ath79: remove unused TP-Link partition parser
This parser was added with the target, but no device seems to use it currently, as all partitions are specified in the device-tree. Signed-off-by: David Bauer <mail@david-bauer.net>master
David Bauer
4 years ago
parent
3fdb08681b
commit
3f5997fb28
@ -1,250 +0,0 @@
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--- a/drivers/mtd/Kconfig
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+++ b/drivers/mtd/Kconfig
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@@ -193,6 +193,12 @@ config MTD_MYLOADER_PARTS
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You will still need the parsing functions to be called by the driver
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for your particular device. It won't happen automatically.
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+config MTD_TPLINK_PARTS
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+ tristate "TP-Link AR7XXX/AR9XXX partitioning support"
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+ depends on ATH79
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+ ---help---
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+ TBD.
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+
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comment "User Modules And Translation Layers"
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#
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--- a/drivers/mtd/Makefile
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+++ b/drivers/mtd/Makefile
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@@ -18,6 +18,7 @@ obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63
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obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o
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obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
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obj-y += parsers/
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+obj-$(CONFIG_MTD_TPLINK_PARTS) += tplinkpart.o
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# 'Users' - code which presents functionality to userspace.
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obj-$(CONFIG_MTD_BLKDEVS) += mtd_blkdevs.o
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--- /dev/null
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+++ b/drivers/mtd/tplinkpart.c
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@@ -0,0 +1,222 @@
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+/*
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+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/slab.h>
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+#include <linux/vmalloc.h>
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+#include <linux/magic.h>
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+
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/version.h>
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+
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+#define TPLINK_NUM_PARTS 5
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+#define TPLINK_HEADER_V1 0x01000000
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+#define TPLINK_HEADER_V2 0x02000000
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+#define MD5SUM_LEN 16
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+
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+#define TPLINK_ART_LEN 0x10000
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+#define TPLINK_KERNEL_OFFS 0x20000
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+#define TPLINK_64K_KERNEL_OFFS 0x10000
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+
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+struct tplink_fw_header {
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+ uint32_t version; /* header version */
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+ char vendor_name[24];
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+ char fw_version[36];
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+ uint32_t hw_id; /* hardware id */
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+ uint32_t hw_rev; /* hardware revision */
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+ uint32_t unk1;
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+ uint8_t md5sum1[MD5SUM_LEN];
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+ uint32_t unk2;
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+ uint8_t md5sum2[MD5SUM_LEN];
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+ uint32_t unk3;
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+ uint32_t kernel_la; /* kernel load address */
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+ uint32_t kernel_ep; /* kernel entry point */
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+ uint32_t fw_length; /* total length of the firmware */
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+ uint32_t kernel_ofs; /* kernel data offset */
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+ uint32_t kernel_len; /* kernel data length */
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+ uint32_t rootfs_ofs; /* rootfs data offset */
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+ uint32_t rootfs_len; /* rootfs data length */
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+ uint32_t boot_ofs; /* bootloader data offset */
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+ uint32_t boot_len; /* bootloader data length */
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+ uint8_t pad[360];
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+} __attribute__ ((packed));
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+
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+static struct tplink_fw_header *
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+tplink_read_header(struct mtd_info *mtd, size_t offset)
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+{
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+ struct tplink_fw_header *header;
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+ size_t header_len;
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+ size_t retlen;
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+ int ret;
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+ u32 t;
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+
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+ header = vmalloc(sizeof(*header));
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+ if (!header)
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+ goto err;
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+
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+ header_len = sizeof(struct tplink_fw_header);
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+ ret = mtd_read(mtd, offset, header_len, &retlen,
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+ (unsigned char *) header);
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+ if (ret)
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+ goto err_free_header;
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+
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+ if (retlen != header_len)
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+ goto err_free_header;
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+
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+ /* sanity checks */
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+ t = be32_to_cpu(header->version);
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+ if ((t != TPLINK_HEADER_V1) && (t != TPLINK_HEADER_V2))
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+ goto err_free_header;
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+
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+ t = be32_to_cpu(header->kernel_ofs);
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+ if (t != header_len)
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+ goto err_free_header;
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+
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+ return header;
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+
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+err_free_header:
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+ vfree(header);
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+err:
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+ return NULL;
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+}
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+
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+static int tplink_check_rootfs_magic(struct mtd_info *mtd, size_t offset)
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+{
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+ u32 magic;
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+ size_t retlen;
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+ int ret;
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+
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+ ret = mtd_read(mtd, offset, sizeof(magic), &retlen,
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+ (unsigned char *) &magic);
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+ if (ret)
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+ return ret;
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+
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+ if (retlen != sizeof(magic))
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+ return -EIO;
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+
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+ if (le32_to_cpu(magic) != SQUASHFS_MAGIC &&
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+ magic != 0x19852003)
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+static int tplink_parse_partitions_offset(struct mtd_info *master,
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+ const struct mtd_partition **pparts,
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+ struct mtd_part_parser_data *data,
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+ size_t offset)
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+{
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+ struct mtd_partition *parts;
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+ struct tplink_fw_header *header;
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+ int nr_parts;
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+ size_t art_offset;
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+ size_t rootfs_offset;
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+ size_t squashfs_offset;
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+ int ret;
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+
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+ nr_parts = TPLINK_NUM_PARTS;
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+ parts = kzalloc(nr_parts * sizeof(struct mtd_partition), GFP_KERNEL);
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+ if (!parts) {
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+ ret = -ENOMEM;
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+ goto err;
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+ }
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+
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+ header = tplink_read_header(master, offset);
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+ if (!header) {
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+ pr_notice("%s: no TP-Link header found\n", master->name);
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+ ret = -ENODEV;
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+ goto err_free_parts;
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+ }
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+
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+ squashfs_offset = offset + sizeof(struct tplink_fw_header) +
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+ be32_to_cpu(header->kernel_len);
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+
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+ ret = tplink_check_rootfs_magic(master, squashfs_offset);
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+ if (ret == 0)
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+ rootfs_offset = squashfs_offset;
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+ else
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+ rootfs_offset = offset + be32_to_cpu(header->rootfs_ofs);
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+
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+ art_offset = master->size - TPLINK_ART_LEN;
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+
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+ parts[0].name = "u-boot";
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+ parts[0].offset = 0;
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+ parts[0].size = offset;
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+ parts[0].mask_flags = MTD_WRITEABLE;
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+
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+ parts[1].name = "kernel";
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+ parts[1].offset = offset;
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+ parts[1].size = rootfs_offset - offset;
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+
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+ parts[2].name = "rootfs";
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+ parts[2].offset = rootfs_offset;
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+ parts[2].size = art_offset - rootfs_offset;
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+
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+ parts[3].name = "art";
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+ parts[3].offset = art_offset;
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+ parts[3].size = TPLINK_ART_LEN;
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+ parts[3].mask_flags = MTD_WRITEABLE;
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+
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+ parts[4].name = "firmware";
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+ parts[4].offset = offset;
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+ parts[4].size = art_offset - offset;
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+
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+ vfree(header);
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+
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+ *pparts = parts;
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+ return nr_parts;
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+
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+err_free_parts:
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+ kfree(parts);
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+err:
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+ *pparts = NULL;
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+ return ret;
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+}
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+
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+static int tplink_parse_partitions(struct mtd_info *master,
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+ const struct mtd_partition **pparts,
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+ struct mtd_part_parser_data *data)
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+{
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+ return tplink_parse_partitions_offset(master, pparts, data,
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+ TPLINK_KERNEL_OFFS);
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+}
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+
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+static int tplink_parse_64k_partitions(struct mtd_info *master,
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+ const struct mtd_partition **pparts,
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+ struct mtd_part_parser_data *data)
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+{
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+ return tplink_parse_partitions_offset(master, pparts, data,
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+ TPLINK_64K_KERNEL_OFFS);
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+}
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+
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+static struct mtd_part_parser tplink_parser = {
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+ .owner = THIS_MODULE,
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+ .parse_fn = tplink_parse_partitions,
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+ .name = "tp-link",
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+};
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+
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+static struct mtd_part_parser tplink_64k_parser = {
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+ .owner = THIS_MODULE,
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+ .parse_fn = tplink_parse_64k_partitions,
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+ .name = "tp-link-64k",
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+};
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+
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+static int __init tplink_parser_init(void)
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+{
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+ register_mtd_parser(&tplink_parser);
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+ register_mtd_parser(&tplink_64k_parser);
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+
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+ return 0;
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+}
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+
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+module_init(tplink_parser_init);
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+
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+MODULE_LICENSE("GPL v2");
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+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
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@ -1,244 +0,0 @@
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--- a/drivers/mtd/parsers/Kconfig
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+++ b/drivers/mtd/parsers/Kconfig
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@@ -184,3 +184,9 @@ config MTD_MYLOADER_PARTS
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You will still need the parsing functions to be called by the driver
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for your particular device. It won't happen automatically.
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+
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+config MTD_TPLINK_PARTS
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+ tristate "TP-Link AR7XXX/AR9XXX partitioning support"
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+ depends on ATH79
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+ ---help---
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+ TBD.
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--- a/drivers/mtd/parsers/Makefile
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+++ b/drivers/mtd/parsers/Makefile
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@@ -11,3 +11,4 @@ obj-$(CONFIG_MTD_PARSER_TRX) += parser_
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obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
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obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
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obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
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+obj-$(CONFIG_MTD_TPLINK_PARTS) += tplinkpart.o
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--- /dev/null
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+++ b/drivers/mtd/parsers/tplinkpart.c
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@@ -0,0 +1,222 @@
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+/*
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+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License version 2 as published
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+ * by the Free Software Foundation.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/slab.h>
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+#include <linux/vmalloc.h>
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+#include <linux/magic.h>
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+
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+#include <linux/mtd/mtd.h>
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+#include <linux/mtd/partitions.h>
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+#include <linux/version.h>
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+
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+#define TPLINK_NUM_PARTS 5
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+#define TPLINK_HEADER_V1 0x01000000
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+#define TPLINK_HEADER_V2 0x02000000
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+#define MD5SUM_LEN 16
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+
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+#define TPLINK_ART_LEN 0x10000
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+#define TPLINK_KERNEL_OFFS 0x20000
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+#define TPLINK_64K_KERNEL_OFFS 0x10000
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+
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+struct tplink_fw_header {
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+ uint32_t version; /* header version */
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+ char vendor_name[24];
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+ char fw_version[36];
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+ uint32_t hw_id; /* hardware id */
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+ uint32_t hw_rev; /* hardware revision */
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+ uint32_t unk1;
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+ uint8_t md5sum1[MD5SUM_LEN];
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+ uint32_t unk2;
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+ uint8_t md5sum2[MD5SUM_LEN];
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+ uint32_t unk3;
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+ uint32_t kernel_la; /* kernel load address */
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+ uint32_t kernel_ep; /* kernel entry point */
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+ uint32_t fw_length; /* total length of the firmware */
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+ uint32_t kernel_ofs; /* kernel data offset */
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+ uint32_t kernel_len; /* kernel data length */
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+ uint32_t rootfs_ofs; /* rootfs data offset */
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+ uint32_t rootfs_len; /* rootfs data length */
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+ uint32_t boot_ofs; /* bootloader data offset */
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+ uint32_t boot_len; /* bootloader data length */
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+ uint8_t pad[360];
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+} __attribute__ ((packed));
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+
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+static struct tplink_fw_header *
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+tplink_read_header(struct mtd_info *mtd, size_t offset)
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+{
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+ struct tplink_fw_header *header;
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+ size_t header_len;
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+ size_t retlen;
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+ int ret;
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+ u32 t;
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+
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+ header = vmalloc(sizeof(*header));
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+ if (!header)
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+ goto err;
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+
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+ header_len = sizeof(struct tplink_fw_header);
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+ ret = mtd_read(mtd, offset, header_len, &retlen,
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+ (unsigned char *) header);
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+ if (ret)
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+ goto err_free_header;
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+
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+ if (retlen != header_len)
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+ goto err_free_header;
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+
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+ /* sanity checks */
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+ t = be32_to_cpu(header->version);
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+ if ((t != TPLINK_HEADER_V1) && (t != TPLINK_HEADER_V2))
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+ goto err_free_header;
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+
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+ t = be32_to_cpu(header->kernel_ofs);
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+ if (t != header_len)
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+ goto err_free_header;
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+
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+ return header;
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+
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+err_free_header:
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+ vfree(header);
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+err:
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+ return NULL;
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+}
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+
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+static int tplink_check_rootfs_magic(struct mtd_info *mtd, size_t offset)
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+{
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+ u32 magic;
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+ size_t retlen;
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+ int ret;
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+
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+ ret = mtd_read(mtd, offset, sizeof(magic), &retlen,
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+ (unsigned char *) &magic);
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+ if (ret)
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+ return ret;
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+
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+ if (retlen != sizeof(magic))
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+ return -EIO;
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+
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+ if (le32_to_cpu(magic) != SQUASHFS_MAGIC &&
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+ magic != 0x19852003)
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+ return -EINVAL;
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+
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+ return 0;
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+}
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+
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+static int tplink_parse_partitions_offset(struct mtd_info *master,
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+ const struct mtd_partition **pparts,
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+ struct mtd_part_parser_data *data,
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+ size_t offset)
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+{
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+ struct mtd_partition *parts;
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+ struct tplink_fw_header *header;
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+ int nr_parts;
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+ size_t art_offset;
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+ size_t rootfs_offset;
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+ size_t squashfs_offset;
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+ int ret;
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+
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+ nr_parts = TPLINK_NUM_PARTS;
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+ parts = kzalloc(nr_parts * sizeof(struct mtd_partition), GFP_KERNEL);
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+ if (!parts) {
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+ ret = -ENOMEM;
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+ goto err;
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+ }
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+
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+ header = tplink_read_header(master, offset);
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+ if (!header) {
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+ pr_notice("%s: no TP-Link header found\n", master->name);
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+ ret = -ENODEV;
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+ goto err_free_parts;
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+ }
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+
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+ squashfs_offset = offset + sizeof(struct tplink_fw_header) +
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+ be32_to_cpu(header->kernel_len);
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+
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+ ret = tplink_check_rootfs_magic(master, squashfs_offset);
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+ if (ret == 0)
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+ rootfs_offset = squashfs_offset;
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+ else
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+ rootfs_offset = offset + be32_to_cpu(header->rootfs_ofs);
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+
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+ art_offset = master->size - TPLINK_ART_LEN;
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+
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+ parts[0].name = "u-boot";
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+ parts[0].offset = 0;
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+ parts[0].size = offset;
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+ parts[0].mask_flags = MTD_WRITEABLE;
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+
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+ parts[1].name = "kernel";
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+ parts[1].offset = offset;
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+ parts[1].size = rootfs_offset - offset;
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+
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+ parts[2].name = "rootfs";
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+ parts[2].offset = rootfs_offset;
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+ parts[2].size = art_offset - rootfs_offset;
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+
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+ parts[3].name = "art";
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+ parts[3].offset = art_offset;
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+ parts[3].size = TPLINK_ART_LEN;
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+ parts[3].mask_flags = MTD_WRITEABLE;
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+
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+ parts[4].name = "firmware";
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+ parts[4].offset = offset;
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+ parts[4].size = art_offset - offset;
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+
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+ vfree(header);
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||||
+
|
||||
+ *pparts = parts;
|
||||
+ return nr_parts;
|
||||
+
|
||||
+err_free_parts:
|
||||
+ kfree(parts);
|
||||
+err:
|
||||
+ *pparts = NULL;
|
||||
+ return ret;
|
||||
+}
|
||||
+
|
||||
+static int tplink_parse_partitions(struct mtd_info *master,
|
||||
+ const struct mtd_partition **pparts,
|
||||
+ struct mtd_part_parser_data *data)
|
||||
+{
|
||||
+ return tplink_parse_partitions_offset(master, pparts, data,
|
||||
+ TPLINK_KERNEL_OFFS);
|
||||
+}
|
||||
+
|
||||
+static int tplink_parse_64k_partitions(struct mtd_info *master,
|
||||
+ const struct mtd_partition **pparts,
|
||||
+ struct mtd_part_parser_data *data)
|
||||
+{
|
||||
+ return tplink_parse_partitions_offset(master, pparts, data,
|
||||
+ TPLINK_64K_KERNEL_OFFS);
|
||||
+}
|
||||
+
|
||||
+static struct mtd_part_parser tplink_parser = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .parse_fn = tplink_parse_partitions,
|
||||
+ .name = "tp-link",
|
||||
+};
|
||||
+
|
||||
+static struct mtd_part_parser tplink_64k_parser = {
|
||||
+ .owner = THIS_MODULE,
|
||||
+ .parse_fn = tplink_parse_64k_partitions,
|
||||
+ .name = "tp-link-64k",
|
||||
+};
|
||||
+
|
||||
+static int __init tplink_parser_init(void)
|
||||
+{
|
||||
+ register_mtd_parser(&tplink_parser);
|
||||
+ register_mtd_parser(&tplink_64k_parser);
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+module_init(tplink_parser_init);
|
||||
+
|
||||
+MODULE_LICENSE("GPL v2");
|
||||
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
|
||||
Loading…
Reference in New Issue