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Category Archives: aarch64

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Hardware – UART Gotcha for SOCs….

Adventures With Linux ™ Posted on July 14, 2023 by RGJuly 14, 2023

Not specifically Linux-related, but a frustration nonetheless.. This is documented elsewhere, but is often buried in other posts/articles/opinions.. Connecting a UART/USB cable/adapter to a SOC should be relatively simple, except that certain vendors now insist on a default speed of 1500000 instead of the traditional 115200.. I have been testing one of the ‘new’ RK3588-based systems, and … Continue reading →

Posted in aarch64, arm, ARM64, hardware, Opinion, serial console, UART | Tagged ft232 is ok, garbage, pl2303 fails, rk3588, solution, uart | Leave a reply

ARM64 – Rock Pi N10 – Finally Booting From NVME..

Adventures With Linux ™ Posted on July 5, 2023 by RGJuly 5, 2023

I had managed to get Fedora running on my Rock Pi N10 some considerable time ago, but still was frustrated by the – apparent – lack of support for NVME, despite the slot for one in the chassis, and u-boot commands included..  I had posted this question to the RADXA Forum, but did not get a useful … Continue reading →

Posted in aarch64, ARM64, Fedora, fixed, Hacks, Linux, NVME, Opinion, Rock Pi N10, U-Boot | Tagged aarch64, arm64, boot from nvme, fedora 38, nvme, rock pi n10, success, u-boot | Leave a reply

ARM64 – Pi4 – Finally, a fix for the USB Issues..

Adventures With Linux ™ Posted on September 3, 2021 by RGSeptember 3, 2021

I had spent far too much time trying to solve the Pi4 USB conundrum ( see https://rglinuxtech.com/?p=2922 ) but did recently find that the 5.14-rc kernels enabled the USB3 hub, although USB2 still failed to function.    I then updated u-boot to the ‘latest’ version, and now everything (finally..) works as it should, again..: Updated u-boot to latest … Continue reading →

Posted in aarch64, compilation, fixed, hardware, Linux, Linux / ARM, Opinion, Raspberry Pi 4, U-Boot | Tagged fixed, kernel 5.14, raspberry pi 4, update to latest u-boot, usb problems | Leave a reply

ARM64 – Pi 4 USB Problems – And a Messy Fix..

Adventures With Linux ™ Posted on May 11, 2021 by RGMay 11, 2021

After some delay, I finally had a ‘good’ cooling solution for my 8GB Pi4, and resumed testing.. The last Kernel version I had running on it was 5.9-rc4, and everything seemed to be working OK (including 8GB of memory recognised). I then updated to 5.11.18, and found that none of the USB ports worked: # dmesg |grep … Continue reading →

Posted in aarch64, Crash and Burn.., Fedora, fix, Hacks, kernel, Linux / ARM, Opinion, patches, quirks, Raspberry Pi 4 | Tagged 5.10.34 fails, 5.11.18 with RH patchset, 5.12 fails, 5.13-rc fails, 5.9.16 works, 8gb, pi4, usb fails, workaround | 3 Replies

ARM – Vim3-Pro – with EFI and Fedora 33..

Adventures With Linux ™ Posted on January 5, 2021 by RGJanuary 5, 2021

Recently acquired one of the Khadas VIM3-Pro arm64 SoCs, and was impressed with the level of documentation available.. Unfortunately – as is so often the case – this was all relentlessly Ubuntu-focussed, with a semi-proprietary kernel based on the 4.X kernel tree.. At least the U-Boot version was fairly recent, and appeared to support EFI etc.. The … Continue reading →

Posted in aarch64, arm, ARM64, Fedora, Hacks, hardware, kernel, Linux / ARM, U-Boot, UEFI | Tagged arm64, efi, fedora 33, khadas, success, u-boot, vim3-pro | 1 Reply

ARM64 – Fedora 33 Pre-release Kernel Boot Problem – and Workaround..

Adventures With Linux ™ Posted on August 26, 2020 by RGAugust 26, 2020

I have been testing Fedora 33 pre-release, and on x86_64 it seems relatively stable (usual caveats…) but on arm64 systems (Odroid N2 and Pi4) I found that after compiling a new kernel (5.8.3), the system booted, but login was impossible, and screen output was missing  (uart/console was OK). Kernels compiled with Fedora 32 all booted OK, and … Continue reading →

Posted in aarch64, ARM64, boot, compilation, Crash and Burn.., Fedora, Hacks, kernel, Linux / ARM, Odroid N2, Opinion | Tagged arm64, boot problem, cross-compile, fedora 33, kernel 5.8.3, login imposssible, modules not loading, timeout, workaround, x86_64 ok | Leave a reply

ARM64 – 8GB Pi4 – Fun with Fedora..

Adventures With Linux ™ Posted on July 18, 2020 by RGJuly 18, 2020

My 8GB Raspbery Pi 4 finally arrived, and I was looking forward to trying Fedora 32 and KDE/Plasma on it, and comparing it to the Odroid N2 from a few months back.. ( http://rglinuxtech.com/?p=2689 ) The Fedora 32 aarch64 install is supposed to support the Pi 4 now, but the resulting sdcard image failed to boot, with … Continue reading →

Posted in aarch64, compilation, Crash and Burn.., Fedora, Hacks, KDE, kernel, Linux / ARM, new install, Raspberry Pi 4 | Tagged 8gb, aarch64, fedora 32, fedora install, hybrid, kde/plasma too slow, opensuse efi substitute, opensuse u-boot, raspberry pi 4, success | Leave a reply

ARM64 – Odroid N2 – Latest U-Boot, Kernel 5.6-rc2, EFI, Fedora 31, Plasma/Wayland

Adventures With Linux ™ Posted on February 17, 2020 by RGFebruary 17, 2020

I have recently acquired an Odroid N2 (4GB) and managed – with some difficulty – to get it to run a ‘modern’ U-Boot, Kernel 5.6-rc2, with EFI support, and Fedora 31. This time, there were no clues from OpenSuse, and all the examples I found still used the ancient/custom Hardkernel u-boot and a kernel.img ‘blob. Fortunately, the … Continue reading →

Posted in aarch64, ARM64, Fedora, Hacks, kernel, Linux / ARM, Odroid N2, quirks, U-Boot, UEFI | Tagged arm64, efi, fedora 31, kernel 5.6-rc2, odroid n2, plasma/wayland, u-boot | 2 Replies

ARM – Original Hikey Updated and Fixed – with Gotchas..

Adventures With Linux ™ Posted on September 9, 2019 by RGSeptember 9, 2019

After successfully updating and re-configuring the Odroid C2 to use Fedora uefi/grub2 to boot, I decided to try to do the same to the even-older Hikey SOC. This already booted using fastboot with an older version of grub, with manual configuration, but I wanted to use the standard (Fedora) boot process. I had read that there was … Continue reading →

Posted in aarch64, arm, Fedora, fix, Hacks, Hikey, kernel, Linux, Opinion, UEFI | Tagged 6220, aarch64, arm64, boot, configuration, fedora, gotchas, grub, hikey, soc, uefi, workarounds | Leave a reply

ARM – Odroid C2 – Updated..

Adventures With Linux ™ Posted on August 19, 2019 by RGAugust 19, 2019

When the Odroid C2 was first released way back in 2016, I spent ages trying to get it to function correctly with a mainstream kernel, and tested innumerable development versions of U-Boot, including functionality that was working OK at that time, but that – for some reason – then failed to be included in the ‘mainstream’ U-Boot.. … Continue reading →

Posted in aarch64, Fedora, fix, grub, Hacks, Linux, Odroid C2, Opinion, quirks, U-Boot | Tagged fedora 30, odroid c2, opensuse, working u-boot with grub | Leave a reply

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