146 lines
3.1 KiB
C
146 lines
3.1 KiB
C
/*
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* Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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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 version 2
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* as published by the Free Software Foundation.
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*
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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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*
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*/
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#include <common.h>
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#include <command.h>
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#include <fs.h>
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#include <linux/stat.h>
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#include <errno.h>
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#include <malloc.h>
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#include <getopt.h>
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#include <xfuncs.h>
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#include <init.h>
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#include <ioctl.h>
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#include <nand.h>
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#include <linux/mtd/mtd-abi.h>
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#include <fcntl.h>
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#include <libgen.h>
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#define NAND_ADD 1
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#define NAND_DEL 2
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#define NAND_MARKBAD 3
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#define NAND_MARKGOOD 4
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static int do_nand(int argc, char *argv[])
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{
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int opt;
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int command = 0;
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loff_t badblock = 0;
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while((opt = getopt(argc, argv, "adb:g:")) > 0) {
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if (command) {
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printf("only one command may be given\n");
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return 1;
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}
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switch (opt) {
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case 'a':
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command = NAND_ADD;
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break;
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case 'd':
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command = NAND_DEL;
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break;
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case 'b':
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command = NAND_MARKBAD;
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badblock = strtoull_suffix(optarg, NULL, 0);
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break;
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case 'g':
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command = NAND_MARKGOOD;
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badblock = strtoull_suffix(optarg, NULL, 0);
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break;
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default:
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return COMMAND_ERROR_USAGE;
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}
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}
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if (optind >= argc)
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return COMMAND_ERROR_USAGE;
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if (!command) {
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printf("No action given\n");
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return COMMAND_ERROR_USAGE;
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}
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if (command == NAND_ADD) {
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while (optind < argc) {
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if (dev_add_bb_dev(basename(argv[optind]), NULL))
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return 1;
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optind++;
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}
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}
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if (command == NAND_DEL) {
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while (optind < argc) {
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dev_remove_bb_dev(basename(argv[optind]));
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optind++;
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}
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}
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if (command == NAND_MARKBAD || command == NAND_MARKGOOD) {
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int ret = 0, fd;
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const char *str;
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int ctl;
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if (command == NAND_MARKBAD) {
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str = "bad";
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ctl = MEMSETBADBLOCK;
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} else {
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str = "good";
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ctl = MEMSETGOODBLOCK;
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}
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printf("marking block at 0x%08llx on %s as %s\n",
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badblock, argv[optind], str);
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fd = open(argv[optind], O_RDWR);
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if (fd < 0) {
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perror("open");
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return 1;
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}
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ret = ioctl(fd, ctl, &badblock);
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if (ret) {
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if (ret == -EINVAL)
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printf("Maybe offset %lld is out of range.\n",
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badblock);
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else
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perror("ioctl");
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}
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close(fd);
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return ret;
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}
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return 0;
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}
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BAREBOX_CMD_HELP_START(nand)
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BAREBOX_CMD_HELP_TEXT("Options:")
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BAREBOX_CMD_HELP_OPT ("-a", "register a bad block aware device ontop of a normal NAND device")
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BAREBOX_CMD_HELP_OPT ("-d", "deregister a bad block aware device")
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BAREBOX_CMD_HELP_OPT ("-b OFFS", "mark block at OFFSet as bad")
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BAREBOX_CMD_HELP_OPT ("-g OFFS", "mark block at OFFSet as good")
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BAREBOX_CMD_HELP_END
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BAREBOX_CMD_START(nand)
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.cmd = do_nand,
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BAREBOX_CMD_DESC("NAND flash handling")
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BAREBOX_CMD_OPTS("[-adb] NANDDEV")
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BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
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BAREBOX_CMD_HELP(cmd_nand_help)
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BAREBOX_CMD_END
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