[PATCH] RFC: mtd/spi-nor: add checking for the spi_nor_read

[Michal Suchanek]

On 13 August 2015 at 17:38, Bean Huo 霍斌斌 (beanhuo) <beanhuo at micron.com> wrote:
>
> Hi,
> Is it convenient to tell me that which vendor's spi nor?
> For current spi nor structure, write operation has been already split transaction length
> By page size(256 Bytes). But seems "retlen" not reasonable.
>

I was working with SPI controller which had limit of 63 bytes per
transfer which is smaller than the page size.

This limitation was due to driver deficiency. Adding the limit to
m25p80 allowed full access to the flash content, though.

Thanks

Michal