Re: [PATCH 2/5] mtd: block2mtd: Add support for specifying MTD write size and subpage shift

Richard Weinberger
2017-06-05T11:27:21Z

Pali,

Am 05.06.2017 um 13:25 schrieb Pali Rohár:
> On Monday 05 June 2017 13:23:22 Richard Weinberger wrote:
>> Pali,
>>
>> Am 05.06.2017 um 13:21 schrieb Pali Rohár:
>>> On Friday 02 June 2017 18:13:02 Richard Weinberger wrote:
>>>> Pali,
>>>>
>>>> Am 02.06.2017 um 17:43 schrieb Pali Rohár:
>>>>> It is needed for creating emulated devices suitable for using in UBI layer
>>>>> and with UBIFS.
>>>>
>>>> Why?
>>>
>>> ubifs depends on write size of nand. And without those parameters as
>>> specified in cover letter I'm unable to mount N900 rootfs image exported
>>> via block2mtd. ubifs reject such image.
>>
>> Hmm, so you render block2mtd into a semi-NAND chip? :)
>
> Probably you can call it like that. But it is still MTD device...

This is what I meant in my other mail.
You add NAND specific properties but still denote it as MTD_RAM/ROM.
I'm not sure whether this is a good idea.

Thanks,
//richard