/* * Copyright (c) 2008 Sascha Hauer , Pengutronix * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define NAND_ADD 1 #define NAND_DEL 2 #define NAND_MARKBAD 3 static int do_nand(int argc, char *argv[]) { int opt; int command = 0; loff_t badblock = 0; while((opt = getopt(argc, argv, "adb:")) > 0) { if (command) { printf("only one command may be given\n"); return 1; } switch (opt) { case 'a': command = NAND_ADD; break; case 'd': command = NAND_DEL; break; case 'b': command = NAND_MARKBAD; badblock = strtoull_suffix(optarg, NULL, 0); } } if (optind >= argc) return COMMAND_ERROR_USAGE; if (command == NAND_ADD) { while (optind < argc) { if (dev_add_bb_dev(basename(argv[optind]), NULL)) return 1; optind++; } } if (command == NAND_DEL) { while (optind < argc) { dev_remove_bb_dev(basename(argv[optind])); optind++; } } if (command == NAND_MARKBAD) { int ret = 0, fd; printf("marking block at 0x%08llx on %s as bad\n", badblock, argv[optind]); fd = open(argv[optind], O_RDWR); if (fd < 0) { perror("open"); return 1; } ret = ioctl(fd, MEMSETBADBLOCK, &badblock); if (ret) perror("ioctl"); close(fd); return ret; } return 0; } static const __maybe_unused char cmd_nand_help[] = "Usage: nand [OPTION]...\n" "nand related commands\n" " -a register a bad block aware device ontop of a normal nand device\n" " -d deregister a bad block aware device\n" " -b mark block at offset ofs as bad\n"; BAREBOX_CMD_START(nand) .cmd = do_nand, .usage = "NAND specific handling", BAREBOX_CMD_HELP(cmd_nand_help) BAREBOX_CMD_END