diff options
Diffstat (limited to 'kernel/drivers/mtd/nand/diskonchip.c')
| -rw-r--r-- | kernel/drivers/mtd/nand/diskonchip.c | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/kernel/drivers/mtd/nand/diskonchip.c b/kernel/drivers/mtd/nand/diskonchip.c index f68a7bcce..0802158a3 100644 --- a/kernel/drivers/mtd/nand/diskonchip.c +++ b/kernel/drivers/mtd/nand/diskonchip.c @@ -24,7 +24,7 @@ #include <linux/rslib.h> #include <linux/moduleparam.h> #include <linux/slab.h> -#include <asm/io.h> +#include <linux/io.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> @@ -69,6 +69,9 @@ struct doc_priv { int mh0_page; int mh1_page; struct mtd_info *nextdoc; + + /* Handle the last stage of initialization (BBT scan, partitioning) */ + int (*late_init)(struct mtd_info *mtd); }; /* This is the syndrome computed by the HW ecc generator upon reading an empty @@ -1294,14 +1297,11 @@ static int __init nftl_scan_bbt(struct mtd_info *mtd) this->bbt_md = NULL; } - /* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set. - At least as nand_bbt.c is currently written. */ - if ((ret = nand_scan_bbt(mtd, NULL))) + ret = this->scan_bbt(mtd); + if (ret) return ret; - mtd_device_register(mtd, NULL, 0); - if (!no_autopart) - mtd_device_register(mtd, parts, numparts); - return 0; + + return mtd_device_register(mtd, parts, no_autopart ? 0 : numparts); } static int __init inftl_scan_bbt(struct mtd_info *mtd) @@ -1344,10 +1344,10 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) this->bbt_md->pattern = "TBB_SYSM"; } - /* It's safe to set bd=NULL below because NAND_BBT_CREATE is not set. - At least as nand_bbt.c is currently written. */ - if ((ret = nand_scan_bbt(mtd, NULL))) + ret = this->scan_bbt(mtd); + if (ret) return ret; + memset((char *)parts, 0, sizeof(parts)); numparts = inftl_partscan(mtd, parts); /* At least for now, require the INFTL Media Header. We could probably @@ -1355,10 +1355,7 @@ static int __init inftl_scan_bbt(struct mtd_info *mtd) autopartitioning, but I want to give it more thought. */ if (!numparts) return -EIO; - mtd_device_register(mtd, NULL, 0); - if (!no_autopart) - mtd_device_register(mtd, parts, numparts); - return 0; + return mtd_device_register(mtd, parts, no_autopart ? 0 : numparts); } static inline int __init doc2000_init(struct mtd_info *mtd) @@ -1369,7 +1366,7 @@ static inline int __init doc2000_init(struct mtd_info *mtd) this->read_byte = doc2000_read_byte; this->write_buf = doc2000_writebuf; this->read_buf = doc2000_readbuf; - this->scan_bbt = nftl_scan_bbt; + doc->late_init = nftl_scan_bbt; doc->CDSNControl = CDSN_CTRL_FLASH_IO | CDSN_CTRL_ECC_IO; doc2000_count_chips(mtd); @@ -1396,13 +1393,13 @@ static inline int __init doc2001_init(struct mtd_info *mtd) can have multiple chips. */ doc2000_count_chips(mtd); mtd->name = "DiskOnChip 2000 (INFTL Model)"; - this->scan_bbt = inftl_scan_bbt; + doc->late_init = inftl_scan_bbt; return (4 * doc->chips_per_floor); } else { /* Bog-standard Millennium */ doc->chips_per_floor = 1; mtd->name = "DiskOnChip Millennium"; - this->scan_bbt = nftl_scan_bbt; + doc->late_init = nftl_scan_bbt; return 1; } } @@ -1415,7 +1412,7 @@ static inline int __init doc2001plus_init(struct mtd_info *mtd) this->read_byte = doc2001plus_read_byte; this->write_buf = doc2001plus_writebuf; this->read_buf = doc2001plus_readbuf; - this->scan_bbt = inftl_scan_bbt; + doc->late_init = inftl_scan_bbt; this->cmd_ctrl = NULL; this->select_chip = doc2001plus_select_chip; this->cmdfunc = doc2001plus_command; @@ -1591,6 +1588,8 @@ static int __init doc_probe(unsigned long physadr) nand->ecc.bytes = 6; nand->ecc.strength = 2; nand->bbt_options = NAND_BBT_USE_FLASH; + /* Skip the automatic BBT scan so we can run it manually */ + nand->options |= NAND_SKIP_BBTSCAN; doc->physadr = physadr; doc->virtadr = virtadr; @@ -1608,7 +1607,7 @@ static int __init doc_probe(unsigned long physadr) else numchips = doc2001_init(mtd); - if ((ret = nand_scan(mtd, numchips))) { + if ((ret = nand_scan(mtd, numchips)) || (ret = doc->late_init(mtd))) { /* DBB note: i believe nand_release is necessary here, as buffers may have been allocated in nand_base. Check with Thomas. FIX ME! */ |