Re: [PATCH] [PATCH v4] mtd:spi-nor: Add Altera Quad SPI Driver

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On Tuesday, August 18, 2015 at 03:24:44 AM, Brian Norris wrote:
> I'm not very helpful here, so hopefully Viet can be of more use:

Yup :)

> On Mon, Aug 17, 2015 at 07:53:23PM +0200, Marek Vasut wrote:
> > On Monday, August 17, 2015 at 06:03:38 PM, Brian Norris wrote:
> > Also, I cannot find any documentation for this IP block even if I search
> > through Quartus/QSys, is there any proper documentation available
> > anywhere?
> 
> I never found proper documentation, but I didn't look too hard. I've
> mostly been going off of Viet's comments and code.

Me neither, and I looked through the altera stuff in fact. I'm trying
to learn whether this is just an Soft IP, in which case it certainly
can be fixed ; or if there is actually some chip shipping with this
crap synthesised into actual silicon.

> But FWIW, I did find some relevant info for the peculiar Altera EPCQ
> flash here:
> 
> https://www.altera.com/content/dam/altera-www/global/en_US/pdfs/literature/
> hb/cfg/cfg_cf52012.pdf

Altera EPCS/EPCQ flashes are just rebranded micron flashes, they just have 
different JEDEC ID and are a bit more expensive.

Best regards,
Marek Vasut
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