I had tried to update the Odroid U3 to Kernel 4.0-rc5 – using the patched source from https://github.com/tobiasjakobi/linux-odroid/tree/odroid-4.0.y – a few days ago, but the boot failed: hub 1-3:1.0: 3 ports detected INFO: rcu_sched detected stalls on CPUs/tasks: { 0} (detected by 1, t=4202 jiffies, g=-255, c=-256, q=2) Task dump for CPU 0: swapper/0 R running 0 … Continue reading →
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 3.19.2 refused to boot (nothing on console) Pi2: Kernel 3.19.1 booted and then crashed: BCM2708FB: allocated DMA … Continue reading →
Updated the Odroid U3 to Kernel 4.0-rc4, from the patched source here: https://github.com/tobiasjakobi/linux-odroid/tree/odroid-4.0.y This time, the system booted successfully.. Fedora release 21 (Twenty One) Kernel 4.0.0-rc4 on an armv7l (ttySAC1) ……………. ]# uname -a Linux rgodroid 4.0.0-rc4 #1 SMP Wed Mar 18 23:53:05 PDT 2015 armv7l armv7l armv7l GNU/Linux Robert Gadsdon. March 19, 2015. … Continue reading →
Updated the CuBox-I4Pro to Kernel 4.0-rc4 – from kernel.org, and – at last – networking works without the need for the mach-imx6q.c patch. Fedora release 22 (Twenty Two) Kernel 4.0.0-rc4 on an armv7l (ttymxc0) …………………… # uname -a Linux rgcubox 4.0.0-rc4 #1 SMP Sun Mar 15 21:55:09 EDT 2015 armv7l armv7l armv7l GNU/Linux Details of changes from … Continue reading →
As there is no later version of the Odroid-specific 4.0 kernel source available yet, I decided to test with the standard 4.0-rc3 from kernel.org, but the U3 booted – and then Panic‘d.. ……………………….. EXT4-fs (mmcblk0p3): mounted filesystem with ordered data mode. Opts: (null) VFS: Mounted root (ext4 filesystem) on device 179:3. devtmpfs: mounted Freeing unused kernel memory: … Continue reading →
I had been using the armv7hl-mandriva-linux-gnueabi- cross-compiler, but that gcc version is a bit out-of-date now (version 4.6.1). I found a more recent version, for Fedora, here: http://rpmfind.net//linux/RPM/fedora/updates/testing/21/x86_64/g/gcc-arm-linux-gnu-4.9.2-3.fc21.x86_64.html Using yum, this will also install binutils-arm-linux-gnu-2.25-3.fc21.x86_64 and cross-gcc-common-4.9.2-3.fc21.noarch and cross-binutils-common-2.25-3.fc21.noarch, to prvide the rest of the cross-compile environment. It should be noted that this is only suitable for … Continue reading →
Updated the Cubox-i4Pro to Kernel 4.0-rc3, and still needed to apply the one-line patch to linux/arch/arm/mach-imx/mach-imx6q.c, to get networking to work.. http://rglinuxtech.com/?p=1338 Fedora release 22 (Twenty Two) Kernel 4.0.0-rc3 on an armv7l (ttymxc0) ………… ]# uname -a Linux rgcubox 4.0.0-rc3 #3 SMP Mon Mar 9 20:19:45 EDT 2015 armv7l armv7l armv7l GNU/Linux The DreamPlug was OK, and … Continue reading →
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.. http://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 →
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 →
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 →