From 442db57b96dcf2bcaa8ace560d83d4c045d97a26 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 17 Nov 2008 10:14:58 +0000
Subject: move MyLoader partition parser into generic files, will be used on
ar71xx
SVN-Revision: 13256
---
target/linux/adm5120/files/drivers/mtd/myloader.c | 178 ----------------------
1 file changed, 178 deletions(-)
delete mode 100644 target/linux/adm5120/files/drivers/mtd/myloader.c
(limited to 'target/linux/adm5120/files/drivers/mtd/myloader.c')
diff --git a/target/linux/adm5120/files/drivers/mtd/myloader.c b/target/linux/adm5120/files/drivers/mtd/myloader.c
deleted file mode 100644
index 60ebe22..0000000
--- a/target/linux/adm5120/files/drivers/mtd/myloader.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Parse MyLoader-style flash partition tables and produce a Linux partition
- * array to match.
- *
- * Copyright (C) 2007-2008 Gabor Juhos <juhosg@openwrt.org>
- *
- * This file was based on drivers/mtd/redboot.c
- * Author: Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/byteorder/generic.h>
-#include <linux/myloader.h>
-
-#define BLOCK_LEN_MIN 0x10000
-#define PART_NAME_LEN 32
-
-struct part_data {
- struct mylo_partition_table tab;
- char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
-};
-
-int myloader_parse_partitions(struct mtd_info *master,
- struct mtd_partition **pparts,
- unsigned long origin)
-{
- struct part_data *buf;
- struct mylo_partition_table *tab;
- struct mylo_partition *part;
- struct mtd_partition *mtd_parts;
- struct mtd_partition *mtd_part;
- int num_parts;
- int ret, i;
- size_t retlen;
- char *names;
- unsigned long offset;
- unsigned long blocklen;
-
- buf = vmalloc(sizeof(*buf));
- if (!buf) {
- return -ENOMEM;
- goto out;
- }
- tab = &buf->tab;
-
- blocklen = master->erasesize;
- if (blocklen < BLOCK_LEN_MIN)
- blocklen = BLOCK_LEN_MIN;
-
- offset = blocklen;
-
- /* Find the partition table */
- for (i = 0; i < 4; i++, offset += blocklen) {
- printk(KERN_DEBUG "%s: searching for MyLoader partition table"
- " at offset 0x%lx\n", master->name, offset);
-
- ret = master->read(master, offset, sizeof(*buf), &retlen,
- (void *)buf);
- if (ret)
- goto out_free_buf;
-
- if (retlen != sizeof(*buf)) {
- ret = -EIO;
- goto out_free_buf;
- }
-
- /* Check for Partition Table magic number */
- if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
- break;
-
- }
-
- if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
- printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
- master->name);
- ret = 0;
- goto out_free_buf;
- }
-
- /* The MyLoader and the Partition Table is always present */
- num_parts = 2;
-
- /* Detect number of used partitions */
- for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
- part = &tab->partitions[i];
-
- if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
- continue;
-
- num_parts++;
- }
-
- mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
- num_parts * PART_NAME_LEN), GFP_KERNEL);
-
- if (!mtd_parts) {
- ret = -ENOMEM;
- goto out_free_buf;
- }
-
- mtd_part = mtd_parts;
- names = (char *)&mtd_parts[num_parts];
-
- strncpy(names, "myloader", PART_NAME_LEN);
- mtd_part->name = names;
- mtd_part->offset = 0;
- mtd_part->size = offset;
- mtd_part->mask_flags = MTD_WRITEABLE;
- mtd_part++;
- names += PART_NAME_LEN;
-
- strncpy(names, "partition_table", PART_NAME_LEN);
- mtd_part->name = names;
- mtd_part->offset = offset;
- mtd_part->size = blocklen;
- mtd_part->mask_flags = MTD_WRITEABLE;
- mtd_part++;
- names += PART_NAME_LEN;
-
- for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
- part = &tab->partitions[i];
-
- if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
- continue;
-
- if (buf->names[i][0])
- strncpy(names, buf->names[i], PART_NAME_LEN);
- else
- snprintf(names, PART_NAME_LEN, "partition%d", i);
-
- mtd_part->offset = le32_to_cpu(part->addr);
- mtd_part->size = le32_to_cpu(part->size);
- mtd_part->name = names;
- mtd_part++;
- names += PART_NAME_LEN;
- }
-
- *pparts = mtd_parts;
- ret = num_parts;
-
- out_free_buf:
- vfree(buf);
- out:
- return ret;
-}
-
-static struct mtd_part_parser myloader_mtd_parser = {
- .owner = THIS_MODULE,
- .parse_fn = myloader_parse_partitions,
- .name = "MyLoader",
-};
-
-static int __init myloader_mtd_parser_init(void)
-{
- return register_mtd_parser(&myloader_mtd_parser);
-}
-
-static void __exit myloader_mtd_parser_exit(void)
-{
- deregister_mtd_parser(&myloader_mtd_parser);
-}
-
-module_init(myloader_mtd_parser_init);
-module_exit(myloader_mtd_parser_exit);
-
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
-MODULE_LICENSE("GPL v2");
--
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