From: Michael Walle <mwalle@kernel.org>
To: liao jaime <jaimeliao.tw@gmail.com>
Cc: linux-mtd@lists.infradead.org, tudor.ambarus@linaro.org,
pratyush@kernel.org, miquel.raynal@bootlin.com,
leoyu@mxic.com.tw, JaimeLiao <jaimeliao@mxic.com.tw>
Subject: Re: [PATCH v3 2/5] mtd: spi-nor: core: Hook manufacture by checking first byte ID
Date: Mon, 04 Sep 2023 16:54:40 +0200 [thread overview]
Message-ID: <639c112dd978e8b6489f158c6c8858b4@kernel.org> (raw)
In-Reply-To: <CAAQoYRk5y_jJqKt-CBQ8vyOi7ppGbestzaCgFbw1fjetk07+ug@mail.gmail.com>
Hi,
>> Most of information could get by parsing SFDP.
>> We hope that highest protocol(8D-8D-8D) could used without adding IDs.
>> Because of octal_dtr function is still reply on mafacturer hook
>> function.
>> So that vendor discovery could make up deficiency.
>
> For this part, have any ideas?
> We hope that we could do something for reducing reliability of ID
> table.
> It will be good if new flashes could get all features without comparing
> flash id
> on ID tables.
Ahh, that was the use case for that. I suggest you look into the SCCR
SFDP
tables. You should get everything from the 23rd DWORD. At least the
Application
note you've sent me, shows these values are populated and by a brief
look
it seems to match your hand written code in patch 1. Which means you
don't
need any code in macronix.c. Instead you should extend the SCCR parser.
-michael
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next prev parent reply other threads:[~2023-09-04 14:54 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-04 9:54 [PATCH v3 0/5] Add octal DTR support for Macronix flash Jaime Liao
2023-08-04 9:54 ` [PATCH v3 1/5] mtd: spi-nor: add Octal " Jaime Liao
2023-08-07 6:44 ` Michael Walle
2023-08-04 9:54 ` [PATCH v3 2/5] mtd: spi-nor: core: Hook manufacture by checking first byte ID Jaime Liao
2023-08-07 6:37 ` Michael Walle
2023-08-09 1:04 ` liao jaime
2023-08-10 7:27 ` Michael Walle
2023-08-11 9:03 ` liao jaime
2023-08-11 10:11 ` Tudor Ambarus
2023-08-14 8:04 ` liao jaime
2023-08-11 10:20 ` Michael Walle
2023-08-14 8:24 ` liao jaime
2023-08-31 3:18 ` liao jaime
2023-09-04 14:54 ` Michael Walle [this message]
2023-08-04 9:54 ` [PATCH v3 3/5] spi: spi-mem: Allow specifying the byte order in DTR mode Jaime Liao
2023-08-07 6:40 ` Michael Walle
2023-08-09 1:36 ` liao jaime
2023-08-10 7:31 ` Michael Walle
2023-08-04 9:54 ` [PATCH v3 4/5] mtd: spi-nor: core: " Jaime Liao
2023-08-04 9:54 ` [PATCH v3 5/5] mtd: spi-nor: sfdp: Get the 8D-8D-8D byte order from BFPT Jaime Liao
2023-08-07 6:42 ` [PATCH v3 0/5] Add octal DTR support for Macronix flash Michael Walle
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