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author | Hauke Mehrtens <hauke@hauke-m.de> | 2019-03-25 15:17:43 +0100 |
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committer | Hauke Mehrtens <hauke@hauke-m.de> | 2019-05-03 21:27:12 +0200 |
commit | c35425f4182e90601fa2c2f38b21a54eb49793ad (patch) | |
tree | 0b27ba38f5a04ff07e6dedf1b848c953f148e0fd /target/linux/adm8668/files-3.18/drivers/mtd | |
parent | 2d0a2ff1e0c386bcb3b1ae0a0924624e8cb20b37 (diff) | |
download | upstream-c35425f4182e90601fa2c2f38b21a54eb49793ad.tar.gz upstream-c35425f4182e90601fa2c2f38b21a54eb49793ad.tar.bz2 upstream-c35425f4182e90601fa2c2f38b21a54eb49793ad.zip |
adm8668: 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/adm8668/files-3.18/drivers/mtd')
-rw-r--r-- | target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c b/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c deleted file mode 100644 index 7e51d5828d..0000000000 --- a/target/linux/adm8668/files-3.18/drivers/mtd/maps/adm8668.c +++ /dev/null @@ -1,334 +0,0 @@ -/* - * Copyright (C) 2010 Scott Nicholas <neutronscott@scottn.us> - * Copyright (C) 2006 Felix Fietkau <nbd@nbd.name> - * Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org> - * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) - * - * original functions for finding root filesystem from Mike Baker - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - * Copyright 2004, Broadcom Corporation - * All Rights Reserved. - * - * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY - * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM - * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS - * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. - * - * Flash mapping for adm8668 boards - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/wait.h> -#include <linux/mtd/mtd.h> -#include <linux/mtd/map.h> -#include <linux/slab.h> -#include <linux/mtd/partitions.h> -#include <linux/crc32.h> -#include <linux/magic.h> -#include <asm/io.h> - -#define WINDOW_ADDR 0x10000000 -#define WINDOW_SIZE 0x800000 -#define BANKWIDTH 2 - -/* first a little bit about the headers i need.. */ - -/* just interested in part of the full struct */ -struct squashfs_super_block { - __le32 s_magic; - __le32 pad0[9]; /* it's not really padding */ - __le64 bytes_used; -}; - -#define IH_MAGIC 0x56190527 /* Image Magic Number */ -struct uboot_header { - uint32_t ih_magic; /* Image Header Magic Number */ - uint32_t ih_hcrc; /* Image Header CRC Checksum */ - uint32_t ih_time; /* Image Creation Timestamp */ - uint32_t ih_size; /* Image Data Size */ - uint32_t ih_load; /* Data Load Address */ - uint32_t ih_ep; /* Entry Point Address */ - uint32_t ih_dcrc; /* Image Data CRC Checksum */ - uint8_t ih_os; /* Operating System */ - uint8_t ih_arch; /* CPU architecture */ - uint8_t ih_type; /* Image Type */ - uint8_t ih_comp; /* Compression Type */ - char ih_name[32]; /* image name */ -}; - -/************************************************/ - -static struct mtd_info *adm8668_mtd; - -struct map_info adm8668_map = { - name: "adm8668-nor", - size: WINDOW_SIZE, - phys: WINDOW_ADDR, - bankwidth: BANKWIDTH, -}; - -/* - * Copied from mtdblock.c - * - * Cache stuff... - * - * Since typical flash erasable sectors are much larger than what Linux's - * buffer cache can handle, we must implement read-modify-write on flash - * sectors for each block write requests. To avoid over-erasing flash sectors - * and to speed things up, we locally cache a whole flash sector while it is - * being written to until a different sector is required. - */ - -static void erase_callback(struct erase_info *done) -{ - wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv; - wake_up(wait_q); -} - -static int erase_write (struct mtd_info *mtd, unsigned long pos, - int len, const char *buf) -{ - struct erase_info erase; - DECLARE_WAITQUEUE(wait, current); - wait_queue_head_t wait_q; - size_t retlen; - int ret; - - /* - * First, let's erase the flash block. - */ - - init_waitqueue_head(&wait_q); - erase.mtd = mtd; - erase.callback = erase_callback; - erase.addr = pos; - erase.len = len; - erase.priv = (u_long)&wait_q; - - set_current_state(TASK_INTERRUPTIBLE); - add_wait_queue(&wait_q, &wait); - - ret = mtd->_erase(mtd, &erase); - if (ret) { - set_current_state(TASK_RUNNING); - remove_wait_queue(&wait_q, &wait); - printk (KERN_WARNING "erase of region [0x%lx, 0x%x] " - "on \"%s\" failed\n", - pos, len, mtd->name); - return ret; - } - - schedule(); /* Wait for erase to finish. */ - remove_wait_queue(&wait_q, &wait); - - /* - * Next, write data to flash. - */ - - ret = mtd->_write (mtd, pos, len, &retlen, buf); - if (ret) - return ret; - if (retlen != len) - return -EIO; - return 0; -} - -/* decent defaults in case... shrug */ -static struct mtd_partition adm8668_parts[] = { - { name: "linux", offset: 0x40000, size: WINDOW_SIZE-0x40000, }, - { name: "rootfs", offset: 0xe0000, size: 0x140000, }, - { name: "uboot_env", offset: 0x20000, size: 0x20000, }, - { name: NULL, }, -}; - -/* in case i wanna change stuff later, and to clarify the math section... */ -#define PART_LINUX 0 -#define PART_ROOTFS 1 -#define NR_PARTS 3 - -static int __init -init_mtd_partitions(struct mtd_info *mtd, size_t size) -{ - struct uboot_header uhdr; - int off, blocksize; - size_t len, linux_len; - struct squashfs_super_block shdr; - - blocksize = mtd->erasesize; - if (blocksize < 0x10000) - blocksize = 0x10000; - - /* now find squashfs */ - memset(&shdr, 0xe5, sizeof(shdr)); - for (off = adm8668_parts[PART_LINUX].offset; off < size; off += blocksize) { - /* - * Read into buffer - */ - if (mtd->_read(mtd, off, sizeof(shdr), &len, (char *)&shdr) || - len != sizeof(shdr)) - continue; - - if (shdr.s_magic == SQUASHFS_MAGIC) { - uint32_t fs_size = (uint32_t)shdr.bytes_used; - - printk(KERN_INFO "%s: Filesystem type: squashfs, size=%dkB\n", - mtd->name, fs_size>>10); - - /* Update rootfs based on the superblock info, and - * stretch to end of MTD. rootfs_split will split it */ - adm8668_parts[PART_ROOTFS].offset = off; - adm8668_parts[PART_ROOTFS].size = mtd->size - - adm8668_parts[PART_ROOTFS].offset; - - /* kernel ends where rootfs starts - * but we'll keep it full-length for upgrades */ - linux_len = adm8668_parts[PART_LINUX+1].offset - - adm8668_parts[PART_LINUX].offset; -#if 1 - adm8668_parts[PART_LINUX].size = mtd->size - - adm8668_parts[PART_LINUX].offset; -#else - adm8668_parts[PART_LINUX].size = linux_len; -#endif - goto found; - } - } - - printk(KERN_NOTICE - "%s: Couldn't find root filesystem\n", - mtd->name); - return NR_PARTS; - - found: - if (mtd->_read(mtd, adm8668_parts[PART_LINUX].offset, sizeof(uhdr), &len, (char *)&uhdr) || - len != sizeof(uhdr)) - return NR_PARTS; - - /* that's odd. how'd ya boot it then */ - if (uhdr.ih_magic != IH_MAGIC) - return NR_PARTS; - - if (be32_to_cpu(uhdr.ih_size) != (linux_len - sizeof(uhdr))) { - unsigned char *block, *data; - unsigned int offset; - - offset = adm8668_parts[PART_LINUX].offset + - sizeof(struct uboot_header); - data = (unsigned char *)(WINDOW_ADDR | 0xA0000000 | offset); - - printk(KERN_NOTICE "Updating U-boot image:\n"); - printk(KERN_NOTICE " old: [size: %8d crc32: 0x%08x]\n", - be32_to_cpu(uhdr.ih_size), be32_to_cpu(uhdr.ih_dcrc)); - - /* Update the data length & crc32 */ - uhdr.ih_size = cpu_to_be32(linux_len - sizeof(uhdr)); - uhdr.ih_dcrc = crc32_le(~0, data, linux_len - sizeof(uhdr)) ^ (~0); - uhdr.ih_dcrc = cpu_to_be32(uhdr.ih_dcrc); - - printk(KERN_NOTICE " new: [size: %8d crc32: 0x%08x]\n", - be32_to_cpu(uhdr.ih_size), be32_to_cpu(uhdr.ih_dcrc)); - - /* update header's crc... */ - uhdr.ih_hcrc = 0; - uhdr.ih_hcrc = crc32_le(~0, (unsigned char *)&uhdr, - sizeof(uhdr)) ^ (~0); - uhdr.ih_hcrc = cpu_to_be32(uhdr.ih_hcrc); - - /* read first eraseblock from the image */ - block = kmalloc(mtd->erasesize, GFP_KERNEL); - if (mtd->_read(mtd, adm8668_parts[PART_LINUX].offset, mtd->erasesize, &len, block) || len != mtd->erasesize) { - printk("Error copying first eraseblock\n"); - return 0; - } - - /* Write updated header to the flash */ - memcpy(block, &uhdr, sizeof(uhdr)); - if (mtd->_unlock) - mtd->_unlock(mtd, off, mtd->erasesize); - erase_write(mtd, adm8668_parts[PART_LINUX].offset, mtd->erasesize, block); - if (mtd->_sync) - mtd->_sync(mtd); - kfree(block); - printk(KERN_NOTICE "Done\n"); - } - - return NR_PARTS; -} - -int __init init_adm8668_map(void) -{ - int nr_parts, ret; - - adm8668_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE); - - if (!adm8668_map.virt) { - printk(KERN_ERR "Failed to ioremap\n"); - return -EIO; - } - - simple_map_init(&adm8668_map); - if (!(adm8668_mtd = do_map_probe("cfi_probe", &adm8668_map))) { - printk(KERN_ERR "cfi_probe failed\n"); - iounmap((void *)adm8668_map.virt); - return -ENXIO; - } - - adm8668_mtd->owner = THIS_MODULE; - - nr_parts = init_mtd_partitions(adm8668_mtd, adm8668_mtd->size); - ret = mtd_device_register(adm8668_mtd, adm8668_parts, nr_parts); - if (ret) { - printk(KERN_ERR "Flash: mtd_device_register failed\n"); - goto fail; - } - - return 0; - - fail: - if (adm8668_mtd) - map_destroy(adm8668_mtd); - if (adm8668_map.virt) - iounmap((void *) adm8668_map.virt); - adm8668_map.virt = 0; - return ret; -} - -void __exit cleanup_adm8668_map(void) -{ - mtd_device_unregister(adm8668_mtd); - map_destroy(adm8668_mtd); - iounmap((void *) adm8668_map.virt); - adm8668_map.virt = 0; -} - -module_init(init_adm8668_map); -module_exit(cleanup_adm8668_map); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Scott Nicholas <neutronscott@scottn.us>"); -MODULE_DESCRIPTION("MTD map driver for ADM8668 NOR Flash"); |