diff options
Diffstat (limited to 'target/linux/generic/patches-3.10')
| -rw-r--r-- | target/linux/generic/patches-3.10/405-mtd-add-more-helper-functions.patch | 83 | ||||
| -rw-r--r-- | target/linux/generic/patches-3.10/406-mtd-add-squashfs-parser.patch | 30 |
2 files changed, 113 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.10/405-mtd-add-more-helper-functions.patch b/target/linux/generic/patches-3.10/405-mtd-add-more-helper-functions.patch new file mode 100644 index 0000000000..4e54b1bf9d --- /dev/null +++ b/target/linux/generic/patches-3.10/405-mtd-add-more-helper-functions.patch @@ -0,0 +1,83 @@ +--- a/drivers/mtd/mtdpart.c ++++ b/drivers/mtd/mtdpart.c +@@ -435,14 +435,12 @@ static struct mtd_part *allocate_partiti + if (slave->offset == MTDPART_OFS_APPEND) + slave->offset = cur_offset; + if (slave->offset == MTDPART_OFS_NXTBLK) { +- slave->offset = cur_offset; +- if (mtd_mod_by_eb(cur_offset, master) != 0) { +- /* Round up to next erasesize */ +- slave->offset = (mtd_div_by_eb(cur_offset, master) + 1) * master->erasesize; ++ /* Round up to next erasesize */ ++ slave->offset = mtd_roundup_to_eb(cur_offset, master); ++ if (slave->offset != cur_offset) + printk(KERN_NOTICE "Moving partition %d: " + "0x%012llx -> 0x%012llx\n", partno, + (unsigned long long)cur_offset, (unsigned long long)slave->offset); +- } + } + if (slave->offset == MTDPART_OFS_RETAIN) { + slave->offset = cur_offset; +@@ -996,6 +994,24 @@ int mtd_is_partition(const struct mtd_in + } + EXPORT_SYMBOL_GPL(mtd_is_partition); + ++struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd) ++{ ++ if (!mtd_is_partition(mtd)) ++ return (struct mtd_info *)mtd; ++ ++ return PART(mtd)->master; ++} ++EXPORT_SYMBOL_GPL(mtdpart_get_master); ++ ++uint64_t mtdpart_get_offset(const struct mtd_info *mtd) ++{ ++ if (!mtd_is_partition(mtd)) ++ return 0; ++ ++ return PART(mtd)->offset; ++} ++EXPORT_SYMBOL_GPL(mtdpart_get_offset); ++ + /* Returns the size of the entire flash chip */ + uint64_t mtd_get_device_size(const struct mtd_info *mtd) + { +--- a/include/linux/mtd/partitions.h ++++ b/include/linux/mtd/partitions.h +@@ -90,6 +90,8 @@ int mtd_is_partition(const struct mtd_in + int mtd_add_partition(struct mtd_info *master, char *name, + long long offset, long long length); + int mtd_del_partition(struct mtd_info *master, int partno); ++struct mtd_info *mtdpart_get_master(const struct mtd_info *mtd); ++uint64_t mtdpart_get_offset(const struct mtd_info *mtd); + uint64_t mtd_get_device_size(const struct mtd_info *mtd); + extern void __weak arch_split_mtd_part(struct mtd_info *master, + const char *name, int offset, int size); +--- a/include/linux/mtd/mtd.h ++++ b/include/linux/mtd/mtd.h +@@ -331,6 +331,24 @@ static inline uint32_t mtd_mod_by_eb(uin + return do_div(sz, mtd->erasesize); + } + ++static inline uint64_t mtd_roundup_to_eb(uint64_t sz, struct mtd_info *mtd) ++{ ++ if (mtd_mod_by_eb(sz, mtd) == 0) ++ return sz; ++ ++ /* Round up to next erase block */ ++ return (mtd_div_by_eb(sz, mtd) + 1) * mtd->erasesize; ++} ++ ++static inline uint64_t mtd_rounddown_to_eb(uint64_t sz, struct mtd_info *mtd) ++{ ++ if (mtd_mod_by_eb(sz, mtd) == 0) ++ return sz; ++ ++ /* Round down to the start of the current erase block */ ++ return (mtd_div_by_eb(sz, mtd)) * mtd->erasesize; ++} ++ + static inline uint32_t mtd_div_by_ws(uint64_t sz, struct mtd_info *mtd) + { + if (mtd->writesize_shift) diff --git a/target/linux/generic/patches-3.10/406-mtd-add-squashfs-parser.patch b/target/linux/generic/patches-3.10/406-mtd-add-squashfs-parser.patch new file mode 100644 index 0000000000..b3ff9d9ab2 --- /dev/null +++ b/target/linux/generic/patches-3.10/406-mtd-add-squashfs-parser.patch @@ -0,0 +1,30 @@ +--- a/drivers/mtd/Kconfig ++++ b/drivers/mtd/Kconfig +@@ -37,6 +37,17 @@ config MTD_UIMAGE_SPLIT + depends on MTD_SPLIT_FIRMWARE + default y + ++comment "Rootfs partition parsers" ++ ++config MTD_SPLIT_SQUASHFS_ROOT ++ bool "Squashfs based root partition parser" ++ 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. ++ + config MTD_SPLIT + def_bool n + help +--- a/drivers/mtd/Makefile ++++ b/drivers/mtd/Makefile +@@ -7,6 +7,7 @@ obj-$(CONFIG_MTD) += mtd.o + mtd-y := mtdcore.o mtdsuper.o mtdconcat.o mtdpart.o mtdchar.o + + mtd-$(CONFIG_MTD_SPLIT) += mtdsplit.o ++mtd-$(CONFIG_MTD_SPLIT_SQUASHFS_ROOT) += mtdsplit_squashfs.o + + obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o + obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o |