Hello, Newbie alert. I've tailored a Kconfig for the GX6605S dev board based on defconfig, which required to drop "if COMPILE_TEST" for GX6605S_TIMER since nothing was selecting it. I've forward-ported the board's binary dtb to match the upstream bindings (still need to do some cleanups before I can post it here). Mainly compatibles and one clock-frequency -> clocks. Here's how far I've come with the uImage: ... [ 60.977460] sd 0:0:0:0: [sda] Attached SCSI removable disk [ 61.357214] random: crng init done [ 64.539130] EXT4-fs (sda2): mounted filesystem with ordered data mode. Opts: (null) [ 64.763086] VFS: Mounted root (ext4 filesystem) on device 8:2. [ 66.946712] devtmpfs: mounted [ 67.058804] Freeing unused kernel memory: 100k freed [ 67.205338] This architecture does not have kernel memory protection. [ 67.386763] Run /sbin/init as init process [ 77.719086] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 77.927527] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]--- Note how the time is quite fast with the downstream frequency of 1 MHz. Sadly there's no public manual for the GX6605S SoC, only for CK610 CPU. 24 MHz matches the wall clock much better, indicating about 3 seconds. I've also tried using /bin/sh with the equivalent result. The rootfs is the one from usb.img from the C-Sky GitHub pages (modified to spawn getty for ttyS0), which booted okay with its binary 4.9 kernel. So, does this mean that syscalls or something changed incompatibly between downstream 4.9 and upstream 5.2 that I would need a new rootfs? Or does this mean that I'm still missing some Kconfig setting or that some fix/feature for CK610 hasn't made it into the mainline kernel yet? Did anyone here succeed with mainline on GX6605S yet? Thanks for any directions, Andreas https://hackweek.suse.com/18/projects/investigate-c-sky-architecture -- SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 21284 (AG Nürnberg)
