Re: [PATCH] [PATCH v5] mtd:spi-nor: Add Altera Quad SPI Driver

Brian Norris
2015-08-20T20:38:40Z

On Thu, Aug 20, 2015 at 11:42:18AM +0200, Marek Vasut wrote:
> On Thursday, August 20, 2015 at 11:18:14 AM, Viet Nga Dao wrote:
> > You might misunderstand the hardware problem i mention here. This soft
> > IP controller is able to provide the ID for our Altera EPCS/EPCQ flash
> > chips, which are non JEDEC chips. As from EPCQ device data sheet
> > (https://www.altera.com/content/dam/altera-www/global/en_US/pdfs/literature
> > /hb/cfg/cfg_cf52012.pdf), the device ID is 8 bit data.
>
> So what exactly is the output of READID instruction followed by 6 Byte read
> on an EPCQ chip?

+1 to this question