Hello Oliver, On Tue, Jul 23, 2019 at 10:28:18PM +0200, Oliver Hartkopp wrote: > I'm running a TS-119P+ and a TS-219P II Qnap NAS with Debian Buster. > Both are now running a linux-image-4.19.0-5-marvell kernel. > > But since my update from Linux 4.9 (Stretch) to Linux 4.19 (Buster) the > hardware clock of both boxes refuse to work. > > After some digging in kernel sources and re-installing Linux 4.9 on my > Buster setup it turns out, that a change in the kernel config causes the > problem: > > 4.19.0-5-marvell -> CONFIG_RTC_DRV_S35390A=m (fails) > > 4.9.0-4-marvell -> CONFIG_RTC_DRV_S35390A=y (works) > > See details and solving process at: > > https://marc.info/?l=linux-arm-kernel&m=156390875629259&w=2 > > Can you please revert the Kernel config parts for the RTC in a way that the > RTC drivers are built into the marvell-arch kernel again instead of building > them as modules? They were switched to modules because the kernel image got too big to fit into the flash storage of some machines. I assume when we switch to built-in again the resulting problem is the bigger one. > As described in the referenced description the hwclock tool does not work on > the machines. I'm not sure yet if this is a problem in hwclock() or the s35390a driver. Best regards Uwe
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