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author | Hauke Mehrtens <hauke@hauke-m.de> | 2019-03-25 15:10:39 +0100 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2019-05-03 21:27:12 +0200 |
commit | 2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37 (patch) | |
tree | fa266fc04fd47b42cbc0bd7ae6e6d51c48f64eb2 /target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c | |
parent | 49dca520fb900410a436baa58404539aa1e10381 (diff) | |
download | upstream-2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37.tar.gz upstream-2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37.tar.bz2 upstream-2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37.zip |
adm5120: Remove unmaintained target
This target only supports kernel 3.18, which is not supported in OpenWrt
any more for multiple releases. It also looks like there is no active
maintainer for this target.
Remove the code and all the packages which are only used by this target.
To add this target to OpenWrt again port it to a recent and supported
kernel version.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Diffstat (limited to 'target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c')
-rw-r--r-- | target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c b/target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c deleted file mode 100644 index 76cbdc7494..0000000000 --- a/target/linux/adm5120/files-3.18/drivers/mtd/trxsplit.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * Copyright (C) Gabor Juhos <juhosg@openwrt.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published - * by the Free Software Foundation. - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/list.h> -#include <linux/kmod.h> -#include <linux/root_dev.h> - -#include <linux/mtd/mtd.h> -#include <linux/mtd/partitions.h> - -#include <linux/byteorder/generic.h> - -#define PFX "trxsplit: " - -#define TRX_MAGIC 0x30524448 /* "HDR0" */ -#define TRX_VERSION 1 -#define TRX_MAX_LEN 0x3A0000 -#define TRX_NO_HEADER 0x1 /* do not write TRX header */ -#define TRX_GZ_FILES 0x2 /* contains individual gzip files */ -#define TRX_MAX_OFFSET 3 -#define TRX_MIN_KERNEL_SIZE (256 * 1024) - -struct trx_header { - u32 magic; /* "HDR0" */ - u32 len; /* Length of file including header */ - u32 crc32; /* 32-bit CRC from flag_version to end of file */ - u32 flag_version; /* 0:15 flags, 16:31 version */ - u32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions */ -}; - -#define TRX_ALIGN 0x1000 - -static int trx_nr_parts; -static unsigned long trx_offset; -static struct mtd_info *trx_mtd; -static struct mtd_partition trx_parts[TRX_MAX_OFFSET]; -static struct trx_header trx_hdr; - -static int trxsplit_refresh_partitions(struct mtd_info *mtd); - -static int trxsplit_checktrx(struct mtd_info *mtd, unsigned long offset) -{ - size_t retlen; - int err; - - err = mtd_read(mtd, offset, sizeof(trx_hdr), &retlen, (void *)&trx_hdr); - if (err) { - printk(KERN_ALERT PFX "unable to read from '%s'\n", mtd->name); - goto err_out; - } - - if (retlen != sizeof(trx_hdr)) { - printk(KERN_ALERT PFX "reading failed on '%s'\n", mtd->name); - goto err_out; - } - - trx_hdr.magic = le32_to_cpu(trx_hdr.magic); - trx_hdr.len = le32_to_cpu(trx_hdr.len); - trx_hdr.crc32 = le32_to_cpu(trx_hdr.crc32); - trx_hdr.flag_version = le32_to_cpu(trx_hdr.flag_version); - trx_hdr.offsets[0] = le32_to_cpu(trx_hdr.offsets[0]); - trx_hdr.offsets[1] = le32_to_cpu(trx_hdr.offsets[1]); - trx_hdr.offsets[2] = le32_to_cpu(trx_hdr.offsets[2]); - - /* sanity checks */ - if (trx_hdr.magic != TRX_MAGIC) - goto err_out; - - if (trx_hdr.len > mtd->size - offset) - goto err_out; - - /* TODO: add crc32 checking too? */ - - return 0; - -err_out: - return -1; -} - -static void trxsplit_findtrx(struct mtd_info *mtd) -{ - unsigned long offset; - int err; - - printk(KERN_INFO PFX "searching TRX header in '%s'\n", mtd->name); - - err = 0; - for (offset = 0; offset < mtd->size; offset += TRX_ALIGN) { - err = trxsplit_checktrx(mtd, offset); - if (err == 0) - break; - } - - if (err) - return; - - printk(KERN_INFO PFX "TRX header found at 0x%lX\n", offset); - - trx_mtd = mtd; - trx_offset = offset; -} - -static void trxsplit_create_partitions(struct mtd_info *mtd) -{ - struct mtd_partition *part = trx_parts; - int err; - int i; - - for (i = 0; i < TRX_MAX_OFFSET; i++) { - part = &trx_parts[i]; - if (trx_hdr.offsets[i] == 0) - continue; - part->offset = trx_offset + trx_hdr.offsets[i]; - trx_nr_parts++; - } - - for (i = 0; i < trx_nr_parts-1; i++) - trx_parts[i].size = trx_parts[i+1].offset - trx_parts[i].offset; - - trx_parts[i].size = mtd->size - trx_parts[i].offset; - - i = 0; - part = &trx_parts[i]; - if (part->size < TRX_MIN_KERNEL_SIZE) { - part->name = "loader"; - i++; - } - - part = &trx_parts[i]; - part->name = "kernel"; - i++; - - part = &trx_parts[i]; - part->name = "rootfs"; - - err = mtd_device_register(mtd, trx_parts, trx_nr_parts); - if (err) { - printk(KERN_ALERT PFX "adding TRX partitions failed\n"); - return; - } - - mtd->refresh_device = trxsplit_refresh_partitions; -} - -static int trxsplit_refresh_partitions(struct mtd_info *mtd) -{ - printk(KERN_INFO PFX "refreshing TRX partitions in '%s' (%d,%d)\n", - mtd->name, MTD_BLOCK_MAJOR, mtd->index); - - /* remove old partitions */ - mtd_device_unregister(mtd); - - trxsplit_findtrx(mtd); - if (!trx_mtd) - goto err; - - trxsplit_create_partitions(trx_mtd); - return 1; - -err: - return 0; -} - -static void __init trxsplit_add_mtd(struct mtd_info *mtd) -{ - if (mtd->type != MTD_NORFLASH) { - printk(KERN_INFO PFX "'%s' is not a NOR flash, skipped\n", - mtd->name); - return; - } - - if (!trx_mtd) - trxsplit_findtrx(mtd); -} - -static void __init trxsplit_remove_mtd(struct mtd_info *mtd) -{ - /* nothing to do */ -} - -static struct mtd_notifier trxsplit_notifier __initdata = { - .add = trxsplit_add_mtd, - .remove = trxsplit_remove_mtd, -}; - -static void __init trxsplit_scan(void) -{ - register_mtd_user(&trxsplit_notifier); - unregister_mtd_user(&trxsplit_notifier); -} - -static int __init trxsplit_init(void) -{ - trxsplit_scan(); - - if (trx_mtd) { - printk(KERN_INFO PFX "creating TRX partitions in '%s' " - "(%d,%d)\n", trx_mtd->name, MTD_BLOCK_MAJOR, - trx_mtd->index); - trxsplit_create_partitions(trx_mtd); - } - - return 0; -} - -late_initcall(trxsplit_init); |