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From: Michael Walle <michael@walle.cc>
To: Tudor Ambarus <tudor.ambarus@linaro.org>
Cc: Jaime Liao <jaimeliao.tw@gmail.com>,
	linux-mtd@lists.infradead.org, pratyush@kernel.org,
	miquel.raynal@bootlin.com, leoyu@mxic.com.tw
Subject: Re: [PATCH v1 0/2] Add octal DTR support for Macronix flash
Date: Tue, 25 Jul 2023 10:28:07 +0200	[thread overview]
Message-ID: <e2058fb379fb0b0d80b2b8c0d07c23ce@walle.cc> (raw)
In-Reply-To: <15276c56-011c-1b55-d905-d0fbb822c4ef@linaro.org>

Am 2023-07-25 10:01, schrieb Tudor Ambarus:
> On 7/25/23 03:23, Jaime Liao wrote:
>> From: JaimeLiao <jaimeliao.tw@gmail.com>
>> 
>> This series add method for Macronix Octal DTR Eable/Disable
>> and add Macronix Octal flash support.
> 
> Do all these flashes swap the bytes in octal DTR mode? If yes,
> you should add the infrastructure so that controllers can swap
> the bytes back, otherwise you'll break bootloaders which work
> in 1-1-1 mode, and breaking the boot chain is unacceptable.

It might also be the SPI controller. Was the zynq SPI controller
used before with octal flashes?

-michael

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  reply	other threads:[~2023-07-25  8:28 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-25  2:23 [PATCH v1 0/2] Add octal DTR support for Macronix flash Jaime Liao
2023-07-25  2:23 ` [PATCH v1 1/2] mtd: spi-nor: add Octal " Jaime Liao
2023-07-25  7:16   ` Michael Walle
2023-07-25  9:05     ` liao jaime
2023-07-25  9:28       ` Michael Walle
2023-07-25  9:49         ` liao jaime
2023-07-25  2:23 ` [PATCH v1 2/2] mtd: spi-nor: add support for Macronix Octal flash Jaime Liao
2023-07-25  7:40   ` Michael Walle
2023-07-25  9:21     ` liao jaime
2023-07-25  9:39       ` Michael Walle
2023-07-25  9:55         ` liao jaime
2023-07-25  8:01 ` [PATCH v1 0/2] Add octal DTR support for Macronix flash Tudor Ambarus
2023-07-25  8:28   ` Michael Walle [this message]
2023-07-25  8:47     ` Tudor Ambarus
2023-07-25  9:25       ` liao jaime
2023-07-25 10:50         ` Tudor Ambarus

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