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-rw-r--r--target/linux/lantiq/patches-3.2/201-owrt-mtd_split.patch245
1 files changed, 0 insertions, 245 deletions
diff --git a/target/linux/lantiq/patches-3.2/201-owrt-mtd_split.patch b/target/linux/lantiq/patches-3.2/201-owrt-mtd_split.patch
deleted file mode 100644
index 62cfc4ec93..0000000000
--- a/target/linux/lantiq/patches-3.2/201-owrt-mtd_split.patch
+++ /dev/null
@@ -1,245 +0,0 @@
---- 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
-@@ -874,6 +874,169 @@ 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 temp + 0x40;
-+}
-+
-+static unsigned long find_eva_size(struct mtd_info *mtd,
-+ unsigned long offset)
-+{
-+#define EVA_MAGIC 0xfeed1281
-+ 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) != EVA_MAGIC)
-+ return 0;
-+
-+ ret = mtd->read(mtd, offset + 4, 4, &len, (void *)&temp);
-+ if (ret || len != sizeof(temp))
-+ return 0;
-+
-+ /* add eva header size */
-+ temp = le32_to_cpu(temp) + 0x18;
-+
-+ temp &= ~0xffff;
-+ temp += 0x10000;
-+ return temp;
-+}
-+
-+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 int detect_eva_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 be32_to_cpu(temp) == SQUASHFS_MAGIC;
-+}
-+
-+static unsigned long find_brnimage_size(struct mtd_info *mtd,
-+ unsigned long offset)
-+{
-+ unsigned long buf[4];
-+ // Assume at most 2MB of kernel image
-+ unsigned long end = offset + (2 << 20);
-+ unsigned long ptr = offset + 0x400 - 12;
-+ size_t len;
-+ int ret;
-+
-+ while (ptr < end) {
-+ long size_min = ptr - 0x400 - 12 - offset;
-+ long size_max = ptr + 12 - offset;
-+ ret = mtd->read(mtd, ptr, 16, &len, (void *)buf);
-+ if (ret || len != 16)
-+ return 0;
-+
-+ if (le32_to_cpu(buf[0]) < size_min ||
-+ le32_to_cpu(buf[0]) > size_max) {
-+ ptr += 0x400;
-+ continue;
-+ }
-+
-+ if (le32_to_cpu(buf[3]) == SQUASHFS_MAGIC)
-+ return ptr + 12 - offset;
-+
-+ ptr += 0x400;
-+ }
-+
-+ 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_eva_size(mtd, part->offset);
-+ if (!split_partitions[0].size) {
-+ split_partitions[0].size = find_brnimage_size(mtd, part->offset);
-+ if (!split_partitions[0].size) {
-+ printk(KERN_NOTICE "no uImage or brnImage or eva found in linux partition\n");
-+ return -1;
-+ }
-+ }
-+ }
-+
-+ if (detect_eva_squashfs_partition(mtd,
-+ part->offset
-+ + split_partitions[0].size)) {
-+ split_partitions[0].size += 0x100;
-+ pr_info("found eva dummy squashfs behind kernel\n");
-+ } else 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
-@@ -890,7 +1053,7 @@ 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
-
-@@ -907,6 +1070,17 @@ int add_mtd_partitions(struct mtd_info *
-
- add_mtd_device(&slave->mtd);
-
-+#ifdef CONFIG_MTD_UIMAGE_SPLIT
-+ if (!strcmp(parts[i].name, "linux")) {
-+ ret = split_uimage(master, &parts[i]);
-+
-+ if (ret) {
-+ printk(KERN_WARNING
-+ "Can't split linux partition\n");
-+ }
-+ }
-+#endif
-+
- if (!strcmp(parts[i].name, "rootfs")) {
- #ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
- if (ROOT_DEV == 0) {
---- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
-+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
-@@ -166,6 +166,7 @@ extern unsigned char ltq_boot_select(voi
-
- extern __iomem void *ltq_ebu_membase;
- extern __iomem void *ltq_cgu_membase;
-+extern unsigned long ltq_brn_boot;
-
- static inline int ltq_is_ase(void)
- {
---- a/arch/mips/lantiq/setup.c
-+++ b/arch/mips/lantiq/setup.c
-@@ -18,6 +18,9 @@
- #include "devices.h"
- #include "prom.h"
-
-+/* set to 1 if the bootloader is BRN-BOOT instead of u-boot */
-+unsigned long ltq_brn_boot = 0;
-+
- void __init plat_mem_setup(void)
- {
- /* assume 16M as default incase uboot fails to pass proper ramsize */
-@@ -38,6 +41,10 @@ void __init plat_mem_setup(void)
- if (strict_strtoul(e, 0, &memsize))
- pr_warn("bad memsize specified\n");
- }
-+ if (!strncmp(e, "BRN-BOOT", 8)){
-+ pr_info("Found BRN-BOOT instead of u-boot\n");
-+ ltq_brn_boot = 1;
-+ }
- envp++;
- }
- memsize *= 1024 * 1024;