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Date: Mon, 09 Aug 2010 16:13:43 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] Kernel compilation procedures for imx51
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To: flavio.alves@domain.hid
Cc: xenomai@xenomai.org

Flavio Alves wrote:
> Hello,
> 
> I'm still having problems in compiling the kernel with xenomai for the
> imx51.
> 
> I'm having the following error:
> 
>   LD      .tmp_vmlinux1
> arch/arm/plat-mxc/built-in.o: In function `mxc_dvfs_core_probe':
> isp1504xc.c:(.devinit.text+0x334): undefined reference to
> `cpufreq_trig_needed'
> make: *** [.tmp_vmlinux1] Error 1
> 
> The steps used are the indicated at the xenomai patches README. The
> defconfig that I'm using is imx51_defconfig, from the mainstream kernel.

I validated the babbage board with a config derived from this config.

> 
> I know that it is not a xenomai issue, but it is caused when I run make
> menuconfig and disable the CPU frequency scaling feature, in order to
> disable the warning (if the warning is present, xenomai is not
> compiled).

No. The warning is just that: a warning.

-- 
					    Gilles.