mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-02-18 07:34:44 +02:00
dc3d3f1c49
it's basically also provided by ingenic and nativly based on 2.6.27, adjusted to fit into the OpenWrt-environment
287 lines
7.1 KiB
C
287 lines
7.1 KiB
C
/* eraseall.c -- erase the whole of a MTD device
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Copyright (C) 2000 Arcom Control System Ltd
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Renamed to flash_eraseall.c
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#include <sys/types.h>
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#include <stdio.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdint.h>
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#include <libgen.h>
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#include <ctype.h>
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#include <time.h>
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#include <getopt.h>
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#include <sys/ioctl.h>
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#include <sys/mount.h>
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#include "crc32.h"
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#include <mtd/mtd-user.h>
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#include <mtd/jffs2-user.h>
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#define PROGRAM "flash_eraseall"
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#define VERSION "$Revision: 1.1.1.1 $"
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static const char *exe_name;
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static const char *mtd_device;
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static int quiet; /* true -- don't output progress */
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static int jffs2; // format for jffs2 usage
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static void process_options (int argc, char *argv[]);
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static void display_help (void);
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static void display_version (void);
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static struct jffs2_unknown_node cleanmarker;
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int target_endian = __BYTE_ORDER;
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int main (int argc, char *argv[])
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{
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mtd_info_t meminfo;
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int fd, clmpos = 0, clmlen = 8;
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erase_info_t erase;
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int isNAND, bbtest = 1;
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process_options(argc, argv);
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if ((fd = open(mtd_device, O_RDWR)) < 0) {
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fprintf(stderr, "%s: %s: %s\n", exe_name, mtd_device, strerror(errno));
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exit(1);
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}
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if (ioctl(fd, MEMGETINFO, &meminfo) != 0) {
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fprintf(stderr, "%s: %s: unable to get MTD device info\n", exe_name, mtd_device);
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exit(1);
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}
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erase.length = meminfo.erasesize;
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isNAND = meminfo.type == MTD_NANDFLASH ? 1 : 0;
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if (jffs2) {
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cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
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cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
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if (!isNAND)
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cleanmarker.totlen = cpu_to_je32 (sizeof (struct jffs2_unknown_node));
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else {
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struct nand_oobinfo oobinfo;
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if (ioctl(fd, MEMGETOOBSEL, &oobinfo) != 0) {
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fprintf(stderr, "%s: %s: unable to get NAND oobinfo\n", exe_name, mtd_device);
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exit(1);
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}
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/* Check for autoplacement */
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if (oobinfo.useecc == MTD_NANDECC_AUTOPLACE) {
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/* Get the position of the free bytes */
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if (!oobinfo.oobfree[0][1]) {
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fprintf (stderr, " Eeep. Autoplacement selected and no empty space in oob\n");
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exit(1);
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}
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clmpos = oobinfo.oobfree[0][0];
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clmlen = oobinfo.oobfree[0][1];
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if (clmlen > 8)
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clmlen = 8;
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} else {
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/* Legacy mode */
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switch (meminfo.oobsize) {
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case 8:
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clmpos = 6;
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clmlen = 2;
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break;
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case 16:
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clmpos = 8;
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clmlen = 8;
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break;
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case 64:
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clmpos = 16;
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clmlen = 8;
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break;
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}
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}
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cleanmarker.totlen = cpu_to_je32(8);
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}
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cleanmarker.hdr_crc = cpu_to_je32 (crc32 (0, &cleanmarker, sizeof (struct jffs2_unknown_node) - 4));
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}
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for (erase.start = 0; erase.start < meminfo.size; erase.start += meminfo.erasesize) {
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if (bbtest) {
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unsigned long long offset = erase.start;
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int ret = ioctl(fd, MEMGETBADBLOCK, &offset);
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if (ret > 0) {
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if (!quiet)
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printf ("\nSkipping bad block at 0x%09llx\n", erase.start);
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continue;
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} else if (ret < 0) {
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if (errno == EOPNOTSUPP) {
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bbtest = 0;
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if (isNAND) {
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fprintf(stderr, "%s: %s: Bad block check not available\n", exe_name, mtd_device);
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exit(1);
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}
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} else {
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fprintf(stderr, "\n%s: %s: MTD get bad block failed: %s\n", exe_name, mtd_device, strerror(errno));
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exit(1);
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}
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}
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}
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if (!quiet) {
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printf
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("\rErasing %d Kibyte @ %llx -- %2u %% complete.",
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meminfo.erasesize / 1024, erase.start,
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(unsigned long long)
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erase.start * 100 / meminfo.size);
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}
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fflush(stdout);
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if (ioctl(fd, MEMERASE, &erase) != 0) {
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fprintf(stderr, "\n%s: %s: MTD Erase failure: %s\n", exe_name, mtd_device, strerror(errno));
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continue;
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}
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/* format for JFFS2 ? */
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if (!jffs2)
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continue;
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/* write cleanmarker */
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if (isNAND) {
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struct mtd_oob_buf oob;
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oob.ptr = (unsigned char *) &cleanmarker;
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oob.start = erase.start + clmpos;
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oob.length = clmlen;
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if (ioctl (fd, MEMWRITEOOB, &oob) != 0) {
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fprintf(stderr, "\n%s: %s: MTD writeoob failure: %s\n", exe_name, mtd_device, strerror(errno));
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continue;
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}
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} else {
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if (lseek (fd, erase.start, SEEK_SET) < 0) {
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fprintf(stderr, "\n%s: %s: MTD lseek failure: %s\n", exe_name, mtd_device, strerror(errno));
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continue;
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}
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if (write (fd , &cleanmarker, sizeof (cleanmarker)) != sizeof (cleanmarker)) {
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fprintf(stderr, "\n%s: %s: MTD write failure: %s\n", exe_name, mtd_device, strerror(errno));
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continue;
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}
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}
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if (!quiet)
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printf (" Cleanmarker written at %x.", erase.start);
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}
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if (!quiet)
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printf("\n");
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return 0;
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}
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void process_options (int argc, char *argv[])
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{
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int error = 0;
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exe_name = argv[0];
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for (;;) {
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int option_index = 0;
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static const char *short_options = "jq";
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static const struct option long_options[] = {
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{"help", no_argument, 0, 0},
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{"version", no_argument, 0, 0},
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{"jffs2", no_argument, 0, 'j'},
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{"quiet", no_argument, 0, 'q'},
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{"silent", no_argument, 0, 'q'},
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{0, 0, 0, 0},
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};
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int c = getopt_long(argc, argv, short_options,
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long_options, &option_index);
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if (c == EOF) {
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break;
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}
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switch (c) {
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case 0:
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switch (option_index) {
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case 0:
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display_help();
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break;
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case 1:
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display_version();
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break;
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}
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break;
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case 'q':
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quiet = 1;
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break;
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case 'j':
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jffs2 = 1;
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break;
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case '?':
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error = 1;
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break;
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}
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}
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if (optind == argc) {
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fprintf(stderr, "%s: no MTD device specified\n", exe_name);
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error = 1;
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}
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if (error) {
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fprintf(stderr, "Try `%s --help' for more information.\n",
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exe_name);
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exit(1);
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}
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mtd_device = argv[optind];
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}
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void display_help (void)
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{
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printf("Usage: %s [OPTION] MTD_DEVICE\n"
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"Erases all of the specified MTD device.\n"
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"\n"
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" -j, --jffs2 format the device for jffs2\n"
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" -q, --quiet don't display progress messages\n"
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" --silent same as --quiet\n"
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" --help display this help and exit\n"
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" --version output version information and exit\n",
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exe_name);
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exit(0);
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}
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void display_version (void)
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{
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printf(PROGRAM " " VERSION "\n"
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"\n"
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"Copyright (C) 2000 Arcom Control Systems Ltd\n"
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"\n"
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PROGRAM " comes with NO WARRANTY\n"
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"to the extent permitted by law.\n"
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"\n"
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"You may redistribute copies of " PROGRAM "\n"
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"under the terms of the GNU General Public Licence.\n"
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"See the file `COPYING' for more information.\n");
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exit(0);
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}
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