On 05/23/2012 05:43 PM, Chris Stone wrote:
> I am using Xenomai 2.6.0. We wish to run Xenomai on two different
> target boards, one uses the Freescale MPC8378 CPU, which is powerpc,
> the other uses the Freescale MX35 which is arm11. This is for real
> products that are under development, so there are some factors that
> affect our choices. For instance, to simplify maintenance of these
> cards for many years to come, we want to use the same kernel version
> on the MPC8378 as we do on the MX35. For this reason, we chose to use
> kernel 3.0.13, because there are Adeos patches against kernel 3.0.13
> for both arm and powerpc. However, I know that the Adeos patches and
> kernel 3.0.13 are not really supported by Xenomai 2.6.0 because they
> are only in the Git tree and not in the official tarball download.
> Nonetheless, the powerpc target has been running with no problem for
> some time now, and the card is actually in product verification now,
> which means that testing has not discovered any problems with Xenomai
> 2.6.0 on that target. I am now attempting bring Xenomai up on the
> mx35 card.
>
> I am using the adeos patch adeos-ipipe-3.0.13-arm-1.18.08.patch. I
> tried following the README for the MXC, but the Freescale IMX git has
> no tag rel_imx_3.0.15_12.03.00. The denx tree has the tag, but the
> mxc patches as described in the README do not apply without errors.
> Even after fixing the patch rejects, I ended up with compilation
> errors, so I lost confidence in that approach.
This should not happen. This combination has been extensively tested on
imx51, imx53 and imx6. It should compile and you should get no rejects.
I will look into it.
> So, I applied the
> adeos-ipipe-3.0.13-arm-1.18.08.patch to the kernel.org 3.0.13 kernel,
> without the pre and post patches, which went without error. The
> kernel boots, and many things work, but the FEC Ethernet is broken
> with an MDIO read timeout.
Do you also get the MDIO timeout without the I-pipe and Xenomai patches?
If no, try applying the patch but not enabling CONFIG_IPIPE, then
enabling CONFIG_IPIPE without CONFIG_XENOMAI.
--
Gilles.
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