SW: mikroBUS over Greybus

Hi @jadonk,

Temporarily adding this issue to track mikroBUS over Greybus steps to reproduce, not able to reproduce the buildroot setup still and is failing as before, can you point me on how I should update the beagleconnect repo for steps to repoduce the results?

For now an out of tree Greybus+mikroBUS modules are available/patches are added to bb-kernel repo, the changes are being added here:

Greybus/mikroBUS Patches : https://github.com/vaishnav98/bb-kernel/commit/711db11fe3bb48c8caa4ac35fb0e0d54cf86a574
Out of Tree Module (Greybus + mikroBUS) : https://github.com/vaishnav98/greybus/tree/mikrobus_over_greybus
Zephyr changes: https://github.com/vaishnav98/greybus-for-zephyr/tree/mikrobus

Devices are described over Zephyr DT, the device tree binding for the same is available here: https://github.com/vaishnav98/greybus-for-zephyr/blob/mikrobus/dts/bindings/greybus/zephyr%2Cgreybus-device.yaml

The overlay for SensorTag sample(both UART, NET[2.4G] tested) adds the devices on board(OPT3001) and few added Click Boards, all the devices were tested in Polling/no IRQ mode.

Once the changes are taken the steps to reproduce are very similar to the normal Greybus Sample(mikrobus needs to be probed at host additionally) For build and flash TCP/IP NET 2.4GHz Sample:

west build -t flash -p always -b cc1352r_sensortag ../greybus/samples/subsys/greybus/net -- -DOVERLAY_CONFIG=overlay-802154.conf -DCONFIG_NET_CONFIG_IEEE802154_DEV_NAME="\"IEEE802154_0\"" -DCONFIG_IEEE802154_CC13XX_CC26XX=y -DCONFIG_IEEE802154_CC13XX_CC26XX_SUB_GHZ=n

For build and flash UART Sample:

west build -t flash -p always -b cc1352r_sensortag ../greybus/samples/subsys/greybus/uart

At host:

gbidge -p /dev/ttyACM0 -b 115200

Here is a quick demo with PocketBeagle + ATUSB and CC1352R SensorTag : https://youtu.be/JKrCRRuCw3c?t=143

TODO:

GPIO Mapping from Greybus GPIO Chip to mikroBUS port GPIOs.
SPI Chip Select Mapping.
Reading manifest from Click ID NVMEM and Patching Base Manifest.

jadonk / beagleconnect

SW: mikroBUS over Greybus #48