MT7621 NAND OOB misdetect

[Peter Naulls]

On 2/13/23 15:01, Peter Naulls wrote:
ich might be the misreporting.
> 
> 
> In our driver, it comes out as:
> 
> [   16.091826] nand: 128 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB 
> size: 128
> [   16.107083] mt7621-nand 1e003000.nand: ECC strength adjusted to 12 bits
> 
> I tried adjusting in nand_onfi.c ecc_bits = 12 and spare_bytes_per_page to 112, 
> to no avail.
> 
> I set that back, and then in mt7621_nfc_calc_ecc_strength tried setting the
> strength to 1, with no obvious difference.

I found this:


https://forum.openwrt.org/t/fritz-repeater-3000-ubirmvol/119513/26?page=2

And the Fritz!Box 7520 V2 uses the exact same part. I haven't yet tried
to track down any patches, etc for this.

https://boxmatrix.info/wiki/FRITZ!Box_7520_v2