| menuconfig NAND |
| bool "NAND support " |
| select MTD_NAND_IDS |
| help |
| This enables support for accessing all type of NAND flash |
| devices. For further information see |
| <http://www.linux-mtd.infradead.org/doc/nand.html>. |
| |
| if NAND |
| |
| config MTD_NAND_ECC_BCH |
| bool "Support software BCH ECC" |
| default n |
| help |
| This enables support for software BCH error correction. Binary BCH |
| codes are more powerful and cpu intensive than traditional Hamming |
| ECC codes. They are used with NAND devices requiring more than 1 bit |
| of error correction. |
| |
| config MTD_NAND_BCH |
| tristate |
| depends on MTD_NAND_ECC_BCH |
| default MTD_NAND |
| |
| |
| config NAND_WRITE |
| bool |
| default y |
| prompt "Support writing to Nand" |
| |
| config NAND_ECC_SOFT |
| bool |
| default y |
| prompt "Support software ecc" |
| |
| config NAND_ECC_HW |
| bool |
| default y |
| prompt "Support hardware ecc" |
| |
| config NAND_ECC_HW_SYNDROME |
| bool |
| default y |
| prompt "Support syndrome hardware ecc controllers" |
| |
| config NAND_ECC_HW_NONE |
| bool |
| default y |
| prompt "Support skipping ecc support" |
| |
| config NAND_COMCERTO_ECC_8_HW_BCH |
| bool |
| depends on NAND_COMCERTO && !(NAND_COMCERTO_ECC_24_HW_BCH) |
| default n |
| prompt "Comcerto ECC-8 syndrome calculation using BCH" |
| |
| config NAND_COMCERTO_ECC_24_HW_BCH |
| bool |
| depends on NAND_COMCERTO |
| default y |
| prompt "Comcerto ECC-24 syndrome calculation using BCH" |
| |
| config COMCERTO_NAND_ERASE_FBB |
| bool |
| depends on NAND_COMCERTO |
| default y |
| prompt "comcerto NAND erase false bad blocks" |
| |
| config NAND_INFO |
| bool |
| default y |
| prompt "Nand vendor/size information" |
| help |
| Show informational strings about the vendor and nand flash type |
| during startup |
| |
| config NAND_BBT |
| bool |
| default y |
| prompt "support bad block tables" |
| help |
| Say y here to include support for bad block tables. This speeds |
| up the process of checking for bad blocks |
| |
| config NAND_READ_OOB |
| bool |
| default y |
| prompt "create a device for reading the OOB data" |
| |
| config NAND_IMX |
| bool |
| prompt "i.MX NAND driver" |
| depends on ARCH_IMX21 || ARCH_IMX27 || ARCH_IMX31 || ARCH_IMX35 || ARCH_IMX25 || ARCH_IMX51 |
| |
| config NAND_OMAP_GPMC |
| tristate "NAND Flash Support for GPMC based OMAP platforms" |
| depends on OMAP_GPMC |
| help |
| Support for NAND flash using GPMC. GPMC is a common memory |
| interface found on Texas Instrument's OMAP platforms |
| |
| config NAND_ATMEL |
| bool |
| prompt "Atmel (AT91SAM9xxx) NAND driver" |
| depends on ARCH_AT91 |
| |
| config NAND_S3C24X0 |
| bool |
| prompt "Samsung S3C24X0 NAND driver" |
| depends on ARCH_S3C24xx |
| help |
| Add support for processor's NAND device controller. |
| |
| config NAND_COMCERTO |
| bool |
| prompt "Comcerto NAND driver" |
| depends on MTD && NAND && ARCH_COMCERTO |
| |
| config MTD_NAND_VERIFY_WRITE |
| bool "Verify NAND page writes" |
| help |
| This adds an extra check when data is written to the flash. The |
| NAND flash device internally checks only bits transitioning |
| from 1 to 0. There is a rare possibility that even though the |
| device thinks the write was successful, a bit could have been |
| flipped accidentally due to device wear or something else. |
| |
| config MTD_NAND_ECC_SMC |
| bool "NAND ECC Smart Media byte order" |
| default n |
| help |
| Software ECC according to the Smart Media Specification. |
| The original Linux implementation had byte 0 and 1 swapped. |
| |
| config MTD_NAND_MUSEUM_IDS |
| bool "Enable chip ids for obsolete ancient NAND devices" |
| depends on MTD_NAND |
| default n |
| help |
| Enable this option only when your board has first generation |
| NAND chips (page size 256 byte, erase size 4-8KiB). The IDs |
| of these chips were reused by later, larger chips. |
| |
| config MTD_NAND_IDS |
| tristate |
| |
| config MTD_NAND_DISKONCHIP |
| tristate "DiskOnChip 2000, Millennium and Millennium Plus" |
| depends on EXPERIMENTAL && BROKEN |
| help |
| This is a reimplementation of M-Systems DiskOnChip 2000, |
| Millennium and Millennium Plus as a standard NAND device driver, |
| as opposed to the earlier self-contained MTD device drivers. |
| This should enable, among other things, proper JFFS2 operation on |
| these devices. |
| |
| config MTD_NAND_DISKONCHIP_BBTWRITE |
| bool "Allow BBT writes on DiskOnChip Millennium and 2000TSOP" |
| depends on MTD_NAND_DISKONCHIP |
| help |
| On DiskOnChip devices shipped with the INFTL filesystem (Millennium |
| and 2000 TSOP/Alon), Linux reserves some space at the end of the |
| device for the Bad Block Table (BBT). If you have existing INFTL |
| data on your device (created by non-Linux tools such as M-Systems' |
| DOS drivers), your data might overlap the area Linux wants to use for |
| the BBT. If this is a concern for you, leave this option disabled and |
| Linux will not write BBT data into this area. |
| The downside of leaving this option disabled is that if bad blocks |
| are detected by Linux, they will not be recorded in the BBT, which |
| could cause future problems. |
| Once you enable this option, new filesystems (INFTL or others, created |
| in Linux or other operating systems) will not use the reserved area. |
| The only reason not to enable this option is to prevent damage to |
| preexisting filesystems. |
| Even if you leave this disabled, you can enable BBT writes at module |
| load time (assuming you build diskonchip as a module) with the module |
| parameter "inftl_bbt_write=1". |
| |
| config MTD_NAND_NOMADIK |
| tristate "ST Nomadik 8815 NAND support" |
| depends on ARCH_NOMADIK |
| help |
| Driver for the NAND flash controller on the Nomadik, with ECC. |
| |
| endif |
