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feat(linux): AM62DX: Add doc for IPC
Add doc for IPC for AM62D. Signed-off-by: Paresh Bhagat <p-bhagat@ti.com>
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‎configs/AM62DX/AM62DX_linux_toc.txt‎

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@@ -69,6 +69,7 @@ linux/Foundational_Components_Tools
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linux/Foundational_Components/Tools/Development_Tools
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linux/Foundational_Components/Tools/Pin_Mux_Tools
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linux/Foundational_Components/Tools/Flash_via_Fastboot
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linux/Foundational_Components_IPC62dx
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linux/Foundational_Components_ATF
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linux/Foundational_Components_OPTEE
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‎source/linux/Foundational_Components.rst‎

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@@ -23,6 +23,7 @@ Foundational Components
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Foundational_Components_IPC_J722S
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Foundational_Components_IPC62x
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Foundational_Components_IPC62ax
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Foundational_Components_IPC62dx
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Foundational_Components_IPC62px
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Foundational_Components_IPC64x
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Foundational_Components_IPCLLD

‎source/linux/Foundational_Components/IPC/_RPMsg_char_driver.rst‎

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@@ -266,10 +266,10 @@ rpmsg_char_close()
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+------------------+--------------------+---------+-----------------------------------+
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.. ifconfig:: CONFIG_part_variant in ('AM62AX')
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.. ifconfig:: CONFIG_part_variant in ('AM62AX','AM62DX')
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The below table lists the device enumerations as defined in the
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rpmsg_char_library. The validity of the enumerations wrt AM62Ax is also
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rpmsg_char_library. The validity of the enumerations wrt |__PART_FAMILY_NAME__| is also
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specified.
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.. code-block:: text
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TEST STATUS: PASSED
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.. ifconfig:: CONFIG_part_variant in ('AM62DX')
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.. code-block:: console
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# MCU R5F<->A53_0 IPC
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root@am62dxx-evm:~# rpmsg_char_simple -r0 -n10
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Created endpt device rpmsg-char-0-990, fd = 3 port = 1025
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Exchanging 10 messages with rpmsg device rpmsg-char-0-990 on rproc id 0 ...
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Sending message #0: hello there 0!
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Receiving message #0: hello there 0!
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Sending message #1: hello there 1!
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Receiving message #1: hello there 1!
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Sending message #2: hello there 2!
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Receiving message #2: hello there 2!
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Sending message #3: hello there 3!
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Receiving message #3: hello there 3!
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Sending message #4: hello there 4!
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Receiving message #4: hello there 4!
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Sending message #5: hello there 5!
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Receiving message #5: hello there 5!
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Sending message #6: hello there 6!
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Receiving message #6: hello there 6!
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Sending message #7: hello there 7!
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Receiving message #7: hello there 7!
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Sending message #8: hello there 8!
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Receiving message #8: hello there 8!
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Sending message #9: hello there 9!
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Receiving message #9: hello there 9!
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Communicated 10 messages successfully on rpmsg-char-0-990
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TEST STATUS: PASSED
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# for DM R5F<->A53 IPC, use the below command. For remote proc ids, please refer to : 'https://git.ti.com/cgit/rpmsg/ti-rpmsg-char/tree/include/rproc_id.h'
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root@am62dxx-evm:~# rpmsg_char_simple -r15 -n10
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Created endpt device rpmsg-char-15-995, fd = 3 port = 1025
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Exchanging 10 messages with rpmsg device rpmsg-char-15-995 on rproc id 15 ...
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Sending message #0: hello there 0!
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Receiving message #0: hello there 0!
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Sending message #1: hello there 1!
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Receiving message #1: hello there 1!
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Sending message #2: hello there 2!
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Receiving message #2: hello there 2!
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Sending message #3: hello there 3!
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Receiving message #3: hello there 3!
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Sending message #4: hello there 4!
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Receiving message #4: hello there 4!
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Sending message #5: hello there 5!
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Receiving message #5: hello there 5!
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Sending message #6: hello there 6!
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Receiving message #6: hello there 6!
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Sending message #7: hello there 7!
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Receiving message #7: hello there 7!
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Sending message #8: hello there 8!
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Receiving message #8: hello there 8!
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Sending message #9: hello there 9!
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Receiving message #9: hello there 9!
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Communicated 10 messages successfully on rpmsg-char-15-995
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TEST STATUS: PASSED
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# C7x<->A53_0 IPC
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root@am62dxx-evm:~# rpmsg_char_simple -r8 -n10
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Created endpt device rpmsg-char-8-998, fd = 3 port = 1025
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Exchanging 10 messages with rpmsg device rpmsg-char-8-998 on rproc id 8 ...
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Sending message #0: hello there 0!
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Receiving message #0: hello there 0!
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Sending message #1: hello there 1!
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Receiving message #1: hello there 1!
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Sending message #2: hello there 2!
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Receiving message #2: hello there 2!
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Sending message #3: hello there 3!
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Receiving message #3: hello there 3!
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Sending message #4: hello there 4!
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Receiving message #4: hello there 4!
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Sending message #5: hello there 5!
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Receiving message #5: hello there 5!
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Sending message #6: hello there 6!
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Receiving message #6: hello there 6!
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Sending message #7: hello there 7!
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Receiving message #7: hello there 7!
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Sending message #8: hello there 8!
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Receiving message #8: hello there 8!
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Sending message #9: hello there 9!
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Receiving message #9: hello there 9!
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Communicated 10 messages successfully on rpmsg-char-8-127180
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TEST STATUS: PASSED
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.. rubric:: RPMsg kernel space example
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The kernel space example is in the Linux Processor SDK under
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[ 2081.878713] rpmsg_client_sample virtio2.ti.ipc4.ping-pong.-1.13: incoming msg 10 (src: 0xd)
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[ 2081.887258] rpmsg_client_sample virtio2.ti.ipc4.ping-pong.-1.13: goodbye!
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.. ifconfig:: CONFIG_part_variant in ('AM62DX')
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.. code-block:: console
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root@am62dxx-evm:~# modprobe rpmsg_client_sample count=10
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[ 180.532155] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: new channel: 0x401 -> 0xd!
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[ 180.532359] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 1 (src: 0xd)
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[ 180.532457] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: new channel: 0x401 -> 0xd!
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[ 180.532495] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 1 (src: 0xd)
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[ 180.532571] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 2 (src: 0xd)
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[ 180.532599] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 3 (src: 0xd)
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[ 180.532626] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 4 (src: 0xd)
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[ 180.532640] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: new channel: 0x401 -> 0xd!
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[ 180.532654] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 5 (src: 0xd)
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[ 180.532687] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 6 (src: 0xd)
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[ 180.532711] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 7 (src: 0xd)
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[ 180.532741] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 8 (src: 0xd)
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[ 180.532780] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 2 (src: 0xd)
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[ 180.532822] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 1 (src: 0xd)
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[ 180.532853] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 2 (src: 0xd)
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[ 180.532887] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 9 (src: 0xd)
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[ 180.532915] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: incoming msg 10 (src: 0xd)
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[ 180.532921] rpmsg_client_sample virtio1.rpmsg-client-sample.-1.13: goodbye!
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[ 180.532940] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 3 (src: 0xd)
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[ 180.533007] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 4 (src: 0xd)
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[ 180.533047] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 3 (src: 0xd)
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[ 180.533075] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 5 (src: 0xd)
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[ 180.533109] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 6 (src: 0xd)
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[ 180.533141] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 7 (src: 0xd)
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[ 180.533171] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 8 (src: 0xd)
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[ 180.533202] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 9 (src: 0xd)
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[ 180.533238] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: incoming msg 10 (src: 0xd)
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[ 180.533244] rpmsg_client_sample virtio2.rpmsg-client-sample.-1.13: goodbye!
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[ 180.533264] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 4 (src: 0xd)
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[ 180.533487] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 5 (src: 0xd)
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[ 180.533766] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 6 (src: 0xd)
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[ 180.534000] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 7 (src: 0xd)
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[ 180.534216] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 8 (src: 0xd)
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[ 180.534433] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 9 (src: 0xd)
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[ 180.534654] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: incoming msg 10 (src: 0xd)
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[ 180.534660] rpmsg_client_sample virtio0.rpmsg-client-sample.-1.13: goodbye!

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