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

[Weijie Gao]

ok. I'll be waiting until the framework merged into the upstream kernel.

2017-09-10 13:25 GMT+08:00 Felix Fietkau <nbd at nbd.name>:
> 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



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