diff options
| -rw-r--r-- | common/cmd_jffs2.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/common/cmd_jffs2.c b/common/cmd_jffs2.c index 7866c80..0818ea8 100644 --- a/common/cmd_jffs2.c +++ b/common/cmd_jffs2.c @@ -1778,6 +1778,96 @@ int mtdparts_init(void) */ /** + * Calculate sector size. + * + * @return sector size + */ +static inline u32 get_part_sector_size_nand(struct mtdids *id) +{ +#if defined(CONFIG_JFFS2_NAND) && defined(CONFIG_CMD_NAND) +#if defined(CONFIG_NAND_LEGACY) + extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE]; + + return nand_dev_desc[id->num].erasesize; +#else + nand_info_t *nand; + + nand = &nand_info[id->num]; + + return nand->erasesize; +#endif +#else + BUG(); + return 0; +#endif +} + +static inline u32 get_part_sector_size_nor(struct mtdids *id, struct part_info *part) +{ +#if defined(CONFIG_CMD_FLASH) + extern flash_info_t flash_info[]; + + u32 end_phys, start_phys, sector_size = 0, size = 0; + int i; + flash_info_t *flash; + + flash = &flash_info[id->num]; + + start_phys = flash->start[0] + part->offset; + end_phys = start_phys + part->size; + + for (i = 0; i < flash->sector_count; i++) { + if (flash->start[i] >= end_phys) + break; + + if (flash->start[i] >= start_phys) { + if (i == flash->sector_count - 1) { + size = flash->start[0] + flash->size - flash->start[i]; + } else { + size = flash->start[i+1] - flash->start[i]; + } + + if (sector_size < size) + sector_size = size; + } + } + + return sector_size; +#else + BUG(); + return 0; +#endif +} + +static inline u32 get_part_sector_size_onenand(void) +{ +#if defined(CONFIG_CMD_ONENAND) + struct mtd_info *mtd; + + mtd = &onenand_mtd; + + return mtd->erasesize; +#else + BUG(); + return 0; +#endif +} + +static inline u32 get_part_sector_size(struct mtdids *id, struct part_info *part) +{ + if (id->type == MTD_DEV_TYPE_NAND) + return get_part_sector_size_nand(id); + else if (id->type == MTD_DEV_TYPE_NOR) + return get_part_sector_size_nor(id, part); + else if (id->type == MTD_DEV_TYPE_ONENAND) + return get_part_sector_size_onenand(); + else + DEBUGF("Error: Unknown device type.\n"); + + return 0; +} + +/** * Parse and initialize global mtdids mapping and create global * device/partition list. * @@ -1846,6 +1936,8 @@ int mtdparts_init(void) part->offset = 0x00000000; #endif + part->sector_size = get_part_sector_size(id, part); + part->dev = current_dev; INIT_LIST_HEAD(&part->link); |