--- /dev/null
+diff -ur linux-2.6.28.10-orig/drivers/mtd/devices/m25p80.c linux-2.6.28.10/drivers/mtd/devices/m25p80.c
+--- linux-2.6.28.10-orig/drivers/mtd/devices/m25p80.c 2009-07-19 10:36:42.000000000 +0200
++++ linux-2.6.28.10/drivers/mtd/devices/m25p80.c 2009-07-22 21:49:21.204685685 +0200
+@@ -735,6 +735,9 @@
+ #ifdef CONFIG_MTD_REDBOOT_PARTS
+ "RedBoot",
+ #endif
++#ifdef CONFIG_MTD_TRX_PARTS
++ "trxpart",
++#endif
+ NULL, };
+
+ nr_parts = parse_mtd_partitions(&flash->mtd,
+diff -ur linux-2.6.28.10-orig/drivers/mtd/Kconfig linux-2.6.28.10/drivers/mtd/Kconfig
+--- linux-2.6.28.10-orig/drivers/mtd/Kconfig 2009-07-19 10:36:39.000000000 +0200
++++ linux-2.6.28.10/drivers/mtd/Kconfig 2009-07-22 21:20:42.929604980 +0200
+@@ -172,6 +172,12 @@
+ ---help---
+ TI AR7 partitioning support
+
++config MTD_TRX_PARTS
++ tristate "CyberTAN TRX partitioning support"
++ depends on MTD_PARTITIONS
++ ---help---
++ CyberTAN TRX paritions support
++
+ config MTD_MYLOADER_PARTS
+ tristate "MyLoader partition parsing"
+ depends on MTD_PARTITIONS && (ADM5120 || ATHEROS || ATHEROS_AR71XX)
+diff -ur linux-2.6.28.10-orig/drivers/mtd/Makefile linux-2.6.28.10/drivers/mtd/Makefile
+--- linux-2.6.28.10-orig/drivers/mtd/Makefile 2009-07-19 10:36:39.000000000 +0200
++++ linux-2.6.28.10/drivers/mtd/Makefile 2009-07-22 21:21:30.582601042 +0200
+@@ -12,6 +12,7 @@
+ obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
+ obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
+ obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o
++obj-$(CONFIG_MTD_TRX_PARTS) += trxpart.o
+ obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o
+ obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
+
+diff -urN linux-2.6.28.10-orig/drivers/mtd/trxpart.c linux-2.6.28.10/drivers/mtd/trxpart.c
+--- linux-2.6.28.10-orig/drivers/mtd/trxpart.c 1970-01-01 01:00:00.000000000 +0100
++++ linux-2.6.28.10/drivers/mtd/trxpart.c 2009-07-23 00:00:08.927254359 +0200
+@@ -0,0 +1,149 @@
++/*
++ * Copyright © 2009 Christian Daniel <cd@maintech.de>
++ *
++ * 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/slab.h>
++
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/bootmem.h>
++#include <linux/magic.h>
++
++#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 */
++};
++
++static struct mtd_partition trx_parts[TRX_PARTS];
++
++static int create_mtd_partitions(struct mtd_info *master,
++ struct mtd_partition **pparts,
++ unsigned long origin)
++{
++ uint8_t buf[512];
++ int len;
++ struct trx_header* header;
++ struct uimage_header* uheader;
++ unsigned int kernel_len;
++
++ master->read(master, 4 * master->erasesize, sizeof(buf), &len, buf);
++ if(strncmp(buf, "NL16", 4) == 0) {
++ printk(KERN_INFO "TRX on WRT160NL detected\n");
++
++ header = (struct trx_header*)(buf + 32);
++
++ if(le32_to_cpu(header->magic) != TRX_MAGIC) {
++ printk(KERN_WARNING "TRX messed up\n");
++ return 0;
++ }
++
++ uheader = (struct uimage_header*)(buf + 60);
++
++ if(uheader->ih_magic != IH_MAGIC) {
++ printk(KERN_WARNING "uImage messed up\n");
++ return 0;
++ }
++
++ kernel_len = uheader->ih_size / master->erasesize;
++ if(uheader->ih_size % master->erasesize)
++ kernel_len++;
++ kernel_len++;
++ kernel_len *= master->erasesize;
++
++ trx_parts[0].name = "u-boot";
++ trx_parts[0].offset = 0;
++ trx_parts[0].size = 4 * master->erasesize;
++ 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 - 6 * master->erasesize - trx_parts[1].size;
++ trx_parts[2].mask_flags = 0;
++
++ trx_parts[3].name = "nvram";
++ trx_parts[3].offset = master->size - 2 * master->erasesize;
++ trx_parts[3].size = master->erasesize;
++ trx_parts[3].mask_flags = 0;
++
++ trx_parts[4].name = "ART";
++ trx_parts[4].offset = master->size - master->erasesize;
++ trx_parts[4].size = master->erasesize;
++ trx_parts[4].mask_flags = MTD_WRITEABLE;
++
++ trx_parts[5].name = "firmware";
++ trx_parts[5].offset = 4 * master->erasesize;
++ trx_parts[5].size = master->size - 6 * master->erasesize;
++ trx_parts[5].mask_flags = 0;
++
++ *pparts = trx_parts;
++
++ return TRX_PARTS;
++ } else {
++ return 0;
++ }
++}
++
++static struct mtd_part_parser trx_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = create_mtd_partitions,
++ .name = "trxpart",
++};
++
++static int __init trx_parser_init(void)
++{
++ return register_mtd_parser(&trx_parser);
++}
++
++module_init(trx_parser_init);
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Christian Daniel <cd@maintech.de>");
++MODULE_DESCRIPTION("MTD partitioning for CyberTAN TRX");
projects / openwrt / staging / ynezz.git / commitdiff