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ecc problem on imx28

Question asked by Mehmet Kurnaz on Oct 14, 2014
Latest reply on Oct 14, 2014 by igorpadykov

Hello all,

We are using imx28 for a project. We have 4GB MLC NAND and we use UBI fs. We created 6 mtd partitions.

20   MB for linux

256 MB for rootfs

256 MB for backup of rootfs

others are not important


We have encountered ecc problem. Sometimes rootfs becomes readonly, sometimes it couldn't be mounted. We are using Samsung K9LBG08U0D, it has (4K + 218)B blocks and supports 8 bit failure for ecc. But in gpmi_nfc_set_geometry() function (in gpmi-nfc-hal-common.c file), ecc_strength is set to 16 for 218 bytes oob. Is this difference important? Should I set ecc_strength to 8?