GhostBSD ARM64 porting from x86 code base (RISC-V in the future??)

WiFI SDIO Broadcom, Infineon 43455,  Notes to learn from for FreeBSD / GhostBSD-Arm64 https://wiki.gentoo.org/wiki/Raspberry_Pi4_64_Bit_Install#WiFi WiFi WiFi needs three firmware files from in /lib/firmware/brcm/ : brcmfmac43455-sdio.bin brcmfmac43455-sdio.clm_blob brcmfmac43455-sdio.txt Which is almost but not quite the same as the Pi3. The catch is in brcmfmac43455-sdio.txt where grep boardflags3 produces different results for the Pi3 and Pi4 files. The Pi4 version returns boardflags3=0x44200100 The Pi3 version returns boardflags3=0x48200100 With the wrong brcmfmac43455-sdio.txt file, bluetooth will work but not WiFi. These files, including the Pi 4 version of above file, are found in sys-firmware/raspberrypi-wifi-ucode , to install it you'll also need to install sys-kernel/linux-firmware with the savedconfig USE flag and remove the conflicting files from the saved configuration, and then re-emerge linux-firmware to apply the new de-conflicted saved configuration: /...

Raspberry Pi 4 Device Tree compile and setup August 6, 2023 My AIM is too add a Serial Port 3 UART Device Tree Overlay for a Adafruit.com GPS device https://forums.raspberrypi.com/viewtopic.php?t=244827   DT Overlay enable 5 serial ports;  Pi-4 Activating additional UART ports https://learn.adafruit.com/adafruit-ultimate-gps/overview We carry a few different GPS modules here in the Adafruit shop, but none that satisfied our every desire - that's why we designed this little GPS breakout board. We believe this is the  Ultimate  GPS module, so we named it that. It's got everything you want and more: https://www.adafruit.com/product/790 Description For those who want to integrate our awesome Ultimate GPS module into their own projects, we now have the raw sub-module available. Don't be fooled by it's small size, this is a very sensitive, high quality GPS module with all the extras you could want and more at under 6 grams! As of October 12, 2022  -  the original...