lantiq: copy target to kernel 4.19

This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 93 insertions, 0 deletions

diff --git a/target/linux/lantiq/patches-4.19/0101-find_active_root.patch b/target/linux/lantiq/patches-4.19/0101-find_active_root.patch
new file mode 100644
index 0000000000..73361c87fa
--- /dev/null
+++ b/target/linux/lantiq/patches-4.19/0101-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;
+ }
+