openwrtv4/target/linux/kirkwood/patches-4.9/202-linksys-find-active-root.patch
Paul Wassi 9808b9ae02 kirkwood: switch to kernel 4.9
Add patches-4.9, some of them (heavily) rewritten:
  - ea4500 is upstream available, keep only LEDE changes in dts
  - ea3500 is changed to match the structure of the upstream ea4500 dts
  - nsa310s rewritten to include the common dtsi
  - nsa325 is dropped, since already upstream

Signed-off-by: Paul Wassi <p.wassi@gmx.at>
Signed-off-by: Alberto Bursi <alberto.bursi@outlook.it>
[refresh kernel config, add on100, use the switchdev based mv88e6171
driver for the linksys boards, keep lede specific rootfs/kernel
partition names for linksys boards, reorder patches]
Signed-off-by: Mathias Kresin <dev@kresin.me>
2017-07-04 16:29:07 +02:00

62 lines
1.7 KiB
Diff

The WRT1900AC among other Linksys routers uses a dual-firmware layout.
Dynamically rename the active partition to "ubi".
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
---
--- a/drivers/mtd/ofpart.c
+++ b/drivers/mtd/ofpart.c
@@ -25,6 +25,8 @@ static bool node_has_compatible(struct d
return of_get_property(pp, "compatible", NULL);
}
+static int mangled_rootblock;
+
static int parse_ofpart_partitions(struct mtd_info *master,
const struct mtd_partition **pparts,
struct mtd_part_parser_data *data)
@@ -32,6 +34,7 @@ static int parse_ofpart_partitions(struc
struct mtd_partition *parts;
struct device_node *mtd_node;
struct device_node *ofpart_node;
+ const char *owrtpart = "ubi";
const char *partname;
struct device_node *pp;
int nr_parts, i, ret = 0;
@@ -110,9 +113,15 @@ static int parse_ofpart_partitions(struc
parts[i].size = of_read_number(reg + a_cells, s_cells);
parts[i].of_node = pp;
- partname = of_get_property(pp, "label", &len);
- if (!partname)
- partname = of_get_property(pp, "name", &len);
+ if (mangled_rootblock && (i == mangled_rootblock)) {
+ partname = owrtpart;
+ } else {
+ partname = of_get_property(pp, "label", &len);
+
+ if (!partname)
+ partname = of_get_property(pp, "name", &len);
+ }
+
parts[i].name = partname;
if (of_get_property(pp, "read-only", &len))
@@ -213,6 +222,18 @@ static int __init ofpart_parser_init(voi
return 0;
}
+static int __init active_root(char *str)
+{
+ get_option(&str, &mangled_rootblock);
+
+ if (!mangled_rootblock)
+ return 1;
+
+ return 1;
+}
+
+__setup("mangled_rootblock=", active_root);
+
static void __exit ofpart_parser_exit(void)
{
deregister_mtd_parser(&ofpart_parser);