mtd/maps/ck804xrom.c

18 #include <linux/mtd/map.h>
46 	struct map_info map;
84 	struct ck804xrom_map_info *map, *scratch;
94 	list_for_each_entry_safe(map, scratch, &window->maps, list) {
95 		if (map->rsrc.parent)
96 			release_resource(&map->rsrc);
98 		mtd_device_unregister(map->mtd);
99 		map_destroy(map->mtd);
100 		list_del(&map->list);
101 		kfree(map);
123 	struct ck804xrom_map_info *map = NULL;
220 		if (!map) {
221 			map = kmalloc(sizeof(*map), GFP_KERNEL);
222 			if (!map)
225 		memset(map, 0, sizeof(*map));
226 		INIT_LIST_HEAD(&map->list);
227 		map->map.name = map->map_name;
228 		map->map.phys = map_top;
230 		map->map.virt = (void __iomem *)
232 		map->map.size = 0xffffffffUL - map_top + 1UL;
233 		/* Set the name of the map to the address I am trying */
234 		sprintf(map->map_name, "%s @%08Lx",
235 			MOD_NAME, (unsigned long long)map->map.phys);
238 		for(map->map.bankwidth = 32; map->map.bankwidth;
239 			map->map.bankwidth >>= 1)
243 			if (!map_bankwidth_supported(map->map.bankwidth))
246 			/* Setup the map methods */
247 			simple_map_init(&map->map);
252 				map->mtd = do_map_probe(*probe_type, &map->map);
253 				if (map->mtd)
260 		/* Trim the size if we are larger than the map */
261 		if (map->mtd->size > map->map.size) {
264 				(unsigned long long)map->mtd->size, map->map.size);
265 			map->mtd->size = map->map.size;
273 			map->rsrc.name  = map->map_name;
274 			map->rsrc.start = map->map.phys;
275 			map->rsrc.end   = map->map.phys + map->mtd->size - 1;
276 			map->rsrc.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
277 			if (request_resource(&window->rsrc, &map->rsrc)) {
280 				map->rsrc.parent = NULL;
284 		/* Make the whole region visible in the map */
285 		map->map.virt = window->virt;
286 		map->map.phys = window->phys;
287 		cfi = map->map.fldrv_priv;
292 		map->mtd->owner = THIS_MODULE;
293 		if (mtd_device_register(map->mtd, NULL, 0)) {
294 			map_destroy(map->mtd);
295 			map->mtd = NULL;
301 		map_top += map->mtd->size;
303 		/* File away the map structure */
304 		list_add(&map->list, &window->maps);
305 		map = NULL;
309 	/* Free any left over map structures */
310 	kfree(map);
312 	/* See if I have any map structures */
385 MODULE_DESCRIPTION("MTD map driver for BIOS chips on the Nvidia ck804 southbridge");