linux-kernel - Re: [PATCH] mtd: spi-nor: Add support for w25q512jvm

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Date:   Mon, 10 Jan 2022 10:37:32 +0530
From:   Pratyush Yadav <p.yadav@...com>
To:     Dhananjay Phadke <dphadke@...ux.microsoft.com>
CC:     Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: spi-nor: Add support for w25q512jvm

Hi Dhananjay,

On 08/01/22 08:44PM, Dhananjay Phadke wrote:
> Add support for Winbond 64MB W25Q512JV-DTR NOR flash.
> Use PARSE_SFDP flag to init parameters during SFDP parsing.
> 
> Signed-off-by: Dhananjay Phadke <dphadke@...ux.microsoft.com>
> ---

You need to show the dumps of the SFDP and other flash parameters. See 
[0] for an example.

The patch looks fine to me otherwise.

[0] https://patchwork.ozlabs.org/project/linux-mtd/patch/20211209190436.401946-2-tudor.ambarus@microchip.com/

>  drivers/mtd/spi-nor/winbond.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/winbond.c b/drivers/mtd/spi-nor/winbond.c
> index 675f32c136b3..ebc826e21f76 100644
> --- a/drivers/mtd/spi-nor/winbond.c
> +++ b/drivers/mtd/spi-nor/winbond.c
> @@ -118,6 +118,8 @@ static const struct flash_info winbond_parts[] = {
>  		.fixups = &w25q256_fixups },
>  	{ "w25q256jvm", INFO(0xef7019, 0, 64 * 1024, 512)
>  		PARSE_SFDP },
> +	{ "w25q512jvm", INFO(0xef7020, 0, 64 * 1024, 1024),
> +		PARSE_SFDP },
>  	{ "w25q256jw", INFO(0xef6019, 0, 64 * 1024, 512)
>  		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ |
>  			      SPI_NOR_QUAD_READ) },
> -- 
> 2.25.1
> 

-- 
Regards,
Pratyush Yadav
Texas Instruments Inc.