upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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490 lines
10 KiB
490 lines
10 KiB
/*
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* U-Boot command for OneNAND support
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*
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* Copyright (C) 2005-2008 Samsung Electronics
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* Kyungmin Park <kyungmin.park@samsung.com>
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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 as
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* published by the Free Software Foundation.
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*/
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#include <common.h>
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#include <command.h>
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#include <malloc.h>
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#include <linux/mtd/compat.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/onenand.h>
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#include <asm/io.h>
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#if !defined(CONFIG_SYS_64BIT_VSPRINTF)
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#warning Please define CONFIG_SYS_64BIT_VSPRINTF for correct output!
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#endif
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static struct mtd_info *mtd;
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static loff_t next_ofs;
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static loff_t skip_ofs;
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static inline int str2long(char *p, ulong *num)
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{
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char *endptr;
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*num = simple_strtoul(p, &endptr, 16);
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return (*p != '\0' && *endptr == '\0') ? 1 : 0;
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}
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static int arg_off_size(int argc, char *argv[], ulong *off, size_t *size)
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{
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if (argc >= 1) {
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if (!(str2long(argv[0], off))) {
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printf("'%s' is not a number\n", argv[0]);
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return -1;
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}
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} else {
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*off = 0;
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}
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if (argc >= 2) {
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if (!(str2long(argv[1], (ulong *)size))) {
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printf("'%s' is not a number\n", argv[1]);
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return -1;
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}
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} else {
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*size = mtd->size - *off;
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}
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if ((*off + *size) > mtd->size) {
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printf("total chip size (0x%llx) exceeded!\n", mtd->size);
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return -1;
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}
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if (*size == mtd->size)
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puts("whole chip\n");
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else
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printf("offset 0x%lx, size 0x%x\n", *off, *size);
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return 0;
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}
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static int onenand_block_read(loff_t from, size_t len,
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size_t *retlen, u_char *buf, int oob)
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{
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struct onenand_chip *this = mtd->priv;
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int blocks = (int) len >> this->erase_shift;
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int blocksize = (1 << this->erase_shift);
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loff_t ofs = from;
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struct mtd_oob_ops ops = {
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.retlen = 0,
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};
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int ret;
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if (oob)
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ops.ooblen = blocksize;
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else
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ops.len = blocksize;
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while (blocks) {
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ret = mtd->block_isbad(mtd, ofs);
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if (ret) {
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printk("Bad blocks %d at 0x%x\n",
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(u32)(ofs >> this->erase_shift), (u32)ofs);
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ofs += blocksize;
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continue;
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}
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if (oob)
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ops.oobbuf = buf;
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else
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ops.datbuf = buf;
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ops.retlen = 0;
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ret = mtd->read_oob(mtd, ofs, &ops);
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if (ret) {
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printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
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ofs += blocksize;
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continue;
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}
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ofs += blocksize;
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buf += blocksize;
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blocks--;
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*retlen += ops.retlen;
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}
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return 0;
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}
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static int onenand_block_write(loff_t to, size_t len,
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size_t *retlen, const u_char * buf)
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{
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struct onenand_chip *this = mtd->priv;
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int blocks = len >> this->erase_shift;
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int blocksize = (1 << this->erase_shift);
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loff_t ofs;
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size_t _retlen = 0;
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int ret;
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if (to == next_ofs) {
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next_ofs = to + len;
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to += skip_ofs;
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} else {
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next_ofs = to + len;
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skip_ofs = 0;
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}
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ofs = to;
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while (blocks) {
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ret = mtd->block_isbad(mtd, ofs);
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if (ret) {
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printk("Bad blocks %d at 0x%x\n",
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(u32)(ofs >> this->erase_shift), (u32)ofs);
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skip_ofs += blocksize;
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goto next;
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}
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ret = mtd->write(mtd, ofs, blocksize, &_retlen, buf);
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if (ret) {
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printk("Write failed 0x%x, %d", (u32)ofs, ret);
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skip_ofs += blocksize;
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goto next;
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}
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buf += blocksize;
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blocks--;
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*retlen += _retlen;
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next:
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ofs += blocksize;
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}
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return 0;
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}
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static int onenand_block_erase(u32 start, u32 size, int force)
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{
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struct onenand_chip *this = mtd->priv;
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struct erase_info instr = {
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.callback = NULL,
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};
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loff_t ofs;
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int ret;
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int blocksize = 1 << this->erase_shift;
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for (ofs = start; ofs < (start + size); ofs += blocksize) {
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ret = mtd->block_isbad(mtd, ofs);
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if (ret && !force) {
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printf("Skip erase bad block %d at 0x%x\n",
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(u32)(ofs >> this->erase_shift), (u32)ofs);
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continue;
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}
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instr.addr = ofs;
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instr.len = blocksize;
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instr.priv = force;
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instr.mtd = mtd;
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ret = mtd->erase(mtd, &instr);
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if (ret) {
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printf("erase failed block %d at 0x%x\n",
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(u32)(ofs >> this->erase_shift), (u32)ofs);
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continue;
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}
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}
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return 0;
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}
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static int onenand_block_test(u32 start, u32 size)
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{
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struct onenand_chip *this = mtd->priv;
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struct erase_info instr = {
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.callback = NULL,
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.priv = 0,
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};
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int blocks;
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loff_t ofs;
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int blocksize = 1 << this->erase_shift;
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int start_block, end_block;
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size_t retlen;
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u_char *buf;
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u_char *verify_buf;
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int ret;
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buf = malloc(blocksize);
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if (!buf) {
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printf("Not enough malloc space available!\n");
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return -1;
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}
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verify_buf = malloc(blocksize);
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if (!verify_buf) {
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printf("Not enough malloc space available!\n");
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return -1;
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}
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start_block = start >> this->erase_shift;
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end_block = (start + size) >> this->erase_shift;
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/* Protect boot-loader from badblock testing */
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if (start_block < 2)
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start_block = 2;
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if (end_block > (mtd->size >> this->erase_shift))
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end_block = mtd->size >> this->erase_shift;
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blocks = start_block;
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ofs = start;
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while (blocks < end_block) {
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printf("\rTesting block %d at 0x%x", (u32)(ofs >> this->erase_shift), (u32)ofs);
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ret = mtd->block_isbad(mtd, ofs);
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if (ret) {
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printf("Skip erase bad block %d at 0x%x\n",
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(u32)(ofs >> this->erase_shift), (u32)ofs);
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goto next;
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}
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instr.addr = ofs;
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instr.len = blocksize;
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ret = mtd->erase(mtd, &instr);
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if (ret) {
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printk("Erase failed 0x%x, %d\n", (u32)ofs, ret);
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goto next;
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}
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ret = mtd->write(mtd, ofs, blocksize, &retlen, buf);
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if (ret) {
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printk("Write failed 0x%x, %d\n", (u32)ofs, ret);
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goto next;
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}
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ret = mtd->read(mtd, ofs, blocksize, &retlen, verify_buf);
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if (ret) {
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printk("Read failed 0x%x, %d\n", (u32)ofs, ret);
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goto next;
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}
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if (memcmp(buf, verify_buf, blocksize))
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printk("\nRead/Write test failed at 0x%x\n", (u32)ofs);
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next:
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ofs += blocksize;
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blocks++;
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}
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printf("...Done\n");
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free(buf);
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free(verify_buf);
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return 0;
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}
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static int onenand_dump(struct mtd_info *mtd, ulong off, int only_oob)
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{
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int i;
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u_char *datbuf, *oobbuf, *p;
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struct mtd_oob_ops ops;
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loff_t addr;
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datbuf = malloc(mtd->writesize + mtd->oobsize);
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oobbuf = malloc(mtd->oobsize);
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if (!datbuf || !oobbuf) {
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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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off &= ~(mtd->writesize - 1);
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addr = (loff_t) off;
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memset(&ops, 0, sizeof(ops));
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ops.datbuf = datbuf;
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ops.oobbuf = oobbuf; /* must exist, but oob data will be appended to ops.datbuf */
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ops.len = mtd->writesize;
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ops.ooblen = mtd->oobsize;
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ops.retlen = 0;
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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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free(datbuf);
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free(oobbuf);
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return 1;
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}
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printf("Page %08lx dump:\n", off);
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i = mtd->writesize >> 4;
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p = datbuf;
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while (i--) {
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if (!only_oob)
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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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puts("OOB:\n");
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i = mtd->oobsize >> 3;
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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(datbuf);
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free(oobbuf);
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return 0;
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}
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int do_onenand(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
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{
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struct onenand_chip *this;
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int blocksize;
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ulong addr, ofs;
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size_t len, retlen = 0;
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int ret;
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char *cmd, *s;
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mtd = &onenand_mtd;
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this = mtd->priv;
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blocksize = (1 << this->erase_shift);
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cmd = argv[1];
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switch (argc) {
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case 0:
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case 1:
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goto usage;
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case 2:
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if (strcmp(cmd, "info") == 0) {
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printf("%s\n", mtd->name);
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return 0;
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}
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if (strcmp(cmd, "bad") == 0) {
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/* Currently only one OneNAND device is supported */
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printf("\nDevice %d bad blocks:\n", 0);
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for (ofs = 0; ofs < mtd->size; ofs += mtd->erasesize) {
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if (mtd->block_isbad(mtd, ofs))
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printf(" %08x\n", (u32)ofs);
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}
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return 0;
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}
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default:
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/* At least 4 args */
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/*
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* Syntax is:
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* 0 1 2 3 4
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* onenand erase [force] [off size]
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*/
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if ((strcmp(cmd, "erase") == 0) || (strcmp(cmd, "test") == 0)) {
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int force = argc > 2 && !strcmp("force", argv[2]);
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int o = force ? 3 : 2;
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int erase;
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erase = strcmp(cmd, "erase") == 0; /* 1 = erase, 0 = test */
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printf("\nOneNAND %s: ", erase ? "erase" : "test");
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/* skip first two or three arguments, look for offset and size */
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if (arg_off_size(argc - o, argv + o, &ofs, &len) != 0)
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return 1;
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if (erase)
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ret = onenand_block_erase(ofs, len, force);
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else
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ret = onenand_block_test(ofs, len);
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printf("%s\n", ret ? "ERROR" : "OK");
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return ret == 0 ? 0 : 1;
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}
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if (strncmp(cmd, "read", 4) == 0 || strncmp(cmd, "write", 5) == 0) {
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int read;
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int oob = 0;
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if (argc < 4)
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goto usage;
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addr = (ulong)simple_strtoul(argv[2], NULL, 16);
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read = strncmp(cmd, "read", 4) == 0; /* 1 = read, 0 = write */
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printf("\nOneNAND %s: ", read ? "read" : "write");
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if (arg_off_size(argc - 3, argv + 3, &ofs, &len) != 0)
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return 1;
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s = strchr(cmd, '.');
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if ((s != NULL) && (!strcmp(s, ".oob")))
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oob = 1;
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if (read) {
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ret = onenand_block_read(ofs, len, &retlen,
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(u8 *)addr, oob);
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} else {
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ret = onenand_block_write(ofs, len, &retlen,
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(u8 *)addr);
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}
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printf(" %d bytes %s: %s\n", retlen,
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read ? "read" : "written", ret ? "ERROR" : "OK");
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return ret == 0 ? 0 : 1;
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}
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if (strcmp(cmd, "markbad") == 0) {
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addr = (ulong)simple_strtoul(argv[2], NULL, 16);
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int ret = mtd->block_markbad(mtd, addr);
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if (ret == 0) {
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printf("block 0x%08lx successfully marked as bad\n",
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(ulong) addr);
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return 0;
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} else {
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printf("block 0x%08lx NOT marked as bad! ERROR %d\n",
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(ulong) addr, ret);
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}
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return 1;
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}
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if (strncmp(cmd, "dump", 4) == 0) {
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if (argc < 3)
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goto usage;
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s = strchr(cmd, '.');
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ofs = (int)simple_strtoul(argv[2], NULL, 16);
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if (s != NULL && strcmp(s, ".oob") == 0)
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ret = onenand_dump(mtd, ofs, 1);
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else
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ret = onenand_dump(mtd, ofs, 0);
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return ret == 0 ? 1 : 0;
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}
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break;
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}
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return 0;
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usage:
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cmd_usage(cmdtp);
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return 1;
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}
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U_BOOT_CMD(
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onenand, 6, 1, do_onenand,
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"OneNAND sub-system",
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"info - show available OneNAND devices\n"
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"onenand bad - show bad blocks\n"
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"onenand read[.oob] addr off size\n"
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"onenand write[.oob] addr off size\n"
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" read/write 'size' bytes starting at offset 'off'\n"
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" to/from memory address 'addr', skipping bad blocks.\n"
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"onenand erase [force] [off size] - erase 'size' bytes from\n"
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"onenand test [off size] - test 'size' bytes from\n"
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" offset 'off' (entire device if not specified)\n"
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"onenand dump[.oob] off - dump page\n"
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"onenand markbad off [...] - mark bad block(s) at offset (UNSAFE)"
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);
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