linux-kernel - Re: [PATCH RFC 0/8] mtd: spi-nor: fix support of Quad SPI memories

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Date:	Fri, 15 Apr 2016 23:48:23 +0200
From:	Marek Vasut <marex@...x.de>
To:	Cyrille Pitchen <cyrille.pitchen@...el.com>,
	computersforpeace@...il.com, linux-mtd@...ts.infradead.org
CC:	nicolas.ferre@...el.com, boris.brezillon@...e-electrons.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC 0/8] mtd: spi-nor: fix support of Quad SPI memories

On 04/13/2016 07:23 PM, Cyrille Pitchen wrote:
> Hi all,
> 
> this series is RFC but has already been tested on a sama5d2x xplained
> board with the Atmel QSPI controller + Micron n25q128a13:
> compatible = "micron,n25q128a13", "jedec,spi-nor";
> 
> This first 3 patches of the series are stable and have already been
> submitted to linux-mtd. They are required as a base for the later
> patches.
> 
> Support of Micron memories has been implemented as an example, other
> memory entries should be updated as needed in the spi_nor_ids[] table.
> 
> This new way to support Quad SPI memories is inspired by the JEDEC
> SFDP standard. However SFDP tables are not provided by all memories and
> some of them badly implement the standard. Also the standard itself
> can tell whether the memory supports the 2-2-2 mode but doesn't provide
> the procedure to enter/leave this mode as provided for the 4-4-4 mode.
> 
> 
> Please note that some commit messages are missing but a review might be
> really helpfull! :)
> 
> Almost all the actual rework is done in patch 4.

For Altera SoCFPGA , Cadence QSPI NOR controller , Terasic SoCkit board:
Tested-by: Marek Vasut <marex@...x.de>

Best regards,
Marek Vasut