linux-kernel - Re: [PATCH] mtd: spi-nor: atmel: add at25sf321b entry

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Message-ID: <239d2425-52f6-4deb-964e-e22d1a1f6637@linaro.org>
Date: Tue, 29 Oct 2024 07:16:08 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Marcus Folkesson <marcus.folkesson@...il.com>,
 Pratyush Yadav <pratyush@...nel.org>, Michael Walle <mwalle@...nel.org>,
 Miquel Raynal <miquel.raynal@...tlin.com>,
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>,
 Nicolas Ferre <nicolas.ferre@...rochip.com>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>,
 Claudiu Beznea <claudiu.beznea@...on.dev>
Cc: linux-mtd@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mtd: spi-nor: atmel: add at25sf321b entry



On 10/18/24 10:51 AM, Marcus Folkesson wrote:
> Add entry for the at25sf321b 32Mbit SPI flash which is able to provide
> SFDP information.

then we could initialize the flash based on SFDP. If you don't need
locking then probably you won't need a flash entry at all. See
https://docs.kernel.org/driver-api/mtd/spi-nor.html

> 
> Link:
> https://www.renesas.com/en/document/dst/at25sf321b-datasheet?r=1608806
> 
> Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
> ---
>  drivers/mtd/spi-nor/atmel.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/atmel.c b/drivers/mtd/spi-nor/atmel.c
> index 45d1153a04a07b7c61f46b117311b24ab695038f..e635559711a4b402d23d49da93efc15e6be571dd 100644
> --- a/drivers/mtd/spi-nor/atmel.c
> +++ b/drivers/mtd/spi-nor/atmel.c
> @@ -238,6 +238,12 @@ static const struct flash_info atmel_nor_parts[] = {
>  		.flags = SPI_NOR_HAS_LOCK,
>  		.no_sfdp_flags = SECT_4K,
>  		.fixups = &at25fs_nor_fixups
> +	}, {
> +		.id = SNOR_ID(0x1f, 0x87, 0x01),
> +		.name = "at25sf321b",
> +		.size = SZ_4M,
> +		.flags = SPI_NOR_HAS_LOCK,
> +		.no_sfdp_flags = SECT_4K,
>  	},
>  };
>  
> 
> ---
> base-commit: 200289db261f0c8131a5756133e9d30966289c3b
> change-id: 20241018-spi-nor-dc29698dea0f
> 
> Best regards,