From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Reto Schneider <code@reto-schneider.ch>,
miquel.raynal@bootlin.com, richard@nod.at,
linux-mtd@lists.infradead.org
Cc: Stefan Roese <sr@denx.de>,
Reto Schneider <reto.schneider@husqvarnagroup.com>,
Frieder Schrempf <frieder.schrempf@kontron.de>
Subject: Re: [PATCH v2] mtd: spinand: gigadevice: Support GD5F1GQ5UExxG
Date: Tue, 2 Mar 2021 17:32:50 +0100 [thread overview]
Message-ID: <20210302163250.23455-1-miquel.raynal@bootlin.com> (raw)
In-Reply-To: <20210211113619.3502-1-code@reto-schneider.ch>
On Thu, 2021-02-11 at 11:36:19 UTC, Reto Schneider wrote:
> From: Reto Schneider <reto.schneider@husqvarnagroup.com>
>
> The relevant changes to the already existing GD5F1GQ4UExxG support has
> been determined by consulting the GigaDevice product change notice
> AN-0392-10, version 1.0 from November 30, 2020.
>
> As the overlaps are huge, variable names have been generalized
> accordingly.
>
> Apart from the lowered ECC strength (4 instead of 8 bits per 512 bytes),
> the new device ID, and the extra quad IO dummy byte, no changes had to
> be taken into account.
>
> New hardware features are not supported, namely:
> - Power on reset
> - Unique ID
> - Double transfer rate (DTR)
> - Parameter page
> - Random data quad IO
>
> The inverted semantic of the "driver strength" register bits, defaulting
> to 100% instead of 50% for the Q5 devices, got ignored as the driver has
> never touched them anyway.
>
> The no longer supported "read from cache during block erase"
> functionality is not reflected as the current SPI NAND core does not
> support it anyway.
>
> Implementation has been tested on MediaTek MT7688 based GARDENA smart
> Gateways using both, GigaDevice GD5F1GQ5UEYIG and GD5F1GQ4UBYIG.
>
> Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
> Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
> Reviewed-by: Stefan Roese <sr@denx.de>
Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git nand/next, thanks.
Miquel
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prev parent reply other threads:[~2021-03-03 18:49 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-11 11:36 [PATCH v2] mtd: spinand: gigadevice: Support GD5F1GQ5UExxG Reto Schneider
2021-03-02 16:32 ` Miquel Raynal [this message]
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