Initial commit

2025-06-24 16:03:39 +02:00
commit f3256cdaf2
6949 changed files with 1441681 additions and 0 deletions
--- a/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
+++ b/target/linux/generic/pending-4.14/400-mtd-add-rootfs-split-support.patch
@@ -0,0 +1,108 @@
+From: Felix Fietkau <nbd@nbd.name>
+Subject: make rootfs split/detection more generic - patch can be moved to generic-2.6 after testing on other platforms
+
+lede-commit: 328e660b31f0937d52c5ae3d6e7029409918a9df
+Signed-off-by: Felix Fietkau <nbd@nbd.name>
+---
+ drivers/mtd/Kconfig            | 17 +++++++++++++++++
+ drivers/mtd/mtdpart.c          | 35 +++++++++++++++++++++++++++++++++++
+ include/linux/mtd/partitions.h |  2 ++
+ 3 files changed, 54 insertions(+)
+
+--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
+@@ -12,6 +12,23 @@ menuconfig MTD
+ 
+ if MTD
+ 
+menu "OpenWrt specific MTD options"
+
+config MTD_ROOTFS_ROOT_DEV
+	bool "Automatically set 'rootfs' partition to be root filesystem"
+	default y
+
+config MTD_SPLIT_FIRMWARE
+	bool "Automatically split firmware partition for kernel+rootfs"
+	default y
+
+config MTD_SPLIT_FIRMWARE_NAME
+	string "Firmware partition name"
+	depends on MTD_SPLIT_FIRMWARE
+	default "firmware"
+
+endmenu
+
+ config MTD_TESTS
+ 	tristate "MTD tests support (DANGEROUS)"
+ 	depends on m
+--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
+@@ -29,11 +29,13 @@
+ #include <linux/kmod.h>
+ #include <linux/mtd/mtd.h>
+ #include <linux/mtd/partitions.h>
+#include <linux/magic.h>
+ #include <linux/of.h>
+ #include <linux/err.h>
+ #include <linux/of.h>
+ 
+ #include "mtdcore.h"
+#include "mtdsplit/mtdsplit.h"
+ 
+ /* Our partition linked list */
+ static LIST_HEAD(mtd_partitions);
+@@ -53,6 +55,8 @@ struct mtd_part {
+ 	struct list_head list;
+ };
+ 
+static void mtd_partition_split(struct mtd_info *master, struct mtd_part *part);
+
+ /*
+  * Given a pointer to the MTD object in the mtd_part structure, we can retrieve
+  * the pointer to that structure.
+@@ -671,6 +675,7 @@ int mtd_add_partition(struct mtd_info *p
+ 	if (ret)
+ 		goto err_remove_part;
+ 
+	mtd_partition_split(parent, new);
+ 	mtd_add_partition_attrs(new);
+ 
+ 	return 0;
+@@ -757,6 +762,29 @@ int mtd_del_partition(struct mtd_info *m
+ }
+ EXPORT_SYMBOL_GPL(mtd_del_partition);
+ 
+#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#define SPLIT_FIRMWARE_NAME	CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#else
+#define SPLIT_FIRMWARE_NAME	"unused"
+#endif
+
+static void split_firmware(struct mtd_info *master, struct mtd_part *part)
+{
+}
+
+static void mtd_partition_split(struct mtd_info *master, struct mtd_part *part)
+{
+	static int rootfs_found = 0;
+
+	if (rootfs_found)
+		return;
+
+	if (IS_ENABLED(CONFIG_MTD_SPLIT_FIRMWARE) &&
+	    !strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) &&
+	    !of_find_property(mtd_get_of_node(&part->mtd), "compatible", NULL))
+		split_firmware(master, part);
+}
+
+ /*
+  * This function, given a master MTD object and a partition table, creates
+  * and registers slave MTD objects which are bound to the master according to
+@@ -797,6 +825,7 @@ int add_mtd_partitions(struct mtd_info *
+ 			goto err_del_partitions;
+ 		}
+ 
+		mtd_partition_split(master, slave);
+ 		mtd_add_partition_attrs(slave);
+ 		/* Look for subpartitions */
+ 		parse_mtd_partitions(&slave->mtd, parts[i].types, NULL);