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f3543e6944
This is not needed and we should avoid typedefs. Use the struct instead and rename it to indicate that it really is a legacy struct. Signed-off-by: Simon Glass <sjg@chromium.org>
1144 lines
27 KiB
C
1144 lines
27 KiB
C
/*
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* Driver for NAND support, Rick Bronson
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* borrowed heavily from:
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* (c) 1999 Machine Vision Holdings, Inc.
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* (c) 1999, 2000 David Woodhouse <dwmw2@infradead.org>
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*
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* Ported 'dynenv' to 'nand env.oob' command
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* (C) 2010 Nanometrics, Inc.
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* 'dynenv' -- Dynamic environment offset in NAND OOB
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* (C) Copyright 2006-2007 OpenMoko, Inc.
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* Added 16-bit nand support
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* (C) 2004 Texas Instruments
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*
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* Copyright 2010, 2012 Freescale Semiconductor
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* The portions of this file whose copyright is held by Freescale and which
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* are not considered a derived work of GPL v2-only code may be distributed
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* and/or modified under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* The function nand_biterror() in this file is inspired from
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* mtd-utils/nand-utils/nandflipbits.c which was released under GPLv2
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* only
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*/
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#include <common.h>
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#include <bootstage.h>
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#include <image.h>
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#include <asm/cache.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/rawnand.h>
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#include <command.h>
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#include <console.h>
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#include <env.h>
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#include <watchdog.h>
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#include <malloc.h>
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#include <asm/byteorder.h>
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#include <jffs2/jffs2.h>
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#include <nand.h>
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#include "legacy-mtd-utils.h"
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#if defined(CONFIG_CMD_MTDPARTS)
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/* partition handling routines */
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int mtdparts_init(void);
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int find_dev_and_part(const char *id, struct mtd_device **dev,
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u8 *part_num, struct part_info **part);
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#endif
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#define MAX_NUM_PAGES 64
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static int nand_biterror(struct mtd_info *mtd, ulong off, int bit)
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{
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int ret = 0;
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int page = 0;
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ulong block_off;
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u_char *datbuf[MAX_NUM_PAGES]; /* Data and OOB */
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u_char data;
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int pages_per_blk = mtd->erasesize / mtd->writesize;
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struct erase_info einfo;
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if (pages_per_blk > MAX_NUM_PAGES) {
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printf("Too many pages in one erase block\n");
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return 1;
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}
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if (bit < 0 || bit > 7) {
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printf("bit position 0 to 7 is allowed\n");
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return 1;
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}
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/* Allocate memory */
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memset(datbuf, 0, sizeof(datbuf));
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for (page = 0; page < pages_per_blk ; page++) {
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datbuf[page] = malloc(mtd->writesize + mtd->oobsize);
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if (!datbuf[page]) {
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printf("No memory for page buffer\n");
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ret = -ENOMEM;
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goto free_memory;
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}
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}
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/* Align to erase block boundary */
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block_off = off & (~(mtd->erasesize - 1));
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/* Read out memory as first step */
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for (page = 0; page < pages_per_blk ; page++) {
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struct mtd_oob_ops ops;
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loff_t addr = (loff_t)block_off;
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memset(&ops, 0, sizeof(ops));
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ops.datbuf = datbuf[page];
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ops.oobbuf = datbuf[page] + mtd->writesize;
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ops.len = mtd->writesize;
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ops.ooblen = mtd->oobsize;
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ops.mode = MTD_OPS_RAW;
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ret = mtd_read_oob(mtd, addr, &ops);
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if (ret < 0) {
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printf("Error (%d) reading page %08lx\n",
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ret, block_off);
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ret = 1;
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goto free_memory;
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}
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block_off += mtd->writesize;
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}
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/* Erase the block */
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memset(&einfo, 0, sizeof(einfo));
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einfo.mtd = mtd;
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/* Align to erase block boundary */
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einfo.addr = (loff_t)(off & (~(mtd->erasesize - 1)));
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einfo.len = mtd->erasesize;
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ret = mtd_erase(mtd, &einfo);
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if (ret < 0) {
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printf("Error (%d) nand_erase_nand page %08llx\n",
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ret, einfo.addr);
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ret = 1;
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goto free_memory;
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}
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/* Twist a bit in data part */
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block_off = off & (mtd->erasesize - 1);
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data = datbuf[block_off / mtd->writesize][block_off % mtd->writesize];
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data ^= (1 << bit);
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datbuf[block_off / mtd->writesize][block_off % mtd->writesize] = data;
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printf("Flip data at 0x%lx with xor 0x%02x (bit=%d) to value=0x%02x\n",
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off, (1 << bit), bit, data);
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/* Write back twisted data and unmodified OOB */
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/* Align to erase block boundary */
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block_off = off & (~(mtd->erasesize - 1));
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for (page = 0; page < pages_per_blk; page++) {
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struct mtd_oob_ops ops;
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loff_t addr = (loff_t)block_off;
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memset(&ops, 0, sizeof(ops));
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ops.datbuf = datbuf[page];
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ops.oobbuf = datbuf[page] + mtd->writesize;
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ops.len = mtd->writesize;
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ops.ooblen = mtd->oobsize;
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ops.mode = MTD_OPS_RAW;
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ret = mtd_write_oob(mtd, addr, &ops);
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if (ret < 0) {
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printf("Error (%d) write page %08lx\n", ret, block_off);
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ret = 1;
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goto free_memory;
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}
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block_off += mtd->writesize;
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}
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free_memory:
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for (page = 0; page < pages_per_blk ; page++) {
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if (datbuf[page])
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free(datbuf[page]);
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}
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return ret;
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}
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static int nand_dump(struct mtd_info *mtd, ulong off, int only_oob,
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int repeat)
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{
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int i;
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u_char *datbuf, *oobbuf, *p;
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static loff_t last;
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int ret = 0;
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if (repeat)
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off = last + mtd->writesize;
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last = off;
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datbuf = memalign(ARCH_DMA_MINALIGN, mtd->writesize);
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if (!datbuf) {
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puts("No memory for page buffer\n");
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return 1;
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}
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oobbuf = memalign(ARCH_DMA_MINALIGN, mtd->oobsize);
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if (!oobbuf) {
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puts("No memory for page buffer\n");
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ret = 1;
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goto free_dat;
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}
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off &= ~(mtd->writesize - 1);
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loff_t addr = (loff_t) off;
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struct mtd_oob_ops ops;
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memset(&ops, 0, sizeof(ops));
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ops.datbuf = datbuf;
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ops.oobbuf = oobbuf;
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ops.len = mtd->writesize;
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ops.ooblen = mtd->oobsize;
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ops.mode = MTD_OPS_RAW;
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i = mtd_read_oob(mtd, addr, &ops);
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if (i < 0) {
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printf("Error (%d) reading page %08lx\n", i, off);
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ret = 1;
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goto free_all;
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}
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printf("Page %08lx dump:\n", off);
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if (!only_oob) {
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i = mtd->writesize >> 4;
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p = datbuf;
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while (i--) {
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printf("\t%02x %02x %02x %02x %02x %02x %02x %02x"
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" %02x %02x %02x %02x %02x %02x %02x %02x\n",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
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p[8], p[9], p[10], p[11], p[12], p[13], p[14],
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p[15]);
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p += 16;
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}
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}
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puts("OOB:\n");
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i = mtd->oobsize >> 3;
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p = oobbuf;
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while (i--) {
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printf("\t%02x %02x %02x %02x %02x %02x %02x %02x\n",
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p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
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p += 8;
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}
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free_all:
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free(oobbuf);
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free_dat:
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free(datbuf);
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return ret;
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}
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/* ------------------------------------------------------------------------- */
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static int set_dev(int dev)
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{
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struct mtd_info *mtd = get_nand_dev_by_index(dev);
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if (!mtd)
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return -ENODEV;
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if (nand_curr_device == dev)
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return 0;
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printf("Device %d: %s", dev, mtd->name);
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puts("... is now current device\n");
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nand_curr_device = dev;
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#ifdef CONFIG_SYS_NAND_SELECT_DEVICE
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board_nand_select_device(mtd_to_nand(mtd), dev);
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#endif
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return 0;
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}
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#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
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static void print_status(ulong start, ulong end, ulong erasesize, int status)
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{
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/*
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* Micron NAND flash (e.g. MT29F4G08ABADAH4) BLOCK LOCK READ STATUS is
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* not the same as others. Instead of bit 1 being lock, it is
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* #lock_tight. To make the driver support either format, ignore bit 1
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* and use only bit 0 and bit 2.
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*/
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printf("%08lx - %08lx: %08lx blocks %s%s%s\n",
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start,
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end - 1,
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(end - start) / erasesize,
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((status & NAND_LOCK_STATUS_TIGHT) ? "TIGHT " : ""),
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(!(status & NAND_LOCK_STATUS_UNLOCK) ? "LOCK " : ""),
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((status & NAND_LOCK_STATUS_UNLOCK) ? "UNLOCK " : ""));
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}
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static void do_nand_status(struct mtd_info *mtd)
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{
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ulong block_start = 0;
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ulong off;
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int last_status = -1;
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struct nand_chip *nand_chip = mtd_to_nand(mtd);
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/* check the WP bit */
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nand_chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
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printf("device is %swrite protected\n",
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(nand_chip->read_byte(mtd) & 0x80 ?
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"NOT " : ""));
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for (off = 0; off < mtd->size; off += mtd->erasesize) {
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int s = nand_get_lock_status(mtd, off);
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/* print message only if status has changed */
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if (s != last_status && off != 0) {
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print_status(block_start, off, mtd->erasesize,
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last_status);
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block_start = off;
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}
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last_status = s;
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}
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/* Print the last block info */
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print_status(block_start, off, mtd->erasesize, last_status);
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}
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#endif
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#ifdef CONFIG_ENV_OFFSET_OOB
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unsigned long nand_env_oob_offset;
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int do_nand_env_oob(struct cmd_tbl *cmdtp, int argc, char *const argv[])
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{
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int ret;
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uint32_t oob_buf[ENV_OFFSET_SIZE/sizeof(uint32_t)];
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struct mtd_info *mtd = get_nand_dev_by_index(0);
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char *cmd = argv[1];
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if (CONFIG_SYS_MAX_NAND_DEVICE == 0 || !mtd) {
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puts("no devices available\n");
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return 1;
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}
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set_dev(0);
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if (!strcmp(cmd, "get")) {
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ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
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if (ret)
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return 1;
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printf("0x%08lx\n", nand_env_oob_offset);
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} else if (!strcmp(cmd, "set")) {
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loff_t addr;
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loff_t maxsize;
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struct mtd_oob_ops ops;
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int idx = 0;
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if (argc < 3)
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goto usage;
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mtd = get_nand_dev_by_index(idx);
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/* We don't care about size, or maxsize. */
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if (mtd_arg_off(argv[2], &idx, &addr, &maxsize, &maxsize,
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MTD_DEV_TYPE_NAND, mtd->size)) {
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puts("Offset or partition name expected\n");
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return 1;
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}
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if (set_dev(idx)) {
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puts("Offset or partition name expected\n");
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return 1;
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}
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if (idx != 0) {
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puts("Partition not on first NAND device\n");
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return 1;
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}
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if (mtd->oobavail < ENV_OFFSET_SIZE) {
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printf("Insufficient available OOB bytes:\n"
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"%d OOB bytes available but %d required for "
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"env.oob support\n",
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mtd->oobavail, ENV_OFFSET_SIZE);
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return 1;
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}
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if ((addr & (mtd->erasesize - 1)) != 0) {
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printf("Environment offset must be block-aligned\n");
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return 1;
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}
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ops.datbuf = NULL;
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ops.mode = MTD_OOB_AUTO;
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ops.ooboffs = 0;
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ops.ooblen = ENV_OFFSET_SIZE;
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ops.oobbuf = (void *) oob_buf;
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oob_buf[0] = ENV_OOB_MARKER;
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oob_buf[1] = addr / mtd->erasesize;
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ret = mtd->write_oob(mtd, ENV_OFFSET_SIZE, &ops);
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if (ret) {
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printf("Error writing OOB block 0\n");
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return ret;
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}
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ret = get_nand_env_oob(mtd, &nand_env_oob_offset);
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if (ret) {
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printf("Error reading env offset in OOB\n");
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return ret;
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}
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if (addr != nand_env_oob_offset) {
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printf("Verification of env offset in OOB failed: "
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"0x%08llx expected but got 0x%08lx\n",
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(unsigned long long)addr, nand_env_oob_offset);
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return 1;
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}
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} else {
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goto usage;
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}
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return ret;
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usage:
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return CMD_RET_USAGE;
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}
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#endif
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static void nand_print_and_set_info(int idx)
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{
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struct mtd_info *mtd;
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struct nand_chip *chip;
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mtd = get_nand_dev_by_index(idx);
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if (!mtd)
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return;
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chip = mtd_to_nand(mtd);
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printf("Device %d: ", idx);
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if (chip->numchips > 1)
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printf("%dx ", chip->numchips);
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printf("%s, sector size %u KiB\n",
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mtd->name, mtd->erasesize >> 10);
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printf(" Page size %8d b\n", mtd->writesize);
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printf(" OOB size %8d b\n", mtd->oobsize);
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printf(" Erase size %8d b\n", mtd->erasesize);
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printf(" subpagesize %8d b\n", chip->subpagesize);
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printf(" options 0x%08x\n", chip->options);
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printf(" bbt options 0x%08x\n", chip->bbt_options);
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/* Set geometry info */
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env_set_hex("nand_writesize", mtd->writesize);
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env_set_hex("nand_oobsize", mtd->oobsize);
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env_set_hex("nand_erasesize", mtd->erasesize);
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}
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|
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static int raw_access(struct mtd_info *mtd, ulong addr, loff_t off,
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ulong count, int read, int no_verify)
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{
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int ret = 0;
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|
|
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while (count--) {
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/* Raw access */
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mtd_oob_ops_t ops = {
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.datbuf = (u8 *)addr,
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.oobbuf = ((u8 *)addr) + mtd->writesize,
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.len = mtd->writesize,
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.ooblen = mtd->oobsize,
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.mode = MTD_OPS_RAW
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};
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if (read) {
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ret = mtd_read_oob(mtd, off, &ops);
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} else {
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ret = mtd_write_oob(mtd, off, &ops);
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if (!ret && !no_verify)
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ret = nand_verify_page_oob(mtd, &ops, off);
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}
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|
|
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if (ret) {
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printf("%s: error at offset %llx, ret %d\n",
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__func__, (long long)off, ret);
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break;
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}
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addr += mtd->writesize + mtd->oobsize;
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off += mtd->writesize;
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}
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return ret;
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}
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|
|
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/* Adjust a chip/partition size down for bad blocks so we don't
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* read/write past the end of a chip/partition by accident.
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*/
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static void adjust_size_for_badblocks(loff_t *size, loff_t offset, int dev)
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{
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/* We grab the nand info object here fresh because this is usually
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* called after arg_off_size() which can change the value of dev.
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*/
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struct mtd_info *mtd = get_nand_dev_by_index(dev);
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loff_t maxoffset = offset + *size;
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int badblocks = 0;
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|
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/* count badblocks in NAND from offset to offset + size */
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for (; offset < maxoffset; offset += mtd->erasesize) {
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if (nand_block_isbad(mtd, offset))
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badblocks++;
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}
|
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/* adjust size if any bad blocks found */
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if (badblocks) {
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*size -= badblocks * mtd->erasesize;
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printf("size adjusted to 0x%llx (%d bad blocks)\n",
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(unsigned long long)*size, badblocks);
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}
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}
|
|
|
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static int do_nand(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
int i, ret = 0;
|
|
ulong addr;
|
|
loff_t off, size, maxsize;
|
|
char *cmd, *s;
|
|
struct mtd_info *mtd;
|
|
#ifdef CONFIG_SYS_NAND_QUIET
|
|
int quiet = CONFIG_SYS_NAND_QUIET;
|
|
#else
|
|
int quiet = 0;
|
|
#endif
|
|
const char *quiet_str = env_get("quiet");
|
|
int dev = nand_curr_device;
|
|
int repeat = flag & CMD_FLAG_REPEAT;
|
|
|
|
/* at least two arguments please */
|
|
if (argc < 2)
|
|
goto usage;
|
|
|
|
if (quiet_str)
|
|
quiet = simple_strtoul(quiet_str, NULL, 0) != 0;
|
|
|
|
cmd = argv[1];
|
|
|
|
/* Only "dump" is repeatable. */
|
|
if (repeat && strcmp(cmd, "dump"))
|
|
return 0;
|
|
|
|
if (strcmp(cmd, "info") == 0) {
|
|
|
|
putc('\n');
|
|
for (i = 0; i < CONFIG_SYS_MAX_NAND_DEVICE; i++)
|
|
nand_print_and_set_info(i);
|
|
return 0;
|
|
}
|
|
|
|
if (strcmp(cmd, "device") == 0) {
|
|
if (argc < 3) {
|
|
putc('\n');
|
|
if (dev < 0 || dev >= CONFIG_SYS_MAX_NAND_DEVICE)
|
|
puts("no devices available\n");
|
|
else
|
|
nand_print_and_set_info(dev);
|
|
return 0;
|
|
}
|
|
|
|
dev = (int)dectoul(argv[2], NULL);
|
|
set_dev(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_ENV_OFFSET_OOB
|
|
/* this command operates only on the first nand device */
|
|
if (strcmp(cmd, "env.oob") == 0)
|
|
return do_nand_env_oob(cmdtp, argc - 1, argv + 1);
|
|
#endif
|
|
|
|
/* The following commands operate on the current device, unless
|
|
* overridden by a partition specifier. Note that if somehow the
|
|
* current device is invalid, it will have to be changed to a valid
|
|
* one before these commands can run, even if a partition specifier
|
|
* for another device is to be used.
|
|
*/
|
|
mtd = get_nand_dev_by_index(dev);
|
|
if (!mtd) {
|
|
puts("\nno devices available\n");
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(cmd, "bad") == 0) {
|
|
printf("\nDevice %d bad blocks:\n", dev);
|
|
for (off = 0; off < mtd->size; off += mtd->erasesize)
|
|
if (nand_block_isbad(mtd, off))
|
|
printf(" %08llx\n", (unsigned long long)off);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Syntax is:
|
|
* 0 1 2 3 4
|
|
* nand erase [clean] [off size]
|
|
*/
|
|
if (strncmp(cmd, "erase", 5) == 0 || strncmp(cmd, "scrub", 5) == 0) {
|
|
nand_erase_options_t opts;
|
|
/* "clean" at index 2 means request to write cleanmarker */
|
|
int clean = argc > 2 && !strcmp("clean", argv[2]);
|
|
int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
|
|
int o = (clean || scrub_yes) ? 3 : 2;
|
|
int scrub = !strncmp(cmd, "scrub", 5);
|
|
int spread = 0;
|
|
int args = 2;
|
|
const char *scrub_warn =
|
|
"Warning: "
|
|
"scrub option will erase all factory set bad blocks!\n"
|
|
" "
|
|
"There is no reliable way to recover them.\n"
|
|
" "
|
|
"Use this command only for testing purposes if you\n"
|
|
" "
|
|
"are sure of what you are doing!\n"
|
|
"\nReally scrub this NAND flash? <y/N>\n";
|
|
|
|
if (cmd[5] != 0) {
|
|
if (!strcmp(&cmd[5], ".spread")) {
|
|
spread = 1;
|
|
} else if (!strcmp(&cmd[5], ".part")) {
|
|
args = 1;
|
|
} else if (!strcmp(&cmd[5], ".chip")) {
|
|
args = 0;
|
|
} else {
|
|
goto usage;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Don't allow missing arguments to cause full chip/partition
|
|
* erases -- easy to do accidentally, e.g. with a misspelled
|
|
* variable name.
|
|
*/
|
|
if (argc != o + args)
|
|
goto usage;
|
|
|
|
printf("\nNAND %s: ", cmd);
|
|
/* skip first two or three arguments, look for offset and size */
|
|
if (mtd_arg_off_size(argc - o, argv + o, &dev, &off, &size,
|
|
&maxsize, MTD_DEV_TYPE_NAND,
|
|
mtd->size) != 0)
|
|
return 1;
|
|
|
|
if (set_dev(dev))
|
|
return 1;
|
|
|
|
mtd = get_nand_dev_by_index(dev);
|
|
|
|
memset(&opts, 0, sizeof(opts));
|
|
opts.offset = off;
|
|
opts.length = size;
|
|
opts.jffs2 = clean;
|
|
opts.quiet = quiet;
|
|
opts.spread = spread;
|
|
|
|
if (scrub) {
|
|
if (scrub_yes) {
|
|
opts.scrub = 1;
|
|
} else {
|
|
puts(scrub_warn);
|
|
if (confirm_yesno()) {
|
|
opts.scrub = 1;
|
|
} else {
|
|
puts("scrub aborted\n");
|
|
return 1;
|
|
}
|
|
}
|
|
}
|
|
ret = nand_erase_opts(mtd, &opts);
|
|
printf("%s\n", ret ? "ERROR" : "OK");
|
|
|
|
return ret == 0 ? 0 : 1;
|
|
}
|
|
|
|
if (strncmp(cmd, "dump", 4) == 0) {
|
|
if (argc < 3)
|
|
goto usage;
|
|
|
|
off = (int)hextoul(argv[2], NULL);
|
|
ret = nand_dump(mtd, off, !strcmp(&cmd[4], ".oob"), repeat);
|
|
|
|
return ret == 0 ? 1 : 0;
|
|
}
|
|
|
|
if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
|
|
size_t rwsize;
|
|
ulong pagecount = 1;
|
|
int read;
|
|
int raw = 0;
|
|
int no_verify = 0;
|
|
|
|
if (argc < 4)
|
|
goto usage;
|
|
|
|
addr = (ulong)hextoul(argv[2], NULL);
|
|
|
|
read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
|
|
printf("\nNAND %s: ", read ? "read" : "write");
|
|
|
|
s = strchr(cmd, '.');
|
|
|
|
if (s && !strncmp(s, ".raw", 4)) {
|
|
raw = 1;
|
|
|
|
if (!strcmp(s, ".raw.noverify"))
|
|
no_verify = 1;
|
|
|
|
if (mtd_arg_off(argv[3], &dev, &off, &size, &maxsize,
|
|
MTD_DEV_TYPE_NAND,
|
|
mtd->size))
|
|
return 1;
|
|
|
|
if (set_dev(dev))
|
|
return 1;
|
|
|
|
mtd = get_nand_dev_by_index(dev);
|
|
|
|
if (argc > 4 && !str2long(argv[4], &pagecount)) {
|
|
printf("'%s' is not a number\n", argv[4]);
|
|
return 1;
|
|
}
|
|
|
|
if (pagecount * mtd->writesize > size) {
|
|
puts("Size exceeds partition or device limit\n");
|
|
return -1;
|
|
}
|
|
|
|
rwsize = pagecount * (mtd->writesize + mtd->oobsize);
|
|
} else {
|
|
if (mtd_arg_off_size(argc - 3, argv + 3, &dev, &off,
|
|
&size, &maxsize,
|
|
MTD_DEV_TYPE_NAND,
|
|
mtd->size) != 0)
|
|
return 1;
|
|
|
|
if (set_dev(dev))
|
|
return 1;
|
|
|
|
/* size is unspecified */
|
|
if (argc < 5)
|
|
adjust_size_for_badblocks(&size, off, dev);
|
|
rwsize = size;
|
|
}
|
|
|
|
mtd = get_nand_dev_by_index(dev);
|
|
|
|
if (!s || !strcmp(s, ".jffs2") ||
|
|
!strcmp(s, ".e") || !strcmp(s, ".i")) {
|
|
if (read)
|
|
ret = nand_read_skip_bad(mtd, off, &rwsize,
|
|
NULL, maxsize,
|
|
(u_char *)addr);
|
|
else
|
|
ret = nand_write_skip_bad(mtd, off, &rwsize,
|
|
NULL, maxsize,
|
|
(u_char *)addr,
|
|
WITH_WR_VERIFY);
|
|
#ifdef CONFIG_CMD_NAND_TRIMFFS
|
|
} else if (!strcmp(s, ".trimffs")) {
|
|
if (read) {
|
|
printf("Unknown nand command suffix '%s'\n", s);
|
|
return 1;
|
|
}
|
|
ret = nand_write_skip_bad(mtd, off, &rwsize, NULL,
|
|
maxsize, (u_char *)addr,
|
|
WITH_DROP_FFS | WITH_WR_VERIFY);
|
|
#endif
|
|
} else if (!strcmp(s, ".oob")) {
|
|
/* out-of-band data */
|
|
mtd_oob_ops_t ops = {
|
|
.oobbuf = (u8 *)addr,
|
|
.ooblen = rwsize,
|
|
.mode = MTD_OPS_RAW
|
|
};
|
|
|
|
if (read)
|
|
ret = mtd_read_oob(mtd, off, &ops);
|
|
else
|
|
ret = mtd_write_oob(mtd, off, &ops);
|
|
} else if (raw) {
|
|
ret = raw_access(mtd, addr, off, pagecount, read,
|
|
no_verify);
|
|
} else {
|
|
printf("Unknown nand command suffix '%s'.\n", s);
|
|
return 1;
|
|
}
|
|
|
|
printf(" %zu bytes %s: %s\n", rwsize,
|
|
read ? "read" : "written", ret ? "ERROR" : "OK");
|
|
|
|
return ret == 0 ? 0 : 1;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_NAND_TORTURE
|
|
if (strcmp(cmd, "torture") == 0) {
|
|
loff_t endoff;
|
|
unsigned int failed = 0, passed = 0;
|
|
|
|
if (argc < 3)
|
|
goto usage;
|
|
|
|
if (!str2off(argv[2], &off)) {
|
|
puts("Offset is not a valid number\n");
|
|
return 1;
|
|
}
|
|
|
|
size = mtd->erasesize;
|
|
if (argc > 3) {
|
|
if (!str2off(argv[3], &size)) {
|
|
puts("Size is not a valid number\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
endoff = off + size;
|
|
if (endoff > mtd->size) {
|
|
puts("Arguments beyond end of NAND\n");
|
|
return 1;
|
|
}
|
|
|
|
off = round_down(off, mtd->erasesize);
|
|
endoff = round_up(endoff, mtd->erasesize);
|
|
size = endoff - off;
|
|
printf("\nNAND torture: device %d offset 0x%llx size 0x%llx (block size 0x%x)\n",
|
|
dev, off, size, mtd->erasesize);
|
|
while (off < endoff) {
|
|
ret = nand_torture(mtd, off);
|
|
if (ret) {
|
|
failed++;
|
|
printf(" block at 0x%llx failed\n", off);
|
|
} else {
|
|
passed++;
|
|
}
|
|
off += mtd->erasesize;
|
|
}
|
|
printf(" Passed: %u, failed: %u\n", passed, failed);
|
|
return failed != 0;
|
|
}
|
|
#endif
|
|
|
|
if (strcmp(cmd, "markbad") == 0) {
|
|
argc -= 2;
|
|
argv += 2;
|
|
|
|
if (argc <= 0)
|
|
goto 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;
|
|
}
|
|
|
|
if (strcmp(cmd, "biterr") == 0) {
|
|
int bit;
|
|
|
|
if (argc != 4)
|
|
goto usage;
|
|
|
|
off = (int)simple_strtoul(argv[2], NULL, 16);
|
|
bit = (int)simple_strtoul(argv[3], NULL, 10);
|
|
ret = nand_biterror(mtd, off, bit);
|
|
return ret;
|
|
}
|
|
|
|
#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
|
|
if (strcmp(cmd, "lock") == 0) {
|
|
int tight = 0;
|
|
int status = 0;
|
|
if (argc == 3) {
|
|
if (!strcmp("tight", argv[2]))
|
|
tight = 1;
|
|
if (!strcmp("status", argv[2]))
|
|
status = 1;
|
|
}
|
|
if (status) {
|
|
do_nand_status(mtd);
|
|
} else {
|
|
if (!nand_lock(mtd, tight)) {
|
|
puts("NAND flash successfully locked\n");
|
|
} else {
|
|
puts("Error locking NAND flash\n");
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (strncmp(cmd, "unlock", 5) == 0) {
|
|
int allexcept = 0;
|
|
|
|
s = strchr(cmd, '.');
|
|
|
|
if (s && !strcmp(s, ".allexcept"))
|
|
allexcept = 1;
|
|
|
|
if (mtd_arg_off_size(argc - 2, argv + 2, &dev, &off, &size,
|
|
&maxsize, MTD_DEV_TYPE_NAND,
|
|
mtd->size) < 0)
|
|
return 1;
|
|
|
|
if (set_dev(dev))
|
|
return 1;
|
|
|
|
mtd = get_nand_dev_by_index(dev);
|
|
|
|
if (!nand_unlock(mtd, off, size, allexcept)) {
|
|
puts("NAND flash successfully unlocked\n");
|
|
} else {
|
|
puts("Error unlocking NAND flash, "
|
|
"write and erase will probably fail\n");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
usage:
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
#ifdef CONFIG_SYS_LONGHELP
|
|
static char nand_help_text[] =
|
|
"info - show available NAND devices\n"
|
|
"nand device [dev] - show or set current device\n"
|
|
"nand read - addr off|partition size\n"
|
|
"nand write - addr off|partition size\n"
|
|
" read/write 'size' bytes starting at offset 'off'\n"
|
|
" to/from memory address 'addr', skipping bad blocks.\n"
|
|
"nand read.raw - addr off|partition [count]\n"
|
|
"nand write.raw[.noverify] - addr off|partition [count]\n"
|
|
" Use read.raw/write.raw to avoid ECC and access the flash as-is.\n"
|
|
#ifdef CONFIG_CMD_NAND_TRIMFFS
|
|
"nand write.trimffs - addr off|partition size\n"
|
|
" write 'size' bytes starting at offset 'off' from memory address\n"
|
|
" 'addr', skipping bad blocks and dropping any pages at the end\n"
|
|
" of eraseblocks that contain only 0xFF\n"
|
|
#endif
|
|
"nand erase[.spread] [clean] off size - erase 'size' bytes "
|
|
"from offset 'off'\n"
|
|
" With '.spread', erase enough for given file size, otherwise,\n"
|
|
" 'size' includes skipped bad blocks.\n"
|
|
"nand erase.part [clean] partition - erase entire mtd partition'\n"
|
|
"nand erase.chip [clean] - erase entire chip'\n"
|
|
"nand bad - show bad blocks\n"
|
|
"nand dump[.oob] off - dump page\n"
|
|
#ifdef CONFIG_CMD_NAND_TORTURE
|
|
"nand torture off - torture one block at offset\n"
|
|
"nand torture off [size] - torture blocks from off to off+size\n"
|
|
#endif
|
|
"nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
|
|
" really clean NAND erasing bad blocks (UNSAFE)\n"
|
|
"nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
|
|
"nand biterr off bit - make a bit error at offset and bit position (UNSAFE)"
|
|
#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
|
|
"\n"
|
|
"nand lock [tight] [status]\n"
|
|
" bring nand to lock state or display locked pages\n"
|
|
"nand unlock[.allexcept] [offset] [size] - unlock section"
|
|
#endif
|
|
#ifdef CONFIG_ENV_OFFSET_OOB
|
|
"\n"
|
|
"nand env.oob - environment offset in OOB of block 0 of"
|
|
" first device.\n"
|
|
"nand env.oob set off|partition - set enviromnent offset\n"
|
|
"nand env.oob get - get environment offset"
|
|
#endif
|
|
"";
|
|
#endif
|
|
|
|
U_BOOT_CMD(
|
|
nand, CONFIG_SYS_MAXARGS, 1, do_nand,
|
|
"NAND sub-system", nand_help_text
|
|
);
|
|
|
|
static int nand_load_image(struct cmd_tbl *cmdtp, struct mtd_info *mtd,
|
|
ulong offset, ulong addr, char *cmd)
|
|
{
|
|
int r;
|
|
char *s;
|
|
size_t cnt;
|
|
#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
|
|
struct legacy_img_hdr *hdr;
|
|
#endif
|
|
#if defined(CONFIG_FIT)
|
|
const void *fit_hdr = NULL;
|
|
#endif
|
|
|
|
s = strchr(cmd, '.');
|
|
if (s != NULL &&
|
|
(strcmp(s, ".jffs2") && strcmp(s, ".e") && strcmp(s, ".i"))) {
|
|
printf("Unknown nand load suffix '%s'\n", s);
|
|
bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
|
|
return 1;
|
|
}
|
|
|
|
printf("\nLoading from %s, offset 0x%lx\n", mtd->name, offset);
|
|
|
|
cnt = mtd->writesize;
|
|
r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
|
|
(u_char *)addr);
|
|
if (r) {
|
|
puts("** Read error\n");
|
|
bootstage_error(BOOTSTAGE_ID_NAND_HDR_READ);
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_HDR_READ);
|
|
|
|
switch (genimg_get_format ((void *)addr)) {
|
|
#if defined(CONFIG_LEGACY_IMAGE_FORMAT)
|
|
case IMAGE_FORMAT_LEGACY:
|
|
hdr = (struct legacy_img_hdr *)addr;
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
|
|
image_print_contents (hdr);
|
|
|
|
cnt = image_get_image_size (hdr);
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_FIT)
|
|
case IMAGE_FORMAT_FIT:
|
|
fit_hdr = (const void *)addr;
|
|
puts ("Fit image detected...\n");
|
|
|
|
cnt = fit_get_size (fit_hdr);
|
|
break;
|
|
#endif
|
|
default:
|
|
bootstage_error(BOOTSTAGE_ID_NAND_TYPE);
|
|
puts ("** Unknown image type\n");
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_TYPE);
|
|
|
|
r = nand_read_skip_bad(mtd, offset, &cnt, NULL, mtd->size,
|
|
(u_char *)addr);
|
|
if (r) {
|
|
puts("** Read error\n");
|
|
bootstage_error(BOOTSTAGE_ID_NAND_READ);
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_READ);
|
|
|
|
#if defined(CONFIG_FIT)
|
|
/* This cannot be done earlier, we need complete FIT image in RAM first */
|
|
if (genimg_get_format ((void *)addr) == IMAGE_FORMAT_FIT) {
|
|
if (fit_check_format(fit_hdr, IMAGE_SIZE_INVAL)) {
|
|
bootstage_error(BOOTSTAGE_ID_NAND_FIT_READ);
|
|
puts ("** Bad FIT image format\n");
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_FIT_READ_OK);
|
|
fit_print_contents (fit_hdr);
|
|
}
|
|
#endif
|
|
|
|
/* Loading ok, update default load address */
|
|
|
|
image_load_addr = addr;
|
|
|
|
return bootm_maybe_autostart(cmdtp, cmd);
|
|
}
|
|
|
|
static int do_nandboot(struct cmd_tbl *cmdtp, int flag, int argc,
|
|
char *const argv[])
|
|
{
|
|
char *boot_device = NULL;
|
|
int idx;
|
|
ulong addr, offset = 0;
|
|
struct mtd_info *mtd;
|
|
#if defined(CONFIG_CMD_MTDPARTS)
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
u8 pnum;
|
|
|
|
if (argc >= 2) {
|
|
char *p = (argc == 2) ? argv[1] : argv[2];
|
|
if (!(str2long(p, &addr)) && (mtdparts_init() == 0) &&
|
|
(find_dev_and_part(p, &dev, &pnum, &part) == 0)) {
|
|
if (dev->id->type != MTD_DEV_TYPE_NAND) {
|
|
puts("Not a NAND device\n");
|
|
return 1;
|
|
}
|
|
if (argc > 3)
|
|
goto usage;
|
|
if (argc == 3)
|
|
addr = hextoul(argv[1], NULL);
|
|
else
|
|
addr = CONFIG_SYS_LOAD_ADDR;
|
|
|
|
mtd = get_nand_dev_by_index(dev->id->num);
|
|
return nand_load_image(cmdtp, mtd, part->offset,
|
|
addr, argv[0]);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_PART);
|
|
switch (argc) {
|
|
case 1:
|
|
addr = CONFIG_SYS_LOAD_ADDR;
|
|
boot_device = env_get("bootdevice");
|
|
break;
|
|
case 2:
|
|
addr = hextoul(argv[1], NULL);
|
|
boot_device = env_get("bootdevice");
|
|
break;
|
|
case 3:
|
|
addr = hextoul(argv[1], NULL);
|
|
boot_device = argv[2];
|
|
break;
|
|
case 4:
|
|
addr = hextoul(argv[1], NULL);
|
|
boot_device = argv[2];
|
|
offset = hextoul(argv[3], NULL);
|
|
break;
|
|
default:
|
|
#if defined(CONFIG_CMD_MTDPARTS)
|
|
usage:
|
|
#endif
|
|
bootstage_error(BOOTSTAGE_ID_NAND_SUFFIX);
|
|
return CMD_RET_USAGE;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_SUFFIX);
|
|
|
|
if (!boot_device) {
|
|
puts("\n** No boot device **\n");
|
|
bootstage_error(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_BOOT_DEVICE);
|
|
|
|
idx = hextoul(boot_device, NULL);
|
|
|
|
mtd = get_nand_dev_by_index(idx);
|
|
if (!mtd) {
|
|
printf("\n** Device %d not available\n", idx);
|
|
bootstage_error(BOOTSTAGE_ID_NAND_AVAILABLE);
|
|
return 1;
|
|
}
|
|
bootstage_mark(BOOTSTAGE_ID_NAND_AVAILABLE);
|
|
|
|
return nand_load_image(cmdtp, mtd, offset, addr, argv[0]);
|
|
}
|
|
|
|
U_BOOT_CMD(nboot, 4, 1, do_nandboot,
|
|
"boot from NAND device",
|
|
"[partition] | [[[loadAddr] dev] offset]"
|
|
);
|