Hi Naga, Naga Sureshkumar Relli <[email protected]> wrote on Wed, 12 Dec 2018 05:27:03 +0000:
> Hi Boris & Miquel, > > An update to my comments on thread https://lkml.org/lkml/2018/11/15/656. > In this I said, will take a default error count value as 16 and during page > read, will check the error count > Register value with this and if it is equal to or greater than the default > count(16) then I am checking for > Erased pages. > But bit[7:0] in ECC_Error_Count_Register(0x38) will update for each error > occurred. > Link: > https://www.xilinx.com/html_docs/registers/ug1087/ug1087-zynq-ultrascale-registers.html > and > check for NAND module, ECC_Error_Count_Register. > > I mean previously I dependent on Total error count value (bit[16:8]), but we > can simply check for bit[7:0] > To see the error occurred or not. > I tried with this approach and I don't see any issues with that. > I ran ubifs with this and I am able to see the bit[7:0] count is updated for > erased page read and then will > Use nand_chech_erased_ecc_chunk() to see the bitflips. > > If it is ok, I will update the driver and will send new patch, but do you > have any other comments on v12? Is 'nandbiterrs -i' running correctly now? Thanks, Miquèl
