Update brcm63xx flash map driver for 2.6.19

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@5841 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 8 insertions, 324 deletions

diff --git a/target/linux/brcm63xx-2.6/patches/040-bcm963xx_flashmap.patch b/target/linux/brcm63xx-2.6/patches/040-bcm963xx_flashmap.patch
index 1c6edb51cf..e9dc2f28df 100644
--- a/target/linux/brcm63xx-2.6/patches/040-bcm963xx_flashmap.patch
+++ b/target/linux/brcm63xx-2.6/patches/040-bcm963xx_flashmap.patch
@@ -1,311 +1,6 @@
-diff -urN linux-2.6.17/drivers/mtd/maps/bcm963xx-flash.c linux-2.6.17-brcm63xx/drivers/mtd/maps/bcm963xx-flash.c
---- linux-2.6.17/drivers/mtd/maps/bcm963xx-flash.c	1970-01-01 01:00:00.000000000 +0100
-+++ linux-2.6.17-brcm63xx/drivers/mtd/maps/bcm963xx-flash.c      2006-11-06 22:43:59.000000000 +0000
-@@ -0,0 +1,276 @@
-+/*
-+ * $Id$
-+ * Copyright (C) 2006  Florian Fainelli
-+ * 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 :
-+ *   - we have to use a "physically mapped flash" defined bellow
-+ *
-+ */
-+
-+#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>");
-diff -urN linux-2.6.17/drivers/mtd/maps/Kconfig linux-2.6.17-brcm63xx/drivers/mtd/maps/Kconfig
---- linux-2.6.17/drivers/mtd/maps/Kconfig	2006-06-18 03:49:35.000000000 +0200
-+++ linux-2.6.17-brcm63xx/drivers/mtd/maps/Kconfig	2006-08-30 13:03:06.000000000 +0200
-@@ -224,6 +224,13 @@
- 	  Flash memory access on 4G Systems MTX-1 Board. If you have one of
- 	  these boards and would like to use the flash chips on it, say 'Y'.
- 
-+config MTD_BCM963XX
-+        tristate "BCM963xx Flash device"
-+        depends on MIPS && BCM963XX
-+        help
-+	  Flash memory access on BCM963xx boards. Currently only works with
-+	  RedBoot, CFE support coming soon.
-+
- config MTD_DILNETPC
- 	tristate "CFI Flash device mapped on DIL/Net PC"
- 	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
-diff -urN linux-2.6.17/drivers/mtd/maps/Makefile linux-2.6.17-brcm63xx/drivers/mtd/maps/Makefile
---- linux-2.6.17/drivers/mtd/maps/Makefile	2006-06-18 03:49:35.000000000 +0200
-+++ linux-2.6.17-brcm63xx/drivers/mtd/maps/Makefile	2006-08-30 13:03:06.000000000 +0200
-@@ -71,3 +71,4 @@
- obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
- obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o
- obj-$(CONFIG_MTD_TQM834x)	+= tqm834x.o
-+obj-$(CONFIG_MTD_BCM963XX)      += bcm963xx-flash.o
-diff -urN linux-2.6.17/drivers/mtd/redboot.c linux-2.6.17-brcm63xx/drivers/mtd/redboot.c
---- linux-2.6.17/drivers/mtd/redboot.c	2006-06-18 03:49:35.000000000 +0200
-+++ linux-2.6.17-brcm63xx/drivers/mtd/redboot.c	2006-08-30 13:03:06.000000000 +0200
+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
 @@ -39,7 +39,7 @@
  	return 1;
  }
@@ -315,7 +10,7 @@ diff -urN linux-2.6.17/drivers/mtd/redboot.c linux-2.6.17-brcm63xx/drivers/mtd/r
                               struct mtd_partition **pparts,
                               unsigned long fis_origin)
  {
-@@ -120,11 +120,19 @@
+@@ -132,6 +132,14 @@
  		goto out;
  	}
  
@@ -330,24 +25,13 @@ diff -urN linux-2.6.17/drivers/mtd/redboot.c linux-2.6.17-brcm63xx/drivers/mtd/r
  	for (i = 0; i < numslots; i++) {
  		struct fis_list *new_fl, **prev;
  
- 		if (buf[i].name[0] == 0xff)
--			continue;
-+			break;
- 		if (!redboot_checksum(&buf[i]))
- 			break;
- 
-@@ -135,11 +143,10 @@
- 			goto out;
- 		}
+@@ -154,9 +162,8 @@
  		new_fl->img = &buf[i];
--                if (fis_origin) {
--                        buf[i].flash_base -= fis_origin;
+                 if (fis_origin) {
+                         buf[i].flash_base -= fis_origin;
 -                } else {
 -                        buf[i].flash_base &= master->size-1;
--                }
-+		if (fis_origin) {
-+				buf[i].flash_base -= fis_origin;
-+		}
+                 }
 +		buf[i].flash_base &= (master->size << 1) - 1;
  
  		/* I'm sure the JFFS2 code has done me permanent damage.