linux-kernel - Re: [PATCH 2/2] mtd: spinand: esmt: Extend IDs to 5 bytes

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Message-Id: <20240205142800.466649-1-miquel.raynal@bootlin.com>
Date: Mon,  5 Feb 2024 15:28:00 +0100
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Ezra Buehler <ezra@...yb.ch>,
	linux-mtd@...ts.infradead.org
Cc: Miquel Raynal <miquel.raynal@...tlin.com>,
	Chuanhong Guo <gch981213@...il.com>,
	Dmitry Rokosov <ddrokosov@...rdevices.ru>,
	Martin Kurbanov <mmkurbanov@...rdevices.ru>,
	Md Sadre Alam <quic_mdalam@...cinc.com>,
	Richard Weinberger <richard@....at>,
	Sridharan S N <quic_sridsn@...cinc.com>,
	Vignesh Raghavendra <vigneshr@...com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] mtd: spinand: esmt: Extend IDs to 5 bytes

On Thu, 2024-01-25 at 20:01:08 UTC, Ezra Buehler wrote:
> From: Ezra Buehler <ezra.buehler@...qvarnagroup.com>
> 
> According to the datasheets, the ESMT chips in question will return a 5
> byte long identification code where the last 3 bytes are the JEDEC
> continuation codes (7Fh). Although, I would have expected 4 continuation
> codes as Powerchip Semiconductor (C8h, corresponding to the parameter
> page data) is located in bank 5 of the JEDEC database.
> 
> By matching the full 5 bytes we can avoid clashes with GigaDevice NAND
> flashes.
> 
> This fix allows the MT7688-based GARDENA smart Gateway to boot again.
> 
> Fixes: aa08bf187f32 ("mtd: spinand: esmt: add support for F50D2G41KA")
> Signed-off-by: Ezra Buehler <ezra.buehler@...qvarnagroup.com>
> Reviewed-by: Martin Kurbanov <mmkurbanov@...utedevices.com>
> Tested-by: Martin Kurbanov <mmkurbanov@...utedevices.com>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.

Miquel