Keystone 2: no interrupts received (out of 80 and 92)

Bertrand Marquis

Hi,

We have ported our micro-kernel to the TI-keystone board successfully but we don't receive any interrupt from the serial line.

We have an hardware virtualized linux Running on top and having access to all IO/Irqs, it is booting successfully, has timer interrupts, but only receives interrupts 80 and 92 (which are coming from hwqueue). None of the other expected interrupts (serial line, ethernet or other) is coming.

We checked and all interrupts are correctly unmasked in the GIC controller.

Documentations are mentionning some IPs with which interrupts are routed, but they all seem to be for the DSP interrupts.

Is there anything specific to keystone 2 to activates interrupts (ie in comparison to other A15 boards like OMAP5 for example).

Thanks in advance

Bertrand

over 9 years ago

0 Raja over 9 years ago

TI__Guru* 81335 points

Hi Bertnard,

As of now, I do not find any document for keystone 2 ARM interrupts. You can also look at the GIC driver available in Linux for now,

http://processors.wiki.ti.com/index.php/MCSDK_UG_Chapter_Exploring#GIC_irq_chip_driver

I will check with team and get back to you on this.

You can also refer below thread,

https://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/367524/1293978

Thank you.

0 Bertrand Marquis over 9 years ago in reply to Raja

Prodigy 40 points

Hi,
We found out that interrupts are coming but the interrupt number received is always 1023.
Apparently this was because the serial interrupt needs a front and not a level.

Do you have somewhere a list saying per ARM core interrupt which one must be configured for level interrupt and which one must be configured for front ?

Regards

Bertrand

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Keystone 2: no interrupts received (out of 80 and 92)