On Mon, Jun 02, 2014 at 05:14:42PM +0530, pekon gupta wrote: > This patch add support for BCH16_ECC to omap_gpmc driver. > > *need to BCH16 ECC scheme* > With newer SLC Flash technologies and MLC NAND, and large densities, pagesizes > Flash devices have become more suspectible to bit-flips. Thus stronger > ECC schemes are required for protecting the data. > But stronger ECC schemes have come with larger-sized ECC syndromes which > require > more space in OOB/Spare. This puts constrains like; > (a) BCH16_ECC can correct 16 bit-flips per 512Bytes of data. > (b) BCH16_ECC generates 26-bytes of ECC syndrome / 512B. > Due to (b) this scheme can only be used with NAND devices which have enough > OOB to satisfy following equation: > OOBsize per page >= 26 * (page-size / 512) > > Signed-off-by: Pekon Gupta <pe...@ti.com>
Applied to u-boot-ti/master, thanks! -- Tom
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