1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Flash partitions described by the OF (or flattened) device tree
17 #include <linux/mtd/partitions.h>
60 	if (!master->parent) { /* Master */  in parse_fixed_partitions()
61 		ofpart_node = of_get_child_by_name(mtd_node, "partitions");  in parse_fixed_partitions()
68 …pr_debug("%s: 'partitions' subnode not found on %pOF. Trying to parse direct subnodes as partition…  in parse_fixed_partitions()
69 				master->name, mtd_node);  in parse_fixed_partitions()
79 		/* The 'partitions' subnode might be used by another parser */  in parse_fixed_partitions()
83 	quirks = of_id ? of_id->data : NULL;  in parse_fixed_partitions()
99 		return -ENOMEM;  in parse_fixed_partitions()
114 					 master->name, pp,  in parse_fixed_partitions()
118 				nr_parts--;  in parse_fixed_partitions()
129 			 * partitions as direct children of the nand controller.  in parse_fixed_partitions()
131 			 * #size-cells equal to 0 and the firmware (e.g.  in parse_fixed_partitions()
132 			 * U-Boot) just add the partitions there assuming  in parse_fixed_partitions()
133 			 * 32-bit addressing.  in parse_fixed_partitions()
140 …warn("%s: ofpart partition %pOF (%pOF) #size-cells is wrongly set to <0>, assuming <1> for parsing…  in parse_fixed_partitions()
141 				master->name, pp, mtd_node);  in parse_fixed_partitions()
146 				 master->name, pp,  in parse_fixed_partitions()
160 		if (of_property_read_bool(pp, "read-only"))  in parse_fixed_partitions()
166 		if (of_property_read_bool(pp, "slc-mode"))  in parse_fixed_partitions()
175 	if (quirks && quirks->post_parse)  in parse_fixed_partitions()
176 		quirks->post_parse(master, parts, nr_parts);  in parse_fixed_partitions()
183 	       master->name, pp, mtd_node);  in parse_fixed_partitions()
184 	ret = -EINVAL;  in parse_fixed_partitions()
193 	{ .compatible = "fixed-partitions" },
195 	{ .compatible = "brcm,bcm4908-partitions", .data = &bcm4908_partitions_quirks, },
196 	{ .compatible = "linksys,ns-partitions", .data = &linksys_ns_partitions_quirks, },
203 	.name = "fixed-partitions",
224 	part = of_get_property(dp, "partitions", &plen);  in parse_ofoldpart_partitions()
226 		return 0; /* No partitions found */  in parse_ofoldpart_partitions()
234 		return -ENOMEM;  in parse_ofoldpart_partitions()
236 	names = of_get_property(dp, "partition-names", &plen);  in parse_ofoldpart_partitions()
239 		parts[i].offset = be32_to_cpu(part->offset);  in parse_ofoldpart_partitions()
240 		parts[i].size   = be32_to_cpu(part->len) & ~1;  in parse_ofoldpart_partitions()
242 		if (be32_to_cpu(part->len) & 1)  in parse_ofoldpart_partitions()
249 			plen -= len;  in parse_ofoldpart_partitions()
291 MODULE_ALIAS("fixed-partitions");