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-rw-r--r--common/cmd_mtdparts.c236
1 files changed, 78 insertions, 158 deletions
diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index 6a0849f97..84108c244 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -90,7 +90,8 @@
#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
@@ -102,7 +103,6 @@
#endif
#if defined(CONFIG_CMD_ONENAND)
-#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <onenand_uboot.h>
#endif
@@ -303,137 +303,91 @@ static void current_save(void)
}
/**
- * 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.
+ * 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_nor(struct mtdids *id, struct part_info *part)
+static int part_validate_eraseblock(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]);
+ struct mtd_info *mtd;
+ char mtd_dev[16];
+ int i, j;
+ ulong start;
- 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);
+ sprintf(mtd_dev, "%s%d", MTD_DEV_TYPE(id->type), id->num);
+ mtd = get_mtd_device_nm(mtd_dev);
+ if (IS_ERR(mtd)) {
+ printf("Partition %s not found on device %s!\n", part->name, mtd_dev);
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;
-}
+ part->sector_size = mtd->erasesize;
-/**
- * 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.
- *
- * @param id of the parent device
- * @param part partition to validate
- * @return 0 if partition is valid, 1 otherwise
- */
-static int part_validate_nand(struct mtdids *id, struct part_info *part)
-{
-#if defined(CONFIG_CMD_NAND)
- /* info for NAND chips */
- nand_info_t *nand;
+ 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;
+ }
- nand = &nand_info[id->num];
+ 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
+ */
- part->sector_size = nand->erasesize;
+ /* 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;
+ }
+ }
- 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);
+ MTD_DEV_TYPE(id->type), id->num, part->name);
return 1;
- }
-
- if (part->size % nand->erasesize) {
- printf("%s%d: partition (%s) size alignment incorrect\n",
- MTD_DEV_TYPE(id->type), id->num, part->name);
- 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
- * 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)
-{
-#if defined(CONFIG_CMD_ONENAND)
- /* info for OneNAND chips */
- struct mtd_info *mtd;
-
- mtd = &onenand_mtd;
-
- part->sector_size = mtd->erasesize;
+ start_ok:
- 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;
- }
+ /* 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;
- if (part->size % mtd->erasesize) {
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
}
@@ -469,16 +423,11 @@ static int part_validate(struct mtdids *id, struct part_info *part)
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);
}
/**
@@ -762,48 +711,19 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
*/
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;
-
- return 0;
- }
+ struct mtd_info *mtd;
+ char mtd_dev[16];
- 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;
- }
+ 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;
+ }
- 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;
}
/**
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-10-31 02:39:37 +0000