Initial commit

2025-06-24 15:51:28 +02:00
commit 22031d9dab
6862 changed files with 1462554 additions and 0 deletions
--- a/target/linux/lantiq/patches-4.14/0101-find_active_root.patch
+++ b/target/linux/lantiq/patches-4.14/0101-find_active_root.patch
@@ -0,0 +1,93 @@
+--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
+@@ -25,6 +25,38 @@ static bool node_has_compatible(struct d
+ 	return of_get_property(pp, "compatible", NULL);
+ }
+ 
+static uint8_t * brnboot_get_selected_root_part(struct mtd_info *master,
+						loff_t offset)
+{
+	static uint8_t root_id;
+	int err, len;
+
+	err = mtd_read(master, offset, 0x01, &len, &root_id);
+
+	if (mtd_is_bitflip(err) || !err)
+		return &root_id;
+
+	return NULL;
+}
+
+static void brnboot_set_active_root_part(struct mtd_partition *pparts,
+					 struct device_node **part_nodes,
+					 int nr_parts,
+					 uint8_t *root_id)
+{
+	int i;
+
+	for (i = 0; i < nr_parts; i++) {
+		int part_root_id;
+
+		if (!of_property_read_u32(part_nodes[i], "brnboot,root-id", &part_root_id)
+		    && part_root_id == *root_id) {
+			pparts[i].name = "firmware";
+			break;
+		}
+	}
+}
+
+ static int parse_fixed_partitions(struct mtd_info *master,
+ 				  const struct mtd_partition **pparts,
+ 				  struct mtd_part_parser_data *data)
+@@ -36,7 +68,8 @@ static int parse_fixed_partitions(struct
+ 	struct device_node *pp;
+ 	int nr_parts, i, ret = 0;
+ 	bool dedicated = true;
+-
+	uint8_t *proot_id = NULL;
+	struct device_node **part_nodes;
+ 
+ 	/* Pull of_node from the master device node */
+ 	mtd_node = mtd_get_of_node(master);
+@@ -72,7 +105,9 @@ static int parse_fixed_partitions(struct
+ 		return 0;
+ 
+ 	parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+-	if (!parts)
+	part_nodes = kzalloc(nr_parts * sizeof(*part_nodes), GFP_KERNEL);
+
+	if (!parts || !part_nodes)
+ 		return -ENOMEM;
+ 
+ 	i = 0;
+@@ -121,12 +156,22 @@ static int parse_fixed_partitions(struct
+ 		if (of_get_property(pp, "lock", &len))
+ 			parts[i].mask_flags |= MTD_POWERUP_LOCK;
+ 
+		if (!proot_id && of_device_is_compatible(pp, "brnboot,root-selector"))
+			proot_id = brnboot_get_selected_root_part(master, parts[i].offset);
+
+		part_nodes[i] = pp;
+
+ 		i++;
+ 	}
+ 
+ 	if (!nr_parts)
+ 		goto ofpart_none;
+ 
+	if (proot_id)
+		brnboot_set_active_root_part(parts, part_nodes, nr_parts, proot_id);
+
+	kfree(part_nodes);
+
+ 	*pparts = parts;
+ 	return nr_parts;
+ 
+@@ -137,6 +182,7 @@ ofpart_fail:
+ ofpart_none:
+ 	of_node_put(pp);
+ 	kfree(parts);
+	kfree(part_nodes);
+ 	return ret;
+ }
+