openwrt/target/linux/bcm27xx
Stijn Tintel e9f9cd14cc bcm27xx: add support for Raspberry Pi Zero 2
Due to licensing uncertainty, we do not include the firmwares for the
wireless chips used in the Raspberry Pi Zero 2 W. To have working
wireless, follow the instructions below.

For people building their own images:

  mkdir -p files/lib/firmware/brcm
  wget -P files/lib/firmware/brcm/ https://github.com/RPi-Distro/firmware-nonfree/raw/bullseye/debian/config/brcm80211/brcm/brcmfmac43436-sdio.bin
  wget -P files/lib/firmware/brcm/ https://github.com/RPi-Distro/firmware-nonfree/raw/bullseye/debian/config/brcm80211/brcm/brcmfmac43436-sdio.txt
  wget -P files/lib/firmware/brcm/ https://github.com/RPi-Distro/firmware-nonfree/raw/bullseye/debian/config/brcm80211/brcm/brcmfmac43436s-sdio.bin
  wget -P files/lib/firmware/brcm/ https://github.com/RPi-Distro/firmware-nonfree/raw/bullseye/debian/config/brcm80211/brcm/brcmfmac43436s-sdio.txt

Now build the OpenWrt image as usual, and it will include the firmware
files in the correct location.

For people using ext4 images:

Write the ext4 image to the sdcard, then mount the 2nd partition and put
the firmware files from the links above in /lib/firmware/brcm relative
from the mount point where the partition is mounted.

For people using squashfs images:

Write the squashfs image to the sdcard, place it in the Raspberry Pi
Zero 2 W, boot it and wait for the overlay filesystem to be created.
Find the offset of the overlay filesystem in sysfs:

  # cat /sys/devices/virtual/block/loop0/loop/offset
  25755648

Shut down the device, unplug the power and move the SD card to a Linux
computer. Mount the 2nd partition of the sdcard as a loop device with
the offset found earlier.

  sudo mount /dev/sdh2 -o loop,offset=25755648 /mnt/temp

Put the firmware files from the links above in /upper/lib/firmware/brcm
relative to the mount point where the loop device is mounted.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Tested-by: Peter van Dijk <peter@7bits.nl>
2022-07-01 12:56:56 +03:00
..
base-files bcm27xx: add support for Raspberry Pi Zero 2 2022-07-01 12:56:56 +03:00
bcm2708 generic: enable CRYPTO_LIB_BLAKE2S[_X86|_ARM] 2022-06-24 17:10:24 +02:00
bcm2709 generic: enable CRYPTO_LIB_BLAKE2S[_X86|_ARM] 2022-06-24 17:10:24 +02:00
bcm2710 generic: enable CRYPTO_LIB_BLAKE2S[_X86|_ARM] 2022-06-24 17:10:24 +02:00
bcm2711 generic: enable CRYPTO_LIB_BLAKE2S[_X86|_ARM] 2022-06-24 17:10:24 +02:00
image bcm27xx: add support for Raspberry Pi Zero 2 2022-07-01 12:56:56 +03:00
modules bcm27xx: add pwm-fan dependency to RPi PoE 2022-05-22 22:06:13 +02:00
patches-5.15 kernel: bump 5.15 to 5.15.47 2022-06-27 00:57:16 +02:00
Makefile bcm27xx: switch to 5.15 2022-05-17 15:11:23 +02:00
modules.mk target: use SPDX license identifiers on Makefiles 2021-02-10 15:47:18 +01:00