strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.

SVN-Revision: 8653

1 files changed, 277 insertions, 0 deletions

diff --git a/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c b/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c
new file mode 100644
index 0000000000..c4c4526b49
--- /dev/null
+++ b/target/linux/brcm63xx/files/drivers/mtd/maps/bcm963xx-flash.c
@@ -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>");