Judging by this post here: https://blog.netbsd.org/tnf/entry/pinebook Compared to the recent pinebook status updates: https://mail-index.netbsd.org/port-arm/2019/08/24/msg006080.html with dmesg: https://github.com/ebijun/NetBSD/blob/master/dmesg/aarch64/pinebook It seems that the rtc used to be detected correctly and now is not. I saw this commit message in openbsd: Adapt to allwinner device tree changes in linux >= 5.0-rc1 "allwinner,sun6i-a31-rtc" has been removed from h3/h5/r40/a64 With this change: https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/dev/fdt/sxirtc.c.diff?r1=1.2&r2=1.3 (see here for full log of sxirtc.c in openbsd: https://cvsweb.openbsd.org/src/sys/dev/fdt/sxirtc.c) Can we get these changes ported across to netbsd? Here is my attempt (not including the later clock support changes): Index: sunxi_rtc.c =================================================================== RCS file: /cvsroot/src/sys/arch/arm/sunxi/sunxi_rtc.c,v retrieving revision 1.4 diff -r1.4 sunxi_rtc.c 131a132,133 > { "allwinner,sun8i-h3-rtc", (uintptr_t)&sun6i_rtc_config }, > { "allwinner,sun50i-h5-rtc", (uintptr_t)&sun6i_rtc_config }, -- ioh