move the trx parser out from the patch

SVN-Revision: 17176

1 files changed, 149 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/drivers/mtd/wrt160nl_part.c b/target/linux/ar71xx/files/drivers/mtd/wrt160nl_part.c
new file mode 100644
index 0000000000..f31d56ce28
--- /dev/null
+++ b/target/linux/ar71xx/files/drivers/mtd/wrt160nl_part.c
@@ -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 = "wrt160nl",
+};
+
+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>");