From 7bb1bd469e98ba4bfd0cf774a82c35039c9b721a Mon Sep 17 00:00:00 2001 From: Birger Koblitz Date: Fri, 11 Sep 2020 17:36:49 +0200 Subject: [PATCH] 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 --- .../drivers/mtd/mtdsplit/mtdsplit_uimage.c | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) 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 7a9ec8acdecc..281175bae74e 100644 --- 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); -- 2.30.2