sson
> Cc: Alex Lemberg; linux-mmc@vger.kernel.org; c...@laptop.org; Grant
> Grundler; Avi Shchislowski; Gwendal Grignou (gwen...@chromium.org)
> Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
>
> Hi, Ulf
>
> the data we expected to write in my case is about 2
Hi, Ulf
the data we expected to write in my case is about 288KB.
BTW, Alex's FFU flow already implemented on my platform which using
exynos SoC without problem.
Thanks,
Hsinhsiang
2014-09-01 19:27 GMT+08:00 Ulf Hansson :
> On 1 September 2014 11:26, Alex Lemberg wrote:
>> [snip]
>>
>>> My concl
On 1 September 2014 11:26, Alex Lemberg wrote:
> [snip]
>
>> My conclusion from that is (correct me if I am wrong, since it may be vendor
>> specific), that only minor modifications should be needed to the mmc ioctl.
>> We
>> need to add special treatment for when "cmd.opcode ==
>> MMC_FFU_DOWNLO
[snip]
> My conclusion from that is (correct me if I am wrong, since it may be vendor
> specific), that only minor modifications should be needed to the mmc ioctl. We
> need to add special treatment for when "cmd.opcode ==
> MMC_FFU_DOWNLOAD_OP". In such scenario the following sequence needs to
>
t: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
>
> [snip]
>
> >> >> By just browsing through the code for preparing and handling the
> >> >> mmc data request in the above functions, I find quite some
> >> >> duplication of code fr
[snip]
>> >> By just browsing through the code for preparing and handling the mmc
>> >> data request in the above functions, I find quite some duplication of
>> >> code from the card/*.c files. Could we maybe share some code between
>> >> these layers to avoid duplications, and thus errors?
>> >
>
PM
> >> To: Avi Shchislowski; Grant Grundler; Alex Lemberg
> >> Cc: linux-mmc@vger.kernel.org; c...@laptop.org
> >> Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
> >>
> >> On 16 July 2014 17:47, Avi Shchislowski
> >>
> >>
mmc@vger.kernel.org; c...@laptop.org
>> Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
>>
>> On 16 July 2014 17:47, Avi Shchislowski
>> wrote:
>> > The Field Firmware Update (FFU) feature is new for eMMC 5.0 spec (Jedec:
>> JESD84-B50.pdf)
>>
Hi Ulf,
> -Original Message-
> From: Ulf Hansson [mailto:ulf.hans...@linaro.org]
> Sent: Wednesday, August 13, 2014 3:47 PM
> To: Avi Shchislowski; Grant Grundler; Alex Lemberg
> Cc: linux-mmc@vger.kernel.org; c...@laptop.org
> Subject: Re: [RFC PATCH 1/1 v8]mmc: Support
On 16 July 2014 17:47, Avi Shchislowski wrote:
> The Field Firmware Update (FFU) feature is new for eMMC 5.0 spec (Jedec:
> JESD84-B50.pdf)
>
> http://www.jedec.org/standards-documents/technology-focus-areas/flash-memory-ssds-ufs-emmc/e-mmc
>
> An ioctl has been added to provide the new firmwa
emberg
Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
Hi, Avi,
I have another question want to consult, In your patch, after download the
required firmware file, and back to normal mode.
you will /* check that the eMMC has received the payload */ b
;> Avi.
>>
>>
>> -Original Message-
>> From: Gwendal Grignou [mailto:gwen...@google.com]
>> Sent: Wednesday, July 30, 2014 3:32 AM
>> To: Gwendal Grignou
>> Cc: Avi Shchislowski; linux-mmc@vger.kernel.org; c...@laptop.org; Grant
>> Grundler; Alex
> From: Gwendal Grignou [mailto:gwen...@google.com]
> Sent: Wednesday, July 30, 2014 3:32 AM
> To: Gwendal Grignou
> Cc: Avi Shchislowski; linux-mmc@vger.kernel.org; c...@laptop.org; Grant
> Grundler; Alex Lemberg
> Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
>
>
Grignou [mailto:gwen...@google.com]
Sent: Wednesday, July 30, 2014 3:32 AM
To: Gwendal Grignou
Cc: Avi Shchislowski; linux-mmc@vger.kernel.org; c...@laptop.org; Grant
Grundler; Alex Lemberg
Subject: Re: [RFC PATCH 1/1 v8]mmc: Support-FFU-for-eMMC-v5.0
I take it back, we can still use the 2 ioctl
I take it back, we can still use the 2 ioctl approach:
We just need to remove the mmc_send_ext_csd() between the calls to set
MMC_FFU_MODE_SET and MMC_FFU_MODE_NORMAL.
Your patch v7 did not have this error, I introduced it in the comments
I made on v7.
Gwendal.
On Tue, Jul 29, 2014 at 5:14 PM, Gw
Avi,
We should revisit the 2 ioctls approach: Accroding to the spec:
"""When in FFU_MODE and host sends other commands which are not part
of the recommended flow, device behavior may be undefined."""
To be safe, no command should be sent to the device which are not
strictly necessary for the downl
Avi,
The patch still does not work for me. After the upgrade, the eMMC is
not in a good state timing out every IOs. A power cycle fixes the
problem.
I am investigating how the reset patch is working.
Gwendal.
On Wed, Jul 16, 2014 at 8:47 AM, Avi Shchislowski
wrote:
>
> The Field Firmware Updat
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