AM5728: Mailbox usage

Hello-Kitty

Part Number: AM5728

Hi All,

I have successfully used mailbox for inter-core communication, but the linux driver is written by myself. By calling the write and read functions of the application to implement simple register reading and writing in the driver。After reading the documentation, I found that there are mailbox drivers for the omap series available. I would like to ask how to write an application to call the relevant driver to implement mailbox communication?

Thanks

over 6 years ago

0 Pavel Botev over 6 years ago

TI__Guru**** 170625 points

Hello,

User space applications are beyond the support scope on this forum.

The AM572x mailbox driver is located at:

{PSDK6.01}/board-support/linux-4.19.59/drivers/mailbox/omap-mailbox.c

You can also check below kernel files:

linux-4.19.59/arch/arm/boot/dts/dra7.dtsi

linux-4.19.59/drivers/remoteproc/pru_rproc.c

linux-4.19.59/Documentation/devicetree/bindings/mailbox/omap-mailbox.txt
linux-4.19.59/Documentation/devicetree/bindings/remoteproc/ti,omap-remoteproc.txt
linux-4.19.59/Documentation/devicetree/bindings/remoteproc/ti,pru-rproc.txt
linux-4.19.59/Documentation/devicetree/bindings/soc/ti/wkup_m3_ipc.txt

Check also if below e2e threads will be in help:

https://e2e.ti.com/support/processors/f/791/t/815090

https://e2e.ti.com/support/legacy_forums/embedded/linux/f/354/t/589580

https://e2e.ti.com/support/processors/f/791/t/768930

https://e2e.ti.com/support/processors/f/791/t/652242

https://e2e.ti.com/support/processors/f/791/t/672327

https://e2e.ti.com/support/processors/f/791/t/617809

https://e2e.ti.com/support/legacy_forums/embedded/linux/f/354/t/628923

Regards,
Pavel

Processors

Processors forum

AM5728: Mailbox usage