[meta-freescale] [meta-fsl-arm PATCH 4/4] mxs-base.inc: Add default settings for UBI filesystem generation

[Daiane Angolini]

On Wed, Sep 18, 2013 at 9:32 AM, Eric Bénard <eric at eukrea.com> wrote:
> Hi Otavio,
>
> Le Wed, 18 Sep 2013 09:23:22 -0300,
> Otavio Salvador <otavio at ossystems.com.br> a écrit :
>
>> On Tue, Sep 17, 2013 at 7:10 PM, Eric Bénard <eric at eukrea.com> wrote:
>> > Hi Otavio,
>> >
>> > Le Tue, 17 Sep 2013 18:30:34 -0300,
>> > Otavio Salvador <otavio at ossystems.com.br> a écrit :
>> >
>> >>  physical eraseblock size = 256KiB
>> >>  logical eraseblock size = 258048
>> >>  smallest flash I/O unit = 2048
>> >>  VID header offset = 2048
>> >>  available PEB = 966
>> >>
>> >> For a more detailed howto, please see
>> >> https://community.freescale.com/docs/DOC-1579
>> >>
>> >> Change-Id: I7f6d74064f62e53d21a66417fef95c22e9996d4d
>> >> Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
>> >> ---
>> >>  conf/machine/include/mxs-base.inc | 3 +++
>> >>  1 file changed, 3 insertions(+)
>> >>
>> >> diff --git a/conf/machine/include/mxs-base.inc b/conf/machine/include/mxs-base.inc
>> >> index c0681f7..9d16d20 100644
>> >> --- a/conf/machine/include/mxs-base.inc
>> >> +++ b/conf/machine/include/mxs-base.inc
>> >> @@ -25,4 +25,7 @@ XSERVER = "xserver-xorg \
>> >>  # Ship kernel modules
>> >>  MACHINE_EXTRA_RRECOMMENDS = "kernel-modules"
>> >>
>> >> +MKUBIFS_ARGS = "-m 2048 -e 129024 -c 2030"
>> >> +UBINIZE_ARGS = "-m 2048 -p 128KiB -s 512"
>> >> +
>> > Did you really test this on a mxs based board ?
>> > If yes with which CPU and which NAND flash ?
>> >
>> > At least one parameter (-s 512) is not synchronous with the log you
>> > provide in the comment.
>> >
>> > Moreover these settings are CPU and NAND flash dependent so I don't
>> > think they belong to mxs-base.inc but to each board file according to
>> > the flash which is populated.
>>
>> Agreed.  I will send a new version of this.
>>
>> I had this for loooooong time in my queue and I recall to try it, but
>> not lately. I will also extend the commit log and move it to mx28evk
>> board.
>>
> no these values are wrong as they come from an i.MX35 tutorial so that
> won't work on an i.MX28EVK (moreover this board hasn't any NAND
> populated by default so the values will depend on the NAND flash the
> user puts in the socket - here I tested with 2k and 4k flashes).
>
> So if you can't test it please don't add default values.

If not use default values, what do you suggest?

Even if we can test it (I think I have access to one NAND to attach on imx28)
it will be only *one* NAND

We have this problem for, at least, all auto/ARD boards.



Daiane