Commits
Stefan Agner committed 049f4250997
mtd: nand: vf610_nfc: add hardware BCH-ECC support This adds hardware ECC support using the BCH encoder in the NFC IP. The ECC encoder supports up to 32-bit correction by using 60 error correction bytes. There is no sub-page ECC step, ECC is calculated always across the whole page (up to 2k pages). Limitations: - HW ECC: Only 2K page with 64+ OOB. - HW ECC: Only 24 and 32-bit error correction implemented. Raw writes have been tested using the generic nand_write_page_raw implementation. However, raw reads are currently not possible because the controller need to know whether we are going to use the ECC mode already at NAND_CMD_READ0 command time. At this point we do not have the information whether it is a raw read or a regular read at driver level... Signed-off-by: Bill Pringlemeir <bpringlemeir@nbsps.com> Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Brian Norris <computersforpeace@gmail.com>