mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
Change all files in common/ to use CMD_RET_USAGE instead of calling cmd_usage() directly. I'm not completely sure about this patch since the code since impact is small (100 byte or so on ARM) and it might need splitting into smaller patches. But for now here it is. Signed-off-by: Simon Glass <sjg@chromium.org>
2096 lines
52 KiB
C
2096 lines
52 KiB
C
/*
|
|
* (C) Copyright 2002
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* (C) Copyright 2002
|
|
* Robert Schwebel, Pengutronix, <r.schwebel@pengutronix.de>
|
|
*
|
|
* (C) Copyright 2003
|
|
* Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.de>
|
|
*
|
|
* (C) Copyright 2005
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* Added support for reading flash partition table from environment.
|
|
* Parsing routines are based on driver/mtd/cmdline.c from the linux 2.4
|
|
* kernel tree.
|
|
*
|
|
* (C) Copyright 2008
|
|
* Harald Welte, OpenMoko, Inc., Harald Welte <laforge@openmoko.org>
|
|
*
|
|
* $Id: cmdlinepart.c,v 1.17 2004/11/26 11:18:47 lavinen Exp $
|
|
* Copyright 2002 SYSGO Real-Time Solutions GmbH
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* Three environment variables are used by the parsing routines:
|
|
*
|
|
* 'partition' - keeps current partition identifier
|
|
*
|
|
* partition := <part-id>
|
|
* <part-id> := <dev-id>,part_num
|
|
*
|
|
*
|
|
* 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
|
|
*
|
|
* mtdids=<idmap>[,<idmap>,...]
|
|
*
|
|
* <idmap> := <dev-id>=<mtd-id>
|
|
* <dev-id> := 'nand'|'nor'|'onenand'<dev-num>
|
|
* <dev-num> := mtd device number, 0...
|
|
* <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
|
|
*
|
|
*
|
|
* 'mtdparts' - partition list
|
|
*
|
|
* mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]
|
|
*
|
|
* <mtd-def> := <mtd-id>:<part-def>[,<part-def>...]
|
|
* <mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)
|
|
* <part-def> := <size>[@<offset>][<name>][<ro-flag>]
|
|
* <size> := standard linux memsize OR '-' to denote all remaining space
|
|
* <offset> := partition start offset within the device
|
|
* <name> := '(' NAME ')'
|
|
* <ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)
|
|
*
|
|
* Notes:
|
|
* - each <mtd-id> used in mtdparts must albo exist in 'mtddis' mapping
|
|
* - if the above variables are not set defaults for a given target are used
|
|
*
|
|
* Examples:
|
|
*
|
|
* 1 NOR Flash, with 1 single writable partition:
|
|
* mtdids=nor0=edb7312-nor
|
|
* mtdparts=mtdparts=edb7312-nor:-
|
|
*
|
|
* 1 NOR Flash with 2 partitions, 1 NAND with one
|
|
* mtdids=nor0=edb7312-nor,nand0=edb7312-nand
|
|
* mtdparts=mtdparts=edb7312-nor:256k(ARMboot)ro,-(root);edb7312-nand:-(home)
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <malloc.h>
|
|
#include <jffs2/load_kernel.h>
|
|
#include <linux/list.h>
|
|
#include <linux/ctype.h>
|
|
#include <linux/err.h>
|
|
#include <linux/mtd/mtd.h>
|
|
|
|
#if defined(CONFIG_CMD_NAND)
|
|
#include <linux/mtd/nand.h>
|
|
#include <nand.h>
|
|
#endif
|
|
|
|
#if defined(CONFIG_CMD_ONENAND)
|
|
#include <linux/mtd/onenand.h>
|
|
#include <onenand_uboot.h>
|
|
#endif
|
|
|
|
/* special size referring to all the remaining space in a partition */
|
|
#define SIZE_REMAINING 0xFFFFFFFF
|
|
|
|
/* special offset value, it is used when not provided by user
|
|
*
|
|
* this value is used temporarily during parsing, later such offests
|
|
* are recalculated */
|
|
#define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
|
|
|
|
/* minimum partition size */
|
|
#define MIN_PART_SIZE 4096
|
|
|
|
/* this flag needs to be set in part_info struct mask_flags
|
|
* field for read-only partitions */
|
|
#define MTD_WRITEABLE_CMD 1
|
|
|
|
/* default values for mtdids and mtdparts variables */
|
|
#if defined(MTDIDS_DEFAULT)
|
|
static const char *const mtdids_default = MTDIDS_DEFAULT;
|
|
#else
|
|
static const char *const mtdids_default = NULL;
|
|
#endif
|
|
|
|
#if defined(MTDPARTS_DEFAULT)
|
|
static const char *const mtdparts_default = MTDPARTS_DEFAULT;
|
|
#else
|
|
static const char *const mtdparts_default = NULL;
|
|
#endif
|
|
|
|
/* copies of last seen 'mtdids', 'mtdparts' and 'partition' env variables */
|
|
#define MTDIDS_MAXLEN 128
|
|
#define MTDPARTS_MAXLEN 512
|
|
#define PARTITION_MAXLEN 16
|
|
static char last_ids[MTDIDS_MAXLEN];
|
|
static char last_parts[MTDPARTS_MAXLEN];
|
|
static char last_partition[PARTITION_MAXLEN];
|
|
|
|
/* low level jffs2 cache cleaning routine */
|
|
extern void jffs2_free_cache(struct part_info *part);
|
|
|
|
/* mtdids mapping list, filled by parse_ids() */
|
|
struct list_head mtdids;
|
|
|
|
/* device/partition list, parse_cmdline() parses into here */
|
|
struct list_head devices;
|
|
|
|
/* current active device and partition number */
|
|
struct mtd_device *current_mtd_dev = NULL;
|
|
u8 current_mtd_partnum = 0;
|
|
|
|
static struct part_info* mtd_part_info(struct mtd_device *dev, unsigned int part_num);
|
|
|
|
/* command line only routines */
|
|
static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len);
|
|
static int device_del(struct mtd_device *dev);
|
|
|
|
/**
|
|
* Parses a string into a number. The number stored at ptr is
|
|
* potentially suffixed with K (for kilobytes, or 1024 bytes),
|
|
* M (for megabytes, or 1048576 bytes), or G (for gigabytes, or
|
|
* 1073741824). If the number is suffixed with K, M, or G, then
|
|
* the return value is the number multiplied by one kilobyte, one
|
|
* megabyte, or one gigabyte, respectively.
|
|
*
|
|
* @param ptr where parse begins
|
|
* @param retptr output pointer to next char after parse completes (output)
|
|
* @return resulting unsigned int
|
|
*/
|
|
static unsigned long memsize_parse (const char *const ptr, const char **retptr)
|
|
{
|
|
unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
|
|
|
|
switch (**retptr) {
|
|
case 'G':
|
|
case 'g':
|
|
ret <<= 10;
|
|
case 'M':
|
|
case 'm':
|
|
ret <<= 10;
|
|
case 'K':
|
|
case 'k':
|
|
ret <<= 10;
|
|
(*retptr)++;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* Format string describing supplied size. This routine does the opposite job
|
|
* to memsize_parse(). Size in bytes is converted to string and if possible
|
|
* shortened by using k (kilobytes), m (megabytes) or g (gigabytes) suffix.
|
|
*
|
|
* Note, that this routine does not check for buffer overflow, it's the caller
|
|
* who must assure enough space.
|
|
*
|
|
* @param buf output buffer
|
|
* @param size size to be converted to string
|
|
*/
|
|
static void memsize_format(char *buf, u32 size)
|
|
{
|
|
#define SIZE_GB ((u32)1024*1024*1024)
|
|
#define SIZE_MB ((u32)1024*1024)
|
|
#define SIZE_KB ((u32)1024)
|
|
|
|
if ((size % SIZE_GB) == 0)
|
|
sprintf(buf, "%ug", size/SIZE_GB);
|
|
else if ((size % SIZE_MB) == 0)
|
|
sprintf(buf, "%um", size/SIZE_MB);
|
|
else if (size % SIZE_KB == 0)
|
|
sprintf(buf, "%uk", size/SIZE_KB);
|
|
else
|
|
sprintf(buf, "%u", size);
|
|
}
|
|
|
|
/**
|
|
* This routine does global indexing of all partitions. Resulting index for
|
|
* current partition is saved in 'mtddevnum'. Current partition name in
|
|
* 'mtddevname'.
|
|
*/
|
|
static void index_partitions(void)
|
|
{
|
|
char buf[16];
|
|
u16 mtddevnum;
|
|
struct part_info *part;
|
|
struct list_head *dentry;
|
|
struct mtd_device *dev;
|
|
|
|
debug("--- index partitions ---\n");
|
|
|
|
if (current_mtd_dev) {
|
|
mtddevnum = 0;
|
|
list_for_each(dentry, &devices) {
|
|
dev = list_entry(dentry, struct mtd_device, link);
|
|
if (dev == current_mtd_dev) {
|
|
mtddevnum += current_mtd_partnum;
|
|
sprintf(buf, "%d", mtddevnum);
|
|
setenv("mtddevnum", buf);
|
|
break;
|
|
}
|
|
mtddevnum += dev->num_parts;
|
|
}
|
|
|
|
part = mtd_part_info(current_mtd_dev, current_mtd_partnum);
|
|
setenv("mtddevname", part->name);
|
|
|
|
debug("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
|
|
} else {
|
|
setenv("mtddevnum", NULL);
|
|
setenv("mtddevname", NULL);
|
|
|
|
debug("=> mtddevnum NULL\n=> mtddevname NULL\n");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Save current device and partition in environment variable 'partition'.
|
|
*/
|
|
static void current_save(void)
|
|
{
|
|
char buf[16];
|
|
|
|
debug("--- current_save ---\n");
|
|
|
|
if (current_mtd_dev) {
|
|
sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_mtd_dev->id->type),
|
|
current_mtd_dev->id->num, current_mtd_partnum);
|
|
|
|
setenv("partition", buf);
|
|
strncpy(last_partition, buf, 16);
|
|
|
|
debug("=> partition %s\n", buf);
|
|
} else {
|
|
setenv("partition", NULL);
|
|
last_partition[0] = '\0';
|
|
|
|
debug("=> partition NULL\n");
|
|
}
|
|
index_partitions();
|
|
}
|
|
|
|
|
|
/**
|
|
* Produce a mtd_info given a type and num.
|
|
*
|
|
* @param type mtd type
|
|
* @param num mtd number
|
|
* @param mtd a pointer to an mtd_info instance (output)
|
|
* @return 0 if device is valid, 1 otherwise
|
|
*/
|
|
static int get_mtd_info(u8 type, u8 num, struct mtd_info **mtd)
|
|
{
|
|
char mtd_dev[16];
|
|
|
|
sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(type), num);
|
|
*mtd = get_mtd_device_nm(mtd_dev);
|
|
if (IS_ERR(*mtd)) {
|
|
printf("Device %s not found!\n", mtd_dev);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Performs sanity check for supplied flash partition.
|
|
* Table of existing MTD flash devices is searched and partition device
|
|
* is located. Alignment with the granularity of nand erasesize is verified.
|
|
*
|
|
* @param id of the parent device
|
|
* @param part partition to validate
|
|
* @return 0 if partition is valid, 1 otherwise
|
|
*/
|
|
static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
|
|
{
|
|
struct mtd_info *mtd = NULL;
|
|
int i, j;
|
|
ulong start;
|
|
|
|
if (get_mtd_info(id->type, id->num, &mtd))
|
|
return 1;
|
|
|
|
part->sector_size = mtd->erasesize;
|
|
|
|
if (!mtd->numeraseregions) {
|
|
/*
|
|
* Only one eraseregion (NAND, OneNAND or uniform NOR),
|
|
* checking for alignment is easy here
|
|
*/
|
|
if ((unsigned long)part->offset % mtd->erasesize) {
|
|
printf("%s%d: partition (%s) start offset"
|
|
"alignment incorrect\n",
|
|
MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
return 1;
|
|
}
|
|
|
|
if (part->size % mtd->erasesize) {
|
|
printf("%s%d: partition (%s) size alignment incorrect\n",
|
|
MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
return 1;
|
|
}
|
|
} else {
|
|
/*
|
|
* Multiple eraseregions (non-uniform NOR),
|
|
* checking for alignment is more complex here
|
|
*/
|
|
|
|
/* Check start alignment */
|
|
for (i = 0; i < mtd->numeraseregions; i++) {
|
|
start = mtd->eraseregions[i].offset;
|
|
for (j = 0; j < mtd->eraseregions[i].numblocks; j++) {
|
|
if (part->offset == start)
|
|
goto start_ok;
|
|
start += mtd->eraseregions[i].erasesize;
|
|
}
|
|
}
|
|
|
|
printf("%s%d: partition (%s) start offset alignment incorrect\n",
|
|
MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
return 1;
|
|
|
|
start_ok:
|
|
|
|
/* Check end/size alignment */
|
|
for (i = 0; i < mtd->numeraseregions; i++) {
|
|
start = mtd->eraseregions[i].offset;
|
|
for (j = 0; j < mtd->eraseregions[i].numblocks; j++) {
|
|
if ((part->offset + part->size) == start)
|
|
goto end_ok;
|
|
start += mtd->eraseregions[i].erasesize;
|
|
}
|
|
}
|
|
/* Check last sector alignment */
|
|
if ((part->offset + part->size) == start)
|
|
goto end_ok;
|
|
|
|
printf("%s%d: partition (%s) size alignment incorrect\n",
|
|
MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
return 1;
|
|
|
|
end_ok:
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
/**
|
|
* Performs sanity check for supplied partition. Offset and size are verified
|
|
* to be within valid range. Partition type is checked and either
|
|
* parts_validate_nor() or parts_validate_nand() is called with the argument
|
|
* of part.
|
|
*
|
|
* @param id of the parent device
|
|
* @param part partition to validate
|
|
* @return 0 if partition is valid, 1 otherwise
|
|
*/
|
|
static int part_validate(struct mtdids *id, struct part_info *part)
|
|
{
|
|
if (part->size == SIZE_REMAINING)
|
|
part->size = id->size - part->offset;
|
|
|
|
if (part->offset > id->size) {
|
|
printf("%s: offset %08x beyond flash size %08x\n",
|
|
id->mtd_id, part->offset, id->size);
|
|
return 1;
|
|
}
|
|
|
|
if ((part->offset + part->size) <= part->offset) {
|
|
printf("%s%d: partition (%s) size too big\n",
|
|
MTD_DEV_TYPE(id->type), id->num, part->name);
|
|
return 1;
|
|
}
|
|
|
|
if (part->offset + part->size > id->size) {
|
|
printf("%s: partitioning exceeds flash size\n", id->mtd_id);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Now we need to check if the partition starts and ends on
|
|
* sector (eraseblock) regions
|
|
*/
|
|
return part_validate_eraseblock(id, part);
|
|
}
|
|
|
|
/**
|
|
* Delete selected partition from the partion list of the specified device.
|
|
*
|
|
* @param dev device to delete partition from
|
|
* @param part partition to delete
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int part_del(struct mtd_device *dev, struct part_info *part)
|
|
{
|
|
u8 current_save_needed = 0;
|
|
|
|
/* if there is only one partition, remove whole device */
|
|
if (dev->num_parts == 1)
|
|
return device_del(dev);
|
|
|
|
/* otherwise just delete this partition */
|
|
|
|
if (dev == current_mtd_dev) {
|
|
/* we are modyfing partitions for the current device,
|
|
* update current */
|
|
struct part_info *curr_pi;
|
|
curr_pi = mtd_part_info(current_mtd_dev, current_mtd_partnum);
|
|
|
|
if (curr_pi) {
|
|
if (curr_pi == part) {
|
|
printf("current partition deleted, resetting current to 0\n");
|
|
current_mtd_partnum = 0;
|
|
} else if (part->offset <= curr_pi->offset) {
|
|
current_mtd_partnum--;
|
|
}
|
|
current_save_needed = 1;
|
|
}
|
|
}
|
|
|
|
list_del(&part->link);
|
|
free(part);
|
|
dev->num_parts--;
|
|
|
|
if (current_save_needed > 0)
|
|
current_save();
|
|
else
|
|
index_partitions();
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Delete all partitions from parts head list, free memory.
|
|
*
|
|
* @param head list of partitions to delete
|
|
*/
|
|
static void part_delall(struct list_head *head)
|
|
{
|
|
struct list_head *entry, *n;
|
|
struct part_info *part_tmp;
|
|
|
|
/* clean tmp_list and free allocated memory */
|
|
list_for_each_safe(entry, n, head) {
|
|
part_tmp = list_entry(entry, struct part_info, link);
|
|
|
|
list_del(entry);
|
|
free(part_tmp);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add new partition to the supplied partition list. Make sure partitions are
|
|
* sorted by offset in ascending order.
|
|
*
|
|
* @param head list this partition is to be added to
|
|
* @param new partition to be added
|
|
*/
|
|
static int part_sort_add(struct mtd_device *dev, struct part_info *part)
|
|
{
|
|
struct list_head *entry;
|
|
struct part_info *new_pi, *curr_pi;
|
|
|
|
/* link partition to parrent dev */
|
|
part->dev = dev;
|
|
|
|
if (list_empty(&dev->parts)) {
|
|
debug("part_sort_add: list empty\n");
|
|
list_add(&part->link, &dev->parts);
|
|
dev->num_parts++;
|
|
index_partitions();
|
|
return 0;
|
|
}
|
|
|
|
new_pi = list_entry(&part->link, struct part_info, link);
|
|
|
|
/* get current partition info if we are updating current device */
|
|
curr_pi = NULL;
|
|
if (dev == current_mtd_dev)
|
|
curr_pi = mtd_part_info(current_mtd_dev, current_mtd_partnum);
|
|
|
|
list_for_each(entry, &dev->parts) {
|
|
struct part_info *pi;
|
|
|
|
pi = list_entry(entry, struct part_info, link);
|
|
|
|
/* be compliant with kernel cmdline, allow only one partition at offset zero */
|
|
if ((new_pi->offset == pi->offset) && (pi->offset == 0)) {
|
|
printf("cannot add second partition at offset 0\n");
|
|
return 1;
|
|
}
|
|
|
|
if (new_pi->offset <= pi->offset) {
|
|
list_add_tail(&part->link, entry);
|
|
dev->num_parts++;
|
|
|
|
if (curr_pi && (pi->offset <= curr_pi->offset)) {
|
|
/* we are modyfing partitions for the current
|
|
* device, update current */
|
|
current_mtd_partnum++;
|
|
current_save();
|
|
} else {
|
|
index_partitions();
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
list_add_tail(&part->link, &dev->parts);
|
|
dev->num_parts++;
|
|
index_partitions();
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Add provided partition to the partition list of a given device.
|
|
*
|
|
* @param dev device to which partition is added
|
|
* @param part partition to be added
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int part_add(struct mtd_device *dev, struct part_info *part)
|
|
{
|
|
/* verify alignment and size */
|
|
if (part_validate(dev->id, part) != 0)
|
|
return 1;
|
|
|
|
/* partition is ok, add it to the list */
|
|
if (part_sort_add(dev, part) != 0)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Parse one partition definition, allocate memory and return pointer to this
|
|
* location in retpart.
|
|
*
|
|
* @param partdef pointer to the partition definition string i.e. <part-def>
|
|
* @param ret output pointer to next char after parse completes (output)
|
|
* @param retpart pointer to the allocated partition (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
|
|
{
|
|
struct part_info *part;
|
|
unsigned long size;
|
|
unsigned long offset;
|
|
const char *name;
|
|
int name_len;
|
|
unsigned int mask_flags;
|
|
const char *p;
|
|
|
|
p = partdef;
|
|
*retpart = NULL;
|
|
*ret = NULL;
|
|
|
|
/* fetch the partition size */
|
|
if (*p == '-') {
|
|
/* assign all remaining space to this partition */
|
|
debug("'-': remaining size assigned\n");
|
|
size = SIZE_REMAINING;
|
|
p++;
|
|
} else {
|
|
size = memsize_parse(p, &p);
|
|
if (size < MIN_PART_SIZE) {
|
|
printf("partition size too small (%lx)\n", size);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* check for offset */
|
|
offset = OFFSET_NOT_SPECIFIED;
|
|
if (*p == '@') {
|
|
p++;
|
|
offset = memsize_parse(p, &p);
|
|
}
|
|
|
|
/* now look for the name */
|
|
if (*p == '(') {
|
|
name = ++p;
|
|
if ((p = strchr(name, ')')) == NULL) {
|
|
printf("no closing ) found in partition name\n");
|
|
return 1;
|
|
}
|
|
name_len = p - name + 1;
|
|
if ((name_len - 1) == 0) {
|
|
printf("empty partition name\n");
|
|
return 1;
|
|
}
|
|
p++;
|
|
} else {
|
|
/* 0x00000000@0x00000000 */
|
|
name_len = 22;
|
|
name = NULL;
|
|
}
|
|
|
|
/* test for options */
|
|
mask_flags = 0;
|
|
if (strncmp(p, "ro", 2) == 0) {
|
|
mask_flags |= MTD_WRITEABLE_CMD;
|
|
p += 2;
|
|
}
|
|
|
|
/* check for next partition definition */
|
|
if (*p == ',') {
|
|
if (size == SIZE_REMAINING) {
|
|
*ret = NULL;
|
|
printf("no partitions allowed after a fill-up partition\n");
|
|
return 1;
|
|
}
|
|
*ret = ++p;
|
|
} else if ((*p == ';') || (*p == '\0')) {
|
|
*ret = p;
|
|
} else {
|
|
printf("unexpected character '%c' at the end of partition\n", *p);
|
|
*ret = NULL;
|
|
return 1;
|
|
}
|
|
|
|
/* allocate memory */
|
|
part = (struct part_info *)malloc(sizeof(struct part_info) + name_len);
|
|
if (!part) {
|
|
printf("out of memory\n");
|
|
return 1;
|
|
}
|
|
memset(part, 0, sizeof(struct part_info) + name_len);
|
|
part->size = size;
|
|
part->offset = offset;
|
|
part->mask_flags = mask_flags;
|
|
part->name = (char *)(part + 1);
|
|
|
|
if (name) {
|
|
/* copy user provided name */
|
|
strncpy(part->name, name, name_len - 1);
|
|
part->auto_name = 0;
|
|
} else {
|
|
/* auto generated name in form of size@offset */
|
|
sprintf(part->name, "0x%08lx@0x%08lx", size, offset);
|
|
part->auto_name = 1;
|
|
}
|
|
|
|
part->name[name_len - 1] = '\0';
|
|
INIT_LIST_HEAD(&part->link);
|
|
|
|
debug("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
|
|
part->name, part->size,
|
|
part->offset, part->mask_flags);
|
|
|
|
*retpart = part;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Check device number to be within valid range for given device type.
|
|
*
|
|
* @param type mtd type
|
|
* @param num mtd number
|
|
* @param size a pointer to the size of the mtd device (output)
|
|
* @return 0 if device is valid, 1 otherwise
|
|
*/
|
|
int mtd_device_validate(u8 type, u8 num, u32 *size)
|
|
{
|
|
struct mtd_info *mtd = NULL;
|
|
|
|
if (get_mtd_info(type, num, &mtd))
|
|
return 1;
|
|
|
|
*size = mtd->size;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Delete all mtd devices from a supplied devices list, free memory allocated for
|
|
* each device and delete all device partitions.
|
|
*
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int device_delall(struct list_head *head)
|
|
{
|
|
struct list_head *entry, *n;
|
|
struct mtd_device *dev_tmp;
|
|
|
|
/* clean devices list */
|
|
list_for_each_safe(entry, n, head) {
|
|
dev_tmp = list_entry(entry, struct mtd_device, link);
|
|
list_del(entry);
|
|
part_delall(&dev_tmp->parts);
|
|
free(dev_tmp);
|
|
}
|
|
INIT_LIST_HEAD(&devices);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* If provided device exists it's partitions are deleted, device is removed
|
|
* from device list and device memory is freed.
|
|
*
|
|
* @param dev device to be deleted
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int device_del(struct mtd_device *dev)
|
|
{
|
|
part_delall(&dev->parts);
|
|
list_del(&dev->link);
|
|
free(dev);
|
|
|
|
if (dev == current_mtd_dev) {
|
|
/* we just deleted current device */
|
|
if (list_empty(&devices)) {
|
|
current_mtd_dev = NULL;
|
|
} else {
|
|
/* reset first partition from first dev from the
|
|
* devices list as current */
|
|
current_mtd_dev = list_entry(devices.next, struct mtd_device, link);
|
|
current_mtd_partnum = 0;
|
|
}
|
|
current_save();
|
|
return 0;
|
|
}
|
|
|
|
index_partitions();
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Search global device list and return pointer to the device of type and num
|
|
* specified.
|
|
*
|
|
* @param type device type
|
|
* @param num device number
|
|
* @return NULL if requested device does not exist
|
|
*/
|
|
struct mtd_device *device_find(u8 type, u8 num)
|
|
{
|
|
struct list_head *entry;
|
|
struct mtd_device *dev_tmp;
|
|
|
|
list_for_each(entry, &devices) {
|
|
dev_tmp = list_entry(entry, struct mtd_device, link);
|
|
|
|
if ((dev_tmp->id->type == type) && (dev_tmp->id->num == num))
|
|
return dev_tmp;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Add specified device to the global device list.
|
|
*
|
|
* @param dev device to be added
|
|
*/
|
|
static void device_add(struct mtd_device *dev)
|
|
{
|
|
u8 current_save_needed = 0;
|
|
|
|
if (list_empty(&devices)) {
|
|
current_mtd_dev = dev;
|
|
current_mtd_partnum = 0;
|
|
current_save_needed = 1;
|
|
}
|
|
|
|
list_add_tail(&dev->link, &devices);
|
|
|
|
if (current_save_needed > 0)
|
|
current_save();
|
|
else
|
|
index_partitions();
|
|
}
|
|
|
|
/**
|
|
* Parse device type, name and mtd-id. If syntax is ok allocate memory and
|
|
* return pointer to the device structure.
|
|
*
|
|
* @param mtd_dev pointer to the device definition string i.e. <mtd-dev>
|
|
* @param ret output pointer to next char after parse completes (output)
|
|
* @param retdev pointer to the allocated device (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_device **retdev)
|
|
{
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
struct mtdids *id;
|
|
const char *mtd_id;
|
|
unsigned int mtd_id_len;
|
|
const char *p;
|
|
const char *pend;
|
|
LIST_HEAD(tmp_list);
|
|
struct list_head *entry, *n;
|
|
u16 num_parts;
|
|
u32 offset;
|
|
int err = 1;
|
|
|
|
debug("===device_parse===\n");
|
|
|
|
assert(retdev);
|
|
*retdev = NULL;
|
|
|
|
if (ret)
|
|
*ret = NULL;
|
|
|
|
/* fetch <mtd-id> */
|
|
mtd_id = p = mtd_dev;
|
|
if (!(p = strchr(mtd_id, ':'))) {
|
|
printf("no <mtd-id> identifier\n");
|
|
return 1;
|
|
}
|
|
mtd_id_len = p - mtd_id + 1;
|
|
p++;
|
|
|
|
/* verify if we have a valid device specified */
|
|
if ((id = id_find_by_mtd_id(mtd_id, mtd_id_len - 1)) == NULL) {
|
|
printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
|
|
return 1;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
pend = strchr(p, ';');
|
|
#endif
|
|
debug("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
|
|
id->type, MTD_DEV_TYPE(id->type),
|
|
id->num, id->mtd_id);
|
|
debug("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
|
|
|
|
|
|
/* parse partitions */
|
|
num_parts = 0;
|
|
|
|
offset = 0;
|
|
if ((dev = device_find(id->type, id->num)) != NULL) {
|
|
/* if device already exists start at the end of the last partition */
|
|
part = list_entry(dev->parts.prev, struct part_info, link);
|
|
offset = part->offset + part->size;
|
|
}
|
|
|
|
while (p && (*p != '\0') && (*p != ';')) {
|
|
err = 1;
|
|
if ((part_parse(p, &p, &part) != 0) || (!part))
|
|
break;
|
|
|
|
/* calculate offset when not specified */
|
|
if (part->offset == OFFSET_NOT_SPECIFIED)
|
|
part->offset = offset;
|
|
else
|
|
offset = part->offset;
|
|
|
|
/* verify alignment and size */
|
|
if (part_validate(id, part) != 0)
|
|
break;
|
|
|
|
offset += part->size;
|
|
|
|
/* partition is ok, add it to the list */
|
|
list_add_tail(&part->link, &tmp_list);
|
|
num_parts++;
|
|
err = 0;
|
|
}
|
|
if (err == 1) {
|
|
part_delall(&tmp_list);
|
|
return 1;
|
|
}
|
|
|
|
if (num_parts == 0) {
|
|
printf("no partitions for device %s%d (%s)\n",
|
|
MTD_DEV_TYPE(id->type), id->num, id->mtd_id);
|
|
return 1;
|
|
}
|
|
|
|
debug("\ntotal partitions: %d\n", num_parts);
|
|
|
|
/* check for next device presence */
|
|
if (p) {
|
|
if (*p == ';') {
|
|
if (ret)
|
|
*ret = ++p;
|
|
} else if (*p == '\0') {
|
|
if (ret)
|
|
*ret = p;
|
|
} else {
|
|
printf("unexpected character '%c' at the end of device\n", *p);
|
|
if (ret)
|
|
*ret = NULL;
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/* allocate memory for mtd_device structure */
|
|
if ((dev = (struct mtd_device *)malloc(sizeof(struct mtd_device))) == NULL) {
|
|
printf("out of memory\n");
|
|
return 1;
|
|
}
|
|
memset(dev, 0, sizeof(struct mtd_device));
|
|
dev->id = id;
|
|
dev->num_parts = 0; /* part_sort_add increments num_parts */
|
|
INIT_LIST_HEAD(&dev->parts);
|
|
INIT_LIST_HEAD(&dev->link);
|
|
|
|
/* move partitions from tmp_list to dev->parts */
|
|
list_for_each_safe(entry, n, &tmp_list) {
|
|
part = list_entry(entry, struct part_info, link);
|
|
list_del(entry);
|
|
if (part_sort_add(dev, part) != 0) {
|
|
device_del(dev);
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
*retdev = dev;
|
|
|
|
debug("===\n\n");
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Initialize global device list.
|
|
*
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int mtd_devices_init(void)
|
|
{
|
|
last_parts[0] = '\0';
|
|
current_mtd_dev = NULL;
|
|
current_save();
|
|
|
|
return device_delall(&devices);
|
|
}
|
|
|
|
/*
|
|
* Search global mtdids list and find id of requested type and number.
|
|
*
|
|
* @return pointer to the id if it exists, NULL otherwise
|
|
*/
|
|
static struct mtdids* id_find(u8 type, u8 num)
|
|
{
|
|
struct list_head *entry;
|
|
struct mtdids *id;
|
|
|
|
list_for_each(entry, &mtdids) {
|
|
id = list_entry(entry, struct mtdids, link);
|
|
|
|
if ((id->type == type) && (id->num == num))
|
|
return id;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Search global mtdids list and find id of a requested mtd_id.
|
|
*
|
|
* Note: first argument is not null terminated.
|
|
*
|
|
* @param mtd_id string containing requested mtd_id
|
|
* @param mtd_id_len length of supplied mtd_id
|
|
* @return pointer to the id if it exists, NULL otherwise
|
|
*/
|
|
static struct mtdids* id_find_by_mtd_id(const char *mtd_id, unsigned int mtd_id_len)
|
|
{
|
|
struct list_head *entry;
|
|
struct mtdids *id;
|
|
|
|
debug("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
|
|
mtd_id_len, mtd_id, mtd_id_len);
|
|
|
|
list_for_each(entry, &mtdids) {
|
|
id = list_entry(entry, struct mtdids, link);
|
|
|
|
debug("entry: '%s' (len = %d)\n",
|
|
id->mtd_id, strlen(id->mtd_id));
|
|
|
|
if (mtd_id_len != strlen(id->mtd_id))
|
|
continue;
|
|
if (strncmp(id->mtd_id, mtd_id, mtd_id_len) == 0)
|
|
return id;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* Parse device id string <dev-id> := 'nand'|'nor'|'onenand'<dev-num>,
|
|
* return device type and number.
|
|
*
|
|
* @param id string describing device id
|
|
* @param ret_id output pointer to next char after parse completes (output)
|
|
* @param dev_type parsed device type (output)
|
|
* @param dev_num parsed device number (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type, u8 *dev_num)
|
|
{
|
|
const char *p = id;
|
|
|
|
*dev_type = 0;
|
|
if (strncmp(p, "nand", 4) == 0) {
|
|
*dev_type = MTD_DEV_TYPE_NAND;
|
|
p += 4;
|
|
} else if (strncmp(p, "nor", 3) == 0) {
|
|
*dev_type = MTD_DEV_TYPE_NOR;
|
|
p += 3;
|
|
} else if (strncmp(p, "onenand", 7) == 0) {
|
|
*dev_type = MTD_DEV_TYPE_ONENAND;
|
|
p += 7;
|
|
} else {
|
|
printf("incorrect device type in %s\n", id);
|
|
return 1;
|
|
}
|
|
|
|
if (!isdigit(*p)) {
|
|
printf("incorrect device number in %s\n", id);
|
|
return 1;
|
|
}
|
|
|
|
*dev_num = simple_strtoul(p, (char **)&p, 0);
|
|
if (ret_id)
|
|
*ret_id = p;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Process all devices and generate corresponding mtdparts string describing
|
|
* all partitions on all devices.
|
|
*
|
|
* @param buf output buffer holding generated mtdparts string (output)
|
|
* @param buflen buffer size
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int generate_mtdparts(char *buf, u32 buflen)
|
|
{
|
|
struct list_head *pentry, *dentry;
|
|
struct mtd_device *dev;
|
|
struct part_info *part, *prev_part;
|
|
char *p = buf;
|
|
char tmpbuf[32];
|
|
u32 size, offset, len, part_cnt;
|
|
u32 maxlen = buflen - 1;
|
|
|
|
debug("--- generate_mtdparts ---\n");
|
|
|
|
if (list_empty(&devices)) {
|
|
buf[0] = '\0';
|
|
return 0;
|
|
}
|
|
|
|
sprintf(p, "mtdparts=");
|
|
p += 9;
|
|
|
|
list_for_each(dentry, &devices) {
|
|
dev = list_entry(dentry, struct mtd_device, link);
|
|
|
|
/* copy mtd_id */
|
|
len = strlen(dev->id->mtd_id) + 1;
|
|
if (len > maxlen)
|
|
goto cleanup;
|
|
memcpy(p, dev->id->mtd_id, len - 1);
|
|
p += len - 1;
|
|
*(p++) = ':';
|
|
maxlen -= len;
|
|
|
|
/* format partitions */
|
|
prev_part = NULL;
|
|
part_cnt = 0;
|
|
list_for_each(pentry, &dev->parts) {
|
|
part = list_entry(pentry, struct part_info, link);
|
|
size = part->size;
|
|
offset = part->offset;
|
|
part_cnt++;
|
|
|
|
/* partition size */
|
|
memsize_format(tmpbuf, size);
|
|
len = strlen(tmpbuf);
|
|
if (len > maxlen)
|
|
goto cleanup;
|
|
memcpy(p, tmpbuf, len);
|
|
p += len;
|
|
maxlen -= len;
|
|
|
|
|
|
/* add offset only when there is a gap between
|
|
* partitions */
|
|
if ((!prev_part && (offset != 0)) ||
|
|
(prev_part && ((prev_part->offset + prev_part->size) != part->offset))) {
|
|
|
|
memsize_format(tmpbuf, offset);
|
|
len = strlen(tmpbuf) + 1;
|
|
if (len > maxlen)
|
|
goto cleanup;
|
|
*(p++) = '@';
|
|
memcpy(p, tmpbuf, len - 1);
|
|
p += len - 1;
|
|
maxlen -= len;
|
|
}
|
|
|
|
/* copy name only if user supplied */
|
|
if(!part->auto_name) {
|
|
len = strlen(part->name) + 2;
|
|
if (len > maxlen)
|
|
goto cleanup;
|
|
|
|
*(p++) = '(';
|
|
memcpy(p, part->name, len - 2);
|
|
p += len - 2;
|
|
*(p++) = ')';
|
|
maxlen -= len;
|
|
}
|
|
|
|
/* ro mask flag */
|
|
if (part->mask_flags && MTD_WRITEABLE_CMD) {
|
|
len = 2;
|
|
if (len > maxlen)
|
|
goto cleanup;
|
|
*(p++) = 'r';
|
|
*(p++) = 'o';
|
|
maxlen -= 2;
|
|
}
|
|
|
|
/* print ',' separator if there are other partitions
|
|
* following */
|
|
if (dev->num_parts > part_cnt) {
|
|
if (1 > maxlen)
|
|
goto cleanup;
|
|
*(p++) = ',';
|
|
maxlen--;
|
|
}
|
|
prev_part = part;
|
|
}
|
|
/* print ';' separator if there are other devices following */
|
|
if (dentry->next != &devices) {
|
|
if (1 > maxlen)
|
|
goto cleanup;
|
|
*(p++) = ';';
|
|
maxlen--;
|
|
}
|
|
}
|
|
|
|
/* we still have at least one char left, as we decremented maxlen at
|
|
* the begining */
|
|
*p = '\0';
|
|
|
|
return 0;
|
|
|
|
cleanup:
|
|
last_parts[0] = '\0';
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
* Call generate_mtdparts to process all devices and generate corresponding
|
|
* mtdparts string, save it in mtdparts environment variable.
|
|
*
|
|
* @param buf output buffer holding generated mtdparts string (output)
|
|
* @param buflen buffer size
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int generate_mtdparts_save(char *buf, u32 buflen)
|
|
{
|
|
int ret;
|
|
|
|
ret = generate_mtdparts(buf, buflen);
|
|
|
|
if ((buf[0] != '\0') && (ret == 0))
|
|
setenv("mtdparts", buf);
|
|
else
|
|
setenv("mtdparts", NULL);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#if defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES)
|
|
/**
|
|
* Get the net size (w/o bad blocks) of the given partition.
|
|
*
|
|
* @param mtd the mtd info
|
|
* @param part the partition
|
|
* @return the calculated net size of this partition
|
|
*/
|
|
static uint64_t net_part_size(struct mtd_info *mtd, struct part_info *part)
|
|
{
|
|
uint64_t i, net_size = 0;
|
|
|
|
if (!mtd->block_isbad)
|
|
return part->size;
|
|
|
|
for (i = 0; i < part->size; i += mtd->erasesize) {
|
|
if (!mtd->block_isbad(mtd, part->offset + i))
|
|
net_size += mtd->erasesize;
|
|
}
|
|
|
|
return net_size;
|
|
}
|
|
#endif
|
|
|
|
static void print_partition_table(void)
|
|
{
|
|
struct list_head *dentry, *pentry;
|
|
struct part_info *part;
|
|
struct mtd_device *dev;
|
|
int part_num;
|
|
|
|
list_for_each(dentry, &devices) {
|
|
dev = list_entry(dentry, struct mtd_device, link);
|
|
/* list partitions for given device */
|
|
part_num = 0;
|
|
#if defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES)
|
|
struct mtd_info *mtd;
|
|
|
|
if (get_mtd_info(dev->id->type, dev->id->num, &mtd))
|
|
return;
|
|
|
|
printf("\ndevice %s%d <%s>, # parts = %d\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num,
|
|
dev->id->mtd_id, dev->num_parts);
|
|
printf(" #: name\t\tsize\t\tnet size\toffset\t\tmask_flags\n");
|
|
|
|
list_for_each(pentry, &dev->parts) {
|
|
u32 net_size;
|
|
char *size_note;
|
|
|
|
part = list_entry(pentry, struct part_info, link);
|
|
net_size = net_part_size(mtd, part);
|
|
size_note = part->size == net_size ? " " : " (!)";
|
|
printf("%2d: %-20s0x%08x\t0x%08x%s\t0x%08x\t%d\n",
|
|
part_num, part->name, part->size,
|
|
net_size, size_note, part->offset,
|
|
part->mask_flags);
|
|
#else /* !defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */
|
|
printf("\ndevice %s%d <%s>, # parts = %d\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num,
|
|
dev->id->mtd_id, dev->num_parts);
|
|
printf(" #: name\t\tsize\t\toffset\t\tmask_flags\n");
|
|
|
|
list_for_each(pentry, &dev->parts) {
|
|
part = list_entry(pentry, struct part_info, link);
|
|
printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
|
|
part_num, part->name, part->size,
|
|
part->offset, part->mask_flags);
|
|
#endif /* defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */
|
|
part_num++;
|
|
}
|
|
}
|
|
|
|
if (list_empty(&devices))
|
|
printf("no partitions defined\n");
|
|
}
|
|
|
|
/**
|
|
* Format and print out a partition list for each device from global device
|
|
* list.
|
|
*/
|
|
static void list_partitions(void)
|
|
{
|
|
struct part_info *part;
|
|
|
|
debug("\n---list_partitions---\n");
|
|
print_partition_table();
|
|
|
|
/* current_mtd_dev is not NULL only when we have non empty device list */
|
|
if (current_mtd_dev) {
|
|
part = mtd_part_info(current_mtd_dev, current_mtd_partnum);
|
|
if (part) {
|
|
printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
|
|
MTD_DEV_TYPE(current_mtd_dev->id->type),
|
|
current_mtd_dev->id->num, current_mtd_partnum,
|
|
part->name, part->size, part->offset);
|
|
} else {
|
|
printf("could not get current partition info\n\n");
|
|
}
|
|
}
|
|
|
|
printf("\ndefaults:\n");
|
|
printf("mtdids : %s\n",
|
|
mtdids_default ? mtdids_default : "none");
|
|
/*
|
|
* Using printf() here results in printbuffer overflow
|
|
* if default mtdparts string is greater than console
|
|
* printbuffer. Use puts() to prevent system crashes.
|
|
*/
|
|
puts("mtdparts: ");
|
|
puts(mtdparts_default ? mtdparts_default : "none");
|
|
puts("\n");
|
|
}
|
|
|
|
/**
|
|
* Given partition identifier in form of <dev_type><dev_num>,<part_num> find
|
|
* corresponding device and verify partition number.
|
|
*
|
|
* @param id string describing device and partition or partition name
|
|
* @param dev pointer to the requested device (output)
|
|
* @param part_num verified partition number (output)
|
|
* @param part pointer to requested partition (output)
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int find_dev_and_part(const char *id, struct mtd_device **dev,
|
|
u8 *part_num, struct part_info **part)
|
|
{
|
|
struct list_head *dentry, *pentry;
|
|
u8 type, dnum, pnum;
|
|
const char *p;
|
|
|
|
debug("--- find_dev_and_part ---\nid = %s\n", id);
|
|
|
|
list_for_each(dentry, &devices) {
|
|
*part_num = 0;
|
|
*dev = list_entry(dentry, struct mtd_device, link);
|
|
list_for_each(pentry, &(*dev)->parts) {
|
|
*part = list_entry(pentry, struct part_info, link);
|
|
if (strcmp((*part)->name, id) == 0)
|
|
return 0;
|
|
(*part_num)++;
|
|
}
|
|
}
|
|
|
|
p = id;
|
|
*dev = NULL;
|
|
*part = NULL;
|
|
*part_num = 0;
|
|
|
|
if (mtd_id_parse(p, &p, &type, &dnum) != 0)
|
|
return 1;
|
|
|
|
if ((*p++ != ',') || (*p == '\0')) {
|
|
printf("no partition number specified\n");
|
|
return 1;
|
|
}
|
|
pnum = simple_strtoul(p, (char **)&p, 0);
|
|
if (*p != '\0') {
|
|
printf("unexpected trailing character '%c'\n", *p);
|
|
return 1;
|
|
}
|
|
|
|
if ((*dev = device_find(type, dnum)) == NULL) {
|
|
printf("no such device %s%d\n", MTD_DEV_TYPE(type), dnum);
|
|
return 1;
|
|
}
|
|
|
|
if ((*part = mtd_part_info(*dev, pnum)) == NULL) {
|
|
printf("no such partition\n");
|
|
*dev = NULL;
|
|
return 1;
|
|
}
|
|
|
|
*part_num = pnum;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Find and delete partition. For partition id format see find_dev_and_part().
|
|
*
|
|
* @param id string describing device and partition
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int delete_partition(const char *id)
|
|
{
|
|
u8 pnum;
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
|
|
if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
|
|
|
|
debug("delete_partition: device = %s%d, partition %d = (%s) 0x%08x@0x%08x\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
|
|
part->name, part->size, part->offset);
|
|
|
|
if (part_del(dev, part) != 0)
|
|
return 1;
|
|
|
|
if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
|
|
printf("generated mtdparts too long, reseting to null\n");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
printf("partition %s not found\n", id);
|
|
return 1;
|
|
}
|
|
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
/**
|
|
* Increase the size of the given partition so that it's net size is at least
|
|
* as large as the size member and such that the next partition would start on a
|
|
* good block if it were adjacent to this partition.
|
|
*
|
|
* @param mtd the mtd device
|
|
* @param part the partition
|
|
* @param next_offset pointer to the offset of the next partition after this
|
|
* partition's size has been modified (output)
|
|
*/
|
|
static void spread_partition(struct mtd_info *mtd, struct part_info *part,
|
|
uint64_t *next_offset)
|
|
{
|
|
uint64_t net_size, padding_size = 0;
|
|
int truncated;
|
|
|
|
mtd_get_len_incl_bad(mtd, part->offset, part->size, &net_size,
|
|
&truncated);
|
|
|
|
/*
|
|
* Absorb bad blocks immediately following this
|
|
* partition also into the partition, such that
|
|
* the next partition starts with a good block.
|
|
*/
|
|
if (!truncated) {
|
|
mtd_get_len_incl_bad(mtd, part->offset + net_size,
|
|
mtd->erasesize, &padding_size, &truncated);
|
|
if (truncated)
|
|
padding_size = 0;
|
|
else
|
|
padding_size -= mtd->erasesize;
|
|
}
|
|
|
|
if (truncated) {
|
|
printf("truncated partition %s to %lld bytes\n", part->name,
|
|
(uint64_t) net_size + padding_size);
|
|
}
|
|
|
|
part->size = net_size + padding_size;
|
|
*next_offset = part->offset + part->size;
|
|
}
|
|
|
|
/**
|
|
* Adjust all of the partition sizes, such that all partitions are at least
|
|
* as big as their mtdparts environment variable sizes and they each start
|
|
* on a good block.
|
|
*
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int spread_partitions(void)
|
|
{
|
|
struct list_head *dentry, *pentry;
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
struct mtd_info *mtd;
|
|
int part_num;
|
|
uint64_t cur_offs;
|
|
|
|
list_for_each(dentry, &devices) {
|
|
dev = list_entry(dentry, struct mtd_device, link);
|
|
|
|
if (get_mtd_info(dev->id->type, dev->id->num, &mtd))
|
|
return 1;
|
|
|
|
part_num = 0;
|
|
cur_offs = 0;
|
|
list_for_each(pentry, &dev->parts) {
|
|
part = list_entry(pentry, struct part_info, link);
|
|
|
|
debug("spread_partitions: device = %s%d, partition %d ="
|
|
" (%s) 0x%08x@0x%08x\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num,
|
|
part_num, part->name, part->size,
|
|
part->offset);
|
|
|
|
if (cur_offs > part->offset)
|
|
part->offset = cur_offs;
|
|
|
|
spread_partition(mtd, part, &cur_offs);
|
|
|
|
part_num++;
|
|
}
|
|
}
|
|
|
|
index_partitions();
|
|
|
|
if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
|
|
printf("generated mtdparts too long, reseting to null\n");
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_CMD_MTDPARTS_SPREAD */
|
|
|
|
/**
|
|
* Accept character string describing mtd partitions and call device_parse()
|
|
* for each entry. Add created devices to the global devices list.
|
|
*
|
|
* @param mtdparts string specifing mtd partitions
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int parse_mtdparts(const char *const mtdparts)
|
|
{
|
|
const char *p = mtdparts;
|
|
struct mtd_device *dev;
|
|
int err = 1;
|
|
|
|
debug("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
|
|
|
|
/* delete all devices and partitions */
|
|
if (mtd_devices_init() != 0) {
|
|
printf("could not initialise device list\n");
|
|
return err;
|
|
}
|
|
|
|
/* re-read 'mtdparts' variable, mtd_devices_init may be updating env */
|
|
p = getenv("mtdparts");
|
|
|
|
if (strncmp(p, "mtdparts=", 9) != 0) {
|
|
printf("mtdparts variable doesn't start with 'mtdparts='\n");
|
|
return err;
|
|
}
|
|
p += 9;
|
|
|
|
while (p && (*p != '\0')) {
|
|
err = 1;
|
|
if ((device_parse(p, &p, &dev) != 0) || (!dev))
|
|
break;
|
|
|
|
debug("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
|
|
dev->id->num, dev->id->mtd_id);
|
|
|
|
/* check if parsed device is already on the list */
|
|
if (device_find(dev->id->type, dev->id->num) != NULL) {
|
|
printf("device %s%d redefined, please correct mtdparts variable\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num);
|
|
break;
|
|
}
|
|
|
|
list_add_tail(&dev->link, &devices);
|
|
err = 0;
|
|
}
|
|
if (err == 1) {
|
|
device_delall(&devices);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Parse provided string describing mtdids mapping (see file header for mtdids
|
|
* variable format). Allocate memory for each entry and add all found entries
|
|
* to the global mtdids list.
|
|
*
|
|
* @param ids mapping string
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
static int parse_mtdids(const char *const ids)
|
|
{
|
|
const char *p = ids;
|
|
const char *mtd_id;
|
|
int mtd_id_len;
|
|
struct mtdids *id;
|
|
struct list_head *entry, *n;
|
|
struct mtdids *id_tmp;
|
|
u8 type, num;
|
|
u32 size;
|
|
int ret = 1;
|
|
|
|
debug("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
|
|
|
|
/* clean global mtdids list */
|
|
list_for_each_safe(entry, n, &mtdids) {
|
|
id_tmp = list_entry(entry, struct mtdids, link);
|
|
debug("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
|
|
list_del(entry);
|
|
free(id_tmp);
|
|
}
|
|
last_ids[0] = '\0';
|
|
INIT_LIST_HEAD(&mtdids);
|
|
|
|
while(p && (*p != '\0')) {
|
|
|
|
ret = 1;
|
|
/* parse 'nor'|'nand'|'onenand'<dev-num> */
|
|
if (mtd_id_parse(p, &p, &type, &num) != 0)
|
|
break;
|
|
|
|
if (*p != '=') {
|
|
printf("mtdids: incorrect <dev-num>\n");
|
|
break;
|
|
}
|
|
p++;
|
|
|
|
/* check if requested device exists */
|
|
if (mtd_device_validate(type, num, &size) != 0)
|
|
return 1;
|
|
|
|
/* locate <mtd-id> */
|
|
mtd_id = p;
|
|
if ((p = strchr(mtd_id, ',')) != NULL) {
|
|
mtd_id_len = p - mtd_id + 1;
|
|
p++;
|
|
} else {
|
|
mtd_id_len = strlen(mtd_id) + 1;
|
|
}
|
|
if (mtd_id_len == 0) {
|
|
printf("mtdids: no <mtd-id> identifier\n");
|
|
break;
|
|
}
|
|
|
|
/* check if this id is already on the list */
|
|
int double_entry = 0;
|
|
list_for_each(entry, &mtdids) {
|
|
id_tmp = list_entry(entry, struct mtdids, link);
|
|
if ((id_tmp->type == type) && (id_tmp->num == num)) {
|
|
double_entry = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (double_entry) {
|
|
printf("device id %s%d redefined, please correct mtdids variable\n",
|
|
MTD_DEV_TYPE(type), num);
|
|
break;
|
|
}
|
|
|
|
/* allocate mtdids structure */
|
|
if (!(id = (struct mtdids *)malloc(sizeof(struct mtdids) + mtd_id_len))) {
|
|
printf("out of memory\n");
|
|
break;
|
|
}
|
|
memset(id, 0, sizeof(struct mtdids) + mtd_id_len);
|
|
id->num = num;
|
|
id->type = type;
|
|
id->size = size;
|
|
id->mtd_id = (char *)(id + 1);
|
|
strncpy(id->mtd_id, mtd_id, mtd_id_len - 1);
|
|
id->mtd_id[mtd_id_len - 1] = '\0';
|
|
INIT_LIST_HEAD(&id->link);
|
|
|
|
debug("+ id %s%d\t%16d bytes\t%s\n",
|
|
MTD_DEV_TYPE(id->type), id->num,
|
|
id->size, id->mtd_id);
|
|
|
|
list_add_tail(&id->link, &mtdids);
|
|
ret = 0;
|
|
}
|
|
if (ret == 1) {
|
|
/* clean mtdids list and free allocated memory */
|
|
list_for_each_safe(entry, n, &mtdids) {
|
|
id_tmp = list_entry(entry, struct mtdids, link);
|
|
list_del(entry);
|
|
free(id_tmp);
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Parse and initialize global mtdids mapping and create global
|
|
* device/partition list.
|
|
*
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int mtdparts_init(void)
|
|
{
|
|
static int initialized = 0;
|
|
const char *ids, *parts;
|
|
const char *current_partition;
|
|
int ids_changed;
|
|
char tmp_ep[PARTITION_MAXLEN];
|
|
|
|
debug("\n---mtdparts_init---\n");
|
|
if (!initialized) {
|
|
INIT_LIST_HEAD(&mtdids);
|
|
INIT_LIST_HEAD(&devices);
|
|
memset(last_ids, 0, MTDIDS_MAXLEN);
|
|
memset(last_parts, 0, MTDPARTS_MAXLEN);
|
|
memset(last_partition, 0, PARTITION_MAXLEN);
|
|
initialized = 1;
|
|
}
|
|
|
|
/* get variables */
|
|
ids = getenv("mtdids");
|
|
parts = getenv("mtdparts");
|
|
current_partition = getenv("partition");
|
|
|
|
/* save it for later parsing, cannot rely on current partition pointer
|
|
* as 'partition' variable may be updated during init */
|
|
tmp_ep[0] = '\0';
|
|
if (current_partition)
|
|
strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
|
|
|
|
debug("last_ids : %s\n", last_ids);
|
|
debug("env_ids : %s\n", ids);
|
|
debug("last_parts: %s\n", last_parts);
|
|
debug("env_parts : %s\n\n", parts);
|
|
|
|
debug("last_partition : %s\n", last_partition);
|
|
debug("env_partition : %s\n", current_partition);
|
|
|
|
/* if mtdids varible is empty try to use defaults */
|
|
if (!ids) {
|
|
if (mtdids_default) {
|
|
debug("mtdids variable not defined, using default\n");
|
|
ids = mtdids_default;
|
|
setenv("mtdids", (char *)ids);
|
|
} else {
|
|
printf("mtdids not defined, no default present\n");
|
|
return 1;
|
|
}
|
|
}
|
|
if (strlen(ids) > MTDIDS_MAXLEN - 1) {
|
|
printf("mtdids too long (> %d)\n", MTDIDS_MAXLEN);
|
|
return 1;
|
|
}
|
|
|
|
/* do no try to use defaults when mtdparts variable is not defined,
|
|
* just check the length */
|
|
if (!parts)
|
|
printf("mtdparts variable not set, see 'help mtdparts'\n");
|
|
|
|
if (parts && (strlen(parts) > MTDPARTS_MAXLEN - 1)) {
|
|
printf("mtdparts too long (> %d)\n", MTDPARTS_MAXLEN);
|
|
return 1;
|
|
}
|
|
|
|
/* check if we have already parsed those mtdids */
|
|
if ((last_ids[0] != '\0') && (strcmp(last_ids, ids) == 0)) {
|
|
ids_changed = 0;
|
|
} else {
|
|
ids_changed = 1;
|
|
|
|
if (parse_mtdids(ids) != 0) {
|
|
mtd_devices_init();
|
|
return 1;
|
|
}
|
|
|
|
/* ok it's good, save new ids */
|
|
strncpy(last_ids, ids, MTDIDS_MAXLEN);
|
|
}
|
|
|
|
/* parse partitions if either mtdparts or mtdids were updated */
|
|
if (parts && ((last_parts[0] == '\0') || ((strcmp(last_parts, parts) != 0)) || ids_changed)) {
|
|
if (parse_mtdparts(parts) != 0)
|
|
return 1;
|
|
|
|
if (list_empty(&devices)) {
|
|
printf("mtdparts_init: no valid partitions\n");
|
|
return 1;
|
|
}
|
|
|
|
/* ok it's good, save new parts */
|
|
strncpy(last_parts, parts, MTDPARTS_MAXLEN);
|
|
|
|
/* reset first partition from first dev from the list as current */
|
|
current_mtd_dev = list_entry(devices.next, struct mtd_device, link);
|
|
current_mtd_partnum = 0;
|
|
current_save();
|
|
|
|
debug("mtdparts_init: current_mtd_dev = %s%d, current_mtd_partnum = %d\n",
|
|
MTD_DEV_TYPE(current_mtd_dev->id->type),
|
|
current_mtd_dev->id->num, current_mtd_partnum);
|
|
}
|
|
|
|
/* mtdparts variable was reset to NULL, delete all devices/partitions */
|
|
if (!parts && (last_parts[0] != '\0'))
|
|
return mtd_devices_init();
|
|
|
|
/* do not process current partition if mtdparts variable is null */
|
|
if (!parts)
|
|
return 0;
|
|
|
|
/* is current partition set in environment? if so, use it */
|
|
if ((tmp_ep[0] != '\0') && (strcmp(tmp_ep, last_partition) != 0)) {
|
|
struct part_info *p;
|
|
struct mtd_device *cdev;
|
|
u8 pnum;
|
|
|
|
debug("--- getting current partition: %s\n", tmp_ep);
|
|
|
|
if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
|
|
current_mtd_dev = cdev;
|
|
current_mtd_partnum = pnum;
|
|
current_save();
|
|
}
|
|
} else if (getenv("partition") == NULL) {
|
|
debug("no partition variable set, setting...\n");
|
|
current_save();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Return pointer to the partition of a requested number from a requested
|
|
* device.
|
|
*
|
|
* @param dev device that is to be searched for a partition
|
|
* @param part_num requested partition number
|
|
* @return pointer to the part_info, NULL otherwise
|
|
*/
|
|
static struct part_info* mtd_part_info(struct mtd_device *dev, unsigned int part_num)
|
|
{
|
|
struct list_head *entry;
|
|
struct part_info *part;
|
|
int num;
|
|
|
|
if (!dev)
|
|
return NULL;
|
|
|
|
debug("\n--- mtd_part_info: partition number %d for device %s%d (%s)\n",
|
|
part_num, MTD_DEV_TYPE(dev->id->type),
|
|
dev->id->num, dev->id->mtd_id);
|
|
|
|
if (part_num >= dev->num_parts) {
|
|
printf("invalid partition number %d for device %s%d (%s)\n",
|
|
part_num, MTD_DEV_TYPE(dev->id->type),
|
|
dev->id->num, dev->id->mtd_id);
|
|
return NULL;
|
|
}
|
|
|
|
/* locate partition number, return it */
|
|
num = 0;
|
|
list_for_each(entry, &dev->parts) {
|
|
part = list_entry(entry, struct part_info, link);
|
|
|
|
if (part_num == num++) {
|
|
return part;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/***************************************************/
|
|
/* U-boot commands */
|
|
/***************************************************/
|
|
/* command line only */
|
|
/**
|
|
* Routine implementing u-boot chpart command. Sets new current partition based
|
|
* on the user supplied partition id. For partition id format see find_dev_and_part().
|
|
*
|
|
* @param cmdtp command internal data
|
|
* @param flag command flag
|
|
* @param argc number of arguments supplied to the command
|
|
* @param argv arguments list
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
/* command line only */
|
|
struct mtd_device *dev;
|
|
struct part_info *part;
|
|
u8 pnum;
|
|
|
|
if (mtdparts_init() !=0)
|
|
return 1;
|
|
|
|
if (argc < 2) {
|
|
printf("no partition id specified\n");
|
|
return 1;
|
|
}
|
|
|
|
if (find_dev_and_part(argv[1], &dev, &pnum, &part) != 0)
|
|
return 1;
|
|
|
|
current_mtd_dev = dev;
|
|
current_mtd_partnum = pnum;
|
|
current_save();
|
|
|
|
printf("partition changed to %s%d,%d\n",
|
|
MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Routine implementing u-boot mtdparts command. Initialize/update default global
|
|
* partition list and process user partition request (list, add, del).
|
|
*
|
|
* @param cmdtp command internal data
|
|
* @param flag command flag
|
|
* @param argc number of arguments supplied to the command
|
|
* @param argv arguments list
|
|
* @return 0 on success, 1 otherwise
|
|
*/
|
|
int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
|
|
{
|
|
if (argc == 2) {
|
|
if (strcmp(argv[1], "default") == 0) {
|
|
setenv("mtdids", (char *)mtdids_default);
|
|
setenv("mtdparts", (char *)mtdparts_default);
|
|
setenv("partition", NULL);
|
|
|
|
mtdparts_init();
|
|
return 0;
|
|
} else if (strcmp(argv[1], "delall") == 0) {
|
|
/* this may be the first run, initialize lists if needed */
|
|
mtdparts_init();
|
|
|
|
setenv("mtdparts", NULL);
|
|
|
|
/* mtd_devices_init() calls current_save() */
|
|
return mtd_devices_init();
|
|
}
|
|
}
|
|
|
|
/* make sure we are in sync with env variables */
|
|
if (mtdparts_init() != 0)
|
|
return 1;
|
|
|
|
if (argc == 1) {
|
|
list_partitions();
|
|
return 0;
|
|
}
|
|
|
|
/* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
|
|
if (((argc == 5) || (argc == 6)) && (strncmp(argv[1], "add", 3) == 0)) {
|
|
#define PART_ADD_DESC_MAXLEN 64
|
|
char tmpbuf[PART_ADD_DESC_MAXLEN];
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
struct mtd_info *mtd;
|
|
uint64_t next_offset;
|
|
#endif
|
|
u8 type, num, len;
|
|
struct mtd_device *dev;
|
|
struct mtd_device *dev_tmp;
|
|
struct mtdids *id;
|
|
struct part_info *p;
|
|
|
|
if (mtd_id_parse(argv[2], NULL, &type, &num) != 0)
|
|
return 1;
|
|
|
|
if ((id = id_find(type, num)) == NULL) {
|
|
printf("no such device %s defined in mtdids variable\n", argv[2]);
|
|
return 1;
|
|
}
|
|
|
|
len = strlen(id->mtd_id) + 1; /* 'mtd_id:' */
|
|
len += strlen(argv[3]); /* size@offset */
|
|
len += strlen(argv[4]) + 2; /* '(' name ')' */
|
|
if (argv[5] && (strlen(argv[5]) == 2))
|
|
len += 2; /* 'ro' */
|
|
|
|
if (len >= PART_ADD_DESC_MAXLEN) {
|
|
printf("too long partition description\n");
|
|
return 1;
|
|
}
|
|
sprintf(tmpbuf, "%s:%s(%s)%s",
|
|
id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
|
|
debug("add tmpbuf: %s\n", tmpbuf);
|
|
|
|
if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
|
|
return 1;
|
|
|
|
debug("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
|
|
dev->id->num, dev->id->mtd_id);
|
|
|
|
p = list_entry(dev->parts.next, struct part_info, link);
|
|
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
if (get_mtd_info(dev->id->type, dev->id->num, &mtd))
|
|
return 1;
|
|
|
|
if (!strcmp(&argv[1][3], ".spread")) {
|
|
spread_partition(mtd, p, &next_offset);
|
|
debug("increased %s to %d bytes\n", p->name, p->size);
|
|
}
|
|
#endif
|
|
|
|
dev_tmp = device_find(dev->id->type, dev->id->num);
|
|
if (dev_tmp == NULL) {
|
|
device_add(dev);
|
|
} else if (part_add(dev_tmp, p) != 0) {
|
|
/* merge new partition with existing ones*/
|
|
device_del(dev);
|
|
return 1;
|
|
}
|
|
|
|
if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
|
|
printf("generated mtdparts too long, reseting to null\n");
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* mtdparts del part-id */
|
|
if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
|
|
debug("del: part-id = %s\n", argv[2]);
|
|
|
|
return delete_partition(argv[2]);
|
|
}
|
|
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
if ((argc == 2) && (strcmp(argv[1], "spread") == 0))
|
|
return spread_partitions();
|
|
#endif /* CONFIG_CMD_MTDPARTS_SPREAD */
|
|
|
|
return CMD_RET_USAGE;
|
|
}
|
|
|
|
/***************************************************/
|
|
U_BOOT_CMD(
|
|
chpart, 2, 0, do_chpart,
|
|
"change active partition",
|
|
"part-id\n"
|
|
" - change active partition (e.g. part-id = nand0,1)"
|
|
);
|
|
|
|
U_BOOT_CMD(
|
|
mtdparts, 6, 0, do_mtdparts,
|
|
"define flash/nand partitions",
|
|
"\n"
|
|
" - list partition table\n"
|
|
"mtdparts delall\n"
|
|
" - delete all partitions\n"
|
|
"mtdparts del part-id\n"
|
|
" - delete partition (e.g. part-id = nand0,1)\n"
|
|
"mtdparts add <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
|
|
" - add partition\n"
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
"mtdparts add.spread <mtd-dev> <size>[@<offset>] [<name>] [ro]\n"
|
|
" - add partition, padding size by skipping bad blocks\n"
|
|
#endif
|
|
"mtdparts default\n"
|
|
" - reset partition table to defaults\n"
|
|
#if defined(CONFIG_CMD_MTDPARTS_SPREAD)
|
|
"mtdparts spread\n"
|
|
" - adjust the sizes of the partitions so they are\n"
|
|
" at least as big as the mtdparts variable specifies\n"
|
|
" and they each start on a good block\n\n"
|
|
#else
|
|
"\n"
|
|
#endif /* CONFIG_CMD_MTDPARTS_SPREAD */
|
|
"-----\n\n"
|
|
"this command uses three environment variables:\n\n"
|
|
"'partition' - keeps current partition identifier\n\n"
|
|
"partition := <part-id>\n"
|
|
"<part-id> := <dev-id>,part_num\n\n"
|
|
"'mtdids' - linux kernel mtd device id <-> u-boot device id mapping\n\n"
|
|
"mtdids=<idmap>[,<idmap>,...]\n\n"
|
|
"<idmap> := <dev-id>=<mtd-id>\n"
|
|
"<dev-id> := 'nand'|'nor'|'onenand'<dev-num>\n"
|
|
"<dev-num> := mtd device number, 0...\n"
|
|
"<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n\n"
|
|
"'mtdparts' - partition list\n\n"
|
|
"mtdparts=mtdparts=<mtd-def>[;<mtd-def>...]\n\n"
|
|
"<mtd-def> := <mtd-id>:<part-def>[,<part-def>...]\n"
|
|
"<mtd-id> := unique device tag used by linux kernel to find mtd device (mtd->name)\n"
|
|
"<part-def> := <size>[@<offset>][<name>][<ro-flag>]\n"
|
|
"<size> := standard linux memsize OR '-' to denote all remaining space\n"
|
|
"<offset> := partition start offset within the device\n"
|
|
"<name> := '(' NAME ')'\n"
|
|
"<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)"
|
|
);
|
|
/***************************************************/
|