obj-$(CONFIG_MTD_MTX1) += mtx-1_flash.o
obj-$(CONFIG_MTD_TQM834x) += tqm834x.o
+obj-$(CONFIG_MTD_BCM963XX) += bcm963xx-flash.o
-diff -urN linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c
---- linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c 1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c 2006-12-18 17:21:07.000000000 +0100
-@@ -0,0 +1,277 @@
-+/*
-+ * $Id$
-+ * Copyright (C) 2006 Florian Fainelli <florian@openwrt.org>
-+ * Mike Albon <malbon@openwrt.org>
-+ * Copyright (C) $Date$ $Author$
-+ *
-+ * 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
-+ */
-+
-+/* This is the BCM963xx flash map driver, in its actual state it only supports BCM96348 devices
-+ * this driver is able to manage both bootloader we found on these boards : CFE and RedBoot
-+ *
-+ * RedBoot :
-+ * - this bootloader allows us to parse partitions and therefore deduce the MTD partition table
-+ *
-+ * CFE :
-+ * - CFE partitionning can be detected as for BCM947xx devices
-+ *
-+ */
-+
-+#include <asm/io.h>
-+#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 <board.h>
-+
-+#define WINDOW_ADDR 0x1FC00000 /* Real address of the flash */
-+#define WINDOW_SIZE 0x400000 /* Size of flash */
-+#define BUSWIDTH 2 /* Buswidth */
-+#define EXTENDED_SIZE 0xBFC00000 /* Extended flash address */
-+#define IMAGE_LEN 10 /* Length of Length Field */
-+#define ADDRESS_LEN 12 /* Length of Address field */
-+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
-+
-+extern int boot_loader_type; /* For RedBoot / CFE detection */
-+extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
-+static struct mtd_partition *parsed_parts;
-+
-+static void __exit bcm963xx_mtd_cleanup(void);
-+
-+static struct mtd_info *bcm963xx_mtd_info;
-+
-+static struct map_info bcm963xx_map = {
-+ .name = "bcm963xx",
-+ .size = WINDOW_SIZE,
-+ .bankwidth = BUSWIDTH,
-+ .phys = WINDOW_ADDR,
-+};
-+
-+
-+int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
-+{
-+ int nrparts = 2, curpart = 0; // CFE and NVRAM always present.
-+ struct bcm963xx_cfe_map {
-+ unsigned char tagVersion[4]; // Version of the image tag
-+ unsigned char sig_1[20]; // Company Line 1
-+ unsigned char sig_2[14]; // Company Line 2
-+ unsigned char chipid[6]; // Chip this image is for
-+ unsigned char boardid[16]; // Board name
-+ unsigned char bigEndian[2]; // Map endianness -- 1 BE 0 LE
-+ unsigned char totalLength[IMAGE_LEN]; //Total length of image
-+ unsigned char cfeAddress[ADDRESS_LEN]; // Address in memory of CFE
-+ unsigned char cfeLength[IMAGE_LEN]; // Size of CFE
-+ unsigned char rootAddress[ADDRESS_LEN]; // Address in memory of rootfs
-+ unsigned char rootLength[IMAGE_LEN]; // Size of rootfs
-+ unsigned char kernelAddress[ADDRESS_LEN]; // Address in memory of kernel
-+ unsigned char kernelLength[IMAGE_LEN]; // Size of kernel
-+ unsigned char dualImage[2]; // Unused at present
-+ unsigned char inactiveFlag[2]; // Unused at present
-+ unsigned char reserved1[74]; // Reserved area not in use
-+ unsigned char imageCRC[4]; // CRC32 of images
-+ unsigned char reserved2[16]; // Unused at present
-+ unsigned char headerCRC[4]; // CRC32 of header excluding tagVersion
-+ unsigned char reserved3[16]; // Unused at present
-+ } *buf;
-+ struct mtd_partition *parts;
-+ int ret;
-+ size_t retlen;
-+ unsigned int rootfsaddr, kerneladdr, spareaddr;
-+ unsigned int rootfslen, kernellen, sparelen, totallen;
-+ int namelen = 0;
-+ int i;
-+ // Allocate memory for buffer
-+ buf = vmalloc(sizeof(struct bcm963xx_cfe_map));
-+
-+ if (!buf)
-+ return -ENOMEM;
-+
-+ // Get the tag
-+ ret = master->read(master,master->erasesize,sizeof(struct bcm963xx_cfe_map), &retlen, (void *)buf);
-+ if (retlen != sizeof(struct bcm963xx_cfe_map)){
-+ vfree(buf);
-+ return -EIO;
-+ };
-+ printk("bcm963xx: CFE boot tag found with version %s and board type %s.\n",buf->tagVersion,buf->boardid);
-+ // Get the values and calculate
-+ sscanf(buf->rootAddress,"%u", &rootfsaddr);
-+ rootfsaddr = rootfsaddr - EXTENDED_SIZE;
-+ sscanf(buf->rootLength, "%u", &rootfslen);
-+ sscanf(buf->kernelAddress, "%u", &kerneladdr);
-+ kerneladdr = kerneladdr - EXTENDED_SIZE;
-+ sscanf(buf->kernelLength, "%u", &kernellen);
-+ sscanf(buf->totalLength, "%u", &totallen);
-+ 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;
-+ };
-+ if (sparelen > 0){
-+ nrparts++;
-+ namelen =+ 6;
-+ };
-+ // Ask kernel for more memory.
-+ parts = kmalloc(sizeof(*parts)*nrparts+10*nrparts, GFP_KERNEL);
-+ if (!parts){
-+ vfree(buf);
-+ return -ENOMEM;
-+ };
-+ memset(parts,0,sizeof(*parts)*nrparts+10*nrparts);
-+ // 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;
-+ curpart++;
-+ };
-+ if (sparelen > 0){
-+ parts[curpart].name = "OpenWrt";
-+ parts[curpart].offset = spareaddr;
-+ parts[curpart].size = sparelen;
-+ curpart++;
-+ };
-+ parts[curpart].name = "NVRAM";
-+ parts[curpart].offset = master->size - master->erasesize;
-+ parts[curpart].size = master->erasesize;
-+ for (i = 0; i < nrparts; i++) {
-+ printk("bcm963xx: Partition %d is %s offset %x and length %x\n", i, parts[i].name, parts[i].offset, parts[i].size);
-+ }
-+ *pparts = parts;
-+ vfree(buf);
-+ return nrparts;
-+};
-+
-+static struct mtd_partition bcm963xx_parts[] = {
-+ { name: "bootloader", size: 0, offset: 0, mask_flags: MTD_WRITEABLE },
-+ { name: "rootfs", size: 0, offset: 0},
-+ { name: "jffs2", size: 5 * 0x10000, offset: 57*0x10000}
-+};
-+
-+static int bcm963xx_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]);
-+
-+static int bcm963xx_detect_cfe(struct mtd_info *master)
-+{
-+ int idoffset = 0x4e0;
-+ static char idstring[8] = "CFE1CFE1";
-+ char buf[8];
-+ int ret;
-+ size_t retlen;
-+
-+ ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
-+ printk("bcm963xx: Read Signature value of %s\n", buf);
-+ return strcmp(idstring,buf);
-+}
-+
-+static int __init bcm963xx_mtd_init(void)
-+{
-+ printk("bcm963xx: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR);
-+ bcm963xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
-+
-+ if (!bcm963xx_map.virt) {
-+ printk("bcm963xx: Failed to ioremap\n");
-+ return -EIO;
-+ }
-+
-+ simple_map_init(&bcm963xx_map);
-+
-+ bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
-+
-+ if (bcm963xx_mtd_info) {
-+ bcm963xx_mtd_info->owner = THIS_MODULE;
-+
-+ //if (boot_loader_type == BOOT_CFE)
-+ if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0)
-+ {
-+ int parsed_nr_parts = 0;
-+ char * part_type;
-+ printk("bcm963xx: CFE bootloader detected\n");
-+ //add_mtd_device(bcm963xx_mtd_info);
-+ //add_mtd_partitions(bcm963xx_mtd_info, bcm963xx_parts, bcm963xx_parts_size);
-+ 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;
-+ }
-+ }
-+ add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
-+ return 0;
-+ }
-+ else
-+ {
-+ int parsed_nr_parts = 0;
-+ char * part_type;
-+
-+ if (bcm963xx_mtd_info->size > 0x00400000) {
-+ printk("Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size);
-+ bcm963xx_map.virt = (unsigned long)(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
-+ add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
-+
-+ return 0;
-+ }
-+ }
-+ iounmap(bcm963xx_map.virt);
-+ return -ENXIO;
-+}
-+
-+static void __exit bcm963xx_mtd_cleanup(void)
-+{
-+ 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;
-+ }
-+}
-+
-+module_init(bcm963xx_mtd_init);
-+module_exit(bcm963xx_mtd_cleanup);
-+
-+MODULE_LICENSE("GPL");
-+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org> Mike Albon <malbon@openwrt.org>");
diff -urN linux-2.6.19/drivers/mtd/redboot.c linux-2.6.19.new/drivers/mtd/redboot.c
--- linux-2.6.19/drivers/mtd/redboot.c 2006-12-18 17:09:14.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/redboot.c 2006-12-18 17:14:26.000000000 +0100
projects / openwrt.git / blobdiff