mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-18 12:32:48 +02:00
e212aad78a
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22800 3c298f89-4303-0410-b956-a3cf2f4a3e73
381 lines
11 KiB
Diff
381 lines
11 KiB
Diff
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(-)
|
|
|
|
--- a/drivers/mtd/maps/Kconfig
|
|
+++ b/drivers/mtd/maps/Kconfig
|
|
@@ -251,6 +251,13 @@ config MTD_NETtel
|
|
help
|
|
Support for flash chips on NETtel/SecureEdge/SnapGear 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
|
|
--- a/drivers/mtd/redboot.c
|
|
+++ b/drivers/mtd/redboot.c
|
|
@@ -39,7 +39,7 @@ static inline int redboot_checksum(struc
|
|
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 @@ static int parse_redboot_partitions(stru
|
|
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 @@ static int parse_redboot_partitions(stru
|
|
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_
|
|
--- a/drivers/mtd/maps/Makefile
|
|
+++ b/drivers/mtd/maps/Makefile
|
|
@@ -59,3 +59,4 @@ obj-$(CONFIG_MTD_BFIN_ASYNC) += bfin-asy
|
|
obj-$(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
|
|
--- /dev/null
|
|
+++ b/drivers/mtd/maps/bcm963xx-flash.c
|
|
@@ -0,0 +1,267 @@
|
|
+/*
|
|
+ * 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/slab.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 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. */
|
|
+ struct bcm_tag *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;
|
|
+ char *boardid;
|
|
+ char *tagversion;
|
|
+
|
|
+ /* Allocate memory for buffer */
|
|
+ buf = vmalloc(sizeof(struct bcm_tag));
|
|
+ if (!buf)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ /* Get the tag */
|
|
+ ret = master->read(master, master->erasesize, sizeof(struct bcm_tag), &retlen, (void *)buf);
|
|
+ if (retlen != sizeof(struct bcm_tag)){
|
|
+ vfree(buf);
|
|
+ return -EIO;
|
|
+ }
|
|
+
|
|
+ sscanf(buf->kernelAddress, "%u", &kerneladdr);
|
|
+ sscanf(buf->kernelLength, "%u", &kernellen);
|
|
+ sscanf(buf->totalLength, "%u", &totallen);
|
|
+ tagversion = &(buf->tagVersion[0]);
|
|
+ boardid = &(buf->boardid[0]);
|
|
+
|
|
+ printk(KERN_INFO PFX "CFE boot tag found with version %s and board type %s\n",tagversion, boardid);
|
|
+
|
|
+ kerneladdr = kerneladdr - EXTENDED_SIZE;
|
|
+ rootfsaddr = kerneladdr + kernellen;
|
|
+ spareaddr = roundup(totallen, master->erasesize) + master->erasesize;
|
|
+ sparelen = master->size - spareaddr - master->erasesize;
|
|
+ rootfslen = spareaddr - rootfsaddr;
|
|
+
|
|
+ /* 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, (long unsigned int)(parts[i].offset), (long unsigned int)(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>");
|
|
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
|
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
|
|
@@ -816,20 +816,6 @@ void __init board_setup(void)
|
|
panic("unexpected CPU for bcm963xx board");
|
|
}
|
|
|
|
-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 */
|
|
@@ -839,12 +825,9 @@ static struct resource mtd_resources[] =
|
|
};
|
|
|
|
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,
|
|
- },
|
|
};
|
|
|
|
static struct gpio_led_platform_data bcm63xx_led_data;
|