LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Jon Nettleton <jon@solid-run.com>
To: Paul Kocialkowski <contact@paulk.fr>
Cc: Russell King - ARM Linux <linux@armlinux.org.uk>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <kernel@pengutronix.de>,
	Fabio Estevam <fabio.estevam@nxp.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH] ARM: dts: imx6qdl-cubox-i: Move card-detect GPIO to 1.5 SOM devices only
Date: Sun, 29 Apr 2018 16:09:31 +0200	[thread overview]
Message-ID: <CABdtJHun8DWbr-bUgwQEK61UXMLh5pPkwvUTF+KxhHmJaXEr-A@mail.gmail.com> (raw)
In-Reply-To: <d167cc6987fdb7f04493c634873d430dcd216887.camel@paulk.fr>

On Sun, Apr 29, 2018 at 3:47 PM, Paul Kocialkowski <contact@paulk.fr> wrote:
> Hi,
>
> Le dimanche 22 avril 2018 à 19:22 +0200, Paul Kocialkowski a écrit :
>> Are all CuBox-i units that have ever been sold supposed to have a
>> connector with a CD line? I find it hard to believe that it's broken
>> specifically on mine.
>
> Do you have a clue whether there should, in fact, be a CD line on all
> CuBox-i models out there? Although you seemed to imply that my device
> might be broken, I am still confused about whether this issue concerns
> my device only or a specific revision of the CuBox-i.
>
>> If that's really needed, I could open up the device, check whether the
>> R8 pull is in place and check the voltage there.
>
> In case there is a doubt, I will proceed with opening the device so we
> can have a clear idea, but I'd rather avoid it as much as possible.
>
> Cheers,
>
> --
> Paul Kocialkowski,
>
> developer of free digital technology and hardware support.
>
> Website: https://www.paulk.fr/
> Coding blog: https://code.paulk.fr/
> Git repositories: https://git.paulk.fr/ https://git.code.paulk.fr/

Paul,

You can see on our schematics that the hinged sdhc card slot is an
assembly option and not the default.
https://wiki.solid-run.com/lib/exe/fetch.php?media=imx6:cubox-i:schematics-rev-1.1:cubox-i-lower.pdf

You have either an initial early developer unit (pre-production) that
was assembled like this for testing, or a unit that someone
specifically ordered assembled this way.  You can see from the
schematic that this option does not have a CD-pin because it is meant
to be a more permanent storage option.

That being said, this is not a default option and therefore should not
be merged into the mainline device-tree.  Our soms and carriers are
designed to be very flexible regarding the assembly options and we try
to mainline device-tree files that represent the most common assembly
options.  Once there is a common accepted mainlining for device-tree
fragments for overlays, that would be the proper place to make this
change.  Although in this case you would also need a custom u-boot so
it is probably best to just handle the change there.  If you would
like touch base with me off list and I can point you at the required
u-boot changes.

Thanks,
Jon

  reply	other threads:[~2018-04-29 14:10 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-22 14:21 Paul Kocialkowski
2018-04-22 14:39 ` Russell King - ARM Linux
2018-04-22 17:22   ` Paul Kocialkowski
2018-04-29 13:47     ` Paul Kocialkowski
2018-04-29 14:09       ` Jon Nettleton [this message]
2018-04-29 15:37         ` Paul Kocialkowski
     [not found]   ` <CABdtJHuE05ea1EPSR916vSEz6gtCirLF77c_PW2N2ofGnzN-bw@mail.gmail.com>
2018-04-22 17:23     ` Paul Kocialkowski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CABdtJHun8DWbr-bUgwQEK61UXMLh5pPkwvUTF+KxhHmJaXEr-A@mail.gmail.com \
    --to=jon@solid-run.com \
    --cc=contact@paulk.fr \
    --cc=devicetree@vger.kernel.org \
    --cc=fabio.estevam@nxp.com \
    --cc=kernel@pengutronix.de \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux@armlinux.org.uk \
    --cc=mark.rutland@arm.com \
    --cc=robh+dt@kernel.org \
    --cc=shawnguo@kernel.org \
    --subject='Re: [PATCH] ARM: dts: imx6qdl-cubox-i: Move card-detect GPIO to 1.5 SOM devices only' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).