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From: Michael Walle <michael@walle.cc>
To: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
Cc: greg.malysa@timesys.com,
	Tudor Ambarus <tudor.ambarus@microchip.com>,
	Pratyush Yadav <pratyush@kernel.org>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Richard Weinberger <richard@nod.at>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 3/3] mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal read mode
Date: Thu, 01 Dec 2022 23:12:39 +0100	[thread overview]
Message-ID: <3f51282076fb3e209aa4cae7bc0a4c46@walle.cc> (raw)
In-Reply-To: <20221201212750.267721-4-nathan.morrison@timesys.com>

Am 2022-12-01 22:27, schrieb Nathan Barrett-Morrison:
> This adds the IS25LX256 chip into the ISSI flash_info parts table
> 
> Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@timesys.com>
> ---
>  drivers/mtd/spi-nor/issi.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/mtd/spi-nor/issi.c b/drivers/mtd/spi-nor/issi.c
> index 89a66a19d754..98cc5e1d9c18 100644
> --- a/drivers/mtd/spi-nor/issi.c
> +++ b/drivers/mtd/spi-nor/issi.c
> @@ -74,6 +74,9 @@ static const struct flash_info issi_nor_parts[] = {
>  		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)
>  		FIXUP_FLAGS(SPI_NOR_4B_OPCODES)
>  		.fixups = &is25lp256_fixups },
> +	{ "is25lx256", INFO(0x9d5a19, 0, 128 * 1024, 256)

Please use INFO(0x9d5a19, 0, 0, 0)

> +		NO_SFDP_FLAGS(SECT_4K | SPI_NOR_4B_OPCODES |
> +			      SPI_NOR_OCTAL_READ_1_8_8) },

Neither of these flags should be needed. As mentioned before,
you'd need a fixups for the missing 1-1-8 and 1-8-8 fast read ops.

-michael

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      reply	other threads:[~2022-12-01 22:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-01 21:27 [PATCH v3 0/3] mtd: spi-nor: Extend SFDP to support additional octal modes as per latest JEDEC standard Nathan Barrett-Morrison
2022-12-01 21:27 ` [PATCH v3 1/3] mtd: spi-nor: Extend SFDP 4byte address instruction lookup table with new octal modes as per JEDEC JESD216F Nathan Barrett-Morrison
2022-12-01 21:27 ` [PATCH v3 2/3] mtd: spi-nor: Add additional octal-mode flags to be checked during SFDP Nathan Barrett-Morrison
2022-12-01 22:08   ` Michael Walle
2022-12-01 21:27 ` [PATCH v3 3/3] mtd: spi-nor: Add support for IS25LX256 operating in 1S-8S-8S octal read mode Nathan Barrett-Morrison
2022-12-01 22:12   ` Michael Walle [this message]

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