Thank you all, I grep(ed) -r NCT6 in sys and didn't find wbsio, I guess those christmass holydays will be much welcome !
Does the wbsio detect the watchdog in the apu card ? On Thu, Dec 11, 2014 at 5:56 AM, Mark Kettenis <mark.kette...@xs4all.nl> wrote: >> Date: Thu, 11 Dec 2014 05:08:11 -0500 >> From: Matt Dainty <m...@bodgit-n-scarper.com> >> >> * sven falempin <sven.falem...@gmail.com> [2014-12-10 12:32:15]: >> > On Wed, Dec 10, 2014 at 9:31 AM, Stuart Henderson <st...@openbsd.org> >> > wrote: >> > > On 2014/12/10 09:15, sven falempin wrote: >> > >> http://lxr.free-electrons.com/source/drivers/hwmon/nct6775.c >> > >> >> > >> https://github.com/groeck/nct6775 >> > >> >> > >> So i guess the first step is to detect the chip >> > > >> > > You'll also need somewhere (files) to put the detection. Maybe look at >> > > the commit from when tcpcib was added as an example. >> > > >> > > It might be somewhat similar to the Winbond superio chips (Nuvoton is >> > > a spin off company). >> > > >> > >> On Wed, Dec 10, 2014 at 8:32 AM, sven falempin >> > >> <sven.falem...@gmail.com> wrote: >> > >> > I guess the chip used is obviously this one : >> > >> > >> > >> > Nuvoton NCT6106D >> > >> > >> > >> > spec : >> > >> > https://download.nuvoton.com/NuvotonMOSS/DownloadService/Member/DocumentsInfo.aspx?tp_GUID=DA00-NCT6106D >> > > >> > > The watchdog part of this appears to use the same registers as NCT5104D >> > > in the pcengines APU. >> > >> > Well the sequence to configure is the same in the doc >> > >> > << >> > 7.1.1 Enter the Extended Function Mode >> > To place the chip into the Extended Function Mode, two successive >> > writes of 0x87 must be applied to Extended >> > Function Enable Registers (EFERs, i.e. 2Eh or 4Eh). >> > >> >> > >> > I am not sure i understand, is this a pci device or a isa device ? >> >> Have a look at the wbsio(4) driver. There's already a constant defined for >> the NCT6776 so you probably just need to add the missing ID(s) and go from >> there. > > Yes indeed. That's the correct thing to do. According to the > datasheet the Chip ID is 0x10, but we have found that recent Nuvoton > datasheets often lie about this, so you might want to enable the > printf in wbsio_probe() to see what the real chip ID is. > > Looks like the chip has a hardware monitoring function as well. Might > be possible to add support for this to lm(4). > > I believe somebody wrote a diff to add watchdog support for this > family of chips at some point. A bit of a problem is that on some of > these chips the watchdog timer signal is multiplexed on one of the > GPIO pins and that pin is often configurable. Which pin to use (or > whether the watchdog works at all) depends on the motherboard layout. > And the pin that works on your motherboard might be the self destruct > button on some other motherboard. That's why we didn't pursue this > any further at the time. Things might be a bit saner for your chip > though. > > Cheers, > > Mark -- --------------------------------------------------------------------------------------------------------------------- () ascii ribbon campaign - against html e-mail /\
