MCC support for kernel 4.1

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MCC support for kernel 4.1

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Senior Contributor II

Hello,

Multi-Core Communication  functionnalities will be supported in 4.1 kernel?

Regards,

Emmanuel

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Community Manager
This an automatic process.

We are marking this post as solved, due to the either low activity or any reply marked as correct.

If you have additional questions, please create a new post and reference to this closed post.

NXP Community!

View solution in original post

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Contributor I

Dear timesyssupport,

I've been trying to execute a previously working MQX 4.1.1 application on the M4 core of a VF61 module. This application was using MCC v1 and worked properly on a system running linux kernel 3.0.15.

Now I'm using a system running linux kernel 4.1.15 and MCC v1, and trying to run the same MQX 4.1.1 application, but it is not running.

From what I've read above, isn't it possible to run this MQX application the way I'm trying? Do I need to use MCC v2 with linux kernel 4.1?

Thanks in advance.

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Senior Contributor II

Hi Julen,

What is the source for your Linux v4.1.15 kernel? Please share and we can determine if MCC support is present in it.

Thanks,

Timesys Support

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Contributor I

Hi,

I already solved the problem.

The sources were taken from Toradex and MCC support is present in it. The thing was that some initializations for some peripherals that were properly done with the previous kernel/u-boot, weren't done in this kernel/u-boot.

After changing u-boot sources in order to enable clocks and initialize those peripherals code wasn't getting stuck anymore and the execution went through.

Thanks for your interest,

Julen.

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Senior Contributor II

I have attached mcc-kmod v2.1 sources that we have used with a Vybrid platform running Linux v4.1 and MQX 4.2.0. Note that these sources are provided as-is.

Thanks,

Timesys Support

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Senior Contributor IV

Dear Timesys Support,

some dependencies are missing, for example vf610-mscm.h. I'm unable to find it in any known sources. Is there some public accessible 4.1 repository, which is the right kernel source for compiling your mcc-kmod-2.1.0.1.tar.bz2 ?

Thanks

Edward

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Senior Contributor II

Hi Edward,

Sorry for the late response - we don't have a public accessible source repository for this kernel, I have attached the missing source though. Let me know if you need anything else.

Thanks,

Timesys Support

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Contributor I

Hi Timesys Support,

Is there an mcc implementation for i.MX6sx processor and linux kernel v4.1?

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Senior Contributor IV

Timesys Support,

thanks for these files and sorry for delay. Now it compiles with linker warning for missing symbols from irq-vf610-mscm-ir.c If I replace this irq*.c driver in kernel sources, compiling kernel I get complain about missing #include "irqchip.h". If I replace this include with existing "Linux/irqchip.h", then I get more errors :-(

  CC      drivers/irqchip/irq-vf610-mscm-ir.o
drivers/irqchip/irq-vf610-mscm-ir.c: In function 'vf610_mscm_ir_domain_alloc':
drivers/irqchip/irq-vf610-mscm-ir.c:170:30: error: 'struct irq_domain' has no member named 'of_node'
  gic_data.np = domain->parent->of_node;
                              ^
drivers/irqchip/irq-vf610-mscm-ir.c: In function 'vf610_mscm_ir_of_init':
drivers/irqchip/irq-vf610-mscm-ir.c:318:44: error: 'struct irq_domain' has no member named 'of_node'
  if (of_device_is_compatible(domain->parent->of_node, "arm,armv7m-nvic"))
                                            ^
make[2]: *** [drivers/irqchip/irq-vf610-mscm-ir.o] Error 1
make[1]: *** [drivers/irqchip] Error 2
make: *** [drivers] Error 2

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NXP Apps Support
NXP Apps Support

Thank timesyssupport​ for let us know. Waiting for your comments

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NXP Apps Support
NXP Apps Support

timesyssupport​ do you have an update of this case?

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Senior Contributor II

Hi Karina,

It is looking like official support for MCC for mainline Linux will be pushed to Q3, in the meantime, we will share MCC v2.x Linux kernel module sources as-is in the next two weeks that we have tested on a Vybrid platform with Linux v4.1.

Thanks,

Timesys Support

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NXP Apps Support
NXP Apps Support

timesyssupport​ do you have an estimated due date?

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Senior Contributor II

Hi Karina,

We are still targeting end of Q2 for this work.

Thanks,

Timesys Support

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NXP Apps Support
NXP Apps Support

timesyssupport​ do you have an update?

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Senior Contributor II

Hi Karina,

The patches are not yet available, we will update the thread once the work has been completed.

Thanks,

Timesys Support

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NXP Apps Support
NXP Apps Support

timesyssupport​ do you have an estimated due date?

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Senior Contributor II

Hi Karina,

We are roughly targeting end of Q2, we will provide patches should they be available sooner.

Thanks,

Timesys Support

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NXP Apps Support
NXP Apps Support

timesyssupport​ please continue with the follow up.

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Senior Contributor II

Hi Emmanuel,

We are planning to make a release of the MCC v2.x kernel modules targeting mainline Linux kernel and linux-fslc v4.4 from meta-fsl-arm, roughly by end of Q2. Let me know if you have any questions.

Thanks,

Timesys Support