msm8916-openwrt/readme.md

WRT for uz801

These are my attempts at building the os... my end goal is to build a working modern openwrt, but first I will start from immortalwrt from lkiuyu and the from official immortalwrt.

lkiuyu/immortalwrt

• Using msm-firmware-loader:
  • Working if manually enabled, as it seems that asks for wifi driver before persist is mounted.

      echo start > /sys/class/remoteproc/remoteproc0/state
      echo start > /sys/class/remoteproc/remoteproc1/state
    

  • https://gitlab.postmarketos.org/postmarketOS/msm-firmware-loader/
  • Investigate if this can be replicated in wrt:

      #!/sbin/openrc-run
    
      name="MSM Firmware Loader"
      description="Load firmware that is located on dedicated partitions of qcom devices"
    
      depend() { # <-----------------
        need sysfs devfs
        before udev
      }
    
      start() {
        ebegin "Starting msm-firmware-loader"
        # This script must be executed before udev, block other services until it's done.
        /usr/sbin/msm-firmware-loader.sh
        eend $?
      }
    

• Revert back to bundling the firmwares...

TODO:

• Modem does not register...
• Use msm-firmware-loader instead of bundling firmware.
  • There is no easy way to load the partitions before kernel looks for them... so dumps instead of ln msm-firmware-dumper and then restart...
• msm8916-usb-gadget:
  • Check serial and ums!
• ucify the uz801-tweaks... see usb0 network setup!
• Recover GHA build pipeline
• Use built dtb from openstick-builder?

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Stuff

• The msm8916-yiming-uz801v3.dtb file is a prebuilt dtb extracted from one of the many OpenStick-Builder project living in Github.