From 3c7d7e5cc2d8ce5d5594b7c4d5ac837ffb9ded0e Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Mon, 18 Dec 2006 16:30:04 +0000 Subject: [PATCH] Update brcm63xx flash map driver for 2.6.19 SVN-Revision: 5841 --- .../patches/040-bcm963xx_flashmap.patch | 332 +----------------- 1 file 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 -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#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 "); -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. -- 2.25.1