As Odroid C2 support by the ‘mainline’ kernel is – hopefully – nearing completion, I have put a sample of my Kernel config at http://pastebin.com/XWfMEWHx . The C2 is used for ‘headless’ operation, at present, and USB still does not work.. The kernel is 4.10-rc3, with the ‘Ethernet-TX’ dts patch applied.. (see http://rglinuxtech.com/?p=1872 ). Robert Gadsdon. January … Continue reading →
Kernel 4.10-rc2 has been released, and it has a very small number of changes from -rc1: http://lkml.iu.edu/hypermail/linux/kernel/1701.0/00069.html I suspect that the major reason for this release is to fix the embarrassing compile fail with ARM64/aarch64, and it does compile OK now (tested on the Odroid C2).. Robert Gadsdon. January 2, 2017. … Continue reading →
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 →
Tried compiling Kernel 4.10-rc1 for aarch64, and got – literally – hundreds of errors: …… ./include/linux/sched.h:3299: Error: unknown mnemonic `return’ — `return test_ti_thread_flag(task_thread_info(tsk),flag)’ ./include/linux/sched.h:3300: Error: junk at end of line, first unrecognized character is `}’ ./include/linux/sched.h:3302: Error: unknown mnemonic `static’ — `static inline void set_tsk_need_resched(struct task_struct*tsk)’ ./include/linux/sched.h:3303: Error: junk at end of line, first unrecognized character is … 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 →
I had been trying to apply the latest round of Meson TX delay patches to the latest linux-next tree, but found that there seems to be a conflict with some of these.. The December 1 patched kernel now has some problems on my C2 with Ethernet traffic, so – for the time being – I have reverted … 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 →