* 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
+ * SPDX-License-Identifier: GPL-2.0+
*/
/*
#include <jffs2/load_kernel.h>
#include <linux/list.h>
#include <linux/ctype.h>
-#include <cramfs/cramfs_fs.h>
+#include <linux/err.h>
+#include <linux/mtd/mtd.h>
#if defined(CONFIG_CMD_NAND)
-#ifdef CONFIG_NAND_LEGACY
-#include <linux/mtd/nand_legacy.h>
-#else /* !CONFIG_NAND_LEGACY */
#include <linux/mtd/nand.h>
#include <nand.h>
-#endif /* !CONFIG_NAND_LEGACY */
#endif
#if defined(CONFIG_CMD_ONENAND)
-#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <onenand_uboot.h>
#endif
-/* enable/disable debugging messages */
-#define DEBUG_MTDPARTS
-#undef DEBUG_MTDPARTS
-
-#ifdef DEBUG_MTDPARTS
-# define DEBUGF(fmt, args...) printf(fmt ,##args)
-#else
-# define DEBUGF(fmt, args...)
-#endif
+DECLARE_GLOBAL_DATA_PTR;
/* special size referring to all the remaining space in a partition */
#define SIZE_REMAINING 0xFFFFFFFF
#if defined(MTDIDS_DEFAULT)
static const char *const mtdids_default = MTDIDS_DEFAULT;
#else
-#warning "MTDIDS_DEFAULT not defined!"
static const char *const mtdids_default = NULL;
#endif
#if defined(MTDPARTS_DEFAULT)
static const char *const mtdparts_default = MTDPARTS_DEFAULT;
#else
-#warning "MTDPARTS_DEFAULT not defined!"
static const char *const mtdparts_default = NULL;
#endif
extern void jffs2_free_cache(struct part_info *part);
/* mtdids mapping list, filled by parse_ids() */
-struct list_head mtdids;
+static struct list_head mtdids;
/* device/partition list, parse_cmdline() parses into here */
-struct list_head devices;
+static struct list_head devices;
/* current active device and partition number */
struct mtd_device *current_mtd_dev = NULL;
*/
static void index_partitions(void)
{
- char buf[16];
u16 mtddevnum;
struct part_info *part;
struct list_head *dentry;
struct mtd_device *dev;
- DEBUGF("--- index partitions ---\n");
+ debug("--- index partitions ---\n");
if (current_mtd_dev) {
mtddevnum = 0;
dev = list_entry(dentry, struct mtd_device, link);
if (dev == current_mtd_dev) {
mtddevnum += current_mtd_partnum;
- sprintf(buf, "%d", mtddevnum);
- setenv("mtddevnum", buf);
+ setenv_ulong("mtddevnum", mtddevnum);
break;
}
mtddevnum += dev->num_parts;
part = mtd_part_info(current_mtd_dev, current_mtd_partnum);
setenv("mtddevname", part->name);
- DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
+ debug("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
} else {
setenv("mtddevnum", NULL);
setenv("mtddevname", NULL);
- DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
+ debug("=> mtddevnum NULL\n=> mtddevname NULL\n");
}
}
{
char buf[16];
- DEBUGF("--- current_save ---\n");
+ debug("--- current_save ---\n");
if (current_mtd_dev) {
sprintf(buf, "%s%d,%d", MTD_DEV_TYPE(current_mtd_dev->id->type),
setenv("partition", buf);
strncpy(last_partition, buf, 16);
- DEBUGF("=> partition %s\n", buf);
+ debug("=> partition %s\n", buf);
} else {
setenv("partition", NULL);
last_partition[0] = '\0';
- DEBUGF("=> partition NULL\n");
+ debug("=> partition NULL\n");
}
index_partitions();
}
-/**
- * Performs sanity check for supplied NOR flash partition. Table of existing
- * NOR flash devices is searched and partition device is located. Alignment
- * with the granularity of NOR flash sectors 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_nor(struct mtdids *id, struct part_info *part)
-{
-#if defined(CONFIG_CMD_FLASH)
- /* info for FLASH chips */
- extern flash_info_t flash_info[];
- flash_info_t *flash;
- int offset_aligned;
- u32 end_offset, sector_size = 0;
- int i;
-
- flash = &flash_info[id->num];
-
- /* size of last sector */
- part->sector_size = flash->size -
- (flash->start[flash->sector_count-1] - flash->start[0]);
-
- offset_aligned = 0;
- for (i = 0; i < flash->sector_count; i++) {
- if ((flash->start[i] - flash->start[0]) == part->offset) {
- offset_aligned = 1;
- break;
- }
- }
- if (offset_aligned == 0) {
- printf("%s%d: partition (%s) start offset alignment incorrect\n",
- MTD_DEV_TYPE(id->type), id->num, part->name);
- return 1;
- }
-
- end_offset = part->offset + part->size;
- offset_aligned = 0;
- for (i = 0; i < flash->sector_count; i++) {
- if (i) {
- sector_size = flash->start[i] - flash->start[i-1];
- if (part->sector_size < sector_size)
- part->sector_size = sector_size;
- }
- if ((flash->start[i] - flash->start[0]) == end_offset)
- offset_aligned = 1;
- }
-
- if (offset_aligned || flash->size == end_offset)
- return 0;
-
- printf("%s%d: partition (%s) size alignment incorrect\n",
- MTD_DEV_TYPE(id->type), id->num, part->name);
-#endif
- return 1;
-}
/**
- * Performs sanity check for supplied NAND flash partition. Table of existing
- * NAND flash devices is searched and partition device is located. Alignment
- * with the granularity of nand erasesize is verified.
+ * Produce a mtd_info given a type and num.
*
- * @param id of the parent device
- * @param part partition to validate
- * @return 0 if partition is valid, 1 otherwise
+ * @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 part_validate_nand(struct mtdids *id, struct part_info *part)
+static int get_mtd_info(u8 type, u8 num, struct mtd_info **mtd)
{
-#if defined(CONFIG_CMD_NAND)
- /* info for NAND chips */
- nand_info_t *nand;
-
- nand = &nand_info[id->num];
-
- part->sector_size = nand->erasesize;
-
- if ((unsigned long)(part->offset) % nand->erasesize) {
- printf("%s%d: partition (%s) start offset alignment incorrect\n",
- MTD_DEV_TYPE(id->type), id->num, part->name);
- return 1;
- }
+ char mtd_dev[16];
- if (part->size % nand->erasesize) {
- printf("%s%d: partition (%s) size alignment incorrect\n",
- MTD_DEV_TYPE(id->type), id->num, part->name);
+ 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;
-#else
- return 1;
-#endif
}
/**
- * Performs sanity check for supplied OneNAND flash partition.
- * Table of existing OneNAND flash devices is searched and partition device
+ * 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_onenand(struct mtdids *id, struct part_info *part)
+static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
{
-#if defined(CONFIG_CMD_ONENAND)
- /* info for OneNAND chips */
- struct mtd_info *mtd;
+ struct mtd_info *mtd = NULL;
+ int i, j;
+ ulong start;
- mtd = &onenand_mtd;
+ if (get_mtd_info(id->type, id->num, &mtd))
+ return 1;
part->sector_size = mtd->erasesize;
- 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);
+ 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;
- }
- if (part->size % mtd->erasesize) {
+ 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);
+ MTD_DEV_TYPE(id->type), id->num, part->name);
return 1;
+
+ end_ok:
+ return 0;
}
return 0;
-#else
- return 1;
-#endif
}
return 1;
}
- if (id->type == MTD_DEV_TYPE_NAND)
- return part_validate_nand(id, part);
- else if (id->type == MTD_DEV_TYPE_NOR)
- return part_validate_nor(id, part);
- else if (id->type == MTD_DEV_TYPE_ONENAND)
- return part_validate_onenand(id, part);
- else
- DEBUGF("part_validate: invalid dev type\n");
-
- return 1;
+ /*
+ * Now we need to check if the partition starts and ends on
+ * sector (eraseblock) regions
+ */
+ return part_validate_eraseblock(id, part);
}
/**
}
}
-#ifdef CONFIG_NAND_LEGACY
- jffs2_free_cache(part);
-#endif
list_del(&part->link);
free(part);
dev->num_parts--;
list_for_each_safe(entry, n, head) {
part_tmp = list_entry(entry, struct part_info, link);
-#ifdef CONFIG_NAND_LEGACY
- jffs2_free_cache(part_tmp);
-#endif
list_del(entry);
free(part_tmp);
}
part->dev = dev;
if (list_empty(&dev->parts)) {
- DEBUGF("part_sort_add: list empty\n");
+ debug("part_sort_add: list empty\n");
list_add(&part->link, &dev->parts);
dev->num_parts++;
index_partitions();
/* fetch the partition size */
if (*p == '-') {
/* assign all remaining space to this partition */
- DEBUGF("'-': remaining size assigned\n");
+ debug("'-': remaining size assigned\n");
size = SIZE_REMAINING;
p++;
} else {
part->name[name_len - 1] = '\0';
INIT_LIST_HEAD(&part->link);
- DEBUGF("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
+ debug("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
part->name, part->size,
part->offset, part->mask_flags);
/**
* Check device number to be within valid range for given device type.
*
- * @param dev device to validate
+ * @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)
+static int mtd_device_validate(u8 type, u8 num, u32 *size)
{
- if (type == MTD_DEV_TYPE_NOR) {
-#if defined(CONFIG_CMD_FLASH)
- if (num < CONFIG_SYS_MAX_FLASH_BANKS) {
- extern flash_info_t flash_info[];
- *size = flash_info[num].size;
+ struct mtd_info *mtd = NULL;
- return 0;
- }
-
- printf("no such FLASH device: %s%d (valid range 0 ... %d\n",
- MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_FLASH_BANKS - 1);
-#else
- printf("support for FLASH devices not present\n");
-#endif
- } else if (type == MTD_DEV_TYPE_NAND) {
-#if defined(CONFIG_CMD_NAND)
- if (num < CONFIG_SYS_MAX_NAND_DEVICE) {
-#ifndef CONFIG_NAND_LEGACY
- *size = nand_info[num].size;
-#else
- extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
- *size = nand_dev_desc[num].totlen;
-#endif
- return 0;
- }
+ if (get_mtd_info(type, num, &mtd))
+ return 1;
- printf("no such NAND device: %s%d (valid range 0 ... %d)\n",
- MTD_DEV_TYPE(type), num, CONFIG_SYS_MAX_NAND_DEVICE - 1);
-#else
- printf("support for NAND devices not present\n");
-#endif
- } else if (type == MTD_DEV_TYPE_ONENAND) {
-#if defined(CONFIG_CMD_ONENAND)
- *size = onenand_mtd.size;
- return 0;
-#else
- printf("support for OneNAND devices not present\n");
-#endif
- } else
- printf("Unknown defice type %d\n", type);
+ *size = mtd->size;
- return 1;
+ return 0;
}
/**
* @param num device number
* @return NULL if requested device does not exist
*/
-static struct mtd_device* device_find(u8 type, u8 num)
+struct mtd_device *device_find(u8 type, u8 num)
{
struct list_head *entry;
struct mtd_device *dev_tmp;
struct mtdids *id;
const char *mtd_id;
unsigned int mtd_id_len;
- const char *p, *pend;
+ const char *p;
+ const char *pend;
LIST_HEAD(tmp_list);
struct list_head *entry, *n;
u16 num_parts;
u32 offset;
int err = 1;
- p = mtd_dev;
+ debug("===device_parse===\n");
+
+ assert(retdev);
*retdev = NULL;
- *ret = NULL;
- DEBUGF("===device_parse===\n");
+ if (ret)
+ *ret = NULL;
/* fetch <mtd-id> */
- mtd_id = p;
+ mtd_id = p = mtd_dev;
if (!(p = strchr(mtd_id, ':'))) {
printf("no <mtd-id> identifier\n");
return 1;
return 1;
}
- DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
+#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);
- pend = strchr(p, ';');
- DEBUGF("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
+ debug("parsing partitions %.*s\n", (pend ? pend - p : strlen(p)), p);
/* parse partitions */
return 1;
}
- DEBUGF("\ntotal partitions: %d\n", num_parts);
+ debug("\ntotal partitions: %d\n", num_parts);
/* check for next device presence */
if (p) {
if (*p == ';') {
- *ret = ++p;
+ if (ret)
+ *ret = ++p;
} else if (*p == '\0') {
- *ret = p;
+ if (ret)
+ *ret = p;
} else {
printf("unexpected character '%c' at the end of device\n", *p);
- *ret = NULL;
+ if (ret)
+ *ret = NULL;
return 1;
}
}
*retdev = dev;
- DEBUGF("===\n\n");
+ debug("===\n\n");
return 0;
}
struct list_head *entry;
struct mtdids *id;
- DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
+ 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);
- DEBUGF("entry: '%s' (len = %d)\n",
+ debug("entry: '%s' (len = %d)\n",
id->mtd_id, strlen(id->mtd_id));
if (mtd_id_len != strlen(id->mtd_id))
* @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)
+int mtd_id_parse(const char *id, const char **ret_id, u8 *dev_type,
+ u8 *dev_num)
{
const char *p = id;
u32 size, offset, len, part_cnt;
u32 maxlen = buflen - 1;
- DEBUGF("--- generate_mtdparts ---\n");
+ debug("--- generate_mtdparts ---\n");
if (list_empty(&devices)) {
buf[0] = '\0';
return ret;
}
+#if defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES)
/**
- * Format and print out a partition list for each device from global device
- * list.
+ * 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 void list_partitions(void)
+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 show_ecc_stats(struct mtd_device *dev)
+{
+ struct mtd_info *mtd;
+
+ if (get_mtd_info(dev->id->type, dev->id->num, &mtd))
+ return;
+
+ printf("ECC stats for device %s:\n", mtd->name);
+ printf(" corrected bit flips:\t%4u\n", mtd->ecc_stats.corrected);
+ printf(" uncorrectable errors:\t%4u\n", mtd->ecc_stats.failed);
+}
+
+static void print_partition_table(void)
{
struct list_head *dentry, *pentry;
struct part_info *part;
struct mtd_device *dev;
int part_num;
- DEBUGF("\n---list_partitions---\n");
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 partitions for given device */
- part_num = 0;
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++;
}
+ show_ecc_stats(dev);
}
+
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) {
}
printf("\ndefaults:\n");
- printf("mtdids : %s\n", mtdids_default);
- printf("mtdparts: %s\n", mtdparts_default);
+ 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");
}
/**
u8 type, dnum, pnum;
const char *p;
- DEBUGF("--- find_dev_and_part ---\nid = %s\n", id);
+ debug("--- find_dev_and_part ---\nid = %s\n", id);
list_for_each(dentry, &devices) {
*part_num = 0;
if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {
- DEBUGF("delete_partition: device = %s%d, partition %d = (%s) 0x%08lx@0x%08lx\n",
+ 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);
return 1;
if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
- printf("generated mtdparts too long, reseting to null\n");
+ printf("generated mtdparts too long, resetting to null\n");
return 1;
}
return 0;
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, resetting 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.
const char *p = mtdparts;
struct mtd_device *dev;
int err = 1;
+ char tmp_parts[MTDPARTS_MAXLEN];
- DEBUGF("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
+ debug("\n---parse_mtdparts---\nmtdparts = %s\n\n", p);
/* delete all devices and partitions */
if (mtd_devices_init() != 0) {
}
/* re-read 'mtdparts' variable, mtd_devices_init may be updating env */
- p = getenv("mtdparts");
+ if (gd->flags & GD_FLG_ENV_READY) {
+ p = getenv("mtdparts");
+ } else {
+ p = tmp_parts;
+ getenv_f("mtdparts", tmp_parts, MTDPARTS_MAXLEN);
+ }
if (strncmp(p, "mtdparts=", 9) != 0) {
printf("mtdparts variable doesn't start with 'mtdparts='\n");
if ((device_parse(p, &p, &dev) != 0) || (!dev))
break;
- DEBUGF("+ device: %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
+ 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 */
u32 size;
int ret = 1;
- DEBUGF("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
+ 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);
- DEBUGF("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
+ debug("mtdids del: %d %d\n", id_tmp->type, id_tmp->num);
list_del(entry);
free(id_tmp);
}
id->mtd_id[mtd_id_len - 1] = '\0';
INIT_LIST_HEAD(&id->link);
- DEBUGF("+ id %s%d\t%16d bytes\t%s\n",
+ debug("+ id %s%d\t%16d bytes\t%s\n",
MTD_DEV_TYPE(id->type), id->num,
id->size, id->mtd_id);
const char *current_partition;
int ids_changed;
char tmp_ep[PARTITION_MAXLEN];
+ char tmp_parts[MTDPARTS_MAXLEN];
- DEBUGF("\n---mtdparts_init---\n");
+ debug("\n---mtdparts_init---\n");
if (!initialized) {
INIT_LIST_HEAD(&mtdids);
INIT_LIST_HEAD(&devices);
/* get variables */
ids = getenv("mtdids");
- parts = getenv("mtdparts");
+ /*
+ * The mtdparts variable tends to be long. If we need to access it
+ * before the env is relocated, then we need to use our own stack
+ * buffer. gd->env_buf will be too small.
+ */
+ if (gd->flags & GD_FLG_ENV_READY) {
+ parts = getenv("mtdparts");
+ } else {
+ parts = tmp_parts;
+ getenv_f("mtdparts", tmp_parts, MTDPARTS_MAXLEN);
+ }
current_partition = getenv("partition");
/* save it for later parsing, cannot rely on current partition pointer
if (current_partition)
strncpy(tmp_ep, current_partition, PARTITION_MAXLEN);
- DEBUGF("last_ids : %s\n", last_ids);
- DEBUGF("env_ids : %s\n", ids);
- DEBUGF("last_parts: %s\n", last_parts);
- DEBUGF("env_parts : %s\n\n", parts);
+ 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);
- DEBUGF("last_partition : %s\n", last_partition);
- DEBUGF("env_partition : %s\n", current_partition);
+ 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) {
- DEBUGF("mtdids variable not defined, using default\n");
+ debug("mtdids variable not defined, using default\n");
ids = mtdids_default;
setenv("mtdids", (char *)ids);
} else {
current_mtd_partnum = 0;
current_save();
- DEBUGF("mtdparts_init: current_mtd_dev = %s%d, current_mtd_partnum = %d\n",
+ 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);
}
struct mtd_device *cdev;
u8 pnum;
- DEBUGF("--- getting current partition: %s\n", tmp_ep);
+ debug("--- getting current partition: %s\n", tmp_ep);
if (find_dev_and_part(tmp_ep, &cdev, &pnum, &p) == 0) {
current_mtd_dev = cdev;
current_save();
}
} else if (getenv("partition") == NULL) {
- DEBUGF("no partition variable set, setting...\n");
+ debug("no partition variable set, setting...\n");
current_save();
}
if (!dev)
return NULL;
- DEBUGF("\n--- mtd_part_info: partition number %d for device %s%d (%s)\n",
+ 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);
* @param argv arguments list
* @return 0 on success, 1 otherwise
*/
-int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_chpart(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
/* command line only */
struct mtd_device *dev;
* @param argv arguments list
* @return 0 on success, 1 otherwise
*/
-int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+static int do_mtdparts(cmd_tbl_t *cmdtp, int flag, int argc,
+ char * const argv[])
{
if (argc == 2) {
if (strcmp(argv[1], "default") == 0) {
}
/* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
- if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
+ 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;
}
sprintf(tmpbuf, "%s:%s(%s)%s",
id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
- DEBUGF("add tmpbuf: %s\n", tmpbuf);
+ debug("add tmpbuf: %s\n", tmpbuf);
if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
return 1;
- DEBUGF("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
+ debug("+ %s\t%d\t%s\n", MTD_DEV_TYPE(dev->id->type),
dev->id->num, dev->id->mtd_id);
- if ((dev_tmp = device_find(dev->id->type, dev->id->num)) == NULL) {
+ 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 {
+ } else if (part_add(dev_tmp, p) != 0) {
/* merge new partition with existing ones*/
- p = list_entry(dev->parts.next, struct part_info, link);
- if (part_add(dev_tmp, p) != 0) {
- device_del(dev);
- return 1;
- }
+ device_del(dev);
+ return 1;
}
if (generate_mtdparts_save(last_parts, MTDPARTS_MAXLEN) != 0) {
- printf("generated mtdparts too long, reseting to null\n");
+ printf("generated mtdparts too long, resetting to null\n");
return 1;
}
/* mtdparts del part-id */
if ((argc == 3) && (strcmp(argv[1], "del") == 0)) {
- DEBUGF("del: part-id = %s\n", argv[2]);
+ debug("del: part-id = %s\n", argv[2]);
return delete_partition(argv[2]);
}
- cmd_usage(cmdtp);
- return 1;
+#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;
}
/***************************************************/
chpart, 2, 0, do_chpart,
"change active partition",
"part-id\n"
- " - change active partition (e.g. part-id = nand0,1)\n"
+ " - change active partition (e.g. part-id = nand0,1)"
);
-U_BOOT_CMD(
- mtdparts, 6, 0, do_mtdparts,
- "define flash/nand partitions",
+#ifdef CONFIG_SYS_LONGHELP
+static char mtdparts_help_text[] =
"\n"
" - list partition table\n"
"mtdparts delall\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\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"
"<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)\n"
+ "<ro-flag> := when set to 'ro' makes partition read-only (not used, passed to kernel)";
+#endif
+
+U_BOOT_CMD(
+ mtdparts, 6, 0, do_mtdparts,
+ "define flash/nand partitions", mtdparts_help_text
);
/***************************************************/
projects / karo-tx-uboot.git / blobdiff