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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)
@@ -33,6 +35,7 @@ static int parse_ofpart_partitions(struc
struct device_node *mtd_node;
struct device_node *ofpart_node;
const char *partname;
+ const char *owrtpart = "ubi";
struct device_node *pp;
int nr_parts, i, ret = 0;
bool dedicated = true;
@@ -110,9 +113,13 @@ 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))
@@ -220,6 +227,18 @@ 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);
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