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From: Andras Szemzo <szemzo.andras@gmail.com>
To: Cyrille Pitchen <cyrille.pitchen@wedev4u.fr>
Cc: linux-mtd@lists.infradead.org, dwmw2@infradead.org,
	computersforpeace@gmail.com, boris.brezillon@free-electrons.com,
	marek.vasut@gmail.com, Richard Weinberger <richard@nod.at>
Subject: Re: Issue with Micron QSPI flash in 4.14-rc1
Date: Thu, 28 Sep 2017 10:15:29 +0200	[thread overview]
Message-ID: <8281B818-C30A-4ABE-992F-0F04AF5E4B8B@gmail.com> (raw)
In-Reply-To: <51b9af85-1712-7386-293d-1cfb69510f4f@wedev4u.fr>

Hi,

> On 2017. Sep 26., at 1:00, Cyrille Pitchen <cyrille.pitchen@wedev4u.fr> wrote:
> 
> thanks for your report, I'll try to study it more closely and propose a
> fixup withing the next few days (thinking about invert the logic of
> SKIP_SFDP to disable the parsing by default and enable it memory by
> memory when needed) but here some comments:
> 

Summarizing my testings:

- my 'old' bootloader code was working fine prior the SFDP table patches, and uses quad mode 4_4_4.
- with ‘old’ bootloader the SFDP table patched spi-nor was not working.
- as I replaced my bloader with new driver, which also use SFDP parsing and using mode 1_4_4,
it works fine with/without SFDP patched spi-nor.

I’m still not sure what is going on exactly, but it seems this is my problem only, and the SFDP patch is OK.

Sorry for generating noise...

Regards,
Andras

      parent reply	other threads:[~2017-09-28  8:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-25 14:28 Issue with Micron QSPI flash in 4.14-rc1 Andras Szemzo
2017-09-25 23:00 ` Cyrille Pitchen
2017-09-26  9:19   ` Andras Szemzo
2017-09-26 14:45   ` Andras Szemzo
2017-09-28  8:15   ` Andras Szemzo [this message]

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