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