Updated the CuBox-i4Pro and DreamPlug to Kernel 4.0-rc2.. No problems with the DreamPlug, and the CuBox just needed the same small patch as for -rc1.. https://rglinuxtech.com/?p=1338 CuBox-i4Pro: Fedora release 22 (Twenty Two) Kernel 4.0.0-rc2 on an armv7l (ttymxc0) ……………. ]# uname -a Linux rgcubox 4.0.0-rc2 #1 SMP Tue Mar 3 21:35:27 EST 2015 armv7l armv7l armv7l GNU/Linux … Continue reading →
Installed Kernel 4.0-rc2 on the test system, and details of changes from -rc1 are here: http://lkml.iu.edu/hypermail/linux/kernel/1503.0/01963.html Radeon on the HP6830 laptop is still broken: [drm r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xFFFFFFFF) radeon 0000:01:00.0: disabling GPU acceleration << HANG >> Same comments apply as for -rc1 – the patched NVIDIA 346.47 driver and VMware 11.1 … Continue reading →
Now that the DreamPlug has a stable power supply (see previous post..) I decided to live dangerously and update the u-boot version and install a modern ‘device tree’ plus kernel.. It has been mentioned many times before that the u-boot update for a DreamPlug is fraught, and can result in a ‘brick’.. There should be a way … Continue reading →
Tested the new NVIIDIA driver 346.47, and it still needs the patch for Kernel 4.0-rc1.. https://rglinuxtech.com/?p=1332 More details here: http://www.nvidia.com/Download/driverResults.aspx/82252/en-us Robert Gadsdon.. February 25, 2015. … Continue reading →
The CuBox-i4 Pro booted Kernel 4.0-rc1 OK, but – although eth0 was present – there was no network connection possible.. I found a similar problem described on the Linux Arm Kernel mailing list: http://lists.infradead.org/pipermail/linux-arm-kernel/2015-February/325249.html According to the info there, I changed linux/arch/arm/mach-imx/mach-imx6q.c as follows: Around line 214, change clksel = ptp_clk == enet_ref ? IMX6Q_GPR1_ENET_CLK_SEL_ANATOP : IMX6Q_GPR1_ENET_CLK_SEL_PAD; … Continue reading →
Tried Kernel 4.0-rc1 on the CuBox-i4 Pro (from kernel.org) and the Odroid U3 (from https://github.com/tobiasjakobi/linux-odroid/tree/odroid-4.0.y), and the results are a bit of a mixed bag.. The CuBox boots OK, but – although eth0 appears to be present – networking doesn’t work.. Fedora release 22 (Twenty Two) Kernel 4.0.0-rc1 on an armv7l (ttymxc0) ……………. [root@rgcubox ~]# uname -a … Continue reading →
I have hacked together a kernel-version-friendly fix for the latest NVIDIA driver (346.35) which works with Kernel 4.0-rc1 (and later) and also for previous kernel versions.. Thanks are due to juston_li for producing the actual code changes needed.. https://devtalk.nvidia.com/default/topic/813458/linux/linux-4-0-rc1-346-35-build-error-_cr4-functions-fix/ Unpack the NVIDIA driver: ./NVIDIA-Linux-x86_64-346.35.run -x Edit NVIDIA-Linux-x86_64-346.35/kernel/nv-pat.c Around line 34, change { unsigned long cr0 = read_cr0(); … Continue reading →
Just tested Kernel 4.0-rc1 – announced here: http://lkml.iu.edu/hypermail/linux/kernel/1502.2/04059.html As you will see – not much actual detail on what has changed, and I have already run into a couple of ‘issues’… The Radeon drm driver on my laptop refuses to load, and the boot hangs immediately with drm r600_ring_test [radeon] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xFFFFFFFF) … Continue reading →
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 latest config.txt with the necessary parameters for device tree boot, sound config, etc.. For cross-compilation, I created … Continue reading →
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 other quad-core armv7 systems.. Compiling on the Pi 2 itself seemed relatively slow, but at least it … Continue reading →