OpenThread platform integration in BPI R4 with silabs

Scope

Goal is to understand and bringup required platform for supporting thread in RDK-B Bananapi R4 with silabs module

Hardware used

• BRD2703A

Highlevel block

• otbr

Kernel side changes

• Minimal kernel modules

  • CONFIG_USB_ACM=y

    • drivers/usb/class/Makefile

    • Description - ACM support for UART communication

  • CONFIG_TUN=y

    • drivers/net/tap.c

    • Description - TUN generic  support 

  • CONFIG_IEEE802154=y

    • net/ieee802154

    • Description - Generic IEEE802154

  • CONFIG_MAC802154=y

    • net/mac802154

    • Description - Generic MAC layer for IEEE802154

User space code changes

• cpcd

  • https://gerrit.teamccp.com/plugins/gitiles/rdk/yocto_oe/layers/meta-rdk-comcast-broadband/+/refs/heads/25Q1_sprint/recipes-connectivity/cpcd

• otbr-agent

  • https://gerrit.teamccp.com/#/c/887931/

Yocto changes

• Image install changes in BPI

  • otbrinstall11