static void fill_nand_bmt_buffer(bmt_struct *bmt, u8 *dat, u8 *oob)
{
dump_bmt_info(bmt);
// fill phys_bmt_struct structure with bmt_struct
memset(&fnbb_phys_bmt, 0xFF, sizeof(fnbb_phys_bmt));
memcpy(fnbb_phys_bmt.header.signature, MAIN_SIGNATURE, SIGNATURE_SIZE);
fnbb_phys_bmt.header.version = BMT_VERSION;
fnbb_phys_bmt.header.mapped_count = bmt->mapped_count;
memcpy(fnbb_phys_bmt.table, bmt->table, sizeof(bmt_entry) * bmt_block_count);
fnbb_phys_bmt.header.checksum = cal_bmt_checksum(&fnbb_phys_bmt, bmt_block_count);
memcpy(dat + MAIN_SIGNATURE_OFFSET, &fnbb_phys_bmt, sizeof(fnbb_phys_bmt));
return;
}
/*******************************************************************
* [BMT Interface]
*
* Description:
* Init bmt from nand. Reconstruct if not found or data error
*
* Parameter:
* size: size of bmt and replace pool
*
* Return:
* NULL for failure, and a bmt struct for success
*******************************************************************/
bmt_struct *init_bmt(struct nand_chip * chip, int size)
{
struct mtk_nand_host *host;
if (size > 0 && size < MAX_BMT_SIZE)
{
MSG(INIT, "Init bmt table, size: %d\n", size);
bmt_block_count = size;
} else
{
MSG(INIT, "Invalid bmt table size: %d\n", size);
return NULL;
}
nand_chip_bmt = chip;
system_block_count = (u32)(chip->chipsize >> chip->phys_erase_shift);
total_block_count = bmt_block_count + system_block_count;
page_per_block = BLOCK_SIZE_BMT / PAGE_SIZE_BMT;
host = (struct mtk_nand_host *)chip->priv;
mtd_bmt = &host->mtd;
MSG(INIT, "mtd_bmt: %p, nand_chip_bmt: %p\n", mtd_bmt, nand_chip_bmt);
MSG(INIT, "bmt count: %d, system count: %d\n", bmt_block_count, system_block_count);
// set this flag, and unmapped block in pool will be erased.
pool_erased = 0;
memset(bmt.table, 0, size * sizeof(bmt_entry));
if ((bmt_block_index = load_bmt_data(system_block_count, size)))
{
MSG(INIT, "Load bmt data success @ block 0x%x\n", bmt_block_index);
dump_bmt_info(&bmt);
return &bmt;
} else
{
MSG(INIT, "Load bmt data fail, need re-construct!\n");
if (reconstruct_bmt(&bmt))
return &bmt;
else
return NULL;
}
}
/*******************************************************************
* [BMT Interface]
*
* Description:
* Init bmt from nand. Reconstruct if not found or data error
*
* Parameter:
* size: size of bmt and replace pool
*
* Return:
* NULL for failure, and a bmt struct for success
*******************************************************************/
bmt_struct *init_bmt(struct nand_chip *chip, int size)
{
#if defined(__KERNEL_NAND__)
struct mtk_nand_host *host;
#endif
dat_buf = bmt_buf; //(0x80000);
oob_buf = bmt_buf + 16384; //(0x80000 + 4096);
//return NULL;
if (size > 0 && size < MAX_BMT_SIZE)
{
MSG(INIT, "Init bmt table, size: %d\n", size);
bmt_block_count = size;
}
else
{
MSG(INIT, "Invalid bmt table size: %d\n", size);
return NULL;
}
#if defined(__PRELOADER_NAND__)
nand_chip_bmt = chip;
system_block_count = (u32)(chip->chipsize / (nand_chip_bmt->sector_size == 512?nand_chip_bmt->erasesize : nand_chip_bmt->erasesize*2));
total_block_count = bmt_block_count + system_block_count;
page_per_block = (nand_chip_bmt->sector_size == 512?nand_chip_bmt->erasesize : nand_chip_bmt->erasesize*2) / chip->page_size;
#elif defined(__KERNEL_NAND__)
nand_chip_bmt = chip;
system_block_count = chip->chipsize >> chip->phys_erase_shift;
total_block_count = bmt_block_count + system_block_count;
page_per_block = BLOCK_SIZE_BMT / PAGE_SIZE_BMT;
host = (struct mtk_nand_host *)chip->priv;
mtd_bmt = &host->mtd;
#endif
#ifdef DBG_PRELOADER
MSG(INIT, "bmt count: %d, system count: %d\n", bmt_block_count, system_block_count);
#endif
// set this flag, and unmapped block in pool will be erased.
pool_erased = 0;
// alloc size for bmt.
memset(bmt.table, 0, size * sizeof(bmt_entry));
// load bmt if exist
if ((bmt_block_index = load_bmt_data(system_block_count, size)))
{
#ifdef DBG_PRELOADER
MSG(INIT, "Load bmt data success @ block 0x%x\n", bmt_block_index);
dump_bmt_info(&bmt);
#endif
return &bmt;
}
else
{
MSG(INIT, "Load bmt data fail, need re-construct!\n");
#ifndef __UBOOT_NAND__ // BMT is not re-constructed in UBOOT.
if (reconstruct_bmt(&bmt))
return &bmt;
else
#endif
return NULL;
}
}
bmt_struct *init_bmt(struct ra_nand_chip *ra, int size)
#endif
{
#if defined(TCSUPPORT_CPU_MT7510)||defined(TCSUPPORT_CPU_MT7520)
struct mt6573_nand_host *host;
#endif
if (size > 0 && size < MAX_BMT_SIZE)
{
MSG("Init bmt table, size: %d\n", size);
bmt_block_count = size;
}
else
{
MSG("Invalid bmt table size: %d\n", size);
return NULL;
}
#if defined(TCSUPPORT_CPU_MT7510)||defined(TCSUPPORT_CPU_MT7520)
nand_chip_bmt = chip;
system_block_count = chip->chipsize >> chip->phys_erase_shift;
total_block_count = bmt_block_count + system_block_count;
host = (struct mt6573_nand_host *)chip->priv;
mtd_bmt = &host->mtd;
#else
nand_chip_bmt = ra;
total_block_count = (1 << ra->flash->chip_shift) / (1 << ra->flash->erase_shift);
system_block_count = total_block_count - bmt_block_count;
#endif
page_per_block = BLOCK_SIZE_BMT / PAGE_SIZE_BMT;
MSG("bmt count: %d, system count: %d\n", bmt_block_count, system_block_count);
// set this flag, and unmapped block in pool will be erased.
pool_erased = 0;
// alloc size for bmt.
memset(bmt.table, 0, size * sizeof(bmt_entry));
bmt_block_index = load_bmt_data(system_block_count, size);
// load bmt if exist
if (bmt_block_index)
{
MSG("Load bmt data success @ block %d \n", bmt_block_index);
dump_bmt_info(&bmt);
return &bmt;
}
else
{
MSG("Load bmt data fail! \n");
if (reconstruct_bmt(&bmt))
{
need_write_bmt_to_nand = 1;
return &bmt;
}
else
return NULL;
}
}
