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kernel: move old firmware uimage splitter into separated patch

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This will allow us to drop it in the future. This patch doesn't change
the final mtdpart.c, it remains the same.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43696
This commit is contained in:
Rafał Miłecki 2014-12-13 20:06:47 +00:00
parent 0fa857f3ba
commit 2b4fbeb6d4
14 changed files with 202 additions and 134 deletions
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50
target/linux/generic/patches-3.14/400-mtd-add-rootfs-split-support.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -12,6 +12,28 @@ menuconfig MTD
@@ -12,6 +12,23 @@ menuconfig MTD
if MTD
@ -19,11 +19,6 @@
+ depends on MTD_SPLIT_FIRMWARE
+ default "firmware"
+
+config MTD_UIMAGE_SPLIT
+ bool "Enable split support for firmware partitions containing a uImage"
+ depends on MTD_SPLIT_FIRMWARE
+ default y
+
+endmenu
+
config MTD_TESTS
@ -120,47 +115,10 @@
int mtd_del_partition(struct mtd_info *master, int partno)
{
struct mtd_part *slave, *next;
@@ -614,6 +628,74 @@ int mtd_del_partition(struct mtd_info *m
@@ -614,6 +628,35 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
+static inline unsigned long
+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
+{
+ unsigned long mask = mtd->erasesize - 1;
+
+ len += offset & mask;
+ len = (len + mask) & ~mask;
+ len -= offset & mask;
+ return len;
+}
+
+#define UBOOT_MAGIC 0x27051956
+
+static void split_uimage(struct mtd_info *master, struct mtd_part *part)
+{
+ struct {
+ __be32 magic;
+ __be32 pad[2];
+ __be32 size;
+ } hdr;
+ size_t len;
+
+ if (mtd_read(master, part->offset, sizeof(hdr), &len, (void *) &hdr))
+ return;
+
+ if (len != sizeof(hdr) || hdr.magic != cpu_to_be32(UBOOT_MAGIC))
+ return;
+
+ len = be32_to_cpu(hdr.size) + 0x40;
+ len = mtd_pad_erasesize(master, part->offset, len);
+ if (len + master->erasesize > part->mtd.size)
+ return;
+
+ __mtd_add_partition(master, "rootfs", part->offset + len,
+ part->mtd.size - len, false);
+}
+
+#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#else
@ -169,8 +127,6 @@
+
+static void split_firmware(struct mtd_info *master, struct mtd_part *part)
+{
+ if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
+ split_uimage(master, part);
+}
+
+void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@ -195,7 +151,7 @@
/*
* 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 +725,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -643,6 +686,7 @@ int add_mtd_partitions(struct mtd_info *
mutex_unlock(&mtd_partitions_mutex);
add_mtd_device(&slave->mtd);

4
target/linux/generic/patches-3.14/401-mtd-add-support-for-different-partition-parser-types.patch
View file

@ -11,7 +11,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -755,6 +755,30 @@ static struct mtd_part_parser *get_parti
@@ -716,6 +716,30 @@ static struct mtd_part_parser *get_parti
#define put_partition_parser(p) do { module_put((p)->owner); } while (0)
@ -42,7 +42,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
void register_mtd_parser(struct mtd_part_parser *p)
{
spin_lock(&part_parser_lock);
@@ -828,6 +852,38 @@ int parse_mtd_partitions(struct mtd_info
@@ -789,6 +813,38 @@ int parse_mtd_partitions(struct mtd_info
return ret;
}

21
target/linux/generic/patches-3.14/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
View file

@ -35,23 +35,18 @@
+ return nr_parts;
+}
+
static inline unsigned long
mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
{
@@ -673,6 +704,12 @@ static void split_uimage(struct mtd_info
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -636,6 +667,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
+ int ret;
+
+ ret = run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ if (ret > 0)
+ return;
+
if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
split_uimage(master, part);
+ run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
}
@@ -689,6 +726,12 @@ static void mtd_partition_split(struct m
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@@ -650,6 +682,12 @@ static void mtd_partition_split(struct m
if (rootfs_found)
return;

4
target/linux/generic/patches-3.14/403-mtd-hook-mtdsplit-to-Kbuild.patch
View file

@ -1,8 +1,8 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -32,6 +32,11 @@ config MTD_UIMAGE_SPLIT
@@ -27,6 +27,11 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default y
default "firmware"
+config MTD_SPLIT
+ def_bool n

20
target/linux/generic/patches-3.14/405-mtd-add-more-helper-functions.patch
View file

@ -18,7 +18,25 @@
}
if (slave->offset == MTDPART_OFS_RETAIN) {
slave->offset = cur_offset;
@@ -944,6 +942,24 @@ int mtd_is_partition(const struct mtd_in
@@ -659,6 +657,17 @@ run_parsers_by_type(struct mtd_part *sla
return nr_parts;
}
+static inline unsigned long
+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
+{
+ unsigned long mask = mtd->erasesize - 1;
+
+ len += offset & mask;
+ len = (len + mask) & ~mask;
+ len -= offset & mask;
+ return len;
+}
+
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -900,6 +909,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);

4
target/linux/generic/patches-3.14/406-mtd-hook-mtdsplit-into-Kbuild.patch
View file

@ -1,8 +1,8 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -32,6 +32,8 @@ config MTD_UIMAGE_SPLIT
@@ -27,6 +27,8 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default y
default "firmware"
+source "drivers/mtd/mtdsplit/Kconfig"
+

65
target/linux/generic/patches-3.14/407-mtd-old-firmware-uimage-splitter.patch Normal file
View file

@ -0,0 +1,65 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -27,6 +27,11 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default "firmware"
+config MTD_UIMAGE_SPLIT
+ bool "Enable split support for firmware partitions containing a uImage"
+ depends on MTD_SPLIT_FIRMWARE
+ default y
+
source "drivers/mtd/mtdsplit/Kconfig"
config MTD_SPLIT
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -668,6 +668,32 @@ mtd_pad_erasesize(struct mtd_info *mtd,
return len;
}
+#define UBOOT_MAGIC 0x27051956
+
+static void split_uimage(struct mtd_info *master, struct mtd_part *part)
+{
+ struct {
+ __be32 magic;
+ __be32 pad[2];
+ __be32 size;
+ } hdr;
+ size_t len;
+
+ if (mtd_read(master, part->offset, sizeof(hdr), &len, (void *) &hdr))
+ return;
+
+ if (len != sizeof(hdr) || hdr.magic != cpu_to_be32(UBOOT_MAGIC))
+ return;
+
+ len = be32_to_cpu(hdr.size) + 0x40;
+ len = mtd_pad_erasesize(master, part->offset, len);
+ if (len + master->erasesize > part->mtd.size)
+ return;
+
+ __mtd_add_partition(master, "rootfs", part->offset + len,
+ part->mtd.size - len, false);
+}
+
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -676,7 +702,14 @@ mtd_pad_erasesize(struct mtd_info *mtd,
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
- run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ int ret;
+
+ ret = run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ if (ret > 0)
+ return;
+
+ if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
+ split_uimage(master, part);
}
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,

50
target/linux/generic/patches-3.18/400-mtd-add-rootfs-split-support.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -12,6 +12,28 @@ menuconfig MTD
@@ -12,6 +12,23 @@ menuconfig MTD
if MTD
@ -19,11 +19,6 @@
+ depends on MTD_SPLIT_FIRMWARE
+ default "firmware"
+
+config MTD_UIMAGE_SPLIT
+ bool "Enable split support for firmware partitions containing a uImage"
+ depends on MTD_SPLIT_FIRMWARE
+ default y
+
+endmenu
+
config MTD_TESTS
@ -120,47 +115,10 @@
int mtd_del_partition(struct mtd_info *master, int partno)
{
struct mtd_part *slave, *next;
@@ -627,6 +641,74 @@ int mtd_del_partition(struct mtd_info *m
@@ -627,6 +641,35 @@ int mtd_del_partition(struct mtd_info *m
}
EXPORT_SYMBOL_GPL(mtd_del_partition);
+static inline unsigned long
+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
+{
+ unsigned long mask = mtd->erasesize - 1;
+
+ len += offset & mask;
+ len = (len + mask) & ~mask;
+ len -= offset & mask;
+ return len;
+}
+
+#define UBOOT_MAGIC 0x27051956
+
+static void split_uimage(struct mtd_info *master, struct mtd_part *part)
+{
+ struct {
+ __be32 magic;
+ __be32 pad[2];
+ __be32 size;
+ } hdr;
+ size_t len;
+
+ if (mtd_read(master, part->offset, sizeof(hdr), &len, (void *) &hdr))
+ return;
+
+ if (len != sizeof(hdr) || hdr.magic != cpu_to_be32(UBOOT_MAGIC))
+ return;
+
+ len = be32_to_cpu(hdr.size) + 0x40;
+ len = mtd_pad_erasesize(master, part->offset, len);
+ if (len + master->erasesize > part->mtd.size)
+ return;
+
+ __mtd_add_partition(master, "rootfs", part->offset + len,
+ part->mtd.size - len, false);
+}
+
+#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
+#else
@ -169,8 +127,6 @@
+
+static void split_firmware(struct mtd_info *master, struct mtd_part *part)
+{
+ if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
+ split_uimage(master, part);
+}
+
+void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@ -195,7 +151,7 @@
/*
* 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
@@ -656,6 +738,7 @@ int add_mtd_partitions(struct mtd_info *
@@ -656,6 +699,7 @@ int add_mtd_partitions(struct mtd_info *
mutex_unlock(&mtd_partitions_mutex);
add_mtd_device(&slave->mtd);

4
target/linux/generic/patches-3.18/401-mtd-add-support-for-different-partition-parser-types.patch
View file

@ -11,7 +11,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -768,6 +768,30 @@ static struct mtd_part_parser *get_parti
@@ -729,6 +729,30 @@ static struct mtd_part_parser *get_parti
#define put_partition_parser(p) do { module_put((p)->owner); } while (0)
@ -42,7 +42,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
void register_mtd_parser(struct mtd_part_parser *p)
{
spin_lock(&part_parser_lock);
@@ -841,6 +865,38 @@ int parse_mtd_partitions(struct mtd_info
@@ -802,6 +826,38 @@ int parse_mtd_partitions(struct mtd_info
return ret;
}

21
target/linux/generic/patches-3.18/402-mtd-use-typed-mtd-parsers-for-rootfs-and-firmware-split.patch
View file

@ -35,23 +35,18 @@
+ return nr_parts;
+}
+
static inline unsigned long
mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
{
@@ -686,6 +717,12 @@ static void split_uimage(struct mtd_info
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -649,6 +680,7 @@ EXPORT_SYMBOL_GPL(mtd_del_partition);
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
+ int ret;
+
+ ret = run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ if (ret > 0)
+ return;
+
if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
split_uimage(master, part);
+ run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
}
@@ -702,6 +739,12 @@ static void mtd_partition_split(struct m
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,
@@ -663,6 +695,12 @@ static void mtd_partition_split(struct m
if (rootfs_found)
return;

4
target/linux/generic/patches-3.18/403-mtd-hook-mtdsplit-to-Kbuild.patch
View file

@ -1,8 +1,8 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -32,6 +32,11 @@ config MTD_UIMAGE_SPLIT
@@ -27,6 +27,11 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default y
default "firmware"
+config MTD_SPLIT
+ def_bool n

20
target/linux/generic/patches-3.18/405-mtd-add-more-helper-functions.patch
View file

@ -18,7 +18,25 @@
}
if (slave->offset == MTDPART_OFS_RETAIN) {
slave->offset = cur_offset;
@@ -957,6 +955,24 @@ int mtd_is_partition(const struct mtd_in
@@ -672,6 +670,17 @@ run_parsers_by_type(struct mtd_part *sla
return nr_parts;
}
+static inline unsigned long
+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
+{
+ unsigned long mask = mtd->erasesize - 1;
+
+ len += offset & mask;
+ len = (len + mask) & ~mask;
+ len -= offset & mask;
+ return len;
+}
+
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -913,6 +922,24 @@ int mtd_is_partition(const struct mtd_in
}
EXPORT_SYMBOL_GPL(mtd_is_partition);

4
target/linux/generic/patches-3.18/406-mtd-hook-mtdsplit-into-Kbuild.patch
View file

@ -1,8 +1,8 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -32,6 +32,8 @@ config MTD_UIMAGE_SPLIT
@@ -27,6 +27,8 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default y
default "firmware"
+source "drivers/mtd/mtdsplit/Kconfig"
+

65
target/linux/generic/patches-3.18/407-mtd-old-firmware-uimage-splitter.patch Normal file
View file

@ -0,0 +1,65 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -27,6 +27,11 @@ config MTD_SPLIT_FIRMWARE_NAME
depends on MTD_SPLIT_FIRMWARE
default "firmware"
+config MTD_UIMAGE_SPLIT
+ bool "Enable split support for firmware partitions containing a uImage"
+ depends on MTD_SPLIT_FIRMWARE
+ default y
+
source "drivers/mtd/mtdsplit/Kconfig"
config MTD_SPLIT
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -681,6 +681,32 @@ mtd_pad_erasesize(struct mtd_info *mtd,
return len;
}
+#define UBOOT_MAGIC 0x27051956
+
+static void split_uimage(struct mtd_info *master, struct mtd_part *part)
+{
+ struct {
+ __be32 magic;
+ __be32 pad[2];
+ __be32 size;
+ } hdr;
+ size_t len;
+
+ if (mtd_read(master, part->offset, sizeof(hdr), &len, (void *) &hdr))
+ return;
+
+ if (len != sizeof(hdr) || hdr.magic != cpu_to_be32(UBOOT_MAGIC))
+ return;
+
+ len = be32_to_cpu(hdr.size) + 0x40;
+ len = mtd_pad_erasesize(master, part->offset, len);
+ if (len + master->erasesize > part->mtd.size)
+ return;
+
+ __mtd_add_partition(master, "rootfs", part->offset + len,
+ part->mtd.size - len, false);
+}
+
#ifdef CONFIG_MTD_SPLIT_FIRMWARE_NAME
#define SPLIT_FIRMWARE_NAME CONFIG_MTD_SPLIT_FIRMWARE_NAME
#else
@@ -689,7 +715,14 @@ mtd_pad_erasesize(struct mtd_info *mtd,
static void split_firmware(struct mtd_info *master, struct mtd_part *part)
{
- run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ int ret;
+
+ ret = run_parsers_by_type(part, MTD_PARSER_TYPE_FIRMWARE);
+ if (ret > 0)
+ return;
+
+ if (config_enabled(CONFIG_MTD_UIMAGE_SPLIT))
+ split_uimage(master, part);
}
void __weak arch_split_mtd_part(struct mtd_info *master, const char *name,