+		if (sparelen > 0)
+			parts[curpart].size += sparelen;
+		curpart++;
+	};
+
+	parts[curpart].name = "nvram";
+	parts[curpart].offset = master->size - master->erasesize;
+	parts[curpart].size = master->erasesize;
+
+	/* Global partition "linux" to make easy firmware upgrade */
+	curpart++;
+	parts[curpart].name = "linux";
+	parts[curpart].offset = parts[0].size;
+	parts[curpart].size = master->size - parts[0].size - parts[3].size;
+ 
+	for (i = 0; i < nrparts; i++)
+		printk(KERN_INFO PFX "Partition %d is %s offset %lx and length %lx\n", i, parts[i].name, parts[i].offset, parts[i].size);
+
+ 	printk(KERN_INFO PFX "Spare partition is %x offset and length %x\n", spareaddr, sparelen);
+	*pparts = parts;
+	vfree(buf);
+
+	return nrparts;
+};
+
+static int bcm963xx_detect_cfe(struct mtd_info *master)
+{
+	int idoffset = 0x4e0;
+	static char idstring[8] = "CFE1CFE1";
+	char buf[9];
+	int ret;
+	size_t retlen;
+
+	ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
+	buf[retlen] = 0;
+	printk(KERN_INFO PFX "Read Signature value of %s\n", buf);
+
+	return strncmp(idstring, buf, 8);
+}
+
+static int bcm963xx_probe(struct platform_device *pdev)
+{
+	int err = 0;
+	int parsed_nr_parts = 0;
+	char *part_type;
+	struct resource *r;
+
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0); 
+	bcm963xx_map.phys = r->start;
+	bcm963xx_map.size = (r->end - r->start) + 1;
+	bcm963xx_map.virt = ioremap(r->start, r->end - r->start + 1);
+
+	if (!bcm963xx_map.virt) {
+		printk(KERN_ERR PFX "Failed to ioremap\n");
+		return -EIO;
+	}
+	printk(KERN_INFO PFX "0x%08lx at 0x%08x\n", bcm963xx_map.size, bcm963xx_map.phys);
+
+	simple_map_init(&bcm963xx_map);
+
+	bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
+	if (!bcm963xx_mtd_info) {
+		printk(KERN_ERR PFX "Failed to probe using CFI\n");
+		err = -EIO;
+		goto err_probe;
+	}
+
+	bcm963xx_mtd_info->owner = THIS_MODULE;
+
+	/* This is mutually exclusive */
+	if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) {
+		printk(KERN_INFO PFX "CFE bootloader detected\n");
+		if (parsed_nr_parts == 0) {
+			int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts);
+			if (ret > 0) {
+				part_type = "CFE";
+				parsed_nr_parts = ret;
+			}
+		}
+	} else {
+		printk(KERN_INFO PFX "assuming RedBoot bootloader\n");
+		if (bcm963xx_mtd_info->size > 0x00400000) {
+			printk(KERN_INFO PFX "Support for extended flash memory size : 0x%lx ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size);
+			bcm963xx_map.virt = (u32)(EXTENDED_SIZE);
+		}
+
+#ifdef CONFIG_MTD_REDBOOT_PARTS
+		if (parsed_nr_parts == 0) {
+			int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0);
+			if (ret > 0) {
+				part_type = "RedBoot";
+				parsed_nr_parts = ret;
+			}
+		}
+#endif
+	}
+
+	return add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
+
+err_probe:
+	iounmap(bcm963xx_map.virt);
+	return err;
+}
+
+static int bcm963xx_remove(struct platform_device *pdev)
+{
+	if (bcm963xx_mtd_info) {
+		del_mtd_partitions(bcm963xx_mtd_info);
+		map_destroy(bcm963xx_mtd_info);
+	}
+
+	if (bcm963xx_map.virt) {
+		iounmap(bcm963xx_map.virt);
+		bcm963xx_map.virt = 0;
+	}
+
+	return 0;
+}
+
+static struct platform_driver bcm63xx_mtd_dev = {
+	.probe	= bcm963xx_probe,
+	.remove = bcm963xx_remove,
+	.driver = {
+		.name	= "bcm963xx-flash",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init bcm963xx_mtd_init(void)
+{
+	return platform_driver_register(&bcm63xx_mtd_dev);
+}
+
+static void __exit bcm963xx_mtd_exit(void)
+{
+	platform_driver_unregister(&bcm63xx_mtd_dev);
+}
+
+module_init(bcm963xx_mtd_init);
+module_exit(bcm963xx_mtd_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Broadcom BCM63xx MTD partition parser/mapping for CFE and RedBoot");
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
Index: linux-2.6.32.9/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h
===================================================================
--- /dev/null	1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.32.9/arch/mips/include/asm/mach-bcm63xx/bcm_tag.h	2010-02-28 18:18:20.000000000 +0100
@@ -0,0 +1,178 @@
+#ifndef __BCM63XX_TAG_H
+#define __BCM63XX_TAG_H
+
+#define IMAGE_LEN 10                   /* Length of Length Field */
+#define ADDRESS_LEN 12                 /* Length of Address field */
+#define TAGID_LEN  6                   /* Length of tag ID */
+#define TAGINFO_LEN 20                 /* Length of vendor information field in tag */
+#define TAGVER_LEN 4                   /* Length of Tag Version */
+#define TAGLAYOUT_LEN 4                /* Length of FlashLayoutVer */
+
+#define NUM_TAGID 5
+#define IMAGETAG_CRC_START		0xFFFFFFFF
+
+struct tagiddesc_t {
+  char tagid[TAGID_LEN + 1];
+  char tagiddesc[80];
+};
+
+ // bc221 is used by BT Voyager and should be right
+ // bc310 should be right, and may apply to 3.08 code as well
+#define TAGID_DEFINITIONS { \
+  { "bccfe", "Broadcom CFE flash image" }, \
+  { "bc300", "Broadcom code version 3.00-3.06 and all ftp/tftp flash" }, \
+  { "ag306", "Alice Gate (Pirelli, based on Broadcom 3.06)" }, \
+  { "bc221", "Broadcom code version 2.21" }, \
+  { "bc310", "Broadcom code version 3.10-3.12" }, \
+}
+
+struct bcm_tag_bccfe {
+	unsigned char tagVersion[TAGVER_LEN];           // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char rootAddress[ADDRESS_LEN];         // 94-105: Address in memory of rootfs
+	unsigned char rootLength[IMAGE_LEN];            // 106-115: Size of rootfs
+	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+        unsigned char tagId[TAGID_LEN];                 // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
+        unsigned char tagIdCRC[4];                      // 168-171: CRC32 of tagId
+	unsigned char reserved1[44];                    // 172-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[16];                    // 220-235: Unused at present
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_bc300 {
+	unsigned char tagVersion[TAGVER_LEN];           // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+        unsigned char tagId[TAGID_LEN];                 // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
+        unsigned char tagIdCRC[4];                      // 168-173: CRC32 to ensure validity of tagId
+        unsigned char rootAddress[ADDRESS_LEN];         // 174-183: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
+	unsigned char reserved1[22];                    // 194-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[16];                    // 220-235: Unused at present
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_ag306 {
+	unsigned char tagVersion[TAGVER_LEN];           // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present
+	unsigned char information2[54];                 // 162-215: Compilation and related information (not generated/used by OpenWRT)
+	unsigned char kernelCRC[4] ;                    // 216-219: CRC32 of images
+        unsigned char rootAddress[ADDRESS_LEN];         // 220-231: Address in memory of rootfs partition
+        unsigned char tagIdCRC[4];                      // 232-235: Checksum to ensure validity of tagId
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+	unsigned char rootLength[IMAGE_LEN];            // 240-249: Size of rootfs
+        unsigned char tagId[TAGID_LEN];                 // 250-255: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
+};
+
+struct bcm_tag_bc221 {
+	unsigned char tagVersion[TAGVER_LEN];           // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char rsa_signature[TAGINFO_LEN];       // 142-161: RSA Signature (unused at present; some vendors may use this)
+        unsigned char reserved5[2];                     // 162-163: Unused at present
+        unsigned char tagId[TAGID_LEN];                 // 164-169: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
+        unsigned char rootAddress[ADDRESS_LEN];         // 170-181: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 182-191: Size of rootfs partition
+        unsigned char flashLayoutVer[4];                // 192-195: Version flash layout
+        unsigned char fskernelCRC[4];                   // 196-199: Guessed to be kernel CRC
+        unsigned char reserved4[16];                    // 200-215: Reserved area; unused at present
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char reserved2[12];                    // 220-231: Unused at present
+        unsigned char tagIdCRC[4];                      // 232-235: CRC32 to ensure validity of tagId
+        unsigned char headerCRC[4];                     // 236-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+struct bcm_tag_bc310 {
+	unsigned char tagVersion[4];                    // 0-3: Version of the image tag
+	unsigned char sig_1[20];                        // 4-23: Company Line 1
+	unsigned char sig_2[14];                        // 24-37: Company Line 2
+	unsigned char chipid[6];                        // 38-43: Chip this image is for
+	unsigned char boardid[16];                      // 44-59: Board name
+	unsigned char big_endian[2];                    // 60-61: Map endianness -- 1 BE 0 LE
+	unsigned char totalLength[IMAGE_LEN];           // 62-71: Total length of image
+	unsigned char cfeAddress[ADDRESS_LEN];          // 72-83: Address in memory of CFE
+	unsigned char cfeLength[IMAGE_LEN];             // 84-93: Size of CFE
+	unsigned char flashImageStart[ADDRESS_LEN];     // 94-105: Address in memory of kernel (start of image)
+	unsigned char flashRootLength[IMAGE_LEN];       // 106-115: Size of rootfs + deadcode (web flash uses this + kernelLength to determine the size of the kernel+rootfs flash image)
+ 	unsigned char kernelAddress[ADDRESS_LEN];       // 116-127: Address in memory of kernel
+	unsigned char kernelLength[IMAGE_LEN];          // 128-137: Size of kernel
+	unsigned char dualImage[2];                     // 138-139: Unused at present
+	unsigned char inactiveFlag[2];                  // 140-141: Unused at present
+        unsigned char information1[TAGINFO_LEN];        // 142-161: Unused at present; Some vendors use this for optional information
+        unsigned char tagId[6];                         // 162-167: Identifies which type of tag this is, currently two-letter company code, and then three digits for version of broadcom code in which this tag was first introduced
+        unsigned char tagIdCRC[4];                      // 168-171: CRC32 to ensure validity of tagId
+        unsigned char rootAddress[ADDRESS_LEN];         // 172-183: Address in memory of rootfs partition
+        unsigned char rootLength[IMAGE_LEN];            // 184-193: Size of rootfs partition
+	unsigned char reserved1[22];                    // 193-215: Reserved area not in use
+	unsigned char imageCRC[4];                      // 216-219: CRC32 of images
+        unsigned char rootfsCRC[4];                     // 220-227: CRC32 of rootfs partition
+        unsigned char kernelCRC[4];                     // 224-227: CRC32 of kernel partition
+        unsigned char reserved2[8];                     // 228-235: Unused at present
+        unsigned char headerCRC[4];                     // 235-239: CRC32 of header excluding tagVersion
+        unsigned char reserved3[16];                    // 240-255: Unused at present
+};
+
+union bcm_tag {
+  struct bcm_tag_bccfe bccfe;
+  struct bcm_tag_bc300 bc300;
+  struct bcm_tag_ag306 ag306;
+  struct bcm_tag_bc221 bc221;
+  struct bcm_tag_bc310 bc310;
+};
+
+#endif /* __BCM63XX_TAG_H */
Index: linux-2.6.32.9/arch/mips/bcm63xx/boards/board_bcm963xx.c
===================================================================
--- linux-2.6.32.9.orig/arch/mips/bcm63xx/boards/board_bcm963xx.c	2010-02-28 18:23:48.000000000 +0100
+++ linux-2.6.32.9/arch/mips/bcm63xx/boards/board_bcm963xx.c	2010-02-28 18:24:06.000000000 +0100
@@ -722,20 +722,6 @@
 	return 0;
 }
 
-static struct mtd_partition mtd_partitions[] = {
-	{
-		.name		= "cfe",
-		.offset		= 0x0,
-		.size		= 0x40000,
-	}
-};
-
-static struct physmap_flash_data flash_data = {
-	.width			= 2,
-	.nr_parts		= ARRAY_SIZE(mtd_partitions),
-	.parts			= mtd_partitions,
-};
-
 static struct resource mtd_resources[] = {
 	{
 		.start		= 0,	/* filled at runtime */
@@ -745,12 +731,9 @@
 };
 
 static struct platform_device mtd_dev = {
-	.name			= "physmap-flash",
+	.name			= "bcm963xx-flash",
 	.resource		= mtd_resources,
 	.num_resources		= ARRAY_SIZE(mtd_resources),
-	.dev			= {
-		.platform_data	= &flash_data,
-	},
 };
 
 /*
