Hi all, I try to boot a Rock64, but it crashes just after printing "clk: Disabling unused clocks". If i put clk_ignore_unused kernel command line item, it proceeds further. Looking at clk/clk.c, it looks like each clock has a kind of reference count. However, i couldn't see any acquire/release in kernel/time/clocksource.c. Not sure it is the underlying problem however. Any idea how to sort this out? Reproducible: Always
Hi .. this is not a general gentoo problem, because you are compiling your kernel "at your own" This can be anything .. - Did you have a running kernel with a lower version number ? - "clk: Disabling unused clock" is a normal procedure and should not crash - dmesg missing - missing compiled in drivers (which are needed to start) Rock64 looks like a rk3399 or ek3328 SoC ?
Created attachment 888825 [details] dmesg with clk_ignore_unused Hi, Thanks for your help. Indeed, Rock64 is RK3328 based (with RK805 providing power and RTC). I never had any kernel working on this SBC, i'm trying to make one. Here is the dmesg with clk_ignore_unused. Without, it just stops at "clk: Disabling unused clocks"
Created attachment 888826 [details] config And here is the config i used, it is a work in progress (and do not have proper sd block support).
(In reply to Étienne Buira from comment #3) > Created attachment 888826 [details] > config > > And here is the config i used, it is a work in progress (and do not have > proper sd block support). You ever try one of these kernels? https://github.com/ayufan-rock64/linux-mainline-kernel
(In reply to Mike Pagano from comment #4) > You ever try one of these kernels? > > https://github.com/ayufan-rock64/linux-mainline-kernel Hi, Nope, i didn't use any other kernel than gentoo-sources, and ideally, i'd like to stick to it.
Just an update if someone is interested. The issue is uart2 (which i get my output from) clock gets disabled while in use.
> VFS: Cannot open root device "/dev/mmcblk1p5" or unknown-block(0,0) you should set CONFIG_MMC_DW also for network and usb CONFIG_DWMAC_ROCKCHIP CONFIG_USB_DWC3
(In reply to Hans Ulli Kroll from comment #7) > > VFS: Cannot open root device "/dev/mmcblk1p5" or unknown-block(0,0) > > you should set CONFIG_MMC_DW > > also for network and usb > CONFIG_DWMAC_ROCKCHIP > CONFIG_USB_DWC3 Thanks, i added MMC_DW, and MMC_DW_ROCKCHIP, it looks like recognised, but do not show up in available partitions (MMC_BLOCK is in too). I'm not at the point of configuring network and usb now :)
Closing as INVALID as this seems to be kernel config related and insufficient info has been provided to identify any "bug".
There actually _is_ a bug, not related to config, and expressed/understood better in comment #6. I also provided all information requested.
(In reply to Étienne Buira from comment #5) > (In reply to Mike Pagano from comment #4) > > You ever try one of these kernels? > > > > https://github.com/ayufan-rock64/linux-mainline-kernel > > Hi, > > Nope, i didn't use any other kernel than gentoo-sources, and ideally, i'd > like to stick to it. What I mean is, do they have a working config you can start from to use on gentoo-sources?
Created attachment 888952 [details] config.v6.6
Hello Étienne this should be a kernel config error first ! You also missed CONFIG_MTD_OF_PARTS Maybe more options are missing, I don't know. The easiest part is to use a running kernel from ayufan an use the config from there. I you dare to use your own compiled kernel, you can start with my config. Please be aware most kernels use modules to load the driver, which are on rootfs. So you must copy this on your eMMC or sdcard. Or compile this into your kernel image, but sometimes here is some size problem with the bootloader. IFAIR it's about 32 MiB
Created attachment 889019 [details, diff] workaround This really looks like a kernel bug, as this patch works around it for my use-case. But the underlying problem is kernel does not figure out this clock is used and needed by current console. OT about config: Thank you Hans, i got a working kernel now.
Please apologise, enabling some specific quirk solved the issue.
