diff options
| -rw-r--r-- | common/cmd_mtdparts.c | 240 |
1 files changed, 80 insertions, 160 deletions
diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c index 6a0849f..84108c2 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]); - - 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); + struct mtd_info *mtd; + char mtd_dev[16]; + int i, j; + ulong start; + + 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; -} - -/** - * 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; + part->sector_size = mtd->erasesize; - nand = &nand_info[id->num]; + 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; + } - part->sector_size = nand->erasesize; + 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; + } + } - 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; - } - - if (part->size % nand->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; - } - return 0; -#else - return 1; -#endif -} + start_ok: -/** - * 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; - - 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; } /** |