[J-u-boot.git] / cmd / onenand.c

/*
 *  U-Boot command for OneNAND support
 *
 *  Copyright (C) 2005-2008 Samsung Electronics
 *  Kyungmin Park <[email protected]>
 *
 * 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.
 */

#include <command.h>
#include <malloc.h>
#include <linux/printk.h>

#include <linux/compat.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>

#include <asm/io.h>

static struct mtd_info *mtd;

static loff_t next_ofs;
static loff_t skip_ofs;

static int arg_off_size_onenand(int argc, char *const argv[], ulong *off,
				size_t *size)
{
	if (argc >= 1) {
		if (!(str2long(argv[0], off))) {
			printf("'%s' is not a number\n", argv[0]);
			return -1;
		}
	} else {
		*off = 0;
	}

	if (argc >= 2) {
		if (!(str2long(argv[1], (ulong *)size))) {
			printf("'%s' is not a number\n", argv[1]);
			return -1;
		}
	} else {
		*size = mtd->size - *off;
	}

	if ((*off + *size) > mtd->size) {
		printf("total chip size (0x%llx) exceeded!\n", mtd->size);
		return -1;
	}

	if (*size == mtd->size)
		puts("whole chip\n");
	else
		printf("offset 0x%lx, size 0x%zx\n", *off, *size);

	return 0;
}

static int onenand_block_read(loff_t from, size_t len,
			      size_t *retlen, u_char *buf, int oob)
{
	struct onenand_chip *this = mtd->priv;
	int blocks = (int) len >> this->erase_shift;
	int blocksize = (1 << this->erase_shift);
	loff_t ofs = from;
	struct mtd_oob_ops ops = {
		.retlen		= 0,
	};
	int ret;

	if (oob)
		ops.ooblen = blocksize;
	else
		ops.len = blocksize;

	while (blocks) {
		ret = mtd_block_isbad(mtd, ofs);
		if (ret) {
			printk("Bad blocks %d at 0x%x\n",
			       (u32)(ofs >> this->erase_shift), (u32)ofs);
			ofs += blocksize;
			continue;
		}

		if (oob)
			ops.oobbuf = buf;
		else
			ops.datbuf = buf;

		ops.retlen = 0;
		ret = mtd_read_oob(mtd, ofs, &ops);
		if (ret) {
			printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
			ofs += blocksize;
			continue;
		}
		ofs += blocksize;
		buf += blocksize;
		blocks--;
		*retlen += ops.retlen;
	}

	return 0;
}

static int onenand_write_oneblock_withoob(loff_t to, const u_char * buf,
					  size_t *retlen)
{
	struct mtd_oob_ops ops = {
		.len = mtd->writesize,
		.ooblen = mtd->oobsize,
		.mode = MTD_OPS_AUTO_OOB,
	};
	int page, ret = 0;
	for (page = 0; page < (mtd->erasesize / mtd->writesize); page ++) {
		ops.datbuf = (u_char *)buf;
		buf += mtd->writesize;
		ops.oobbuf = (u_char *)buf;
		buf += mtd->oobsize;
		ret = mtd_write_oob(mtd, to, &ops);
		if (ret)
			break;
		to += mtd->writesize;
	}

	*retlen = (ret) ? 0 : mtd->erasesize;
	return ret;
}

static int onenand_block_write(loff_t to, size_t len,
			       size_t *retlen, const u_char * buf, int withoob)
{
	struct onenand_chip *this = mtd->priv;
	int blocks = len >> this->erase_shift;
	int blocksize = (1 << this->erase_shift);
	loff_t ofs;
	size_t _retlen = 0;
	int ret;

	if ((to & (mtd->writesize - 1)) != 0) {
		printf("Attempt to write non block-aligned data\n");
		*retlen = 0;
		return 1;
	}

	if (to == next_ofs) {
		next_ofs = to + len;
		to += skip_ofs;
	} else {
		next_ofs = to + len;
		skip_ofs = 0;
	}
	ofs = to;

	while (blocks) {
		ret = mtd_block_isbad(mtd, ofs);
		if (ret) {
			printk("Bad blocks %d at 0x%x\n",
			       (u32)(ofs >> this->erase_shift), (u32)ofs);
			skip_ofs += blocksize;
			goto next;
		}

		if (!withoob)
			ret = mtd_write(mtd, ofs, blocksize, &_retlen, buf);
		else
			ret = onenand_write_oneblock_withoob(ofs, buf, &_retlen);
		if (ret) {
			printk("Write failed 0x%x, %d", (u32)ofs, ret);
			skip_ofs += blocksize;
			goto next;
		}

		buf += blocksize;
		blocks--;
		*retlen += _retlen;
next:
		ofs += blocksize;
	}

	return 0;
}

static int onenand_block_erase(u32 start, u32 size, int force)
{
	struct onenand_chip *this = mtd->priv;
	struct erase_info instr = {};
	loff_t ofs;
	int ret;
	int blocksize = 1 << this->erase_shift;

	for (ofs = start; ofs < (start + size); ofs += blocksize) {
		ret = mtd_block_isbad(mtd, ofs);
		if (ret && !force) {
			printf("Skip erase bad block %d at 0x%x\n",
			       (u32)(ofs >> this->erase_shift), (u32)ofs);
			continue;
		}

		instr.addr = ofs;
		instr.len = blocksize;
		instr.priv = force;
		instr.mtd = mtd;
		ret = mtd_erase(mtd, &instr);
		if (ret) {
			printf("erase failed block %d at 0x%x\n",
			       (u32)(ofs >> this->erase_shift), (u32)ofs);
			continue;
		}
	}

	return 0;
}

static int onenand_block_test(u32 start, u32 size)
{
	struct onenand_chip *this = mtd->priv;
	struct erase_info instr = {};

	int blocks;
	loff_t ofs;
	int blocksize = 1 << this->erase_shift;
	int start_block, end_block;
	size_t retlen;
	u_char *buf;
	u_char *verify_buf;
	int ret;

	buf = malloc(blocksize);
	if (!buf) {
		printf("Not enough malloc space available!\n");
		return -1;
	}

	verify_buf = malloc(blocksize);
	if (!verify_buf) {
		printf("Not enough malloc space available!\n");
		return -1;
	}

	start_block = start >> this->erase_shift;
	end_block = (start + size) >> this->erase_shift;

	/* Protect boot-loader from badblock testing */
	if (start_block < 2)
		start_block = 2;

	if (end_block > (mtd->size >> this->erase_shift))
		end_block = mtd->size >> this->erase_shift;

	blocks = start_block;
	ofs = start;
	while (blocks < end_block) {
		printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs);

		ret = mtd_block_isbad(mtd, ofs);
		if (ret) {
			printf("Skip erase bad block %d at 0x%x\n",
			       (u32)(ofs >> this->erase_shift), (u32)ofs);
			goto next;
		}

		instr.addr = ofs;
		instr.len = blocksize;
		ret = mtd_erase(mtd, &instr);
		if (ret) {
			printk("Erase failed 0x%x, %d\n", (u32)ofs, ret);
			goto next;
		}

		ret = mtd_write(mtd, ofs, blocksize, &retlen, buf);
		if (ret) {
			printk("Write failed 0x%x, %d\n", (u32)ofs, ret);
			goto next;
		}

		ret = mtd_read(mtd, ofs, blocksize, &retlen, verify_buf);
		if (ret) {
			printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
			goto next;
		}

		if (memcmp(buf, verify_buf, blocksize))
			printk("\nRead/Write test failed at 0x%x\n", (u32)ofs);

next:
		ofs += blocksize;
		blocks++;
	}
	printf("...Done\n");

	free(buf);
	free(verify_buf);

	return 0;
}

static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
{
	int i;
	u_char *datbuf, *oobbuf, *p;
	struct mtd_oob_ops ops;
	loff_t addr;

	datbuf = malloc(mtd->writesize + mtd->oobsize);
	oobbuf = malloc(mtd->oobsize);
	if (!datbuf || !oobbuf) {
		puts("No memory for page buffer\n");
		return 1;
	}
	off &= ~(mtd->writesize - 1);
	addr = (loff_t) off;
	memset(&ops, 0, sizeof(ops));
	ops.datbuf = datbuf;
	ops.oobbuf = oobbuf;
	ops.len = mtd->writesize;
	ops.ooblen = mtd->oobsize;
	ops.retlen = 0;
	i = mtd_read_oob(mtd, addr, &ops);
	if (i < 0) {
		printf("Error (%d) reading page %08lx\n", i, off);
		free(datbuf);
		free(oobbuf);
		return 1;
	}
	printf("Page %08lx dump:\n", off);
	i = mtd->writesize >> 4;
	p = datbuf;

	while (i--) {
		if (!only_oob)
			printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
			       "  %02x %02x %02x %02x %02x %02x %02x %02x\n",
			       p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
			       p[8], p[9], p[10], p[11], p[12], p[13], p[14],
			       p[15]);
		p += 16;
	}
	puts("OOB:\n");
	i = mtd->oobsize >> 3;
	p = oobbuf;

	while (i--) {
		printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
		       p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
		p += 8;
	}
	free(datbuf);
	free(oobbuf);

	return 0;
}

static int do_onenand_info(struct cmd_tbl *cmdtp, int flag, int argc,
			   char *const argv[])
{
	printf("%s\n", mtd->name);
	return 0;
}

static int do_onenand_bad(struct cmd_tbl *cmdtp, int flag, int argc,
			  char *const argv[])
{
	ulong ofs;

	mtd = &onenand_mtd;
	/* Currently only one OneNAND device is supported */
	printf("\nDevice %d bad blocks:\n", 0);
	for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) {
		if (mtd_block_isbad(mtd, ofs))
			printf("  %08x\n", (u32)ofs);
	}

	return 0;
}

static int do_onenand_read(struct cmd_tbl *cmdtp, int flag, int argc,
			   char *const argv[])
{
	char *s;
	int oob = 0;
	ulong addr, ofs;
	size_t len;
	int ret = 0;
	size_t retlen = 0;

	if (argc < 3)
		return CMD_RET_USAGE;

	s = strchr(argv[0], '.');
	if ((s != NULL) && (!strcmp(s, ".oob")))
		oob = 1;

	addr = (ulong)hextoul(argv[1], NULL);

	printf("\nOneNAND read: ");
	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
		return 1;

	ret = onenand_block_read(ofs, len, &retlen, (u8 *)addr, oob);

	printf(" %zu bytes read: %s\n", retlen, ret ? "ERROR" : "OK");

	return ret == 0 ? 0 : 1;
}

static int do_onenand_write(struct cmd_tbl *cmdtp, int flag, int argc,
			    char *const argv[])
{
	ulong addr, ofs;
	size_t len;
	int ret = 0, withoob = 0;
	size_t retlen = 0;

	if (argc < 3)
		return CMD_RET_USAGE;

	if (strncmp(argv[0] + 6, "yaffs", 5) == 0)
		withoob = 1;

	addr = (ulong)hextoul(argv[1], NULL);

	printf("\nOneNAND write: ");
	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
		return 1;

	ret = onenand_block_write(ofs, len, &retlen, (u8 *)addr, withoob);

	printf(" %zu bytes written: %s\n", retlen, ret ? "ERROR" : "OK");

	return ret == 0 ? 0 : 1;
}

static int do_onenand_erase(struct cmd_tbl *cmdtp, int flag, int argc,
			    char *const argv[])
{
	ulong ofs;
	int ret = 0;
	size_t len;
	int force;

	/*
	 * Syntax is:
	 *   0       1     2       3    4
	 *   onenand erase [force] [off size]
	 */
	argc--;
	argv++;
	if (argc)
	{
		if (!strcmp("force", argv[0]))
		{
			force = 1;
			argc--;
			argv++;
		}
	}
	printf("\nOneNAND erase: ");

	/* skip first two or three arguments, look for offset and size */
	if (arg_off_size_onenand(argc, argv, &ofs, &len) != 0)
		return 1;

	ret = onenand_block_erase(ofs, len, force);

	printf("%s\n", ret ? "ERROR" : "OK");

	return ret == 0 ? 0 : 1;
}

static int do_onenand_test(struct cmd_tbl *cmdtp, int flag, int argc,
			   char *const argv[])
{
	ulong ofs;
	int ret = 0;
	size_t len;

	/*
	 * Syntax is:
	 *   0       1     2       3    4
	 *   onenand test [force] [off size]
	 */

	printf("\nOneNAND test: ");

	/* skip first two or three arguments, look for offset and size */
	if (arg_off_size_onenand(argc - 1, argv + 1, &ofs, &len) != 0)
		return 1;

	ret = onenand_block_test(ofs, len);

	printf("%s\n", ret ? "ERROR" : "OK");

	return ret == 0 ? 0 : 1;
}

static int do_onenand_dump(struct cmd_tbl *cmdtp, int flag, int argc,
			   char *const argv[])
{
	ulong ofs;
	int ret = 0;
	char *s;

	if (argc < 2)
		return CMD_RET_USAGE;

	s = strchr(argv[0], '.');
	ofs = (int)hextoul(argv[1], NULL);

	if (s != NULL && strcmp(s, ".oob") == 0)
		ret = onenand_dump(mtd, ofs, 1);
	else
		ret = onenand_dump(mtd, ofs, 0);

	return ret == 0 ? 1 : 0;
}

static int do_onenand_markbad(struct cmd_tbl *cmdtp, int flag, int argc,
			      char *const argv[])
{
	int ret = 0;
	ulong addr;

	argc -= 2;
	argv += 2;

	if (argc <= 0)
		return CMD_RET_USAGE;

	while (argc > 0) {
		addr = hextoul(*argv, NULL);

		if (mtd_block_markbad(mtd, addr)) {
			printf("block 0x%08lx NOT marked "
				"as bad! ERROR %d\n",
				addr, ret);
			ret = 1;
		} else {
			printf("block 0x%08lx successfully "
				"marked as bad\n",
				addr);
		}
		--argc;
		++argv;
	}
	return ret;
}

static struct cmd_tbl cmd_onenand_sub[] = {
	U_BOOT_CMD_MKENT(info, 1, 0, do_onenand_info, "", ""),
	U_BOOT_CMD_MKENT(bad, 1, 0, do_onenand_bad, "", ""),
	U_BOOT_CMD_MKENT(read, 4, 0, do_onenand_read, "", ""),
	U_BOOT_CMD_MKENT(write, 4, 0, do_onenand_write, "", ""),
	U_BOOT_CMD_MKENT(write.yaffs, 4, 0, do_onenand_write, "", ""),
	U_BOOT_CMD_MKENT(erase, 3, 0, do_onenand_erase, "", ""),
	U_BOOT_CMD_MKENT(test, 3, 0, do_onenand_test, "", ""),
	U_BOOT_CMD_MKENT(dump, 2, 0, do_onenand_dump, "", ""),
	U_BOOT_CMD_MKENT(markbad, CONFIG_SYS_MAXARGS, 0, do_onenand_markbad, "", ""),
};

static int do_onenand(struct cmd_tbl *cmdtp, int flag, int argc,
		      char *const argv[])
{
	struct cmd_tbl *c;

	if (argc < 2)
		return CMD_RET_USAGE;

	mtd = &onenand_mtd;

	/* Strip off leading 'onenand' command argument */
	argc--;
	argv++;

	c = find_cmd_tbl(argv[0], &cmd_onenand_sub[0], ARRAY_SIZE(cmd_onenand_sub));

	if (c)
		return c->cmd(cmdtp, flag, argc, argv);
	else
		return CMD_RET_USAGE;
}

U_BOOT_CMD(
	onenand,	CONFIG_SYS_MAXARGS,	1,	do_onenand,
	"OneNAND sub-system",
	"info - show available OneNAND devices\n"
	"onenand bad - show bad blocks\n"
	"onenand read[.oob] addr off size\n"
	"onenand write[.yaffs] addr off size\n"
	"    read/write 'size' bytes starting at offset 'off'\n"
	"    to/from memory address 'addr', skipping bad blocks.\n"
	"onenand erase [force] [off size] - erase 'size' bytes from\n"
	"onenand test [off size] - test 'size' bytes from\n"
	"    offset 'off' (entire device if not specified)\n"
	"onenand dump[.oob] off - dump page\n"
	"onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)"
);
Commit	Line	Data
d7e8ce10 KP	1	/*
	2	* U-Boot command for OneNAND support
	3	*
c438ea17	4	* Copyright (C) 2005-2008 Samsung Electronics
d7e8ce10 KP	5	* Kyungmin Park <[email protected]>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
d7e8ce10	12	#include <command.h>
c438ea17	13	#include <malloc.h>
1e94b46f	14	#include <linux/printk.h>
d7e8ce10	15
7b15e2bb	16	#include <linux/compat.h>
d7e8ce10 KP	17	#include <linux/mtd/mtd.h>
	18	#include <linux/mtd/onenand.h>
	19
	20	#include <asm/io.h>
	21
c438ea17 SR	22	static struct mtd_info *mtd;
	23
	24	static loff_t next_ofs;
	25	static loff_t skip_ofs;
	26
09140113	27	static int arg_off_size_onenand(int argc, char const argv[], ulong off,
09c32807	28	size_t *size)
c438ea17 SR	29	{
	30	if (argc >= 1) {
	31	if (!(str2long(argv[0], off))) {
	32	printf("'%s' is not a number\n", argv[0]);
	33	return -1;
	34	}
	35	} else {
	36	*off = 0;
	37	}
	38
	39	if (argc >= 2) {
	40	if (!(str2long(argv[1], (ulong *)size))) {
	41	printf("'%s' is not a number\n", argv[1]);
	42	return -1;
	43	}
	44	} else {
	45	size = mtd->size - off;
	46	}
	47
	48	if ((off + size) > mtd->size) {
8d2effea	49	printf("total chip size (0x%llx) exceeded!\n", mtd->size);
c438ea17 SR	50	return -1;
	51	}
	52
	53	if (*size == mtd->size)
	54	puts("whole chip\n");
	55	else
6d813197	56	printf("offset 0x%lx, size 0x%zx\n", off, size);
c438ea17 SR	57
	58	return 0;
	59	}
	60
	61	static int onenand_block_read(loff_t from, size_t len,
	62	size_t retlen, u_char buf, int oob)
	63	{
	64	struct onenand_chip *this = mtd->priv;
	65	int blocks = (int) len >> this->erase_shift;
	66	int blocksize = (1 << this->erase_shift);
	67	loff_t ofs = from;
	68	struct mtd_oob_ops ops = {
	69	.retlen = 0,
	70	};
	71	int ret;
	72
	73	if (oob)
	74	ops.ooblen = blocksize;
	75	else
	76	ops.len = blocksize;
	77
	78	while (blocks) {
dfe64e2c	79	ret = mtd_block_isbad(mtd, ofs);
c438ea17 SR	80	if (ret) {
	81	printk("Bad blocks %d at 0x%x\n",
	82	(u32)(ofs >> this->erase_shift), (u32)ofs);
	83	ofs += blocksize;
	84	continue;
	85	}
	86
	87	if (oob)
	88	ops.oobbuf = buf;
	89	else
	90	ops.datbuf = buf;
	91
	92	ops.retlen = 0;
dfe64e2c	93	ret = mtd_read_oob(mtd, ofs, &ops);
c438ea17 SR	94	if (ret) {
	95	printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
	96	ofs += blocksize;
	97	continue;
	98	}
	99	ofs += blocksize;
	100	buf += blocksize;
	101	blocks--;
	102	*retlen += ops.retlen;
	103	}
	104
	105	return 0;
	106	}
	107
41c86240 LW	108	static int onenand_write_oneblock_withoob(loff_t to, const u_char * buf,
	109	size_t *retlen)
	110	{
	111	struct mtd_oob_ops ops = {
	112	.len = mtd->writesize,
	113	.ooblen = mtd->oobsize,
dfe64e2c	114	.mode = MTD_OPS_AUTO_OOB,
41c86240 LW	115	};
	116	int page, ret = 0;
	117	for (page = 0; page < (mtd->erasesize / mtd->writesize); page ++) {
	118	ops.datbuf = (u_char *)buf;
	119	buf += mtd->writesize;
	120	ops.oobbuf = (u_char *)buf;
	121	buf += mtd->oobsize;
dfe64e2c	122	ret = mtd_write_oob(mtd, to, &ops);
41c86240 LW	123	if (ret)
	124	break;
	125	to += mtd->writesize;
	126	}
	127
	128	*retlen = (ret) ? 0 : mtd->erasesize;
	129	return ret;
	130	}
	131
c438ea17	132	static int onenand_block_write(loff_t to, size_t len,
41c86240	133	size_t retlen, const u_char buf, int withoob)
c438ea17 SR	134	{
	135	struct onenand_chip *this = mtd->priv;
	136	int blocks = len >> this->erase_shift;
	137	int blocksize = (1 << this->erase_shift);
	138	loff_t ofs;
	139	size_t _retlen = 0;
	140	int ret;
	141
9c00d982 LM	142	if ((to & (mtd->writesize - 1)) != 0) {
	143	printf("Attempt to write non block-aligned data\n");
	144	*retlen = 0;
	145	return 1;
	146	}
	147
c438ea17 SR	148	if (to == next_ofs) {
	149	next_ofs = to + len;
	150	to += skip_ofs;
	151	} else {
	152	next_ofs = to + len;
	153	skip_ofs = 0;
	154	}
	155	ofs = to;
	156
	157	while (blocks) {
dfe64e2c	158	ret = mtd_block_isbad(mtd, ofs);
c438ea17 SR	159	if (ret) {
	160	printk("Bad blocks %d at 0x%x\n",
	161	(u32)(ofs >> this->erase_shift), (u32)ofs);
	162	skip_ofs += blocksize;
	163	goto next;
	164	}
	165
41c86240	166	if (!withoob)
dfe64e2c	167	ret = mtd_write(mtd, ofs, blocksize, &_retlen, buf);
41c86240 LW	168	else
41c86240 LW	169	ret = onenand_write_oneblock_withoob(ofs, buf, &_retlen);
c438ea17 SR	170	if (ret) {
	171	printk("Write failed 0x%x, %d", (u32)ofs, ret);
	172	skip_ofs += blocksize;
	173	goto next;
	174	}
	175
	176	buf += blocksize;
	177	blocks--;
	178	*retlen += _retlen;
	179	next:
	180	ofs += blocksize;
	181	}
	182
	183	return 0;
	184	}
	185
	186	static int onenand_block_erase(u32 start, u32 size, int force)
	187	{
	188	struct onenand_chip *this = mtd->priv;
0d1ecc99	189	struct erase_info instr = {};
c438ea17 SR	190	loff_t ofs;
	191	int ret;
	192	int blocksize = 1 << this->erase_shift;
	193
	194	for (ofs = start; ofs < (start + size); ofs += blocksize) {
dfe64e2c	195	ret = mtd_block_isbad(mtd, ofs);
c438ea17 SR	196	if (ret && !force) {
	197	printf("Skip erase bad block %d at 0x%x\n",
	198	(u32)(ofs >> this->erase_shift), (u32)ofs);
	199	continue;
	200	}
	201
	202	instr.addr = ofs;
	203	instr.len = blocksize;
	204	instr.priv = force;
	205	instr.mtd = mtd;
dfe64e2c	206	ret = mtd_erase(mtd, &instr);
c438ea17 SR	207	if (ret) {
	208	printf("erase failed block %d at 0x%x\n",
	209	(u32)(ofs >> this->erase_shift), (u32)ofs);
	210	continue;
	211	}
	212	}
	213
	214	return 0;
	215	}
	216
	217	static int onenand_block_test(u32 start, u32 size)
	218	{
	219	struct onenand_chip *this = mtd->priv;
0d1ecc99	220	struct erase_info instr = {};
c438ea17 SR	221
	222	int blocks;
	223	loff_t ofs;
	224	int blocksize = 1 << this->erase_shift;
	225	int start_block, end_block;
	226	size_t retlen;
	227	u_char *buf;
	228	u_char *verify_buf;
	229	int ret;
	230
	231	buf = malloc(blocksize);
	232	if (!buf) {
	233	printf("Not enough malloc space available!\n");
	234	return -1;
	235	}
	236
	237	verify_buf = malloc(blocksize);
	238	if (!verify_buf) {
	239	printf("Not enough malloc space available!\n");
	240	return -1;
	241	}
	242
	243	start_block = start >> this->erase_shift;
	244	end_block = (start + size) >> this->erase_shift;
	245
	246	/* Protect boot-loader from badblock testing */
	247	if (start_block < 2)
	248	start_block = 2;
	249
	250	if (end_block > (mtd->size >> this->erase_shift))
	251	end_block = mtd->size >> this->erase_shift;
	252
	253	blocks = start_block;
	254	ofs = start;
	255	while (blocks < end_block) {
	256	printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs);
	257
dfe64e2c	258	ret = mtd_block_isbad(mtd, ofs);
c438ea17 SR	259	if (ret) {
	260	printf("Skip erase bad block %d at 0x%x\n",
	261	(u32)(ofs >> this->erase_shift), (u32)ofs);
	262	goto next;
	263	}
	264
	265	instr.addr = ofs;
	266	instr.len = blocksize;
dfe64e2c	267	ret = mtd_erase(mtd, &instr);
c438ea17 SR	268	if (ret) {
	269	printk("Erase failed 0x%x, %d\n", (u32)ofs, ret);
	270	goto next;
	271	}
	272
dfe64e2c	273	ret = mtd_write(mtd, ofs, blocksize, &retlen, buf);
c438ea17 SR	274	if (ret) {
	275	printk("Write failed 0x%x, %d\n", (u32)ofs, ret);
	276	goto next;
	277	}
	278
dfe64e2c	279	ret = mtd_read(mtd, ofs, blocksize, &retlen, verify_buf);
c438ea17 SR	280	if (ret) {
	281	printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
	282	goto next;
	283	}
	284
	285	if (memcmp(buf, verify_buf, blocksize))
	286	printk("\nRead/Write test failed at 0x%x\n", (u32)ofs);
	287
	288	next:
	289	ofs += blocksize;
	290	blocks++;
	291	}
	292	printf("...Done\n");
	293
	294	free(buf);
	295	free(verify_buf);
	296
	297	return 0;
	298	}
	299
	300	static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
	301	{
	302	int i;
	303	u_char datbuf, oobbuf, *p;
	304	struct mtd_oob_ops ops;
	305	loff_t addr;
	306
	307	datbuf = malloc(mtd->writesize + mtd->oobsize);
	308	oobbuf = malloc(mtd->oobsize);
	309	if (!datbuf \|\| !oobbuf) {
	310	puts("No memory for page buffer\n");
	311	return 1;
	312	}
	313	off &= ~(mtd->writesize - 1);
	314	addr = (loff_t) off;
	315	memset(&ops, 0, sizeof(ops));
	316	ops.datbuf = datbuf;
a430b137	317	ops.oobbuf = oobbuf;
c438ea17 SR	318	ops.len = mtd->writesize;
	319	ops.ooblen = mtd->oobsize;
	320	ops.retlen = 0;
dfe64e2c	321	i = mtd_read_oob(mtd, addr, &ops);
c438ea17 SR	322	if (i < 0) {
	323	printf("Error (%d) reading page %08lx\n", i, off);
	324	free(datbuf);
	325	free(oobbuf);
	326	return 1;
	327	}
	328	printf("Page %08lx dump:\n", off);
	329	i = mtd->writesize >> 4;
	330	p = datbuf;
	331
	332	while (i--) {
	333	if (!only_oob)
	334	printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
	335	" %02x %02x %02x %02x %02x %02x %02x %02x\n",
	336	p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
	337	p[8], p[9], p[10], p[11], p[12], p[13], p[14],
	338	p[15]);
	339	p += 16;
	340	}
	341	puts("OOB:\n");
	342	i = mtd->oobsize >> 3;
a430b137 LW	343	p = oobbuf;
a430b137 LW	344
c438ea17 SR	345	while (i--) {
	346	printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
	347	p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
	348	p += 8;
	349	}
	350	free(datbuf);
	351	free(oobbuf);
	352
	353	return 0;
	354	}
d7e8ce10	355
09140113 SG	356	static int do_onenand_info(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	357	char *const argv[])
d7e8ce10	358	{
8cd85282 FM	359	printf("%s\n", mtd->name);
	360	return 0;
	361	}
	362
09140113 SG	363	static int do_onenand_bad(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	364	char *const argv[])
8cd85282 FM	365	{
	366	ulong ofs;
	367
	368	mtd = &onenand_mtd;
	369	/* Currently only one OneNAND device is supported */
	370	printf("\nDevice %d bad blocks:\n", 0);
	371	for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) {
dfe64e2c	372	if (mtd_block_isbad(mtd, ofs))
8cd85282 FM	373	printf(" %08x\n", (u32)ofs);
	374	}
	375
	376	return 0;
	377	}
	378
09140113 SG	379	static int do_onenand_read(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	380	char *const argv[])
8cd85282 FM	381	{
	382	char *s;
	383	int oob = 0;
c438ea17	384	ulong addr, ofs;
8cd85282	385	size_t len;
8360b66b	386	int ret = 0;
8cd85282	387	size_t retlen = 0;
c438ea17	388
8cd85282	389	if (argc < 3)
4c12eeb8	390	return CMD_RET_USAGE;
c438ea17	391
8cd85282 FM	392	s = strchr(argv[0], '.');
	393	if ((s != NULL) && (!strcmp(s, ".oob")))
	394	oob = 1;
d7e8ce10	395
7e5f460e	396	addr = (ulong)hextoul(argv[1], NULL);
d7e8ce10	397
8cd85282	398	printf("\nOneNAND read: ");
09c32807	399	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
8cd85282	400	return 1;
c438ea17	401
8cd85282	402	ret = onenand_block_read(ofs, len, &retlen, (u8 *)addr, oob);
c438ea17	403
6d813197	404	printf(" %zu bytes read: %s\n", retlen, ret ? "ERROR" : "OK");
d7e8ce10	405
8cd85282 FM	406	return ret == 0 ? 0 : 1;
8cd85282 FM	407	}
a9da2b41	408
09140113 SG	409	static int do_onenand_write(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	410	char *const argv[])
8cd85282 FM	411	{
	412	ulong addr, ofs;
	413	size_t len;
41c86240	414	int ret = 0, withoob = 0;
8cd85282	415	size_t retlen = 0;
d7e8ce10	416
8cd85282	417	if (argc < 3)
4c12eeb8	418	return CMD_RET_USAGE;
d7e8ce10	419
41c86240 LW	420	if (strncmp(argv[0] + 6, "yaffs", 5) == 0)
	421	withoob = 1;
	422
7e5f460e	423	addr = (ulong)hextoul(argv[1], NULL);
8cd85282 FM	424
8cd85282 FM	425	printf("\nOneNAND write: ");
09c32807	426	if (arg_off_size_onenand(argc - 2, argv + 2, &ofs, &len) != 0)
8cd85282	427	return 1;
d7e8ce10	428
41c86240	429	ret = onenand_block_write(ofs, len, &retlen, (u8 *)addr, withoob);
d7e8ce10	430
6d813197	431	printf(" %zu bytes written: %s\n", retlen, ret ? "ERROR" : "OK");
c438ea17	432
8cd85282 FM	433	return ret == 0 ? 0 : 1;
	434	}
	435
09140113 SG	436	static int do_onenand_erase(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	437	char *const argv[])
8cd85282 FM	438	{
	439	ulong ofs;
	440	int ret = 0;
	441	size_t len;
	442	int force;
	443
	444	/*
	445	* Syntax is:
	446	* 0 1 2 3 4
	447	* onenand erase [force] [off size]
	448	*/
	449	argc--;
	450	argv++;
	451	if (argc)
	452	{
	453	if (!strcmp("force", argv[0]))
	454	{
	455	force = 1;
	456	argc--;
	457	argv++;
d7e8ce10	458	}
8cd85282 FM	459	}
8cd85282 FM	460	printf("\nOneNAND erase: ");
d7e8ce10	461
8cd85282	462	/* skip first two or three arguments, look for offset and size */
09c32807	463	if (arg_off_size_onenand(argc, argv, &ofs, &len) != 0)
8cd85282	464	return 1;
bfd7f386	465
8cd85282	466	ret = onenand_block_erase(ofs, len, force);
bfd7f386	467
8cd85282	468	printf("%s\n", ret ? "ERROR" : "OK");
d7e8ce10	469
8cd85282 FM	470	return ret == 0 ? 0 : 1;
8cd85282 FM	471	}
d7e8ce10	472
09140113 SG	473	static int do_onenand_test(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	474	char *const argv[])
8cd85282 FM	475	{
	476	ulong ofs;
	477	int ret = 0;
	478	size_t len;
d7e8ce10	479
8cd85282 FM	480	/*
	481	* Syntax is:
	482	* 0 1 2 3 4
	483	* onenand test [force] [off size]
	484	*/
d7e8ce10	485
8cd85282	486	printf("\nOneNAND test: ");
d7e8ce10	487
8cd85282	488	/* skip first two or three arguments, look for offset and size */
09c32807	489	if (arg_off_size_onenand(argc - 1, argv + 1, &ofs, &len) != 0)
8cd85282	490	return 1;
d7e8ce10	491
8cd85282	492	ret = onenand_block_test(ofs, len);
d7e8ce10	493
8cd85282	494	printf("%s\n", ret ? "ERROR" : "OK");
d7e8ce10	495
8cd85282 FM	496	return ret == 0 ? 0 : 1;
8cd85282 FM	497	}
bfd7f386	498
09140113 SG	499	static int do_onenand_dump(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	500	char *const argv[])
8cd85282 FM	501	{
	502	ulong ofs;
	503	int ret = 0;
	504	char *s;
d7e8ce10	505
8cd85282	506	if (argc < 2)
4c12eeb8	507	return CMD_RET_USAGE;
8cd85282 FM	508
8cd85282 FM	509	s = strchr(argv[0], '.');
7e5f460e	510	ofs = (int)hextoul(argv[1], NULL);
8cd85282 FM	511
	512	if (s != NULL && strcmp(s, ".oob") == 0)
	513	ret = onenand_dump(mtd, ofs, 1);
	514	else
	515	ret = onenand_dump(mtd, ofs, 0);
d7e8ce10	516
8cd85282 FM	517	return ret == 0 ? 1 : 0;
	518	}
	519
09140113 SG	520	static int do_onenand_markbad(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	521	char *const argv[])
8cd85282 FM	522	{
	523	int ret = 0;
	524	ulong addr;
	525
	526	argc -= 2;
	527	argv += 2;
	528
	529	if (argc <= 0)
4c12eeb8	530	return CMD_RET_USAGE;
d7e8ce10	531
8cd85282	532	while (argc > 0) {
7e5f460e	533	addr = hextoul(*argv, NULL);
8cd85282	534
dfe64e2c	535	if (mtd_block_markbad(mtd, addr)) {
8cd85282 FM	536	printf("block 0x%08lx NOT marked "
	537	"as bad! ERROR %d\n",
	538	addr, ret);
	539	ret = 1;
	540	} else {
	541	printf("block 0x%08lx successfully "
	542	"marked as bad\n",
	543	addr);
	544	}
	545	--argc;
	546	++argv;
	547	}
	548	return ret;
	549	}
	550
09140113	551	static struct cmd_tbl cmd_onenand_sub[] = {
8cd85282 FM	552	U_BOOT_CMD_MKENT(info, 1, 0, do_onenand_info, "", ""),
	553	U_BOOT_CMD_MKENT(bad, 1, 0, do_onenand_bad, "", ""),
	554	U_BOOT_CMD_MKENT(read, 4, 0, do_onenand_read, "", ""),
	555	U_BOOT_CMD_MKENT(write, 4, 0, do_onenand_write, "", ""),
41c86240	556	U_BOOT_CMD_MKENT(write.yaffs, 4, 0, do_onenand_write, "", ""),
8cd85282 FM	557	U_BOOT_CMD_MKENT(erase, 3, 0, do_onenand_erase, "", ""),
	558	U_BOOT_CMD_MKENT(test, 3, 0, do_onenand_test, "", ""),
	559	U_BOOT_CMD_MKENT(dump, 2, 0, do_onenand_dump, "", ""),
	560	U_BOOT_CMD_MKENT(markbad, CONFIG_SYS_MAXARGS, 0, do_onenand_markbad, "", ""),
	561	};
	562
09140113 SG	563	static int do_onenand(struct cmd_tbl *cmdtp, int flag, int argc,
09140113 SG	564	char *const argv[])
8cd85282	565	{
09140113	566	struct cmd_tbl *c;
8cd85282	567
57ff9f24	568	if (argc < 2)
4c12eeb8	569	return CMD_RET_USAGE;
57ff9f24	570
8cd85282 FM	571	mtd = &onenand_mtd;
	572
	573	/* Strip off leading 'onenand' command argument */
	574	argc--;
	575	argv++;
c438ea17	576
8cd85282 FM	577	c = find_cmd_tbl(argv[0], &cmd_onenand_sub[0], ARRAY_SIZE(cmd_onenand_sub));
8cd85282 FM	578
47e26b1b WD	579	if (c)
	580	return c->cmd(cmdtp, flag, argc, argv);
	581	else
4c12eeb8	582	return CMD_RET_USAGE;
d7e8ce10 KP	583	}
	584
	585	U_BOOT_CMD(
8360b66b	586	onenand, CONFIG_SYS_MAXARGS, 1, do_onenand,
2fb2604d	587	"OneNAND sub-system",
c438ea17 SR	588	"info - show available OneNAND devices\n"
	589	"onenand bad - show bad blocks\n"
	590	"onenand read[.oob] addr off size\n"
41c86240	591	"onenand write[.yaffs] addr off size\n"
c438ea17 SR	592	" read/write 'size' bytes starting at offset 'off'\n"
	593	" to/from memory address 'addr', skipping bad blocks.\n"
	594	"onenand erase [force] [off size] - erase 'size' bytes from\n"
	595	"onenand test [off size] - test 'size' bytes from\n"
	596	" offset 'off' (entire device if not specified)\n"
	597	"onenand dump[.oob] off - dump page\n"
a89c33db	598	"onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)"
d7e8ce10	599	);