diff options
Diffstat (limited to 'target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch')
| -rw-r--r-- | target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch | 59 |
1 files changed, 3 insertions, 56 deletions
diff --git a/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch b/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch index e618dd6224..ede59104b3 100644 --- a/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch +++ b/target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch @@ -1,6 +1,6 @@ --- a/drivers/mtd/Kconfig +++ b/drivers/mtd/Kconfig -@@ -12,6 +12,33 @@ menuconfig MTD +@@ -12,6 +12,28 @@ menuconfig MTD if MTD @@ -10,11 +10,6 @@ + bool "Automatically set 'rootfs' partition to be root filesystem" + default y + -+config MTD_ROOTFS_SPLIT -+ bool "Automatically split 'rootfs' partition for squashfs" -+ select MTD_SPLIT -+ default y -+ +config MTD_SPLIT_FIRMWARE + bool "Automatically split firmware partition for kernel+rootfs" + default y @@ -125,7 +120,7 @@ int mtd_del_partition(struct mtd_info *master, int partno) { struct mtd_part *slave, *next; -@@ -614,6 +628,122 @@ int mtd_del_partition(struct mtd_info *m +@@ -614,6 +628,74 @@ int mtd_del_partition(struct mtd_info *m } EXPORT_SYMBOL_GPL(mtd_del_partition); @@ -140,47 +135,6 @@ + return len; +} + -+static int split_squashfs(struct mtd_info *master, int offset, int *split_offset) -+{ -+ size_t squashfs_len; -+ int len, ret; -+ -+ ret = mtd_get_squashfs_len(master, offset, &squashfs_len); -+ if (ret) -+ return ret; -+ -+ len = mtd_pad_erasesize(master, offset, squashfs_len); -+ *split_offset = offset + len; -+ -+ return 0; -+} -+ -+static void split_rootfs_data(struct mtd_info *master, struct mtd_part *part) -+{ -+ unsigned int split_offset = 0; -+ unsigned int split_size; -+ int ret; -+ -+ ret = split_squashfs(master, part->offset, &split_offset); -+ if (ret) -+ return; -+ -+ if (split_offset <= 0) -+ return; -+ -+ if (config_enabled(CONFIG_MTD_SPLIT_SQUASHFS_ROOT)) -+ pr_err("Dedicated partitioner didn't create \"rootfs_data\" partition, please fill a bug report!\n"); -+ else -+ pr_warn("Support for built-in \"rootfs_data\" splitter will be removed, please use CONFIG_MTD_SPLIT_SQUASHFS_ROOT\n"); -+ -+ split_size = part->mtd.size - (split_offset - part->offset); -+ printk(KERN_INFO "mtd: partition \"%s\" created automatically, ofs=0x%x, len=0x%x\n", -+ ROOTFS_SPLIT_NAME, split_offset, split_size); -+ -+ __mtd_add_partition(master, ROOTFS_SPLIT_NAME, split_offset, -+ split_size, false); -+} -+ +#define UBOOT_MAGIC 0x27051956 + +static void split_uimage(struct mtd_info *master, struct mtd_part *part) @@ -231,13 +185,6 @@ + if (rootfs_found) + return; + -+ if (!strcmp(part->mtd.name, "rootfs")) { -+ rootfs_found = 1; -+ -+ if (config_enabled(CONFIG_MTD_ROOTFS_SPLIT)) -+ split_rootfs_data(master, part); -+ } -+ + if (!strcmp(part->mtd.name, SPLIT_FIRMWARE_NAME) && + config_enabled(CONFIG_MTD_SPLIT_FIRMWARE)) + split_firmware(master, part); @@ -248,7 +195,7 @@ /* * 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 -@@ -643,6 +773,7 @@ int add_mtd_partitions(struct mtd_info * +@@ -643,6 +725,7 @@ int add_mtd_partitions(struct mtd_info * mutex_unlock(&mtd_partitions_mutex); add_mtd_device(&slave->mtd); |