There is now an ‘official’ fix for the 4.10-rc1 compile failure with ARM64/aarch64, from Al Viro, and the patch itself is available here: https://git.kernel.org/cgit/linux/kernel/git/viro/vfs.git/commit/?h=arm64-fix&id=b4b8664d291ac1998e0f0bcdc96b6397f0fe68b3 I have applied this to kernel 4.10-rc1 on the Odroid C2, and the kernel compiles successfully.. Robert Gadsdon. December 27, 2016. … Continue reading →
After applying the aarch64 compile fix (see previous article) I was able to compile Kernel 4.10-rc1 on the Odroid C2, and it boots OK (headless..), and the Ethernet link stays up, but still needs the TX patch.. (updated, as the link did still hang – eventually.. RG).. ……….. meson8b-dwmac c9410000.ethernet eth0: Link is Up – 1Gbps/Full – … Continue reading →
After some of the recent ‘Ethernet fix’ patches have not worked with more recent linux-next kernels, I have found one that – at least at the moment – does fix the ‘hang’ problem – again.. The patch is applied to meson-gxbb-odroidc2.dts, and can be found here: http://archive.arm.linux.org.uk/lurker/message/20161221.113134.3ac4d1e6.en.html I did have to revert this kasir_offset patch (…-R) to … Continue reading →
Recent versions of the Linux net-next tree could not be tested on the C2, as the meson-gx mmc driver was missing, but now it has been added, and I tested the latest version (December 17) – but the Ethernet hang is still there.. To be fair, this is probably because of the current patch conflict that has … Continue reading →
The old meson Ethernet fix/patch/hack no longer applies cleanly to the latest (December 1) linux-next, but – fortunately – there is a ‘better’ patch available for the meson8b-dwmac driver itself.. Details can be found in this thread: http://lists.infradead.org/pipermail/linux-amlogic/2016-November/001675.html I have applied these patches to the December 1 linux-next tree, on the Odroid C2, and the Ethernet link … Continue reading →
The ‘linux-next’ kernel branch has included the meson/gxbb mmc driver for some time, but the boot process hung on root disk access. I tested with the latest (November 17) version, and this time, the boot process completed successfully: Fedora 25 (Workstation Edition) Kernel 4.9.0-rc5-next-20161117-c2 on an aarch64 (ttyAML0) The only patch I applied was the meson_ethernet_tx one … Continue reading →
Thanks to Jerome Brunet, there is now a fix for the long-standing Ethernet hang problem on the C2.. Details are here: http://lists.infradead.org/pipermail/linux-amlogic/2016-November/001538.html The patch is an attachment – named ‘attachment.bin‘, and so will need to be renamed to something appropriate.. I applied this to the 4.9-rc3-derived version of the C2 patched kernel, from https://git.kernel.org/cgit/linux/kernel/git/khilman/linux-amlogic.git/log/?h=v4.10/integ.. There is a … Continue reading →
I had been constantly frustrated by the Odroid C2 meson8b-dwmac Ethernet ‘hang’ problem, which has persisted over (at least..) eight different ‘patched kernel’ versions that I have tested.. The network link hung/stopped after a short time at full (1000Mbps) speed, and also – sometimes after a bit longer – at reduced (100Mbps) speed.. The driver does show … Continue reading →
After some of the code for the C2 has been removed from various git repositories, there is a new 4.9-rc1-based tree at https://git.kernel.org/cgit/linux/kernel/git/khilman/linux-amlogic.git/?h=v4.10/integ , which now includes the ‘new’ rewritten MMC driver. To select this, choose ‘Amlogic S905/GX* SD/MMC Host Controller support (MMC_MESON_GX)‘ in the kernel config.. …… Fedora 24 (Workstation Edition) Kernel 4.9.0-rc1-c2 on an aarch64 … Continue reading →
I was going to update the Odroid C2 to the latest patched kernel, but then found that the meson-mmc driver had mysteriously vanished from the source tree.. This – of course – makes the kernel pretty useless… I did some research, but could not find any specific mention of the removal of this code, but then found … Continue reading →