kernel: add support for ALLNET devices in mtdsplit

Add support for uimage headers from ALLNET and provide support for the
SG8208M and SG8310PM devices' magic bytes.

Signed-off-by: Birger Koblitz <git@birger-koblitz.de>

diff --git a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c
index 7a9ec8acdecc4d40762266cbab57cc1ac73c230a..281175bae74ebb11981afea2d8672874abe34b6a 100644 (file)
--- a/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c
+++ b/target/linux/generic/files/drivers/mtd/mtdsplit/mtdsplit_uimage.c
@@ -319,8 +319,57 @@ static struct mtd_part_parser uimage_netgear_parser = {
        .of_match_table = mtdsplit_uimage_netgear_of_match_table,
        .parse_fn = mtdsplit_uimage_parse_netgear,
        .type = MTD_PARSER_TYPE_FIRMWARE,
+
+};
+
+
+/**************************************************
+ * ALLNET
+ **************************************************/
+
+#define FW_MAGIC_SG8208M       0x00000006
+#define FW_MAGIC_SG8310PM      0x83000006
+
+static ssize_t uimage_verify_allnet(u_char *buf, size_t len, int *extralen)
+{
+       struct uimage_header *header = (struct uimage_header *)buf;
+
+       switch (be32_to_cpu(header->ih_magic)) {
+       case FW_MAGIC_SG8208M:
+       case FW_MAGIC_SG8310PM:
+               break;
+       default:
+               return -EINVAL;
+       }
+
+       if (header->ih_os != IH_OS_LINUX)
+               return -EINVAL;
+
+       return 0;
+}
+
+static int
+mtdsplit_uimage_parse_allnet(struct mtd_info *master,
+                             const struct mtd_partition **pparts,
+                             struct mtd_part_parser_data *data)
+{
+       return __mtdsplit_parse_uimage(master, pparts, data,
+                                     uimage_verify_allnet);
+}
+
+static const struct of_device_id mtdsplit_uimage_allnet_of_match_table[] = {
+       { .compatible = "allnet,uimage" },
+       {},
 };
 
+static struct mtd_part_parser uimage_allnet_parser = {
+       .owner = THIS_MODULE,
+       .name = "allnet-fw",
+       .of_match_table = mtdsplit_uimage_allnet_of_match_table,
+       .parse_fn = mtdsplit_uimage_parse_allnet,
+};
+
+
 /**************************************************
  * Edimax
  **************************************************/
@@ -505,6 +554,7 @@ static int __init mtdsplit_uimage_init(void)
 {
        register_mtd_parser(&uimage_generic_parser);
        register_mtd_parser(&uimage_netgear_parser);
+       register_mtd_parser(&uimage_allnet_parser);
        register_mtd_parser(&uimage_edimax_parser);
        register_mtd_parser(&uimage_fonfxc_parser);
        register_mtd_parser(&uimage_sge_parser);