mtd/maps/amd76xrom.c

15 #include <linux/mtd/map.h>
42 	struct map_info map;
71 	struct amd76xrom_map_info *map, *scratch;
82 	list_for_each_entry_safe(map, scratch, &window->maps, list) {
83 		if (map->rsrc.parent) {
84 			release_resource(&map->rsrc);
86 		mtd_device_unregister(map->mtd);
87 		map_destroy(map->mtd);
88 		list_del(&map->list);
89 		kfree(map);
110 	struct amd76xrom_map_info *map = NULL;
190 		if (!map) {
191 			map = kmalloc(sizeof(*map), GFP_KERNEL);
192 			if (!map)
195 		memset(map, 0, sizeof(*map));
196 		INIT_LIST_HEAD(&map->list);
197 		map->map.name = map->map_name;
198 		map->map.phys = map_top;
200 		map->map.virt = (void __iomem *)
202 		map->map.size = 0xffffffffUL - map_top + 1UL;
203 		/* Set the name of the map to the address I am trying */
204 		sprintf(map->map_name, "%s @%08Lx",
205 			MOD_NAME, (unsigned long long)map->map.phys);
208 		for(map->map.bankwidth = 32; map->map.bankwidth;
209 			map->map.bankwidth >>= 1)
213 			if (!map_bankwidth_supported(map->map.bankwidth))
216 			/* Setup the map methods */
217 			simple_map_init(&map->map);
222 				map->mtd = do_map_probe(*probe_type, &map->map);
223 				if (map->mtd)
230 		/* Trim the size if we are larger than the map */
231 		if (map->mtd->size > map->map.size) {
234 				(unsigned long long)map->mtd->size, map->map.size);
235 			map->mtd->size = map->map.size;
243 			map->rsrc.name  = map->map_name;
244 			map->rsrc.start = map->map.phys;
245 			map->rsrc.end   = map->map.phys + map->mtd->size - 1;
246 			map->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
247 			if (request_resource(&window->rsrc, &map->rsrc)) {
250 				map->rsrc.parent = NULL;
254 		/* Make the whole region visible in the map */
255 		map->map.virt = window->virt;
256 		map->map.phys = window->phys;
257 		cfi = map->map.fldrv_priv;
263 		map->mtd->owner = THIS_MODULE;
264 		if (mtd_device_register(map->mtd, NULL, 0)) {
265 			map_destroy(map->mtd);
266 			map->mtd = NULL;
272 		map_top += map->mtd->size;
274 		/* File away the map structure */
275 		list_add(&map->list, &window->maps);
276 		map = NULL;
280 	/* Free any left over map structures */
281 	kfree(map);
282 	/* See if I have any map structures */
348 MODULE_DESCRIPTION("MTD map driver for BIOS chips on the AMD76X southbridge");