[meta-freescale] Freescale Linux kernel 3.10.17_1.0.0_beta

Otavio Salvador otavio at ossystems.com.br
Mon Dec 30 12:17:26 PST 2013

On Mon, Dec 30, 2013 at 5:51 PM, Fabio Estevam <festevam at gmail.com> wrote:
> On Mon, Dec 30, 2013 at 5:37 PM, John Weber <rjohnweber at gmail.com> wrote:
>>> I think this is a great idea but I believe we ought to make this for
>>> all boards so we have it uniform across the boards; otherwise we'll
>>> have a mix and it makes the support harder.
> Yes, in mainline U-boot I plan to convert them all at once.

Please do one commit per board; so it is easier to revert (if needed).

>>> Considering we'd target this for 1.6, what would be the conversion plan?
>>> Who could be responsible for each board for converting/testing?
>> Not sure, my thought was to leave it to the board maintainers. Unless I'm
>> mistaken (which is a possibility), for some reason uImage does not work when
>> booting with the 3.10.X kernels.  It that is the case then we either need to
>> figure out the problem with uImages or others will be forced to use zImage
>> anyway.
> I managed to boot FSL imx_3.10.9_1.0.0_alpha with mainline U-boot.

Me too; All customer-kernels I've been doing (based on 3.10) been
using zImage and it works quite well. Did you test older kernels
(3.0.35 and 2.6.35, for example)?

> Haven't tested imx_3.10.17_1.0.0_beta yet, but I can try it next week.
> Even if we manage to get imx_3.10.17_1.0.0_beta booting fine with
> uImage, I still think that booting the zImage makes sense, as it can
> avoid user errors by passing incorrect LOADADDR.

I like this as a goal but this is not a simple change for the BSP; we
need to make it work for both supported kernels and test both. The
ideal would be to have all boards using zImage but we have a long way
for this...

Even if we convert all boards to zImage we need to keep support for
uImage as customers may be using it for their internal boards.

Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750

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