* partition := <part-id>
* <part-id> := <dev-id>,part_num
*
- *
+ *
* 'mtdids' - linux kernel mtd device id <-> u-boot device id mapping
*
* mtdids=<idmap>[,<idmap>,...]
#include <command.h>
#include <malloc.h>
#include <jffs2/jffs2.h>
-#include <linux/mtd/nand.h>
#include <linux/list.h>
#include <linux/ctype.h>
-#if (CONFIG_COMMANDS & CFG_CMD_JFFS2)
+#if defined(CONFIG_CMD_JFFS2)
#include <cramfs/cramfs_fs.h>
+#if defined(CONFIG_CMD_NAND)
+#ifdef CFG_NAND_LEGACY
+#include <linux/mtd/nand_legacy.h>
+#else /* !CFG_NAND_LEGACY */
+#include <linux/mtd/nand.h>
+#include <nand.h>
+#endif /* !CFG_NAND_LEGACY */
+#endif
/* enable/disable debugging messages */
-#define DEBUG
-#undef DEBUG
+#define DEBUG_JFFS
+#undef DEBUG_JFFS
-#ifdef DEBUG
+#ifdef DEBUG_JFFS
# define DEBUGF(fmt, args...) printf(fmt ,##args)
#else
# define DEBUGF(fmt, args...)
/* this flag needs to be set in part_info struct mask_flags
* field for read-only partitions */
-#define MTD_WRITEABLE 1
+#define MTD_WRITEABLE_CMD 1
#ifdef CONFIG_JFFS2_CMDLINE
/* default values for mtdids and mtdparts variables */
sprintf(buf, "%lu", 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;
+
+ DEBUGF("--- index partitions ---\n");
+
+ if (current_dev) {
+ mtddevnum = 0;
+ list_for_each(dentry, &devices) {
+ dev = list_entry(dentry, struct mtd_device, link);
+ if (dev == current_dev) {
+ mtddevnum += current_partnum;
+ sprintf(buf, "%d", mtddevnum);
+ setenv("mtddevnum", buf);
+ break;
+ }
+ mtddevnum += dev->num_parts;
+ }
+
+ part = jffs2_part_info(current_dev, current_partnum);
+ setenv("mtddevname", part->name);
+
+ DEBUGF("=> mtddevnum %d,\n=> mtddevname %s\n", mtddevnum, part->name);
+ } else {
+ setenv("mtddevnum", NULL);
+ setenv("mtddevname", NULL);
+
+ DEBUGF("=> mtddevnum NULL\n=> mtddevname NULL\n");
+ }
+}
+
/**
* Save current device and partition in environment variable 'partition'.
*/
DEBUGF("=> partition NULL\n");
}
+ index_partitions();
}
/**
*/
static int part_validate_nor(struct mtdids *id, struct part_info *part)
{
-#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
+#if defined(CONFIG_CMD_FLASH)
/* info for FLASH chips */
- extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+ extern flash_info_t flash_info[];
flash_info_t *flash;
int offset_aligned;
u32 end_offset;
*/
static int part_validate_nand(struct mtdids *id, struct part_info *part)
{
-#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
+#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
/* info for NAND chips */
- extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
- struct nand_chip *nand;
+ nand_info_t *nand;
- nand = &nand_dev_desc[id->num];
+ nand = &nand_info[id->num];
if ((unsigned long)(part->offset) % nand->erasesize) {
printf("%s%d: partition (%s) start offset alignment incorrect\n",
*/
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_dev) {
/* we are modyfing partitions for the current device,
* update current */
if (curr_pi == part) {
printf("current partition deleted, resetting current to 0\n");
current_partnum = 0;
- current_save();
} else if (part->offset <= curr_pi->offset) {
- current_partnum--;
- current_save();
+ current_partnum--;
}
+ current_save_needed = 1;
}
}
-
+#ifdef CFG_NAND_LEGACY
jffs2_free_cache(part);
+#endif
list_del(&part->link);
free(part);
dev->num_parts--;
+ if (current_save_needed > 0)
+ current_save();
+ else
+ index_partitions();
+
return 0;
}
list_for_each_safe(entry, n, head) {
part_tmp = list_entry(entry, struct part_info, link);
+#ifdef CFG_NAND_LEGACY
jffs2_free_cache(part_tmp);
+#endif
list_del(entry);
free(part_tmp);
}
if (list_empty(&dev->parts)) {
DEBUGF("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 */
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_partnum++;
current_save();
+ } else {
+ index_partitions();
}
-
return 0;
}
}
+
list_add_tail(&part->link, &dev->parts);
+ dev->num_parts++;
+ index_partitions();
return 0;
}
*/
static int part_add(struct mtd_device *dev, struct part_info *part)
{
- /* verify alignment and size */
+ /* verify alignment and size */
if (part_validate(dev->id, part) != 0)
return 1;
if (part_sort_add(dev, part) != 0)
return 1;
- dev->num_parts++;
return 0;
}
}
}
- /* check for offset */
+ /* check for offset */
offset = OFFSET_NOT_SPECIFIED;
if (*p == '@') {
p++;
offset = memsize_parse(p, &p);
}
- /* now look for the name */
+ /* now look for the name */
if (*p == '(') {
name = ++p;
if ((p = strchr(name, ')')) == NULL) {
name = NULL;
}
- /* test for options */
+ /* test for options */
mask_flags = 0;
if (strncmp(p, "ro", 2) == 0) {
- mask_flags |= MTD_WRITEABLE;
+ mask_flags |= MTD_WRITEABLE_CMD;
p += 2;
}
static int device_validate(u8 type, u8 num, u32 *size)
{
if (type == MTD_DEV_TYPE_NOR) {
-#if (CONFIG_COMMANDS & CFG_CMD_FLASH)
+#if defined(CONFIG_CMD_FLASH)
if (num < CFG_MAX_FLASH_BANKS) {
- extern flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+ extern flash_info_t flash_info[];
*size = flash_info[num].size;
+
return 0;
}
printf("support for FLASH devices not present\n");
#endif
} else if (type == MTD_DEV_TYPE_NAND) {
-#if defined(CONFIG_JFFS2_NAND) && (CONFIG_COMMANDS & CFG_CMD_NAND)
+#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND)
if (num < CFG_MAX_NAND_DEVICE) {
+#ifndef CFG_NAND_LEGACY
+ *size = nand_info[num].size;
+#else
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
*size = nand_dev_desc[num].totlen;
+#endif
return 0;
}
current_partnum = 0;
}
current_save();
+ return 0;
}
-
+ index_partitions();
return 0;
}
*/
static void device_add(struct mtd_device *dev)
{
+ u8 current_save_needed = 0;
+
if (list_empty(&devices)) {
current_dev = dev;
current_partnum = 0;
- current_save();
+ current_save_needed = 1;
}
list_add_tail(&dev->link, &devices);
+
+ if (current_save_needed > 0)
+ current_save();
+ else
+ index_partitions();
}
/**
printf("invalid mtd device '%.*s'\n", mtd_id_len - 1, mtd_id);
return 1;
}
-
- DEBUGF("dev type = %d (%s), dev num = %d, mtd-id = %s\n",
+
+ DEBUGF("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, ';');
offset = 0;
if ((dev = device_find(id->type, id->num)) != NULL) {
- /* if device already exists start at the end of the last partition */
+ /* 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;
}
else
offset = part->offset;
- /* verify alignment and size */
+ /* verify alignment and size */
if (part_validate(id, part) != 0)
break;
} else {
printf("unexpected character '%c' at the end of device\n", *p);
*ret = NULL;
- return 1;
+ return 1;
}
}
}
memset(dev, 0, sizeof(struct mtd_device));
dev->id = id;
- dev->num_parts = num_parts;
+ dev->num_parts = 0; /* part_sort_add increments num_parts */
INIT_LIST_HEAD(&dev->parts);
INIT_LIST_HEAD(&dev->link);
{
struct list_head *entry;
struct mtdids *id;
-
+
list_for_each(entry, &mtdids) {
id = list_entry(entry, struct mtdids, link);
}
/**
- * Search global mtdids list and find id of a requested mtd_id.
+ * Search global mtdids list and find id of a requested mtd_id.
*
* Note: first argument is not null terminated.
*
{
struct list_head *entry;
struct mtdids *id;
-
+
DEBUGF("--- id_find_by_mtd_id: '%.*s' (len = %d)\n",
mtd_id_len, mtd_id, mtd_id_len);
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)
memcpy(p, tmpbuf, len);
p += len;
maxlen -= len;
-
-
+
+
/* add offset only when there is a gap between
* partitions */
if ((!prev_part && (offset != 0)) ||
*(p++) = ')';
maxlen -= len;
}
-
+
/* ro mask flag */
- if (part->mask_flags && MTD_WRITEABLE) {
+ if (part->mask_flags && MTD_WRITEABLE_CMD) {
len = 2;
if (len > maxlen)
goto cleanup;
MTD_DEV_TYPE(dev->id->type), dev->id->num,
dev->id->mtd_id, dev->num_parts);
printf(" #: name\t\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(" %d: %-22s\t0x%08x\t0x%08x\t%d\n",
+ printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
part_num, part->name, part->size,
part->offset, part->mask_flags);
* 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
+ * @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)
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;
DEBUGF("--- 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;
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;
/* re-read 'mtdparts' variable, 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;
ids_changed = 1;
if (parse_mtdids(ids) != 0) {
- device_delall(&devices);
+ devices_init();
return 1;
}
/**
* Parse and initialize global mtdids mapping and create global
- * device/partition list.
+ * device/partition list.
*
* @return 0 on success, 1 otherwise
*/
DEBUGF("\n---mtdparts_init---\n");
if (!initialized) {
+ struct mtdids *id;
+ struct part_info *part;
+
initialized = 1;
current_dev = (struct mtd_device *)
malloc(sizeof(struct mtd_device) +
memset(current_dev, 0, sizeof(struct mtd_device) +
sizeof(struct part_info) + sizeof(struct mtdids));
- struct mtdids *id = (struct mtdids *)(current_dev + 1);
- struct part_info *part = (struct part_info *)(id + 1);
+ id = (struct mtdids *)(current_dev + 1);
+ part = (struct part_info *)(id + 1);
/* id */
id->mtd_id = "single part";
return !(size > 0);
}
- return 0;
+ return 1;
}
/**
ret = jffs2_1pass_ls(part, filename);
}
- return (ret == 1);
+ return ret ? 0 : 1;
}
- return 0;
+ return 1;
}
/**
/* make sure we are in sync with env variables */
if (mtdparts_init() !=0)
return 1;
-
+
if ((part = jffs2_part_info(current_dev, current_partnum))){
/* check partition type for cramfs */
ret = jffs2_1pass_info(part);
}
- return (ret == 1);
+ return ret ? 0 : 1;
}
- return 0;
+ return 1;
}
/* command line only */
list_partitions();
return 0;
}
-
+
/* mtdparts add <mtd-dev> <size>[@<offset>] <name> [ro] */
if (((argc == 5) || (argc == 6)) && (strcmp(argv[1], "add") == 0)) {
#define PART_ADD_DESC_MAXLEN 64
return 1;
}
sprintf(tmpbuf, "%s:%s(%s)%s",
- id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
+ id->mtd_id, argv[3], argv[4], argv[5] ? argv[5] : "");
DEBUGF("add tmpbuf: %s\n", tmpbuf);
if ((device_parse(tmpbuf, NULL, &dev) != 0) || (!dev))
/***************************************************/
-#endif /* CFG_CMD_JFFS2 */
+#endif
projects / karo-tx-uboot.git / blobdiff