lantiq: Switch to the generic mtdsplit parser implementations

This removes the arch-specific mtdsplit parsers and enables the generic
implementations for brnImage, EVA and TP-Link instead.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48264 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 3 insertions, 192 deletions

diff --git a/target/linux/lantiq/config-4.1 b/target/linux/lantiq/config-4.1
index a68ad16e9a..35a1233135 100644
--- a/target/linux/lantiq/config-4.1
+++ b/target/linux/lantiq/config-4.1
@@ -104,7 +104,10 @@ CONFIG_MTD_LANTIQ=y
 CONFIG_MTD_M25P80=y
 # CONFIG_MTD_NAND_XWAY is not set
 CONFIG_MTD_SPI_NOR=y
+CONFIG_MTD_SPLIT_BRNIMAGE_FW=y
+CONFIG_MTD_SPLIT_EVA_FW=y
 CONFIG_MTD_SPLIT_FIRMWARE=y
+CONFIG_MTD_SPLIT_TPLINK_FW=y
 CONFIG_MTD_UIMAGE_SPLIT=y
 CONFIG_NEED_DMA_MAP_STATE=y
 CONFIG_NEED_PER_CPU_KM=y
diff --git a/target/linux/lantiq/patches-4.1/0101-mtd-split.patch b/target/linux/lantiq/patches-4.1/0101-mtd-split.patch
deleted file mode 100644
index e3c363307a..0000000000
--- a/target/linux/lantiq/patches-4.1/0101-mtd-split.patch
+++ /dev/null
@@ -1,192 +0,0 @@
---- a/arch/mips/lantiq/xway/Makefile
-+++ b/arch/mips/lantiq/xway/Makefile
-@@ -1,6 +1,6 @@
- obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
- 
--obj-y += vmmc.o tffs.o
-+obj-y += vmmc.o tffs.o mtd_split.o
- 
- obj-y += eth_mac.o
- obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
---- /dev/null
-+++ b/arch/mips/lantiq/xway/mtd_split.c
-@@ -0,0 +1,129 @@
-+#include <linux/magic.h>
-+#include <linux/root_dev.h>
-+#include <linux/mtd/mtd.h>
-+#include <linux/mtd/partitions.h>
-+
-+#define ROOTFS_SPLIT_NAME "rootfs_data"
-+
-+struct squashfs_super_block {
-+	__le32 s_magic;
-+	__le32 pad0[9];
-+	__le64 bytes_used;
-+};
-+
-+static void split_brnimage_kernel(struct mtd_info *master, const char *name,
-+                                       int offset, int size)
-+{
-+	unsigned long buf[4];
-+	// Assume at most 2MB of kernel image
-+	unsigned long end = offset + (2 << 20);
-+	unsigned long part_size = offset + 0x400 - 12;
-+	size_t len;
-+	int ret;
-+
-+	if (strcmp(name, "firmware") != 0)
-+		return;
-+	while (part_size < end) {
-+		long size_min = part_size - 0x400 - 12 - offset;
-+		long size_max = part_size + 12 - offset;
-+		ret = mtd_read(master, part_size, 16, &len, (void *)buf);
-+		if (ret || len != 16)
-+			return;
-+
-+		if (le32_to_cpu(buf[0]) < size_min ||
-+				le32_to_cpu(buf[0]) > size_max) {
-+			part_size += 0x400;
-+			continue;
-+		}
-+
-+		if (le32_to_cpu(buf[3]) == SQUASHFS_MAGIC) {
-+			part_size += 12 - offset;
-+			__mtd_add_partition(master, "rootfs", offset + part_size,
-+			                            size - part_size, false);
-+			return;
-+		}
-+		part_size += 0x400;
-+	}
-+}
-+
-+static void split_eva_kernel(struct mtd_info *master, const char *name,
-+				int offset, int size)
-+{
-+#define EVA_MAGIC   0xfeed1281
-+	unsigned long magic = 0;
-+	unsigned long part_size = 0, p;
-+	size_t len;
-+	int ret;
-+
-+	if (strcmp(name, CONFIG_MTD_SPLIT_FIRMWARE_NAME) != 0)
-+		return;
-+
-+	ret = mtd_read(master, offset, 4, &len, (void *)&magic);
-+	if (ret || len != sizeof(magic))
-+		return;
-+
-+	if (le32_to_cpu(magic) != EVA_MAGIC)
-+		return;
-+
-+	ret = mtd_read(master, offset + 4, 4, &len, (void *)&part_size);
-+	if (ret || len != sizeof(part_size))
-+		return;
-+
-+	p = part_size = le32_to_cpu(part_size) + 0x18;
-+	p &= ~0xffff;
-+	p += 0x10000;
-+
-+	ret = mtd_read(master, offset + p, 4, &len, (void *)&magic);
-+	if (ret || len != sizeof(magic))
-+		return;
-+
-+	if (magic == SQUASHFS_MAGIC)
-+		part_size = p + 0x100;
-+	else
-+	        part_size = mtd_pad_erasesize(master, offset, len);
-+
-+	if (part_size + master->erasesize > size)
-+		return;
-+
-+	__mtd_add_partition(master, "rootfs", offset + part_size,
-+			    size - part_size, false);
-+}
-+
-+static void split_tplink_kernel(struct mtd_info *master, const char *name,
-+				int offset, int size)
-+{
-+#define TPLINK_MAGIC   0x00000002
-+	unsigned long magic = 0;
-+	unsigned long part_size = 0;
-+	size_t len;
-+	int ret;
-+
-+	if (strcmp(name, CONFIG_MTD_SPLIT_FIRMWARE_NAME) != 0)
-+		return;
-+
-+	ret = mtd_read(master, offset, 4, &len, (void *)&magic);
-+	if (ret || len != sizeof(magic))
-+		return;
-+
-+	if (le32_to_cpu(magic) != TPLINK_MAGIC)
-+		return;
-+
-+	ret = mtd_read(master, offset + 0x78, 4, &len, (void *)&part_size);
-+	if (ret || len != sizeof(part_size))
-+		return;
-+
-+	part_size = be32_to_cpu(part_size) + 0x200;
-+	if (part_size + master->erasesize > size)
-+		return;
-+
-+	__mtd_add_partition(master, "rootfs", offset + part_size,
-+			    size - part_size, false);
-+}
-+
-+void arch_split_mtd_part(struct mtd_info *master, const char *name,
-+				int offset, int size)
-+{
-+	split_tplink_kernel(master, name, offset, size);
-+	split_eva_kernel(master, name, offset, size);
-+	split_brnimage_kernel(master, name, offset, size);
-+}
---- a/include/linux/mtd/partitions.h
-+++ b/include/linux/mtd/partitions.h
-@@ -89,12 +89,17 @@ extern void deregister_mtd_parser(struct
- int mtd_is_partition(const struct mtd_info *mtd);
- int mtd_add_partition(struct mtd_info *master, const char *name,
- 		      long long offset, long long length);
-+int __mtd_add_partition(struct mtd_info *master, const char *name,
-+		    long long offset, long long length, bool dup_check);
-+
- 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);
-+void __weak arch_split_mtd_part(struct mtd_info *master,
-+ 				       const char *name, int offset, int size);
-+unsigned long
-+mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len);
- 
- int parse_mtd_partitions_by_type(struct mtd_info *master,
- 				 enum mtd_parser_type type,
---- a/drivers/mtd/mtdpart.c
-+++ b/drivers/mtd/mtdpart.c
-@@ -659,7 +659,7 @@ static int mtd_add_partition_attrs(struc
- }
- 
- 
--static int
-+int
- __mtd_add_partition(struct mtd_info *master, const char *name,
- 		    long long offset, long long length, bool dup_check)
- {
-@@ -763,7 +763,7 @@ run_parsers_by_type(struct mtd_part *sla
- 	return nr_parts;
- }
- 
--static inline unsigned long
-+unsigned long
- mtd_pad_erasesize(struct mtd_info *mtd, int offset, int len)
- {
- 	unsigned long mask = mtd->erasesize - 1;
-@@ -792,7 +792,6 @@ static void split_uimage(struct mtd_info
- 		return;
- 
- 	len = be32_to_cpu(hdr.size) + 0x40;
--	len = mtd_pad_erasesize(master, part->offset, len);
- 	if (len + master->erasesize > part->mtd.size)
- 		return;
-