From: Pratyush Yadav <p.yadav@ti.com>
To: Zhengxun Li <zhengxunli@mxic.com.tw>
Cc: <linux-mtd@lists.infradead.org>, <linux-spi@vger.kernel.org>,
<tudor.ambarus@microchip.com>, <miquel.raynal@bootlin.com>,
<broonie@kernel.org>, <jaimeliao@mxic.com.tw>
Subject: Re: [PATCH v5 1/2] mtd: spi-nor: macronix: add support for Macronix octaflash
Date: Mon, 17 May 2021 13:03:06 +0530 [thread overview]
Message-ID: <20210517073304.sldl5eybdkd6owvl@ti.com> (raw)
In-Reply-To: <1621232088-12567-2-git-send-email-zhengxunli@mxic.com.tw>
On 17/05/21 02:14PM, Zhengxun Li wrote:
> The octaflash is an xSPI compliant octal DTR flash. Add support
> for using it in octal DTR mode.
>
> Try to verify the flash ID to check whether the flash memory in octal
> DTR mode and SPI mode are correct. When reading ID in OCTAL DTR mode,
> ID will appear in a repeated manner. ex: ID[0] = 0xc2, ID[1] = 0xc2,
> ID[2] = 0x94, ID[3] = 0x94... Rearrange the order so that the ID can pass.
>
> The octaflash series can be divided into the following types:
>
> MX25 series : Serial NOR Flash.
> MX66 series : Serial NOR Flash with stacked die.(Size larger than 1Gb)
> LM/UM series : Up to 250MHz clock frequency with both DTR/STR operation.
> LW/UW series : Support simultaneous Read-while-Write operation in multiple
> bank architecture. Read-while-write feature which means read
> data one bank while another bank is programing or erasing.
>
> MX25LM : 3.0V Octal I/O
> -https://www.mxic.com.tw/Lists/Datasheet/Attachments/7841/MX25LM51245G,%203V,%20512Mb,%20v1.1.pdf
>
> MX25UM : 1.8V Octal I/O
> -https://www.mxic.com.tw/Lists/Datasheet/Attachments/7525/MX25UM51245G%20Extreme%20Speed,%201.8V,%20512Mb,%20v1.0.pdf
>
> MX66LM : 3.0V Octal I/O with stacked die
> -https://www.mxic.com.tw/Lists/Datasheet/Attachments/7929/MX66LM1G45G,%203V,%201Gb,%20v1.1.pdf
>
> MX66UM : 1.8V Octal I/O with stacked die
> -https://www.mxic.com.tw/Lists/Datasheet/Attachments/7721/MX66UM1G45G,%201.8V,%201Gb,%20v1.1.pdf
>
> MX25LW : 3.0V Octal I/O with Read-while-Write
> MX25UW : 1.8V Octal I/O with Read-while-Write
> MX66LW : 3.0V Octal I/O with Read-while-Write and stack die
> MX66UW : 1.8V Octal I/O with Read-while-Write and stack die
>
> About LW/UW series, please contact us freely if you have any
> questions. For adding Octal NOR Flash IDs, we have validated
> each Flash on plateform zynq-picozed.
>
> Signed-off-by: Zhengxun Li <zhengxunli@mxic.com.tw>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
--
Regards,
Pratyush Yadav
Texas Instruments Inc.
next prev parent reply other threads:[~2021-05-17 7:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-17 6:14 [PATCH v5 0/2] Add octal DTR support for Macronix flash Zhengxun Li
2021-05-17 6:14 ` [PATCH v5 1/2] mtd: spi-nor: macronix: add support for Macronix octaflash Zhengxun Li
2021-05-17 7:33 ` Pratyush Yadav [this message]
2021-06-29 2:06 ` zhengxunli
2021-06-29 6:37 ` Tudor.Ambarus
2021-06-29 9:33 ` zhengxunli
2021-06-30 9:03 ` zhengxunli
2021-05-17 6:14 ` [PATCH v5 2/2] spi: mxic: patch for octal DTR mode support Zhengxun Li
2021-05-17 15:49 ` Mark Brown
2021-05-17 16:06 ` Pratyush Yadav
2021-05-18 2:47 ` zhengxunli
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