linux-kernel - Re: [RFC 0/6] mmc: Field Firmware Update

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Message-ID: <CAPDyKFq5wNARNpDMK0_TJ3P64UAsCr_L42sj+JA-k6DdoFBJsw@mail.gmail.com>
Date:	Tue, 22 Dec 2015 09:57:11 +0100
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Holger Schurig <holgerschurig@...il.com>
Cc:	Avi Shchislowski <Avi.Shchislowski@...disk.com>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Alex Lemberg <Alex.Lemberg@...disk.com>,
	Chris Ball <chris@...ntf.net>,
	Baolin Wang <baolin.wang@...aro.org>,
	Gwendal Grignou <gwendal@...omium.org>,
	Grant Grundler <grundler@...omium.org>,
	Seshagiri Holi <sholi@...dia.com>,
	Jon Hunter <jonathanh@...dia.com>,
	Olof Johansson <olofj@...omium.org>
Subject: Re: [RFC 0/6] mmc: Field Firmware Update

+ Olof (forgot to add him last time)

On 22 December 2015 at 09:55, Ulf Hansson <ulf.hansson@...aro.org> wrote:
> + Gwendal, Grant, Olof, Seshagiri, Jon
>
> On 22 December 2015 at 09:15, Holger Schurig <holgerschurig@...il.com> wrote:
>>
>>> Sorry for the delay.
>>
>> No problem, I was busy with many other projects as well.
>>
>>> My advise right now is to try this out via the mmc ioctl in userspace,
>>> yes. Although, if you encounter any issues with that approach that it
>>> might not be reliable, I am open to look into the in-kernel solution
>>> again.
>>
>> I managed to update my Kingston eMMCs with a slighly modified patch to
>> what I submitted. I however didn't bother to submit this, as I saw no
>> chance of getting it applied.
>>
>> Also I once asked in the mailing list if there is some user-space
>> example of how to use the multi-block feature that is supposed to enable
>> this, but I haven't gotten an answer.
>>
>>> Regarding mmc-utils as where I recommend you to implement this, I have
>>> been thinking of moving this tool into the tools directory in the
>>> kernel.
>>
>> Sounds good to me.
>>
>>
>>
>> Remotely related:
>>
>> Do you know that some google people made their own version of mmc-utils
>> for ChromeOS? And the don't seem to give much effort in unification of
>> them?  As if the world wouldn't know how hard it can be to re-unite
>> things again, Google should know from their custom kernels they use on
>> Android ...  Sigh.
>>
>>
>> So you can
>>
>> * git clone git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git
>> * git clone https://chromium.googlesource.com/chromiumos/third_party/mmc-utils
>
> Thanks for sharing the information. Some Chromium folkz has certainly
> been helpful in upstreaming activities, but you are right that there
> is more to be done for mmc utils.
>
> Perhaps by moving the code into the kernel tools dir and finding
> someone who actively wants to maintain it, will enable improved
> upstream activities!?
>
> Kind regards
> Uffe
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