[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Kconfig b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Kconfig
new file mode 100644
index 0000000..81ece43
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Kconfig
@@ -0,0 +1,76 @@
+config MTD_SPLIT
+ def_bool n
+ help
+ Generic MTD split support.
+
+config MTD_SPLIT_SUPPORT
+ def_bool MTD = y
+
+comment "Rootfs partition parsers"
+
+config MTD_SPLIT_SQUASHFS_ROOT
+ bool "Squashfs based root partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+ default n
+ help
+ This provides a parsing function which allows to detect the
+ offset and size of the unused portion of a rootfs partition
+ containing a squashfs.
+
+comment "Firmware partition parsers"
+
+config MTD_SPLIT_SEAMA_FW
+ bool "Seama firmware parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_WRGG_FW
+ bool "WRGG firmware parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_UIMAGE_FW
+ bool "uImage based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_FIT_FW
+ bool "FIT based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_LZMA_FW
+ bool "LZMA compressed kernel based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_TPLINK_FW
+ bool "TP-Link firmware parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_TRX_FW
+ bool "TRX image based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_BRNIMAGE_FW
+ bool "brnImage (brnboot image) firmware parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_EVA_FW
+ bool "EVA image based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_MINOR_FW
+ bool "Mikrotik NOR image based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
+
+config MTD_SPLIT_JIMAGE_FW
+ bool "JBOOT Image based firmware partition parser"
+ depends on MTD_SPLIT_SUPPORT
+ select MTD_SPLIT
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Makefile b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Makefile
new file mode 100644
index 0000000..206e754
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/Makefile
@@ -0,0 +1,13 @@
+obj-$(CONFIG_MTD_SPLIT) += mtdsplit.o
+obj-$(CONFIG_MTD_SPLIT_SEAMA_FW) += mtdsplit_seama.o
+obj-$(CONFIG_MTD_SPLIT_SQUASHFS_ROOT) += mtdsplit_squashfs.o
+obj-$(CONFIG_MTD_SPLIT_UIMAGE_FW) += mtdsplit_uimage.o
+obj-$(CONFIG_MTD_SPLIT_FIT_FW) += mtdsplit_fit.o
+obj-$(CONFIG_MTD_SPLIT_LZMA_FW) += mtdsplit_lzma.o
+obj-$(CONFIG_MTD_SPLIT_TPLINK_FW) += mtdsplit_tplink.o
+obj-$(CONFIG_MTD_SPLIT_TRX_FW) += mtdsplit_trx.o
+obj-$(CONFIG_MTD_SPLIT_BRNIMAGE_FW) += mtdsplit_brnimage.o
+obj-$(CONFIG_MTD_SPLIT_EVA_FW) += mtdsplit_eva.o
+obj-$(CONFIG_MTD_SPLIT_WRGG_FW) += mtdsplit_wrgg.o
+obj-$(CONFIG_MTD_SPLIT_MINOR_FW) += mtdsplit_minor.o
+obj-$(CONFIG_MTD_SPLIT_JIMAGE_FW) += mtdsplit_jimage.o
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.c
new file mode 100644
index 0000000..b2e51dc
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2009-2013 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2009-2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2012 Jonas Gorski <jogo@openwrt.org>
+ * Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) "mtdsplit: " fmt
+
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/magic.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+
+#include "mtdsplit.h"
+
+#define UBI_EC_MAGIC 0x55424923 /* UBI# */
+
+struct squashfs_super_block {
+ __le32 s_magic;
+ __le32 pad0[9];
+ __le64 bytes_used;
+};
+
+int mtd_get_squashfs_len(struct mtd_info *master,
+ size_t offset,
+ size_t *squashfs_len)
+{
+ struct squashfs_super_block sb;
+ size_t retlen;
+ int err;
+
+ err = mtd_read(master, offset, sizeof(sb), &retlen, (void *)&sb);
+ if (err || (retlen != sizeof(sb))) {
+ pr_alert("error occured while reading from \"%s\"\n",
+ master->name);
+ return -EIO;
+ }
+
+ if (le32_to_cpu(sb.s_magic) != SQUASHFS_MAGIC) {
+ pr_alert("no squashfs found in \"%s\"\n", master->name);
+ return -EINVAL;
+ }
+
+ retlen = le64_to_cpu(sb.bytes_used);
+ if (retlen <= 0) {
+ pr_alert("squashfs is empty in \"%s\"\n", master->name);
+ return -ENODEV;
+ }
+
+ if (offset + retlen > master->size) {
+ pr_alert("squashfs has invalid size in \"%s\"\n",
+ master->name);
+ return -EINVAL;
+ }
+
+ *squashfs_len = retlen;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mtd_get_squashfs_len);
+
+static ssize_t mtd_next_eb(struct mtd_info *mtd, size_t offset)
+{
+ return mtd_rounddown_to_eb(offset, mtd) + mtd->erasesize;
+}
+
+int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset,
+ enum mtdsplit_part_type *type)
+{
+ u32 magic;
+ size_t retlen;
+ int ret;
+
+ ret = mtd_read(mtd, offset, sizeof(magic), &retlen,
+ (unsigned char *) &magic);
+ if (ret)
+ return ret;
+
+ if (retlen != sizeof(magic))
+ return -EIO;
+
+ if (le32_to_cpu(magic) == SQUASHFS_MAGIC) {
+ if (type)
+ *type = MTDSPLIT_PART_TYPE_SQUASHFS;
+ return 0;
+ } else if (magic == 0x19852003) {
+ if (type)
+ *type = MTDSPLIT_PART_TYPE_JFFS2;
+ return 0;
+ } else if (be32_to_cpu(magic) == UBI_EC_MAGIC) {
+ if (type)
+ *type = MTDSPLIT_PART_TYPE_UBI;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(mtd_check_rootfs_magic);
+
+int mtd_find_rootfs_from(struct mtd_info *mtd,
+ size_t from,
+ size_t limit,
+ size_t *ret_offset,
+ enum mtdsplit_part_type *type)
+{
+ size_t offset;
+ int err;
+
+ for (offset = from; offset < limit;
+ offset = mtd_next_eb(mtd, offset)) {
+ err = mtd_check_rootfs_magic(mtd, offset, type);
+ if (err)
+ continue;
+
+ *ret_offset = offset;
+ return 0;
+ }
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(mtd_find_rootfs_from);
+
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.h b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.h
new file mode 100644
index 0000000..71d62a8
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2009-2013 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2009-2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2012 Jonas Gorski <jogo@openwrt.org>
+ * Copyright (C) 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#ifndef _MTDSPLIT_H
+#define _MTDSPLIT_H
+
+#define KERNEL_PART_NAME "kernel"
+#define ROOTFS_PART_NAME "rootfs"
+#define UBI_PART_NAME "ubi"
+
+#define ROOTFS_SPLIT_NAME "rootfs_data"
+
+enum mtdsplit_part_type {
+ MTDSPLIT_PART_TYPE_UNK = 0,
+ MTDSPLIT_PART_TYPE_SQUASHFS,
+ MTDSPLIT_PART_TYPE_JFFS2,
+ MTDSPLIT_PART_TYPE_UBI,
+};
+
+#ifdef CONFIG_MTD_SPLIT
+int mtd_get_squashfs_len(struct mtd_info *master,
+ size_t offset,
+ size_t *squashfs_len);
+
+int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset,
+ enum mtdsplit_part_type *type);
+
+int mtd_find_rootfs_from(struct mtd_info *mtd,
+ size_t from,
+ size_t limit,
+ size_t *ret_offset,
+ enum mtdsplit_part_type *type);
+
+#else
+static inline int mtd_get_squashfs_len(struct mtd_info *master,
+ size_t offset,
+ size_t *squashfs_len)
+{
+ return -ENODEV;
+}
+
+static inline int mtd_check_rootfs_magic(struct mtd_info *mtd, size_t offset,
+ enum mtdsplit_part_type *type)
+{
+ return -EINVAL;
+}
+
+static inline int mtd_find_rootfs_from(struct mtd_info *mtd,
+ size_t from,
+ size_t limit,
+ size_t *ret_offset,
+ enum mtdsplit_part_type *type)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_MTD_SPLIT */
+
+#endif /* _MTDSPLIT_H */
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_brnimage.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_brnimage.c
new file mode 100644
index 0000000..3f2d796
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_brnimage.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2015 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+
+#include "mtdsplit.h"
+
+#define BRNIMAGE_NR_PARTS 2
+
+#define BRNIMAGE_ALIGN_BYTES 0x400
+#define BRNIMAGE_FOOTER_SIZE 12
+
+#define BRNIMAGE_MIN_OVERHEAD (BRNIMAGE_FOOTER_SIZE)
+#define BRNIMAGE_MAX_OVERHEAD (BRNIMAGE_ALIGN_BYTES + BRNIMAGE_FOOTER_SIZE)
+
+static int mtdsplit_parse_brnimage(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *parts;
+ uint32_t buf;
+ unsigned long rootfs_offset, rootfs_size, kernel_size;
+ size_t len;
+ int ret = 0;
+
+ for (rootfs_offset = 0; rootfs_offset < master->size;
+ rootfs_offset += BRNIMAGE_ALIGN_BYTES) {
+ ret = mtd_check_rootfs_magic(master, rootfs_offset, NULL);
+ if (!ret)
+ break;
+ }
+
+ if (ret)
+ return ret;
+
+ if (rootfs_offset >= master->size)
+ return -EINVAL;
+
+ ret = mtd_read(master, rootfs_offset - BRNIMAGE_FOOTER_SIZE, 4, &len,
+ (void *)&buf);
+ if (ret)
+ return ret;
+
+ if (len != 4)
+ return -EIO;
+
+ kernel_size = le32_to_cpu(buf);
+
+ if (kernel_size > (rootfs_offset - BRNIMAGE_MIN_OVERHEAD))
+ return -EINVAL;
+
+ if (kernel_size < (rootfs_offset - BRNIMAGE_MAX_OVERHEAD))
+ return -EINVAL;
+
+ /*
+ * The footer must be untouched as it contains the checksum of the
+ * original brnImage (kernel + squashfs)!
+ */
+ rootfs_size = master->size - rootfs_offset - BRNIMAGE_FOOTER_SIZE;
+
+ parts = kzalloc(BRNIMAGE_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = kernel_size;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = rootfs_size;
+
+ *pparts = parts;
+ return BRNIMAGE_NR_PARTS;
+}
+
+static struct mtd_part_parser mtdsplit_brnimage_parser = {
+ .owner = THIS_MODULE,
+ .name = "brnimage-fw",
+ .parse_fn = mtdsplit_parse_brnimage,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_brnimage_init(void)
+{
+ register_mtd_parser(&mtdsplit_brnimage_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_brnimage_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_eva.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_eva.c
new file mode 100644
index 0000000..55004a6
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_eva.c
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
+ * Copyright (C) 2015 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define EVA_NR_PARTS 2
+#define EVA_MAGIC 0xfeed1281
+#define EVA_FOOTER_SIZE 0x18
+#define EVA_DUMMY_SQUASHFS_SIZE 0x100
+
+struct eva_image_header {
+ uint32_t magic;
+ uint32_t size;
+};
+
+static int mtdsplit_parse_eva(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *parts;
+ struct eva_image_header hdr;
+ size_t retlen;
+ unsigned long kernel_size, rootfs_offset;
+ int err;
+
+ err = mtd_read(master, 0, sizeof(hdr), &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != sizeof(hdr))
+ return -EIO;
+
+ if (le32_to_cpu(hdr.magic) != EVA_MAGIC)
+ return -EINVAL;
+
+ kernel_size = le32_to_cpu(hdr.size) + EVA_FOOTER_SIZE;
+
+ /* rootfs starts at the next 0x10000 boundary: */
+ rootfs_offset = round_up(kernel_size, 0x10000);
+
+ /* skip the dummy EVA squashfs partition (with wrong endianness): */
+ rootfs_offset += EVA_DUMMY_SQUASHFS_SIZE;
+
+ if (rootfs_offset >= master->size)
+ return -EINVAL;
+
+ err = mtd_check_rootfs_magic(master, rootfs_offset, NULL);
+ if (err)
+ return err;
+
+ parts = kzalloc(EVA_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = kernel_size;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return EVA_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_eva_of_match_table[] = {
+ { .compatible = "avm,eva-firmware" },
+ {},
+};
+
+static struct mtd_part_parser mtdsplit_eva_parser = {
+ .owner = THIS_MODULE,
+ .name = "eva-fw",
+ .of_match_table = mtdsplit_eva_of_match_table,
+ .parse_fn = mtdsplit_parse_eva,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_eva_init(void)
+{
+ register_mtd_parser(&mtdsplit_eva_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_eva_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_fit.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_fit.c
new file mode 100644
index 0000000..67ee33d
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_fit.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2015 The Linux Foundation
+ * Copyright (C) 2014 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/types.h>
+#include <linux/byteorder/generic.h>
+#include <linux/slab.h>
+#include <linux/of_fdt.h>
+
+#include "mtdsplit.h"
+
+struct fdt_header {
+ uint32_t magic; /* magic word FDT_MAGIC */
+ uint32_t totalsize; /* total size of DT block */
+ uint32_t off_dt_struct; /* offset to structure */
+ uint32_t off_dt_strings; /* offset to strings */
+ uint32_t off_mem_rsvmap; /* offset to memory reserve map */
+ uint32_t version; /* format version */
+ uint32_t last_comp_version; /* last compatible version */
+
+ /* version 2 fields below */
+ uint32_t boot_cpuid_phys; /* Which physical CPU id we're
+ booting on */
+ /* version 3 fields below */
+ uint32_t size_dt_strings; /* size of the strings block */
+
+ /* version 17 fields below */
+ uint32_t size_dt_struct; /* size of the structure block */
+};
+
+static int
+mtdsplit_fit_parse(struct mtd_info *mtd,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct fdt_header hdr;
+ size_t hdr_len, retlen;
+ size_t offset;
+ size_t fit_offset, fit_size;
+ size_t rootfs_offset, rootfs_size;
+ struct mtd_partition *parts;
+ int ret;
+
+ hdr_len = sizeof(struct fdt_header);
+
+ /* Parse the MTD device & search for the FIT image location */
+ for(offset = 0; offset + hdr_len <= mtd->size; offset += mtd->erasesize) {
+ ret = mtd_read(mtd, offset, hdr_len, &retlen, (void*) &hdr);
+ if (ret) {
+ pr_err("read error in \"%s\" at offset 0x%llx\n",
+ mtd->name, (unsigned long long) offset);
+ return ret;
+ }
+
+ if (retlen != hdr_len) {
+ pr_err("short read in \"%s\"\n", mtd->name);
+ return -EIO;
+ }
+
+ /* Check the magic - see if this is a FIT image */
+ if (be32_to_cpu(hdr.magic) != OF_DT_HEADER) {
+ pr_debug("no valid FIT image found in \"%s\" at offset %llx\n",
+ mtd->name, (unsigned long long) offset);
+ continue;
+ }
+
+ /* We found a FIT image. Let's keep going */
+ break;
+ }
+
+ fit_offset = offset;
+ fit_size = be32_to_cpu(hdr.totalsize);
+
+ if (fit_size == 0) {
+ pr_err("FIT image in \"%s\" at offset %llx has null size\n",
+ mtd->name, (unsigned long long) fit_offset);
+ return -ENODEV;
+ }
+
+ /* Search for the rootfs partition after the FIT image */
+ ret = mtd_find_rootfs_from(mtd, fit_offset + fit_size, mtd->size,
+ &rootfs_offset, NULL);
+ if (ret) {
+ pr_info("no rootfs found after FIT image in \"%s\"\n",
+ mtd->name);
+ return ret;
+ }
+
+ rootfs_size = mtd->size - rootfs_offset;
+
+ parts = kzalloc(2 * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = fit_offset;
+ parts[0].size = mtd_rounddown_to_eb(fit_size, mtd) + mtd->erasesize;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = rootfs_size;
+
+ *pparts = parts;
+ return 2;
+}
+
+static const struct of_device_id mtdsplit_fit_of_match_table[] = {
+ { .compatible = "denx,fit" },
+ {},
+};
+
+static struct mtd_part_parser uimage_parser = {
+ .owner = THIS_MODULE,
+ .name = "fit-fw",
+ .of_match_table = mtdsplit_fit_of_match_table,
+ .parse_fn = mtdsplit_fit_parse,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+/**************************************************
+ * Init
+ **************************************************/
+
+static int __init mtdsplit_fit_init(void)
+{
+ register_mtd_parser(&uimage_parser);
+
+ return 0;
+}
+
+module_init(mtdsplit_fit_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_jimage.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_jimage.c
new file mode 100644
index 0000000..1770dd4
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_jimage.c
@@ -0,0 +1,284 @@
+/*
+ * Copyright (C) 2018 Paweł Dembicki <paweldembicki@gmail.com>
+ *
+ * Based on: mtdsplit_uimage.c
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define MAX_HEADER_LEN ( STAG_SIZE + SCH2_SIZE )
+
+#define STAG_SIZE 16
+#define STAG_ID 0x04
+#define STAG_MAGIC 0x2B24
+
+#define SCH2_SIZE 40
+#define SCH2_MAGIC 0x2124
+#define SCH2_VER 0x02
+
+/*
+ * Jboot image header,
+ * all data in little endian.
+ */
+
+struct jimage_header //stag + sch2 jboot joined headers
+{
+ uint8_t stag_cmark; // in factory 0xFF , in sysupgrade must be the same as stag_id
+ uint8_t stag_id; // 0x04
+ uint16_t stag_magic; //magic 0x2B24
+ uint32_t stag_time_stamp; // timestamp calculated in jboot way
+ uint32_t stag_image_length; // lentgh of kernel + sch2 header
+ uint16_t stag_image_checksum; // negated jboot_checksum of sch2 + kernel
+ uint16_t stag_tag_checksum; // negated jboot_checksum of stag header data
+ uint16_t sch2_magic; // magic 0x2124
+ uint8_t sch2_cp_type; // 0x00 for flat, 0x01 for jz, 0x02 for gzip, 0x03 for lzma
+ uint8_t sch2_version; // 0x02 for sch2
+ uint32_t sch2_ram_addr; // ram entry address
+ uint32_t sch2_image_len; // kernel image length
+ uint32_t sch2_image_crc32; // kernel image crc
+ uint32_t sch2_start_addr; // ram start address
+ uint32_t sch2_rootfs_addr; // rootfs flash address
+ uint32_t sch2_rootfs_len; // rootfls length
+ uint32_t sch2_rootfs_crc32; // rootfs crc32
+ uint32_t sch2_header_crc32; // sch2 header crc32, durring calculation this area is replaced by zero
+ uint16_t sch2_header_length; // sch2 header length: 0x28
+ uint16_t sch2_cmd_line_length; // cmd line length, known zeros
+};
+
+static int
+read_jimage_header(struct mtd_info *mtd, size_t offset, u_char *buf,
+ size_t header_len)
+{
+ size_t retlen;
+ int ret;
+
+ ret = mtd_read(mtd, offset, header_len, &retlen, buf);
+ if (ret) {
+ pr_debug("read error in \"%s\"\n", mtd->name);
+ return ret;
+ }
+
+ if (retlen != header_len) {
+ pr_debug("short read in \"%s\"\n", mtd->name);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * __mtdsplit_parse_jimage - scan partition and create kernel + rootfs parts
+ *
+ * @find_header: function to call for a block of data that will return offset
+ * of a valid jImage header if found
+ */
+static int __mtdsplit_parse_jimage(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data,
+ ssize_t (*find_header)(u_char *buf, size_t len))
+{
+ struct mtd_partition *parts;
+ u_char *buf;
+ int nr_parts;
+ size_t offset;
+ size_t jimage_offset;
+ size_t jimage_size = 0;
+ size_t rootfs_offset;
+ size_t rootfs_size = 0;
+ int jimage_part, rf_part;
+ int ret;
+ enum mtdsplit_part_type type;
+
+ nr_parts = 2;
+ parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ buf = vmalloc(MAX_HEADER_LEN);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_free_parts;
+ }
+
+ /* find jImage on erase block boundaries */
+ for (offset = 0; offset < master->size; offset += master->erasesize) {
+ struct jimage_header *header;
+
+ jimage_size = 0;
+
+ ret = read_jimage_header(master, offset, buf, MAX_HEADER_LEN);
+ if (ret)
+ continue;
+
+ ret = find_header(buf, MAX_HEADER_LEN);
+ if (ret < 0) {
+ pr_debug("no valid jImage found in \"%s\" at offset %llx\n",
+ master->name, (unsigned long long) offset);
+ continue;
+ }
+ header = (struct jimage_header *)(buf + ret);
+
+ jimage_size = sizeof(*header) + header->sch2_image_len + ret;
+ if ((offset + jimage_size) > master->size) {
+ pr_debug("jImage exceeds MTD device \"%s\"\n",
+ master->name);
+ continue;
+ }
+ break;
+ }
+
+ if (jimage_size == 0) {
+ pr_debug("no jImage found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err_free_buf;
+ }
+
+ jimage_offset = offset;
+
+ if (jimage_offset == 0) {
+ jimage_part = 0;
+ rf_part = 1;
+
+ /* find the roots after the jImage */
+ ret = mtd_find_rootfs_from(master, jimage_offset + jimage_size,
+ master->size, &rootfs_offset, &type);
+ if (ret) {
+ pr_debug("no rootfs after jImage in \"%s\"\n",
+ master->name);
+ goto err_free_buf;
+ }
+
+ rootfs_size = master->size - rootfs_offset;
+ jimage_size = rootfs_offset - jimage_offset;
+ } else {
+ rf_part = 0;
+ jimage_part = 1;
+
+ /* check rootfs presence at offset 0 */
+ ret = mtd_check_rootfs_magic(master, 0, &type);
+ if (ret) {
+ pr_debug("no rootfs before jImage in \"%s\"\n",
+ master->name);
+ goto err_free_buf;
+ }
+
+ rootfs_offset = 0;
+ rootfs_size = jimage_offset;
+ }
+
+ if (rootfs_size == 0) {
+ pr_debug("no rootfs found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err_free_buf;
+ }
+
+ parts[jimage_part].name = KERNEL_PART_NAME;
+ parts[jimage_part].offset = jimage_offset;
+ parts[jimage_part].size = jimage_size;
+
+ if (type == MTDSPLIT_PART_TYPE_UBI)
+ parts[rf_part].name = UBI_PART_NAME;
+ else
+ parts[rf_part].name = ROOTFS_PART_NAME;
+ parts[rf_part].offset = rootfs_offset;
+ parts[rf_part].size = rootfs_size;
+
+ vfree(buf);
+
+ *pparts = parts;
+ return nr_parts;
+
+err_free_buf:
+ vfree(buf);
+
+err_free_parts:
+ kfree(parts);
+ return ret;
+}
+
+static ssize_t jimage_verify_default(u_char *buf, size_t len)
+{
+ struct jimage_header *header = (struct jimage_header *)buf;
+
+ /* default sanity checks */
+ if (header->stag_magic != STAG_MAGIC) {
+ pr_debug("invalid jImage stag header magic: %04x\n",
+ header->stag_magic);
+ return -EINVAL;
+ }
+ if (header->sch2_magic != SCH2_MAGIC) {
+ pr_debug("invalid jImage sch2 header magic: %04x\n",
+ header->stag_magic);
+ return -EINVAL;
+ }
+ if (header->stag_cmark != header->stag_id) {
+ pr_debug("invalid jImage stag header cmark: %02x\n",
+ header->stag_magic);
+ return -EINVAL;
+ }
+ if (header->stag_id != STAG_ID) {
+ pr_debug("invalid jImage stag header id: %02x\n",
+ header->stag_magic);
+ return -EINVAL;
+ }
+ if (header->sch2_version != SCH2_VER) {
+ pr_debug("invalid jImage sch2 header version: %02x\n",
+ header->stag_magic);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+mtdsplit_jimage_parse_generic(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_jimage(master, pparts, data,
+ jimage_verify_default);
+}
+
+static const struct of_device_id mtdsplit_jimage_of_match_table[] = {
+ { .compatible = "amit,jimage" },
+ {},
+};
+
+static struct mtd_part_parser jimage_generic_parser = {
+ .owner = THIS_MODULE,
+ .name = "jimage-fw",
+ .of_match_table = mtdsplit_jimage_of_match_table,
+ .parse_fn = mtdsplit_jimage_parse_generic,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+/**************************************************
+ * Init
+ **************************************************/
+
+static int __init mtdsplit_jimage_init(void)
+{
+ register_mtd_parser(&jimage_generic_parser);
+
+ return 0;
+}
+
+module_init(mtdsplit_jimage_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_lzma.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_lzma.c
new file mode 100644
index 0000000..c58f7ae
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_lzma.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2014 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/of.h>
+
+#include <asm/unaligned.h>
+
+#include "mtdsplit.h"
+
+#define LZMA_NR_PARTS 2
+#define LZMA_PROPERTIES_SIZE 5
+
+struct lzma_header {
+ u8 props[LZMA_PROPERTIES_SIZE];
+ u8 size_low[4];
+ u8 size_high[4];
+};
+
+static int mtdsplit_parse_lzma(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct lzma_header hdr;
+ size_t hdr_len, retlen;
+ size_t rootfs_offset;
+ u32 t;
+ struct mtd_partition *parts;
+ int err;
+
+ hdr_len = sizeof(hdr);
+ err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != hdr_len)
+ return -EIO;
+
+ /* verify LZMA properties */
+ if (hdr.props[0] >= (9 * 5 * 5))
+ return -EINVAL;
+
+ t = get_unaligned_le32(&hdr.props[1]);
+ if (!is_power_of_2(t))
+ return -EINVAL;
+
+ t = get_unaligned_le32(&hdr.size_high);
+ if (t)
+ return -EINVAL;
+
+ err = mtd_find_rootfs_from(master, master->erasesize, master->size,
+ &rootfs_offset, NULL);
+ if (err)
+ return err;
+
+ parts = kzalloc(LZMA_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = rootfs_offset;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return LZMA_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_lzma_of_match_table[] = {
+ { .compatible = "lzma" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtdsplit_lzma_of_match_table);
+
+static struct mtd_part_parser mtdsplit_lzma_parser = {
+ .owner = THIS_MODULE,
+ .name = "lzma-fw",
+ .of_match_table = mtdsplit_lzma_of_match_table,
+ .parse_fn = mtdsplit_parse_lzma,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_lzma_init(void)
+{
+ register_mtd_parser(&mtdsplit_lzma_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_lzma_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_minor.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_minor.c
new file mode 100644
index 0000000..af6822e
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_minor.c
@@ -0,0 +1,125 @@
+/*
+ * MTD splitter for MikroTik NOR devices
+ *
+ * Copyright (C) 2017 Thibaut VARENE <varenet@parisc-linux.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * The rootfs is expected at erase-block boundary due to the use of
+ * mtd_find_rootfs_from(). We use a trimmed down version of the yaffs header
+ * for two main reasons:
+ * - the original header uses weakly defined types (int, enum...) which can
+ * vary in length depending on build host (and the struct is not packed),
+ * and the name field can have a different total length depending on
+ * whether or not the yaffs code was _built_ with unicode support.
+ * - the only field that could be of real use here (file_size_low) contains
+ * invalid data in the header generated by kernel2minor, so we cannot use
+ * it to infer the exact position of the rootfs and do away with
+ * mtd_find_rootfs_from() (and thus have non-EB-aligned rootfs).
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/string.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define YAFFS_OBJECT_TYPE_FILE 0x1
+#define YAFFS_OBJECTID_ROOT 0x1
+#define YAFFS_SUM_UNUSED 0xFFFF
+#define YAFFS_NAME "kernel"
+
+#define MINOR_NR_PARTS 2
+
+/*
+ * This structure is based on yaffs_obj_hdr from yaffs_guts.h
+ * The weak types match upstream. The fields have cpu-endianness
+ */
+struct minor_header {
+ int yaffs_type;
+ int yaffs_obj_id;
+ u16 yaffs_sum_unused;
+ char yaffs_name[sizeof(YAFFS_NAME)];
+};
+
+static int mtdsplit_parse_minor(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct minor_header hdr;
+ size_t hdr_len, retlen;
+ size_t rootfs_offset;
+ struct mtd_partition *parts;
+ int err;
+
+ hdr_len = sizeof(hdr);
+ err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != hdr_len)
+ return -EIO;
+
+ /* match header */
+ if (hdr.yaffs_type != YAFFS_OBJECT_TYPE_FILE)
+ return -EINVAL;
+
+ if (hdr.yaffs_obj_id != YAFFS_OBJECTID_ROOT)
+ return -EINVAL;
+
+ if (hdr.yaffs_sum_unused != YAFFS_SUM_UNUSED)
+ return -EINVAL;
+
+ if (memcmp(hdr.yaffs_name, YAFFS_NAME, sizeof(YAFFS_NAME)))
+ return -EINVAL;
+
+ err = mtd_find_rootfs_from(master, master->erasesize, master->size,
+ &rootfs_offset, NULL);
+ if (err)
+ return err;
+
+ parts = kzalloc(MINOR_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = rootfs_offset;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return MINOR_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_minor_of_match_table[] = {
+ { .compatible = "mikrotik,minor" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtdsplit_minor_of_match_table);
+
+static struct mtd_part_parser mtdsplit_minor_parser = {
+ .owner = THIS_MODULE,
+ .name = "minor-fw",
+ .of_match_table = mtdsplit_minor_of_match_table,
+ .parse_fn = mtdsplit_parse_minor,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_minor_init(void)
+{
+ register_mtd_parser(&mtdsplit_minor_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_minor_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_seama.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_seama.c
new file mode 100644
index 0000000..5d49171
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_seama.c
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define SEAMA_MAGIC 0x5EA3A417
+#define SEAMA_NR_PARTS 2
+#define SEAMA_MIN_ROOTFS_OFFS 0x80000 /* 512KiB */
+
+struct seama_header {
+ __be32 magic; /* should always be SEAMA_MAGIC. */
+ __be16 reserved; /* reserved for */
+ __be16 metasize; /* size of the META data */
+ __be32 size; /* size of the image */
+ u8 md5[16]; /* digest */
+};
+
+static int mtdsplit_parse_seama(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct seama_header hdr;
+ size_t hdr_len, retlen, kernel_ent_size;
+ size_t rootfs_offset;
+ struct mtd_partition *parts;
+ enum mtdsplit_part_type type;
+ int err;
+
+ hdr_len = sizeof(hdr);
+ err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != hdr_len)
+ return -EIO;
+
+ /* sanity checks */
+ if (be32_to_cpu(hdr.magic) != SEAMA_MAGIC)
+ return -EINVAL;
+
+ kernel_ent_size = hdr_len + be32_to_cpu(hdr.size) +
+ be16_to_cpu(hdr.metasize);
+ if (kernel_ent_size > master->size)
+ return -EINVAL;
+
+ /* Check for the rootfs right after Seama entity with a kernel. */
+ err = mtd_check_rootfs_magic(master, kernel_ent_size, &type);
+ if (!err) {
+ rootfs_offset = kernel_ent_size;
+ } else {
+ /*
+ * On some devices firmware entity might contain both: kernel
+ * and rootfs. We can't determine kernel size so we just have to
+ * look for rootfs magic.
+ * Start the search from an arbitrary offset.
+ */
+ err = mtd_find_rootfs_from(master, SEAMA_MIN_ROOTFS_OFFS,
+ master->size, &rootfs_offset, &type);
+ if (err)
+ return err;
+ }
+
+ parts = kzalloc(SEAMA_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = sizeof hdr + be16_to_cpu(hdr.metasize);
+ parts[0].size = rootfs_offset - parts[0].offset;
+
+ if (type == MTDSPLIT_PART_TYPE_UBI)
+ parts[1].name = UBI_PART_NAME;
+ else
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return SEAMA_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_seama_of_match_table[] = {
+ { .compatible = "seama" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtdsplit_seama_of_match_table);
+
+static struct mtd_part_parser mtdsplit_seama_parser = {
+ .owner = THIS_MODULE,
+ .name = "seama-fw",
+ .of_match_table = mtdsplit_seama_of_match_table,
+ .parse_fn = mtdsplit_parse_seama,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_seama_init(void)
+{
+ register_mtd_parser(&mtdsplit_seama_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_seama_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_squashfs.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_squashfs.c
new file mode 100644
index 0000000..79e1f73
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_squashfs.c
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/magic.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+
+#include "mtdsplit.h"
+
+static int
+mtdsplit_parse_squashfs(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *part;
+ struct mtd_info *parent_mtd;
+ size_t part_offset;
+ size_t squashfs_len;
+ int err;
+
+ err = mtd_get_squashfs_len(master, 0, &squashfs_len);
+ if (err)
+ return err;
+
+ parent_mtd = mtdpart_get_master(master);
+ part_offset = mtdpart_get_offset(master);
+
+ part = kzalloc(sizeof(*part), GFP_KERNEL);
+ if (!part) {
+ pr_alert("unable to allocate memory for \"%s\" partition\n",
+ ROOTFS_SPLIT_NAME);
+ return -ENOMEM;
+ }
+
+ part->name = ROOTFS_SPLIT_NAME;
+ part->offset = mtd_roundup_to_eb(part_offset + squashfs_len,
+ parent_mtd) - part_offset;
+ part->size = mtd_rounddown_to_eb(master->size - part->offset, master);
+
+ *pparts = part;
+ return 1;
+}
+
+static struct mtd_part_parser mtdsplit_squashfs_parser = {
+ .owner = THIS_MODULE,
+ .name = "squashfs-split",
+ .parse_fn = mtdsplit_parse_squashfs,
+ .type = MTD_PARSER_TYPE_ROOTFS,
+};
+
+static int __init mtdsplit_squashfs_init(void)
+{
+ register_mtd_parser(&mtdsplit_squashfs_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_squashfs_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_tplink.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_tplink.c
new file mode 100644
index 0000000..8909c10
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_tplink.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define TPLINK_NR_PARTS 2
+#define TPLINK_MIN_ROOTFS_OFFS 0x80000 /* 512KiB */
+
+#define MD5SUM_LEN 16
+
+struct fw_v1 {
+ char vendor_name[24];
+ char fw_version[36];
+ uint32_t hw_id; /* hardware id */
+ uint32_t hw_rev; /* hardware revision */
+ uint32_t unk1;
+ uint8_t md5sum1[MD5SUM_LEN];
+ uint32_t unk2;
+ uint8_t md5sum2[MD5SUM_LEN];
+ uint32_t unk3;
+ uint32_t kernel_la; /* kernel load address */
+ uint32_t kernel_ep; /* kernel entry point */
+ uint32_t fw_length; /* total length of the firmware */
+ uint32_t kernel_ofs; /* kernel data offset */
+ uint32_t kernel_len; /* kernel data length */
+ uint32_t rootfs_ofs; /* rootfs data offset */
+ uint32_t rootfs_len; /* rootfs data length */
+ uint32_t boot_ofs; /* bootloader data offset */
+ uint32_t boot_len; /* bootloader data length */
+ uint8_t pad[360];
+} __attribute__ ((packed));
+
+struct fw_v2 {
+ char fw_version[48]; /* 0x04: fw version string */
+ uint32_t hw_id; /* 0x34: hardware id */
+ uint32_t hw_rev; /* 0x38: FIXME: hardware revision? */
+ uint32_t unk1; /* 0x3c: 0x00000000 */
+ uint8_t md5sum1[MD5SUM_LEN]; /* 0x40 */
+ uint32_t unk2; /* 0x50: 0x00000000 */
+ uint8_t md5sum2[MD5SUM_LEN]; /* 0x54 */
+ uint32_t unk3; /* 0x64: 0xffffffff */
+
+ uint32_t kernel_la; /* 0x68: kernel load address */
+ uint32_t kernel_ep; /* 0x6c: kernel entry point */
+ uint32_t fw_length; /* 0x70: total length of the image */
+ uint32_t kernel_ofs; /* 0x74: kernel data offset */
+ uint32_t kernel_len; /* 0x78: kernel data length */
+ uint32_t rootfs_ofs; /* 0x7c: rootfs data offset */
+ uint32_t rootfs_len; /* 0x80: rootfs data length */
+ uint32_t boot_ofs; /* 0x84: FIXME: seems to be unused */
+ uint32_t boot_len; /* 0x88: FIXME: seems to be unused */
+ uint16_t unk4; /* 0x8c: 0x55aa */
+ uint8_t sver_hi; /* 0x8e */
+ uint8_t sver_lo; /* 0x8f */
+ uint8_t unk5; /* 0x90: magic: 0xa5 */
+ uint8_t ver_hi; /* 0x91 */
+ uint8_t ver_mid; /* 0x92 */
+ uint8_t ver_lo; /* 0x93 */
+ uint8_t pad[364];
+} __attribute__ ((packed));
+
+struct tplink_fw_header {
+ uint32_t version;
+ union {
+ struct fw_v1 v1;
+ struct fw_v2 v2;
+ };
+};
+
+static int mtdsplit_parse_tplink(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct tplink_fw_header hdr;
+ size_t hdr_len, retlen, kernel_size;
+ size_t rootfs_offset;
+ struct mtd_partition *parts;
+ int err;
+
+ hdr_len = sizeof(hdr);
+ err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != hdr_len)
+ return -EIO;
+
+ switch (le32_to_cpu(hdr.version)) {
+ case 1:
+ if (be32_to_cpu(hdr.v1.kernel_ofs) != sizeof(hdr))
+ return -EINVAL;
+
+ kernel_size = sizeof(hdr) + be32_to_cpu(hdr.v1.kernel_len);
+ rootfs_offset = be32_to_cpu(hdr.v1.rootfs_ofs);
+ break;
+ case 2:
+ case 3:
+ if (be32_to_cpu(hdr.v2.kernel_ofs) != sizeof(hdr))
+ return -EINVAL;
+
+ kernel_size = sizeof(hdr) + be32_to_cpu(hdr.v2.kernel_len);
+ rootfs_offset = be32_to_cpu(hdr.v2.rootfs_ofs);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (kernel_size > master->size)
+ return -EINVAL;
+
+ /* Find the rootfs */
+ err = mtd_check_rootfs_magic(master, rootfs_offset, NULL);
+ if (err) {
+ /*
+ * The size in the header might cover the rootfs as well.
+ * Start the search from an arbitrary offset.
+ */
+ err = mtd_find_rootfs_from(master, TPLINK_MIN_ROOTFS_OFFS,
+ master->size, &rootfs_offset, NULL);
+ if (err)
+ return err;
+ }
+
+ parts = kzalloc(TPLINK_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = kernel_size;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return TPLINK_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_tplink_of_match_table[] = {
+ { .compatible = "tplink,firmware" },
+ {},
+};
+
+static struct mtd_part_parser mtdsplit_tplink_parser = {
+ .owner = THIS_MODULE,
+ .name = "tplink-fw",
+ .of_match_table = mtdsplit_tplink_of_match_table,
+ .parse_fn = mtdsplit_parse_tplink,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_tplink_init(void)
+{
+ register_mtd_parser(&mtdsplit_tplink_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_tplink_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_trx.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_trx.c
new file mode 100644
index 0000000..b853ec9
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_trx.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define TRX_MAGIC 0x30524448 /* "HDR0" */
+
+struct trx_header {
+ __le32 magic;
+ __le32 len;
+ __le32 crc32;
+ __le32 flag_version;
+ __le32 offset[4];
+};
+
+static int
+read_trx_header(struct mtd_info *mtd, size_t offset,
+ struct trx_header *header)
+{
+ size_t header_len;
+ size_t retlen;
+ int ret;
+
+ header_len = sizeof(*header);
+ ret = mtd_read(mtd, offset, header_len, &retlen,
+ (unsigned char *) header);
+ if (ret) {
+ pr_debug("read error in \"%s\"\n", mtd->name);
+ return ret;
+ }
+
+ if (retlen != header_len) {
+ pr_debug("short read in \"%s\"\n", mtd->name);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static int
+mtdsplit_parse_trx(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *parts;
+ struct trx_header hdr;
+ int nr_parts;
+ size_t offset;
+ size_t trx_offset;
+ size_t trx_size = 0;
+ size_t rootfs_offset;
+ size_t rootfs_size = 0;
+ int ret;
+
+ nr_parts = 2;
+ parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ /* find trx image on erase block boundaries */
+ for (offset = 0; offset < master->size; offset += master->erasesize) {
+ trx_size = 0;
+
+ ret = read_trx_header(master, offset, &hdr);
+ if (ret)
+ continue;
+
+ if (hdr.magic != cpu_to_le32(TRX_MAGIC)) {
+ pr_debug("no valid trx header found in \"%s\" at offset %llx\n",
+ master->name, (unsigned long long) offset);
+ continue;
+ }
+
+ trx_size = le32_to_cpu(hdr.len);
+ if ((offset + trx_size) > master->size) {
+ pr_debug("trx image exceeds MTD device \"%s\"\n",
+ master->name);
+ continue;
+ }
+ break;
+ }
+
+ if (trx_size == 0) {
+ pr_debug("no trx header found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err;
+ }
+
+ trx_offset = offset + hdr.offset[0];
+ rootfs_offset = offset + hdr.offset[1];
+ rootfs_size = master->size - rootfs_offset;
+ trx_size = rootfs_offset - trx_offset;
+
+ if (rootfs_size == 0) {
+ pr_debug("no rootfs found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err;
+ }
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = trx_offset;
+ parts[0].size = trx_size;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = rootfs_size;
+
+ *pparts = parts;
+ return nr_parts;
+
+err:
+ kfree(parts);
+ return ret;
+}
+
+static const struct of_device_id trx_parser_of_match_table[] = {
+ { .compatible = "openwrt,trx" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, trx_parser_of_match_table);
+
+static struct mtd_part_parser trx_parser = {
+ .owner = THIS_MODULE,
+ .name = "trx-fw",
+ .of_match_table = trx_parser_of_match_table,
+ .parse_fn = mtdsplit_parse_trx,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_trx_init(void)
+{
+ register_mtd_parser(&trx_parser);
+
+ return 0;
+}
+
+module_init(mtdsplit_trx_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_uimage.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_uimage.c
new file mode 100644
index 0000000..a6e50b5
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_uimage.c
@@ -0,0 +1,498 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/version.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+/*
+ * uimage_header itself is only 64B, but it may be prepended with another data.
+ * Currently the biggest size is for Fon(Foxconn) devices: 64B + 32B
+ */
+#define MAX_HEADER_LEN 96
+
+#define IH_MAGIC 0x27051956 /* Image Magic Number */
+#define IH_NMLEN 32 /* Image Name Length */
+
+#define IH_OS_LINUX 5 /* Linux */
+
+#define IH_TYPE_KERNEL 2 /* OS Kernel Image */
+#define IH_TYPE_FILESYSTEM 7 /* Filesystem Image */
+
+/*
+ * Legacy format image header,
+ * all data in network byte order (aka natural aka bigendian).
+ */
+struct uimage_header {
+ uint32_t ih_magic; /* Image Header Magic Number */
+ uint32_t ih_hcrc; /* Image Header CRC Checksum */
+ uint32_t ih_time; /* Image Creation Timestamp */
+ uint32_t ih_size; /* Image Data Size */
+ uint32_t ih_load; /* Data Load Address */
+ uint32_t ih_ep; /* Entry Point Address */
+ uint32_t ih_dcrc; /* Image Data CRC Checksum */
+ uint8_t ih_os; /* Operating System */
+ uint8_t ih_arch; /* CPU architecture */
+ uint8_t ih_type; /* Image Type */
+ uint8_t ih_comp; /* Compression Type */
+ uint8_t ih_name[IH_NMLEN]; /* Image Name */
+};
+
+static int
+read_uimage_header(struct mtd_info *mtd, size_t offset, u_char *buf,
+ size_t header_len)
+{
+ size_t retlen;
+ int ret;
+
+ ret = mtd_read(mtd, offset, header_len, &retlen, buf);
+ if (ret) {
+ pr_debug("read error in \"%s\"\n", mtd->name);
+ return ret;
+ }
+
+ if (retlen != header_len) {
+ pr_debug("short read in \"%s\"\n", mtd->name);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+/**
+ * __mtdsplit_parse_uimage - scan partition and create kernel + rootfs parts
+ *
+ * @find_header: function to call for a block of data that will return offset
+ * and tail padding length of a valid uImage header if found
+ */
+static int __mtdsplit_parse_uimage(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data,
+ ssize_t (*find_header)(u_char *buf, size_t len, int *extralen))
+{
+ struct mtd_partition *parts;
+ u_char *buf;
+ int nr_parts;
+ size_t offset;
+ size_t uimage_offset;
+ size_t uimage_size = 0;
+ size_t rootfs_offset;
+ size_t rootfs_size = 0;
+ int uimage_part, rf_part;
+ int ret;
+ int extralen;
+ enum mtdsplit_part_type type;
+
+ nr_parts = 2;
+ parts = kzalloc(nr_parts * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ buf = vmalloc(MAX_HEADER_LEN);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_free_parts;
+ }
+
+ /* find uImage on erase block boundaries */
+ for (offset = 0; offset < master->size; offset += master->erasesize) {
+ struct uimage_header *header;
+
+ uimage_size = 0;
+
+ ret = read_uimage_header(master, offset, buf, MAX_HEADER_LEN);
+ if (ret)
+ continue;
+
+ extralen = 0;
+ ret = find_header(buf, MAX_HEADER_LEN, &extralen);
+ if (ret < 0) {
+ pr_debug("no valid uImage found in \"%s\" at offset %llx\n",
+ master->name, (unsigned long long) offset);
+ continue;
+ }
+ header = (struct uimage_header *)(buf + ret);
+
+ uimage_size = sizeof(*header) +
+ be32_to_cpu(header->ih_size) + ret + extralen;
+
+ if ((offset + uimage_size) > master->size) {
+ pr_debug("uImage exceeds MTD device \"%s\"\n",
+ master->name);
+ continue;
+ }
+ break;
+ }
+
+ if (uimage_size == 0) {
+ pr_debug("no uImage found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err_free_buf;
+ }
+
+ uimage_offset = offset;
+
+ if (uimage_offset == 0) {
+ uimage_part = 0;
+ rf_part = 1;
+
+ /* find the roots after the uImage */
+ ret = mtd_find_rootfs_from(master, uimage_offset + uimage_size,
+ master->size, &rootfs_offset, &type);
+ if (ret) {
+ pr_debug("no rootfs after uImage in \"%s\"\n",
+ master->name);
+ goto err_free_buf;
+ }
+
+ rootfs_size = master->size - rootfs_offset;
+ uimage_size = rootfs_offset - uimage_offset;
+ } else {
+ rf_part = 0;
+ uimage_part = 1;
+
+ /* check rootfs presence at offset 0 */
+ ret = mtd_check_rootfs_magic(master, 0, &type);
+ if (ret) {
+ pr_debug("no rootfs before uImage in \"%s\"\n",
+ master->name);
+ goto err_free_buf;
+ }
+
+ rootfs_offset = 0;
+ rootfs_size = uimage_offset;
+ }
+
+ if (rootfs_size == 0) {
+ pr_debug("no rootfs found in \"%s\"\n", master->name);
+ ret = -ENODEV;
+ goto err_free_buf;
+ }
+
+ parts[uimage_part].name = KERNEL_PART_NAME;
+ parts[uimage_part].offset = uimage_offset;
+ parts[uimage_part].size = uimage_size;
+
+ if (type == MTDSPLIT_PART_TYPE_UBI)
+ parts[rf_part].name = UBI_PART_NAME;
+ else
+ parts[rf_part].name = ROOTFS_PART_NAME;
+ parts[rf_part].offset = rootfs_offset;
+ parts[rf_part].size = rootfs_size;
+
+ vfree(buf);
+
+ *pparts = parts;
+ return nr_parts;
+
+err_free_buf:
+ vfree(buf);
+
+err_free_parts:
+ kfree(parts);
+ return ret;
+}
+
+static ssize_t uimage_verify_default(u_char *buf, size_t len, int *extralen)
+{
+ struct uimage_header *header = (struct uimage_header *)buf;
+
+ /* default sanity checks */
+ if (be32_to_cpu(header->ih_magic) != IH_MAGIC) {
+ pr_debug("invalid uImage magic: %08x\n",
+ be32_to_cpu(header->ih_magic));
+ return -EINVAL;
+ }
+
+ if (header->ih_os != IH_OS_LINUX) {
+ pr_debug("invalid uImage OS: %08x\n",
+ be32_to_cpu(header->ih_os));
+ return -EINVAL;
+ }
+
+ if (header->ih_type != IH_TYPE_KERNEL) {
+ pr_debug("invalid uImage type: %08x\n",
+ be32_to_cpu(header->ih_type));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+mtdsplit_uimage_parse_generic(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_uimage(master, pparts, data,
+ uimage_verify_default);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+static const struct of_device_id mtdsplit_uimage_of_match_table[] = {
+ { .compatible = "denx,uimage" },
+ {},
+};
+#endif
+
+static struct mtd_part_parser uimage_generic_parser = {
+ .owner = THIS_MODULE,
+ .name = "uimage-fw",
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+ .of_match_table = mtdsplit_uimage_of_match_table,
+#endif
+ .parse_fn = mtdsplit_uimage_parse_generic,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+#define FW_MAGIC_WNR2000V1 0x32303031
+#define FW_MAGIC_WNR2000V3 0x32303033
+#define FW_MAGIC_WNR2000V4 0x32303034
+#define FW_MAGIC_WNR2200 0x32323030
+#define FW_MAGIC_WNR612V2 0x32303631
+#define FW_MAGIC_WNR1000V2 0x31303031
+#define FW_MAGIC_WNR1000V2_VC 0x31303030
+#define FW_MAGIC_WNDR3700 0x33373030
+#define FW_MAGIC_WNDR3700V2 0x33373031
+#define FW_MAGIC_WPN824N 0x31313030
+
+static ssize_t uimage_verify_wndr3700(u_char *buf, size_t len, int *extralen)
+{
+ struct uimage_header *header = (struct uimage_header *)buf;
+ uint8_t expected_type = IH_TYPE_FILESYSTEM;
+
+ switch (be32_to_cpu(header->ih_magic)) {
+ case FW_MAGIC_WNR612V2:
+ case FW_MAGIC_WNR1000V2:
+ case FW_MAGIC_WNR1000V2_VC:
+ case FW_MAGIC_WNR2000V1:
+ case FW_MAGIC_WNR2000V3:
+ case FW_MAGIC_WNR2200:
+ case FW_MAGIC_WNDR3700:
+ case FW_MAGIC_WNDR3700V2:
+ case FW_MAGIC_WPN824N:
+ break;
+ case FW_MAGIC_WNR2000V4:
+ expected_type = IH_TYPE_KERNEL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ if (header->ih_os != IH_OS_LINUX ||
+ header->ih_type != expected_type)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int
+mtdsplit_uimage_parse_netgear(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_uimage(master, pparts, data,
+ uimage_verify_wndr3700);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+static const struct of_device_id mtdsplit_uimage_netgear_of_match_table[] = {
+ { .compatible = "netgear,uimage" },
+ {},
+};
+#endif
+
+static struct mtd_part_parser uimage_netgear_parser = {
+ .owner = THIS_MODULE,
+ .name = "netgear-fw",
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+ .of_match_table = mtdsplit_uimage_netgear_of_match_table,
+#endif
+ .parse_fn = mtdsplit_uimage_parse_netgear,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+/**************************************************
+ * Edimax
+ **************************************************/
+
+#define FW_EDIMAX_OFFSET 20
+#define FW_MAGIC_EDIMAX 0x43535953
+
+static ssize_t uimage_find_edimax(u_char *buf, size_t len, int *extralen)
+{
+ u32 *magic;
+
+ if (len < FW_EDIMAX_OFFSET + sizeof(struct uimage_header)) {
+ pr_err("Buffer too small for checking Edimax header\n");
+ return -ENOSPC;
+ }
+
+ magic = (u32 *)buf;
+ if (be32_to_cpu(*magic) != FW_MAGIC_EDIMAX)
+ return -EINVAL;
+
+ if (!uimage_verify_default(buf + FW_EDIMAX_OFFSET, len, extralen))
+ return FW_EDIMAX_OFFSET;
+
+ return -EINVAL;
+}
+
+static int
+mtdsplit_uimage_parse_edimax(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_uimage(master, pparts, data,
+ uimage_find_edimax);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+static const struct of_device_id mtdsplit_uimage_edimax_of_match_table[] = {
+ { .compatible = "edimax,uimage" },
+ {},
+};
+#endif
+
+static struct mtd_part_parser uimage_edimax_parser = {
+ .owner = THIS_MODULE,
+ .name = "edimax-fw",
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+ .of_match_table = mtdsplit_uimage_edimax_of_match_table,
+#endif
+ .parse_fn = mtdsplit_uimage_parse_edimax,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+
+/**************************************************
+ * Fon(Foxconn)
+ **************************************************/
+
+#define FONFXC_PAD_LEN 32
+
+static ssize_t uimage_find_fonfxc(u_char *buf, size_t len, int *extralen)
+{
+ if (uimage_verify_default(buf, len, extralen) < 0)
+ return -EINVAL;
+
+ *extralen = FONFXC_PAD_LEN;
+
+ return 0;
+}
+
+static int
+mtdsplit_uimage_parse_fonfxc(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_uimage(master, pparts, data,
+ uimage_find_fonfxc);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+static const struct of_device_id mtdsplit_uimage_fonfxc_of_match_table[] = {
+ { .compatible = "fonfxc,uimage" },
+ {},
+};
+#endif
+
+static struct mtd_part_parser uimage_fonfxc_parser = {
+ .owner = THIS_MODULE,
+ .name = "fonfxc-fw",
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+ .of_match_table = mtdsplit_uimage_fonfxc_of_match_table,
+#endif
+ .parse_fn = mtdsplit_uimage_parse_fonfxc,
+};
+
+/**************************************************
+ * OKLI (OpenWrt Kernel Loader Image)
+ **************************************************/
+
+#define IH_MAGIC_OKLI 0x4f4b4c49
+
+static ssize_t uimage_verify_okli(u_char *buf, size_t len, int *extralen)
+{
+ struct uimage_header *header = (struct uimage_header *)buf;
+
+ /* default sanity checks */
+ if (be32_to_cpu(header->ih_magic) != IH_MAGIC_OKLI) {
+ pr_debug("invalid uImage magic: %08x\n",
+ be32_to_cpu(header->ih_magic));
+ return -EINVAL;
+ }
+
+ if (header->ih_os != IH_OS_LINUX) {
+ pr_debug("invalid uImage OS: %08x\n",
+ be32_to_cpu(header->ih_os));
+ return -EINVAL;
+ }
+
+ if (header->ih_type != IH_TYPE_KERNEL) {
+ pr_debug("invalid uImage type: %08x\n",
+ be32_to_cpu(header->ih_type));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+mtdsplit_uimage_parse_okli(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ return __mtdsplit_parse_uimage(master, pparts, data,
+ uimage_verify_okli);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+static const struct of_device_id mtdsplit_uimage_okli_of_match_table[] = {
+ { .compatible = "openwrt,okli" },
+ {},
+};
+#endif
+
+static struct mtd_part_parser uimage_okli_parser = {
+ .owner = THIS_MODULE,
+ .name = "okli-fw",
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0)
+ .of_match_table = mtdsplit_uimage_okli_of_match_table,
+#endif
+ .parse_fn = mtdsplit_uimage_parse_okli,
+};
+
+/**************************************************
+ * Init
+ **************************************************/
+
+static int __init mtdsplit_uimage_init(void)
+{
+ register_mtd_parser(&uimage_generic_parser);
+ register_mtd_parser(&uimage_netgear_parser);
+ register_mtd_parser(&uimage_edimax_parser);
+ register_mtd_parser(&uimage_fonfxc_parser);
+ register_mtd_parser(&uimage_okli_parser);
+
+ return 0;
+}
+
+module_init(mtdsplit_uimage_init);
diff --git a/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_wrgg.c b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_wrgg.c
new file mode 100644
index 0000000..dfd6058
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/mtd/mtdsplit/mtdsplit_wrgg.c
@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2013 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2016 Stijn Tintel <stijn@linux-ipv6.be>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/byteorder/generic.h>
+#include <linux/of.h>
+
+#include "mtdsplit.h"
+
+#define WRGG_NR_PARTS 2
+#define WRGG_MIN_ROOTFS_OFFS 0x80000 /* 512KiB */
+#define WRGG03_MAGIC 0x20080321
+#define WRG_MAGIC 0x20040220
+
+struct wrgg03_header {
+ char signature[32];
+ uint32_t magic1;
+ uint32_t magic2;
+ char version[16];
+ char model[16];
+ uint32_t flag[2];
+ uint32_t reserve[2];
+ char buildno[16];
+ uint32_t size;
+ uint32_t offset;
+ char devname[32];
+ char digest[16];
+} __attribute__ ((packed));
+
+struct wrg_header {
+ char signature[32];
+ uint32_t magic1;
+ uint32_t magic2;
+ uint32_t size;
+ uint32_t offset;
+ char devname[32];
+ char digest[16];
+} __attribute__ ((packed));
+
+
+static int mtdsplit_parse_wrgg(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct wrgg03_header hdr;
+ size_t hdr_len, retlen, kernel_ent_size;
+ size_t rootfs_offset;
+ struct mtd_partition *parts;
+ enum mtdsplit_part_type type;
+ int err;
+
+ hdr_len = sizeof(hdr);
+ err = mtd_read(master, 0, hdr_len, &retlen, (void *) &hdr);
+ if (err)
+ return err;
+
+ if (retlen != hdr_len)
+ return -EIO;
+
+ /* sanity checks */
+ if (le32_to_cpu(hdr.magic1) == WRGG03_MAGIC) {
+ kernel_ent_size = hdr_len + be32_to_cpu(hdr.size);
+ /*
+ * If this becomes silly big it's probably because the
+ * WRGG image is little-endian.
+ */
+ if (kernel_ent_size > master->size)
+ kernel_ent_size = hdr_len + le32_to_cpu(hdr.size);
+
+ /* Now what ?! It's neither */
+ if (kernel_ent_size > master->size)
+ return -EINVAL;
+ } else if (le32_to_cpu(hdr.magic1) == WRG_MAGIC) {
+ kernel_ent_size = sizeof(struct wrg_header) + le32_to_cpu(
+ ((struct wrg_header*)&hdr)->size);
+ } else {
+ return -EINVAL;
+ }
+
+ if (kernel_ent_size > master->size)
+ return -EINVAL;
+
+ /*
+ * The size in the header covers the rootfs as well.
+ * Start the search from an arbitrary offset.
+ */
+ err = mtd_find_rootfs_from(master, WRGG_MIN_ROOTFS_OFFS,
+ master->size, &rootfs_offset, &type);
+ if (err)
+ return err;
+
+ parts = kzalloc(WRGG_NR_PARTS * sizeof(*parts), GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ parts[0].name = KERNEL_PART_NAME;
+ parts[0].offset = 0;
+ parts[0].size = rootfs_offset;
+
+ parts[1].name = ROOTFS_PART_NAME;
+ parts[1].offset = rootfs_offset;
+ parts[1].size = master->size - rootfs_offset;
+
+ *pparts = parts;
+ return WRGG_NR_PARTS;
+}
+
+static const struct of_device_id mtdsplit_wrgg_of_match_table[] = {
+ { .compatible = "wrg" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtdsplit_wrgg_of_match_table);
+
+static struct mtd_part_parser mtdsplit_wrgg_parser = {
+ .owner = THIS_MODULE,
+ .name = "wrgg-fw",
+ .of_match_table = mtdsplit_wrgg_of_match_table,
+ .parse_fn = mtdsplit_parse_wrgg,
+ .type = MTD_PARSER_TYPE_FIRMWARE,
+};
+
+static int __init mtdsplit_wrgg_init(void)
+{
+ register_mtd_parser(&mtdsplit_wrgg_parser);
+
+ return 0;
+}
+
+subsys_initcall(mtdsplit_wrgg_init);