Messages in this thread | | | Date | Tue, 29 Sep 2015 13:57:27 -0700 | From | Brian Norris <> | Subject | Re: [PATCH v12 2/5] mtd: nand: vf610_nfc: add hardware BCH-ECC support |
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Pushed this patch to l2-mtd.git, as it looks pretty much good. Although, I'd like raw read support...
On Wed, Sep 02, 2015 at 06:06:34PM -0700, Stefan Agner wrote: > 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 accross 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...
Hmm, can you get this in ecc.read_page_raw()?
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