ARM64 – Pi3 Still Very Unstable..

I have tried the latest 4.7-next patched kernel, from https://github.com/anholt/linux/tree/bcm2837-64-next After some trials, I did manage to – just – get it to boot – after falling to an ’emergency console’, but the system is very unstable, with multiple recurring … Continue reading

ARM64 – Pi3 Success – Almost..

After more ‘investigation’, I managed to find a working U-Boot for a 64-bit boot of the Raspberry Pi 3, by copying it from the boot directory of this: http://www.tom-yam.or.jp/rpi3/rpi3-arm64-debian-20160414.img.xz found towards the end of the latest 64-bit thread on the … Continue reading

ARM64 – Pi3 64-Bit Tribulations.. Too Soon for Stability..

I had ordered a Raspberry Pi 3 back in March in the hope that it would be a useful exercise in 64-bit on a different chipset..    I was (somewhat) disappointed to find that there was no initial 64-bit support, and … Continue reading

ARM – Pi2 – Kernel 4.4-rc5 – U-Boot Fail, and Workaround..

Recently attempted to update the Pi2 to Kernel 4.4-rc5, and encountered a problem.. The more recent proprietary Raspberry Pi 2 kernels have switched to using ‘DTB Overlays’ to control various components, but these are – currently – unsupported by U-Boot.. … Continue reading

ARM – Pi2 to 4.0 – Eventually..

Finally managed to get the Raspberry Pi2 (armv7) to boot Kernel 4.0, by re-creating the kernel config from scratch, with # make bcm2709_defconfig Fedora release 21 (Twenty One) Kernel 4.0.0-v7 on an armv7l (ttyAMA0) ………… ]# uname -a Linux rgpi2 … Continue reading

ARM – Pi to 4.0.. Patience is a Virtue..?

Tried updating the Raspberry Pi-s (Classic model B and Pi2) to Kernel 4.0, from https://github.com/raspberrypi/linux/tree/rpi-4.0.y, and my first attempt was – it seems – too soon, as the Classic Pi (armv6) failed to boot at all, and the Pi2 (armv7) … Continue reading

ARM – Raspberry Pi and Pi2 – OK with 3.19.3..

After trials with earlier versions, the Pi and Pi2 updated to Kernel 3.19.3 without too much effort.. Source from here:  https://github.com/raspberrypi/linux/tree/rpi-3.19.y Pi: Pidora release 2014 (Raspberry Pi Fedora Remix) Kernel 3.19.3 on an armv6l (ttyAMA0) …….. ]# uname -a Linux … Continue reading

ARM – Raspberry Pi and Pi2 – Trials with Later Kernels..

I had Kernel 3.19.0 (originally from https://github.com/raspberrypi/linux/tree/rpi-3.19.y – now updated) running on my Pi (armv6) and Pi2 (armv7) with no problems (apart from the Pi2 seeming very sluggish..) but after that had a few ‘issues’.. Pi:  Kernel 3.19.1 OK, but … Continue reading

ARM – Raspberry Pi ‘Classic’ – Device Tree Kernel Compile..

After my tests compiling the new armv7 Pi 2 Kernel – with ‘device tree’ – I decided to try the same with the ‘classic’ armv6 Pi (B+).. You will need the latest version of the Pi /boot files, including the … Continue reading

ARM – Raspberry Pi 2 – Kernel Compile..

Finally got the Raspberry Pi 2, and installed Fedora 21 (armv7hl) with no problems..    Temporarily used object code 3.18.7-v7+ from the repository, and then tested kernel compile options.. The system seems (so far..) to be relatively sluggish compared to my … Continue reading