- if (mtd_info) {
- del_mtd_device(mtd_info);
-#if CONFIG_MTDRAM_TOTAL_SIZE > 0
- if (mtd_info->priv)
-#if CONFIG_MTDRAM_ABS_POS > 0
- iounmap(mtd_info->priv);
-#else
- vfree(mtd_info->priv);
-#endif
-#endif
- kfree(mtd_info);
- }
-}
-
-int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,
- unsigned long size, char *name)
-{
- memset(mtd, 0, sizeof(*mtd));
-
- /* Setup the MTD structure */
- mtd->name = name;
- mtd->type = MTD_RAM;
- mtd->flags = MTD_CAP_RAM;
- mtd->size = size;
- mtd->erasesize = MTDRAM_ERASE_SIZE;
- mtd->priv = mapped_address;
-
- mtd->owner = THIS_MODULE;
- mtd->erase = ram_erase;
- mtd->point = ram_point;
- mtd->unpoint = ram_unpoint;
- mtd->read = ram_read;
- mtd->write = ram_write;
-
- if (add_mtd_device(mtd)) {
- return -EIO;
- }
-
- return 0;
-}
-
-#if CONFIG_MTDRAM_TOTAL_SIZE > 0
-#if CONFIG_MTDRAM_ABS_POS > 0
-static int __init init_mtdram(void)
-{
- void *addr;
- int err;
- /* Allocate some memory */
- mtd_info = kmalloc(sizeof(struct mtd_info), GFP_KERNEL);
- if (!mtd_info)
- return -ENOMEM;
-
- addr = ioremap(CONFIG_MTDRAM_ABS_POS, MTDRAM_TOTAL_SIZE);
- if (!addr) {
- DEBUG(MTD_DEBUG_LEVEL1,
- "Failed to ioremap) memory region of size %ld at ABS_POS:%ld\n",
- (long)MTDRAM_TOTAL_SIZE, (long)CONFIG_MTDRAM_ABS_POS);
- kfree(mtd_info);
- mtd_info = NULL;
- return -ENOMEM;
- }
- err = mtdram_init_device(mtd_info, addr,
- MTDRAM_TOTAL_SIZE, "mtdram test device");
- if (err)
- {
- iounmap(addr);
- kfree(mtd_info);
- mtd_info = NULL;
- return err;
- }
- memset(mtd_info->priv, 0xff, MTDRAM_TOTAL_SIZE);
- return err;