[U-Boot] [PATCH v3 5/6] omap_gpmc: add support for hw assisted BCH8

Andreas Bießmann
2013-04-05T09:15:36Z

Dear Thomas Weber,

On 04/05/2013 10:13 AM, Thomas Weber wrote:
> Hello Andreas,
>
> I have the following problem when switching from nandecc hw hamming to
> nandecc hw bch8.
>
> Thomas
>
> -------8<----------
> U-Boot 2013.04-rc2-00006-g9abd2ec (Apr 05 2013 - 09:58:48)
>
> OMAP3530-GP ES3.1, CPU-OPP2, L3-165MHz, Max CPU Clock 600 mHz
> OMAP3 DevKit8000 + LPDDR/NAND
> I2C: ready
> DRAM: 128 MiB
> NAND: 128 MiB
> MMC: OMAP SD/MMC: 0
> *** Warning - bad CRC, using default environment
>
> In: serial
> Out: serial
> Err: serial
> ethaddr not set, using Die ID
> Die ID #1d82000400000000040365f90100b017
> Net: dm9000
> Hit any key to stop autoboot: 0
> OMAP3 DevKit8000 # nandecc hw bch8
> Unsupported HW ECC algorithm
> OMAP3 DevKit8000 # nandecc hw bch8
> Unsupported HW ECC algorithm
> OMAP3 DevKit8000 # nandecc hw hamming
> 1-bit hamming HW ECC selected
> OMAP3 DevKit8000 # nandecc sw
> SW ECC selected
> OMAP3 DevKit8000 # nandecc hw bch8
> Unsupported HW ECC algorithm
> OMAP3 DevKit8000 # nandecc hw hamming
> 1-bit hamming HW ECC selected
> OMAP3 DevKit8000 # nandecc hw bch8
> Unsupported HW ECC algorithm
> No ECC functions supplied; Hardware ECC not possible
> BUG: failure at nand_base.c:3014/nand_scan_tail()!
> BUG!

You are right. I'v never tested the nandecc changes without the new
CONFIG_NAND_OMAP_BCH8 config parameter, many thanks to you!

I've a fix for that and will repost v4 ASAP.

Best regards

Andreas Bie?mann