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-rw-r--r--target/linux/ramips/patches-3.9/0208-owrt-mtd-split.patch151
1 files changed, 0 insertions, 151 deletions
diff --git a/target/linux/ramips/patches-3.9/0208-owrt-mtd-split.patch b/target/linux/ramips/patches-3.9/0208-owrt-mtd-split.patch
deleted file mode 100644
index f15d16f6da..0000000000
--- a/target/linux/ramips/patches-3.9/0208-owrt-mtd-split.patch
+++ /dev/null
@@ -1,151 +0,0 @@
-From 2a295753a10823a47542c779a25bbb1f52c71281 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Fri, 3 Aug 2012 10:27:13 +0200
-Subject: [PATCH 19/25] owrt mtd split
-
----
- .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h | 1 +
- arch/mips/lantiq/setup.c | 7 +
- drivers/mtd/Kconfig | 4 +
- drivers/mtd/mtdpart.c | 173 +++++++++++++++++++-
- 4 files changed, 184 insertions(+), 1 deletions(-)
-
---- a/drivers/mtd/Kconfig
-+++ b/drivers/mtd/Kconfig
-@@ -31,6 +31,10 @@ config MTD_ROOTFS_SPLIT
- bool "Automatically split 'rootfs' partition for squashfs"
- default y
-
-+config MTD_UIMAGE_SPLIT
-+ bool "Automatically split 'linux' partition into 'kernel' and 'rootfs'"
-+ default y
-+
- config MTD_REDBOOT_PARTS
- tristate "RedBoot partition table parsing"
- ---help---
---- a/drivers/mtd/mtdpart.c
-+++ b/drivers/mtd/mtdpart.c
-@@ -833,6 +833,99 @@ static int refresh_rootfs_split(struct m
- }
- #endif /* CONFIG_MTD_ROOTFS_SPLIT */
-
-+#ifdef CONFIG_MTD_UIMAGE_SPLIT
-+static unsigned long find_uimage_size(struct mtd_info *mtd,
-+ unsigned long offset)
-+{
-+#define UBOOT_MAGIC 0x56190527
-+ unsigned long magic = 0;
-+ unsigned long temp;
-+ size_t len;
-+ int ret;
-+
-+ ret = mtd_read(mtd, offset, 4, &len, (void *)&magic);
-+ if (ret || len != sizeof(magic))
-+ return 0;
-+
-+ if (le32_to_cpu(magic) != UBOOT_MAGIC)
-+ return 0;
-+
-+ ret = mtd_read(mtd, offset + 12, 4, &len, (void *)&temp);
-+ if (ret || len != sizeof(temp))
-+ return 0;
-+
-+ return be32_to_cpu(temp) + 0x40;
-+}
-+
-+static int detect_squashfs_partition(struct mtd_info *mtd, unsigned long offset)
-+{
-+ unsigned long temp;
-+ size_t len;
-+ int ret;
-+
-+ ret = mtd_read(mtd, offset, 4, &len, (void *)&temp);
-+ if (ret || len != sizeof(temp))
-+ return 0;
-+
-+ return le32_to_cpu(temp) == SQUASHFS_MAGIC;
-+}
-+
-+static unsigned long find_squashfs_offset(struct mtd_info *mtd, unsigned long _offset)
-+{
-+ /* scan the first 2MB at 64K offsets */
-+ int i;
-+
-+ for (i = 0; i < 32; i++) {
-+ unsigned long offset = i * 64 * 1024;
-+ if (detect_squashfs_partition(mtd, _offset + offset))
-+ return offset;
-+ }
-+ return 0;
-+}
-+
-+static int split_uimage(struct mtd_info *mtd,
-+ const struct mtd_partition *part)
-+{
-+ static struct mtd_partition split_partitions[] = {
-+ {
-+ .name = "kernel",
-+ .offset = 0x0,
-+ .size = 0x0,
-+ }, {
-+ .name = "rootfs",
-+ .offset = 0x0,
-+ .size = 0x0,
-+ },
-+ };
-+
-+ split_partitions[0].size = find_uimage_size(mtd, part->offset);
-+ if (!split_partitions[0].size) {
-+ split_partitions[0].size = find_squashfs_offset(mtd, part->offset);
-+ if (!split_partitions[0].size) {
-+ pr_err("failed to split firmware partition\n");
-+ return -1;
-+ }
-+ }
-+
-+ if (!detect_squashfs_partition(mtd,
-+ part->offset
-+ + split_partitions[0].size)) {
-+ split_partitions[0].size &= ~(mtd->erasesize - 1);
-+ split_partitions[0].size += mtd->erasesize;
-+ } else {
-+ pr_info("found squashfs behind kernel\n");
-+ }
-+
-+ split_partitions[0].offset = part->offset;
-+ split_partitions[1].offset = part->offset + split_partitions[0].size;
-+ split_partitions[1].size = part->size - split_partitions[0].size;
-+
-+ add_mtd_partitions(mtd, split_partitions, 2);
-+
-+ return 0;
-+}
-+#endif
-+
- /*
- * 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
-@@ -849,7 +942,7 @@ int add_mtd_partitions(struct mtd_info *
- struct mtd_part *slave;
- uint64_t cur_offset = 0;
- int i;
--#ifdef CONFIG_MTD_ROOTFS_SPLIT
-+#if defined(CONFIG_MTD_ROOTFS_SPLIT) || defined(CONFIG_MTD_UIMAGE_SPLIT)
- int ret;
- #endif
-
-@@ -866,6 +959,14 @@ int add_mtd_partitions(struct mtd_info *
-
- add_mtd_device(&slave->mtd);
-
-+#ifdef CONFIG_MTD_UIMAGE_SPLIT
-+ if (!strcmp(parts[i].name, "firmware")) {
-+ ret = split_uimage(master, &parts[i]);
-+ if (ret)
-+ printk(KERN_WARNING "Can't split firmware partition\n");
-+ }
-+#endif
-+
- if (!strcmp(parts[i].name, "rootfs")) {
- #ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
- if (ROOT_DEV == 0) {