linux-kernel - Re: [PATCH 09/11] mtd: spi-nor: macronix: add mx25uw51345g OPI mode support

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Message-ID: <a21533017ffa0b6e6b0903d81d1cae0f@walle.cc>
Date:   Mon, 18 Jul 2022 08:57:10 +0200
From:   Michael Walle <michael@...le.cc>
To:     haibo.chen@....com
Cc:     ashish.kumar@....com, yogeshgaur.83@...il.com, broonie@...nel.org,
        robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        han.xu@....com, singh.kuldeep87k@...il.com,
        tudor.ambarus@...rochip.com, p.yadav@...com,
        miquel.raynal@...tlin.com, richard@....at, vigneshr@...com,
        shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de,
        linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-mtd@...ts.infradead.org,
        festevam@...il.com, linux-imx@....com,
        linux-arm-kernel@...ts.infradead.org, zhengxunli@...c.com.tw
Subject: Re: [PATCH 09/11] mtd: spi-nor: macronix: add mx25uw51345g OPI mode
 support

Am 2022-07-05 11:11, schrieb haibo.chen@....com:
> From: Haibo Chen <haibo.chen@....com>
> 
> mx25uw51345g has a special OPI DTR read command id, so add this
> special fixup.
> For RDID under OPI DTR mode, the dummy need to enlarge to 20 cycles,
> otherwise can't get correct ID value.

Could you please dump the SFDP data of this flash, see [1]. I wonder
if this command isn't described in the SFDP.

-michael

[1] 
https://lore.kernel.org/linux-mtd/4304e19f3399a0a6e856119d01ccabe0@walle.cc/