35 static int ram_erase(struct mtd_info *mtd, struct erase_info *instr)  in ram_erase()  argument
37 	memset((char *)mtd->priv + instr->addr, 0xff, instr->len);  in ram_erase()
43 static int ram_point(struct mtd_info *mtd, loff_t from, size_t len,  in ram_point()  argument
46 	*virt = mtd->priv + from;  in ram_point()
51 static int ram_unpoint(struct mtd_info *mtd, loff_t from, size_t len)  in ram_unpoint()  argument
61 static unsigned long ram_get_unmapped_area(struct mtd_info *mtd,  in ram_get_unmapped_area()  argument
66 	return (unsigned long) mtd->priv + offset;  in ram_get_unmapped_area()
69 static int ram_read(struct mtd_info *mtd, loff_t from, size_t len,  in ram_read()  argument
72 	memcpy(buf, mtd->priv + from, len);  in ram_read()
77 static int ram_write(struct mtd_info *mtd, loff_t to, size_t len,  in ram_write()  argument
80 	memcpy((char *)mtd->priv + to, buf, len);  in ram_write()
94 int mtdram_init_device(struct mtd_info *mtd, void *mapped_address,  in mtdram_init_device()  argument
97 	memset(mtd, 0, sizeof(*mtd));  in mtdram_init_device()
100 	mtd->name = name;  in mtdram_init_device()
101 	mtd->type = MTD_RAM;  in mtdram_init_device()
102 	mtd->flags = MTD_CAP_RAM;  in mtdram_init_device()
103 	mtd->size = size;  in mtdram_init_device()
104 	mtd->writesize = 1;  in mtdram_init_device()
105 	mtd->writebufsize = 64; /* Mimic CFI NOR flashes */  in mtdram_init_device()
106 	mtd->erasesize = MTDRAM_ERASE_SIZE;  in mtdram_init_device()
107 	mtd->priv = mapped_address;  in mtdram_init_device()
109 	mtd->owner = THIS_MODULE;  in mtdram_init_device()
110 	mtd->_erase = ram_erase;  in mtdram_init_device()
111 	mtd->_point = ram_point;  in mtdram_init_device()
112 	mtd->_unpoint = ram_unpoint;  in mtdram_init_device()
113 	mtd->_get_unmapped_area = ram_get_unmapped_area;  in mtdram_init_device()
114 	mtd->_read = ram_read;  in mtdram_init_device()
115 	mtd->_write = ram_write;  in mtdram_init_device()
117 	if (mtd_device_register(mtd, NULL, 0))  in mtdram_init_device()