Re: [PATCH 0/2] staging: mtd: Support for GigaDevice SPI NAND flash

[Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>]

On 11/20/2014 10:16 PM, Qi Wang 王起 (qiwang) wrote:
>> On 11/20/2014 10:18 AM, Ezequiel Garcia wrote:
>> Hm, perhaps it's better to rely in the NAND core code and avoid that BBT
>> and ECC code handling duplication?
>>
>> Ionela and I are preparing an SPI NAND framework, but it's far from
>> ready yet, so if you have something to submit, please do so :)
> 
> Yes, duplicate BBT and ECC code from nand code do is not a good idea.
> But SPI NAND framework should be a standalone module in MTD, might cause
> chaos if it still rely on NAND core code, that is my only concern.

Any reasons why you think it should be a standalone MTD driver?

Why do you say it'd case chaos?

> How do you think?
> 

Yeah, I've been thinking about this for some time. Right now, I think that
SPI NAND is just that: a NAND over SPI, so I'm doing some experiments
around this design:

    Userspace
  ------------------
    MTD
  ------------------
    NAND core
  ------------------
    SPI NAND core
  ------------------
    SPI NAND device
  ------------------
    SPI core
  ------------------
    SPI master
  ------------------
    Hardware

-- 
Ezequiel