1 // SPDX-License-Identifier: GPL-2.0-only
14 #include <linux/mtd/mtd.h>
15 #include <linux/mtd/map.h>
16 #include <linux/mtd/partitions.h>
26 	unsigned long start = (unsigned long)map->cached + from;  in pxa2xx_map_inval_cache()
29 	start &= ~(CACHELINESIZE - 1);  in pxa2xx_map_inval_cache()
38 	struct mtd_info		*mtd;  member
46 	struct flash_platform_data *flash = dev_get_platdata(&pdev->dev);  in pxa2xx_flash_probe()
52 		return -ENODEV;  in pxa2xx_flash_probe()
56 		return -ENOMEM;  in pxa2xx_flash_probe()
58 	info->map.name = flash->name;  in pxa2xx_flash_probe()
59 	info->map.bankwidth = flash->width;  in pxa2xx_flash_probe()
60 	info->map.phys = res->start;  in pxa2xx_flash_probe()
61 	info->map.size = resource_size(res);  in pxa2xx_flash_probe()
63 	info->map.virt = ioremap(info->map.phys, info->map.size);  in pxa2xx_flash_probe()
64 	if (!info->map.virt) {  in pxa2xx_flash_probe()
66 		       info->map.name);  in pxa2xx_flash_probe()
68 		return -ENOMEM;  in pxa2xx_flash_probe()
70 	info->map.cached = ioremap_cache(info->map.phys, info->map.size);  in pxa2xx_flash_probe()
71 	if (!info->map.cached)  in pxa2xx_flash_probe()
73 		       info->map.name);  in pxa2xx_flash_probe()
74 	info->map.inval_cache = pxa2xx_map_inval_cache;  in pxa2xx_flash_probe()
75 	simple_map_init(&info->map);  in pxa2xx_flash_probe()
79 	       " (%d-bit bankwidth)\n",  in pxa2xx_flash_probe()
80 	       info->map.name, (unsigned long)info->map.phys,  in pxa2xx_flash_probe()
81 	       info->map.bankwidth * 8);  in pxa2xx_flash_probe()
83 	info->mtd = do_map_probe(flash->map_name, &info->map);  in pxa2xx_flash_probe()
85 	if (!info->mtd) {  in pxa2xx_flash_probe()
86 		iounmap((void *)info->map.virt);  in pxa2xx_flash_probe()
87 		if (info->map.cached)  in pxa2xx_flash_probe()
88 			iounmap(info->map.cached);  in pxa2xx_flash_probe()
90 		return -EIO;  in pxa2xx_flash_probe()
92 	info->mtd->dev.parent = &pdev->dev;  in pxa2xx_flash_probe()
94 	mtd_device_parse_register(info->mtd, probes, NULL, flash->parts,  in pxa2xx_flash_probe()
95 				  flash->nr_parts);  in pxa2xx_flash_probe()
105 	mtd_device_unregister(info->mtd);  in pxa2xx_flash_remove()
107 	map_destroy(info->mtd);  in pxa2xx_flash_remove()
108 	iounmap(info->map.virt);  in pxa2xx_flash_remove()
109 	if (info->map.cached)  in pxa2xx_flash_remove()
110 		iounmap(info->map.cached);  in pxa2xx_flash_remove()
119 	if (info && mtd_suspend(info->mtd) == 0)  in pxa2xx_flash_shutdown()
120 		mtd_resume(info->mtd);  in pxa2xx_flash_shutdown()
128 		.name		= "pxa2xx-flash",
139 MODULE_DESCRIPTION("MTD map driver for Intel XScale PXA2xx");