brcm47xx: use on common files dir
SVN-Revision: 24264
This commit is contained in:
Hauke Mehrtens
parent
51a79d4b65
commit
7b1ae48645
@ -1,596 +0,0 @@
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/*
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* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2005 Waldemar Brodkorb <wbx@openwrt.org>
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* Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
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*
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* original functions for finding root filesystem from Mike Baker
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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 as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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* Copyright 2001-2003, Broadcom Corporation
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* All Rights Reserved.
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*
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* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
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* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
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* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
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*
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* Flash mapping for BCM947XX boards
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*/
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/wait.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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#ifdef CONFIG_MTD_PARTITIONS
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#include <linux/mtd/partitions.h>
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#endif
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#include <linux/crc32.h>
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#ifdef CONFIG_SSB
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#include <linux/ssb/ssb.h>
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#endif
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#include <asm/io.h>
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#include <asm/mach-bcm47xx/nvram.h>
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#include <asm/fw/cfe/cfe_api.h>
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#define TRX_MAGIC 0x30524448 /* "HDR0" */
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#define TRX_VERSION 1
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#define TRX_MAX_LEN 0x3A0000
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#define TRX_NO_HEADER 1 /* Do not write TRX header */
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#define TRX_GZ_FILES 0x2 /* Contains up to TRX_MAX_OFFSET individual gzip files */
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#define TRX_MAX_OFFSET 3
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struct trx_header {
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u32 magic; /* "HDR0" */
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u32 len; /* Length of file including header */
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u32 crc32; /* 32-bit CRC from flag_version to end of file */
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u32 flag_version; /* 0:15 flags, 16:31 version */
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u32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of header */
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};
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/* for Edimax Print servers which use an additional header
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* then the firmware on flash looks like :
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* EDIMAX HEADER | TRX HEADER
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* As this header is 12 bytes long we have to handle it
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* and skip it to find the TRX header
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*/
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#define EDIMAX_PS_HEADER_MAGIC 0x36315350 /* "PS16" */
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#define EDIMAX_PS_HEADER_LEN 0xc /* 12 bytes long for edimax header */
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#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
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#define NVRAM_SPACE 0x8000
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#define WINDOW_ADDR 0x1fc00000
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#define WINDOW_SIZE 0x400000
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#define BUSWIDTH 2
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#define ROUTER_NETGEAR_WGR614L 1
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#define ROUTER_NETGEAR_WNR834B 2
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#define ROUTER_NETGEAR_WNDR3300 3
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#define ROUTER_NETGEAR_WNR3500L 4
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#ifdef CONFIG_SSB
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extern struct ssb_bus ssb_bcm47xx;
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#endif
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static struct mtd_info *bcm47xx_mtd;
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static void bcm47xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
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{
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if (len==1) {
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memcpy_fromio(to, map->virt + from, len);
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} else {
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int i;
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u16 *dest = (u16 *) to;
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u16 *src = (u16 *) (map->virt + from);
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for (i = 0; i < (len / 2); i++) {
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dest[i] = src[i];
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}
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if (len & 1)
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*((u8 *)dest+len-1) = src[i] & 0xff;
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}
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}
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static struct map_info bcm47xx_map = {
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name: "Physically mapped flash",
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size: WINDOW_SIZE,
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bankwidth: BUSWIDTH,
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phys: WINDOW_ADDR,
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};
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#ifdef CONFIG_MTD_PARTITIONS
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static struct mtd_partition bcm47xx_parts[] = {
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{ name: "cfe", offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
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{ name: "linux", offset: 0, size: 0, },
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{ name: "rootfs", offset: 0, size: 0, },
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{ name: "nvram", offset: 0, size: 0, },
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{ name: NULL, },
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};
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static int __init
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find_cfe_size(struct mtd_info *mtd, size_t size)
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{
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struct trx_header *trx;
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unsigned char buf[512];
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int off;
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size_t len;
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int blocksize;
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trx = (struct trx_header *) buf;
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blocksize = mtd->erasesize;
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if (blocksize < 0x10000)
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blocksize = 0x10000;
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for (off = (128*1024); off < size; off += blocksize) {
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memset(buf, 0xe5, sizeof(buf));
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/*
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* Read into buffer
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*/
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if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
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len != sizeof(buf))
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continue;
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if (le32_to_cpu(trx->magic) == EDIMAX_PS_HEADER_MAGIC) {
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if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
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sizeof(buf), &len, buf) || len != sizeof(buf)) {
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continue;
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} else {
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printk(KERN_NOTICE"Found edimax header\n");
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}
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}
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/* found a TRX header */
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if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
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goto found;
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}
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}
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printk(KERN_NOTICE
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"%s: Couldn't find bootloader size\n",
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mtd->name);
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return -1;
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found:
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printk(KERN_NOTICE "bootloader size: %d\n", off);
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return off;
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}
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/*
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* Copied from mtdblock.c
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*
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* Cache stuff...
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*
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* Since typical flash erasable sectors are much larger than what Linux's
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* buffer cache can handle, we must implement read-modify-write on flash
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* sectors for each block write requests. To avoid over-erasing flash sectors
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* and to speed things up, we locally cache a whole flash sector while it is
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* being written to until a different sector is required.
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*/
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static void erase_callback(struct erase_info *done)
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{
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wait_queue_head_t *wait_q = (wait_queue_head_t *)done->priv;
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wake_up(wait_q);
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}
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static int erase_write (struct mtd_info *mtd, unsigned long pos,
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int len, const char *buf)
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{
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struct erase_info erase;
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DECLARE_WAITQUEUE(wait, current);
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wait_queue_head_t wait_q;
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size_t retlen;
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int ret;
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/*
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* First, let's erase the flash block.
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*/
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init_waitqueue_head(&wait_q);
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erase.mtd = mtd;
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erase.callback = erase_callback;
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erase.addr = pos;
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erase.len = len;
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erase.priv = (u_long)&wait_q;
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set_current_state(TASK_INTERRUPTIBLE);
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add_wait_queue(&wait_q, &wait);
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ret = mtd->erase(mtd, &erase);
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if (ret) {
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set_current_state(TASK_RUNNING);
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remove_wait_queue(&wait_q, &wait);
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printk (KERN_WARNING "erase of region [0x%lx, 0x%x] "
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"on \"%s\" failed\n",
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pos, len, mtd->name);
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return ret;
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}
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schedule(); /* Wait for erase to finish. */
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remove_wait_queue(&wait_q, &wait);
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/*
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* Next, write data to flash.
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*/
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ret = mtd->write (mtd, pos, len, &retlen, buf);
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if (ret)
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return ret;
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if (retlen != len)
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return -EIO;
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return 0;
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}
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static int __init
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find_dual_image_off (struct mtd_info *mtd, size_t size)
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{
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struct trx_header trx;
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int off, blocksize;
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size_t len;
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blocksize = mtd->erasesize;
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if (blocksize < 0x10000)
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blocksize = 0x10000;
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for (off = (128*1024); off < size; off += blocksize) {
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memset(&trx, 0xe5, sizeof(trx));
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/*
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* Read into buffer
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*/
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if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
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len != sizeof(trx))
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continue;
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/* found last TRX header */
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if (le32_to_cpu(trx.magic) == TRX_MAGIC){
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if (le32_to_cpu(trx.flag_version >> 16)==2){
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printk("dual image TRX header found\n");
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return size/2;
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} else {
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return 0;
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}
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}
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}
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return 0;
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}
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static int __init
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find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
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{
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struct trx_header trx, *trx2;
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unsigned char buf[512], *block;
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int off, blocksize, trxoff = 0;
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u32 i, crc = ~0;
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size_t len;
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bool edimax = false;
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blocksize = mtd->erasesize;
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if (blocksize < 0x10000)
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blocksize = 0x10000;
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for (off = (128*1024); off < size; off += blocksize) {
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memset(&trx, 0xe5, sizeof(trx));
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/*
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* Read into buffer
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*/
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if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
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len != sizeof(trx))
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continue;
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/* found an edimax header */
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if (le32_to_cpu(trx.magic) == EDIMAX_PS_HEADER_MAGIC) {
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/* read the correct trx header */
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if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
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sizeof(trx), &len, (char *) &trx) ||
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len != sizeof(trx)) {
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continue;
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} else {
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printk(KERN_NOTICE"Found an edimax ps header\n");
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edimax = true;
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}
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}
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/* found a TRX header */
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if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
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part->offset = le32_to_cpu(trx.offsets[2]) ? :
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le32_to_cpu(trx.offsets[1]);
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part->size = le32_to_cpu(trx.len);
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part->size -= part->offset;
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part->offset += off;
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if (edimax) {
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off += EDIMAX_PS_HEADER_LEN;
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trxoff = EDIMAX_PS_HEADER_LEN;
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}
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goto found;
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}
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}
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printk(KERN_NOTICE
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"%s: Couldn't find root filesystem\n",
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mtd->name);
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return -1;
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found:
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printk(KERN_NOTICE"TRX offset : %lx\n", trxoff);
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if (part->size == 0)
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return 0;
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if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
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return 0;
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/* Move the fs outside of the trx */
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part->size = 0;
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if (trx.len != part->offset + part->size - off) {
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/* Update the trx offsets and length */
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trx.len = part->offset + part->size - off;
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/* Update the trx crc32 */
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for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
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if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
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return 0;
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crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
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}
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trx.crc32 = crc;
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/* read first eraseblock from the trx */
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block = kmalloc(mtd->erasesize, GFP_KERNEL);
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trx2 = (struct trx_header *) block;
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if (mtd->read(mtd, off - trxoff, mtd->erasesize, &len, block) || len != mtd->erasesize) {
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printk("Error accessing the first trx eraseblock\n");
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return 0;
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}
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printk("Updating TRX offsets and length:\n");
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printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
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printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx.offsets[0], trx.offsets[1], trx.offsets[2], trx.len, trx.crc32);
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/* Write updated trx header to the flash */
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memcpy(block + trxoff, &trx, sizeof(trx));
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if (mtd->unlock)
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mtd->unlock(mtd, off - trxoff, mtd->erasesize);
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erase_write(mtd, off - trxoff, mtd->erasesize, block);
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if (mtd->sync)
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mtd->sync(mtd);
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kfree(block);
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printk("Done\n");
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}
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return part->size;
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}
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static int get_router(void)
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{
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char buf[20];
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u32 boardnum = 0;
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u16 boardtype = 0;
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u16 boardrev = 0;
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u32 boardflags = 0;
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u16 sdram_init = 0;
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u16 cardbus = 0;
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if (nvram_getenv("boardnum", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("boardnum", buf, sizeof(buf)) >= 0)
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boardnum = simple_strtoul(buf, NULL, 0);
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if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("boardtype", buf, sizeof(buf)) >= 0)
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boardtype = simple_strtoul(buf, NULL, 0);
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if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("boardrev", buf, sizeof(buf)) >= 0)
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boardrev = simple_strtoul(buf, NULL, 0);
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if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("boardflags", buf, sizeof(buf)) >= 0)
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boardflags = simple_strtoul(buf, NULL, 0);
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if (nvram_getenv("sdram_init", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("sdram_init", buf, sizeof(buf)) >= 0)
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sdram_init = simple_strtoul(buf, NULL, 0);
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if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0 ||
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cfe_getenv("cardbus", buf, sizeof(buf)) >= 0)
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cardbus = simple_strtoul(buf, NULL, 0);
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if ((boardnum == 8 || boardnum == 01)
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&& boardtype == 0x0472 && cardbus == 1) {
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/* Netgear WNR834B, Netgear WNR834Bv2 */
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return ROUTER_NETGEAR_WNR834B;
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}
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if (boardnum == 01 && boardtype == 0x0472 && boardrev == 0x23) {
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/* Netgear WNDR-3300 */
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return ROUTER_NETGEAR_WNDR3300;
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}
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if ((boardnum == 83258 || boardnum == 01)
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&& boardtype == 0x048e
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&& (boardrev == 0x11 || boardrev == 0x10)
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&& boardflags == 0x750
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&& sdram_init == 0x000A) {
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/* Netgear WGR614v8/L/WW 16MB ram, cfe v1.3 or v1.5 */
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return ROUTER_NETGEAR_WGR614L;
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}
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if ((boardnum == 1 || boardnum == 3500)
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&& boardtype == 0x04CF
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&& (boardrev == 0x1213 || boardrev == 02)) {
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/* Netgear WNR3500v2/U/L */
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return ROUTER_NETGEAR_WNR3500L;
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}
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return 0;
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}
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struct mtd_partition * __init
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init_mtd_partitions(struct mtd_info *mtd, size_t size)
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{
|
||||
int cfe_size;
|
||||
int dual_image_offset = 0;
|
||||
/* e.g Netgear 0x003e0000-0x003f0000 : "board_data", we exclude this
|
||||
* part from our mapping to prevent overwriting len/checksum on e.g.
|
||||
* Netgear WGR614v8/L/WW
|
||||
*/
|
||||
int board_data_size = 0;
|
||||
|
||||
switch (get_router()) {
|
||||
case ROUTER_NETGEAR_WGR614L:
|
||||
case ROUTER_NETGEAR_WNR834B:
|
||||
case ROUTER_NETGEAR_WNDR3300:
|
||||
case ROUTER_NETGEAR_WNR3500L:
|
||||
/* Netgear: checksum is @ 0x003AFFF8 for 4M flash or checksum
|
||||
* is @ 0x007AFFF8 for 8M flash
|
||||
*/
|
||||
board_data_size = 4 * mtd->erasesize;
|
||||
break;
|
||||
}
|
||||
|
||||
if ((cfe_size = find_cfe_size(mtd,size)) < 0)
|
||||
return NULL;
|
||||
|
||||
/* boot loader */
|
||||
bcm47xx_parts[0].offset = 0;
|
||||
bcm47xx_parts[0].size = cfe_size;
|
||||
|
||||
/* nvram */
|
||||
if (cfe_size != 384 * 1024) {
|
||||
bcm47xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
bcm47xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
} else {
|
||||
/* nvram (old 128kb config partition on netgear wgt634u) */
|
||||
bcm47xx_parts[3].offset = bcm47xx_parts[0].size;
|
||||
bcm47xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
}
|
||||
|
||||
/* dual image offset*/
|
||||
printk("Looking for dual image\n");
|
||||
dual_image_offset=find_dual_image_off(mtd,size);
|
||||
/* linux (kernel and rootfs) */
|
||||
if (cfe_size != 384 * 1024) {
|
||||
bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
|
||||
bcm47xx_parts[1].size = bcm47xx_parts[3].offset - dual_image_offset -
|
||||
bcm47xx_parts[1].offset - board_data_size;
|
||||
} else {
|
||||
/* do not count the elf loader, which is on one block */
|
||||
bcm47xx_parts[1].offset = bcm47xx_parts[0].size +
|
||||
bcm47xx_parts[3].size + mtd->erasesize;
|
||||
bcm47xx_parts[1].size = size -
|
||||
bcm47xx_parts[0].size -
|
||||
(2*bcm47xx_parts[3].size) -
|
||||
mtd->erasesize - board_data_size;
|
||||
}
|
||||
|
||||
/* find and size rootfs */
|
||||
find_root(mtd,size,&bcm47xx_parts[2]);
|
||||
bcm47xx_parts[2].size = size - dual_image_offset -
|
||||
bcm47xx_parts[2].offset -
|
||||
bcm47xx_parts[3].size - board_data_size;
|
||||
|
||||
return bcm47xx_parts;
|
||||
}
|
||||
#endif
|
||||
|
||||
int __init init_bcm47xx_map(void)
|
||||
{
|
||||
#ifdef CONFIG_SSB
|
||||
struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
|
||||
#endif
|
||||
size_t size;
|
||||
int ret = 0;
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
struct mtd_partition *parts;
|
||||
int i;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_SSB
|
||||
u32 window = mcore->flash_window;
|
||||
u32 window_size = mcore->flash_window_size;
|
||||
|
||||
printk("flash init: 0x%08x 0x%08x\n", window, window_size);
|
||||
bcm47xx_map.phys = window;
|
||||
bcm47xx_map.size = window_size;
|
||||
bcm47xx_map.bankwidth = mcore->flash_buswidth;
|
||||
bcm47xx_map.virt = ioremap_nocache(window, window_size);
|
||||
#else
|
||||
printk("flash init: 0x%08x 0x%08x\n", WINDOW_ADDR, WINDOW_SIZE);
|
||||
bcm47xx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
|
||||
#endif
|
||||
|
||||
if (!bcm47xx_map.virt) {
|
||||
printk("Failed to ioremap\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
simple_map_init(&bcm47xx_map);
|
||||
|
||||
if (!(bcm47xx_mtd = do_map_probe("cfi_probe", &bcm47xx_map))) {
|
||||
printk("Failed to do_map_probe\n");
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
/* override copy_from routine */
|
||||
bcm47xx_map.copy_from = bcm47xx_map_copy_from;
|
||||
|
||||
bcm47xx_mtd->owner = THIS_MODULE;
|
||||
|
||||
size = bcm47xx_mtd->size;
|
||||
|
||||
printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
|
||||
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
parts = init_mtd_partitions(bcm47xx_mtd, size);
|
||||
for (i = 0; parts[i].name; i++);
|
||||
ret = add_mtd_partitions(bcm47xx_mtd, parts, i);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
|
||||
goto fail;
|
||||
}
|
||||
#endif
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (bcm47xx_mtd)
|
||||
map_destroy(bcm47xx_mtd);
|
||||
if (bcm47xx_map.virt)
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
bcm47xx_map.virt = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
void __exit cleanup_bcm47xx_map(void)
|
||||
{
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
del_mtd_partitions(bcm47xx_mtd);
|
||||
#endif
|
||||
map_destroy(bcm47xx_mtd);
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
}
|
||||
|
||||
module_init(init_bcm47xx_map);
|
||||
module_exit(cleanup_bcm47xx_map);
|
||||
@ -1,596 +0,0 @@
|
||||
/*
|
||||
* Copyright (C) 2006 Felix Fietkau <nbd@openwrt.org>
|
||||
* 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 2001-2003, 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 BCM947XX boards
|
||||
*/
|
||||
|
||||
#include <linux/init.h>
|
||||
#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>
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
#include <linux/mtd/partitions.h>
|
||||
#endif
|
||||
#include <linux/crc32.h>
|
||||
#ifdef CONFIG_SSB
|
||||
#include <linux/ssb/ssb.h>
|
||||
#endif
|
||||
#include <asm/io.h>
|
||||
#include <asm/mach-bcm47xx/nvram.h>
|
||||
#include <asm/fw/cfe/cfe_api.h>
|
||||
|
||||
|
||||
#define TRX_MAGIC 0x30524448 /* "HDR0" */
|
||||
#define TRX_VERSION 1
|
||||
#define TRX_MAX_LEN 0x3A0000
|
||||
#define TRX_NO_HEADER 1 /* Do not write TRX header */
|
||||
#define TRX_GZ_FILES 0x2 /* Contains up to TRX_MAX_OFFSET individual gzip files */
|
||||
#define TRX_MAX_OFFSET 3
|
||||
|
||||
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 from start of header */
|
||||
};
|
||||
|
||||
/* for Edimax Print servers which use an additional header
|
||||
* then the firmware on flash looks like :
|
||||
* EDIMAX HEADER | TRX HEADER
|
||||
* As this header is 12 bytes long we have to handle it
|
||||
* and skip it to find the TRX header
|
||||
*/
|
||||
#define EDIMAX_PS_HEADER_MAGIC 0x36315350 /* "PS16" */
|
||||
#define EDIMAX_PS_HEADER_LEN 0xc /* 12 bytes long for edimax header */
|
||||
|
||||
#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
|
||||
#define NVRAM_SPACE 0x8000
|
||||
#define WINDOW_ADDR 0x1fc00000
|
||||
#define WINDOW_SIZE 0x400000
|
||||
#define BUSWIDTH 2
|
||||
|
||||
#define ROUTER_NETGEAR_WGR614L 1
|
||||
#define ROUTER_NETGEAR_WNR834B 2
|
||||
#define ROUTER_NETGEAR_WNDR3300 3
|
||||
#define ROUTER_NETGEAR_WNR3500L 4
|
||||
|
||||
#ifdef CONFIG_SSB
|
||||
extern struct ssb_bus ssb_bcm47xx;
|
||||
#endif
|
||||
static struct mtd_info *bcm47xx_mtd;
|
||||
|
||||
static void bcm47xx_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
|
||||
{
|
||||
if (len==1) {
|
||||
memcpy_fromio(to, map->virt + from, len);
|
||||
} else {
|
||||
int i;
|
||||
u16 *dest = (u16 *) to;
|
||||
u16 *src = (u16 *) (map->virt + from);
|
||||
for (i = 0; i < (len / 2); i++) {
|
||||
dest[i] = src[i];
|
||||
}
|
||||
if (len & 1)
|
||||
*((u8 *)dest+len-1) = src[i] & 0xff;
|
||||
}
|
||||
}
|
||||
|
||||
static struct map_info bcm47xx_map = {
|
||||
name: "Physically mapped flash",
|
||||
size: WINDOW_SIZE,
|
||||
bankwidth: BUSWIDTH,
|
||||
phys: WINDOW_ADDR,
|
||||
};
|
||||
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
|
||||
static struct mtd_partition bcm47xx_parts[] = {
|
||||
{ name: "cfe", offset: 0, size: 0, mask_flags: MTD_WRITEABLE, },
|
||||
{ name: "linux", offset: 0, size: 0, },
|
||||
{ name: "rootfs", offset: 0, size: 0, },
|
||||
{ name: "nvram", offset: 0, size: 0, },
|
||||
{ name: NULL, },
|
||||
};
|
||||
|
||||
static int __init
|
||||
find_cfe_size(struct mtd_info *mtd, size_t size)
|
||||
{
|
||||
struct trx_header *trx;
|
||||
unsigned char buf[512];
|
||||
int off;
|
||||
size_t len;
|
||||
int blocksize;
|
||||
|
||||
trx = (struct trx_header *) buf;
|
||||
|
||||
blocksize = mtd->erasesize;
|
||||
if (blocksize < 0x10000)
|
||||
blocksize = 0x10000;
|
||||
|
||||
for (off = (128*1024); off < size; off += blocksize) {
|
||||
memset(buf, 0xe5, sizeof(buf));
|
||||
|
||||
/*
|
||||
* Read into buffer
|
||||
*/
|
||||
if (mtd->read(mtd, off, sizeof(buf), &len, buf) ||
|
||||
len != sizeof(buf))
|
||||
continue;
|
||||
|
||||
if (le32_to_cpu(trx->magic) == EDIMAX_PS_HEADER_MAGIC) {
|
||||
if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
|
||||
sizeof(buf), &len, buf) || len != sizeof(buf)) {
|
||||
continue;
|
||||
} else {
|
||||
printk(KERN_NOTICE"Found edimax header\n");
|
||||
}
|
||||
}
|
||||
|
||||
/* found a TRX header */
|
||||
if (le32_to_cpu(trx->magic) == TRX_MAGIC) {
|
||||
goto found;
|
||||
}
|
||||
}
|
||||
|
||||
printk(KERN_NOTICE
|
||||
"%s: Couldn't find bootloader size\n",
|
||||
mtd->name);
|
||||
return -1;
|
||||
|
||||
found:
|
||||
printk(KERN_NOTICE "bootloader size: %d\n", off);
|
||||
return off;
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* 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;
|
||||
}
|
||||
|
||||
|
||||
static int __init
|
||||
find_dual_image_off (struct mtd_info *mtd, size_t size)
|
||||
{
|
||||
struct trx_header trx;
|
||||
int off, blocksize;
|
||||
size_t len;
|
||||
|
||||
blocksize = mtd->erasesize;
|
||||
if (blocksize < 0x10000)
|
||||
blocksize = 0x10000;
|
||||
|
||||
for (off = (128*1024); off < size; off += blocksize) {
|
||||
memset(&trx, 0xe5, sizeof(trx));
|
||||
/*
|
||||
* Read into buffer
|
||||
*/
|
||||
if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
|
||||
len != sizeof(trx))
|
||||
continue;
|
||||
/* found last TRX header */
|
||||
if (le32_to_cpu(trx.magic) == TRX_MAGIC){
|
||||
if (le32_to_cpu(trx.flag_version >> 16)==2){
|
||||
printk("dual image TRX header found\n");
|
||||
return size/2;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static int __init
|
||||
find_root(struct mtd_info *mtd, size_t size, struct mtd_partition *part)
|
||||
{
|
||||
struct trx_header trx, *trx2;
|
||||
unsigned char buf[512], *block;
|
||||
int off, blocksize, trxoff = 0;
|
||||
u32 i, crc = ~0;
|
||||
size_t len;
|
||||
bool edimax = false;
|
||||
|
||||
blocksize = mtd->erasesize;
|
||||
if (blocksize < 0x10000)
|
||||
blocksize = 0x10000;
|
||||
|
||||
for (off = (128*1024); off < size; off += blocksize) {
|
||||
memset(&trx, 0xe5, sizeof(trx));
|
||||
|
||||
/*
|
||||
* Read into buffer
|
||||
*/
|
||||
if (mtd->read(mtd, off, sizeof(trx), &len, (char *) &trx) ||
|
||||
len != sizeof(trx))
|
||||
continue;
|
||||
|
||||
/* found an edimax header */
|
||||
if (le32_to_cpu(trx.magic) == EDIMAX_PS_HEADER_MAGIC) {
|
||||
/* read the correct trx header */
|
||||
if (mtd->read(mtd, off + EDIMAX_PS_HEADER_LEN,
|
||||
sizeof(trx), &len, (char *) &trx) ||
|
||||
len != sizeof(trx)) {
|
||||
continue;
|
||||
} else {
|
||||
printk(KERN_NOTICE"Found an edimax ps header\n");
|
||||
edimax = true;
|
||||
}
|
||||
}
|
||||
|
||||
/* found a TRX header */
|
||||
if (le32_to_cpu(trx.magic) == TRX_MAGIC) {
|
||||
part->offset = le32_to_cpu(trx.offsets[2]) ? :
|
||||
le32_to_cpu(trx.offsets[1]);
|
||||
part->size = le32_to_cpu(trx.len);
|
||||
|
||||
part->size -= part->offset;
|
||||
part->offset += off;
|
||||
if (edimax) {
|
||||
off += EDIMAX_PS_HEADER_LEN;
|
||||
trxoff = EDIMAX_PS_HEADER_LEN;
|
||||
}
|
||||
|
||||
goto found;
|
||||
}
|
||||
}
|
||||
|
||||
printk(KERN_NOTICE
|
||||
"%s: Couldn't find root filesystem\n",
|
||||
mtd->name);
|
||||
return -1;
|
||||
|
||||
found:
|
||||
printk(KERN_NOTICE"TRX offset : %lx\n", trxoff);
|
||||
if (part->size == 0)
|
||||
return 0;
|
||||
|
||||
if (mtd->read(mtd, part->offset, sizeof(buf), &len, buf) || len != sizeof(buf))
|
||||
return 0;
|
||||
|
||||
/* Move the fs outside of the trx */
|
||||
part->size = 0;
|
||||
|
||||
if (trx.len != part->offset + part->size - off) {
|
||||
/* Update the trx offsets and length */
|
||||
trx.len = part->offset + part->size - off;
|
||||
|
||||
/* Update the trx crc32 */
|
||||
for (i = (u32) &(((struct trx_header *)NULL)->flag_version); i <= trx.len; i += sizeof(buf)) {
|
||||
if (mtd->read(mtd, off + i, sizeof(buf), &len, buf) || len != sizeof(buf))
|
||||
return 0;
|
||||
crc = crc32_le(crc, buf, min(sizeof(buf), trx.len - i));
|
||||
}
|
||||
trx.crc32 = crc;
|
||||
|
||||
/* read first eraseblock from the trx */
|
||||
block = kmalloc(mtd->erasesize, GFP_KERNEL);
|
||||
trx2 = (struct trx_header *) block;
|
||||
if (mtd->read(mtd, off - trxoff, mtd->erasesize, &len, block) || len != mtd->erasesize) {
|
||||
printk("Error accessing the first trx eraseblock\n");
|
||||
return 0;
|
||||
}
|
||||
|
||||
printk("Updating TRX offsets and length:\n");
|
||||
printk("old trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx2->offsets[0], trx2->offsets[1], trx2->offsets[2], trx2->len, trx2->crc32);
|
||||
printk("new trx = [0x%08x, 0x%08x, 0x%08x], len=0x%08x crc32=0x%08x\n", trx.offsets[0], trx.offsets[1], trx.offsets[2], trx.len, trx.crc32);
|
||||
|
||||
/* Write updated trx header to the flash */
|
||||
memcpy(block + trxoff, &trx, sizeof(trx));
|
||||
if (mtd->unlock)
|
||||
mtd->unlock(mtd, off - trxoff, mtd->erasesize);
|
||||
erase_write(mtd, off - trxoff, mtd->erasesize, block);
|
||||
if (mtd->sync)
|
||||
mtd->sync(mtd);
|
||||
kfree(block);
|
||||
printk("Done\n");
|
||||
}
|
||||
|
||||
return part->size;
|
||||
}
|
||||
|
||||
static int get_router(void)
|
||||
{
|
||||
char buf[20];
|
||||
u32 boardnum = 0;
|
||||
u16 boardtype = 0;
|
||||
u16 boardrev = 0;
|
||||
u32 boardflags = 0;
|
||||
u16 sdram_init = 0;
|
||||
u16 cardbus = 0;
|
||||
|
||||
if (nvram_getenv("boardnum", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("boardnum", buf, sizeof(buf)) >= 0)
|
||||
boardnum = simple_strtoul(buf, NULL, 0);
|
||||
if (nvram_getenv("boardtype", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("boardtype", buf, sizeof(buf)) >= 0)
|
||||
boardtype = simple_strtoul(buf, NULL, 0);
|
||||
if (nvram_getenv("boardrev", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("boardrev", buf, sizeof(buf)) >= 0)
|
||||
boardrev = simple_strtoul(buf, NULL, 0);
|
||||
if (nvram_getenv("boardflags", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("boardflags", buf, sizeof(buf)) >= 0)
|
||||
boardflags = simple_strtoul(buf, NULL, 0);
|
||||
if (nvram_getenv("sdram_init", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("sdram_init", buf, sizeof(buf)) >= 0)
|
||||
sdram_init = simple_strtoul(buf, NULL, 0);
|
||||
if (nvram_getenv("cardbus", buf, sizeof(buf)) >= 0 ||
|
||||
cfe_getenv("cardbus", buf, sizeof(buf)) >= 0)
|
||||
cardbus = simple_strtoul(buf, NULL, 0);
|
||||
|
||||
if ((boardnum == 8 || boardnum == 01)
|
||||
&& boardtype == 0x0472 && cardbus == 1) {
|
||||
/* Netgear WNR834B, Netgear WNR834Bv2 */
|
||||
return ROUTER_NETGEAR_WNR834B;
|
||||
}
|
||||
|
||||
if (boardnum == 01 && boardtype == 0x0472 && boardrev == 0x23) {
|
||||
/* Netgear WNDR-3300 */
|
||||
return ROUTER_NETGEAR_WNDR3300;
|
||||
}
|
||||
|
||||
if ((boardnum == 83258 || boardnum == 01)
|
||||
&& boardtype == 0x048e
|
||||
&& (boardrev == 0x11 || boardrev == 0x10)
|
||||
&& boardflags == 0x750
|
||||
&& sdram_init == 0x000A) {
|
||||
/* Netgear WGR614v8/L/WW 16MB ram, cfe v1.3 or v1.5 */
|
||||
return ROUTER_NETGEAR_WGR614L;
|
||||
}
|
||||
|
||||
if ((boardnum == 1 || boardnum == 3500)
|
||||
&& boardtype == 0x04CF
|
||||
&& (boardrev == 0x1213 || boardrev == 02)) {
|
||||
/* Netgear WNR3500v2/U/L */
|
||||
return ROUTER_NETGEAR_WNR3500L;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct mtd_partition * __init
|
||||
init_mtd_partitions(struct mtd_info *mtd, size_t size)
|
||||
{
|
||||
int cfe_size;
|
||||
int dual_image_offset = 0;
|
||||
/* e.g Netgear 0x003e0000-0x003f0000 : "board_data", we exclude this
|
||||
* part from our mapping to prevent overwriting len/checksum on e.g.
|
||||
* Netgear WGR614v8/L/WW
|
||||
*/
|
||||
int board_data_size = 0;
|
||||
|
||||
switch (get_router()) {
|
||||
case ROUTER_NETGEAR_WGR614L:
|
||||
case ROUTER_NETGEAR_WNR834B:
|
||||
case ROUTER_NETGEAR_WNDR3300:
|
||||
case ROUTER_NETGEAR_WNR3500L:
|
||||
/* Netgear: checksum is @ 0x003AFFF8 for 4M flash or checksum
|
||||
* is @ 0x007AFFF8 for 8M flash
|
||||
*/
|
||||
board_data_size = 4 * mtd->erasesize;
|
||||
break;
|
||||
}
|
||||
|
||||
if ((cfe_size = find_cfe_size(mtd,size)) < 0)
|
||||
return NULL;
|
||||
|
||||
/* boot loader */
|
||||
bcm47xx_parts[0].offset = 0;
|
||||
bcm47xx_parts[0].size = cfe_size;
|
||||
|
||||
/* nvram */
|
||||
if (cfe_size != 384 * 1024) {
|
||||
bcm47xx_parts[3].offset = size - ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
bcm47xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
} else {
|
||||
/* nvram (old 128kb config partition on netgear wgt634u) */
|
||||
bcm47xx_parts[3].offset = bcm47xx_parts[0].size;
|
||||
bcm47xx_parts[3].size = ROUNDUP(NVRAM_SPACE, mtd->erasesize);
|
||||
}
|
||||
|
||||
/* dual image offset*/
|
||||
printk("Looking for dual image\n");
|
||||
dual_image_offset=find_dual_image_off(mtd,size);
|
||||
/* linux (kernel and rootfs) */
|
||||
if (cfe_size != 384 * 1024) {
|
||||
bcm47xx_parts[1].offset = bcm47xx_parts[0].size;
|
||||
bcm47xx_parts[1].size = bcm47xx_parts[3].offset - dual_image_offset -
|
||||
bcm47xx_parts[1].offset - board_data_size;
|
||||
} else {
|
||||
/* do not count the elf loader, which is on one block */
|
||||
bcm47xx_parts[1].offset = bcm47xx_parts[0].size +
|
||||
bcm47xx_parts[3].size + mtd->erasesize;
|
||||
bcm47xx_parts[1].size = size -
|
||||
bcm47xx_parts[0].size -
|
||||
(2*bcm47xx_parts[3].size) -
|
||||
mtd->erasesize - board_data_size;
|
||||
}
|
||||
|
||||
/* find and size rootfs */
|
||||
find_root(mtd,size,&bcm47xx_parts[2]);
|
||||
bcm47xx_parts[2].size = size - dual_image_offset -
|
||||
bcm47xx_parts[2].offset -
|
||||
bcm47xx_parts[3].size - board_data_size;
|
||||
|
||||
return bcm47xx_parts;
|
||||
}
|
||||
#endif
|
||||
|
||||
int __init init_bcm47xx_map(void)
|
||||
{
|
||||
#ifdef CONFIG_SSB
|
||||
struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
|
||||
#endif
|
||||
size_t size;
|
||||
int ret = 0;
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
struct mtd_partition *parts;
|
||||
int i;
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_SSB
|
||||
u32 window = mcore->flash_window;
|
||||
u32 window_size = mcore->flash_window_size;
|
||||
|
||||
printk("flash init: 0x%08x 0x%08x\n", window, window_size);
|
||||
bcm47xx_map.phys = window;
|
||||
bcm47xx_map.size = window_size;
|
||||
bcm47xx_map.bankwidth = mcore->flash_buswidth;
|
||||
bcm47xx_map.virt = ioremap_nocache(window, window_size);
|
||||
#else
|
||||
printk("flash init: 0x%08x 0x%08x\n", WINDOW_ADDR, WINDOW_SIZE);
|
||||
bcm47xx_map.virt = ioremap_nocache(WINDOW_ADDR, WINDOW_SIZE);
|
||||
#endif
|
||||
|
||||
if (!bcm47xx_map.virt) {
|
||||
printk("Failed to ioremap\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
simple_map_init(&bcm47xx_map);
|
||||
|
||||
if (!(bcm47xx_mtd = do_map_probe("cfi_probe", &bcm47xx_map))) {
|
||||
printk("Failed to do_map_probe\n");
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
/* override copy_from routine */
|
||||
bcm47xx_map.copy_from = bcm47xx_map_copy_from;
|
||||
|
||||
bcm47xx_mtd->owner = THIS_MODULE;
|
||||
|
||||
size = bcm47xx_mtd->size;
|
||||
|
||||
printk(KERN_NOTICE "Flash device: 0x%x at 0x%x\n", size, WINDOW_ADDR);
|
||||
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
parts = init_mtd_partitions(bcm47xx_mtd, size);
|
||||
for (i = 0; parts[i].name; i++);
|
||||
ret = add_mtd_partitions(bcm47xx_mtd, parts, i);
|
||||
if (ret) {
|
||||
printk(KERN_ERR "Flash: add_mtd_partitions failed\n");
|
||||
goto fail;
|
||||
}
|
||||
#endif
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
if (bcm47xx_mtd)
|
||||
map_destroy(bcm47xx_mtd);
|
||||
if (bcm47xx_map.virt)
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
bcm47xx_map.virt = 0;
|
||||
return ret;
|
||||
}
|
||||
|
||||
void __exit cleanup_bcm47xx_map(void)
|
||||
{
|
||||
#ifdef CONFIG_MTD_PARTITIONS
|
||||
del_mtd_partitions(bcm47xx_mtd);
|
||||
#endif
|
||||
map_destroy(bcm47xx_mtd);
|
||||
iounmap((void *)bcm47xx_map.virt);
|
||||
}
|
||||
|
||||
module_init(init_bcm47xx_map);
|
||||
module_exit(cleanup_bcm47xx_map);
|
||||
Loading…
Reference in New Issue
Block a user