mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 18:11:30 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@30406 3c298f89-4303-0410-b956-a3cf2f4a3e73
206 lines
5.5 KiB
C
206 lines
5.5 KiB
C
/*
|
|
* Copyright (C) 2009 Christian Daniel <cd@maintech.de>
|
|
* Copyright (C) 2009 Gabor Juhos <juhosg@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
|
|
*
|
|
* TRX flash partition table.
|
|
* Based on ar7 map by Felix Fietkau <nbd@openwrt.org>
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/module.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/vmalloc.h>
|
|
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
struct cybertan_header {
|
|
char magic[4];
|
|
u8 res1[4];
|
|
char fw_date[3];
|
|
char fw_ver[3];
|
|
char id[4];
|
|
char hw_ver;
|
|
char unused;
|
|
u8 flags[2];
|
|
u8 res2[10];
|
|
};
|
|
|
|
#define TRX_PARTS 6
|
|
#define TRX_MAGIC 0x30524448
|
|
#define TRX_MAX_OFFSET 3
|
|
|
|
struct trx_header {
|
|
uint32_t magic; /* "HDR0" */
|
|
uint32_t len; /* Length of file including header */
|
|
uint32_t crc32; /* 32-bit CRC from flag_version to end of file */
|
|
uint32_t flag_version; /* 0:15 flags, 16:31 version */
|
|
uint32_t offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */
|
|
};
|
|
|
|
#define IH_MAGIC 0x27051956 /* Image Magic Number */
|
|
#define IH_NMLEN 32 /* Image Name Length */
|
|
|
|
struct uimage_header {
|
|
uint32_t ih_magic; /* Image Header Magic Number */
|
|
uint32_t ih_hcrc; /* Image Header CRC Checksum */
|
|
uint32_t ih_time; /* Image Creation Timestamp */
|
|
uint32_t ih_size; /* Image Data Size */
|
|
uint32_t ih_load; /* Data» Load Address */
|
|
uint32_t ih_ep; /* Entry Point Address */
|
|
uint32_t ih_dcrc; /* Image Data CRC Checksum */
|
|
uint8_t ih_os; /* Operating System */
|
|
uint8_t ih_arch; /* CPU architecture */
|
|
uint8_t ih_type; /* Image Type */
|
|
uint8_t ih_comp; /* Compression Type */
|
|
uint8_t ih_name[IH_NMLEN]; /* Image Name */
|
|
};
|
|
|
|
struct wrt160nl_header {
|
|
struct cybertan_header cybertan;
|
|
struct trx_header trx;
|
|
struct uimage_header uimage;
|
|
} __attribute__ ((packed));
|
|
|
|
#define WRT160NL_UBOOT_LEN 0x40000
|
|
#define WRT160NL_ART_LEN 0x10000
|
|
#define WRT160NL_NVRAM_LEN 0x10000
|
|
|
|
static int wrt160nl_parse_partitions(struct mtd_info *master,
|
|
struct mtd_partition **pparts,
|
|
struct mtd_part_parser_data *data)
|
|
{
|
|
struct wrt160nl_header *header;
|
|
struct trx_header *theader;
|
|
struct uimage_header *uheader;
|
|
struct mtd_partition *trx_parts;
|
|
size_t retlen;
|
|
unsigned int kernel_len;
|
|
unsigned int uboot_len;
|
|
unsigned int nvram_len;
|
|
unsigned int art_len;
|
|
int ret;
|
|
|
|
uboot_len = max_t(unsigned int, master->erasesize, WRT160NL_UBOOT_LEN);
|
|
nvram_len = max_t(unsigned int, master->erasesize, WRT160NL_NVRAM_LEN);
|
|
art_len = max_t(unsigned int, master->erasesize, WRT160NL_ART_LEN);
|
|
|
|
trx_parts = kzalloc(TRX_PARTS * sizeof(struct mtd_partition),
|
|
GFP_KERNEL);
|
|
if (!trx_parts) {
|
|
ret = -ENOMEM;
|
|
goto out;
|
|
}
|
|
|
|
header = vmalloc(sizeof(*header));
|
|
if (!header) {
|
|
return -ENOMEM;
|
|
goto free_parts;
|
|
}
|
|
|
|
ret = master->read(master, uboot_len, sizeof(*header),
|
|
&retlen, (void *) header);
|
|
if (ret)
|
|
goto free_hdr;
|
|
|
|
if (retlen != sizeof(*header)) {
|
|
ret = -EIO;
|
|
goto free_hdr;
|
|
}
|
|
|
|
if (strncmp(header->cybertan.magic, "NL16", 4) != 0) {
|
|
printk(KERN_NOTICE "%s: no WRT160NL signature found\n",
|
|
master->name);
|
|
goto free_hdr;
|
|
}
|
|
|
|
theader = &header->trx;
|
|
if (le32_to_cpu(theader->magic) != TRX_MAGIC) {
|
|
printk(KERN_NOTICE "%s: no TRX header found\n", master->name);
|
|
goto free_hdr;
|
|
}
|
|
|
|
uheader = &header->uimage;
|
|
if (uheader->ih_magic != IH_MAGIC) {
|
|
printk(KERN_NOTICE "%s: no uImage found\n", master->name);
|
|
goto free_hdr;
|
|
}
|
|
|
|
kernel_len = le32_to_cpu(theader->offsets[1]) +
|
|
sizeof(struct cybertan_header);
|
|
|
|
trx_parts[0].name = "u-boot";
|
|
trx_parts[0].offset = 0;
|
|
trx_parts[0].size = uboot_len;
|
|
trx_parts[0].mask_flags = MTD_WRITEABLE;
|
|
|
|
trx_parts[1].name = "kernel";
|
|
trx_parts[1].offset = trx_parts[0].offset + trx_parts[0].size;
|
|
trx_parts[1].size = kernel_len;
|
|
trx_parts[1].mask_flags = 0;
|
|
|
|
trx_parts[2].name = "rootfs";
|
|
trx_parts[2].offset = trx_parts[1].offset + trx_parts[1].size;
|
|
trx_parts[2].size = master->size - uboot_len - nvram_len - art_len -
|
|
trx_parts[1].size;
|
|
trx_parts[2].mask_flags = 0;
|
|
|
|
trx_parts[3].name = "nvram";
|
|
trx_parts[3].offset = master->size - nvram_len - art_len;
|
|
trx_parts[3].size = nvram_len;
|
|
trx_parts[3].mask_flags = MTD_WRITEABLE;
|
|
|
|
trx_parts[4].name = "art";
|
|
trx_parts[4].offset = master->size - art_len;
|
|
trx_parts[4].size = art_len;
|
|
trx_parts[4].mask_flags = MTD_WRITEABLE;
|
|
|
|
trx_parts[5].name = "firmware";
|
|
trx_parts[5].offset = uboot_len;
|
|
trx_parts[5].size = master->size - uboot_len - nvram_len - art_len;
|
|
trx_parts[5].mask_flags = 0;
|
|
|
|
vfree(header);
|
|
|
|
*pparts = trx_parts;
|
|
return TRX_PARTS;
|
|
|
|
free_hdr:
|
|
vfree(header);
|
|
free_parts:
|
|
kfree(trx_parts);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
static struct mtd_part_parser wrt160nl_parser = {
|
|
.owner = THIS_MODULE,
|
|
.parse_fn = wrt160nl_parse_partitions,
|
|
.name = "wrt160nl",
|
|
};
|
|
|
|
static int __init wrt160nl_parser_init(void)
|
|
{
|
|
return register_mtd_parser(&wrt160nl_parser);
|
|
}
|
|
|
|
module_init(wrt160nl_parser_init);
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_AUTHOR("Christian Daniel <cd@maintech.de>");
|