[LEDE-DEV] [PATCHv2 3/4] kernel/4.4: add generic spi-nand framework

[Felix Fietkau]

On 2017-09-06 18:24, Weijie Gao wrote:
> Yes, I have to admit operations of GigaDevice's chips are the same.
> All the chips have the same read/write/erase command sequences.
> Differences are plane selection bits (Micron), die selection
> (Micron/Winbond), buffered read/continuous read (Winbond) and ECC
> status bits.
> These differences can be abstracted to different functions chosen by
> the flash id. So this won't be a problem.
> 
> As for the patches, may be I can submit patches to both generic-4.4
> and generic-4.9, and remove patches from pistachio.
> So this won't be a problem when ar71xx updates linux-4.9.
I think it's a bad idea to integrate new code that is based on an old
framework rejected by upstream. Even if it's more work, I strongly
suggest using the new code by Micron.
If there's no way around using the old code for now, it should
definitely not be placed in generic/ because this could potentially lead
to even more people picking it up, thus creating long term porting issues.

- Felix