1 // SPDX-License-Identifier: GPL-2.0-or-later
12 #include <linux/mtd/partitions.h>
42 	return ((pdesc->part_id != 0xffffffffUL) &&  in scpart_desc_is_valid()
43 		(pdesc->part_offs != 0xffffffffUL) &&  in scpart_desc_is_valid()
44 		(pdesc->part_bytes != 0xffffffffUL));  in scpart_desc_is_valid()
59 	buf = kzalloc(master->erasesize, GFP_KERNEL);  in scpart_scan_partmap()
61 		res = -ENOMEM;  in scpart_scan_partmap()
65 	res2 = mtd_read(master, partmap_offs, master->erasesize, &retlen, buf);  in scpart_scan_partmap()
66 	if (res2 || retlen != master->erasesize) {  in scpart_scan_partmap()
67 		res = -EIO;  in scpart_scan_partmap()
72 	     offs < master->erasesize - sizeof(*tmpdesc);  in scpart_scan_partmap()
85 			res = -ENOMEM;  in scpart_scan_partmap()
112 			(offs < master->size) &&  in scpart_find_partmap()
116 			res = -EIO;  in scpart_find_partmap()
126 		offs += master->erasesize;  in scpart_find_partmap()
131 		pr_info("Valid 'SC PART MAP' (%d partitions) found at 0x%llx\n", res, offs);  in scpart_find_partmap()
133 		pr_info("No valid 'SC PART MAP' was found\n");  in scpart_find_partmap()
155 		res = -ENOENT;  in scpart_parse()
159 	ofpart_node = of_get_child_by_name(mtd_node, "partitions");  in scpart_parse()
161 		pr_info("%s: 'partitions' subnode not found on %pOF.\n",  in scpart_parse()
162 				master->name, mtd_node);  in scpart_parse()
163 		res = -ENOENT;  in scpart_parse()
169 		pr_info("No any partitions was found in 'SC PART MAP'.\n");  in scpart_parse()
170 		res = -ENOENT;  in scpart_parse()
177 		res = -ENOMEM;  in scpart_parse()
184 		if (of_property_read_u32(pp, "sercomm,scpart-id", &scpart_id))  in scpart_parse()
202 		if (of_property_read_bool(pp, "read-only"))  in scpart_parse()
217 		pr_info("No partition in OF matches partition ID with 'SC PART MAP'.\n");  in scpart_parse()
232 	{ .compatible = "sercomm,sc-partitions" },