[ar71xx] add try partition parser for the WRT160NL board (thanks to Christian Daniel and Gerry Rozema)

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17150 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 195 insertions, 0 deletions

diff --git a/target/linux/ar71xx/config-2.6.28 b/target/linux/ar71xx/config-2.6.28
index 693d24b570..fe5e6c91d7 100644
--- a/target/linux/ar71xx/config-2.6.28
+++ b/target/linux/ar71xx/config-2.6.28
@@ -137,6 +137,7 @@ CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_RB4XX=y
 CONFIG_MTD_REDBOOT_DIRECTORY_BLOCK=-2
 CONFIG_MTD_REDBOOT_PARTS=y
+CONFIG_MTD_TRX_PARTS=y
 CONFIG_MYLOADER=y
 # CONFIG_NATSEMI is not set
 CONFIG_NET_DSA=y
diff --git a/target/linux/ar71xx/patches-2.6.28/109-mtd-wrt160nl-trx-parser.patch b/target/linux/ar71xx/patches-2.6.28/109-mtd-wrt160nl-trx-parser.patch
new file mode 100644
index 0000000000..74aabc1a8a
--- /dev/null
+++ b/target/linux/ar71xx/patches-2.6.28/109-mtd-wrt160nl-trx-parser.patch
@@ -0,0 +1,194 @@
+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");